Sharp HT-X1 User manual

HT-X1
SERVICE MANUAL
In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
No. S3529HTX1U///
SHARP CORPORATION
CONTENTS
Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for
maintaining the safety and performance of the set.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications ................................................. 1-1
[2] Names of parts............................................... 1-2
CHAPTER 2. ADJUSTMENTS
[1] TEST Mode .................................................... 2-1
CHAPTER 3. MECHANISM BLOCKS
[1] Caution on diassembly................................... 3-1
CHAPTER 4. DIAGRAMS
[1] Block diagram ................................................ 4-1
CHAPTER 5. CIRCUIT DESCRIPTION
[1] Notes on schematic diagram.......................... 5-1
[2] Types of transistor.......................................... 5-1
[3] Waveforms of circuit....................................... 5-2
[4] Voltage ........................................................... 5-3
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS
LAYOUT
[1] Schematic diagram........................................6-1
[2] Wiring side of PWB...................................... 6-11
[3] DVD PWB Unit ............................................6-18
CHAPTER 7. FLOWCHART
[1] Troubleshooting .............................................7-1
CHAPTER 8. OTHER
[1] Function table of IC .......................................8-1
Parts Guide
HT-X1
MODEL
HOME THEATER WITH DVD
HT-X1 Home Theater with DVD consisting of HT-X1 (main
unit and subwoofer/amplifier unit), CP-X1F (front speakers),
CP-X1C (center speaker) CP-X1S (surround speakers).

HT-X1
– i –
IMPORTANT SERVICE NOTES
BEFORE RETURNING THE AUDIO PRODUCT
BEFORE RETURNING THE AUDIO PRODUCT
(Fire & Shock Hazard)
Before returning the audio product to the user, perform the following
safety checks.
1. Inspect all lead dress to make certain that leads are not pinched or
that hardware is not lodged between the chassis and other metal
parts in the audio product.
2. Inspect all protective devices such as insulating materials, cabinet,
terminal board, adjustment and compartment covers or shields,
mechanical insulators etc.
3. To be sure that no shock hazard exists, check for leakage current in
the following manner.
* Plug the AC line cord directly into a 120 volt AC outlet.
* Using two clip leads, connect a 1.5 kohm, 10 watt resistor paralleled
by a 0.15 µF capacitor in series with all exposed metal cabinet parts
and a known earth ground, such as conduit or electrical ground con-
nected to earth ground.
* Use a VTVM or VOM with 1000 ohm per volt, or higher, sensitivity to
measure the AC voltage drop across the resistor (See diagram).
* Connect the resistor connection to all exposed metal parts having a
return path to the chassis (antenna, metal cabinet, screw heads,
knobs and control shafts, escutcheon, etc.) and measure the AC
voltage drop across the resistor.
All check must be repeated with the AC line cord plug connection
reversed.
Any reading of 0.3 volt RMS (this corresponds to 0.2 milliamp. AC.) or
more is excessive and indicates a potential shock hazard which must
be corrected before returning the audio product to the owner.
1. Employing lead-free solder
" Amp./Power1/Power2/Display/Main/LED/Switch/Headphones/Tuner " of this model employs lead-free solder. The LF symbol indicates
lead-free solder, and is attached on the PWB and service manuals. The alphabetical character following LF shows the type of
Example:
Indicates lead-free solder of tin, silver and copper.
2. Using lead-free wire solder
When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire solder
may cause damage or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 C, we recommend you to use a
dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station
or service branch in your area.
3. Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is about 220 C which is higher than the conventional lead solder by 40 C,
and as it has poor solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of
time. However, Since the land may be peeled off or the maximum heat-resistance temperature of parts may be exceeded,
remove the bit from the PWB as soon as you confirm the steady soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corrected. Make sure to turn on and off the
power of the bit as required.
If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use
of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.
Be careful when replacing parts with polarity indication on the PWB silk.
Lead-free wire solder for servicing
Ref No. DescriptionParts No.
PWB-A DUNTKV550SJ03 Amp./Power1/Power2
PWB-B DUNTKV549SJ03 Display/Main/LED/Switch/Headphones/Tuner
lead-free solder.
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
TEST PROBE
0.15 mF
1.5 kohms
10 W
VTVM
AC SCALE

HT-X1
1 – 1
AudioHT-X1Service ManualHT-X1MarketE
CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications
Main unit
Dimensions Including the stand
Width: 17" (430 mm)
Height: 7-5/8" (192 mm)
Depth: 4" (100 mm)
Excluding the stand
Width: 17" (430 mm)
Height: 6-3/4" (171 mm)
Depth: 3-1/2" (88 mm)
Weight 4.9 lbs. (2.2 kg)
Frequency range FM: 87.5 - 108 MHz
AM: 530 - 1,720 kHz
Video output terminals Video output: RCA type 1
S-video output: S-terminal 1
Component video output: RCA type 3
(Y/PB/PR)
Audio output terminal Headphones: 16 - 50 ohms
(recommended: 32 ohms)
Audio input terminals Audio input (AUX): RCA type 2
Optical digital input: Square type 1
Other terminal System control 2
Signal system NTSC color
Supported disc types DVD (region number 1 or ALL),
DVD-R/RW (video mode),
DVD+R/RW (video mode), audio CD,
CD-R, CD-RW
Video signal Horizontal resolution: 500 lines
S/N ratio: 70 dB
Audio
signal
Frequency
characteris-
tics
Linear PCM DVD:
4 Hz to 22 kHz (sampling rate: 48 kHz)
4 Hz to 44 kHz (sampling rate: 96 kHz)
CD: 4 Hz to 20 kHz
S/N ratio CD:96dB(1kHz)
Dynamic
range
Linear PCM DVD: 95 dB
CD: 94 dB
Total har-
monic distor-
tion ratio
0.006 % maximum
Type Full range system (magnetic shield)
3-1/8" (8 cm) speaker 1
Maximum input power 100 W
Rated input power 50 W
Impedance 4 ohms
Dimensions Width: 4-1/8" (105 mm)
Height: 8-1/8" (205 mm)
Depth: 4-1/8" (105 mm)
Weight 2.0 lbs. (0.9 kg)/each
CP-X1F
CP-X1S
CP-X1C
HT-X1
Type Full range system
3-1/8" (8 cm) speaker 1
Maximum input power 100 W
Rated input power 50 W
Impedance 4 ohms
Dimensions Width: 4-1/8" (105 mm)
Height: 8-1/8" (205 mm)
Depth: 4-1/8" (105 mm)
Weight 1.7 lbs. (0.75 kg)/each
Type Full range system (magnetic shield)
3-1/8" (8 cm) speaker 1
Maximum input power 100 W
Rated input power 50 W
Impedance 4 ohms
Dimensions Width: 7-1/4" (185 mm)
Height: 4-7/8" (123 mm)
Depth: 4-1/2" (115 mm)
Weight 2.0 lbs. (0.9 kg)
Subwoofer/amplifier unit
Amplifier:
Subwoofer:
Power source AC 120 V, 60 Hz
Power consumption 208 W
Dimensions Width: 7-7/8" (200 mm)
Height: 15" (380 mm)
Depth: 17-1/2" (443 mm)
Weight 23.2 lbs. (10.5 kg)
Speaker terminals Front speakers, center speaker and
surround speakers: more than 4 ohms
Other terminals System control 2
Power output (FTC) 50 watts minimum RMS per channel
into 4 ohms from 150 Hz to 20 kHz,
10% total harmonic distortion
Subwoofer:
50 watts minimum RMS into 4 ohms
from 20 Hz to 150 Hz, 10% total
harmonic distortion
Rated power output Front: 50 W + 50 W, Center: 50 W,
Surround: 50 W + 50 W
(4 ohms at 1 kHz, 10 % T.H.D.)
Subwoofer: 50 W
(4 ohms at 100 Hz, 10 % T.H.D.)
Type Bass reflex, 1 way system
6-1/2" (16 cm) woofer 1
Maximum input power 100 W
Rated input power 50 W
Impedance 4 ohms
Specifications for this model are subject to change without
prior notice.
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.

HT-X1
1 – 2
[2] Names of parts
Top and front panel
1. Disc Eject Button
2. Stop Button
3. Play Button
4. Chapter (Track) Skip Down or Fast Reverse Button
5. Chapter (Track) Skip Up or Fast Forward Button
6. Function Selector Button
7. Tuner (Band) Button
8. On/Stand-by Button
9. Disc Compartment
10. Main Unit Stand
11. Remote Sensor
12. Volume Control
13. Headphone Jack
Rear panel
1. FM 75 Ohm Antenna Jack
2. Antenna Ground Terminal
3. AM Antenna Terminal
4. Auxiliary (Audio Signal) Input Jacks
5. Component Video Output Jacks
6. S-video Output Jack
7. Video Output Jack
8. System Connection Jacks
(to subwoofer/amplifier unit)
9. Optical Digital Audio Input Jack
1 2 3 4 5 6 7 8
12
11
9
10
13
11
Display
21 34 5 76 8 9
Removing the back cover of
the main unit:
For system connections, remove
the back cover first.
1
2
Display
1. Program Indicator
2. Random Play Indicator
3. Repeat/One Track Repeat/A - B Repeat Indicators
4. 2 channel Stereo Sound Mode Indicator
5. Multi Channel Sound Mode Indicator
6. PCM Signal Indicator
7. DTS Signal Indicator
8. Dolby Digital Signal Indicator
9. Dolby Pro Logic Indicator
10. Audio Signal/Speaker Indicators
11. Track Indicator
12. Chapter Indicator
13. Title Indicator
14. Pause Indicator
15. Play Indicator
16. Total Indicator
17. Angle Indicator
18. FM Stereo Mode Indicator
19. FM Stereo Receiving Indicator
20. Sleep Indicator
1
2
3
45
10
9
6
11
12
18 19 20
13
7
8
15
16
17
14
HT-X1

HT-X1
1 – 3
Remote control
1. Remote Control Transmitter
2. Direct Number Buttons
3. On/Stand-by Button
4. Sleep Button
5. Clear Button
6. Random or Program Button
7.A-BRepeat or Repeat Button
8. Unit Display Select or Dimmer Button
9. On Screen Display On/Off Button
10. Top Menu or Menu Button
11. Chapter (Track) Skip Down or Fast Reverse Button
12. Disc Eject Button
13. Multi Channel Select Button
14. Return Button
15. Stereo (2 channel) Select Button
16. Chapter (Track) Skip Up or Fast Forward Button
17. Angle Button
18. DVD Audio Language Select or
CD Audio Output Select Button
19. Gamma Button
20. Direct Button
21. Subtitle Button
22. Super Picture Button
23. Zoom Button
24. Progressive Scan Mode Select Button
25. Tuner Preset Down or Cursor Button
26. Tuning Up or Cursor Button
27. Tuner Preset Up or Cursor Button
28. Tuning Down or Cursor Button
29. Enter Button
1
3
13
4
5
6
7
8
9
11
2
15
16
14
12
10
17
18
19
20
21
23
24
22
27
28 29
2625
Remote control
1. Mute Button
2. Tuner (Band) Button
3. Auxiliary Button
4. Frame Advance or Pause Button
5. DVD Initial Setting Button
6. Amplifier Initial Setting Button
7. Shift Button
8. Volume Up and Down Buttons
9. Play Button
10. Stop Button
4
3
5
6
7
8
9
10
1
2
TV Operation Buttons
You can operate some functions of SHARP's TVs with the remote
control of this system.
However, some models cannot be operated.
TV Channel Up Button TV Channel Down Button
Switches the TV channel up. Switches the TV channel
down.
TV On/Stand-by Button TV Volume Up Button
Sets the TV power to "ON" or
"STAND-BY".
Turns up the TV volume.
TV/VCR Input Select Button TV Volume Down Button
Switches the input to TV or
VCR.
Turns down the TV volume.
1
2
3
4
5
6
HT-X1

HT-X1
1 – 4
1. Speaker
2. Speaker Stand
3. Speaker Terminals
4. Color Label
1. Speaker
2. Speaker Stand
3. Speaker Terminals
4. Color Label: Green
Subwoofer/amplifier unit
1. Bass Reflex Duct
2. Woofer
3. Cooling Fan
4. AC Power Input Jack
5. System Connection Jacks (to main unit)
6. Speaker Terminals
1
1
2
1
2
4
35
6
2
4
3
3
4
White ... Left Front Speaker
Red ... Right Front Speaker
Blue ... Left Surround Speaker
Gray ... Right Surround Speaker
CP-X1F/CP-X1S
CP-X1C
HT-X1

HT-X1
2 – 1
AudioHT-X1Service ManualHT-X1MarketE
CHAPTER 2. ADJUSTMENTS
[1] TEST Mode
1. TUNER TEST (Tuner button + Stop button + Power
button)
1.1. INITIAL SETTINGS:
VOLUME = 20
FUNCTION = FM ST 87.50MHz (P-01)
1.2. PRESET STATIONS:
P-01: FM ST 87.50 MHz
P-02: FM ST 108.00 MHz
P-03: FM ST 98.00 MHz
P-04: FM ST 90.00 MHz
P-05: FM ST 106.00 MHz
P-06: AM 522 KHz
P-07: AM 1620 KHz
P-08: AM 990 KHz
P-09: AM 603 KHz
P-10: AM 1404 Hz
P-36: FM MONO 106.00 MHz
P-37: FM MONO 90.00 MHz
P-38: FM MONO 98.00 MHz
P-39: FM MONO 108.00 MHz
P-40: FM MONO 87.50 MHz
1.3. WHEN SYSTEM ENTER TUNER TEST MODE, BELOW
FOUR BUTTONS ON MAIN UNIT WILL CHANGE TO OTHER
FUNCTIONS TEMPORARILY
“STOP” BUTTON: TUNING DOW
“PLAY” BUTTON: TUNING UP
“SKIP DOWN” BUTTON: TUNER PRESET DOWN
“SKIP UP” BUTTON: TUNER PRESET UP
2. VOLUME TEST (SKIP Down button + STOP button
+ POWER button)
2.1. INITIAL SETTINGS:
VOLUME = 23
FUNCTION = AUX DIGITAL
FM ST FREQUENCY = 87.50MHz
FM MONO FREQUENCY = 87.50MHz
AM FREQUENCY = 522KHz
VOLUME 0 >> VOLUME 1 >> VOLUME 23 >> VOLUME 40 >> VOL-
UME MAX
3. KEY TEST (SKIP Up button + PLAY button +
POWER button)
3.1. PRESS EACH BUTTON OF MAIN UNIT EXCEPT “ON/
STAND-BY” BUTTON, AND THEN PRESS “ON/STAND-BY”
BUTTON.
KEY OK: “OK” SHOWN ON VFD
KEY NG: “ERROR”SHOWN ON VFD
4. VFD TEST (“SKIP Up button” + “STOP button” +
“POWER button”)
BACK LIGHT LED = ON
USE “SKIP UP” BUTTON TO CHANGE VFD DISPLAY MODE AND
BACK LIGHT LED MODE
5. SLOT-IN MECHA TEST (“EJECT button” + “FUNC-
TION button” + “POWER button”)
VFD DISPLAY TEST CYCLE NUMBER
DISC LOAD ERROR: “EL xx” (xx MEANS TEST CYCLE NUMBER)
DISC EJECT ERROR: “EE xx” (xx MEANS TEST CYCLE NUMBER)
First, the ALL_MUTE_OFF_TEST key code is sent to AMP to start it up
with all mute controls disabled.
6. DVD RESTORE (“PLAY button” + “FUNCTION but-
ton” + “POWER button”)
DVD SETUP SETTINGS RESTORED
AMP SETUP SETTINGS RESTORED
SOUND MODE SETTINGS RESTORED
ERRASE ALL OF CONTENTS OF PROGRAM PLAYBACK LIST
SHOW DVD ROM DATA VERSION NUMBER ON BOTH VFD AND
MONITOR
7. SYSTEM RESTORE (“STOP” button + “FUNC-
TION” button + “POWER” button)
ERRASE ALL OF CONTENTS OF TUNER MEMORY
RESET TUNER PRESET FLAG
SET INITIAL VOLUME TO 20
SET INITIAL FUNCTION TO DVD/CD
SET FM ST FREQUENCY TO 87.50MHz
SET FM MONO FREQUENCY TO 87.50MHz
SET AM FREQUENCY TO 522KHz
SHOW SYSTEM SOFTWARE VERSION ON VFD

HT-X1
3 – 1
AudioHT-X1Service ManualHT-X1MarketE
CHAPTER 3. MECHANISM BLOCKS
[1] Caution on diassembly
Caution on Disassembly
Follow the below-mentioned notes when disassembling the unit and reassembling it, to keep it safe and ensure excellent performance:
1. Take cassette tape, and compact disc out of the unit.
2. Be sure to remove the power supply plug from the wall outlet before starting to disassemble the unit.
3. Take off nylon bands or wire holders where they need to be removed when disassembling the unit. After servicing the unit, be sure to rearrange
the leads where they were before disassembling.
(B3)x1
(A2)x6
M3x12mm
(A4)x5
M3x6mm
(A4)x2
M2.5x10mm
(A6)x1
M2x3mm
(A1)x1
Rear Panel Front Panel
Center Panel
Front Panel
Center Panel
1 Rear Panel with 1. Terminal Cover ....... (A1) x1
2. Screw .................... (A2) x6Main/Tuner
4. Screw ................... (A4) x15
5. Socket ...................... (A5) x1
PWB
DVD Servo PWB/
DVD Mechanism
6. Screw ...................... (A6) x3
7. Shield Box A ........... (A7) x1
8. Shield Box B ........... (A8) x1
2
2. Screw
3. Shield ...................... (B3) x1
6. Screw ...................... (B6) x2
8. Screw ...................... (B8) x4
7. Pickup Cover............ (B7) x1
4. Flat Cable ............... (B4) x2
1. Screw ...................... (B1) x2
......................(B2) x4
5. Socket ..................... (B5) x2
4. Socket ..................... (C4) x3
3. Socket ..................... (A3) x7
3 Front Panel with
Display/
Headphone/
Switch/LED PWB
1. Knob ...................... (C1) x1
2. Nut .......................... (C2) x1
3. Screw ...................... (C3) x6
5. Screw ...................... (C5) x2
6. Screw ...................... (C6) x4
7. Screw ...................... (C7) x1
STEP REMOVAL PROCEDURE
HT-X1 (DVD Unit)
(A4)x4
M3x10mm
(A3)x3
Main PWB
Rear Panel
Tuner PWB
(A3)x3
(A8)x1
(A3)x1
(A5)x1
(A7)x1
(A6)x1
M2x3mm
Lug Wire (A6)x1
M2x3mm
(A4)x4
M3x10mm
Center Panel with
(B2)x4
M3x8mm
DVD Servo
PWB
DVD Servo
PWB Pull
Pull
DVD Mechanism
Unit
(B5)x2
(B7)x1
(B4)x1
(B4)x1
(B6)x2
M2.5x10mm
(B1)x2
M3x10mm
(B8)x4
M3x8mm
Display PWB
Unit

HT-X1
3 – 2
Display PWB
Headphone PWB LED PWB
(C5)x2
M2.5x8mm
(C7)x1
M3x6mm
(C3)x6
M2.5x8mm
(C4)x1 (C4)x1
(C4)x1
(C1)x1
(C2)x1
Washer
Front Panel
(C6)x4
M2.5x8mm
Switch PWB
Front Panel

HT-X1
3 – 3
(A1)x6
M4x16mm
(A1)x3
M3x12mm
Subwoofer Box
Rear Cabinet
1 Rear Cabinet 1. Screw ...................... (A1) x9
2 1. Screw ...................... (B1) x7
.................... (B2) x1
2. Socket
3. It pulls out to the front.
3 Power1 PWB 1. Screw ...................... (C1) x6
2. Socket ...................... (C2) x7
4 Amp./Power2
PWB
1. Screw .................... (D1) x13
2. Bracket ................... (D2) x2
3. Socket ..................... (D3) x1
STEP REMOVAL PROCEDURE
HT-X1 (Subwoofer Unit)
Amp. Unit
(B2)x1 Power1 PWB
(B1)x3
M4x16mm
(B1)x4
M4x28mm
Suboofer Box
(C2 )x1
(C2 )x1
(C2)x1
Amp. PWB
Power1 PWB
Power2 PWB
(C1)x6
M3x6mm
(C2)x2
(C2)x2
(D3)x1
(D1)x3
M3x6mm
(D1)x2
M3x6mm (D1)x2
M3x6mm
Amp. PWB
Power2 PWB
(D1)x6
M3x6mm
(D2)x1
(D2)x1

HT-X1
3 – 4
—— MEMO ——

HT-X1
4 – 1
AudioHT-X1Service ManualHT-X1MarketE
CHAPTER 4. DIAGRAMS
[1] Block diagram
Q103
CNP402B
CNP402A
D102
Q102
Q101
F102
6.3A/125V 6.3A/125V
ZD102 ZD101
IC104
NJM4558D
F101
CNP202
D101
CNS402A FROM
POWER1 PWB
CNS402B
FROM
POWER1 PWB
FROM
MAIN POWER TRANSFORMER
CNS202
C/SW
IC101
POWER AMP.
LM4732TA
34
5
6
7
12
8
IC104
BUFFER
AMP.
Figure 4-1 BLOCK DIAGRAM (1/8)

HT-X1
4 – 2
CNP401
F101
6.3A/125V
R
MER
IC103
POWER AMP.
LM4732TA
CNS401
FROM
POWER1 PWB
FL/FR
IC102
POWER AMP.
LM4732TA
SL/SR
Figure 4-2 BLOCK DIAGRAM (2/8)

HT-X1
4 – 3
RLY402
RLY401
D432
D435
Q447
Q443
D459
D458
D457
D456
D442
D443
D440
D441
D455
D454
D453
D452
BI402
CNP402
TO
AMP.PWB
BI401
2345678910
1
Q455
Q450
Q451
Q452
ZD424
Q453
Q459
Q457
Q454
Q456
D434
Q448
D433
Q446
S102B
13
12
11
10
9
8
7
6
5
4
3
2
1
Q458
IC407
TCD4094B
D216
IC203
AN78L
0
VOLTAGE RE
G
3
2
1
3
2
IC406
NJM4558D
Q412
IC405
NJM4558D
IC404 IC404
BUFFER
IC405
BUFFER
IC406
BUFFER
NJM4558D
Q403
Q407
Q404
Q408
Q409
D426
D425
Q414
D410
Q413
Q434
Q435
ZD423
Q429
D42
2
S101B
S101A
TO
MAIN PWB
13
12
11
10
9
8
7
6
5
4
3
2
1
3
1
2
4 3 2 1
5 6 7 8
4 3 2 1
5 6 7 8
4 3 2 1
5 6 7 8
1716151413 12 1110
1 2 3 4 5 6 7 8
IC2
0
S101A
TO
MAIN PWB
CNP401
TO
AMP.PWB
Figure 4-3 BLOCK DIAGRAM (3/8)

HT-X1
4 – 4
-
-
-
-
+
+
+
+
-
+
AC SOCKET
+
-
+
+
+
+
-
-
-
-
RLY402
RLY401
D432
D435
Q447
Q443
ZD425
D431
Q445
Q444 D429
BI401
2345678910
1
D437
D436
D221
D434
Q448
D433
Q446
T201
POWER TRANSFORMER
CNP203
BI203
CNS201
CNP201
CNP205
3
2
1
D427A
M
M402
M
M401
BI205
3
2
1
Q439A
Q438A
Q437A
Q436A
Q433
Q432
Q437
D427
Q438
Q439
Q436
D216
IC203
AN78L05
VOLTAGE REGULATOR
3
2
1
T202
SUB POWER
TRANSFORMER
D209
LF201
LINE FILTER
S0202
RLY400
Q203
D218
D219 D220
D217
ZD201
CNP204
CNS202
TO
AMP PWB
CNS204
IC201
KIA7805API
VOLTAGE
REGULATOR
3
2
1
IC202
KIA7812API
VOLTAGE
REGULATOR
3
2
1
ZD202
D210
D211
Q201
D208
D207
D205
F201
2A/125V
D206
D212
D411
Q416
Q415
SO401
CNP206
D426
D425
D424
1N4004
RLY403
Q413
Q434
Q435
ZD423
D416
D419
D420
D417
D418
D421
Q430
Q429
D422
2
1
3
2
1
3
IC201
CNS202
AC POWER
SUPPLY CORD
AC 120 V,
60 Hz
CNP401
TO
AMP.PWB
Figure 4-4 BLOCK DIAGRAM (4/8)

HT-X1
4 – 5
CFW9
SW700
JOG VOLUME
D706B
D706A
D707 1N4148
CNW702
TO
MAIN PWB
BI301
CNW704
LED702 LPBB73V1
CNW707 CNP707
Q702
Q701
X701
D708
L704
D706
CNW703
L702
X702
IC701
0058SJ
SYSTEM MICROCOMPUT
E
D701
TO
MAIN PWB
TO
DVD SERVO
PWB
TO
TUNER PWB
Figure 4-5 BLOCK DIAGRAM (5/8)

HT-X1
4 – 6
CFW6
CFW9
6
B
CNP706
FROM
DVD MECHIANISM
CNP705
CNW705
L706
L701
RX701
GP1UD261
321
CNP609
CNW609
RX702
GP1UD261
3
21
Q506
Q510
Q507
Q509
Q505 Q508
VFD701
FL DISPLAY
Q704
D702
D703
L705
L703
O
MPUTER
ZD701
D704
Q703
Q709
D705
SW701
SW708
SW704 SW707
SW706
SW705
SW703
SW702
Figure 4-6 BLOCK DIAGRAM (6/8)

HT-X1
4 – 7
NC
CL VDD
VREF
ROUT
RBS
RTRE
RIN
RSL0
R4 R3 R2 R1 L1
L2 L3
L4
LSL0
LIN
LTRE
LOUT
VSS
CE
DI
LBS
AUX L
D509
CNW302
FROM
TUNER PWB
Q501
S101A
TO
POWER1 PWB
13
12
11
10
9
8
7
6
5
4
3
2
1
IC501
KIA7812API
3
3
2
2
1
1
Q502
D508
IC504
NJM4558D
IC512
NJM4558D
IC507
CD4053M
IC505
LC75341M
TO
DVD SERVO PWB
BI501
IC503
LM2576T
D505
IC502
KIA7805API
D506
D507
L501
S102A
13
12
11
10
9
8
7
6
5
4
3
2
1
L502
CNW508A CNW508B
CNP702
FROM
DISPLAY PWB
TO
POWER1 PWB
IC509
NJM14558
IC508
NJM14558
IC406
NJM14558
Figure 4-7 BLOCK DIAGRAM (7/8)

HT-X1
4 – 8
DI
CL
TUN L
TUN R
CE
L513A
L513B
CFW5
D512
D511
9
L5A1
D503
D504
BI503
TO
DVD SERVO PWB
10
9
8
7
6
5
4
3
2
1
Q5A3
Q5A4
IC511
KIA7805API
1
2
3
Q503
BI506
BI502
S501
L506
L507
L503
S503
32 1
CNP704
FROM
DISPLAY PWB
FROM
DVD SERVO PWB
Q518
Q517
IC510
NJM4558D
S504
L508
Q504
Q522
Q521
TO
DVD SERVO PWB
S505
COMPONENT
VIDEO OUT
Figure 4-8 BLOCK DIAGRAM (8/8)

HT-X1
4 – 9
NC
NC NC
PD
FM FM MUTE
VSM
AM RF
PHASE
PHASE IF OUT STEREO SD
GND
AM IF REG AM MIX FM DET
OUT
OUT
VCC
OUT OUT
IN
IN
IN
CUT
AM LOW
FM/AM
IN
MPX VCO
MPX IN
OUT
MO/ST
L-CH
FM AFC
AM OSC
AM OSC
CE DI CL
FM IF
DO MO/ST
R-CH
IF REQ
I
FIN
VDD
AIN
AOUT
VSS
XOUTXIN FM IN
AM IN
AM ANTENNA
TERMINAL
FM ANTENNA
TERMINAL
D303 1N4148
D304
1N4148
Q301
2SC380 O
CF302
IC301
NSA003SJ
FM FRONT END
IC301
CF352
T302
T351
AM IF
SO302
IC302
IC302
TUNER
(PLL)
LC72131
VD301
SVC348S
T306
X351
456 KHz
VR351
L301
D301 1N4148
D302 1N4148
L353
1mH
IC303
IC303
FM IF DET. /FM MPX./AM IF
LA1832S
CF351
L342
L354
CF303
L351
100uH
X352
4.5 MHz
SO301
Figure 4-9 BLOCK DIAGRAM (8/10)