Pioneer 1014TX-K - THX Select A/V Receiver Service Manual
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Pioneer 1014TX-K - THX Select A/V Receiver Service Manual

Audio/video multi-channel receiver
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AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-52TX
VSX-1014TX-K
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type
VSX-52TX
KUXJ/CA
VSX-1014TX-K
KUXJC
For details, refer to "Important symbols for good services".
PIONEER CORPORATION
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 2004
STANDBY/ON
MULTI JOG
Power Requirement
AC120V
AC120V
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
LISTENING MODE
SELECT
DVD/LD
ENTER
CD
VSX-52TX
VSX-52TX
TV/SAT
DVR/VCR
VIDEO1
CD-R/
TUNER
VIDEO2
TAPE/MD
MASTER VOLUME
ORDER NO.
RRV2977
Remarks
T-ZZR JUNE 2004 printed in Japan
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Summary of Contents for Pioneer 1014TX-K - THX Select A/V Receiver

  • Page 1 PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, 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...

  • Page 2: Safty Information

    PIONEER Service Manual. A subscription to, or additional copies Also test with plug reversed of, PIONEER Ser vice Manual may be obtained at a (Using AC adapter Earth nominal charge from PIONEER. plug as required)

  • Page 3: Table Of Contents

    [ Important symbols for good services ] In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely. When you find the procedures bearing any of the symbols, be sure to fulfill them: 1. Product safety You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and should keep the safety during servicing by following the safety instructions described in this manual.
  • Page 4 3.19 REAR TOP, TRANS SIDE, TRANS 1 and PRIMARY ASSYS ..............60 4. PCB CONNECTION DIAGRAM ........................62 4.1 MULTI CH I/O ASSY ..........................63 4.2 AUDIO CONNECT ASSY ........................64 4.3 COMPOSITE V ASSY..........................65 4.4 S VIDEO ASSY ............................66 4.5 VIDEO SIDE and OPTICAL-IN ASSYS ....................

  • Page 5: Specifications

    1. SPECIFICATIONS Specifications Amplifier section Antenna Input ........... 75Ω unbalanced Continuous average power output of 110 watts* per channel, min., at 8 ohms, from 20 Hz to 20,000 Hz with no more than 0.09%** total harmonic distortion (front). AM Tuner Sectio Frequency Range ......

  • Page 6: Exploded Views And Parts List

    2. EXPLODED VIEWS AND PARTS LIST NOTES: Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List. 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.
  • Page 7 (1) PACKING parts List Mark No. Description Part No. Mark No. Description Part No. Microphone APM7004 Remote Control Unit AXD7381 for Auto Surround Sound Setup Battery Cover XZN3140 Microphone Stand AEB7269 for Auto Surround Sound Setup • • • • FM Wire Antenna ADH7030 NSP 12...

  • Page 8: Exterior Section

    2.2 EXTERIOR SECTION Refer to "2.3 CHASSIS SECTION". Refer to "2.6 FRONT PANEL SECTION". VSX-52TX...
  • Page 9 (1) EXTERIOR SECTION parts List Mark No. Description Part No. Bonnet Case V1B AZN7980 Left Beam ANG7401 Center Beam ANG7482 Insulator PNW2766 Spacer (4.5 x 10 x 20) AEB7355 Spacer 45B (6 x 7 x 13) AEB7264 Nyron Rivet AEC7408 Label (DD/DTS/THX) ARW7281 NSP 9...

  • Page 10: Chassis Section

    2.3 CHASSIS SECTION Refer to "2.5 HEATSINK SECTION". Refer to "2.4 REAR PANEL SECTION". Screw Cover (Accessory of Panel Base V1B) VSX-52TX Only VSX-52TX...
  • Page 11 (1) CHASSIS SECTION parts List Mark No. Description Part No. Mark No. Description Part No. Trans. Frame 45 ANG7399 PRIMARY Assy AWX8384 NSP 19 Panel Stay V1 AND7066 SP/PS Assy AWX8373 Stabilizer 45 See Contrast table (2) DIODE Assy AWX8376 TRANS 2-1 Assy AWX8372 Screw Cover 45A...

  • Page 12: Rear Panel Section

    2.4 REAR PANEL SECTION VSX-52TX Only VSX-52TX Only POWER AMP IN from POWER PROTECT from TRANS SIDE TRANS 2-1 VSX-52TX...
  • Page 13 (1) REAR PANEL SECTION parts List Mark No. Description Part No. Mark No. Description Part No. Connector Assy (8P) See Contrast table (2) 12V TRIGGER Assy See Contrast table (2) COMPONENT Assy AWX8358 Flexible Cable (11P) ADD7476 S VIDEO Assy AWX8361 Flexible Cable (17P) ADD7478...

  • Page 14: Heat Sink Section

    2.5 HEAT SINK SECTION from AUDIO CONNECT from SP/PS TRANS 2-1 11 11 from MAIN CONTROL VSX-52TX...
  • Page 15 HEAT SINK SECTION parts List Mark No. Description Part No. POWER AMP-L Assy AWX8409 POWER AMP-R Assy AWX8404 POWER AMP IN Assy AWX8405 POWER PROTECT Assy AWX8406 POSI 1 L Assy AWX8427 POSI 1 R Assy AWX8426 Flexible Cable (15P) ADD7473 Flexible Cable (18P) ADD7479...

  • Page 16: Front Panel Section

    2.6 FRONT PANEL SECTION 17 (2/2) (Magnet Holder) from MAIN CONTROL 17 (1/2) Screw Cover (See section "2.3 CHASSIS SECTION".) No. 17 (2/2) Magnet Holder VSX-52TX...
  • Page 17 VSX-52TX/KUXJ/CA and VSX-1024TX-K/KUXJC are constructed the same except for the following: VSX-52TX VSX-1024TX-K Mark Symbol and Description /KUXJ/CA /KUXJC DISPLAY Assy AWX8377 AWX8389 10 Pioneer Badge B PAN1376 AAN7218 11 F. Panel 52KU ANB7338 Not used 11 F. Panel 1014KU Not used ANB7339 14 D. Sheet 52KU...

  • Page 18: Block Diagram And Schematic Diagram

    3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM 3.1.1 AUDIO SECTION OPTICAL-IN ASSY FRONT-IN CONNECT ASSY FRONT-IN ASSY REAR TOP ASSY MULTI CH I/O ASSY AUDIO CONNECT ASSY VSX-52TX...
  • Page 19 1/2 - DSP ASSY TRANS SIDE HEADPHONE ASSY ASSY REGULATOR ASSY PS/SP ASSY 1/3 - MAIN CONTROL ASSY POWER AMP_L ASSY POWER AMP IN ASSY POWER AMP-R ASSY VSX-52TX...

  • Page 20: Video And Display Sections

    3.1.2 VIDEO and DISPLAY SECTIONS Video Block VSX-52TX IC721 NJM2279M JA721 JA721 MR OUT MR OUT MULTI ROOM Selector ONLY IC742 IC741 MM1093NF TC90A49F VSX-52TX CKIN ONLY MR OUT (1/2) DVD/LD Q743 SEPARATE GENERATE (2/2) IC701 TV/SAT IC732 (1/2) IC731 NJM2595M TK15420M TC74HC4052AF...

  • Page 21: Volume Assy

    Display/SR Block VOLUME ASSY REAR TOP ASSY MULTI JOG ASSY JA951 SR IN DISPLAY V3001 ASSY FL Display JA952 S3251 3002 3251 SR OUT IC3001 PE5403A Display U-COM CN951 VSX-52TX IC3003 38 39 14 12 15 16 S3201 3001 3201 ONLY TC7W53FU IR SW...

  • Page 22: Dsp Section

    3.1.3 DSP SECTION DSP Block 1/2 - DSP ASSY AUDIO/VIDEO MULTI-CHANNEL RECEIVER VSX-52TX LISTENING MODE SELECT DVD/LD TV/SAT DVR/VCR VIDEO1 STANDBY/ON CD-R/ ENTER TAPE/MD TUNER VIDEO2 MULTI JOG MASTER VOLUME VSX-52TX...
  • Page 23 VSX-52TX...

  • Page 24: Power Supply Section

    3.1.4 POWER SUPPLY SECTION Power Supply Block POWER AMP-L PS/SP ASSY ASSY 4 11 12 CN2004 2001 PRIMARY ASSY V+12A T1001 IC1001 NJM78M56FA W1006 V-12A REG. CN1002 CN2003 D1001 CN4501 RY1001 LIVE CN2002 CN4001 13 12 11 10 NEUTRAL CN1001 4001 D2241 D2242...
  • Page 25 POWER AMP-R ASSY V+5.6ST V+12A V-12A MULTI CH I/O ASSY DISPLAY V+7A REAR TOP ASSY TUNER ASSY MODULE V+5_6U V+9T V-7A V-12A 19 18 12 11 10 CN955 V+5_6ST Q951 CN4551 CN602 CN601 REG. CN4002 CN954 CN904 CN903 CN905 CN4003 V-12A V-12A CN902...

  • Page 26: Overall Wiring Diagram

    3.2 OVERALL WIRING DIAGRAM VOLUME ASSY DISPLAY ASSY MULTI JOG ASSY (AWX8378) (VSX-52TX : AWX8377) (AWX8379) (VSX-1014TX-K : AWX8389) FRONT-IN CONNECT ASSY (AWX8416) POWER PROTECT ASSY (AWX8406) FRONT-IN ASSY (AWX8381) AUDIO CONNECT ASSY (AWX8382) COMPOSITE V ASSY (VSX-52TX : AWX8353) (VSX-1014TX-K : AWX8362) S VIDEO ASSY (AWX8361)
  • Page 27 ÷ 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. ÷...

  • Page 28: Multi Ch I/O And Audio Connect Assys

    3.3 MULTI CH I/O and AUDIO CONNECT ASSYS VSX-52TX ONLY MULTI ROOM & SOURCE SUB W. CENTER FRONT SURROUND SURROUND BACK FRONT SURROUND SUB W. CENTER VSX-52TX...
  • Page 29 MULTI CH I/O ASSY (VSX-52TX : AWX8410) (VSX-1014TX-K : AWX8352) AUDIO CONNECT ASSY (AWX8382) CN4003 (FL) (LS) : AUDIO SIGNAL ROUTE (SURROUND Lch) (MR) (SBL) : AUDIO SIGNAL ROUTE (MULTI-ROOM Lch) : AUDIO SIGNAL ROUTE (SURROUND BACK Lch) (FL) : AUDIO SIGNAL ROUTE (CENTER ch) : AUDIO SIGNAL ROUTE (FRONT Lch) VSX-52TX...

  • Page 30: Composite V Assy

    3.4 COMPOSITE V ASSY DVR/VCR VIDEO1 DVD/LD TV/SAT CN2501 VSX-52TX...
  • Page 31 VSX-52TX Only MULTI-ROOM & SOURCE MONITOR VSX-52TX Only DVR/VCR (DVD) MONITOR 1000/10 2.0k COMPOSITE V ASSY (VSX-52TX : AWX8353) (VSX-1014TX-K : AWX8362) : VIDEO SIGNAL ROUTE (DVD) : VIDEO SIGNAL ROUTE (DVD) : VIDEO SIGNAL ROUTE ( Y ) : VIDEO SIGNAL ROUTE ( C ) CN891 VSX-52TX...

  • Page 32: S Video Assy

    3.5 S VIDEO ASSY S VIDEO ASSY (AWX8361) DVR/VCR VIDEO1 DVD/LD TV/SAT : VIDEO SIGNAL ROUTE CN2502 : VIDEO SIGNAL ROUTE ( Y ) : VIDEO SIGNAL ROUTE ( C ) VSX-52TX...
  • Page 33 DVR/VCR S-VIDEO 1000/10 2.0k MONITOR 2.0k 9.1k VIDEO SIDE ASSY (AWX8366) VSX-52TX...

  • Page 34: Component Assy

    3.6 COMPONENT ASSY COMPONENT (AWX8358) : VIDEO SIGNAL ROUTE (Cb) : VIDEO SIGNAL ROUTE (Cb) : VIDEO SIGNAL ROUTE ( Y ) (Cr) : VIDEO SIGNAL ROUTE ( Cr ) VSX-52TX...
  • Page 35 1000/10 CN893 CN2503 VSX-52TX...

  • Page 36: Optical-In,H.p,Front-In,Front-In Connect And 12Vtrig Assys

    3.7 OPTICAL-IN,H.P,FRONT-IN,FRONT-IN CONNECT and 12VTRIG ASSYS HEADPHONE ASSY (AWX8380) OPTICAL-IN ASSY (AWX8394) (TV/SAT) PHONES 2302 (CD-R/ TAPE/MD) CN601 FRONT-IN ASSY (AWX8381) MCACC SETUP MIC DIGITAL S-VIDEO VIDEO G H I VSX-52TX...
  • Page 37 12V TRIGGER ASSY (AWX8395) 12V TRIGGER (DC OUT 12V/ 100mA MAX) MULTI-ROOM & SOURCE Pattern Layout CN2504 VSX-52TX ONLY CN107 FRONT-IN CONNECT ASSY (AWX8416) : VIDEO SIGNAL ROUTE : VIDEO SIGNAL ROUTE ( V ) : VIDEO SIGNAL ROUTE ( Y ) : VIDEO SIGNAL ROUTE ( C ) VSX-52TX...

  • Page 38: Main Control Assy (1/3)

    3.8 MAIN CONTROL ASSY (1/3) MAIN CONTROL ASSY (VSX-52TX : AWX8343) (VSX-1014TX-K : AWX8348) CD IN CD-R PLAY VIDEO1 PLAY TV/SAT DVD/LD CN2511 VSX-52TX...
  • Page 39 (F ) : AUDIO SIGNAL ROUTE (Lch) (FL) (CD-R) : AUDIO SIGNAL ROUTE (FRONT Lch) : AUDIO SIGNAL ROUTE (CD-R Lch) (LS) : AUDIO SIGNAL ROUTE (SURROUND Lch) (TX) : AUDIO SIGNAL ROUTE (TUNER Lch) (SBL) (MR) : AUDIO SIGNAL ROUTE (SURROUND BACK Lch) : AUDIO SIGNAL ROUTE (MULTI-ROOM Lch) : AUDIO SIGNAL ROUTE (CENTER ch) (DVD)

  • Page 40: Main Control Assy (2/3)

    3.9 MAIN CONTROL ASSY (2/3) MAIN CONTROL ASSY (VSX-52TX : AWX8343) (VSX-1014TX-K : AWX8348) VSX-52TX...
  • Page 41 Direct Others ON -8.0V -1.5V Direct Others ON 4.0V -12V OFF -12V -12V (FL) : AUDIO SIGNAL ROUTE (FRONT Lch) (LS) Direct Others : AUDIO SIGNAL ROUTE (SURROUND Lch) ON -7V 3.6V OFF -12V -12V (SBL) : AUDIO SIGNAL ROUTE (SURROUND BACK Lch) : AUDIO SIGNAL ROUTE (CENTER ch) Direct Others...

  • Page 42: Main Control Assy (3/3)

    3.10 MAIN CONTROL ASSY (3/3) (TX) MAIN CONTROL ASSY : AUDIO SIGNAL ROUTE (TUNER Lch) (VSX-52TX : AWX8343) CN2525 (VSX-1014TX-K : AWX8348) (TX) VSX-52TX ONLY VSX-52TX ONLY CN2514 CN2512 VSX-52TX...
  • Page 43 CN3001 PD5956A8 (VSX-52TX) PD5956A (VSX-1014TX) VSX-52TX ONLY CN4053 CN2515 CN3322 VSX-52TX...

  • Page 44: Dsp Assy (1/2)

    3.11 DSP ASSY (1/2) (DVD/LD) DIGITAL (CD) CN961 VSX-52TX...
  • Page 45 DSP ASSY (AWX8414) (FL) (AD) (AD) (AD) (SL) (AD) (SW) (SBL) (SBL) CN2524 : AUDIO SIGNAL ROUTE (Lch) (SL) : AUDIO SIGNAL ROUTE (DIGITAL) : SURROUND SIGNAL ROUTE (SBL) (FL) : AUDIO SIGNAL ROUTE (SURROUND BACK Lch) : AUDIO SIGNAL ROUTE (FRONT Lch) (SW) : AUDIO SIGNAL ROUTE (SUB WOOFER ch) : AUDIO SIGNAL ROUTE (CENTER ch)

  • Page 46: Dsp Assy (2/2)

    3.12 DSP ASSY (2/2) DSP ASSY (AWX8414) CN2522 VSX-52TX...
  • Page 47 VSX-52TX...

  • Page 48: Volume, Display And Multi Jog Assys

    3.13 VOLUME, DISPLAY and MULTI JOG ASSYS VOLUME ASSY (AWX8378) DISPLAY ASSY (VSX-52TX : AWX8377) (VSX-1014TX-K : AWX8389) VSX-52TX ONLY VOLUME ASSY S3202 : CD S3203 : CDR/ TAPE/MD S3204 : TUNER S3205 : VIDEO2 S3206 : VIDEO1 S3207 : DVR/VCR S3208 : TV/SAT S3209 : DVD/LD VSX-52TX...
  • Page 49 MULTI JOG ASSY S3252 : STANDBY/ S3253 : LISTENING MODE S3254 : ENTER MULTI JOG ASSY (AWX8379) DISPLAY ASSY S3001 : SPEAKERS S3002 : EXTENDED MODE S3003 : SIGNAL SELECT S3004 : MULTI CH S3005 : DIALOG ENHANCEMENT S3006 : ACOUSTIC EQ S3007 : TONE S3008 : MIDNIGHT/ LOUDNESS...

  • Page 50: Power Amp In And Power Protect Assys

    3.14 POWER AMP IN and POWER PROTECT ASSYS POWER AMP IN ASSY (AWX8405) CN106 POWER PROTECT ASSY (AWX8406) VSX-52TX...
  • Page 51 : AUDIO SIGNAL ROUTE (CENTER ch) CN4551 CN4452 CN2102 CN4402 CN4501 CN4552 CN4502 VSX-52TX...

  • Page 52: Power Amp-L And Posi 1 L Assys

    3.15 POWER AMP-L and POSI 1 L ASSYS POWER AMP-L ASSY (AWX8409) : AUDIO SIGNAL ROUTE (FRONT Lch) (LS) : AUDIO SIGNAL ROUTE (SURROUND Lch) (SBL) : AUDIO SIGNAL ROUTE (SURROUND BACK Lch) POSI 1 L ASSY (AWX8427) VSX-52TX...
  • Page 53 CN2103 CN2101 CN2103 VSX-52TX...

  • Page 54: Power Amp-R And Posi 1 R Assys

    3.16 POWER AMP-R and POSI 1 R ASSYS POWER AMP-R ASSY (AWX8404) : AUDIO SIGNAL ROUTE (FRONT Rch) (RS) : AUDIO SIGNAL ROUTE (SURROUND Rch) (SBR) : AUDIO SIGNAL ROUTE (SURROUND BACK Rch) POSI 1 R ASSY (AWX8426) VSX-52TX...
  • Page 55 CN2104 CN2102 2001 CN2104 CN4451 VSX-52TX...

  • Page 56: Regulator Assy

    3.17 REGULATOR ASSY REGULATOR ASSY (VSX-52TX : AWX8364) (VSX-1014TX-K : AWX8367) CN981 CN5001 VSX-52TX ONLY CN901 VSX-52TX...
  • Page 57 : AUDIO SIGNAL ROUTE (Lch) (FL) : AUDIO SIGNAL ROUTE (FRONT Lch) (LS) : AUDIO SIGNAL ROUTE (SURROUND Lch) (SBL) : AUDIO SIGNAL ROUTE (SURROUND BACK Lch) : AUDIO SIGNAL ROUTE (CENTER ch) CN951 (FL) CN701 • NOTE FOR FUSE REPLACEMENT CAUTION - FOR CONTINUED PROTECTION AGAINST RISK OF FIRE.

  • Page 58: Trans 2-1, Trans 2-2, Diode, Vh Tr And Sp/Ps Assys

    3.18 TRANS 2-1, TRANS 2-2, DIODE, VH TR and SP/PS ASSYS DIODE ASSY TRANS 2-1 ASSY (AWX8372) (AWX8376) POWER TRANSFORMER POWER TRANSFORMER 2502 VH TR ASSY (AWX8411) TRANS 2-2 ASSY (AWX8371) • NOTE FOR FUSE REPLACEMENT FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. CAUTION - REPLACE WITH SAME TYPE AND RATINGS OF FUSE.
  • Page 59 SP/PS ASSY (AWX8373) AKE7009 CN2114 (1/2) CENTER (2/2) (FL) : AUDIO SIGNAL ROUTE (FRONT Lch) : AUDIO SIGNAL ROUTE (CENTER ch) (LS) : AUDIO SIGNAL ROUTE (SURROUND Lch) (HPL) : AUDIO SIGNAL ROUTE (PHONES Lch) (SBL) : AUDIO SIGNAL ROUTE (SURROUND BACK Lch) VSX-52TX...

  • Page 60: Rear Top, Trans Side, Trans 1 And Primary Assys

    3.19 REAR TOP, TRANS SIDE, TRANS 1 and PRIMARY ASSYS REAR TOP ASSY (AWX8397) (TX) : AUDIO SIGNAL ROUTE (TUNER Lch) SR IN SR OUT (TX) TRANS 1 ASSY (AWX8383) AC AE VSX-52TX...
  • Page 61 (HPL) TRANS SIDE ASSY (AWX8417) : AUDIO SIGNAL ROUTE (PHONES Lch) CN2505 2005 CN3301 2250 • NOTE FOR FUSE REPLACEMENT FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. CAUTION - REPLACE WITH SAME TYPE AND RATINGS OF FUSE. PRIMARY ASSY (AWX8384) CN1003 KP200TA5L AC IN...

  • Page 62: Pcb Connection Diagram

    4. PCB CONNECTION DIAGRAM NOTE FOR PCB DIAGRAMS : 1. Part numbers in PCB diagrams match those in the schematic 3. The parts mounted on this PCB include all necessary parts for diagrams. several destinations. 2. A comparison between the main parts of PCB and schematic For further information for respective destinations, be sure to diagrams is shown below.

  • Page 63: Multi Ch I/O Assy

    4.1 MULTI CH I/O ASSY SIDE A SIDE A MULTI CH I/O ASSY JA605 CN603 CN604 R650 R649 R640 R639 R635 R636 R654 R653 C646 C645 C636 C635 C633 C634 C654 C653 JA604 C674 R670 R669 C666 IC604 C665 R691 R645 R646 C643...

  • Page 64: Audio Connect Assy

    4.2 AUDIO CONNECT ASSY SIDE A SIDE A CN102 CN103 AUDIO CONNECT ASSY CN901 CN902 CN901 CN902 AUDIO CONNECT ASS'Y AWX8382 CN903 CN904 CN602 W901 W902 W903 W904 NECK8 NECK6 W905 AMUTE V-12A COUT CMKM-P3X GNDA CN903 SBROUT GNDA CN4003 ROUT GNDA RSOUT...

  • Page 65: Composite V Assy

    4.3 COMPOSITE V ASSY SIDE A SIDE A COMPOSITE V ASSY C727 C724 C701 C733 C703 C704 C702 IC721 R731 C714 R732 C725 C713 C723 C722 C707 C708 C736 C737 C741 R797 V-5.6V R796 R794 R795 C768 V+5.6V MRSW1 MRSW2 R735 VIDEO1 VIDEO2...

  • Page 66: S Video Assy

    4.4 S VIDEO ASSY SIDE A SIDE A S VIDEO ASSY C884 TV/SAT DVR OUT VIDEO1 MONITOR OUT CN811 CN812 R839 C808 C805 C806 C828 C847 IC842 C807 C835 R847 R814 R848 R835 R849 R894 C848 C823 IC842 R850 C827 R813 IC802 IC801...

  • Page 67: Video Side And Optical-In Assys

    4.5 VIDEO SIDE and OPTICAL-IN ASSYS SIDE A SIDE A VIDEO SIDE ASSY OPTICAL-IN ASSY CMKM-G3X JA963 JA961 JA962 ASSY SIDE VIDEO (ANP7491-A) CN893 CN892 CN891 10.OPT IN 1 9.V+5D 8.GNDD 7.NC 6.GNDD CN751 CN5051 CN851 5.GNDD 4.OPT IN 2 3.GNDD 2.GNDD 1.OPT OUT...

  • Page 68: Component Assy

    4.6 COMPONENT ASSY SIDE A SIDE A COMPONENT ASSY JA5003 R5012 JA5002 JA5001 C5044 C5045 C5046 C5030 C5048 C5047 C5049 X5023 C5032 IC5101 C5041 C5042 C5037 R5079 R5080 C5055 R5060 C5039 X5022 R5035 C5052 R5036 IC5022 C5054 C5115 X5021 IC5052 C5056 C5029 C5028...

  • Page 69: Front In And Front-In Connect Assys

    4.7 FRONT IN and FRONT-IN CONNECT ASSYS SIDE A SIDE A W3374 FRONT IN ASSY W3369 CN3351 C3361 C3362 CN3351 FRONT-IN ASS'Y V-7A W3368 W3375 AWX8381 GNDA W3367 W3361 JA3352 C3383 C3372 C3373 C3384 CN107 1.GNDA (ANP7492-A) 2.V+7 CN3341 3.V-7 4.V+5D CN3341 5.FRONT OPT...

  • Page 70: Main Control Assy

    4.8 MAIN CONTROL ASSY SIDE A MAIN CONTROL ASSY IC382 Q343 Q344 Q365 Q364 IC101 Q323 Q324 Q384 Q383 IC401 IC341 IC361 IC111 Q169 IC451 IC321 Q176 IC381 Q229 Q230 IC106 Q170 CN902 CN951 CN952 CN103 CN104 CN105 C134 CN104 CN105 C133 C149...
  • Page 71 SIDE A Q384 IC105 Q514 Q515 IC103 IC502 Q399 Q483 IC501 Q501 Q502 Q505 IC102 IC104 IC106 CN4053 CN3001 CN106 CN101 C508 R523 R461 R333 R334 R462 R467 R413 R414 R468 Q324 Q383 Q384 Q323 C332 C331 C412 C411 C431 C432 C437 C438...
  • Page 72 SIDE B Q507 Q512 Q482 Q503 Q504 IC504 Q172 IC481 Q517 Q516 Q382 MAIN CONTROL ASSY CN106 Q517 Q516 R296 Q482 V+FAN IC481 V+FAN V-FAN V-FAN LOCKDET TEMP1 Q503 TEMP2 OL-DET R295 DC-DET V-12A R276 V+12A V+5.6U GNDU GNDU WATT FV-C FV-Y Q512...
  • Page 73 SIDE B Q381 Q322 Q342 Q341 Q235 Q386 Q321 Q362 Q361 Q382 Q175 CN105 CN104 C118 R118 R102 R101 C191 C117 C120 NECK8 R360 R359 NECK6 AMUTE SWDET R104 V-12A R103 SBROUT GNDA SBLOUT GNDA ROUT C119 L106 GNDA R106 GNDA LOUT GNDA...

  • Page 74: Display Assy

    4.9 DISPLAY ASSY SIDE A DISPLAY ASSY W3023 W3025 W3027 KEY1 GNDU W3028 MJOGB W3026 MJOGA V3001 3003 3251 GNDU W3049 V+5UH DISPLAY W3051 V+5UH A'SSY W3047 W3050 W3045 W3046 V+5UH W3052 V+5U W3048 GNDU W3061 W3068 W3064 W3062 TUNER TUNING W3065 EDIT...
  • Page 75 SIDE A V+5U W3004 W3006 W3001 GNDU W3003 FLAC2 SWDET W3005 IN ATT BLUE 12VDET W3023 12VTRG W3018 V+5UH 232C MRIN W3015 MIC D IC3002 GNDU GNDU W3016 GNDU D3011 CN101 V+5U 5.6ST W3017 W3019 5.6U 1W WP W3012 D3010 SROUT GNDU W3013...

  • Page 76: Headphone, Volume And Multi Jog Assys

    4.10 HEADPHONE, VOLUME and MULTI JOG ASSYS SIDE A SIDE A VOLUME ASSY S3206 S3205 S3204 S3207 S3208 S3203 S3209 S3202 3201 3201 (ANP7492-A) 3001 MULTI JOG ASSY MECHA SW ASSY S3252 3251 S3254 S3253 3251 (ANP7492-A) (ANP7420-C) 3002 HEADPHONE ASSY HEADPHONE ASS'Y AWX8380 2302...

  • Page 77: Headphone Assy

    SIDE B SIDE B VOLUME ASSY R3206 R3205 R3204 R3210 C3201 R3203 C3202 R3209 R3212 R3202 R3211 R3207 R3208 3201 (ANP7492-A) MULTI JOG ASSY MECHA SW 3251 ASSY C3251 R3254 C3252 R3255 (ANP7420-C) R3251 R3252 (ANP7492-A) HEADPHONE ASSY HEADPHONE ASS'Y HPSW AWX8380 (ANP7492-A)

  • Page 78: Power Amp In Assy

    4.11 POWER AMP IN ASSY SIDE A SIDE A CN905 CN4551 POWER AMP IN ASSY CN4003 CN4002 13.RS 12.AGRS 11.R 1.LS 10.AGR W4011 2.AGLS 9.SBR(C) CN4003 8.AGSBR(C) 4.AGL 7.WT 5.SBL 6.DC 6.AGSBL 5.AMUTE 7.DC 4.VH- 8.OL W4007 3.VH- 9.AMUTE 2.VH+ 10.-VH 1.VH+ 11.-VH...

  • Page 79: Trigger Assy

    4.12 12V TRIGGER ASSY SIDE A SIDE A • For VSX-52TX Only 12V TRIGGER ASSY CN983 C994 W984 C996 Q981 C989 Q991 W983 W981 D983 R989 C991 C995 1.V+12TR 2.GNDTR IC982 C993 3.12DET 4.12 TRG IC982 SIDE PRINTED C983 ASSY TRIGGER CN982 (ANP7494-A)

  • Page 80: Dsp Assy

    4.13 DSP ASSY SIDE A SIDE A • This diagram has four layers. In the two middle layers, mainy Vcc and GND are connected. DSP ASSY C609 C608 L602 C619 R628 C621 C620 JA501 JA502 KN501 C618 L503 C506 R507 R504 L605 R916...
  • Page 81 SIDE B SIDE B • This diagram has four layers. In the two middle layers, mainy Vcc and GND are connected. DSP ASSY IC952 L954 R983 IC952 R981 R977 C914 C915 R978 R811 R956 R957 R812 R808 R955 R954 R820 L804 R821 Q801...

  • Page 82: Power Protect, Power Amp-L And Posi 1 L Assys

    4.14 POWER PROTECT, POWER AMP-L and POSI 1 L ASSYS SIDE A POSI1-L ASSY ASSY POSI1_L POWER AMP-L ASSY (ANP7494-A) POWER AMP_L ASSY 1.NC W4312 2.NC 3.GNDU 4.POSI_1 CMKM-P3X 5.POSI_2 CN4504 6.DC DET 7.OL DET 8.WT 9.NC CN4504 10.NC 11.NC KN4401 IC4101 IC4201...
  • Page 83 SIDE A 13.LS 12.AGLS 11.L P_L ASSY 10.AGL W4306 9.SBL 8.AGSBL 7.DC 6.OL 5.AMUTE 4.-VH 3.-VH CN4503 2.+VH 1.+VH KN4402 W4307 CN4001 W4321 W4320 1.GAMP 2.CG1 CN4401 3.CG2 IC4301 4.CS 5.CS 6.CS W4340 W4353 W4352 W4355 R4319 W4357 J4103 J4104 J4101 CMKM-P3X CMKM-P3X...

  • Page 84: Power Protect Assy

    SIDE B POWER AMP-L ASSY POWER AMP_ R4323 C4328 C4326 R4328 R4326 C4327 R4327 Q4201 13.LS 12.AGLS 11.L 10.AGL 9.SBL 8.AGSBL 7.DC 6.OL 5.AMUTE 4.-VH Q4301 3.-VH 2.+VH 1.+VH 6.CS R4313 5.CS 4.CS 3.CG2 2.CG1 1.GAMP R4483 R4333 R4482 R4331 R4233 R4231 R4334...
  • Page 85 SIDE B POSI1-L ASSY (ANP7494-A) J4501 OWER AMP_L ASSY 1.NC 2.NC 3.GNDU AWX8403 CN4504 4.POSI_1 5.POSI_2 6.DC DET AWX8409 7.OL DET 8.WT 9.NC 10.NC 11.NC Q4201 Q4101 R4213 R4113 R4134 R4234 R4132 R4232 R4233 R4133 R4231 R4131 (ANP7494-A) Q4201 Q4202 Q4102 Q4402 Q4101...

  • Page 86: Power Amp-R And Posi 1 R Assys

    4.15 POWER AMP-R and POSI 1 R ASSYS SIDE A POWER AMP-R ASSY 1.RS 2.AGRS POWER AMP_R 4.AGR 5.SBR(C) CMKM-P3X 6.AGSBR(C) 7.WT 8.DC 9.AMUTE 10.VH- 11.VH- W4275 KN4404 12.VH+ 13.VH+ W4274 CN4002 W4249 C4354 C4353 C4355 C4364 C4351 C4251 IC4351 CN4451 6.AGC 5.CG1...
  • Page 87 SIDE A POSI1-R ASSY J4551 (ANP7494-A) CN4553 11.NC WER AMP_R ASSY 10.GAMP POSI1_R 9.GAMP 8.POSI_1 ASSY CMKM-P3X 7.GNDU 6.POSI_2 5.POSI_2 4.DC DET CN4553 3.OL DET 2.WT 1.NC R4574 KN4403 C4254 C4253 C4153 C4255 C4264 C4151 C4251 C4405 IC4251 IC4151 C4260 C4160 C4259 C4159...
  • Page 88 SIDE B POSI1-R POWER AMP-R ASSY J4551 ASSY (ANP7494-A) 11.NC POWER AMP 10.GAMP CN4553 9.GAMP 8.POSI_1 AWX8404 7.GNDU 6.POSI_2 5.POSI_2 4.DC DET 3.OL DET 2.WT 1.NC Q4251 Q4151 R4263 Q4252 R4402 R4163 R4284 R4282 R4283 R4182 R4183 R4281 R4184 R4181 Q4403 Q4151 Q4252...
  • Page 89 SIDE B R4595 POWER AMP_R ASSY R4575 C4595 R4496 C4496 AWX8404 R4498 C4498 R4497 C4497 1.RS Q4251 2.AGRS 4.AGR 5.SBR 6.AGSBR 7.WT 8.DC 9.AMUTE 10.VH- 11.VH- 12.VH+ 13.VH+ 6.AGC 5.CG1 4.CG2 3.CS 2.CS 1.CS R4284 R4282 R4381 R4383 R4481 R4384 R4485 R4382 (ANP7494-A)

  • Page 90: Regulator Assy

    4.16 REGULATOR ASSY SIDE A REGULATOR ASSY CN111 CN901 CN701 CN951 IC2506 CN2524 CN2521 CN2511 CN2522 IC2514 C2546 C2545 CN2521 W2668 CN2524 CN2522 W2667 W2652 KN2501 W2651 V+2.5A W2650 2506 CN2511 D2537 W2639 J2501 CN2514 D254 ATTENTION 2503 C2528 EN CAS DE REPLACEMENT L2501 DES FUSIBLES IC2513-IC2515 W2676...
  • Page 91 SIDE A CMKM-P3X C2517 C2518 REGULATOR ASSY C2519 Q2501 2509 W2682 W2659 W2669 C2533 L2504 W2658 C2520 W2660 W2666 W2657 W2663 KN2501 W2662 W2656 W2665 W2661 KN2502 C2529 CN2515 D2507 CN2512 W2647 D2542 CN2525 W2646 W2680 2528 2508 2504 V+5.6V V-5.6V W2649 FU2502...
  • Page 92 SIDE B REGULATOR ASSY REGULATOR ASSY AWX8363 AWX8367 AWX8374 AWX8364 AWX8368 AWX8400 AWX8365 AWX8369 0 1 2 3 4 5 6 7 8 9 0 1 2 3 C2531 CN2514 CN2512 CN2525 (ANP7493-A) VSX-52TX...
  • Page 93 SIDE B CN2409 CN2524 CN2521 CN2511 AWX8374 AWX8400 IC2511 D2522 C2507 N2525 CN2515 CN2501 CN2502 CN2503 CN2504 CN2505 2502 VSX-52TX...

  • Page 94: Sp/Ps Assy

    4.17 SP / PS ASSY SIDE A SIDE A SP/PS ASSY CN955 CN2004 R2002 C2002 CN2004 R2009 CN2102 W2017 WHITE RY2001 W2042 R2016 CN2102 CN2101 W2019 R2015 R2003 CN2304 CN2101 L2003 RY2005 2001 R2005 CN2002 R2004 R2011 RY2003 R2014 R2007 CN2006 CN2003 CMKM-P3X...
  • Page 95 SIDE B SIDE B SP/PS ASSY CN2004 10 12 R2019 C2026 D2002 CN2102 D2001 C2025 CN2101 Q2005 R2023 D2010 D2009 R2020 D2004 D2003 R2021 D2006 D2005 R2022 D2008 C2029 D2007 C2028 CN2003 CN2104 CN2006 (ANP7493-A) Q2006 Q2004 Q2002 Q2003 VSX-52TX...

  • Page 96: Trans 2-1, Diode And Vh Tr Assys

    4.18 TRANS 2-1, DIODE and VH TR ASSYS SIDE A SIDE A TRANS 2-1 ASSY POWER H2203 TRANSFORMER GREG H2204 H2202 W2211 2502 H2201 C2216 TRANS 1 R2211 R2210 ASSY C2215 C2205 IC2201 C2201 IC2201 NECK6 NECK8 V-12A R2201 W2209 4001 W2207 TRANS 2-2...
  • Page 97 SIDE B SIDE B TRANS 2-1 ASSY REGa GREG GREG REGb NECK6 NECK8 V-12A CMKM-P3X Q2204 Q2205 Q2203 R2212 2205 Q2231 Q2231 R2231 AWX8376 ASSY DIODE C2231 R2233 D2231 C2211 R2232 R2234 C2212 Q2232 Q2232 D2232 C2232 (ANP7494-C) VH TR ASSY (ANP7493-C) DIODE ASSY VSX-52TX...

  • Page 98: Trans Side Assy

    4.19 TRANS SIDE ASSY SIDE A TRANS SIDE ASSY To Fan CN2301 CN2301 REG D REG D REG V REG VG REG V HPSW SIDE B TRANS SIDE ASSY C2301 CN2301 VSX-52TX...
  • Page 99 SIDE A HPSW CN2303 PRODUCTION CODE CN2302 CMKM-P3X (ANP7493-A) CN2302 2250 SIDE B CN2302 (ANP7493-A) VSX-52TX...

  • Page 100: Trans 2-2, Trans 1 And Primary Assys

    4.20 TRANS 2-2, TRANS 1 and PRIMARY ASSYS SIDE A SIDE A POWER TRANSFORMER EN CAS DES REMPLACEMENT FUSIBLES IC2253 N'UTILISER QUE LA REFERENCE 491004,IC2251 ET IC2252 N'UTILISER QUE LA REFERENCE 491010 DE CHEZ LITTELFUSE INC. TRANS 1 ASSY IC2253 IC2252 C2253 R2251...

  • Page 101: Trans 1 Assy

    SIDE B SIDE B TRANS 2-2 ASSY TRANS 1 ASSY REPLACE WITH SAME TYPE NO.491004 FOR IC2253,491010 FOR IC2251 AND IC2252 MFD. BY LITTELFUSE INC. (ANP7494-A) 2250 (ANP7492-A) PRIMARY ASSY PRIMARY Q1001 Q1001 R1006 R1005 D1004 D1002 C1012 D1001 AWX8384 Q952 AWX8385 EN CAS DE...

  • Page 102: Rear Top Assy

    4.21 REAR TOP ASSY SIDE A SIDE A REAR TOP ASSY HP SW RY AC V+5.6ST GNDST GNDST CN105 RY B RY CS RY HP RY A V+12A V-12A T CE T DI T CLK T DO GNDT FMDET HP SW SY DET RY AC V+5.6ST...

  • Page 103: Pcb Parts List

    5. PCB PARTS LIST NOTES: Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List. 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. When ordering resistors, first convert resistance values into code form as shown in the following examples.
  • Page 104 • CONTRAST OF PCB ASSEMBLIES MULTI CH I/O ASSY AWX8410 and AWX8352 are constructed the same except for the following : Mark Symbol and Description AWX8410 AWX8352 IC604 BD3812F Not used Q671 HN1C03FU(AB) Not used C671- C674 CEAT100M50 Not used C675, C676 CCSRCH101J50 Not used...
  • Page 105 REGULATOR ASSY AWX8364 and AWX8367 are constructed the same except for the following : Mark Symbol and Description AWX8364 AWX8367 D2534, D2535 1SR154-400 Not used C2549 CEAT102M25 Not used CN2504 4P PLUG KM200TA4 Not used 2506 PCB BINDER UEF1040 Not used •...
  • Page 106 Mark No. Description Part No. Mark No. Description Part No. C759 CKSRYB102K50 RESISTORS C715, C716, C743, C746, C751 CKSRYB103K50 All Resistors RS1/16S###J C756, C764, C767, C769-C773 CKSRYB103K50 OTHERS C775-C777 CKSRYB103K50 CN802 17P FFC CONNECTOR 52044-1745 C731, C732, C745, C780 CKSRYB104K25 CN811, CN812 4P MINI DIN SOCKET AKP7043 C796 CKSRYB105K6R3...
  • Page 107 Mark No. Description Part No. Mark No. Description Part No. C506 CKSRYB102K50 IC502 TC74VHC08FT C153, C154, C171, C172 CKSRYB103K50 IC504 TC74VHCT125AFT C191-C193, C215, C216 CKSRYB103K50 IC102-IC106, IC111, IC321, IC341 UPC4570G2-A C235, C236, C257, C258, C266 CKSRYB103K50 IC361, IC401 UPC4570G2-A C277, C278, C297, C298 CKSRYB103K50 Q169, Q170, Q321-Q324 2SC3326...
  • Page 108 Mark No. Description Part No. Mark No. Description Part No. C2207, C2208 CEAT471M2A Q3002, Q3003, Q3005 DTC124EUA RESISTORS Q3004 FMA1A D3002-D3009 1SS355 > R2207, R2208 RD1/2LMF332J D3001 DAN202K > R2202, R2203 RD1/4MUF4R7J D3010 SLI-343DCW(STU) R2210 RD1/4MUF681J > R2205, R2206 RS1LMF472J COILS AND FILTERS Other Resistors RS1/16S###J...

  • Page 109: Primary Assy

    Mark No. Description Part No. Mark No. Description Part No. TRANSFORMERS > T1001 ATT7043 HEADPHONE ASSY CAPACITORS SWITCHES AND RELAYS C3303 CCSRCH471J50 > RY1001 XSR3003 C3304 CKSRYB103K50 C3305 CKSRYB104K25 CAPACITORS C3301, C3302 CKSRYB392K50 > C1002, C1003 (0.01 uF/275V) ACE7013 C1008 CEAT102M25 RESISTORS C1009...
  • Page 110 Mark No. Description Part No. Mark No. Description Part No. CN954 11P FFC CONNECTOR 52045-1145 CN951, CN952 23P SOCKET AKP7075 RESISTORS SCREW PLATE VNE1948 Aii Resistors RS1/16S###J JA951, JA952 4P MINI JACK + SW XKN3015 OTHERS CN983 9P D-SUB SOCKET AKP1213 CN982 KR CONNECTOR...
  • Page 111 Mark No. Description Part No. Mark No. Description Part No. D4303 UDZS10(B) CAPACITORS POWER AMP IN ASSY C4106, C4107, C4206, C4207 ACG7041 SEMICONDUCTORS C4306, C4307 (220uF/100v) ACG7041 IC4451 PA9010A C4102, C4202, C4302 CCSRCH221J50 Q4452 2SA1255 C4112, C4113, C4212, C4213 CCSRCH6R0D50 Q4451 2SC3326 C4312, C4313...
  • Page 112 Mark No. Description Part No. Mark No. Description Part No. IC952 TC74VHCT244AFT CN551 22P FFC CONNECTOR VKN1426 IC871 TC7WH125FU IC951 TC7WH34FU POSI 1 R ASSY IC802 TC7WU04FU Q551 UMD2N OTHERS Q801 UN5212 J4551 ADX7471 D553, D702 DAN202K > TH4503 PTFM04BD222Q2N34B0 D551, D701 DAP202K D901, D902...

  • Page 113: Adjustment

    6. ADJUSTMENT There is no information to be shown in this chapter. VSX-52TX...

  • Page 114: General Information

    7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 PROTECTION CIRCUIT CONTROL SPECIFICATION Microcomputer-related ports If this status continues for more than 3 seconds, the power is DC_PROT (pin 74 of IC501: MAIN CONTROL Assy) turned off (for Standby mode). Input port : For DC detection Do not accept the key input afterward.
  • Page 115 • Overload Detection circuit • DC Detection circuit C512 R534 D506 D507 C513 R541 D509 C4051 R4052 R4500 D4051 D4052 C4406 R4501 C4214 R4214 4.7k 4.7k D4206 R4215 R4216 D4207 R4217 R4218 0.18 0.18 R4219 R4219 VSX-52TX...

  • Page 116: How To Diagnose The Amplifier Section

    7.1.2 HOW TO DIAGNOSE THE AMPLIFIER SECTION When DC detection worked (STBY IND. flashes for a long time) in the protection circuit of foregoing section (or there is not the speaker output, probably only 1CH), failure (damage) of the power amplifier section is considered. Because this receiver cannot diagnose the amplifier section by an electricity state by structure, please diagnose it in the following steps.

  • Page 117: How To Diagnose The Unit With The Power Amplifier Section Removed

    7.1.3 HOW TO DIAGNOSE THE UNIT WITH THE POWER AMPLIFIER SECTION REMOVED Purpose: When repairing this unit, the large Heat Sink Block obstructs access to some Assys. If the Heat Sink Block is removed, as the posistor mounted on it is also disconnected, the protection circuit is activated, which disables failure diagnosis of these Assys while the unit is powered.
  • Page 118 6 Remove the Power Amplifier, leaving the POWER • Remove the POWER PROTECT Assy. PROTECT Assy intact. • In this case, you can easily remove the Power Amplifier if the FFC cable connecting the POWER PROTECT Assy and the MAIN CONTROL Assy has been disconnected on either side.
  • Page 119 ¶ Discharging resistors • Discharging resistors Modified ADX7404 wire with In a case when one resistor is used 3-pin connector Wattage (W) Recommended constant to be used (ohms) 3300 4700 10000 Miscellaneous Three-wire lead ADX7404 Three-core connector RKP1751 Modified RKP1751 3-pin connector Photo 2: Discharging ±VL inside the POWER AMP-L and R Assys Photo 1: Discharging ±VL (SP/PS Assy: C2051, C2052) Discharging of C4403 and C4404 of the POWER AMP-R...

  • Page 120: Disassembly

    7.1.4 DISASSEMBLY Note: Even if the unit shown in the photos and illustrations in this manual may differ from your product, the procedures described here are common. Bonnet Case V1B and Heatsink Section Remove the bonnet case V1B by removing the twenty screws. Remove the two screws.
  • Page 121 Front Panel Section Remove the six screws. Remove the four screws. Disconnect the two flexible cables. Unhook the two hooks. Remove the front panel section. Disconnect the one connector. Top view 3 3 3 HEADPHONE Assy HEADPHONE FRONT-IN FRONT-IN CONNECT Assy Assy Assy...
  • Page 122 Rear Panel and Main Sections Remove the seven screws. Remove the two screws. Remove the three screws. Remove the three screws. Remove the two screws. ×2 Rear view Top view DSP Assy DSP Shield A V1 Side view ×4 DSP Shield A V1 Remove the one screw.
  • Page 123 VIDEO SIDE Assy FM/AM TUNER OPTICAL-IN Assy Unit REAR TOP Assy AUDIO CONNECT Assy MAIN CONTROL Assy DSP Assy 12V TRIGGER Assy (VSX-52TX only) COMPONENT Assy S VIDEO Assy COMPOSITE V Assy MULTI I/O Assy REGULATOR Assy TRANS 1 Assy TRANS 2-2 Assy TRANS 2-1 Assy VH TR Assy...

  • Page 124: Trouble Shooting Of The Dsp Assy

    7.1.5 TROUBLE SHOOTING OF THE DSP ASSY • When a sound is not out in the multi-channel signal playback or surround mode with the digital signal input. (SurroundBack is not out with the setting.) • Suppose CR to be poor contact and that is not damaged. •...
  • Page 125 Step 5: 5 → 3V conversion IC951 Pin 9 Pin 2 Does it convert Does Replace IC952 3V into 5V for it convert 11 pin input? Replace IC951 5V into 3V for 6 pin input? Pin 12 Pin 5 Does it convert Does Replace IC952...
  • Page 126 Step 7: X'tal IC802 IN4 (CD) (pin 42) pin 2 20MHz Is pin 42 Replace IC802 or X801 Replace IC501 outputting inputting it? it ? Front IN (VIDEO2) (pin 7) Is pin 7 Check the FRONT-IN Assy Step 8: DSP output (digital) inputting it? and related path.
  • Page 127 Step 9: Codec output (analog) • Each channel output in the digital signal (–∞ dB (there is no sound) ) input. • Analog output of each channel in the digital signal (there is a sound) input. IC801 IC701 SurroundBack L/R data (pin 4) SurroundBack L out (pin 21) Is the output Replace IC801...
  • Page 128 • Each channel output in the digital signal (–∞ dB (there is no sound) ) input. IC701 SurroundBack L out (pin 21) Is the output Replace IC701 2.5V fixing? SurroundBack R out (pin 22) Is the output Replace IC701 2.5V fixing? Center out (pin 23) Is the output Replace IC701...
  • Page 129 • When MCACC is turned to ON (SurroundBack is not out with the setting.) • Suppose CR to be poor contact and that is not damaged. • This shows failure analysis of DSP Assy. Step 0: Preliminary check Step 3: Regulator IC •...
  • Page 130 Step 5: 5 → 3V conversion IC951 Pin 9 Pin 2 Does it convert Does Replace IC952 3V into 5V for it convert 11 pin input? Replace IC951 5V into 3V for 6 pin input? Pin 12 Pin 5 Does it convert Does Replace IC952...
  • Page 131 Step 7: ROM Step 8: DSP output (digital) • Digital output when indicating each channel IC851 Slave Select (pin 1) IC801 DATA Out (pin 2) SurroundBack L/R data (pin 4) DATA In (pin 5) Is pin 4 Replace IC801 outputting it? Clock In (pin 6) There is movement Center/LFE data (pin 5)
  • Page 132 Step 9: Codec output (analog) • Analog output when indicating each channel IC701 SurroundBack L out (pin 21) Is pin 21 Replace IC701 outputting it? SurroundBack R out (pin 22) Is pin 22 Replace IC701 outputting it? Center out (pin 23) Is pin 23 Replace IC701 outputting it?

  • Page 133: Parts

    7.2 PARTS 7.2.1 IC • The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams. List of IC DSPA56371AF180, AK4628VQE, PD5957A, PE5403A DSPA56371AF180 (DSP ASSY: IC801) • DSP Microcomputer Pin Function Pin Name Pin Function...
  • Page 134 Pin Name Pin Function Active PIINT PLL initial pin RESET Reset MODO Mode select D MODC Mode select C MODB Mode select B MODA Mode select A − VDDCO Core power supply (1.25V) − GNDCO Core GND MUTE DSP MUTE output PE10 General-purpose port General-purpose port...
  • Page 135 AK4628VQE (DSP ASSY: IC701) • 8 ch Codec Pin Function Pin Name Pin Function Active SDOS SDTO source selection Serial control mode selection SMUTE Soft mute BICK Audio serial data clock LRCK Input channel clock SDTI1 DAC1 audio serial data input SDTI2 DAC2 audio serial data input SDTI3...
  • Page 136 PD5957A (MAIN CONTROL ASSY: IC501) (For VSX-52TX) • Main Microcomputer Pin Assignment (Top view) NECK B BIAMP NECK8 BI AMP DISP RST MICSEL DISP RST MI CSEL DISP EN MR MUTE DISP EN MR MU RDS FM+ DISP RDY DISP RDY RDS SW RDS DT OSD/DISP DI...
  • Page 137 Pin Function Pin Name Pin Function Active 12VTRIGGER "H" at ON DISP RST Display microcomputer reset signal L: reset, H: release reset (pulldown) DISP EN Communication enabling signal to the display microcomputer DISP RDY Communication enabling signal from the display microcomputer OSD/DISP DI Communication data out signal with the OSD-IC/display microcomputer (N ch open drain: pullup) DISP DO...
  • Page 138 Pin Name Pin Function Active RY BS Speaker relay B ON/OFF RY C/R Rear / Center relay ON / OFF RY A Speaker relay A ON/OFF RY- HP Headphone relay ON / OFF RY- AC AC relay ON / OFF HP DET Headphone detection H: detected.
  • Page 139 PE5403A (DISPLAY ASSY: IC3001) • Display Microcomputer Pin Assignment (Top view) V Ioad 1 WUP - VF MRSW MR SW MJOGA MJOC A MJOGB MJOG B VENCB VENC B VENCA VENC A DRST DISPRST IC(onetime write) 12TRG 12V TRG INPUT ATT DRDY DISP RDY DCLK...
  • Page 140 Pin Function Pin Name Pin Function Active − VDD(5V)power supply 1WUP Wakeup − MR SW Multi room input Pioneer / others L: Pioneer − MJOG A MULTI JOG input A MJOG B MULTI JOG input B − VENCB 5V Volt(-) −...
  • Page 141 Pin Name Pin Function Active FL p_33s Drive FL p_32s Drive FL p_31s Drive FL p_30s Drive FL p_29s Drive FL p_28s Drive FL p_27s Drive FL p_26s Drive FL p_25s Drive FL p_24s Drive FL p_23s Drive FL p_22s Drive FL p_21s Drive FL p_20s Drive FL p_19s Drive...

  • Page 142: Cleaning

    7.3 CLEANING Before shipping out the product, be sure to clean the following positions by using the prescribed cleaning tools: Position to be cleaned Cleaning tools Fans Cleaning paper : GED-008 VSX-52TX...

  • Page 143: Panel Facilities

    8. PANEL FACILITIES 8.1 FRONT PANEL All the controls on the front panel are explained and/or referenced here. To open the front panel push gently on the lower third of the panel. Front panel VSX-52TX AUDIO/VIDEO MULTI-CHANNEL RECEIVER MODE DVD/LD TV/SAT DVR/VCR VIDEO1...
  • Page 144 10 Front panel controls 20 VIDEO2 INPUT To access the front panel controls, push gently on the lower third portion of the panel with your finger. 21 MCACC SETUP MIC jack Use to connect the supplied microphone. 22 MULTI ROOM controls If you've made multi-room connections use these controls to control the sub room from the main room.

  • Page 145: Display

    8.2 DISPLAY Display SIGNAL DIGITAL DIGITAL VIDEO1 CD - R AUTO ANALOG ADV.SURR. VIR.SB TUNER VIDEO2 SLEEP MU LTI - ROOM ATT AUTO SURR. M ONO STEREO TUNED DE MIDNIGHT LOUDNESS OVER Speaker indicators Matrix decoding format indicators Lights to indicate the current speaker system, A and/or B. 2 PL II SIGNAL SELECT indicators This lights to indicate Pro Logic II / Pro Logic IIx...
  • Page 146 16 SR Lights when the SR+ control mode has been switched on (see Using the SR+ mode with a Pioneer plasma display). 17 SLEEP Lights when the receiver is in sleep mode.

  • Page 147: Remote Control Unit

    8.3 REMOTE CONTROL UNIT Remote control The following are accessed by pressing the RECEIVER button first: INPUT RECEIVER SOURCE SELECT INPUT ATT Attenuates (lowers) the level of an analog input signal to prevent distortion. FL DIMMER Dims or brightens the display. DVD/LD TV/SAT DVR/VCR TV CONT...
  • Page 148 CH +/– (TUNE/ST +/–) /ENTER Use the arrow buttons when setting up your surround Use to select channels when using a TV, VCR, DVR, sound system. Also used to control DVD menus/options etc. and for deck 1 of a double cassette deck player. Use The following DVR controls can be accessed by pressing the TUNE +/–...
  • Page 149 +/– Use to adjust the effect and channel levels, as well 15 MUTE as to change Dolby Pro Logic IIx and Neo:6 Music Mutes the sound or restores the sound if it has been parameter settings. muted (adjusting the volume also restores the sound). SLEEP (SHIFT &...

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