Onkyo HT-R820THX User manual
HT-R820THX
SERVICE MANUAL
SERVICE MANUAL
AV RECEIVER
Black model
MODEL HT-R820THX
120V AC, 60HzBMDC
Ref. No. 3838
102004
RC-571M
STANDBY/ON
PHONES
DISPLAY TUNING MODEDIGITAL INPUT
LISTENING
MODE
THX MEMORY
RETURNSETUP
VIDEO 2TAPE TUNER CD
VIDEO 3
VIDEO 1
SPEAKERS BA
MASTER VOLUME
ENTER
S VIDEO VIDEO AUDIO
VIDEO 3INPUT
CLEAR
TUNING
PRESET
HT-R820THX
STANDBY
LR
TONE
VCR
CD
+10 0
CLEAR
123
456
789
V1 V2 V3
DVD MULTI CH
--/---
TAPE TUNER
INPUT
I
+
-
ENTER
S
E
T
U
P
G
U
I
D
E
R
E
T
U
R
N
E
X
I
T
Re-EQ
CH SEL
TEST TONE
DSP
DIRECT
STEREO
ALL ST
SURR
L NIGHT
T
O
P
M
E
N
U
M
E
N
U
VOL
+
-
CDR
SAT
AMP
TV VCR
CABLE
DVD
CD MD
DISC
CH
TONE TUNER/
TAPE
DISPLAY
TV
INPUT
PREV
CH
DIMMER SLEEP
RANDOM
SP A SP B
MUTING
ANGLE
SEARCH
SUBTITLEAUDIO
MEMORYA-BREPEAT
ON STANDBY T
V
TV CH
T
V VOL
RC-571M
REC
LAST M
REMOTE MODE
OPEN/CLOSE
DSP
THX
VIDEO OFF
OR-EQ
LEVEL
-
LEVEL+
+
_
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
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HT-R820THX
SPECIFICATIONS
Amplifier Section
Video Section
Tuner Section
General
Audio Outputs
Analog outputs:
Subwoofer pre out:
Speaker outputs:
Phones:
Specifications and features are subject to change without notice.
Power supply:
Power consumption:
Standby power consumption:
Dimensions
(W x H x D):
Weight:
AC 120 V, 60 Hz
6.6 A
2.5 W
17-1/8" x 5-7/8" x 14-13/16"
(435 x 150 x 376 mm)
22.5 lbs. (10.2 kg)
Video Inputs
Component video inputs:
S-Video inputs:
Video inputs:
2 (DVD, Video 1/2/3)
4 (DVD, Video 1-3)
4 (DVD, Video 1-3)
2 (Tape Out, Video 1 Out)
1
6+2
1
4 (Optical 1-3, Coaxial)
6 (CD, Tape, DVD, Video 1-3)
5.1 ch (Front L/R, Center, S
urround L/R, Subwoofer)
Audio Inputs
Digital inputs:
Analog inputs:
Multichannel analog inputs:
1 (Component Video Out)
2 (Video 1 Out, Monitor Out)
2 (Video 1 Out, Monitor Out)
Video Outputs
Component video outputs:
S-Video outputs:
Video outputs:
FM
Tuning frequency range:
Usable sensitivity:
S/N ratio:
THD:
FM stereo separation:
87.5-107.9 MHz
FM STEREO 17.2 dBf, 2.0 µV (75 IHF)
FM MONO 11.2 dBf, 1.0 µV (75 IHF)
FM STEREO 70 dB (IHF-A)
FM MONO 76 dB (IHF-A)
FM STEREO 0.3% (1 kHz)
FM MONO 0.2% (1 kHz)
45 dB at 1 kHz
AM
Tuning frequency range:
Usable sensitivity:
S/N ratio:
THD:
530-1710 kHz
30 µV
40 dB
0.7%
Input sensitivity, output
level and impedance:
Component video
frequency response:
1.0 Vp-p/75
(component and S-Video Y)
0.7 Vp-p/75
(component PB/CB, PR/CR)
0.28 Vp-p/75 (S-Video C)
1.0 Vp-p/75 (composite)
5 Hz-50 MHz
Power output:
All channels:
Dynamic power:
THD (total harmonic
distortion):
Damping factor:
Input sensitivity and
impedance:
Output level and impedance:
Frequency response:
Tone control:
S/N ratio (Direct mode):
Speaker impedance:
130 W (8 , 20 Hz-20 kHz, FTC)
2 x 260 W (3 , front)
2 x 200 W (4 , front)
2 x 150 W (8 , front)
0.08% (rated power)
60 (front, 1 kHz, 8 )
200 mV/47 k (LINE)
200 mV/470 (REC OUT)
10 Hz-100 kHz/+1 dB,
-3 dB (Direct mode)
±12 dB, 50 Hz (BASS)
±12 dB, 20,000 Hz (TREBLE)
100 dB (CD, IHF-A)
8 ~
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
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SERVICE PROCEDURES
HT-R820THX
1. Replacing the fuses
This symbol located near the fuse indicates that the
fuse used is show operating type, For continued protection against
fire hazard, replace with same type fuse, For fuse rating, refer to
the marking adjacent to the symbol.
Ce symbole indique que le fusible utilise est e lent.
Pour une protection permanente, n'utiliser que des fusibles de meme
type. Ce demier est indique la qu le present symbol est apposre.
3. To initialize the unit
This device employs a microprocessor to perform various
functions and operations. If interference generated by an external
power supply, radio wave, or other electrical sauce results in accident
which causes the specified operations and functions to operate
abnormally.
To perform a result, please follow the procedure below.
1. Press and the hold down the VIDEO 1 button, then press the
STANDBY/ON button when the unit is Power On.
2. After "Clear" is displayed, the preset memory and each mode
stored in the memory, are initialized and will return to the
factory settings.
REF NO. PART NO. DESCRIPTION
F6901, F6902
F6901, F6902
F6901 or, F6902 or
F901
F901 or
F903
F903 or
252199
252100
252307
252198
252261
252164
252258
10A-UL
10A-EAK
10A-TL250V
8A-UL
8A-T/UL-ST2
5A-UL/T-237
5A-T/UL-ST2
2. Safety-check out
After correcting the original service problem perform the
following safety check before releasing the set to the customer
Connect the insulating-resistance tester between the plug of
power supply cord and terminal GND on the back panel.
Specifications: More than 10Mohm at 500V
The HT-R820THX uses a battery-less memory backup
system in order to retain radio presets and other settings
when it's unplugged or in the case of a power failure.
Although no batteries are required, the HT-R820THX
must be plugged into an AC outlet in order to charge the
backup system.
Once it has been charged, the HT-R820THX will retain
the settings for several weeks, although this depends on
the environment and will be shorter in humid climates.
5. Memory backup
REMARKS
<Note>
Main microprocessor Q7008 only.
1. Press and the hold down the DISPLAY button , then press the
STANDBY/ON button when the unit is Power ON.
Version is displayed on FL display only for 3 seconds.
2. Press the STANDBY/ON button to Power Off.
4. To check version of microprocessor
Ver. 075 (04809a)
<ex.>
NCDG-8230
25138230B
GND
232RXD
232TXD
NC
FVCC
P7701
Q7008
Main microprocessor
6. Changing the AM band step
1. Necessary to change as follows.
R7003 Change to 10 kohms. Refer to <Fig-1>
R7004 Change to 10 kohms. Refer to <Fig-1>
2. To select.
Press and hold down the TUNER button , then press the
MEMORY button.
Component side
<Fig-1>
NADG-8230 (Pre-amplifier PC board)
R7004
R7003
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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OPERATION CHECK-1
DC VOLTAGE DETECTION PROTECTORS
HT-R820THX
1. Set the unit to test mode " Test-4-00 " .
1-1. Press and the hold down the CD button , then press the STANDBY/ON button when the unit is Power On.
1-2. Press the VIDEO 3 button, while the " Test - _ " is shown.
Unit will be in the state of " Test-4-00 ".
2. Repeat and press SPEAKERS B to the " Test-4-20 " is shown.
3. Check that the " Protect OK " is shown and speaker relays are turn Off.
If a circuit is failure, the " Protect NG " is shown.
4. Check about the " Test 4-21 " to " Test 4-31 " one by one.
Refer to <Fig-1> about the operation method.
5. Press the STANDBY/ON to power Off. (Exit the test mode.)
<Note1>
In test mode " Test 4-20 " to " Test 4-31 ", DC voltage is outputted from DSP IC a pre-amplifier section, and it is inputted into a
power amplifier circuit.
Therefore an external input is unnecessary in check.
<Note2>
Don't connect speakers or any load.
Don't short speaker terminals.
Test - _
Test - 4-00
Test - 4-20
Protect OK
Protect NG
Test - 4-20
Press
" SPEAKER B " button.
Test - 4-21
Press
" SPEAKER B " button.
Test - 4-22
Operation method
Press on " SPEAKER B " button ---> Next step
Press on " SPEAKER A " button ---> Retarn
Test - 4-31
<Fig-1>
Press
" SPEAKER A " button.
Press
" SPEAKER A " button.
Details of TEST MODE 4-20 to 4-31
TEST MODE
4-20
4-21
4-22
4-23
4-24
4-25
4-26
4-27
4-28
4-29
4-30
4-31
DSP
output ch.
FL
FR
C
SL
SR
SB
FL
FR
C
SL
SR
SB
DSP
output voltage
+DC
- DC
+DC
+DC
- DC
+DC
- DC
+DC
- DC
+DC
- DC
+DC
MASTER VOLUME = MAX.
blinks
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
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OPERATION CHECK-2
CURRENT DETECTION PROTECTORS
HT-R820THX
1. Set the unit to test mode " Test-4-00 " .
1-1. Press and the hold down the CD button , then press the STANDBY/ON button when the unit is Power On.
1-2. Press the VIDEO 3 button, while the " Test - _ " is shown.
Unit will be in the state of " Test-4-00 ".
2. Repeat and press SPEAKERS B to the " Test-4-32 " is shown.
3. Connect the road resistor 3 ohms to the speaker terminal.
4. Check that the " Protect " is not shown.
5. Connect the road resistor 1.5 ohms to the speaker terminal.
6. Check that the " Protect " is shown, and speaker relays are turn off.
7. Check about the FL, FR, C, SL, SR and SB channel one by one.
8. Press the STANDBY/ON to power Off. (Exit the test mode)
<Note1>
In test mode " Test 4-32 ", the pulse waveform is outputted from DSP IC on the pre-amplifier section, and it is inputted into
a power amplifier circuit. Refer to <Fig-1>.
Therefore an external input is unnecessary in check.
<Note2>
Don't connect speakers or any load.
Don't short speaker terminals.
Don't check two or more channels simultaneously.
Test - _
Test - 4-00
Test - 4-32
Protect
The output waveform from DSP IC in the test mode 4-32.
<Fig-1> Details of TEST MODE 4-32
TEST MODE
4-32
DSP
output ch.
ALL
DSP
output voltage
Max.
MASTER VOLUME = 54
2 ms 2 ms
20 ms
blinks
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TEL 13942296513 QQ 376315150 892498299
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OPERATION CHECK-3
OUTPUT LEVEL & THERMAL DETECTION
HT-R820THX
RL6901
D6904
D6903
RL6902
POWER AMP. PRI.
SEC1
Low
High
+B1
-B1 T901
MAIN TRANS.
Low
High
Q6303
THERMAL
SENSOR
R6380 THERMAL
DETECTION
OUTPUT
LEVEL
DETECTION
VOLH Q7008
MAIN
MICROPROCESSOR
Q6901
SEC1H
23
2
SPEAKER
OUT F6901
F6902
Low-voltage
Block diagram
HIGH
MODE
LOW
MODE
---> +/- 68.0 V
---> +/- 33.5 V
High-voltage
<Regarding the power supply system of this unit>
Function
1. High-voltage mode
Usually, the power supply supplies high voltage to the power amplifier circuit when the relay (RL6901) is turned On.
2. Low-voltage mode
When as follows, a power supply changes to the state of supplying low voltage when the relay (RL6901) is turned Off.
(1) Excessive output signal is continuously outputted from power amplifier.
(2) Temperature of a heat sink over 80 degrees.
Purpose
1. The loss which power amplifier generates is decreased. As a result, the miniaturization of a heat sink is realized.
2. Corresponds to a safety standard.
<Procedure>
<Note>
Don't connect speakers or any load.
Don't short speaker terminals.
(1) Set the unit is Multi channel input state.
(2) Set the master volume into the minimum.
(3) Apply sine wave signal to MULTI CHANNEL INPUT (FL+FR+C+SL) terminals.
(4) Connect an oscilloscope to speaker terminal of FL channel.
(5) Adjust master volume so that the wave form of speaker output may become distortion about 5%.
(6) Check that the RL6901 is turned off after about 5 seconds.
And the power supply changes to low-voltage mode.
(7) Adjust the master volume so that output voltage may become half.
(8) Check that the RL6901 is turned On after 2 to 3 minutes.
And the power supply returns to high-voltage mode.
Necessity of operation check
May not notice the fuse (F6901, F6902) broken in the case of repair.
Because the power supply is continuing supplying voltage from the High side of SEC1 at high-voltage mode.
When a power supply Circuit changes to low voltage mode, amplifier does not operate.
Therefore, it is very important to check operation of this power supply system containing a fuse.
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TEL 13942296513 QQ 376315150 892498299
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OPERATION CHECK-4
OUTPUT LEVEL & THERMAL DETECTION
HT-R820THX
P6301
COM
TH1
TH2
U16
NAAF-8245
POWER AMPLIFIER PC BOARD
Front side
1.8 kohms
1W
P6301
TH1
COM
TH2
Output level detection
1. Set the unit to test mode " Test-3-3 "
1-1. Press and the hold down the CD button , then press the STANDBY/ON button when the unit is Power On.
1-2. Press the VIDEO 2 button, while the " Test - _ " is shown.
Unit will be in the state of " Test-3-00 ".
1-3. Repeat and press SPEAKERS B button to the " Test-3-3 " is shown.
2. Apply signal (sine wave 1kHz, -1.5dBV) to MULTI CHANNEL (FL, FR, SL, SR, C) terminal, each channel.
3. Check that FM STEREO indicator is shown.
4. Press the STANDBY/ON button to power Off. (Exit from the test mode.)
Test - _
Test - 3-00
Test - 3-03
Test - 3-03FM STEREO FM STEREO
Thermal detection
1. Set the unit to test mode " Test-3-3 "
Refer to the clause of " Output level detection ".
2. Connect the resistor 1.8kohms /1W between " HT2 " and " COM " terminals of P6301.
3. Check that FM STEREO indicator is shown.
4. Press the STANDBY/ON button to power Off. (Exit the test mode.)
Test - 3-03
MEMORY MEMORY
<Operation check of microprocessor by test mode>
The following is the procedure of checking detection operation of a microprocessor in false, by using test mode.
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TEL 13942296513 QQ 376315150 892498299
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OPERATION CHECK-5
DSP DEBUG MODE
HT-R820THX
DSP Debug Mode
Ver. 075 (04809a)
E1A48K010o 23 o
<Ex.>
Details of display
1 42 5 6 97 103 8
<Regarding the DSP debug mode>
TIn this test mode, the check with normal communication of a microcomputer and the data of DSP and DIR is possible.
This information is a help to find the cause of failure.
UNLOCK
E = UNLOCK
= LOCK
1
Digital Selecter
D = DIGITAL
A = ANALOG
1 = COAX
2 = OPT1
3 = OPT2
4 = Others
2
Sampling Frequency
96 = 96kHz
48 = 48kHz
44 = 44kHz
32 = 32kHz
= Not detect
3
AUTOBOOT DSP AB CODE
0 = DTS NEO:6
1 = DD PCM
2 = DTS-ES
3 = AAC
4 = SIG
5 = COS
6 = DTS96/24
7 = PL2FS
6
Pre Emphasis
K = OFF
e = ON
4
AUTOBOOT DSP C CODE
0 = PL2X (Except DTS 96/24)
1 = DTS 96/24
2 = NEO6
3 = T-D
77
DSP Detect Format
[IEC61937]
00 = Null
01 = Dolby Digital
03 = Pause
04 = MPEG1 L1
05 = MPEG1 L23/MPEG2 w/o
06 = MPEG2 w/o
07 = MPEG2 AAC
0B = DTS1
0C = DTS2
0D = DTS3
1B = MPEG2 AAC1
1C = MPEG2 AAC2
[Except IEC61937]
20: Silent
21: DTS LD
22: DTS CD
23: PCM
9
DSP Decode
0 = Decode OK
X = Decode NG
- = Analog in
10
How to go in DSP debug mode?
1. Press and hold down the DISPLAY button, then press the STANDBY button when the unit is power On.
2. Press the DISPLAY button, while the "Version 02415A" is shown.
How to Exit
Press STANDBY/ON button to power Off.
<Explanation of each parameter>
DIR MEMORY/DOWNLOAD
DIR Status
0 = PCM/ANALOG
2 = DTS CD
5 = DD/DTS/AAC
5
DSP
8
AUTOBOOT Status
O = Autoboot is complete
X = Autoboot is going on
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
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EXPLODEDVIEWS-1
F903
F901
F6902
F6901
U18
U19
U01
U09
U14
U21
U07
P101
U12
U06
U26
T901 U20
U10
U16
P800
x 10
A003
A052
x6
A050
A001
A003
A003 A407
A060
A402
A409
A003
A003
A011
A054
A056
A003
A017
A015
A017
A003
A003 A003
P7503
P7502
A062
U05
U04
U03 U02
A025
A003
A003
A003
A003 A003
A037
A033
A003
P306B
70+/-5mm
U27
A003
A003
x 4
x 4
x 8
Refer to
"EXPLODED
VIEWS-2"
A705
U11
A402 A401
P901
A031
HT-R820THX
HT-R820THX
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x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
EXPLODEDVIEWS-2
POWERTRANSISTOR SECTION
HT-R820THX
HT-R820THX
Q6055
Q6065
Q6054
Q6053
Q6061
Q6052
Q6060
Q6050
Q6051
Q6062
Q6064
Q6063 Q6050A
x12
A039
x12
A034
L=300+/-5mm
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
BLOCK DIAGRAM
HT-R820THXHT-R820THX
L
R
L
R
Q
INPUT GAIN
0/6DB
INPUT GAIN
0/6dB
INPUT GAIN
0/6dB
OUTPUT GAIN
0-18dB
Q302(1/2)
-6dB
+4.5dB
Q302(1/2)
-6dB
+4.5dB
OUTPUT GAIN
0-18dB
OUTPUT GAIN
0-18dB
OUTPUT GAIN
0-18dB
OUTPUT GAIN
0-18dB
OUTPUT GAIN
0-18dB
INPUT GAIN
0/6dB
INPUT GAIN
0/6dB
INPUT GAIN
0/6dB
INPUT GAIN
0/6dB
Q305
15dB
VIDEO3
CD
TAPE IN
TAPE OUT
VIDEO-1 OUT
VIDEO-1 IN
VIDEO-2 IN
DVD SURR.
CENTER
BACK UP
STANDBY
D7507
RL6901
MASTER
VOLUME
0,,-103DB
50KLPF
SB +6dB
50KLPF
SW +6dB
50KLPF
C+6dB
50KLPF
SR +6dB
50KLPF
SL +6dB
50KLPF
R+6dB
50KLPF
L+6dB
SEC2
16M SDRAM
(520 ONLY)
Q7301
IC42S16100
Q702
MX29LV040
FLASH
MEMORY
FM/AM TUNER
UNIT
2CH A/D
96/24
DIR
MAIN MICRO
PROCESSOR
1
VIDEO SELECTOR
1
1
1
1
1
Q7008
MAIN MICROPROCESSOR
MPD784225GC
Q7502
SUB MICROPROCESSOR
MPD780232GC
Q701
CS494003CQ-Z
DSP
96/24
8CH D/A
OPTICAL 3
OPTICAL 2
OPTICAL 1
BASS/TREBLE
BASS/TREBLE
AC IN
SEC1
T902
U7501
REMOTE
SENSOR
SEC3
+B1L
+B1H
PHONES
VIDEO
VIDEO2 IN
VIDEO1 IN
DVD
12.5MHZ
5MHZ
12.288MHZ
VIDEO OUT
MONITOR OUT
VIDEO 1
OSC.
+5VDSP
Q7004
BA33C25
FL TUBE
FLAC
FLAC
SEC1 VOLTAGE
CONTROL
+B2
SEC1H
+B1
POWER
COAXIAL
VIDEO3
+27dB
+27dB
+27dB
+27dB
+27dB
+27dB
YC
S-VIDEO
MONITOR
OUT
YC
VIDEO 3
YC
VIDEO 2 IN
YC
S-VIDEO
VIDEO 1 IN
YC VIDEO 1
YC
DVD
L
R
FRONT SPEAKERS-A
FRONT SPEAKERS-B
SURROUND SPEAKER
CENTER SPEAKER
SURROUND BACK SPEAKER
-6dB
-6dB
11
12 3
4
7
79 78
868
93
81 80
94 70
9
10 53 54
64
11
12 55 56
13 65
14
57 58
95 66
96
48 49
15 61
SWPO
16
39
38
41
42
40
44
91
92
24
25 51 52
AMUT
63
27
28
43
26
30
SPF
SPCS
SPB
HPDET
SELMUT
SELDA
SELCL
RST.CS.INTREQ/CL/DA/SCDO
RST.CS/CL/DA/CDTO/INT1.2.
A17
A16
A15
ROM/RAM
CTLA/B
VMUT2
VMUT1
Q800
AK4588VQ
Q301
BD3817KS
SELECTOR
VOLUME
TONE CONTROL
0dB
LA7956
Q203
LA7956
Q213
LA7956
Q212
FL DISPLAY
Q7501
OPERATION KEY
0dB
0dB
6dB
6dB
6dB
POWER AMPLIFIER
DIGITAL IN
Q281
74HCU04
+2.5V
+3.3V
POWER SUPPLY
Q804
Q802
Q803
Q202
Q201
Q211
Q210
Q207
Q208
MUTE
MUTE
DSP
CB
CR
DVD IN
CY
CB
CR
VIDEO
1/2/3 IN
Y
CB
CR
Y
RL241
RL242 OUT
COMPONENT
VIDEO
+12VAF
Q321
78L07
+7V POWER SUPPLY
-12VAF
Q322
79L07
-7V
MUTING
MUTING
MUTING
Q312 Q313
Q306
Q307
Q308
SUBWOOFER
PREOUT
R6831
THERMAL
SENSOR
RL6800
RL6804
RL6801
RL6803
-B1
D921
-924
SUB
TRANSFORMER
RL901
P902
AC OUTLET
T901
MAIN
TRANSFORMER
POWER
AMP.
Q6406
78M05
+5VDSP
Q6402
78M12
Q6403
79M12
-12VAF
-12VAF
VIDEO
SECTION
PRE-AMPLIFIER
SECTION
DSP SECTION
-VP
+12V
Q9501
Q6931
NJM78M56A
Q6405
78M12
+5.6V
MICROPROCESSOR
SUB
MICROPROCESSOR
VOLTAGE
SENSOR
VOLH
PRO
D6703
DC VOLTAGE
DETECTOR &
OVER CURRENT
DETECTOR
Q6701~6703
D6704
R6830
THERMAL
SENSOR
BD3817KS,
OP AMP.
Q801
FRONT
SUB WOOFER
L
R
L
R
D6904D6903
RL6902
D9602
-9505
D9513
RI RI
INTERFACE
CPNT
PROTHERM
FOR SEC1
VOLTAGE CONTROL
A
1
2
3
4
5
BCDEFGH
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
BLOCK DIAGRAM
HT-R820THXHT-R820THX
L
R
L
R
Q
INPUT GAIN
0/6DB
INPUT GAIN
0/6dB
INPUT GAIN
0/6dB
OUTPUT GAIN
0-18dB
Q302(1/2)
-6dB
+4.5dB
Q302(1/2)
-6dB
+4.5dB
OUTPUT GAIN
0-18dB
OUTPUT GAIN
0-18dB
OUTPUT GAIN
0-18dB
OUTPUT GAIN
0-18dB
OUTPUT GAIN
0-18dB
INPUT GAIN
0/6dB
INPUT GAIN
0/6dB
INPUT GAIN
0/6dB
INPUT GAIN
0/6dB
Q305
15dB
VIDEO3
CD
TAPE IN
TAPE OUT
VIDEO-1 OUT
VIDEO-1 IN
VIDEO-2 IN
DVD SURR.
CENTER
BACK UP
STANDBY
D7507
RL6901
MASTER
VOLUME
0,,-103DB
50KLPF
SB +6dB
50KLPF
SW +6dB
50KLPF
C+6dB
50KLPF
SR +6dB
50KLPF
SL +6dB
50KLPF
R+6dB
50KLPF
L+6dB
SEC2
16M SDRAM
(520 ONLY)
Q7301
IC42S16100
Q702
MX29LV040
FLASH
MEMORY
FM/AM TUNER
UNIT
2CH A/D
96/24
DIR
MAIN MICRO
PROCESSOR
1
VIDEO SELECTOR
1
1
1
1
1
Q7008
MAIN MICROPROCESSOR
MPD784225GC
Q7502
SUB MICROPROCESSOR
MPD780232GC
Q701
CS494003CQ-Z
DSP
96/24
8CH D/A
OPTICAL 3
OPTICAL 2
OPTICAL 1
BASS/TREBLE
BASS/TREBLE
AC IN
SEC1
T902
U7501
REMOTE
SENSOR
SEC3
+B1L
+B1H
PHONES
VIDEO
VIDEO2 IN
VIDEO1 IN
DVD
12.5MHZ
5MHZ
12.288MHZ
VIDEO OUT
MONITOR OUT
VIDEO 1
OSC.
+5VDSP
Q7004
BA33C25
FL TUBE
FLAC
FLAC
SEC1 VOLTAGE
CONTROL
+B2
SEC1H
+B1
POWER
COAXIAL
VIDEO3
+27dB
+27dB
+27dB
+27dB
+27dB
+27dB
YC
S-VIDEO
MONITOR
OUT
YC
VIDEO 3
YC
VIDEO 2 IN
YC
S-VIDEO
VIDEO 1 IN
YC VIDEO 1
YC
DVD
L
R
FRONT SPEAKERS-A
FRONT SPEAKERS-B
SURROUND SPEAKER
CENTER SPEAKER
SURROUND BACK SPEAKER
-6dB
-6dB
11
12 3
4
7
79 78
868
93
81 80
94 70
9
10 53 54
64
11
12 55 56
13 65
14
57 58
95 66
96
48 49
15 61
SWPO
16
39
38
41
42
40
44
91
92
24
25 51 52
AMUT
63
27
28
43
26
30
SPF
SPCS
SPB
HPDET
SELMUT
SELDA
SELCL
RST.CS.INTREQ/CL/DA/SCDO
RST.CS/CL/DA/CDTO/INT1.2.
A17
A16
A15
ROM/RAM
CTLA/B
VMUT2
VMUT1
Q800
AK4588VQ
Q301
BD3817KS
SELECTOR
VOLUME
TONE CONTROL
0dB
LA7956
Q203
LA7956
Q213
LA7956
Q212
FL DISPLAY
Q7501
OPERATION KEY
0dB
0dB
6dB
6dB
6dB
POWER AMPLIFIER
DIGITAL IN
Q281
74HCU04
+2.5V
+3.3V
POWER SUPPLY
Q804
Q802
Q803
Q202
Q201
Q211
Q210
Q207
Q208
MUTE
MUTE
DSP
CB
CR
DVD IN
CY
CB
CR
VIDEO
1/2/3 IN
Y
CB
CR
Y
RL241
RL242 OUT
COMPONENT
VIDEO
+12VAF
Q321
78L07
+7V POWER SUPPLY
-12VAF
Q322
79L07
-7V
MUTING
MUTING
MUTING
Q312 Q313
Q306
Q307
Q308
SUBWOOFER
PREOUT
R6831
THERMAL
SENSOR
RL6800
RL6804
RL6801
RL6803
-B1
D921
-924
SUB
TRANSFORMER
RL901
P902
AC OUTLET
T901
MAIN
TRANSFORMER
POWER
AMP.
Q6406
78M05
+5VDSP
Q6402
78M12
Q6403
79M12
-12VAF
-12VAF
VIDEO
SECTION
PRE-AMPLIFIER
SECTION
DSP SECTION
-VP
+12V
Q9501
Q6931
NJM78M56A
Q6405
78M12
+5.6V
MICROPROCESSOR
SUB
MICROPROCESSOR
VOLTAGE
SENSOR
VOLH
PRO
D6703
DC VOLTAGE
DETECTOR &
OVER CURRENT
DETECTOR
Q6701~6703
D6704
R6830
THERMAL
SENSOR
BD3817KS,
OP AMP.
Q801
FRONT
SUB WOOFER
L
R
L
R
D6904D6903
RL6902
D9602
-9505
D9513
RI RI
INTERFACE
CPNT
PROTHERM
FOR SEC1
VOLTAGE CONTROL
A
1
2
3
4
5
BCDEFGH
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
SCHEMATIC DIAGRAMS-1
PRE-AMPLIFIER SECTION
HT-R820THX HT-R820THX
D9513 D2SB80A
Q7301
A021 A122
A1020 A1119
A223 A324
A4 27
A5 28
A6 29
A7 30
A8 31
A9 32
CKE 34
CLK 35
DQ02 DQ13
DQ10 42
DQ11 43
DQ12 45
DQ13 46
DQ14 48
DQ15 49
DQ25 DQ36
DQ48 DQ59
DQ611 DQ712
DQ8 39
DQ9 40
GND1 26
GND2 50
GNDQ14
GNDQ210
GNDQ3 41
GNDQ4 47
LDQM
14
NC1 33
NC2 37
UDQM 36
VCC01
VCC1
25
VCCQ17
VCCQ2
13
VCCQ3 38
VCCQ4 44
CAS16
CS
18 RAS
17
WE15
BD3817KS
Q301
1
AGND1067
AGND1177
AGND12 86
AGND13 90
AGND14 97
AGND15100
2
AGND323
AGND4
31
AGND535
AGND646
AGND7
50
AGND8 59
AGND9 62
AOUT1
32 AOUT2
33
BNFA1 74
BNFA2 72
BNFB1 73
BNFB2 71
CL 84
DATA 85
GOUTC 57
79
GOUTFR 81
51
53
GOUTSR55
GOUTSW48
3INA24INB15INB26INC17INC28IND19IND210
INDSPC40
INDSPCB43
INDSPFL39 INDSPFR38
INDSPSL42 INDSPSR41
INDSPSW44
INDVDC26
29
INDVDFL
25 INDVDFR24
28 INDVDSR27
30
INE111 INE212 INF113 INF214 ING115 ING2
16 INH117 INH2
18 INI1
19 INI220 INJ121 INJ222
MUTE 83
NC1
34
NC236 NC337
NC445
NC5
47
NC6 60
NC7 69
NC8 88
OUT1 98
OUT2 99
OUTC 66
OUTCB 63
OUTFL 68
OUTFR 70
OUTSL 64
OUTSR 65
OUTSW 61
ROUTA1 91
ROUTA2 92
ROUTB1 93
ROUTB2 94
ROUTC1 95
ROUTC2 96
THGND 82
TNF1 76
TNF2 75
VCC 89
VEE 87
VINC 58
52
78
80
VINSL 54
VINSR 56
VINSW
49
Q800
AK4588VQ
AVDD55 AVSS56
18
BICK2 15
2
CAD070
CAD172
CCLK/SCL 21
CDTI/SDA 22
20
COUT 11
CSN 23
DAUX1 24
DAUX275
DVDD 4
DVSS 5
DZF1 34
DZF2/OVF 33
I2C74
INT080
1
LIN51
LOUT147
43
LOUT3
39
LOUT4 35
19
LRCK216
MASTER 32
MCKO1 10
MCKO2 9
MCLK77
NC1 36
NC10
62 NC2 38
NC3 40
42
NC544
NC646
NC748
NC850
58
PDN 31
PVDD66
PVSS64 R65
RIN52
ROUT149
ROUT245
41
ROUT4 37
RX057
59
RX261
RX363
RX467
RX569
RX671
RX773 SDTI1 28
SDTI2 27
SDTI3 26
SDTI4 25
SDTO1 17
SDTO2 14
60
TEST268
TEST3 8
3
TX078 TX179
UOUT 12
VCOM53
VIN76
VOUT 13
VREFH54 XTI 7
XTL0 30
XTL1 29
XTO 6
Q181
CIN8
FLOUT7MODE10
MPXIN4
RDCL16
RDDA2RDS-ID/1 RST 15
TEST 9
VDDA5 VDDD12
VREF3
VSSA6 VSSD11
XIN 13
XOUT14
Q703
TC7WU04FU
GND4
1
63 72
5
VCC 8
RESET
UHS,_CSOUT,GPIO17
SCCLK
HINBSY,GPIO8
SCDOUT,SCDIO
A1,GPIO12
VDD5
VSS5
SCDIN
SCS
FSCLKN1,STCCLK2
VSS4
VDD4
FSDATAN1
A0.GPIO13
CS,GPIO9
CLKSEL
CLKIN,XTALI
XTALO
PLLVDD
FILT1
FILT2
PLLVSS
WR._DS,GPIO10
RD,_R/W,GPIO11
FLRCKN1
CMPDAT,FSDATAN2
CMPREQ,FLRCLKN2
HDATA0,GPIO0
HDATA1,GPIO1
VDD3
VSS3
HDATA2,GPIO2
CMPCLK,FSCLKN2
AUDATA0
AUDAUA1
VSS1
VDD1
LRCK1
SCLKN,GPIO22
LRCKN,GPIO23
SDATAN0,GPIO24
SDATAN1,GPIO25
SDATAN2,GPIO26
SDATAN3,GPIO27
SDCAS
SDRAS
NC1
NC2
NC3
NC4
SCLK0
HDATA4,GPIO4
AUDATA4,GPIO28
VSS2
VDD2
MCLK
SCLK1
HDATA5,GPIO5
HDATA6,GPIO6
HDATA7,GPIO7
AUDATA5,GPIO29
AUDATA6,GPIO30
AUDATA7,XMT958B,GPIO31
SD_DATA3,EXTD3
SD_DATA4,EXTD4
SD_DQM0
SD_DATA5,EXTD5
VSSSD4
VDDSD4
SD_DATA6,EXTD6
SD_DATA7,EXTD7
SD_DQM1
SD_DATA15,EXTA18
SD_DATA14,EXTA17
NC5
SD_DATA13,EXTA16
VSSSD3
VDDSD3
SD_DATA12<XETA15
SD_DATA11,XETA14
SD_DATA10,EXTA13
SD_DATA9,EXTA12
SD_DATA8,EXTA11
VSSSD2
VDDSD2
SD_CLK_OUT
SD_ADDR9,EXTA9
SD_ClL_IN
SD_ADDR8,EXTA8
SD_ADDR7,EXTA7
SD_CLK_EN
SD_ADDR6,EXTA6
SDCS
SD_ADDR5,EXTA5
SD_ADDR4,EXTA4
VSSSD1
VDDSD1
SD_BA,EXTA19
SD_ADDR10,
EXTA10
GPIO20
FA0,FSCCLK
FHS2,FSCDIO,FSCDOUT
GPIO21
FDAT7
VDD6
VSS6
FHS0,_FWR,_FDS
FHS1,_FRD,_FR/W
FDATA6
FCS
FINTREQ
FDBCK
FDAT4
FDAT5
VDD7
VSS7
FDAT3
FDBDA
FDAT2
DBDA
DBCK
FDAT1
TEST
FDAT0
NVWE,GPIO16
NVOE,GPIO15
NVCS,GPIO14
CS494003CQZ
Q701
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
MX29LV040
Q702
A020 A119
A1031 A11 1
A12 12
A13 4
A14 5
A15 11
A16 10
A17 6
A18/VPP 9
A218 A317 A4 16
A5 15
A6 14
A7 13
A8 3
A9 2
DQ021 DQ122 DQ223
DQ325 DQ426 DQ527 DQ628 DQ729
VCC 8
VSS
24
CE
30
OE
32
WE/A18 7
C7021
104Z
C7007
104Z
C7020
104Z
C7003 104Z
C721
104Z
C722
104Z
C811
104Z
C395
101J
C394
101J
C393
101J
C392
101J
C391
101J
C390
101J
C6411
223Z
C9512
223Z
C9511
223Z
C6403
223Z
C6405
223Z
C367
104Z
C6409
223Z
C818 NC
C817 330J
C800
330J
C808
104Z
C805
104Z
C814
330J
C104 101J
C106 101J
C7006
104Z
C7014
104Z
C781 104Z
C806
104Z
C815
104Z
C352
104Z
C365 222J
C351
330J
C350
221J
C182
NC
C183 C185
NC
C186
NC
C187
NC
C366
104Z
C7008
104Z
C7009
104Z
C325
104Z
C326
104Z
C322
104Z
C304C305 C303
101J
C312
101J
C313
101J
C314C315C316C317C318C319C320C321 C300C301C302
101J
C310C311
C328
330J
C327
330J
C323
104Z
C308
103Z
R7315
R6411
1.0 1/2W
R109
330
1/2W
R6403
33 1/2W
R6422
4.7
R6421
4.7
R7041
NC
R405 47K
R717220
R389
1.2K
R363
R397
R390
22K R381
22K
R375 1.2K
R379
22K
R380
22K
R374 1.2K
R396
R344
R373 1.2K
R331
1.2K
R377
22K
R6407
3.3 1W
R6408
R6405
R6406
R809 4.7
R811
330
R812
330
R814 330
R813 330
R355
10K
R356
10K
R806 1K
R800 56
R803 1K
R805 1K
R823 56
R822 56
R821 56
R824 1K
R846 NC
R847 NC
R848 1K
R829 1K
R827 NC
R808 1K
R7317
R7316
R7314
R7313
R7312
R7311
R7033
47K
R7080
*INIT3
R7079
*INIT2
R7078
*INIT1
R7180
*
R7178
*
R7179
*
R7004
R70051K
R7001 2.2K
R7002 2.2K
R7003
BAND
R102 22K
R103 22K
R7839 22K
R107NC
R104 100K
R7138
22K
R7042
NC
R7044
1K R7045
1K
R7048
220
R7046
1K
R7049
1K R7050
1K R7051
1K
R7047
220
R7053
220 R7052
1K
R7043
220
R7141
NC
R7021
2.2K
R7022 220
R7023 220
R7024 220
R7025 220
R7026 220
R7027 220
R7028 220
R7029 220
R7030 220
R7036 220
R7039 2.2K
R7040 220
R7038 2.2K
R7031 220
R7032 220
R7037 220
R7035 220
R7034 470
R7134 1K
R7067
220
R7068
220
R7069
220
R7070
220
R7072
220
R716 220
R718
220
R7318
R700
330
R701
3K
R703
3.3K
R705
10K
R707
10K
R709
3.3K
R702
3.3K
R708
3.3K
R711
3.3K
R7193.3K
R720
3.3K R721
3.3K
R712
10K
R722
10K
R723
3.3K R724
47 R725
47 R726
47
R727
47 R728
47 R729
47
R730 47
R731 47
R733 47
R736 47
R735 47
R734 47
R732 47
R750 3.3K
R737 47
R738 47
R739 47
R740 47
R741 47
R742 47
R744 47
R745 47
R743 47
R710
220
R704
220
R706
220
R751 220
R749 220
R748 220
R747 220
R746 220
R714 3.3K
R713 3.3K
R715 3.3K
R763
22
R762
22
R781 1M
R401 47K
R404 47K
R403 47K
R402 47K
R410 470K R409 470K
R807
56
R849
R816 56
R828
2.2K
R804 56
R802 56
R801 56
R819 56
R820 560
R818
330
R817
56
R810
12K
R855 100K
R854 100K
R853
15K
R852
15K
R826
56
R825
56
R7081 220
R7082 220
R7084 220 R7085 220
R7083 220
R384
220K
R382 22K R378
22K
R330
1.2K
R376
270 R388
100 R385
100
R383
10K
R370
3.9K
R369
1.8K
R367
1K
R368
47K
R350
220K
R349
220K
R6402
10 1/2W
R181
NC
R345
47K
R346
47K
R357
000J
R358
000J
R832
2.2K
R833
4.7K
R835
2.2K
R834
4.7K
R831
2.2K
R836
2.2K
R837
4.7K
R839
2.2K
R838
4.7K
R840
2.2K
R841
4.7K
R843
2.2K
R842
4.7K
R845
4.7K
R844
2.2K
R877
4.7K R874
4.7K
R873
4.7K R862
4.7K
R865
4.7K
R866
4.7K
R870
4.7K
R884
2.2K
R869
4.7K
R879
2.2K
R880
2.2K
R883
2.2K
R887
2.2K
R888
2.2K
R891
2.2K
R892
2.2K
R7014 82
R354
4.7K
R353
4.7K
R7015 82
R7016 82
R7008 220
R7009 220
R7062 1K
R7063 1K
R7061
220K
R7010 220
R7012 NC
R352
000J
R351 000J
R309
000J
R308
000J
R302
330
R7011 NC
R7017 82
R7018 82
R7019 220
R7020 220
R7064 1K
R7065 1K
R7076
1K
R7066 1K
R7071
4.7K
R7120
1K
R7060
47K
R326
47K
R305
330
R328
47K
R329
47K R327
47K
R325
470K
R303
330
R334
470K
R335
470K
R313
330
R336
47K
R337
47K
R315
330
R338
47K
R317
330
R340
47K
R341
47K
R319
330
R342
47K
R343
47K
R321
330
R339
47K
R322
47K
R323
47K
R301
330
R324
470K
R7077
1K
R332
47K
R311
330
R333
47K
R362
10K
R361
10K
R320
330
R318
330
R316
330
R312
330
R314
330
R310
330
R307
NC
R306
NC
R300
330
R304
330
R347
10K
R386
1.5K
R387
1.5K
R348
10K
R360
390
R359
390
Q305
OR MPC4570
NJM4565M
58
67
Q804
NJM4565M-D
5
8
6
7
Q802
NJM4565M-D
5
8
6
7
Q801
NJM4565M-D
5
8
6
7
Q803
NJM4565M-D
5
8
6
7
Q302
OR MPC4570
NJM4565M-D
5
8
6
7
Q305
OR MPC4570
NJM4565M
3
2
41
Q801
NJM4565M-D
3
2
4
1
Q802
NJM4565M-D
3
2
4
1
Q803
NJM4565M-D
3
2
4
1
Q804
NJM4565M-D
3
2
4
1
Q302
OR MPC4570G2
NJM4565M-D
3
2
4
1
C109
C380
C357
C356
C355
C354
47/16
C9510
220/63
C9505
2200/35
C9506
470/35
C6404
10/16
C6406
10/16
C362
10/16
C6412
10/16
C6410
10/16
C9508
4700/16
C9507
220/35
C809
330/6.3
C804
2.2/50
C7005
100/6.3
C7001
104F
C7002
100/6.3
C101
3.3/50
C103 3.3/50
C7004
1/50
C7011
47/16
C7012
47/16
C7015
47/16
C701 47/16
C704
2.2M
TANTAL
C703
47/16
C713
1/50
C751
C807
100/6.3
C813 330/6.3
C816
100/6.3
C846
10/16
C847
10/16
C7307
NC
C35347/16
C358
47/16
C349
10/16
C184
NC
C181
NC
C359
10/16
C341
100/16
C342
100/16
C854
10/16
C853
10/16
C852
10/16
C851
10/16
C850
10/16
C856
10/16
C855
10/16
C844
220/16 C843
220/16
C346
10/16
C345
10/16
C347
10/16
C348
10/16
C363
10/16
C364
10/16
C368
10/16
C374
10/16
C373
10/16
D7003
D9506
D9502D9504
D9503
D9502-9505: RL1N4003
D9505
D9507
D7002
1SS352
D7001
D7004
1SS352
D802 D806
D801 D805
C7010
104Z
C706
680J
C702
104Z
C708
104Z
C707
104Z
C715
104Z
C714
104Z
C712
104Z
C711
104Z
C710
104Z
C709
104Z
C719 104Z
C718 104Z
C716
104Z
C705 122J
C717
104Z
C720
101J
C752 104Z
C7305
NC
C7306
NC
C7304
NC
C7303
NC
C7302
NC
C7301
NC
C361
224K
C360
474K
C379
224K
C378
224K
C377
474K C375
474K
C343 104Z
C344 104Z
C381 104J
C376 104J
C372104J
C371104J
C369 472J
C370 472J
Q310
Q309
Q314
Q311
Q308
RN1441
Q316
Q313
RN1441
Q307
RN1441
Q312
RN1441
Q318
Q319
Q317
Q306
OR KRA102S
RN2402
Q323
OR KRA102S
RN2402
Q320
OR KRA102S
RN2402
P351
C9513
104J
C9514
104J
C9502104J
C9515 104
C9516 104
C6421
104J
C6401
104J
C9503
104J
C9501
104J
C826
821J
C825
821J C824
821J C823
822J
C822
821J
C821
821J
C820
821J
C830
101J C829
122J
C832
101J
C831
122J
C833
122J
C834
101J
C835
101J
C836
123J
C838
101J
C837
122J
C840
101J
C839
122J
C842
101J
C841
122J
Q7002
TC74VHC541FT
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
GND10
VCC20
Y118 Y217 Y316 Y415 Y514 Y613 Y712 Y8
11
G1 1
G2
19
X181
L7302
LL241
L703
220M
L7302
L701 022M
L7001
470K NCH-1479
L7002
022M
NCH-1471
L702
022M
L751
022M
L783
220K
L781
LM182
L782
LM182
L803
022M
L800
022M
L801
022M
L802
LM182
L7301
NC
L181
NC
X7001
CSTCV12.5MXJ
X781
CSTCV12.2MTJ0C4
P7701 TO RS232C
R9507
15K
R9509 100K
R9506
22(1/2W)
R9508
15K
R7000
100
R18647K
R18547K
R18747K
R184
NC
R182 NC
R183
NC
Q6408
Q7007
KRC104S
OR RN1404
Q7006
KRC104S
OR RN1404
Q7001
KRC104S
RN1404
D109
UDZS5.1B
D9508
UDZS27D
D7702
UDZS6.2B
Q7008
MPD784225GC-267-8BT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
P101
TO TUNER UNIT
P801
P412BFLASH
TC74HCT7007AF
Q7003
1
2
3
4
5
6
78
9
10
11
12
13
14
P301
CD
TAPE-1 IN
TAPE-1 OUT
P305
FRONT
SURR
CENTER
P304
VIDEO-1 OUT
VIDEO-1 IN
VIDEO-2 IN
P261A
Q322 79L07
GIO
Q321 78L07
GIO
P411B
TO NAETC-8238
P7502B
TO NADIS-8231
P6403
Q6403 79M12
GI
O
Q6402 78M12
GIO
Q6405 78M12
GI
O
Q6406 7805
GI
O
Q6407
Q9501
2SA1015-GR
KTA1266-GR
P406
P410B
TO NAETC-8238
P306
Q7004 BA33C25FP
2.5V 5
3.3V 4G
3NC
2
VI
1
+22V
SEC1-1
+22V
+7V +12VA
DMIXR
DMIXL SEC1-2
CDR SELDA -VP
SEC3-1
SELCK
SELMUT -7V -12VA -22V SEC3-2
TOL
STEREO
SD
TMUT
TUR
GND
TUL
RDSDET
+12VA
FMSIG
GND
PLLCL
PLLDA
PLLSTB
TX
RX1
+5VDSP
RX2
RX3
VMUT1
VMUT2
CTLB
CTLA
RI
CNPT
GND
+12VVD
V1OL
V1OR
TOL
TOR
CDL 5.6S
TOR PROTHERM
+12VVD
TUR
TUL CTLB
V4R CTLA
TIR V4L POWER
POWER
CDR +5VDSP
VMUT1
VMUT2
SPF SPF
CDL SPCS SPCS
TIR SEC1H SEC1H
TMUT
PLLCL
PLLDA
PLLSTB
AMUT
PLLDI
TIL TIL
STEREO
SD
SPB SPB
V3IR OUT_R CNPT VOLH
V3IR V3IL
PROTECT
V2IR OUT_L HPIN GND
V2IL
V1IR OUT_C
RI
+13V
V3IL V1IL OUT_RS
AMUT
HPIN
OUT_LS OUT_L
MCRDY
OUR_LB T1RECMUT HPMUT
MCSDA
V1RECMUT MCRST
MCMDA
OUT_SW SELMUT MCCLK
MCCLK
DVDR SELCK MCMDA
MCRST
DVDL SELDA MCSDA
HPMUT
OUT_R LPO CODECPD MCRDY
-VP
V2IR GND CODECCS
OUT_RS RPO FCS
MC MCRDY
DRES 232TXD
MRS RSPO IC
V1OR
V1OL
232RXD
V2IL MLS GND FVCC
DSPCLK
LSPO MPURST
DSPDA
MSW MCCLK
DSI
OUT_LS CPO MCMDA
MCSDA
OUT_C SBO GND
ADCR+ PROTHERM
DAC_R
DAC_L
DAC_C
DAC_RS
DAC_LS
DAC_SBL
DAC_SW
ADCL+
V1IR VOLH
PROTECT
DSPCLK
DSPDA
FCS
DRES
V1IL
DVDR
SWPO
IC
DVDL DAC_L
DMIXR
DMIXL
+5VDSP
MRS RDSSCK
AMUT
RDSSIG
MLS
INT1
INT0
FINT
INTDSP
RDSDATA
CODECPD
CODECCS
DSPCLK_33
DSPDA_33
3VFCS
3VDRES
3VSCS
+12VA
MSW T1RECMUT
V1RECMUT
MC
RDSSIG
DAC_R
RDSDATA
DAC_SW
+2.5
+3.3V
RDSDET
SDCLK
A9
DSI
ADCL+
ADCR+
3VINT
A10
SDCS
A4
A5
A6
A7
A8
A11
A12
A13
A14
A15
A16
A17
A18
UDQM
D7
D6
D5
LDQM
D4
D3
SDBA
INTDSP
CS_SDVDD
CKE
3VDSI
A3 A4
A2 A5
A1 A6
A0 A7
D0 A12 A0 D2
A18
D1 A15 A1 D1
D2 A16 A2 D0
A3 SDWE
D3 RAS CS
CODECPD
D4 CAS OE
CODECCS
DSPDA_33
DSPCLK_33
D5 A17 WE
+12VA D6 A14
DACDA4
+5VDSP
D7 A13
DACDA3 CS A8
SAI_SDOUT
DACDA2 INT1
A10 A9
-12VA DACDA1 FINT
OE A11
DAC_LS
DAC_RS
DAC_SBL
3VINT1
WE
DIRLRCK
3VINT0
DIRBCK
INT0
3VFINT
3VDSI
3VINT1
3VINT0
3VFINT
DALRCK
DACBCK
ADSDO 3VFCS
DIRLRCK
DIRBCK
SAI_SDOUT D0 A18
D1 A17
3VINT
DIRMCKO D2 A16
D3 A15
+3.3V
D4 A14
OMCK
DAC_SW D5 A13
DACBCK
+5VDSP D6 A12
DACDA4 D7 A11
DACDA3
DALRCK
LDQM
3VINT1
DAC_C DSPXTI SDWE
UDQM
CAS
SDCLK
3VINT0
DIRBCK
DIRLRCK
RAS CKE
SDCS
+5VDSP
SDBA A9
A10 A8
A0 A7
DAC_R A1 A6
A2 A5
CS_VDD A3 A4
DSPCLK_33
DIRLRCK DSPDA_33
DIRBCK 3VDSI
DAC_L 3VDRES
DSPXTI
3VSCS
RX1
RX2
RX3
TX
SAI_SDOUT
TX
RX1
RX2
RX3
Refer to the following table about the parts displyed by mark " "
DESCRIPTION
R7003 000J
R7078 000J
R7079 10K
R7080 4.7K
R7178 NO
R7179 33K
R7180 33K
U01
TO NAETC-8234
L
R
L
R
SUBWOOFER
PREOUT
TO NAAF-8235
NC
NC
NC
NC
NC
TO NAETC-8243
DVD
SUBWOOFER
P302
NC
REF. NO.
NC
101K101K
NC
NC
NC
101J
101J
101J
101J
NC
101J
101J
101J
101J 101J101J 101J101J
NC
NC
NC
NC
NC
NC
PRE-AMPLIFIER PC BOARD
<Notes>
NC=No mount of parts.
NADG-8230
104
UHS0.GPIO18
UHS1,GPIO19
INTREQ
FA1,FSCDIN
1
2
3
4
AUDATA2
HDATA3,GPIO3
LRCK0
AUDATA3,XMT958A
105
106
107
108
SDADDR3,EXTA3
SD_ADDR2,EXTA2
SD_ADDR1,EXTA1
SD_ADDR1,EXTA173
74
75
76 SDWE
SD_DATA0,EXTD0
SD_DATA1,EXTD1
SD_DATA2,EXTD2
33
34
35
36
NC
AGND11 AGND22 INA13GOUTFL 79
VINFL 78
VINFR 80
GOUTSB 51
GOUTSL 53
VINCB 52
INDVDCB29 INDVDSL28
INDVDSW
30
LOUT243 NC4
42
ROUT3
41
BICK1 18
CDTO 20
LRCK1 19
BOUT 2
INT1 1
TVDD 3
58
59
60
NC9
RX1
TEST1
NC
NC
A
1
2
3
4
5
BCDEFGH
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
SCHEMATIC DIAGRAMS-1
PRE-AMPLIFIER SECTION
HT-R820THX HT-R820THX
D9513 D2SB80A
Q7301
A021 A122
A1020 A1119
A223 A324
A4 27
A5 28
A6 29
A7 30
A8 31
A9 32
CKE 34
CLK 35
DQ02 DQ13
DQ10 42
DQ11 43
DQ12 45
DQ13 46
DQ14 48
DQ15 49
DQ25 DQ36
DQ48 DQ59
DQ611 DQ712
DQ8 39
DQ9 40
GND1 26
GND2 50
GNDQ14
GNDQ210
GNDQ3 41
GNDQ4 47
LDQM
14
NC1 33
NC2 37
UDQM 36
VCC01
VCC1
25
VCCQ17
VCCQ2
13
VCCQ3 38
VCCQ4 44
CAS16
CS
18 RAS
17
WE15
BD3817KS
Q301
1
AGND1067
AGND1177
AGND12 86
AGND13 90
AGND14 97
AGND15100
2
AGND323
AGND4
31
AGND535
AGND646
AGND7
50
AGND8 59
AGND9 62
AOUT1
32 AOUT2
33
BNFA1 74
BNFA2 72
BNFB1 73
BNFB2 71
CL 84
DATA 85
GOUTC 57
79
GOUTFR 81
51
53
GOUTSR55
GOUTSW48
3INA24INB15INB26INC17INC28IND19IND210
INDSPC40
INDSPCB43
INDSPFL39 INDSPFR38
INDSPSL42 INDSPSR41
INDSPSW44
INDVDC26
29
INDVDFL
25 INDVDFR24
28 INDVDSR27
30
INE111 INE212 INF113 INF214 ING115 ING2
16 INH117 INH2
18 INI1
19 INI220 INJ121 INJ222
MUTE 83
NC1
34
NC236 NC337
NC445
NC5
47
NC6 60
NC7 69
NC8 88
OUT1 98
OUT2 99
OUTC 66
OUTCB 63
OUTFL 68
OUTFR 70
OUTSL 64
OUTSR 65
OUTSW 61
ROUTA1 91
ROUTA2 92
ROUTB1 93
ROUTB2 94
ROUTC1 95
ROUTC2 96
THGND 82
TNF1 76
TNF2 75
VCC 89
VEE 87
VINC 58
52
78
80
VINSL 54
VINSR 56
VINSW
49
Q800
AK4588VQ
AVDD55 AVSS56
18
BICK2 15
2
CAD070
CAD172
CCLK/SCL 21
CDTI/SDA 22
20
COUT 11
CSN 23
DAUX1 24
DAUX275
DVDD 4
DVSS 5
DZF1 34
DZF2/OVF 33
I2C74
INT080
1
LIN51
LOUT147
43
LOUT3
39
LOUT4 35
19
LRCK216
MASTER 32
MCKO1 10
MCKO2 9
MCLK77
NC1 36
NC10
62 NC2 38
NC3 40
42
NC544
NC646
NC748
NC850
58
PDN 31
PVDD66
PVSS64 R65
RIN52
ROUT149
ROUT245
41
ROUT4 37
RX057
59
RX261
RX363
RX467
RX569
RX671
RX773 SDTI1 28
SDTI2 27
SDTI3 26
SDTI4 25
SDTO1 17
SDTO2 14
60
TEST268
TEST3 8
3
TX078 TX179
UOUT 12
VCOM53
VIN76
VOUT 13
VREFH54 XTI 7
XTL0 30
XTL1 29
XTO 6
Q181
CIN8
FLOUT7MODE10
MPXIN4
RDCL16
RDDA2RDS-ID/1 RST 15
TEST 9
VDDA5 VDDD12
VREF3
VSSA6 VSSD11
XIN 13
XOUT14
Q703
TC7WU04FU
GND4
1
63 72
5
VCC 8
RESET
UHS,_CSOUT,GPIO17
SCCLK
HINBSY,GPIO8
SCDOUT,SCDIO
A1,GPIO12
VDD5
VSS5
SCDIN
SCS
FSCLKN1,STCCLK2
VSS4
VDD4
FSDATAN1
A0.GPIO13
CS,GPIO9
CLKSEL
CLKIN,XTALI
XTALO
PLLVDD
FILT1
FILT2
PLLVSS
WR._DS,GPIO10
RD,_R/W,GPIO11
FLRCKN1
CMPDAT,FSDATAN2
CMPREQ,FLRCLKN2
HDATA0,GPIO0
HDATA1,GPIO1
VDD3
VSS3
HDATA2,GPIO2
CMPCLK,FSCLKN2
AUDATA0
AUDAUA1
VSS1
VDD1
LRCK1
SCLKN,GPIO22
LRCKN,GPIO23
SDATAN0,GPIO24
SDATAN1,GPIO25
SDATAN2,GPIO26
SDATAN3,GPIO27
SDCAS
SDRAS
NC1
NC2
NC3
NC4
SCLK0
HDATA4,GPIO4
AUDATA4,GPIO28
VSS2
VDD2
MCLK
SCLK1
HDATA5,GPIO5
HDATA6,GPIO6
HDATA7,GPIO7
AUDATA5,GPIO29
AUDATA6,GPIO30
AUDATA7,XMT958B,GPIO31
SD_DATA3,EXTD3
SD_DATA4,EXTD4
SD_DQM0
SD_DATA5,EXTD5
VSSSD4
VDDSD4
SD_DATA6,EXTD6
SD_DATA7,EXTD7
SD_DQM1
SD_DATA15,EXTA18
SD_DATA14,EXTA17
NC5
SD_DATA13,EXTA16
VSSSD3
VDDSD3
SD_DATA12<XETA15
SD_DATA11,XETA14
SD_DATA10,EXTA13
SD_DATA9,EXTA12
SD_DATA8,EXTA11
VSSSD2
VDDSD2
SD_CLK_OUT
SD_ADDR9,EXTA9
SD_ClL_IN
SD_ADDR8,EXTA8
SD_ADDR7,EXTA7
SD_CLK_EN
SD_ADDR6,EXTA6
SDCS
SD_ADDR5,EXTA5
SD_ADDR4,EXTA4
VSSSD1
VDDSD1
SD_BA,EXTA19
SD_ADDR10,
EXTA10
GPIO20
FA0,FSCCLK
FHS2,FSCDIO,FSCDOUT
GPIO21
FDAT7
VDD6
VSS6
FHS0,_FWR,_FDS
FHS1,_FRD,_FR/W
FDATA6
FCS
FINTREQ
FDBCK
FDAT4
FDAT5
VDD7
VSS7
FDAT3
FDBDA
FDAT2
DBDA
DBCK
FDAT1
TEST
FDAT0
NVWE,GPIO16
NVOE,GPIO15
NVCS,GPIO14
CS494003CQZ
Q701
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
MX29LV040
Q702
A020 A119
A1031 A11 1
A12 12
A13 4
A14 5
A15 11
A16 10
A17 6
A18/VPP 9
A218 A317 A4 16
A5 15
A6 14
A7 13
A8 3
A9 2
DQ021 DQ122 DQ223
DQ325 DQ426 DQ527 DQ628 DQ729
VCC 8
VSS
24
CE
30
OE
32
WE/A18 7
C7021
104Z
C7007
104Z
C7020
104Z
C7003 104Z
C721
104Z
C722
104Z
C811
104Z
C395
101J
C394
101J
C393
101J
C392
101J
C391
101J
C390
101J
C6411
223Z
C9512
223Z
C9511
223Z
C6403
223Z
C6405
223Z
C367
104Z
C6409
223Z
C818 NC
C817 330J
C800
330J
C808
104Z
C805
104Z
C814
330J
C104 101J
C106 101J
C7006
104Z
C7014
104Z
C781 104Z
C806
104Z
C815
104Z
C352
104Z
C365 222J
C351
330J
C350
221J
C182
NC
C183 C185
NC
C186
NC
C187
NC
C366
104Z
C7008
104Z
C7009
104Z
C325
104Z
C326
104Z
C322
104Z
C304C305 C303
101J
C312
101J
C313
101J
C314C315C316C317C318C319C320C321 C300C301C302
101J
C310C311
C328
330J
C327
330J
C323
104Z
C308
103Z
R7315
R6411
1.0 1/2W
R109
330
1/2W
R6403
33 1/2W
R6422
4.7
R6421
4.7
R7041
NC
R405 47K
R717220
R389
1.2K
R363
R397
R390
22K R381
22K
R375 1.2K
R379
22K
R380
22K
R374 1.2K
R396
R344
R373 1.2K
R331
1.2K
R377
22K
R6407
3.3 1W
R6408
R6405
R6406
R809 4.7
R811
330
R812
330
R814 330
R813 330
R355
10K
R356
10K
R806 1K
R800 56
R803 1K
R805 1K
R823 56
R822 56
R821 56
R824 1K
R846 NC
R847 NC
R848 1K
R829 1K
R827 NC
R808 1K
R7317
R7316
R7314
R7313
R7312
R7311
R7033
47K
R7080
*INIT3
R7079
*INIT2
R7078
*INIT1
R7180
*
R7178
*
R7179
*
R7004
R70051K
R7001 2.2K
R7002 2.2K
R7003
BAND
R102 22K
R103 22K
R7839 22K
R107NC
R104 100K
R7138
22K
R7042
NC
R7044
1K R7045
1K
R7048
220
R7046
1K
R7049
1K R7050
1K R7051
1K
R7047
220
R7053
220 R7052
1K
R7043
220
R7141
NC
R7021
2.2K
R7022 220
R7023 220
R7024 220
R7025 220
R7026 220
R7027 220
R7028 220
R7029 220
R7030 220
R7036 220
R7039 2.2K
R7040 220
R7038 2.2K
R7031 220
R7032 220
R7037 220
R7035 220
R7034 470
R7134 1K
R7067
220
R7068
220
R7069
220
R7070
220
R7072
220
R716 220
R718
220
R7318
R700
330
R701
3K
R703
3.3K
R705
10K
R707
10K
R709
3.3K
R702
3.3K
R708
3.3K
R711
3.3K
R7193.3K
R720
3.3K R721
3.3K
R712
10K
R722
10K
R723
3.3K R724
47 R725
47 R726
47
R727
47 R728
47 R729
47
R730 47
R731 47
R733 47
R736 47
R735 47
R734 47
R732 47
R750 3.3K
R737 47
R738 47
R739 47
R740 47
R741 47
R742 47
R744 47
R745 47
R743 47
R710
220
R704
220
R706
220
R751 220
R749 220
R748 220
R747 220
R746 220
R714 3.3K
R713 3.3K
R715 3.3K
R763
22
R762
22
R781 1M
R401 47K
R404 47K
R403 47K
R402 47K
R410 470K R409 470K
R807
56
R849
R816 56
R828
2.2K
R804 56
R802 56
R801 56
R819 56
R820 560
R818
330
R817
56
R810
12K
R855 100K
R854 100K
R853
15K
R852
15K
R826
56
R825
56
R7081 220
R7082 220
R7084 220 R7085 220
R7083 220
R384
220K
R382 22K R378
22K
R330
1.2K
R376
270 R388
100 R385
100
R383
10K
R370
3.9K
R369
1.8K
R367
1K
R368
47K
R350
220K
R349
220K
R6402
10 1/2W
R181
NC
R345
47K
R346
47K
R357
000J
R358
000J
R832
2.2K
R833
4.7K
R835
2.2K
R834
4.7K
R831
2.2K
R836
2.2K
R837
4.7K
R839
2.2K
R838
4.7K
R840
2.2K
R841
4.7K
R843
2.2K
R842
4.7K
R845
4.7K
R844
2.2K
R877
4.7K R874
4.7K
R873
4.7K R862
4.7K
R865
4.7K
R866
4.7K
R870
4.7K
R884
2.2K
R869
4.7K
R879
2.2K
R880
2.2K
R883
2.2K
R887
2.2K
R888
2.2K
R891
2.2K
R892
2.2K
R7014 82
R354
4.7K
R353
4.7K
R7015 82
R7016 82
R7008 220
R7009 220
R7062 1K
R7063 1K
R7061
220K
R7010 220
R7012 NC
R352
000J
R351 000J
R309
000J
R308
000J
R302
330
R7011 NC
R7017 82
R7018 82
R7019 220
R7020 220
R7064 1K
R7065 1K
R7076
1K
R7066 1K
R7071
4.7K
R7120
1K
R7060
47K
R326
47K
R305
330
R328
47K
R329
47K R327
47K
R325
470K
R303
330
R334
470K
R335
470K
R313
330
R336
47K
R337
47K
R315
330
R338
47K
R317
330
R340
47K
R341
47K
R319
330
R342
47K
R343
47K
R321
330
R339
47K
R322
47K
R323
47K
R301
330
R324
470K
R7077
1K
R332
47K
R311
330
R333
47K
R362
10K
R361
10K
R320
330
R318
330
R316
330
R312
330
R314
330
R310
330
R307
NC
R306
NC
R300
330
R304
330
R347
10K
R386
1.5K
R387
1.5K
R348
10K
R360
390
R359
390
Q305
OR MPC4570
NJM4565M
58
67
Q804
NJM4565M-D
5
8
6
7
Q802
NJM4565M-D
5
8
6
7
Q801
NJM4565M-D
5
8
6
7
Q803
NJM4565M-D
5
8
6
7
Q302
OR MPC4570
NJM4565M-D
5
8
6
7
Q305
OR MPC4570
NJM4565M
3
2
41
Q801
NJM4565M-D
3
2
4
1
Q802
NJM4565M-D
3
2
4
1
Q803
NJM4565M-D
3
2
4
1
Q804
NJM4565M-D
3
2
4
1
Q302
OR MPC4570G2
NJM4565M-D
3
2
4
1
C109
C380
C357
C356
C355
C354
47/16
C9510
220/63
C9505
2200/35
C9506
470/35
C6404
10/16
C6406
10/16
C362
10/16
C6412
10/16
C6410
10/16
C9508
4700/16
C9507
220/35
C809
330/6.3
C804
2.2/50
C7005
100/6.3
C7001
104F
C7002
100/6.3
C101
3.3/50
C103 3.3/50
C7004
1/50
C7011
47/16
C7012
47/16
C7015
47/16
C701 47/16
C704
2.2M
TANTAL
C703
47/16
C713
1/50
C751
C807
100/6.3
C813 330/6.3
C816
100/6.3
C846
10/16
C847
10/16
C7307
NC
C35347/16
C358
47/16
C349
10/16
C184
NC
C181
NC
C359
10/16
C341
100/16
C342
100/16
C854
10/16
C853
10/16
C852
10/16
C851
10/16
C850
10/16
C856
10/16
C855
10/16
C844
220/16 C843
220/16
C346
10/16
C345
10/16
C347
10/16
C348
10/16
C363
10/16
C364
10/16
C368
10/16
C374
10/16
C373
10/16
D7003
D9506
D9502D9504
D9503
D9502-9505: RL1N4003
D9505
D9507
D7002
1SS352
D7001
D7004
1SS352
D802 D806
D801 D805
C7010
104Z
C706
680J
C702
104Z
C708
104Z
C707
104Z
C715
104Z
C714
104Z
C712
104Z
C711
104Z
C710
104Z
C709
104Z
C719 104Z
C718 104Z
C716
104Z
C705 122J
C717
104Z
C720
101J
C752 104Z
C7305
NC
C7306
NC
C7304
NC
C7303
NC
C7302
NC
C7301
NC
C361
224K
C360
474K
C379
224K
C378
224K
C377
474K C375
474K
C343 104Z
C344 104Z
C381 104J
C376 104J
C372104J
C371104J
C369 472J
C370 472J
Q310
Q309
Q314
Q311
Q308
RN1441
Q316
Q313
RN1441
Q307
RN1441
Q312
RN1441
Q318
Q319
Q317
Q306
OR KRA102S
RN2402
Q323
OR KRA102S
RN2402
Q320
OR KRA102S
RN2402
P351
C9513
104J
C9514
104J
C9502104J
C9515 104
C9516 104
C6421
104J
C6401
104J
C9503
104J
C9501
104J
C826
821J
C825
821J C824
821J C823
822J
C822
821J
C821
821J
C820
821J
C830
101J C829
122J
C832
101J
C831
122J
C833
122J
C834
101J
C835
101J
C836
123J
C838
101J
C837
122J
C840
101J
C839
122J
C842
101J
C841
122J
Q7002
TC74VHC541FT
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
GND10
VCC20
Y118 Y217 Y316 Y415 Y514 Y613 Y712 Y8
11
G1 1
G2
19
X181
L7302
LL241
L703
220M
L7302
L701 022M
L7001
470K NCH-1479
L7002
022M
NCH-1471
L702
022M
L751
022M
L783
220K
L781
LM182
L782
LM182
L803
022M
L800
022M
L801
022M
L802
LM182
L7301
NC
L181
NC
X7001
CSTCV12.5MXJ
X781
CSTCV12.2MTJ0C4
P7701 TO RS232C
R9507
15K
R9509 100K
R9506
22(1/2W)
R9508
15K
R7000
100
R18647K
R18547K
R18747K
R184
NC
R182 NC
R183
NC
Q6408
Q7007
KRC104S
OR RN1404
Q7006
KRC104S
OR RN1404
Q7001
KRC104S
RN1404
D109
UDZS5.1B
D9508
UDZS27D
D7702
UDZS6.2B
Q7008
MPD784225GC-267-8BT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
P101
TO TUNER UNIT
P801
P412BFLASH
TC74HCT7007AF
Q7003
1
2
3
4
5
6
78
9
10
11
12
13
14
P301
CD
TAPE-1 IN
TAPE-1 OUT
P305
FRONT
SURR
CENTER
P304
VIDEO-1 OUT
VIDEO-1 IN
VIDEO-2 IN
P261A
Q322 79L07
GIO
Q321 78L07
GIO
P411B
TO NAETC-8238
P7502B
TO NADIS-8231
P6403
Q6403 79M12
GI
O
Q6402 78M12
GIO
Q6405 78M12
GI
O
Q6406 7805
GI
O
Q6407
Q9501
2SA1015-GR
KTA1266-GR
P406
P410B
TO NAETC-8238
P306
Q7004 BA33C25FP
2.5V 5
3.3V 4G
3NC
2
VI
1
+22V
SEC1-1
+22V
+7V +12VA
DMIXR
DMIXL SEC1-2
CDR SELDA -VP
SEC3-1
SELCK
SELMUT -7V -12VA -22V SEC3-2
TOL
STEREO
SD
TMUT
TUR
GND
TUL
RDSDET
+12VA
FMSIG
GND
PLLCL
PLLDA
PLLSTB
TX
RX1
+5VDSP
RX2
RX3
VMUT1
VMUT2
CTLB
CTLA
RI
CNPT
GND
+12VVD
V1OL
V1OR
TOL
TOR
CDL 5.6S
TOR PROTHERM
+12VVD
TUR
TUL CTLB
V4R CTLA
TIR V4L POWER
POWER
CDR +5VDSP
VMUT1
VMUT2
SPF SPF
CDL SPCS SPCS
TIR SEC1H SEC1H
TMUT
PLLCL
PLLDA
PLLSTB
AMUT
PLLDI
TIL TIL
STEREO
SD
SPB SPB
V3IR OUT_R CNPT VOLH
V3IR V3IL
PROTECT
V2IR OUT_L HPIN GND
V2IL
V1IR OUT_C
RI
+13V
V3IL V1IL OUT_RS
AMUT
HPIN
OUT_LS OUT_L
MCRDY
OUR_LB T1RECMUT HPMUT
MCSDA
V1RECMUT MCRST
MCMDA
OUT_SW SELMUT MCCLK
MCCLK
DVDR SELCK MCMDA
MCRST
DVDL SELDA MCSDA
HPMUT
OUT_R LPO CODECPD MCRDY
-VP
V2IR GND CODECCS
OUT_RS RPO FCS
MC MCRDY
DRES 232TXD
MRS RSPO IC
V1OR
V1OL
232RXD
V2IL MLS GND FVCC
DSPCLK
LSPO MPURST
DSPDA
MSW MCCLK
DSI
OUT_LS CPO MCMDA
MCSDA
OUT_C SBO GND
ADCR+ PROTHERM
DAC_R
DAC_L
DAC_C
DAC_RS
DAC_LS
DAC_SBL
DAC_SW
ADCL+
V1IR VOLH
PROTECT
DSPCLK
DSPDA
FCS
DRES
V1IL
DVDR
SWPO
IC
DVDL DAC_L
DMIXR
DMIXL
+5VDSP
MRS RDSSCK
AMUT
RDSSIG
MLS
INT1
INT0
FINT
INTDSP
RDSDATA
CODECPD
CODECCS
DSPCLK_33
DSPDA_33
3VFCS
3VDRES
3VSCS
+12VA
MSW T1RECMUT
V1RECMUT
MC
RDSSIG
DAC_R
RDSDATA
DAC_SW
+2.5
+3.3V
RDSDET
SDCLK
A9
DSI
ADCL+
ADCR+
3VINT
A10
SDCS
A4
A5
A6
A7
A8
A11
A12
A13
A14
A15
A16
A17
A18
UDQM
D7
D6
D5
LDQM
D4
D3
SDBA
INTDSP
CS_SDVDD
CKE
3VDSI
A3 A4
A2 A5
A1 A6
A0 A7
D0 A12 A0 D2
A18
D1 A15 A1 D1
D2 A16 A2 D0
A3 SDWE
D3 RAS CS
CODECPD
D4 CAS OE
CODECCS
DSPDA_33
DSPCLK_33
D5 A17 WE
+12VA D6 A14
DACDA4
+5VDSP
D7 A13
DACDA3 CS A8
SAI_SDOUT
DACDA2 INT1
A10 A9
-12VA DACDA1 FINT
OE A11
DAC_LS
DAC_RS
DAC_SBL
3VINT1
WE
DIRLRCK
3VINT0
DIRBCK
INT0
3VFINT
3VDSI
3VINT1
3VINT0
3VFINT
DALRCK
DACBCK
ADSDO 3VFCS
DIRLRCK
DIRBCK
SAI_SDOUT D0 A18
D1 A17
3VINT
DIRMCKO D2 A16
D3 A15
+3.3V
D4 A14
OMCK
DAC_SW D5 A13
DACBCK
+5VDSP D6 A12
DACDA4 D7 A11
DACDA3
DALRCK
LDQM
3VINT1
DAC_C DSPXTI SDWE
UDQM
CAS
SDCLK
3VINT0
DIRBCK
DIRLRCK
RAS CKE
SDCS
+5VDSP
SDBA A9
A10 A8
A0 A7
DAC_R A1 A6
A2 A5
CS_VDD A3 A4
DSPCLK_33
DIRLRCK DSPDA_33
DIRBCK 3VDSI
DAC_L 3VDRES
DSPXTI
3VSCS
RX1
RX2
RX3
TX
SAI_SDOUT
TX
RX1
RX2
RX3
Refer to the following table about the parts displyed by mark " "
DESCRIPTION
R7003 000J
R7078 000J
R7079 10K
R7080 4.7K
R7178 NO
R7179 33K
R7180 33K
U01
TO NAETC-8234
L
R
L
R
SUBWOOFER
PREOUT
TO NAAF-8235
NC
NC
NC
NC
NC
TO NAETC-8243
DVD
SUBWOOFER
P302
NC
REF. NO.
NC
101K101K
NC
NC
NC
101J
101J
101J
101J
NC
101J
101J
101J
101J 101J101J 101J101J
NC
NC
NC
NC
NC
NC
PRE-AMPLIFIER PC BOARD
<Notes>
NC=No mount of parts.
NADG-8230
104
UHS0.GPIO18
UHS1,GPIO19
INTREQ
FA1,FSCDIN
1
2
3
4
AUDATA2
HDATA3,GPIO3
LRCK0
AUDATA3,XMT958A
105
106
107
108
SDADDR3,EXTA3
SD_ADDR2,EXTA2
SD_ADDR1,EXTA1
SD_ADDR1,EXTA173
74
75
76 SDWE
SD_DATA0,EXTD0
SD_DATA1,EXTD1
SD_DATA2,EXTD2
33
34
35
36
NC
AGND11 AGND22 INA13GOUTFL 79
VINFL 78
VINFR 80
GOUTSB 51
GOUTSL 53
VINCB 52
INDVDCB29 INDVDSL28
INDVDSW
30
LOUT243 NC4
42
ROUT3
41
BICK1 18
CDTO 20
LRCK1 19
BOUT 2
INT1 1
TVDD 3
58
59
60
NC9
RX1
TEST1
NC
NC
A
1
2
3
4
5
BCDEFGH
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
SCHEMATIC DIAGRAMS-2
DISPLAY SECTION
HT-R820THX HT-R820THX
P7502A
F2
F2
NP
NP
P35
P34
P33
P32
P31
P30
P29
P28
P27
P26
P25
P24
P23
P22
P21
P20
P19
P18
P17
P16
P15
P14
P13
P12
P11
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
16G
15G
14G
13G
12G
11G
10G
9G
8G
7G
6G
5G
4G
3G
2G
1G
NP
NP
F1
F1
Q7501 HNA-16MM39T
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
JL7501B
JL7501A
JL7502A
JL7502B
S7638
FM MODE
S7637
CD
S7614
TONE
S7627
MEMORY
S7625
DIGITAL
INPUT
S7624
DISPLAY
S7626
----
S7647
SET UP
S7616
SP B
S7617
SP A S7615
STANDBY
S7645
TUNING<
S7644
TUNING>
S7643
ENTER
S7642
PRESET<
S7641
PRESET>
S7646
RETURN
S7635
TAPE
S7634
VIDEO3
S7633
VIDEO2
S7632
VIDEO1
S7631
DVD
ADJUST
S7636
TUNER
S7623
LISTEN
MODE>
S7622
LISTEN
MODE<
S7621
MULTI
CH
S7613
TONE-
S7612
TONE+
S7611
P7503A
P999
NC
S7501
E7501
Q7504
RN2403
KRA103S
U7501
PIC-3704TH2
L7505
220K
NCH1477Z
L7504
220K
NCH1477Z
Q7502
MPD780232GC-096-8BT
21:ANI1
21
22:ANI0
22
41:P45/FIP37
41
42:P44/FIP36
42
43:P43/FIP35
43
61:FIP19
61
ANI220ANI319
AVDD24
AVSS18
FIP0 80
FIP1 79
FIP10 70
FIP11 69
FIP12 68
FIP13 67
FIP14 66
FIP15 65
FIP16 64
FIP17 63
FIP18 62
FIP2 78
FIP20 58
FIP21 57
FIP22 56
FIP23 55
FIP3 77
FIP4 76
FIP5 75
FIP6 74
FIP7 73
FIP8 72
FIP9 71
IC5
P01/INTP116P02/TI17
P20/SCK314P21/SO313 P2212 P2311P24/BUSY10P25SO19 P26/SI18 P27/SCK17 P30/FIP24 54
P31/FIP25 53
P32/FIP26 52
P33/FIP27 51
P34/FIP28 50
P35/FIP29 49
P36/FIP30 48
P37/FIP31 47
P40/FIP32 46
P41/FIP33 45
P42/FIP34 44
P46/FIP3840 P47/FIP3939 P50/FIP4038 P51/FIP4137 P52/FIP4236 P53/FIP4335 P54/FIP4434 P55/FIP4533 P56/FIP4632 P57/FIP4731 P60/FIP4830 P61/FIP4929 P62/FIP5028 P63/FIP51
27 P64/FIP5226
POO/INTP015
VDD025
VDD11VDD2 59
VLOAD60
VSS023
VSS12 X13 X2
4
RESET6
P7501
PHONES
R7637 3.9K R7636 2.2K
R7613
560
R7626 2.2K R7625
1.2K R7624
820 R7623 560
R7646 2.2K
R7513
R7531
220
R7616
1.2K R7615
820
R7524 1K
R7617
2.2K
R7641 330R7645 1.2K R7644 820 R7643 560 R7642 470
R7631 330
R7632 470R7633 560R7634 820R7635 1.2K
R7621
330
R7622
470
R7612
470
R7611
330
Q7507
Q7506
RN1402
KRC102S
X7501
CST5.00MGW
Q7503
2SC2712
KTC3875
R7580
10K X 15
D7504
D7505
STANDBY
D7501
UDZ8.2B
D7502
UDZ5.1B
D7507
1SS352
D7503
1SS352
C7521
220/6.3
C7514
100/6.3
C7502
33/50
C7523 102J
C7522 101J
C7511 102J
C7513 104Z
C7515
104Z
C7516
104Z C7517
102J
C7519
102J C7520
102J
C7518
102J
C7508 102J
C7509 102J
C7506
104Z
C7501 104Z
C7503 104Z
C7507
104Z
C7505
473Z
C7504
473Z
C7510 102J
R7504 47k
R7514
L7503
L7502
L7501
R7512 10K
R995 NC
R996 NC
R997 NC
R998 NC
R999
10K
R7516 10K
R7519
100K
R7518
100K
R7515 10K
R7507 4.7K
R7517 1K
R7503
10K
R7520 2.7K
R7521 2.7K
R7501 220
R7502 220
R7506 4.7K
R7532
10K
R7527 10K
R7526 10K
R7530 1K
R7529 560
R7528 560
R7508 4.7K
R7509 4.7K
R7510 1K
R7511 1K
R7522 2.7K
R7523 2.7K
R7505
220K
G[11]
G[1]
G[16]
P[1]
G[2]
G[3]
G[4]
G[5]
G[6]
G[7]
G[8]
G[9]
G[10]
G[12]
G[13]
G[14]
G[15]
P[28]
P[32]
P[35]
P[2]
P[3]
P[4]
P[5]
P[6]
P[7]
P[8]
P[9]
P[10]
P[11]
P[12]
P[13]
P[14]
P[15]
P[16]
P[17]
P[18]
P[19]
P[20]
P[21]
P[22]
P[23]
P[24]
P[25]
P[26]
P[27]
P[29]
P[30]
P[33]
P[34]
P[31]
P[35]
P[34]
P[33]
P[32]
P[31]
P[30]
P[29]
P[28]
P[27]
P[26]
P[25]
P[24]
P[23]
P[22]
P[21]
P[20]
P[19]
P[18]
P[16]
P[15]
P[14]
P[13]
P[12]
P[10]
P[9]
P[8]
P[7]
P[6]
P[5]
P[4]
P[3]
P[2]
P[1]
P[11]
P[17]
G[1;16]
G[3]
G[14]
G[13]
G[12]
G[11]
G[9]
G[8]
G[7]
G[6]
G[5]
G[4]
G[16]
G[15]
G[10]
G[2]
G[1]
SYSOUT
IRF
VAJ
VBJ
STBYLED
SYSIN
SBMLDY
SBMDI
SBMDO
SBMCLK
SBMRST
K3
K1
K2
K0
K0
K1
K2
K3
GND
KEY0
HPDET
GND
HPL
HPE
HPR
SYSIN
HPDET
SBMLDY
SBMDI
SBMDO
SBMCLK
SBMRST
-VP
+5.6S
FAC2
FAC1
HPR
HPE
HPL
GND
GND
NAETC-8233
NASW-8232
NADIS-8231
TO NAETC-8238
TO NADG-8230
U03
MASTER VOLUME
U04
R7581 100k X 14
<Notes>
NC=No mount of parts.
NOTE
THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY
REPLACE ONLY WITH PART NUMBER SPECIFIED
VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL)
ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
ELECTROLYTIC CAPACITORS ( ) ARE IN u F/WV.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
IS DC VOLTAGE, AT NO INPUT SIGNAL.
R7582
NC
100K X 13
NC
NC
U02 DISPLAY PC BOARD
FL TUBE
NC NC
NC
NC
STEREO
HEADPHONE TERMINAL
PC BOARD
OPERATION SWITCH
PC BOARD
A
1
2
3
4
5
BCDEFGH
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
SCHEMATIC DIAGRAMS-2
DISPLAY SECTION
HT-R820THX HT-R820THX
P7502A
F2
F2
NP
NP
P35
P34
P33
P32
P31
P30
P29
P28
P27
P26
P25
P24
P23
P22
P21
P20
P19
P18
P17
P16
P15
P14
P13
P12
P11
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
16G
15G
14G
13G
12G
11G
10G
9G
8G
7G
6G
5G
4G
3G
2G
1G
NP
NP
F1
F1
Q7501 HNA-16MM39T
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
JL7501B
JL7501A
JL7502A
JL7502B
S7638
FM MODE
S7637
CD
S7614
TONE
S7627
MEMORY
S7625
DIGITAL
INPUT
S7624
DISPLAY
S7626
----
S7647
SET UP
S7616
SP B
S7617
SP A S7615
STANDBY
S7645
TUNING<
S7644
TUNING>
S7643
ENTER
S7642
PRESET<
S7641
PRESET>
S7646
RETURN
S7635
TAPE
S7634
VIDEO3
S7633
VIDEO2
S7632
VIDEO1
S7631
DVD
ADJUST
S7636
TUNER
S7623
LISTEN
MODE>
S7622
LISTEN
MODE<
S7621
MULTI
CH
S7613
TONE-
S7612
TONE+
S7611
P7503A
P999
NC
S7501
E7501
Q7504
RN2403
KRA103S
U7501
PIC-3704TH2
L7505
220K
NCH1477Z
L7504
220K
NCH1477Z
Q7502
MPD780232GC-096-8BT
21:ANI1
21
22:ANI0
22
41:P45/FIP37
41
42:P44/FIP36
42
43:P43/FIP35
43
61:FIP19
61
ANI220ANI319
AVDD24
AVSS18
FIP0 80
FIP1 79
FIP10 70
FIP11 69
FIP12 68
FIP13 67
FIP14 66
FIP15 65
FIP16 64
FIP17 63
FIP18 62
FIP2 78
FIP20 58
FIP21 57
FIP22 56
FIP23 55
FIP3 77
FIP4 76
FIP5 75
FIP6 74
FIP7 73
FIP8 72
FIP9 71
IC5
P01/INTP116P02/TI17
P20/SCK314P21/SO313 P2212 P2311P24/BUSY10P25SO19 P26/SI18 P27/SCK17 P30/FIP24 54
P31/FIP25 53
P32/FIP26 52
P33/FIP27 51
P34/FIP28 50
P35/FIP29 49
P36/FIP30 48
P37/FIP31 47
P40/FIP32 46
P41/FIP33 45
P42/FIP34 44
P46/FIP3840 P47/FIP3939 P50/FIP4038 P51/FIP4137 P52/FIP4236 P53/FIP4335 P54/FIP4434 P55/FIP4533 P56/FIP4632 P57/FIP4731 P60/FIP4830 P61/FIP4929 P62/FIP5028 P63/FIP51
27 P64/FIP5226
POO/INTP015
VDD025
VDD11VDD2 59
VLOAD60
VSS023
VSS12 X13 X2
4
RESET6
P7501
PHONES
R7637 3.9K R7636 2.2K
R7613
560
R7626 2.2K R7625
1.2K R7624
820 R7623 560
R7646 2.2K
R7513
R7531
220
R7616
1.2K R7615
820
R7524 1K
R7617
2.2K
R7641 330R7645 1.2K R7644 820 R7643 560 R7642 470
R7631 330
R7632 470R7633 560R7634 820R7635 1.2K
R7621
330
R7622
470
R7612
470
R7611
330
Q7507
Q7506
RN1402
KRC102S
X7501
CST5.00MGW
Q7503
2SC2712
KTC3875
R7580
10K X 15
D7504
D7505
STANDBY
D7501
UDZ8.2B
D7502
UDZ5.1B
D7507
1SS352
D7503
1SS352
C7521
220/6.3
C7514
100/6.3
C7502
33/50
C7523 102J
C7522 101J
C7511 102J
C7513 104Z
C7515
104Z
C7516
104Z C7517
102J
C7519
102J C7520
102J
C7518
102J
C7508 102J
C7509 102J
C7506
104Z
C7501 104Z
C7503 104Z
C7507
104Z
C7505
473Z
C7504
473Z
C7510 102J
R7504 47k
R7514
L7503
L7502
L7501
R7512 10K
R995 NC
R996 NC
R997 NC
R998 NC
R999
10K
R7516 10K
R7519
100K
R7518
100K
R7515 10K
R7507 4.7K
R7517 1K
R7503
10K
R7520 2.7K
R7521 2.7K
R7501 220
R7502 220
R7506 4.7K
R7532
10K
R7527 10K
R7526 10K
R7530 1K
R7529 560
R7528 560
R7508 4.7K
R7509 4.7K
R7510 1K
R7511 1K
R7522 2.7K
R7523 2.7K
R7505
220K
G[11]
G[1]
G[16]
P[1]
G[2]
G[3]
G[4]
G[5]
G[6]
G[7]
G[8]
G[9]
G[10]
G[12]
G[13]
G[14]
G[15]
P[28]
P[32]
P[35]
P[2]
P[3]
P[4]
P[5]
P[6]
P[7]
P[8]
P[9]
P[10]
P[11]
P[12]
P[13]
P[14]
P[15]
P[16]
P[17]
P[18]
P[19]
P[20]
P[21]
P[22]
P[23]
P[24]
P[25]
P[26]
P[27]
P[29]
P[30]
P[33]
P[34]
P[31]
P[35]
P[34]
P[33]
P[32]
P[31]
P[30]
P[29]
P[28]
P[27]
P[26]
P[25]
P[24]
P[23]
P[22]
P[21]
P[20]
P[19]
P[18]
P[16]
P[15]
P[14]
P[13]
P[12]
P[10]
P[9]
P[8]
P[7]
P[6]
P[5]
P[4]
P[3]
P[2]
P[1]
P[11]
P[17]
G[1;16]
G[3]
G[14]
G[13]
G[12]
G[11]
G[9]
G[8]
G[7]
G[6]
G[5]
G[4]
G[16]
G[15]
G[10]
G[2]
G[1]
SYSOUT
IRF
VAJ
VBJ
STBYLED
SYSIN
SBMLDY
SBMDI
SBMDO
SBMCLK
SBMRST
K3
K1
K2
K0
K0
K1
K2
K3
GND
KEY0
HPDET
GND
HPL
HPE
HPR
SYSIN
HPDET
SBMLDY
SBMDI
SBMDO
SBMCLK
SBMRST
-VP
+5.6S
FAC2
FAC1
HPR
HPE
HPL
GND
GND
NAETC-8233
NASW-8232
NADIS-8231
TO NAETC-8238
TO NADG-8230
U03
MASTER VOLUME
U04
R7581 100k X 14
<Notes>
NC=No mount of parts.
NOTE
THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY
REPLACE ONLY WITH PART NUMBER SPECIFIED
VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL)
ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
ELECTROLYTIC CAPACITORS ( ) ARE IN u F/WV.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
IS DC VOLTAGE, AT NO INPUT SIGNAL.
R7582
NC
100K X 13
NC
NC
U02 DISPLAY PC BOARD
FL TUBE
NC NC
NC
NC
STEREO
HEADPHONE TERMINAL
PC BOARD
OPERATION SWITCH
PC BOARD
A
1
2
3
4
5
BCDEFGH
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
SCHEMATIC DIAGRAMS-3
DRIVER AMPLIFIER SECTION
HT-R820THX HT-R820THX
A
1
2
3
4
5
BCDEFGH
U06
Q5012
Q5002
Q5042
Q5052
Q5011
Q5001
Q5041
Q5051
Q5010
Q5000
Q5040
Q5050
Q5013
Q5003
Q5043
Q5053
Q5014
Q5004
Q5044
Q5054
Q5015
Q5005
Q5045
Q5055
Q5032
Q5031
Q5030
Q5033
Q5034
Q5035
R5012
56K
R5002
1K
R5022
330
R5062
1.2K
R5162
150(1/4W)
R5172
150
(1/4W)
R5032
56K
R5072
NC
R5112
1K
R5092
100K
R5052
4.7K
R5082
470
R5102
100K
R5182
10
(1/4W)
R5192
10
(1/4W)
R5042 2.2K
R5132
18K R5142
R5011
56K
R5001
1K
R5021
330
R5061
1.2K
R5161
150(1/4W)
R5171
150
(1/4W)
R5031
56K
R5071
NC
R5111
1K
R5091
100K
R5051
4.7K
R5081
470
R5101
100K
R5181
10
(1/4W)
R5191
10
(1/4W)
R5041 2.2K R5131
18K R5141
NC
R5010
56K
R5000
1K
R5020
330
R5060
1.2K
R5160
150(1/4W)
R5170
150(1/4W)
R5030
56K
R5070
NC
R5110
1K
R5090
100K
R5050
4.7K
R5080
470
R5100
100K
R5180
10
(1/4W)
R5190
10
(1/4W)
R5040 2.2K
R5130
18K R5140
NC
R5013
56K
R5003
1K
R5023
330
R5063
1.2K
R5163
150(1/4W)
R5173
150
(1/4W)
R5033
56K
R5073
NC
R5113
1K
R5093
100K
R5053
4.7K
R5083
470
R5103
100K
R5183
10
(1/4W)
R5193
10
(1/4W)
R5043 2.2K
R5133
18K R5143
R5014
56K
R5004
1K
R5024
330
R5064
1.2K
R5164
150(1/4W)
R5174
150
(1/4W)
R5034
56K
R5074
R5114
1K
R5094
100K
R5054
4.7K
R5084
470
R5104
100K
R5184
10
(1/4W)
R5194
10
(1/4W)
R5044 2.2K
R5134
18K R5144
R5015
56K
R5005
1K
R5025
330
R5065
1.2K
R5165
150(1/4W)
R5175
150 (1/4W)
R5035
56K
R5075
NC
R5115
1K
R5095
82K
[100K]
R5055
4.7K
R5085
470
R5105
100K
R5185
10
(1/4W)
R5195
10
(1/4W)
R5045 2.2K
R5135
18K R5145
C5012
22/16
C5042
100/16
C5052
47/50
C5112
10/100
C5102
10/100
C5022
10/50
C5011
47/16
C5041
220/16
C5051
47/50
C5111
10/100
C5101
10/100
C5021
10/50
C5010
47/16
C5040
220/16
C5050
47/50
C5110
10/100
C5100
10/100
C5020
10/50
C5013
22/16
C5043
100/16
C5053
47/50
C5113
10/100
C5103
10/100
C5023
10/50
C5014
22/16
C5044
100/16
C5054
47/50
C5114
10/100
C5104
10/100
C5024
10/50
C5015
22/16
C5045
220 /16
C5055
47/50
C5115
10/100
C5105
10/100
C5025
10/50
C5002
101K
C5082
040D
C5092
101J
C5032
C5001
101K
C5081
040D
C5091
101J
C5031
C5000
101K
C5080
040D
C5090
101J
C5030
C5003
101K
C5083
040D
C5093
101J
C5033
C5004
101K
C5084
040D
C5094
101J
C5034
C5005
101K
C5085
040D
C5095
101J
C5035
P6002A
TO NAAF-8245
P6001A
TO NAAF-8245
P6000A
TO NAAF-8245
P6003A
TO NAAF-8245
P6004A
TO NAAF-8245
P6005A
TO NAAF-8245
C5072
C5071
C5070
C5073
C5074
C5075
D5002
MTZJ5.6B
D5001
MTZJ5.6B
D5000
MTZJ5.6B
D5003
MTZJ5.6B
D5004
MTZJ5.6B
D5005
MTZJ5.6B
66.5V
-66.5V
65.1V 65.7V
-61V
-65.7V
-61.6V
1.0V
-65.1V
0V
-0.1V
-0.7V -1V
66.5V
-66.5V
65.1V 65.7V
-61V
-65.7V
-61.6V
1.0V
-65.1V
0V
-0.1V
-0.7V -1V
66.5V
-66.5V
65.1V 65.7V
-61V
-65.7V
-61.6V
1.0V
-65.1V
0V
-0.1V
-0.7V -1V
66.5V
-66.5V
65.1V 65.7V
-61V
-65.7V
-61.6V
1.0V
-65.1V
0V
-0.1V
-0.7V
-1V
66.5V
-66.5V
65.1V 65.7V
-61V
-65.7V
-61.6V
1.0V
-65.1V
0V
-0.1V
-0.7V -1V
66.5V
-66.5V
65.1V 65.7V
-61V
-65.7V
-61.6V
1.0V
-65.1V
0V
-0.1V
-0.7V
-1V
P406AP407A
P306A
TO NADG-8230
P6011A
TO NAAF-8245
E
E
SB
E
C
E
SL
E
SR
E
R
E
L
E
E
E
E
E
E
E
E
E
E
E
L
R
C
SL
SR
SB
NAAF-8235
NF
-B1
+B1
B+
B-
NF
-B1
+B1
B+
B-
NF
-B1
+B1
B+
B-
NF
-B1
+B1
B+
B-
NF
-B1
+B1
B+
B-
NF
-B1
+B1
B+
B-
NOTE
THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY
REPLACE ONLY WITH PART NUMBER SPECIFIED
VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL)
ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
ELECTROLYTIC CAPACITORS ( ) ARE IN u F/WV.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
IS DC VOLTAGE, AT NO INPUT SIGNAL.
<Notes>
NC=No mount of parts.
REF. NO. DESCRIPTION
Q5000-5005,5010-5015 KTC3200-BL OR 2SC1775A-E,F OR 2SC1845-E
Q5030-35 2SA949(ONK)-Y,O
Q5040-45 2SC2229(ONK)-Y,O
Q5050-55 KTC3200-BL,GR OR 2SC1775A-E,F OR 2SC1845-E,F
Refer to the following table about the parts displayed by mark " ".
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
DRIVER AMPLIFIER PC BOARD
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
SCHEMATIC DIAGRAMS-3
DRIVER AMPLIFIER SECTION
HT-R820THX HT-R820THX
A
1
2
3
4
5
BCDEFGH
U06
Q5012
Q5002
Q5042
Q5052
Q5011
Q5001
Q5041
Q5051
Q5010
Q5000
Q5040
Q5050
Q5013
Q5003
Q5043
Q5053
Q5014
Q5004
Q5044
Q5054
Q5015
Q5005
Q5045
Q5055
Q5032
Q5031
Q5030
Q5033
Q5034
Q5035
R5012
56K
R5002
1K
R5022
330
R5062
1.2K
R5162
150(1/4W)
R5172
150
(1/4W)
R5032
56K
R5072
NC
R5112
1K
R5092
100K
R5052
4.7K
R5082
470
R5102
100K
R5182
10
(1/4W)
R5192
10
(1/4W)
R5042 2.2K
R5132
18K R5142
R5011
56K
R5001
1K
R5021
330
R5061
1.2K
R5161
150(1/4W)
R5171
150
(1/4W)
R5031
56K
R5071
NC
R5111
1K
R5091
100K
R5051
4.7K
R5081
470
R5101
100K
R5181
10
(1/4W)
R5191
10
(1/4W)
R5041 2.2K R5131
18K R5141
NC
R5010
56K
R5000
1K
R5020
330
R5060
1.2K
R5160
150(1/4W)
R5170
150(1/4W)
R5030
56K
R5070
NC
R5110
1K
R5090
100K
R5050
4.7K
R5080
470
R5100
100K
R5180
10
(1/4W)
R5190
10
(1/4W)
R5040 2.2K
R5130
18K R5140
NC
R5013
56K
R5003
1K
R5023
330
R5063
1.2K
R5163
150(1/4W)
R5173
150
(1/4W)
R5033
56K
R5073
NC
R5113
1K
R5093
100K
R5053
4.7K
R5083
470
R5103
100K
R5183
10
(1/4W)
R5193
10
(1/4W)
R5043 2.2K
R5133
18K R5143
R5014
56K
R5004
1K
R5024
330
R5064
1.2K
R5164
150(1/4W)
R5174
150
(1/4W)
R5034
56K
R5074
R5114
1K
R5094
100K
R5054
4.7K
R5084
470
R5104
100K
R5184
10
(1/4W)
R5194
10
(1/4W)
R5044 2.2K
R5134
18K R5144
R5015
56K
R5005
1K
R5025
330
R5065
1.2K
R5165
150(1/4W)
R5175
150 (1/4W)
R5035
56K
R5075
NC
R5115
1K
R5095
82K
[100K]
R5055
4.7K
R5085
470
R5105
100K
R5185
10
(1/4W)
R5195
10
(1/4W)
R5045 2.2K
R5135
18K R5145
C5012
22/16
C5042
100/16
C5052
47/50
C5112
10/100
C5102
10/100
C5022
10/50
C5011
47/16
C5041
220/16
C5051
47/50
C5111
10/100
C5101
10/100
C5021
10/50
C5010
47/16
C5040
220/16
C5050
47/50
C5110
10/100
C5100
10/100
C5020
10/50
C5013
22/16
C5043
100/16
C5053
47/50
C5113
10/100
C5103
10/100
C5023
10/50
C5014
22/16
C5044
100/16
C5054
47/50
C5114
10/100
C5104
10/100
C5024
10/50
C5015
22/16
C5045
220 /16
C5055
47/50
C5115
10/100
C5105
10/100
C5025
10/50
C5002
101K
C5082
040D
C5092
101J
C5032
C5001
101K
C5081
040D
C5091
101J
C5031
C5000
101K
C5080
040D
C5090
101J
C5030
C5003
101K
C5083
040D
C5093
101J
C5033
C5004
101K
C5084
040D
C5094
101J
C5034
C5005
101K
C5085
040D
C5095
101J
C5035
P6002A
TO NAAF-8245
P6001A
TO NAAF-8245
P6000A
TO NAAF-8245
P6003A
TO NAAF-8245
P6004A
TO NAAF-8245
P6005A
TO NAAF-8245
C5072
C5071
C5070
C5073
C5074
C5075
D5002
MTZJ5.6B
D5001
MTZJ5.6B
D5000
MTZJ5.6B
D5003
MTZJ5.6B
D5004
MTZJ5.6B
D5005
MTZJ5.6B
66.5V
-66.5V
65.1V 65.7V
-61V
-65.7V
-61.6V
1.0V
-65.1V
0V
-0.1V
-0.7V -1V
66.5V
-66.5V
65.1V 65.7V
-61V
-65.7V
-61.6V
1.0V
-65.1V
0V
-0.1V
-0.7V -1V
66.5V
-66.5V
65.1V 65.7V
-61V
-65.7V
-61.6V
1.0V
-65.1V
0V
-0.1V
-0.7V -1V
66.5V
-66.5V
65.1V 65.7V
-61V
-65.7V
-61.6V
1.0V
-65.1V
0V
-0.1V
-0.7V
-1V
66.5V
-66.5V
65.1V 65.7V
-61V
-65.7V
-61.6V
1.0V
-65.1V
0V
-0.1V
-0.7V -1V
66.5V
-66.5V
65.1V 65.7V
-61V
-65.7V
-61.6V
1.0V
-65.1V
0V
-0.1V
-0.7V
-1V
P406AP407A
P306A
TO NADG-8230
P6011A
TO NAAF-8245
E
E
SB
E
C
E
SL
E
SR
E
R
E
L
E
E
E
E
E
E
E
E
E
E
E
L
R
C
SL
SR
SB
NAAF-8235
NF
-B1
+B1
B+
B-
NF
-B1
+B1
B+
B-
NF
-B1
+B1
B+
B-
NF
-B1
+B1
B+
B-
NF
-B1
+B1
B+
B-
NF
-B1
+B1
B+
B-
NOTE
THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY
REPLACE ONLY WITH PART NUMBER SPECIFIED
VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL)
ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
ELECTROLYTIC CAPACITORS ( ) ARE IN u F/WV.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
IS DC VOLTAGE, AT NO INPUT SIGNAL.
<Notes>
NC=No mount of parts.
REF. NO. DESCRIPTION
Q5000-5005,5010-5015 KTC3200-BL OR 2SC1775A-E,F OR 2SC1845-E
Q5030-35 2SA949(ONK)-Y,O
Q5040-45 2SC2229(ONK)-Y,O
Q5050-55 KTC3200-BL,GR OR 2SC1775A-E,F OR 2SC1845-E,F
Refer to the following table about the parts displayed by mark " ".
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
DRIVER AMPLIFIER PC BOARD
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
SCHEMATIC DIAGRAMS-4
SPEAKERTERMINAL & POWER SUPPLY SECTION
HT-R820THX HT-R820THX
U11
P995C
BLU
P995B
RED
P995A
BLK
RL6801
P6801
FRONT
SPEAKERS-B
L
R
P902
D:120W 1A MAX
AC OUTLET
P7503B
TO NADIS-8231
P411A
TO NADG-8230
JL9501B
JL9501A
CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST
E LENT. POUR UNE PROTECTION PERMANENTE,N'UTILISER
QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
THAT THE FUSE USED IS SLOW OPERATING TYPE
FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD,REPLACE WITH SAME TYPE FUSE. FOR FUSE
RATING REFER TO THE MARKING ADJACENT TO THE SYMBOL
ATTENTION
VA
AFIN D'ASSURER UNE PROTECTION
PERMANENTE CONTRE LES RISQUES
D'INCENDIE, REMPLACER UNIQUEMENT
PAR UN FUSIBLE DE MEME TYPE
ET CALIBRATION COMME INDIQUE.
VA
FOR CONTINUED PROTECTION
AGAINST FIRE HAZARD, REPLACE
ONLY WITH FUSE OF SAME TYPE
AND RATING INDICATED.
CAUTION
NOTE
THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY
REPLACE ONLY WITH PART NUMBER SPECIFIED
VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL)
ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
ELECTROLYTIC CAPACITORS ( ) ARE IN u F/WV.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
IS DC VOLTAGE, AT NO INPUT SIGNAL.
P6907
NAAF-8245
JL6805B
TO NAAF-8245
JL6952B
TO NAAF-8245
T901
THERMAL FUSE
P901
T902
P901A
AC-H
AC-G
Q921
2SC2458-GR
2SC1740S-R,S
Q6931
NJM78M56FA
TA78057S OR
G
IO
P917
P918
19
15
16
17
18
P911
P912A
P911A
P912
14
13
12
11
10
9
8
C6933
10/16
C6931
1000/25
C922
100/35
F9501
F901
F903
5A125V
R922
R926
470(1W)
R9521
3.3 (1/2W)
R6935
120
(2W)
R921
8.2(1W)
R924 82
(1/2W)
R9503
0.22 (1/2W)
R9502
0.47 (1/2W)
R9501
1(1/2W)
R6800 NC
R6810 NC
R6801 NC
R6811 NC
R6802 NC
R6812 NC
R6803 NC
R6813 NC
R6804 NC
R6814 NC
R6805 NC
R6815 NC
C9513
223Z
J
J
J
J
J
JD6933
D6932
D6932,6933:
GP104003E OR
RL1N4003
D925
D922
D921
D924
D923
D921-D924
GP104003E OR
RL1N4003
D6804
D6801
D6800
C6842
C6845
C6852
C6855
C902
472M
/250VAC
C6932
103Z
C901
103M
/275VAC
C921
223Z
C923
223Z
C6804 103J
C6801 103Z
C6800 103J
C6843
C6844 C6854
C6853
C6840
C6841
C6856
C6857
C6850
C6851
C6846
C6847
RL6804
RL6803
RL6800
RL901
P931A
TO NNAF-8245
L6800 NC
L6801 NC
L6802 NC
L6803 NC
L6804 NC
L6805 NC
R923 1K
5.6V
17.8V
0.1V
P6802
CENTER
SPEAKER
L
R
P6931A
TO NAAF-8245
P410A
TO NADG-8230
P6800
FRONT SPEAKERS-A
L
R
JL6803B
TO NAAF-8245
JL6804B
TO NAAF-8245
LSP
RSP
CSP
LSSP
RSSP
SBSP
FLAC1
FLAC2
MPUGND
HPL
AGND
HPR
+5.6V
+24V
S3
S3GND
S3
S2
S2
BRLD
S2
FRLD
S2
CSRLD
+5.6V
+24V
PROTHERM
LSPE
RSPE
POWER
CSPE
SPF
LSSPE
SPCS
RSSPE
SE1H
SBSPE
SPB
VOLH
PRO
MPUGND
+13VS
+13VS
+13VS
PROTHERM
MPUGND
MPUGND
MPUGND
S3GND
+13VS
POWER
PRO
SPF
SPCS
SPB
SE1H
VOLH
+24V
AGND
HPR
HPL
POWER
3
7
NPT-1492D
8A125V
NAPS-8248
NAPS-8247
NAPS-8249
NAETC-8239
NAETC-8238
NAETC-8240
U19
U10
U20
U09
NC
U18
<Notes>
NC=No mount of parts.
NPT-1494D
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
SURROUND
BACK
SPEAKER
NC
NC
NC
NC
SPEAKER TERMINAL PC BOARD
POWER SUPPLY PC BOARD
TERMINAL
PC BOARD
TERMINAL PC BOARD
TERMINAL
PC BOARD
REGULATOR PC BOARD
SURROUND
SPEAKERS
TO NAAF-8245
A
1
2
3
4
5
BCDEFGH
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
SCHEMATIC DIAGRAMS-4
SPEAKERTERMINAL & POWER SUPPLY SECTION
HT-R820THX HT-R820THX
U11
P995C
BLU
P995B
RED
P995A
BLK
RL6801
P6801
FRONT
SPEAKERS-B
L
R
P902
D:120W 1A MAX
AC OUTLET
P7503B
TO NADIS-8231
P411A
TO NADG-8230
JL9501B
JL9501A
CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST
E LENT. POUR UNE PROTECTION PERMANENTE,N'UTILISER
QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
THAT THE FUSE USED IS SLOW OPERATING TYPE
FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD,REPLACE WITH SAME TYPE FUSE. FOR FUSE
RATING REFER TO THE MARKING ADJACENT TO THE SYMBOL
ATTENTION
VA
AFIN D'ASSURER UNE PROTECTION
PERMANENTE CONTRE LES RISQUES
D'INCENDIE, REMPLACER UNIQUEMENT
PAR UN FUSIBLE DE MEME TYPE
ET CALIBRATION COMME INDIQUE.
VA
FOR CONTINUED PROTECTION
AGAINST FIRE HAZARD, REPLACE
ONLY WITH FUSE OF SAME TYPE
AND RATING INDICATED.
CAUTION
NOTE
THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY
REPLACE ONLY WITH PART NUMBER SPECIFIED
VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL)
ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
ELECTROLYTIC CAPACITORS ( ) ARE IN u F/WV.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
IS DC VOLTAGE, AT NO INPUT SIGNAL.
P6907
NAAF-8245
JL6805B
TO NAAF-8245
JL6952B
TO NAAF-8245
T901
THERMAL FUSE
P901
T902
P901A
AC-H
AC-G
Q921
2SC2458-GR
2SC1740S-R,S
Q6931
NJM78M56FA
TA78057S OR
G
IO
P917
P918
19
15
16
17
18
P911
P912A
P911A
P912
14
13
12
11
10
9
8
C6933
10/16
C6931
1000/25
C922
100/35
F9501
F901
F903
5A125V
R922
R926
470(1W)
R9521
3.3 (1/2W)
R6935
120
(2W)
R921
8.2(1W)
R924 82
(1/2W)
R9503
0.22 (1/2W)
R9502
0.47 (1/2W)
R9501
1(1/2W)
R6800 NC
R6810 NC
R6801 NC
R6811 NC
R6802 NC
R6812 NC
R6803 NC
R6813 NC
R6804 NC
R6814 NC
R6805 NC
R6815 NC
C9513
223Z
J
J
J
J
J
JD6933
D6932
D6932,6933:
GP104003E OR
RL1N4003
D925
D922
D921
D924
D923
D921-D924
GP104003E OR
RL1N4003
D6804
D6801
D6800
C6842
C6845
C6852
C6855
C902
472M
/250VAC
C6932
103Z
C901
103M
/275VAC
C921
223Z
C923
223Z
C6804 103J
C6801 103Z
C6800 103J
C6843
C6844 C6854
C6853
C6840
C6841
C6856
C6857
C6850
C6851
C6846
C6847
RL6804
RL6803
RL6800
RL901
P931A
TO NNAF-8245
L6800 NC
L6801 NC
L6802 NC
L6803 NC
L6804 NC
L6805 NC
R923 1K
5.6V
17.8V
0.1V
P6802
CENTER
SPEAKER
L
R
P6931A
TO NAAF-8245
P410A
TO NADG-8230
P6800
FRONT SPEAKERS-A
L
R
JL6803B
TO NAAF-8245
JL6804B
TO NAAF-8245
LSP
RSP
CSP
LSSP
RSSP
SBSP
FLAC1
FLAC2
MPUGND
HPL
AGND
HPR
+5.6V
+24V
S3
S3GND
S3
S2
S2
BRLD
S2
FRLD
S2
CSRLD
+5.6V
+24V
PROTHERM
LSPE
RSPE
POWER
CSPE
SPF
LSSPE
SPCS
RSSPE
SE1H
SBSPE
SPB
VOLH
PRO
MPUGND
+13VS
+13VS
+13VS
PROTHERM
MPUGND
MPUGND
MPUGND
S3GND
+13VS
POWER
PRO
SPF
SPCS
SPB
SE1H
VOLH
+24V
AGND
HPR
HPL
POWER
3
7
NPT-1492D
8A125V
NAPS-8248
NAPS-8247
NAPS-8249
NAETC-8239
NAETC-8238
NAETC-8240
U19
U10
U20
U09
NC
U18
<Notes>
NC=No mount of parts.
NPT-1494D
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
SURROUND
BACK
SPEAKER
NC
NC
NC
NC
SPEAKER TERMINAL PC BOARD
POWER SUPPLY PC BOARD
TERMINAL
PC BOARD
TERMINAL PC BOARD
TERMINAL
PC BOARD
REGULATOR PC BOARD
SURROUND
SPEAKERS
TO NAAF-8245
A
1
2
3
4
5
BCDEFGH
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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