Pioneer HTP-072 User manual

ORDER NO.
PIONEER CORPORATION 1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, Japan
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION
2013
2013 Printed in Japan
Center
SurroundFront
HTP-072
RRV4432
HTP-072 and HTP-073 is a Home Cinema Package and consists of VSX-324-K-P, S-22W-P and S-11A-P.
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
HTP-072 CMXESM AC 120 V
HTP-072 YXE8 AC 220 V to 230 V
HTP-072, HTP-073 VYXE8 AC 220 V to 230 V
HTP-072 DLXE AC 110 V to 127 V/220 V to 240 V
HTP-072 PWXE AC 220 V to 230 V
HTP-072 AXQ5 AC 220 V
VSX-324-K-P CMXESM AC 120 V
VSX-324-K-P YXE8 AC 220 V to 230 V
VSX-324-K-P VYXE8 AC 220 V to 230 V
VSX-324-K-P DLXE AC 110 V to 127 V/220 V to 240 V
VSX-324-K-P PWXE AC 220 V to 230 V
VSX-324-K-P AXQ5 AC 220 V
————— —————
————— —————
S-22W-P
S-11A-P
Type Power Requirement Remarks
AV Receiver
Home Cinema Package
Home Theater Package
VSX-324-K-P
HTP-073
HTP-072
Subwoofer
S-22W-P
Speaker System
S-11A-P
K-MZVMAY

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SAFETY INFORMATION
WARNING
This product may contain a chemical known to the State of California to cause cancer, or birth defects or other reproductive
harm.
Health & Safety Code Section 25249.6 - Proposition 65
This service manual is intended for qualified service technicians; it is not meant for the casual do-it-
yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained
to properly and safely repair complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may
void the warranty. If you are not qualified to perform the repair of this product properly and safely, you
should not risk trying to do so and refer the repair to a qualified service technician.
1. SAFETY PRECAUTIONS
The following check should be performed for the
continued protection of the customer and service
technician.
LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground
(water pipe, conduit, etc.) by connecting a leakage
current tester such as Simpson Model 229-2 or
equivalent between the earth ground and all exposed
metal parts of the appliance (input/output terminals,
screwheads, metal overlays, control shaft, etc.). Plug
the AC line cord of the appliance directly into a 120 V
AC 60 Hz outlet and turn the AC power switch on. Any
current measured must not exceed 0.5 mA.
ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL
SHOCK HAZARD AND MUST BE CORRECTED BEFORE
RETURNING THE APPLIANCE TO THE CUSTOMER.
2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appliance
have special safety related characteristics. These are
often not evident from visual inspection nor the protection
afforded by them necessarily can be obtained by using
replacement components rated for voltage, wattage, etc.
Replacement parts which have these special safety
characteristics are identified in this Service Manual.
Electrical components having such features are
identified by marking with a >on the schematics and on
the parts list in this Service Manual.
The use of a substitute replacement component which
does not have the same safety characteristics as the
PIONEER recommended replacement one, shown in the
parts list in this Service Manual, may create shock, fire,
or other hazards.
Product Safety is continuously under review and new
instructions are issued from time to time. For the latest
information, always consult the current PIONEER Service
Manual. A subscription to, or additional copies of,
PIONEER Service Manual may be obtained at a nominal
charge from PIONEER.
Leakage
current
tester
Reading should
not be above
0.5 mA
Device
under
test
Test all
exposed metal
surfaces
Also test with
plug reversed
(Using AC adapter
plug as required)
Earth
ground
AC Leakage Test
(FOR USA MODEL ONLY)

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CONTENTS
SAFETY INFORMATION.......................................................................................................................................................... 2
1. SERVICE PRECAUTIONS.................................................................................................................................................... 4
1.1 NOTES ON SOLDERING ............................................................................................................................................... 4
1.2 NOTES ON REPLACING PARTS ................................................................................................................................... 4
1.3 SERVICE NOTICE.......................................................................................................................................................... 4
2. SPECIFICATIONS................................................................................................................................................................. 5
3. BASIC ITEMS FOR SERVICE .............................................................................................................................................. 7
3.1 CHECK POINTS AFTER SERVICING ...........................................................................................................................7
3.2 JIGS LIST ....................................................................................................................................................................... 7
3.3 PCB LOCATIONS ........................................................................................................................................................... 8
4. BLOCK DIAGRAM .............................................................................................................................................................. 10
4.1 OVERALL WIRING DIAGRAM ..................................................................................................................................... 10
4.2 OVERALL BLOCK DIAGRAM....................................................................................................................................... 12
4.3 VCC BLOCK DIAGRAM ............................................................................................................................................... 14
4.4 GND BLOCK DIAGRAM ............................................................................................................................................... 16
5. DIAGNOSIS ........................................................................................................................................................................ 18
5.1 TROUBLESHOOTING.................................................................................................................................................. 18
5.2 PROTECTION CIRCUIT............................................................................................................................................... 23
5.3 IC INFORMATION ........................................................................................................................................................ 24
6. SERVICE MODE................................................................................................................................................................. 27
7. DISASSEMBLY ................................................................................................................................................................... 31
7.1 VSX-324-K-P ................................................................................................................................................................ 31
7.2 S-22W-P ....................................................................................................................................................................... 35
7.3 S-11A-P ........................................................................................................................................................................ 36
8. EACH SETTING AND ADJUSTMENT ................................................................................................................................ 37
8.1 UPDATING OF THE FIRMWARE ................................................................................................................................. 37
9. EXPLODED VIEWS AND PARTS LIST............................................................................................................................... 42
9.1 PACKING SECTION ..................................................................................................................................................... 42
9.2 VSX-324-K-P ................................................................................................................................................................ 44
9.3 S-22W-P ....................................................................................................................................................................... 47
9.4 S-11A-P ........................................................................................................................................................................ 48
10. SCHEMATIC DIAGRAM.................................................................................................................................................... 50
10.1 MAIN ASSY (1/3)........................................................................................................................................................ 50
10.2 MAIN ASSY (2/3)........................................................................................................................................................ 52
10.3 MAIN ASSY (3/3)........................................................................................................................................................ 54
10.4 OPTCO ASSY ............................................................................................................................................................ 55
10.5 D-MAIN ASSY (1/3) .................................................................................................................................................... 56
10.6 D-MAIN ASSY (2/3) .................................................................................................................................................... 58
10.7 D-MAIN ASSY (3/3) .................................................................................................................................................... 60
10.8AMP6 ASSY ............................................................................................................................................................... 62
10.9 CPU ASSY.................................................................................................................................................................. 64
10.10 FRONT, INSEL, HP and FUSB ASSYS .................................................................................................................... 66
10.11 CNT ASSY................................................................................................................................................................ 68
10.12 STBY and V_SEL ASSYS ........................................................................................................................................ 70
10.13 S-11A-P .................................................................................................................................................................... 72
11. PCB CONNECTION DIAGRAM ........................................................................................................................................ 74
11.1 MAIN and OPTCO ASSYS ......................................................................................................................................... 74
11.2 D-MAIN ASSY ............................................................................................................................................................ 78
11.3 AMP6 ASSY ............................................................................................................................................................... 82
11.4 CPU ASSY.................................................................................................................................................................. 84
11.5 FRONT, INSEL, HP and FUSB ASSYS...................................................................................................................... 86
11.6 CNT ASSY.................................................................................................................................................................. 88
11.7 STBY ASSY................................................................................................................................................................ 89
11.8V_SEL, G-L, G-T and G-CNT ASSYS........................................................................................................................ 90
12. PCB PARTS LIST.............................................................................................................................................................. 91

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1. SERVICE PRECAUTIONS
1.1 NOTES ON SOLDERING
1.2 NOTES ON REPLACING PARTS
1.3 SERVICE NOTICE
• For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit.
Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs
accompanied by reworking of soldering.
• Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 ºC.
Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 ºC in general, although
the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of
the soldering iron.
Do NOT use a soldering iron whose tip temperature cannot be controlled.
Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting
temperatures (hard to melt/easy to harden).
The following lead-free solders are available as service parts:
• Parts numbers of lead-free solder:
GYP1006 1.0 in dia.
GYP1007 0.6 in dia.
GYP1008 0.3 in dia.
The part listed below is difficult to replace as a discrete component part.
When the part listed in the table is defective, replace whole Assy.
Assy Name
D-MAINAssy
INTERFACE IC —————— IC with heat-padIC2012
D-MAIN1.2 V Power Supply IC —————— IC with heat-padIC2013
D-MAIN1.8 V Power Supply IC —————— IC with heat-padIC2015
DSP IC —————— IC with heat-padIC2016
Low Dropout Power Supply IC —————— IC with heat-padIC2017
APPLE AUTHENTICATIONIC —————— IC with heat-padIC2020
D-MAIN5 V Power Supply IC J126780500450-IL IC with heat-padIC2211
D-MAIN3.3 V Power Supply IC —————— IC with heat-padIC2213
D-MAIN5 V Power Supply IC —————— IC with heat-padIC2214
ADJUSTABLE LDO REGULATOR J126238700010-IL IC with heat-padIC400
Parts that is Difficult to Replace
Ref No. Function Part No. Remarks
• Discharging
For more detail, please refer to "7. DISASSEMBLY - 1. Discharging".

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2. SPECIFICATIONS
[VSX-324-K-P]
Amplifier section
(CMXESM only)
Continuous average power output of 60 watts* per channel, min., at
8 ohms, from 40 Hz to 20 000 Hz with no more than 0.2 %** total
harmonic distortion.
Front (stereo) ............................................................60 W + 60 W
Rated power output
Front, Center, Surround....100 W per channel (1 kHz, 6 Ω, 0.7 %)
Guaranteed speaker impedance ....................................6 Ωto 16 Ω
Audio section
(CMXESM)
Input (Sensitivity/Impedance)
LINE........................................................................ 200 mV/47 kΩ
Output (Level/Impedance)
REC....................................................................... 200 mV/2.2 kΩ
Signal-to-Noise Ratio (IHF, short circuited, A network)
LINE......................................................................................98 dB
* Measured pursuant to the Federal Trade Commission’s Trade
Regulation rule on Power Output Claims for Amplifiers
** Measured by Audio Spectrum Analyzer
(YXE8, VYXE8, PWXE)
Rated power output (Front, Center, Surround)
.........................................100 W per channel (1 kHz, 6 Ω, 0.7 %)
Total Harmonic Distortion ........0.06 % (20 Hz to 20 kHz, 8 W, 50 W/ch)
Frequency response (LINE Pure Direct mode) ... 10 Hz to 70 kHz dB
Guaranteed speaker impedance ....................................6 Ωto 16 Ω
Input (Sensitivity/Impedance)
LINE........................................................................ 200 mV/47 kΩ
Output (Level/Impedance)
REC....................................................................... 200 mV/2.2 kΩ
Signal-to-Noise Ratio (IHF, short circuited, A network)
LINE......................................................................................98 dB
(DLXE)
Rated power output (Front, Center, Surround)
.........................................100 W per channel (1 kHz, 6 Ω, 0.7 %)
Maximum power output (Front, Center, Surround)
..........................................120 W per channel (1 kHz, 6 Ω, 10 %)
Total Harmonic Distortion ........0.06 % (20 Hz to 20 kHz, 8 W, 50 W/ch)
Frequency response (LINE Pure Direct mode) ... 10 Hz to 70 kHz dB
Guaranteed speaker impedance ....................................6 Ωto 16 Ω
Input (Sensitivity/Impedance)
LINE........................................................................ 200 mV/47 kΩ
Output (Level/Impedance)
REC....................................................................... 200 mV/2.2 kΩ
Signal-to-Noise Ratio (IHF, short circuited, A network)
LINE......................................................................................98 dB
(AXQ5)
Rated power output (Front, Center, Surround)
...........................................90 W per channel (1 kHz, 6 Ω, 0.7 %)
Maximum power output (Front, Center, Surround)
..........................................110 W per channel (1 kHz, 6 Ω, 10 %)
Guaranteed speaker impedance ....................................6 Ωto 16 Ω
Video section
Signal level
Composite ................................................................1 Vp-p (75 Ω)
Tuner section
(CMXESM)
Frequency Range (FM) .................................87.5 MHz to 108 MHz
Antenna Input (FM)............................................... 75 Ωunbalanced
Frequency Range (AM) .................................530 kHz to 1 700 kHz
Antenna (AM) ............................................................ Loop antenna
(YXE8, VYXE8, PWXE)
Frequency Range (FM) .................................87.5 MHz to 108 MHz
Antenna Input (FM)............................................... 75 Ωunbalanced
Frequency Range (AM) ..................................531 kHz to 1602 kHz
Antenna (AM) ............................................................ Loop antenna
(DLXE, AXQ5)
Frequency Range (FM) .................................87.5 MHz to 108 MHz
Antenna Input (FM)............................................... 75 Ωunbalanced
Frequency Range (AM)
9 kHz step.....................................................531 kHz to 1602 kHz
10 kHz step...................................................530 kHz to 1700 kHz
Antenna (AM) ............................................................ Loop antenna
Digital In/Out section
HDMI terminal .......................................................... Type A (19-pin)
HDMI output type........................................................... 5 V, 100 mA
USB (iPod) terminal................ USB2.0 Full Speed (Type A) 5 V, 1 A
Miscellaneous
(CMXESM)
Power Requirements .............................................. AC 120 V, 60 Hz
Power Consumption ............................................................... 185 W
In standby........................................................................... 0.45 W
Dimensions................... 435 mm (W) x 168 mm (H) x 362.5 mm (D)
171/8 in. (W) x 65/8 in. (H) x 145/16 in. (D)
Weight (without package) .....................................7.5 kg (16 lb 9 oz)
(YXE8, VYXE8, PWXE)
Power Requirements ......................AC 220 V to 230 V, 50 Hz/60 Hz
Power Consumption ............................................................... 185 W
In standby........................................................................... 0.45 W
Dimensions................... 435 mm (W) x 168 mm (H) x 362.5 mm (D)
Weight (without package) ........................................................7.5 kg
(DLXE)
Power Requirements ...AC 110 V to 127 V/220 V to 240 V, 50 Hz/60 Hz
Power Consumption ............................................................... 195 W
In standby.............................................................................. 0.45 W
Dimensions................... 435 mm (W) x 168 mm (H) x 362.5 mm (D)
Weight (without package) ........................................................7.5 kg
(AXQ5)
Power Requirements ....................................AC 220 V, 50 Hz/60 Hz
Power Consumption ............................................................... 185 W
In standby........................................................................... 0.45 W
Dimensions................... 435 mm (W) x 168 mm (H) x 362.5 mm (D)
Weight (without package) ........................................................7.5 kg
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Accessories
Remote control (AXD7690)
(8300769000010-IL)
AM loop antenna
(E601019000010-IL)
FM wire antenna
(E605010140010-IL)
Power cord (VYXE8, DLXE only)
(VYXE8: L068250100040-IL)
(DLXE: L068250160020-IL)
Dry cell batteries
(AAA size IEC R03) x2
Speaker cord (4 m) x 4
(8952S11005480-IL)
Speaker cord (10 m) x 2
(8952S11005490-IL)
Non-skid pads x 20
(8952S11005510-IL)
Operating instructions (CD-ROM) (YXE8, VYXE8, PWXE only)
(HTP-072/YXE8, VYXE8, PWXE: 6517000001380-IL)
(HTP-073/VYXE8: L068250160020-IL)
Quick start guide (YXE8, VYXE8, PWXE only)
(HTP-072/YXE8, VYXE8, PWXE: 5707000008050-IL)
(HTP-073/VYXE8: 5707000008060-IL)
Operating instructions
(HTP-072/CMXESM: 5707000008070-IL, 5707000008080-IL)
(HTP-072/YXE8, VYXE8, PWXE:
ARC8230, ARB7529, ARC8231, ARC8229, ARC8232, ARC8233,
ARC8235, ARB7531, ARC8236, ARC8234, ARC8237, ARC8238)
(HTP-072/DLXE: 5707000008090-IL, 5707000008100-IL)
(HTP-072/AXQ5: 5707000008110-IL, 5707000008120-IL)
(HTP-073/VYXE8:
ARC8245, ARB7530, ARC8246, ARC8244, ARC8247, ARC8248
ARC8240, ARB7532, ARC8241, ARC8239, ARC8242, ARC8243)
Warranty card (YXE8, VYXE8, AXE5 only)
Brackets for wall mounting x 4
(8952S11005500-IL)
Screw (M5) x 4
(8952S11005520-IL)
[S-22W-P]
Cabinet ...........................................................Bass-reflex, floor type
Speaker..................................................................16 cm cone type
Nominal impedance.....................................................................6 Ω
Outline Dimension ........... 230 mm (W) x 418 mm (H) x 358 mm (D)
(9 1/16 in.(W) x 16 7/16 in.(H) x 14 1/8 in.(D))
Weight (without package) .....................................5.1 kg (11 lb 4 oz)
[S-11A-P]
Front speakers / Surround speakers
Enclosure
Front speakers..................................... Closed-box bookshelf type
Surround speakers .............................. Closed-box bookshelf type
System.............................................................7.7 cm 1-way system
Speaker.................................................................7.7 cm cone type
Nominal impedance.....................................................................6 Ω
Dimensions...................... 106 mm (W) x 116 mm (H) x 106 mm (D)
(4 3/16 in.(W) x 4 9/16 in.(H) x 4 3/16 in.(D))
Weight
Front speakers.....................................................0.6 kg (1 lb 5 oz)
Surround speakers ..............................................0.6 kg (1 lb 5 oz)
Center speaker
Enclosure............................................... Closed-box bookshelf type
System.............................................................7.7 cm 1-way system
Speaker.................................................................7.7 cm cone type
Nominal impedance.....................................................................6 Ω
Dimensions...................... 270 mm (W) x 100 mm (H) x 106 mm (D)
(10 5/8 in.(W) x 3 15/16 in.(H) x 4 3/16 in.(D))
Weight ..................................................................0.8 kg (1 lb 13 oz)
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3. BASIC ITEMS FOR SERVICE
3.1 CHECK POINTS AFTER SERVICING
3.2 JIGS LIST
Items to be checked after servicing
To keep the product quality after servicing, confirm recommended check points shown below.
See the table below for the items to be checked regarding video and audio.
No.
Item to be checked regarding video Item to be checked regarding audio
Procedures Check points
1 Confirm whether the customer complain has been solved.
If the customer complain occurs with the particular source, such
as Dolby Digital, DTS, AAC, DVD-A and HDMI, input it for the
operation check.
The customer complain must not be reappeared.
Video, Audio and operations must be normal.
2 Check the analog audio playback.
(Make the analog connections with a DVD player.)
Each channel audio and operations must be normal.
3 Check the digital audio playback.
(Make the digital connections with a DVD player.)
Each channel audio and operations must be normal.
4 Check surround playback.
(Select Surround mode and check the multichannel operations
via the DSP circuit.)
Each channel audio and operations must be normal.
5 Check the video outputs.
(Connect with a DVD player.)
Video and operations must be normal.
6 Check the tuner (AM and FM) operations. Audio and operations must be normal.
7 Check the sound from headphone output. Sound must be normal, without noise.
8 Check the appearance of the product.
Block noise Distortion
Horizontal noise Noise
Flicker Volume too low
Disturbed image (video jumpiness) Volume too high
Too dark Volume fluctuating
Too bright Sound interrupted
Mottled color
No scratches or dirt on its appearance after receiving it for
service.
Jigs List
Jig Name Part No. Remarks
Lubricants and Glues List
Name Part No. Remarks
RS-232C update jig (Jig + 10P FFC) GGF1642
RS-232C cable (9-pin to 9-pin, straight cable) (Marketing product)
MAINmicrocomputer firmware update
(RS-232C ↔Rear panel)
RS-232C update jig GGF1646
USB cable (USB A-Type ↔USB B-Type) (Marketing product)
10P extension jig cable GGD1628
HDMI & CEC (SUB) microcomputer firmware update
(USB ↔Rear panel)
Diagnosis (AMP Assy ↔MAINAssy)
3P extension jig cable GGD1773 Diagnosis (AMP Assy ↔CPU Assy)
Board to board extension jig cable GGD1851 Diagnosis (D-MAINAssy ↔CNT Assy)
Board to board extension jig cable GGD1850 Diagnosis (D-MAINAssy ↔CPU Assy)
Silicon adhesive GYA1011 (KE40RTV-W) Refer to "9.2 VSX-324-K-P SECTION".
Silicon grease GEM1057 Refer to "9.2 VSX-324-K-P SECTION".
Board to board extension jig cable GGD1849 Diagnosis (D-MAINAssy ↔CPU Assy)

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3.3 PCB LOCATIONS
B
OPTCO ASSY
C
D-MAINASSY
E
CPU ASSY
G-CNT ASSY
I
FUSB ASSY
F
FRONT ASSY
J
CNT ASSY
VSX-324-K-P
A
MAINASSY
DLXE
ONLY
D
G
AMP6 ASSY
INSEL ASSY
G-L ASSY
G-T ASSY
H
HP ASSY
K
STBY ASSY
L
V_SEL ASSY
LIST OF ASSEMBLIES
NOTES:
-
Parts marked by “NSP” are generally unavailable because they are not in our Master Spare Parts List.
-
The >mark found on some component parts indicates the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of identical designation.
Mark Symbol and Description VSX-324-K-P
/CMXESM
VSX-324-K-P
/YXE8
VSX-324-K-P
/VYXE8
VSX-324-K-P
/DLXE
VSX-324-K-P
/PWXE
VSX-324-K-P
/AXQ5
NSP 1..PCB TTL ASSY MAIN 7025HK1215070-IL 7025HK1215010-IL 7025HK1215050-IL 7025HK1215040-IL 7025HK1215030-IL 7025HK1215020-IL
2.. MAIN ASSY (PCB SUB ASSY MAIN) 7028073701040-IL 7028073701010-IL 7028073701010-IL 7028073701030-IL 7028073701020-IL 7028073701020-IL
2.. OPTCO ASSY (PCB SUB ASSY OPTCO) 7028073702010-IL 7028073702010-IL 7028073702010-IL 7028073702010-IL 7028073702010-IL 7028073702010-IL
2.. G-L ASSY (PCB SUB ASSY G-L) 7028073704010-IL 7028073704010-IL 7028073704010-IL 7028073704010-IL 7028073704010-IL 7028073704010-IL
2.. G-T ASSY (PCB SUB ASSY G-T) 7028073705010-IL 7028073705010-IL 7028073705010-IL 7028073705010-IL 7028073705010-IL 7028073705010-IL
2.. G-CNT ASSY (PCB SUB ASSY G-CNT) 7028073706010-IL 7028073706010-IL 7028073706010-IL 7028073706010-IL 7028073706010-IL 7028073706010-IL
2.. V_SEL ASSY (PCB SUB ASSY V_SEL) Not used Not used Not used 7028073703020-IL Not used Not used
NSP 1..PCB TTL ASSY DMAIN 7025HK1215071-IL 7025HK1215011-IL 7025HK1215051-IL 7025HK1215041-IL
7025HK1215031-IL 7025HK1215021-IL
2.. D-MAIN ASSY (PCB SUB ASSY DMAIN) 7028073691010-IL 7028073691010-IL 7028073691010-IL 7028073691010-IL 7028073691010-IL 7028073691010-IL
NSP 1..PCB TTL ASSY FRONT 7025HK1215072-IL 7025HK1215012-IL 7025HK1215052-IL 7025HK1215042-IL
7025HK1215032-IL 7025HK1215022-IL
2.. FRONT ASSY (PCB SUB ASSY FRONT) 7028073671010-IL 7028073671010-IL 7028073671010-IL 7028073671010-IL 7028073671010-IL 7028073671010-IL
2.. HP ASSY (PCB SUB ASSY HP) 7028073672020-IL 7028073672020-IL 7028073672020-IL 7028073672020-IL 7028073672020-IL 7028073672020-IL
2.. FUSB ASSY (PCB SUB ASSY FUSB) 7028073673010-IL 7028073673010-IL 7028073673010-IL 7028073673010-IL 7028073673010-IL 7028073673010-IL
2.. INSEL ASSY (PCB SUB ASSY INSEL) 7028073674010-IL 7028073674010-IL 7028073674010-IL 7028073674010-IL 7028073674010-IL 7028073674010-IL
NSP 1..PCB TTL ASSY CPU 7025HK1215073-IL 7025HK1215013-IL 7025HK1215053-IL 7025HK1215043-IL
7025HK1215033-IL 7025HK1215023-IL
2.. CPU ASSY (PCB SUB ASSY CPU) 7028073681070-IL 7028073681010-IL 7028073681050-IL 7028073681040-IL 7028073681030-IL 7028073681020-IL
2.. STBY ASSY (PCB SUB ASSY STBY) 7028073682050-IL 7028073682010-IL 7028073682030-IL 7028073682040-IL 7028073682010-IL 7028073682020-IL
2.. CNT ASSY (PCB SUB ASSY CNT) 7028073683010-IL 7028073683010-IL 7028073683010-IL 7028073683010-IL 7028073683010-IL 7028073683010-IL
NSP 1..PCB TTL ASSY AMP6 7025HK1215074-IL 7025HK1215014-IL 7025HK1215054-IL 7025HK1215044-IL 7025HK1215034-IL 7025HK1215024-IL
2.. AMP6 ASSY (PCB SUB ASSY AMP6) 7028073711010-IL 7028073711010-IL 7028073711010-IL 7028073711010-IL 7028073711010-IL 7028073711010-IL

9
HTP-072
56 7 8
56 7 8
A
B
C
D
E
F

10 HTP-072
12 3 4
A
B
C
D
E
F
12 3 4
4. BLOCK DIAGRAM
4.1 OVERALL WIRING DIAGRAM
GNDU
PDN
GND
C
FLFL
FR
-B
-B
+B
+B
SL
C
+B
-B
ECBBC E ECBECBB C E
CPU_ST_VCC
STBY_RLY
CPU_+3.3V
GNDU
FLAC
INPUT_DN
STBY_KEY
CPU_ST_VCC
CPU_ST_VCC
FLAC
FLCT
FLAC
AC
HP_L
HP_DET
AC
SR
SW
SL
SR
FLFL
-B
-B
+B
+B
+B
GND
GND
+12V
GND
GND
+12V
PDN
FLAC
CPU_ST_VCC
FLCT
INPUT_UP
CPU_+3.3V
GNDU
STBY_RLY
(S1)
HP_GND
HP_R
NC
FR
SW
NC
-B
GND
GND
(S4)
(S3)
AC_IN
ECBB
(S2)
EC ECBECB
9P WIRE
INPUT_DN
GNDU
STBY_KEY
HP_R
HP_L
HP_GND
STBY
TRANS
INPUT_UP
9P WIRE
HP_DET
Q102FR
2SB1560
Q101FR
KTC3964
MAINTRANS
Q102FR Q103FRQ103FR
2SB1560 KTC3964 2SD23902SD2390
Q101FR Q102FR Q103FR
2SB1560 KTC3964 2SD2390
Q101FR
AC CORD
or INLET
SR
S1 : +/-B (MAINAMP)
S2 : +/-12V(ANALOG VCC)
S3 : +12V (DMAINVCC)
S4 : FLT AC
C
FR
DLXE ONLY
MAIN ASSY
(CMXESM: 7028073701040-IL)
(YXE8, VYXE8: 7028073701010-IL)
(DLXE: 7028073701030-IL)
(PWXE, AXQ5: 7028073701020-IL)
A
A1/3- A3/3
FRONT ASSY
(7028073671010-IL)
F
INSEL ASSY
(7028073674010-IL)
G
HP ASSY
(7028073672020-IL)
H
K
STBY ASSY (CMXESM: 7028073682050-IL) (YXE8, PWXE: 7028073682010-IL) (VYXE8: 7028073682030-IL) (DLXE: 7028073682040-IL) (7028073682020-IL)
L
V_SEL ASSY
(7028073703020-IL)
CN712
CN702CP702
CP5
CP1
CP3
CN1
CN701
CP203 CN204
CP701
CP304
CP301
CP303
CN103CN102 CP102
CP302

11
HTP-072
56 7 8
56 7 8
A
B
C
D
E
F
-B
-B
+B
+B
SW
SL
SR
FR
C
SR
C
FL
KEY2
KEY3
RMC
-30V
D+
KEY2
KEY3
-30V
-30V
NC
FRL
SURL
CRL
+B
-B
FL
SW
SL
FR
D+
D-
-30V
D-
RMC
C E ECBBEECBBC E E B
-B
-B
+B
+B
+B
GND
GND
+12V
GND
GND
+12V
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
GNDUSB
USB+5V
GNDUSB
HDMI_GND
HDMI_+12V
HDMI_+12V
HDMI_GND
VOL_UP
VOL_DN
CTL_LED
KEY1 (STBY_KEY)
FLT_DATA
FLT_CLK
FLT_CE
ST_H+5V
POWERDOW N
U/DGND
U/DGND
CPU_+3.3V
U/DGND
CPU_ST_VCC
DC DET3
DC DET4
ASO DET
VOL_UP
VOL_DN
FLT_CLK
ST_H+5V
U/DGND
U/DGND
U/DGND
THER_DET
A_MUTE
HP_DET
VOL_CLK
VOL_DATA
U/DGND
-VF(-30V)
-VF(-30V)
U/DGND
U/DGND
MUTE_B+
VIDEO_MUTE
V+5V
OSD_CLK
OSD_DATA
V_CTL_A
TUNER_RST
OSD_RST
TUNER_SDIO
TUNER_INT
DC DET4
DC DET3
D_+12V
D_+12V
9211_SCL
9211_SDA
9211_RST
SUB_IRQ
SUB_ON
SUB_RST
LED +5V
U/DGND
DSP_CS
-B
GND
GND
AGND
AGND
AGND
AGND
HDMI_GND
HDMI_+12V
THRU_LED
INPUT_DN
INPUT_UP
STBY_RLY
CPU_+3.3V
CPU_ST_VCC
+12V +12V GNDA1 GNDA1 GNDA1 GNDA1 SW_IN CL_IN SL_IN SR_IN FL_IN FR_IN AIN_L AIN_R GNDA1 GNDA1 GNDA1 GNDA1 GNDA1 GNDA1 GNDA1
CTL_LED
FLT_CE
+12V
GND
HP_RLY
SW_SUM
DC_PRO
U/DGND
V_CTL_B
TUNER_SCLK
TUNER_SEN
OSD_CE
ASO DET
U/DGND
MAIN_IRQ
HD_MUTE
ECBBCEECE
BCBCECBC
HDMI_GND
HDMI_GND
HDMI_+12V
GNDUSB
USB+5V
THRU_LED
INPUT_DN
INPUT_UP
FLT_DATA
STBY_RLY
POWERDOW N
CPU_+3.3V
CPU_ST_VCC
DC/DC_ON2
DC/DC_3V3_ON
D+3.3V_ON
DC/DC_ON1
CODEC_SDA
SCDO_MAIN
CPU_ST_VCC
SUB_TXD
DSP_SIMO
DSP_SPICLK
DSP_RST
DSP_RDY
HDMI_SEL
THRU_LED
USB5V_DET
3959_SCL
3959_RST
CPU_+3.3V
3959_PWR
Q103FR Q102FR
KTC3964 2SB1560
2SD2390
Q101FR Q102FR
Q103FR
KTC3964 2SB1560 KTC3964
2SD2390
RF101QRF101Q
-12V +12V GNDA1 GNDA1 GNDA1 GNDA1 SL_INS R_IN FL_IN FR_IN AIN_L AIN_R -12V GNDA1 GNDA1 +12V SW_IN CL_IN GNDA1 GNDA1 GNDA1 GNDA1 GNDA1
Q102FR RF301QRF301Q
2SB1560 KTC3964 2SD2390
Q101FR
HDMI_+12V
HDMI_+12V
HDMI_GND
GNDUSB
KEY1 (S TBY_KEY)
CPU_+3.3V
CPU_ST_VCC
D+1.8V_ON
HDMI_1V8_ON
CODEC_ADR
D+1.2V_ON
CODEC_SCL
CSCK_MAIN
CPU_ST_VCC
SUB_RXD
DSP_SOMI
SUB_OPO
USB5V_ON
CPU_+3.3V
3959_SDA
SW
CSL FL
2SD2390
-When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST".
-The >mark found on some component parts indicates the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of identical designation.
-: The power supply is shown with the marked box.
40-IL)
701010-IL)
IL)
701020-IL)
D-MAIN ASSY
(7028073691010-IL)
C
OPTCO ASSY
(7028073702010-IL)
B
FUSB ASSY
(7028073673010-IL)
I
CPU ASSY
E
AMP6 ASSY
(7028073711010-IL)
D
C1/3- C3/3
(CMXESM: 7028073681070-IL)
(YXEB: 7028073681010-IL)
(VYXE8: 7028073681050-IL)
(DLXE: 7028073681040-IL)
(PWXE: 7028073681030-IL)
(AXQ5: 7028073681020-IL)
J
CNT ASSY
(7028073683010-IL)
CP3
CN2
CP2005CP108
CP14
CP13
CP2
CP19
CP100
CP2001
CP2000
CP2006
CN2006
CP115
CP110
CP110
CP2003
CP109 CP113
CP205
CN1
CN704B
CN112
CP100
CP2200
CP3
CP201
CN204
CN705

12 HTP-072
12 3 4
A
B
C
D
E
F
12 3 4
4.2 OVERALL BLOCK DIAGRAM
FL
SR
SW
AIN_R
AIN_L
-12V
SW
C
SL
SR
FR
AIN_R
HDMI_IN_4
HDMI_IN_4
HDMI_IN_3
HDMI_IN_1
+12V
C
SR
C
FL
AIN_L
HDMI_IN_2
Q426
Q428
SL FR
IC401
USB_D-
AMUTE
MUTE_B+
FR
SW
SL
FL
Q427
IC2016
SAT_R
CD_R
SAT_L
TUNER_L
VOL_DATA
UTC4580E
OPT
COAX
SW_SUM-MC51
Q425
DVD_R
TUNER_R
DVD_L
CD_L
USB_D+
VOL_CLK
Q419
AUDIO PART
AMAIN ASSY
CD-MAIN ASSY
BOPTCO ASS
IFUSB ASSY
DA

13
HTP-072
56 7 8
56 7 8
A
B
C
D
E
F
-HIGHB
+12V
+HIGHB
ASO_PROT
DC_DET3
C_FB
S_RLY
C_RLY
SR
C C
SW_FB
FR_FB
SR_OUT
C_OUT
SL_FB
FL_FB
FR
SW
SL
FL
SW_OUT
FR_OUT
SR_FB
C_FB
SL_OUT
FL_OUT
Q422
Q416
Q458
Q446
Q440
Q410
Q404
FL_FB
Q405
Q2
Q11 Q10
Q3
HP_RO
HP_LO
+12V
Q423
Q417
Q428'
Q434'
Q452
-HIGHB
HIGHGND
DC_DET4
+12V
F_RLY
OPT
COAX
SW
FR
SL
FL
SR_FB
SL_FB
SW_FB
C_FB
SR
NTSC/PAL X-TAL OPTION
Q9
Q4
FR_FB
FL_FB
NTSC 14M318
PAL 17M734
(OSD PART)
RT
(VIDEO PART)
(RLY PART)
ASSY
AMAIN ASSY
F
FRONT ASSY
H
HP ASSY
AMAIN ASSY
BOPTCO ASSY
FUSB ASSY
JCNT ASSY
DAMP6 ASSY

14 HTP-072
12 3 4
A
B
C
D
E
F
12 3 4
4.3 VCC BLOCK DIAGRAM
100/16
M3V3
S4(FLT)
TUN
V+5V
21
JE202B1T2
1N4007
1N4007
1N4007
1N4007
0.2A
2.5A
CPU_ST_VCC
IL1117-3.3
6.8V
395
2200/16(12*16)
4N7
STBY_RLY'
1
3
2
4
HL3-1A-6SH
S2(+12V,-12V)
1.0A
S1(AMP B+/B-)
2.7A
M3V3
KIA7912PI
ZJ16B
ZJ16B
A-6.8V
A_-12V
6.8V
A+6.8V
AUDIO PART
+12V
AC
CORD
S3(+12V)
KIA7812API KIA7805API
MAIN
TRANS
VID
KSTBY ASSY
AMAIN ASSY
C

15
HTP-072
56 7 8
56 7 8
A
B
C
D
E
F
0
D1.8V_ON
0
0
0
0
D3.3V_ON
+12V
A_-12V
HDMI_+12V
HDMI_+12V
TUNER+5V
V+5V
D3V3
DC/DC_ON2
-HIGHB
+HIGHB
+12V
FL_AC2
FL-30V
D+3.3V_2
USB+5V
D5V
DSP+1.2V
DSP+1.8V(USB)
DSP+3.3V(USB)
M3V3
3959_PWR
VCC_3959
+12V
A_-12V
+12V
BD9328
STBY_RLY
M3V3
D1.2V_ON
NM
FL_AC1
H+3.3V
NM
D3V3
SUB_ON
IL1117-1.8V
SCPU+3.3V
DSP+3.3V
H+3.3V
H+1.8V
BD9328
IL1117-5.0
1 6 2 3
5
4
RAQ045P01
AZ1068-1V8
1 6 2 3
5
4
RAQ045P01
DC/DC_ON1
H_3V3_ON
USB5V_ONOVER_CURRENT_DET
DC/DC_3V15
H_1V8_ON
ST_LED
8V
-12V
8V
2V
+5V
IC2024
NCP380
0
D+3V15
VCC_16315
H+5V
NJM2387
1 6 2 3
5
4
RAQ045P01
1 6 2 3
5
4
RAQ045P01
VIDEO PART
CPU_ST_VCC
SA1117D-1.2V
NJM2831F33
1 6 2 3
5
4
RAQ045P01
ECPU ASSY
FFRONT ASSY
CD-MAIN ASSY
BOPTCO ASSY IFUSB ASSY
DAMP6 ASSY

16 HTP-072
12 3 4
A
B
C
D
E
F
12 3 4
4.4 GND BLOCK DIAGRAM
FL FL
FR
A+12V
FR
A+
FL_HP
FV
FL_AFR_HP
FV
FR_A
A+12V
C
CEN_A
AC CORD
POWER TRANS
MICOM REGILATOR
KSTBY ASSY
AMAIN ASS
GINSEL ASSY
HHP ASSY
B
O

17
HTP-072
56 7 8
56 7 8
A
B
C
D
E
F
DC_PROTECTION
A+12V
FR
A+12V
SW SL
-HIGHB
A-12V
A+12V
FV
FR_A
CV
C
+HIGHB1
A+12V
SR
CEN_A CEN_A SL_A
SUV
SR_A
AMAIN ASSY
FFRONT ASSY
DAMP6 ASSY
C
D-MAIN ASSY
B
OPTCO ASSY
J
CNT ASSY ECPU ASSY
IFUSB ASSY

18HTP-072
12 3 4
A
B
C
D
E
F
12 3 4
5. DIAGNOSIS
5.1 TROUBLESHOOTING
No Power
Other trouble.
Check D303 to D308, PT301, IC301
on STBY Assy or replace STBY Assy.
AMP DC Protention works.
Disconnect speaker cables if you connect speakers.
(Prevention of Speaker destruction.)
Is Stand by?
(or ON→Stand by)
Is the error indicated?
(HDMI LED flashing?)
Does DC Protection work
when power ONagain?
Ye s
This is just for general reference and does not including every single case.
Ye s
Ye s
No
No
Replace STBY Assy.
No
Cancel the DC detection. Refer to "6. [3] 3.4 How to
cancel the status after detection of the DC error".
Connect speakers, and check that sound output does
not have any problem.
Replace CPU Assy.
Check IC301 on STBY Assy or
replace STBY Assy.
No
Check cable connection between CP701 on STBY Assy and
CN701 on FRONT Assy. If it is OK, replace that cable.
No
No
Is the fuse (F301) open?
Is the voltage +5.6 V?
(STBY Assy CP701
pins 6, 9)(C301 +side)
Is the voltage +10 V?
(FRONT Assy
CN701 pins 1, 4)
Ye s
Ye s
Check +10V line on FRONT Assy
or replace FRONT Assy.
No
Is the voltage +10 V?
(FRONT Assy
CN705 pins 21, 22)
Check connection betwwern CN705 on FRONT Assy
and CN704B on CPU Assy.
Check cable connection between CP701 on STBY Assy and
CN701 on FRONT Assy. If it is OK, replace that cable.
If the connection check is NG, check the FFC cabel
between CN705 and CN704B or replace the FFC cable.
No
Ye s
Is the voltage +10 V?
(CPU Assy
CN704B pins 21, 22)
Check connection betwwern CN705 on FRONT Assy
and CN704B on CPU Assy.
If the connection check is NG, check the FFC cabel
between CN705 and CN704B or replace the FFC cable.
No
Is the voltage +3.3 V?
(CPU Assy
CN704B pins 16, 17)
Is the voltage +3.3 V?
(STBY Assy
IC301 pin 2)
Ye s
Ye s
Check +3.3V line on FRONT Assy
or replace FRONT Assy.
No
Is the voltage +3.3 V?
(FRONT Assy
CN705 pins 16, 17)
Ye s
No
Is the voltage +3.3 V?
(FRONT Assy
CN701 pin 5)
Ye s
Ye s
Refer to "5.2 [1] Overload and DC Protection Circuit",
Diagnosis AMP6 Assy and MAINAssy.
Ye s
No
No Power

19
HTP-072
56 7 8
56 7 8
A
B
C
D
E
F
No FL DISPLAY
Are the voltage 2.3 Vac to 2.5 Vac?
(FRONT Assy CN701 pins 7, 9)
This is just for general reference and does not including every single case.
Ye s
No
No
No
NoNoNo
NoReplace Power transformer.
Replace FLT701 or
replace FRONT Assy.
Check Q17, R64, R65, R66, D23,
ZD24, ZD25 on MAINAssy
or replace MAINAssy.
Check FLT701, R779, R780 or
replace FRONT Assy.
Ye s
Check L701, IC701 or
replace FRONT Assy.
No
No
Check Q702, Q703, R777, R778
or replace FRONT Assy.
Replace CP14.
No
Is the voltage -30 V?
(FRONT Assy C728 - side)
Is the voltage 3.3 V?
(FRONT Assy C730 + side)
Are the voltage 2.28 Vac?
(FRONT Assy FLT701
pins 1, 2, 38, 39)
Are the voltage -30 V?
(FRONT Assy CN705
pins 24, 25)
Are the voltage -30 V?
(CPU Assy CN704B
pins 24, 25)
Are the voltage -30 V?
(CPU Assy CP2
pins 10, 11)
Are the voltage -30 V?
(MAINAssy CP14
pins 10, 11)
Is the voltage 2.27 Vac
to 2.28 Vac?
(Transformer orange wire)
Ye s
Replace FFC.
Replace FRONT Assy.
Replace FLT701.
Ye s
Ye s
Is damage in FLT701?
Ye s
Ye s
Replace CP2 or replace CPU Assy.
Ye s
Ye s
No
No FL DISPLAY

20 HTP-072
12 3 4
A
B
C
D
E
F
12 3 4
A B C
No Sound
Phones
HTP-072: When connected phones, is
MAINAssy CP5 pin 1 (HP_DET) low?
VSX-323: When connected phones, is
MAINAssy CP101 pin 1 (HP_DET) low?
Is the voltage 0 to 12 V?
(HTP-072: MAINAssy R23)
(VSX-323: MAINAssy R32)
Does the sound of speaker
front ch output?
Set "STEREO" mode with STANDARD
SURROUND key and speaker ON/OFF
with SPEAKERS key.
Is pin 18 voltage changing
from 3.3 V to 2.23 V?
(FRONT Assy CP705 pin 6)
HTP-072: Change analog input signal to another
analog input (e.g VIDEO) and select it.
Are the signal on AMP6 Assy CP401 pin 1, 9?
VSX-323: Change analog input signal to another
analog input (e.g VIDEO) and select it.
Are the signal on AMP5 Assy CP201 pin 1, 9?
Does HP OUTPUT signal output?
(HTP-072: MAINAssy CP5 pin 2 or 4)
(VSX-323: MAINAssy CP101 pin 2 or 4)
When connected phones,
does the relay change to phones?
(CPU Assy IC203 pin 24 0 →3.3 V)
This is just for general reference and does not including every single case.
Speaker front ch sound
Relay Control Check flow
No
No
NoReplace HP Assy.
Replace HP Assy.
No Problem / No Damage
Replace HP Assy.
Replacce Q5, Q12, R23 on
CPU Assy or replace CPU Assy.
Check IC2023 on CPU Assy
or replace CPU Assy.
No
No
NoNo
Replacce Q2, Q9 on MAINAssy
or replace MAINAssy.
Check and repair FL or FR AMP
circuit or replace AMP Assy.
No
Replace CPU Assy.
No
NoNoNo
HTP-072: Check connectors between MAINAssy
CP5 and HP Assy CN721.
VSX-323: Check connectors between MAINAssy
CP101 and HP Assy CN721.
Replace MAINAssy.
No Problem / No Damage
HTP-072: Check connecters between
MAINAssy CP5 and HP Assy CN721.
VSX-323: Check connecters between
MAINAssy CP101 and HP Assy CN721.
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Replace FFC between CP704B
and CN705.
Ye s
Check the problem analog signal
line between input connector and
IC400 (Input selector IC)
or replace MAINAssy.
Ye s
Ye s
Ye s
Ye s Ye s
No Sound
Is the voltage changing
3.3 V to 2.23 V?
(CPU Assy CN704B pin 6)
Is the voltage 0 to 3.2 V?
(CPU Assy CP2 pin 7)
Is the voltage 0 to 12 V?
(MAINAssy R20)
Analog in (e.g. CD)
Pure Direct →
Speaker out sound
HTP-072: Are the signal on AMP6
Assy CP401 pin 1, 9?
VSX-323: Are the signal on AMP5
Assy CP201 pin 1, 9?