Onkyo R-805TX User manual

FM STEREO/AM TUNER
AMPLIFIER
MODEL R-805TX
Silver model
230-240V AC, 50Hz
120 V AC, 60 Hz
SUPP, SUPT
SUDT
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST
ARE CRITICAL FOR RISK OF FIRE AND ELEC-
TRIC SHOCK. REPLACE THESE COMPONENTS
WITH ONKYO PARTS WHOSE PARTS NUMBERS
APPEAR AS SHOWN IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPO-
SED PARTS ARE ACCEPTABLY INSULATED FORM
THE SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
Ref. No. 3681
052001
R-805TX
SERVICE MANUAL
STANDBY/ ON
DISPLAY
PHONES MEMORY
CLEAR
FM MODE
PRESET
TUNING
R-805TX
FM STEREO / AM TUNER AMPLIFIER
ENERGY SAVE
ACOUSTIC
PRESENCE
OFF/1/2/3
CD MD CDR/PC LINE/DVD
FM AM TAPE
INPUT
VOLUME
WIDE RANGE AMPLIFIER
TECHNOLOGY
WIDE RANGE AMPLIFIER
TECHNOLOGY
ACCUCLOCK
STANDBY/ ON
DISPLAY
PHONES MEMORY
CLEAR
FM MODE
PRESET
TUNING
R-805TX
FM STEREO / AM TUNER AMPLIFIER
ENERGY SAVE
ACOUSTIC
PRESENCE
OFF/1/2/3
CD MD CDR LINE/DVD
FM AM TAPE
INPUT
VOLUME
Asian model European model

SPECIFICATIONS
Fr
T
Amplier Section
Power output
20 watts per channel, min RMS, at 4
ohms, both channels driven 1 kHz,
with no mor e than 0.6% THD
15 watt per channel, min RMS, at
8 ohms, both channels driven 1 kHz,
with no mor e than 0.6% THD
2 X 20 watts at 4 ohms, 1 kHz, DIN
2 X 17 watts at 6 ohms, 1 kHz, DIN
2 X 15 watts at 8 ohms, 1 kHz, DIN
2 X 29 watts at 4 ohms, 1 kHz, EIAJ
Dynamic power output
2 X 24 watts at 4 ohms
2 X 17 watts at 8 ohms
otal harmonic distortion
0.6% at rated power
IM distortion
0.6% at rated power
Damping factor
30 at 8 ohms
Input Sensitivity and Impedance
TAPE/MD PLAY: 150 mV, 50 kohms
LINE IN: 150 mV, 50 kohms
equency and r esponse
10 to 50,000 Hz +0 / –3 dB
one contr ol
ACOUSTIC PRESENCE 1
+4 dB at 82 Hz
ACOUSTIC PRESENCE 2
+3 dB at 20.5 Hz, + 3 dB at 82 Hz
ACOUSTIC PRESENCE 3
+3 dB at 20.5 Hz, + 6 dB at 82 Hz
BASS
±8 dB at 100 Hz
TREBLE
±8 dB at 10 kHz
Signal to noise ratio
TAPE: 100 dB (IHF-A)
Muting
–∞dB
Tuner Section
Tuning range
FM: 87.9 to 107.9 MHz (200 kHz steps)
(U.S. & Canadian models)
87.5 to 108.00 MHz (50 kHz steps)
(Other area models)
AM: 530 to 1710 kHz (10 kHz steps)
(U.S. & Canadian models)
522 to 1611 kHz (9 kHz steps)
(Other area models)
Usable sensitivity
FM: Mono 11.2 dBf,
1.0 µV (75 ohms IHF)
0.9 µV (75 ohms DIN)
Stereo 17.2 dBf,
2.0 µV (75 ohms IHF)
23.0 µV (75 ohms DIN)
AM: 30 µV
50 dB Quieting sensitivity
FM: Mono 17.2 dBf, 2.0 µV (75 ohms)
Stereo 37.2 dBf, 20.0 µV (75 ohms)
Captur e ratio
FM: 2.0 dB
Image r ejection ratio
FM: 40 dB (U.S. & Canadian models)
85 dB (Other area models)
AM: 40 dB
IF rejection ratio
FM: 90 dB
AM: 40 dB
Signal to noise ratio
FM: Mono 73 dB, IHF
Stereo 67 dB, IHF
AM: 40 dB
Selectivity
FM: 50 dB DIN
(±300 kHz at 40 kHz Devi.)
AM Suppr ession Ratio
50 dB
Harmonic distortion
FM: Mono 0.2%
Stereo 0.3%
AM: 0.7 %
Frequency r esponse
FM: 30 to 15,000 Hz (±1.5 dB)
Stereo separation
FM: 45 dB at 1,000 Hz
30 dB at 100 to 10,000 Hz
Stereo thr eshold
FM: 17.2 dBf, 2.0 µV (75 ohms)
General
Clock precision
monthly error: +/-30 seconds
(at 25 degrees Celsius)
Power supply
AC 120 V, 60 Hz
AC 230 V, 50 Hz
Power consumption
61 W (120 V, 50 Hz)
54 W (230 V, 60 Hz)
Dimensions (W X H X D)
205 X 91 X 302 mm
8-1/16" X 3-9/16" X 11-7/8"
Weight
3.4 kg, 7.5 lbs
Specications and external appearance are
subject to change without notice as a result
of product improvement.
R-805TX

5. Changing the AM band step
The tuning step selector switch is not provided in this model.
When you change the band step, change the parts as shown
below.
To 10kHz To 9kHz
R715 3.3k 10k
R716 5.6k Open
6. Adjustment of clock frequency
1. Connect the frequency counter to the terminal TP701.
2. Press and hold down the MEMORY button, then press the
DISPLAY button.(All segments on FL tube light on)
3. Adjust the trimmer capacitor C707 so that the reading of
frequency counter becomes 524.288 kHz+/-1Hz.
4. Memory Preservation
This unit does not require memory preservation batteries. A
built-in memory power back-up system preserves the contents
of the memory during power failures and even when the unit is
unplugged.The unit must be plugged in order to charge the
back-up system.
The memory preservation period after the unit has been
unplugged varies depending on climate and placement of the
unit. On the av erage, memory contents are protected over a
period of a few weeks after the last time the unit has been
unplugged. This period is shorter when the unit is exposed to a
highly humid climate.
2.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 source 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 hold down the MEMORY button, then press the
DISPLAY button.
2. Press the STANDBY/ON button.
After "clear" is displayed, the preset memory and each
mode stored in the memory, such as surround, are
initialized and will return to the factory setting.
3. Safety-check out
(120V model only)
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 screw on the back panel.
Specifications: 3.3Mohm+/-10% at 500V.
1. Replacing the fuses
This symbol located near the fuses indicates that the
fuse used is fast 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 utlise est a rapide.
Pour une protection permanente, n'untiliser que fusibles de
meme type. Ce darnier est la qu le present symbol est
appse.
CIRCUIT NO. PART NO. DESCRIPTION
F901
F902
252158
252083
252069
Note: <D>: 120V model only
<P/T>: 230V model only
1.6A-UL/T237, Primary <D>
0.4A-SE-EAWK, Primary
<P/T>
0.8A-SE-EAK,AC outlet
<P/T>
SERVICE PROCEDURES
R-805TX

STANDBY/ON button Input source indicators
Multi display
Timer setting Frequency
indicators MUTING indicator
indicators Sleep time indicator
STEREO
MUTING
MIN
kHz
MHz
MONO PM RDS
AM
AUTOTIMER
W.DAY
W.END
REC
SLEEP
MEMORY
WIDE RANGE AMPLIFIER
TECHNOLOGY
ACCUCLOCK
STANDBY/ON
DISPLAY
PHONES MEMORY
CLEAR
FM MODE
PRESET
TUNING
R-805TX
FM STEREO / AM TUNER AMPLIFIER
ENERGY SAVE
ACOUSTIC
PRESENCE
OFF/1/2/3
CD MD CDR LINE/DVD
FM AM TAPE
INPUT
VOLUME
Remote control sensor
INPUT selector
VOLUME control
PHONES jack
ACOUSTIC PRESENCE button
ENERGY SA VE indicator
PRESET buttons
TUNING buttons
DISPLAY button
MEMORY button
CLEAR or
FM MODE button
ENERGY SAVE button
Display
AUTO/MONO indicatorMEMORY indicator
Tuning indicator
STEREO indicator
AM/PM indicator
RDS indicator
(non-U.S., non-Canadian models only)
European models front panel shown.
PANEL VIEWS
FRONT PANEL REAR PANEL
L
R
SPEAKERS
OUT
IN
L
R
OUT MD
CDR TAPE
CD IN LINE/DVD PROCESSOR
OUT IN OUT IN
REMOTE
CONTROL
L
R
L
R
L
R
AM
FM
75
ANTENNA
CAUTION:
SPEAKER
IMPEDANCE
4OHMS MIN.
/SPEAKER
ACOUTLET
AC 230-240V
50Hz
SWITCHED
100WMAX.
(PLAY)
(REC)
(PLAY)(REC)
OUT
IN
L
R
(REC)(PLAY)
OUT MD
CDR TAPE
CD IN LINE/DVD PROCESSOR
OUT IN OUT IN
REMOTE
CONTROL
L
R
L
R
L
R
CD recorder Stereo cassette
tape deck
PLAY
OUTPUT
REC
INPUT
PLAY
OUTPUT
REC
INPUT
PLAY
OUTPUT
REC
INPUT AUDIO
OUTPUT
: Signal flow
This unit (R-805TX)
(illustration is European model)
CD player MD recorder DVD, LD or Video equipment
OUTPUT
For the Asian model:
In addition to a CD
recorder, you can
connect a digital
audio processor to
this connector .
Connecting a sound processor (other than U.S. & Canadian models)
-
.
Connections
1Remove the jumper plugs.
2Connect the sound processor to the unit.
OUT IN
PROCESSOR
Jumper plug
L
R
SPEAKERS
OUT
IN
L
R
OUT MD
CDR TAPE
CD IN LINE/DVD PROCESSOR
OUT IN OUT IN
REMOTE
CONTROL
L
R
L
R
L
R
AM
FM
75
ANTENNA
CAUTION:
SPEAKER
IMPEDANCE
4OHMS MIN.
/SPEAKER
ACOUTLET
AC 230-240V
50Hz
SWITCHED
100WMAX.
OUT
IN
PROCESSOR
L
R
OUTPUT
: Signal flow
This unit (R-805TX)
INPUT Sound processor
R-805TX

• You can control the other -connected components with the supplied remote controller.
• The remote controller buttons operate in the same way as the buttons on each component
with the same indication.
• For actual operations, please refer to the Instruction Manual for each component.
CLOCK SLEEP EFFECT
GRAPHIC EQ
MODE
123
456
789
10 / 0
- -/ - - -
VOLUME
PRESET
F MA M
PLAY MODE
PLAY MODE
REPEAT
CLEAR
SCROLL
MEMORY
REPEAT
CLEAR
DISC
REPEAT
CLEAR
ACOUSTIC
PRESENCE
TONE
RANDOM
TIMER
UP/DOWN
ENTER
MUTING
INPUTTUNER
M D
DVD
C D
CDR
TAPE
REC
REC
PAUSE / STEP
STANDBY/ ON
REMOTE CONTROLLER RC
-456S
CLOCK button
Press this button to
display the current
time.
SLEEP button
Enables you to
make the Sleep
time setting.
INPUT button
Enables you to
select a listening
source.
MUTING button
Mutes the sound
temporarily .
VOLUME / but-
tons
Enables you to
increaseordecrease
the volume level.
ACOUSTIC PRES-
ENCE button
Switches acoustic
presence off and
types.
Number buttons
Used to set the
time/day and select
the PRESET stations.
STANDBY/ON button
Toggles between STANDBY and
ON.
Tuner control
PRESET : Tuner preset select
buttons
FM : FM band select button
AM : AM band select button
Enables you to set the tone.
TIMER:
Pressing this button
repeatedly to select one of the
following eight settings.
WEEKDAY: Timer playback on
the specified day(s) of the week.
WEEKEND:Timer playback on
the specied day(s) of the week.
REC:Timer record setting
DAYSET:Sets the day of the
week (WEEKDAY & WEEKEND).
ADJUST:Sets the current time
and the day of the week.
24H/12H:Enables you to select
24-hour display or 12-hour dis-
play by pressing the ENTER but-
ton and using the UP /DOWN
buttons.
UP /DOWN : Enables you to
select a parameter after you
press the TIMER or TONE but-
ton. Press the ENTER button to
confirm the selection.
ENTER:Press this button to con-
firm the selection made via the
TIMER, TONE, UP , or
DOWN button.
• Use the following buttons to control components that are connected to the - system.
CLOCK SLEEP EFFECT
GRAPHIC EQ
MODE
123
456
789
10 / 0
- -/ - - -
VOLUME
PRESET
F MA M
PLAY MODE
PLAY MODE
REPEAT
CLEAR
SCROLL
MEMORY
REPEAT
CLEAR
DISC
REPEAT
CLEAR
ACOUSTIC
PRESENCE
TONE
RANDOM
TIMER
UP/DOWN
ENTER
MUTING
INPUTTUNER
M D
DVD
C D
CDR
TAPE
REC
REC
PAUSE / STEP
STANDBY/ ON
REMOTE CONTROLLER RC
-456S
Graphic equalizer con-
trol
EFFECT: Effect select button
MODE: Mode select button
MD recorder control
REPEAT:Repeat mode
button
SCROLL: Scroll button
: Stop button
: Pause button
: Play button
PLAY MODE:Play mode
selection button
CLEAR:Clear button
REC:Recording button
: Track down button
: Track up button
CD recorder control
REPEAT :Repeat mode
button
PLAY MODE : Play mode
selection button
: Stop button
: Pause button
: Play button
CLEAR:Clear button
REC:Recording button
: Track down button
: Track up button
CD player (or changer) /
MD recorder /
CD recorder control
1~9, 10/0: Number buttons
--/--- : Ten’s hold button
Stereo cassette tape
deck control
: Reverse play button
: Stop button
: Play button
: Rewind button
: Fast-forward button
DVD player control
: Chapter/track down
button
: Chapter/track up
button
: Stop button
PAUSE/STEP : Pause/Step
forward button
: Play button
CD player (or changer)
control
REPEAT : Repeat mode button
RANDOM :Random play
button
: Stop button
: Pause button
: Play button
MEMORY:Memory button
CLEAR : Clear button
DISC: Disc button for CD
changer
: Track down button
: Track up button
REMOTE CONTROLLER
R-805TX
Mode Select buttons
TONE button

ONKYO
R-805TX
EXPLODED VIEW
3
19
20
25
26
31
17
3
4
3
2
3
1
U4
U1
5
P966 P965
U6
T901
3
P801
P851
U8
12
14
10
10
P901
P901(P/PT)
21
24
U2
U3
U5
8
3
6
3
15
11
E901
F901
F902
U10 P953
23
Q528
Q526
Q525
Q527
32
41
(D)

REF.NO. PART NO. DESCRIPTION
1 27111147A Front bracket
2 28325755 Knob, Acoustic
3 838130088 3TTB+8B,Self-tapping screw
4 27100375D Chassis
5 27175323 Leg
6 27141530A Retainer HS
8 801433 3SMS8W.SW+14B(BC),Special screw
10 27300750 !#2271,Bushing cord
11 830440089 4TTC+8C(BC),Self-tapping screw
12 27122840 Rear panel <P>
27122841 Rear panel <D>
27122856 Rear panel <T>
14 838430068 3TTB+6B(BC),Self-tapping screw
15 27160451B Heat sink
17 28198901 Facet
19 28191798 Clear plate RE
20 28191873A Clear plate
21 28184759-1 Top cover
22 28141409A Cushion
24 838930088 3TTB+8B(UN), Self-tapping screw
25 28325716 Knob INP
26 28325717 Knob VOL
31 27212304 Front panel <P>
27212317 Front panel <T/D>
32 28135247Y Badge
41 29362630 Label, processor
42 29110083 Tape, cloth
43 838430088 3TTB+8B(BC),Self-tapping screw
44 29362571 Label, warning
E901 260208 Wire tie
F901 252083 !0.4A-SE-EAWK,Fuse <P/T>
F901 252158 !1.6A-UL/T-237,Fuse <D>
F902 252069 !0.8A-SE-EAK,Fuse <P/T>
P801 25055436 NPLG-2P418,Plug
P851 880009 NRP-345,Plastic rivet <P/T>
P901 253277MIL !AS-UC-2#18,Power supply cord <D>
253193HIT !AS-CEE,Power supply cord <P/T>
P953 2047150512 NCFC7-150512,Flexible flat cable
REF.NO. PART NO. DESCRIPTION
P965 27150448A Shield plate
P966 880009 NRP-345,Plastic rivet
P967 27301779 HL-38-0,Clamp
Q525,Q526 2202064, *2SC4511-Y,
2202063 or *2SC4511-O or
2202066 *2SC4511-P,Transistor
Q527,Q528 2202054, *2SA1725-Y,
2202053 or *2SA1725-O or
2202056 *2SA1725-P,Transistor
T901 2301443 !NPT-1385D,Power transformer <D>
2301444 !NPT-1385P,Power transformer <P/T>
U1 1A911501-2C NAAF-6801-2C,Main circuit PC board ass'y <P>
1A911501-2D NAAF-6801-2D,Main circuit PC board ass'y <T>
1A911501-2E NAAF-6801-2E,Main circuit PC board ass'y <D>
U2 1A911502-2C NAETC-6802-2C,Input/output terminal PC board ass'y <P>
1A911502-2D NAETC-6802-2D,Input/output terminal PC board ass'y <T>
1A911502-2E NAETC-6802-2E,Input/output terminal PC board ass'y <D>
U3 1A911503-2C NAPS-6803-2C,Secondary circuit PC board ass'y <P>
1A911503-2D NAPS-6803-2D,Secondary circuit PC board ass'y <T>
1A911503-2E NAPS-6803-2E,Secondary circuit PC board ass'y <D>
U4 1A911504-2C NADG-6804-2C,Display circuit PC board ass'y <P>
1A911504-2D NADG-6804-2D,Display circuit PC board ass'y <T>
1A911504-2E NADG-6804-2E,Display circuit PC board ass'y <D>
U5 1A911505-2C NAAF-6805-2C,Tone circuit PC board ass'y <P>
1A911505-2D NAAF-6805-2D,Tone circuit PC board ass'y <T>
1A911505-2E NAAF-6805-2E,Tone circuit PC board ass'y <D>
U6 1A911506-2C NAPS-6806-2C,Primary circuit PC board ass'y <P>
1A911506-2D NAPS-6806-2D,Primary circuit PC board ass'y <T>
1A911506-2E NAPS-6806-2E,Primary circuit PC board ass'y <D>
U8 1A911507-2C NAETC-6807-2C,Speaker terminal PC board ass'y <P>
1A911507-2D NAETC-6807-2D,Speaker terminal PC board ass'y <T>
1A911507-2E NAETC-6807-2E,Speaker terminal PC board ass'y <D>
U10 240135 TFCE1E512A, Tuner unit
CAUTION: Replacement for transistor of mark *, if necessary
must be made from the same bata group (HFE) as
the original type.
NOTE: THE COMPONENTS IDENTIFIED BY MARK !
ARE CRITICAL FOR RISK OF FIRE AND
ELECTRIC SHOCK. REPLACE ONLY WITH
PART NUMBER SPECIFIED.
PARTS LIST
NOTE:<P>:European model only
<T>: 230V model only for Asia
<D>: 120V model only for Asia
R-805TX

BASS+
BASS-
COM
TREBLE+
TREBLE-
VSS VDD GND CK DATA STB
BASS+
BASS-
COM
TREBLE-
TREBLE+
LADDER RESISTOR
ANALOG SWITCH
13bit LATCH CIRCUIT
LADDER RESISTOR
ANALOG SWITCH
LADDER RESISTOR
ANALOG SWITCH
13bit LATCH CIRCUIT
LADDER RESISTOR
ANALOG SWITCH
20bit SHIFT REGISTER CIRCUIT
LEVEL SHIFT
CODE DETECTING CIRCUIT
1 16 7 8 9 10
2
3
4
5
6
15
14
13
12
11
TC9184AP(ELECTRONIC TONE CONTROL)
Pin No. Symbol Function
1VSS
16 VDD
2/15 BASS+
3/14 BASS-
5/12 TREBLE-
6/11 TREBLE+
4/13 COM
7GND Ground terminal (Digital section)
Clock input terminal.
Clock input receiving data from DATA terminal
Data input terminal.
Input 20bit tone control data by synchronizing to the rise of
CK signals.
Strobe input terminal.
The tone control data received from DATA and CK terminals
are transferred into IC buy turning this terminal to "H" level.
Previous data are kept stored so long as "H" level in not
applied to this terminal.
10
CK
DATA
STB
Volume terminal
Power supply voltage terminals (Analog section)
8
9
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
V SS V DD
GND CK DATA STB
LEVEL SHIFTER+SHIFT REGISTER
CIRCUIT
(R-ch)
10bit
Latch
Circuit
(Same
as L-ch
Circuit)
(L-ch)
10bit
Latch
Circuit
2
3
4
5
6
7
8
9
10
11
12
27
26
25
24
23
22
21
20
19
18
17
13 14 15 16
128
TC9273N-10 (Analog Switch Array)
IC BLOCK DIAGRAMS AND DESCRIPTIONS
Pin No. Symbol Description
1Vss Negative power supply pin
13 GND Digital ground pin
28 VDD Positive power supply pin
2/27 S1
3/26 S2
4/25 S3
5/24 S4
6/23 S5
7/22 S6
8/21 S7
9/20 S8
10/19 S9
11/18 S10
12/17 S11
14 CK Clock input pin for data transfer.
15 DATA Serial data input pin for setting switches.
16 STB Strobe input pin for data writing.
Input/Output pins
R-805TX

1
2
3
5
6
7
8
9
PROTECTOR
REGU-
LATOR
Vss
OUT1
OUT2
IN1 IN2 GND
Vcc Vref
TA7291S(VOLUME MOTOR DRIVER)
IN1
0
1
0
1
IN2 OUT1 OUT2
0STOP
0HLCW/CCW
1 L HCCW/CW
1 L L BRAKE
CCW: Counter-clockwise direction
CW: Clockwise direction
INPUT OUTPUT MODE
STEREO
MIN
MONO PM RDS S T
AM
AUTOTIMER
W.DAY
W.END CD TRACK
a
b
c
d
e
f
g
hj
k
m
n
p
r
10G 9G 8G 7G 6G 5G 4G 3G 2G 1G
10-BT-167GK(FL TUBE)
10G 9G 8G 7G 6G 5G 4G 3G 2G 1G
P1 -a a a a a a a a -
P2 W.DAY j j j j j j j j MUTING
P3 W.END h h h h h h h h MIN
P4 MEMORY k k k k k k k k S.BASS
P5 -b b b b b b b b -
P6 -f f f f f f f f -
P7 -g g g g g g g g -
P8 REC m m m m m m m m MHz
P9 -c c c c c c c c -
P10 -e e e e e e e e -
P11 REPEAT n n n n n n n n kHz
P12 RANDOM r r r r r r r r DIRECT
P13 -p p p p p p p p -
P14 -d d d d d d d d -
P15 TIMER TRACK AUTO MONO AM PM RDS S
P16 CD - - - - Col -TSTEREO
P17 SLEEP - - - - - Dp - -
MUTING
S.BASS
DIRECT
kHz
MHz
REC
SLEEP
MEMORY
REPEAT
RANDOM
:This model is not used.
R-805TX

CD
MD
CDR
LINE/DVD
ENERGY
RDSSCK
8 9
10 11 12 13
+5V
POWER1
SBASS-3 SBASS-2 SBASS-1
FCE/VCE
~POFF
SYSIN
REMIN
IC
SYSOUT
RDSSIG
RDSDATA
+5V
ROTB ROTA
POWER2
SBASS A
14 15 16 17 18 19 20 21 22 23 24
SBASS B
VOLDOWN
VOL UP
INPMUT
DATA
PLLCE
~RESET
CLK
TUMUT
GND
NC
STEREO
SD
NC
SIGNAL
AREA
K1
K0
+5V
+5V
XT1
XT2
GND
X1
X2
FM
AM
TAPE
1 2 3 4 5 6 7
4G 5G 6G 7G 8G 9G
10G
65
66
67
68
69
70
72
73
74
75
76
77
P12
P13
P14
P15
P16
P17
78
79
80
1G
2G
3G
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
71
Vload
P6
P7
P8
P9
P10
P11
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
P5 P4 P3 P2 P1
M
Q405
VOLUME
MOTOR
DRIVER
TA7291S
POWER
AMP. SW
CIRCUIT
Q781
RDS DECODER
BU1923
Q705
BUFFER
POWERSTOPPAGE
DETECTOR
TERMINAL
RI
Q704
REMOTE
SENSOR
S709
INPUT SW
+B
X701
X'TAL
ECO MEMORY
INITIALIZING POWER
FM MODE P.DOWN ACOUSTIC
DISPLAY P-UP
TUNER
UNIT
Q471
TONE CONTROL
TC9184AP
Q702
SYSTEM
RESET
SWITCH
CIRCUIT
Q301
SOURCE SELECTOR
SWITCH TC9273N
Q915
AC OUTLET
SWITCH
AUDIO MUTE
Q703
FL TUBE
MICROPROCESSOR-CONNECTION DIAGRAM
R-805TX