Pioneer VSX-29TX Service Manual

Audio/video multi-channel receiver
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AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-29TX
VSX-27TX
VSX-26TX
VSX-24TX
VSX-D908S
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Type
VSX-29TX
VSX-27TX
KU/CA
CONTENTS
1. SAFETY INFORMATION ...................................... 2
4. PCB CONNECTION DIAGRAM ......................... 48
5. PCB PARTS LIST ............................................... 71
6. ADJUSTMENT .................................................... 83
PIONEER ELECTRONIC CORPORATION
PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
c
PIONEER ELECTRONIC CORPORATION 1999
N∫m¿</ım
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
STANDBY/ON
DSP
STANDBY
MODE
STEREO
/DTS
THX CINEMA
ADVANCED
STANDARD
VIDEO
VCR 1
VCR 2
REFERENCE AUDIO/VIDEO MULTI-CHANNEL RECEIVER
Model
VSX-26TX
VSX-24TX
VSX-D908S
7. GENERAL INFORMATION ................................ 84
7.1 DISASSEMBLY ............................................ 84
7.2 PARTS .......................................................... 86
7.3 REMOTE CONTROL UNIT .......................... 92
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
INPUT
MULTI-ROOM
SELECTOR
& SOURCE
CONTROL
MASTER
DVD/LD
TV/SAT
CD
MD/TAPE1
TUNER
PHONO
VOLUME
MIN
MAX
Power Requirement
AC120V
7.2.1 IC ............................................................ 86
7.2.2 DISPLAY ................................................. 90
T - IZK MAY 1999 Printed in Japan
ORDER NO.
RRV2133
Remarks

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Table of Contents
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Summary of Contents for Pioneer VSX-29TX

  • Page 1: Table Of Contents

    PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936 PIONEER ELECTRONIC CORPORATION 1999 T –...
  • Page 2: Safety Information

    The use of a substitute replacement component which does Leakage 0.5mA current Device not have the same safety characteristics as the PIONEER tester under recommended replacement one, shown in the parts list in test this Service Manual, may create shock, fire, or other hazards.
  • Page 3: Exploded Views And Parts List

    See Contrast table (2) (for Remote Control Unit) Front Pad See Contrast table (2) (2) CONTRAST TABLE VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX and VSX-D908S are constructed the same except for the following : Part No. Mark No. Symbol and Description Remaks...
  • Page 4 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 2.2 EXTERIOR VSX-29TX Only VSX-29TX, VSX-27TX Only 66 (VSX-29TX) 67 (VSX-27TX) VSX-29TX Only (Except (VSX-26TX, VSX-29TX) VSX-24TX, VSX-D908S Only) 66 (VSX-29TX) 67 (OTHERS) 66 (VSX-29TX) 67 (OTHERS) (Except (VSX-29TX) VSX-29TX) (VSX-27TX) 33 13 37 15 Refer to "2.4 FRONT PANEL SECTION".
  • Page 5 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S (1) EXTERIOR PARTS LIST Mark No. Description Part No. Mark No. Description Part No. EXTRA-5.1 Assy See Contrast table (2) Lead Card 28P (J23) ADD7171 EXTERNAL IN Assy See Contrast table (2) Assy Holder See Contrast table (2)
  • Page 6 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S (2) CONTRAST TABLE VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX and VSX-D908S are constructed the same except for the following : Part No. Mark No. Symbol and Description Remaks VSX-29TX VSX-27TX VSX-26TX VSX-24TX VSX-D908S AWX7314 Not used Not used...
  • Page 7 Power Supply Plate ANG7240 Screw BBZ30P080FZK Screw ABA1082 Screw IBZ30P080FCC (2) CONTRAST TABLE VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX and VSX-D908S are constructed the same except for the following : Part No. Mark No. Symbol and Description Remaks VSX-29TX VSX-27TX VSX-26TX VSX-24TX...
  • Page 8 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 2.4 FRONT PANEL SECTION VSX-29TX, VSX-27TX Only VSX-29TX, VSX-27TX Only Except VSX-24TX (Except VSX-24TX) VSX-29TX, VSX-27TX Only...
  • Page 9 Panel Base See Contrast table (2) Magnet AMF7002 Cord Clamper RNH-184 (2) CONTRAST TABLE VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX and VSX-D908S are constructed the same except for the following : Part No. Mark No. Symbol and Description Remaks VSX-29TX VSX-27TX VSX-26TX...
  • Page 10: Block Diagram And Schematic Diagram

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM UNIT AXX7046 CN902 CN1352 IC101 IC102 CN1001 IC351 CN1001 IC103 IC9203 CN104 IC9201 IC9202 CN9801 CN7201 CN906 IC9321 IC9101 IC9151 IC9601 CN9801 IC9071 CN1001 IC9411 IC9421...
  • Page 11 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S OTHERS CN3003 CN7201 IC108 RY3105 IC7501, IC7502 JA7201 +3.5 ~ +8.5dB (Normally : +8.5dB) CN2001 IC104 CN501 CN109 21, 19 Q2501 R2512 IC112 Q510 IC105 8, 10 Q2524 5, 7 CN502 IC107 Q271 IC7541, IC7542...
  • Page 12: Overall Wiring Connection Diagram

    DISPLAY ASSY (VSX-29TX, VSX-27TX : AWX7327) ADD7167 (VSX-26TX : AWX7404) (VSX-24TX : AWX7408) (VSX-D908S : AWX7427) ADD7168 1/2, VOLUME ASSY V-AMP ASSY (AWX7367) (VSX-29TX, VSX-27TX, VSX-26TX : AWX7309) (VSX-24TX, VSX-D908S : AWX7409) VSX-29TX, VSX-27TX ADD7160 OUTPUT-SR ONLY ASSY (AWX7323) OUTPUT-FR ASSY...
  • Page 13 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST". • CAUTION : Heatsink's DC level is equal to +B or -B. Don't touch them or you will be electricary shocked.
  • Page 14 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 3.3 EXTRA-5.1 (EXTERNAL IN), A-PINJACK and CONNECTION ASSYS EXTRA-5.1 ASSY CN1101 (VSX-29TX : AWX7314) EXTERNAL IN ASSY (OTHERS : AWX7398) JA1101-JA1103 ; VSX-29TX : AKB7121 OTHERS : AKB7095 A-PINJACK ASSY (VSX-29TX : AWX7312) (VSX-27TX, VSX-26TX,...
  • Page 15 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S CONNECTION ASSY (AWX7313) CN1302 CN1301 CN103 CN1353 CN1351 CN101 : AUDIO SIGNAL ROUTE (LD) : AUDIO SIGNAL ROUTE (TV) : AUDIO SIGNAL ROUTE (VCR1) : AUDIO SIGNAL ROUTE (VCR2) CN1352 : AUDIO SIGNAL ROUTE (MD)
  • Page 16 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 3.4 MAIN CONTROL ASSY (1/3) : The power supply is shown with the marked box. CN906 52045-0545 CN7005 1SS355 VSX-24TX VSX-27TX, VSX-26TX, 1SS355 VSX-D908S VSX-29TX VSX-24TX ONLY VSX-29TX JA901 : AKB7075 JA911 : AKB7075 VSX-27TX, VSX-26TX, VSX-D908S...
  • Page 17 : AUDIO SIGNAL ROUTE (PHONO) MAIN CONTROL ASSY : AUDIO SIGNAL ROUTE (LD) : AUDIO SIGNAL ROUTE (TUNER) (VSX-29TX : AWX7306)(VSX-24TX : AWX7406) : AUDIO SIGNAL ROUTE (TV) : AUDIO SIGNAL ROUTE (CD) (VSX-27TX : AWX7393)(VSX-D908S : AWX7424) : AUDIO SIGNAL ROUTE (VCR1)
  • Page 18 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 3.5 MAIN CONTROL ASSY (2/3) MAIN CONTROL ASSY (VSX-29TX : AWX7306)(VSX-24TX : AWX7406) (VSX-27TX : AWX7393)(VSX-D908S : AWX7424) (VSX-26TX : AWX7399)
  • Page 19 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S : The power supply is shown with the marked box. : AUDIO SIGNAL ROUTE CN501 CN105 103 or 113 (2/3) 103 or 113 (1/3) 103 or 113 (3/3) VSX-29TX Q107 - Q112 : 103 : AKB7088...
  • Page 20 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 3.6 MAIN CONTROL ASSY (3/3) CN9551 CN902 CN903 1SS355 D905-D908 1SS355 D901-D904 1SS355 CN901 CN920 CN5005 CN5008...
  • Page 21: Main Control Assy

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S : The power supply is shown with the marked box. : AUDIO SIGNAL ROUTE (TUNER) CN7001 MAIN CONTROL ASSY (VSX-29TX : AWX7306) (VSX-24TX : AWX7406) CN904 (VSX-27TX : AWX7393) (VSX-D908S : AWX7424) (VSX-26TX : AWX7399) ∗1...
  • Page 22 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 3.7 V-AMP ASSY (1/2) V-AMP ASSY (VSX-29TX, VSX-27TX, VSX-26TX : AWX7309) (VSX-24TX, VSX-D908S : AWX7409) IC7601 (1/2) UPC4570G2 ∗ IC7501 (1/2) UPC4570G2 ∗ CN501 IC7541 (1/2) UPC4570G2 CN105 ∗ IC7521 (1/2) UPC4570G2 ∗ ∗ VSX-29TX...
  • Page 23 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S VSX-29TX, VSX-27TX, VSX-26TX ONLY : AUDIO SIGNAL ROUTE IC7601 (2/2) UPC4570G2 VSX-29TX, VSX-27TX, VSX-26TX ONLY IC7501 (2/2) UPC4570G2 VSX-29TX, VSX-27TX, VSX-26TX ONLY IC7541 (2/2) UPC4570G2 VSX-29TX, VSX-27TX, VSX-26TX ONLY IC7521 (2/2) UPC4570G2 VSX-29TX, VSX-27TX, VSX-26TX...
  • Page 24 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 3.8 V-AMP ASSY (2/2) CN504...
  • Page 25 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S V-AMP ASSY (VSX-29TX, VSX-27TX, VSX-26TX : AWX7309) (VSX-24TX, VSX-D908S : AWX7409) : AUDIO SIGNAL ROUTE CN502 CN2001...
  • Page 26 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 3.9 C-AMP-N, C-AMP-P, OUTPUT-SL, OUTPUT-FL, OUTPUT-C, OUTPUT-FR, OUTPUT-SR and VL-TERMINAL ASSYS C-AMP-N ASSY 2SC1740C (AWX7318) CN502 CN2001 CN2601 CN2501 OUTPUT-SL ASSY OUTPUT-FL ASSY (AWX7322) (AWX7319) C-AMP-P ASSY (AWX7317) F G HA HB...
  • Page 27 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S : AUDIO SIGNAL ROUTE CN2621 CN2541 CN2521 OUTPUT-C ASSY OUTPUT-FR ASSY OUTPUT-SR ASSY (AWX7321) (AWX7320) (AWX7323) VL-TERMINAL ASSY (AWX7324) HC HD HE...
  • Page 28 CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 49102.5 MFD, BY LITTELFUSE INC. FOR IC4501, IC4502 (AEK7014). CN6003 CN3001 SP/PS ASSY (VSX-29TX, VSX-27TX : AWX7402) (VSX-26TX, VSX-24TX, VSX-D908S : AWX7325) J K L...
  • Page 29 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S HA HE CN3101 CN3102 VSX-26TX VSX-29TX VSX-24TX VSX-27TX VSX-D908S CN5001 3004 CN5002 CN3003...
  • Page 30: Trans 1 Assy

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 3.11 REGULATOR, TRANS 1 and TRANS 2-2 ASSYS REGULATOR ASSY (AWX7310) CN5001 52147-0810 3004 CN5002 TRANS 1 ASSY 5501 (AWX7316) TRANS 2-2 ASSY (AWX7366) CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491.200 MFD, BY LITTELFUSE INC.
  • Page 31 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S : AUDIO SIGNAL ROUTE CN5003 CN108 CN5004 CN104 CN5008 CN920 CN901 CN5005 CN5006 CN5007 CN9801 CN9802...
  • Page 32: Video Assy

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 3.12 VIDEO and S-VIDEO ASSYS VIDEO ASSY (VSX-29TX : AWX7307) (VSX-27TX, VSX-26TX, VSX-D908S : AWX7394) (VSX-24TX : AWX7407) VSX-29TX : AKB7076 VSX-27TX,VSX-26TX,VSX-24TX,VSX-D908S : AKB7017 JA701 VSX-29TX : AKB7109 VSX-24TX : AKB7056 JA703 VSX-29TX : AKB7116...
  • Page 33 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S S-VIDEO ASSY (VSX-29TX : AWX7308) (OTHERS : AWX7395) : AUDIO SIGNAL ROUTE : Y SIGNAL ROUTE : C SIGNAL ROUTE CN802 (2/2) VSX-29TX : AKP7023 OTHERS : AKP7020 JA801 (3/3) VSX-29TX : AKP7049 OTHERS : AKP7043...
  • Page 34 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 3.13 H. PHONE/F. VIDEO, DISPLAY, ROTARY ENCODER and VOLUME ASSYS H. PHONE/F. VIDEO ASSY (AWX7342) DISPLAY ASSY CN7201 CN7004 (VSX-29TX, VSX-27TX : AWX7327) (VSX-26TX : AWX7404) (VSX-24TX : AWX7408) (VSX-D908S : AWX7427) VSX-29TX, VSX-27TX ONLY EXCEPT VSX-D908S...
  • Page 35 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S ROTARY ENCODER ASSY (VSX-29TX, VSX-27TX : AWX7328) (VSX-26TX, VSX-24TX, VSX-D908S : AWX7405) CN7002 CN7101 CN7003 CN7301 VOLUME ASSY (AWX7367) EXCEPT VSX-24TX CN7001 CN904...
  • Page 36: Primary Assy

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 3.14 PRIMARY ASSY PRIMARY ASSY (AWX7311) 1SS133 CN3001 D6001-D6004 : CN6003 S5688G KP200TA4L DTC143ES 1SS133 LIVE FU1 : 10A VEK1029 NEUTRAL AC IN CN6002 RKP1751 2.2M 1/2W • NOTE FOR FUSE REPLACEMENT CAUTION - FOR CONTINUED PROTECTION AGAINST RISK OF FIRE.
  • Page 37 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 3.15 DIGITAL-I/O and RF TERMINAL ASSYS DIGITAL-I/O ASSY (VSX-29TX : AWX7315) (VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S : AWX7396) : AUDIO SIGNAL ROUTE JA1204 (1/2) VSX-29TX : AKB7121 OTHERS : AKB7095 JA1204 (2/2) VSX-29TX : AKB7121 OTHERS : AKB7095...
  • Page 38 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 3.16 DSP ASSY (1/5) DSP ASSY (VSX-29TX, VSX-27TX : AWX7272) (VSX-26TX, VSX-24TX, VSX-D908S : AWX7433) VSX-26TX, VSX-24TX, VSX-D908S ONLY...
  • Page 39 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S VSX-29TX, VSX-27TX ONLY...
  • Page 40 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 3.17 DSP ASSY (2/5) : The power supply is shown with the marked box. DSP ASSY (VSX-29TX, VSX-27TX : AWX7272) : AUDIO SIGNAL ROUTE (VSX-26TX, VSX-24TX, VSX-D908S : AWX7433) CN5007 VSX-29TX, VSX-27TX ONLY CN9804 VSX-26TX, VSX-24TX,...
  • Page 41 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S CN9802 CN5006...
  • Page 42 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 3.18 DSP ASSY (3/5) DSP ASSY (VSX-29TX, VSX-27TX : AWX7272) (VSX-26TX, VSX-24TX, VSX-D908S : AWX7433) PCMD...
  • Page 43 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S : AUDIO SIGNAL ROUTE...
  • Page 44 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 3.19 DSP ASSY (4/5) DSP ASSY (VSX-29TX, VSX-27TX : AWX7272) (VSX-26TX, VSX-24TX, VSX-D908S : AWX7433) VSX-29TX, VSX-27TX ONLY CN9551 CN903...
  • Page 45 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S : AUDIO SIGNAL ROUTE...
  • Page 46 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 3.20 DSP ASSY (5/5) DSP ASSY (VSX-29TX, VSX-27TX : AWX7272) (VSX-26TX, VSX-24TX, VSX-D908S : AWX7433) C9742 - C9744 : VSX-29TX, VSX-27TX ONLY...
  • Page 47 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S : AUDIO SIGNAL ROUTE...
  • Page 48: Pcb Connection Diagram

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 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.
  • Page 49: Connection Assy

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 4.1 EXTRA-5.1 (EXTERNAL IN), A-PINJACK and CONNECTION ASSYS A-PINJACK ASSY CONNECTION ASSY IC1302 IC1351 IC1303 IC1301 CN103 CN101 EXTRA-5.1 (EXTERNAL IN) ASSY (ANP7308-B) SIDE A...
  • Page 50 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 4.2 MAIN CONTROL ASSY CN1302 CN7005 CN701 To FM/AM TUNER UNIT CN1353 CN5003 IC101 Q991 Q272 Q114 Q271 Q113 SIDE A...
  • Page 51 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S MAIN CONTROL ASSY CN9551 CN7001 CN501 (ANP7307-B) CN5004 CN5008 CN5005 IC108 IC114 IC115 IC113...
  • Page 52 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S MAIN CONTROL ASSY Q904 Q901 IC901 Q905 Q903 Q902 IC104 IC105 IC107 IC112 SIDE B...
  • Page 53 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S (ANP7307-B) IC105 Q902 Q251 Q252 Q109 Q110 IC103 IC102 Q107 Q108 IC109 IC110 Q111 Q112...
  • Page 54 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 4.3 V-AMP ASSY V-AMP ASSY CN105 Q561 Q610 Q510 Q550 Q530 Q630 Q7601 Q7501 Q7541 Q7521 Q7621 Q603 Q503 Q543 Q523 Q623 Q607 Q507 Q547 Q527 Q627 Q606 Q506 Q546 Q526 Q626 Q608 Q508 Q548...
  • Page 55 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S V-AMP ASSY IC581 IC7622 IC7522 IC7542 IC7502 IC7602 IC7621 IC7521 IC7541 IC7501 IC7601 Q624 Q524 Q544 Q504 Q604 Q621 Q521 Q541 Q501 Q601 (ANP7310-A) SIDE B...
  • Page 56 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 4.4 C-AMP-N, C-AMP-P, OUTPUT-SL, OUTPUT-FL, OUTPUT-C, OUTPUT-FR, OUTPUT-SR and VL-TERMINAL ASSYS C-AMP-P ASSY VL-TERMINAL ASSY C-AMP-N ASSY CN502 VR2601 VR2501 Q2002 Q2001 Q2603 Q2503 Q2602 Q2502 SIDE A F G HA HB I...
  • Page 57 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S (ANP7309-B) 2501 VR2541 VR2521 VR2621 Q2503 Q2543 Q2523 Q2623 Q2502 Q2542 Q2522 Q2622...
  • Page 58 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 4.5 TRANS 2-1, DIODE, TRANS 1 and TRANS 2-2 ASSYS Y6001 Y6002 TRANS 1 5009 ASSY TRANS 2-2 ASSY (ANP7308-B) (ANP7308-B) POWER TRANSFORMER TRANS 2-1 ASSY IC4501 IC4502 Q4505 Q4502 Q4504 Q4503 Q4501 (ANP7309-B) 3001...
  • Page 59 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 4.6 SP/PS ASSY CN5002 SP/PS ASSY Q3156 Q3159 Q3151 Q3154 Q3005 Q3155 Q3153 Q3152 Q3504 IC3001 Q3502 Q3503 Q3501 (ANP7309-B) CN5001 CN6003 4001 SIDE A...
  • Page 60 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 4.7 REGULATOR and PRIMARY ASSYS CN108 CN104 REGULATOR ASSY IC5010 IC5009 IC5006 IC5005 IC5004 AC IN CN3003 3004 SIDE A...
  • Page 61 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S CN104 CN9801 CN920 CN901 CN9802 5501 IC5002 IC5001 IC5003 IC5007 IC5008 PRIMARY ASSY Y6001 Y6002 NEUTRAL CN3001 AC IN LIVE (ANP7308-B) Q6001 IC6001...
  • Page 62 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 4.8 VIDEO ASSY VIDEO ASSY Q701 Q751 Q753 Q752 Q754 SIDE A CN905 CN804 VIDEO ASSY Q755 IC752 IC751 IC731 SIDE B IC701 (ANP7307-B)
  • Page 63 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 4.9 S-VIDEO ASSY S-VIDEO ASSY Q853 Q852 IC851 Q851 SIDE A CN702 S-VIDEO ASSY IC852 IC831 IC802 Q831 Q833 Q834 IC801 SIDE B (ANP7307-B)
  • Page 64 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 4.10 H. PHONE/F. VIDEO, DISPLAY, ROTARY ENCODER and VOLUME ASSYS VOLUME ASSY Q7301 Q7304 Q7503 Q7502 VR7301 DISPLAY ASSY H. PHONE/F. VIDEO ASSY Q7201 Q7202 Q7401 IC7401 R S U Q7403...
  • Page 65 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S ROTARY ENCODER ASSY CN906 CN904 (ANP7010-A) SIDE A...
  • Page 66 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S ROTARY ENCODER ASSY DISPLAY ASSY Q7053 Q7052 Q7002 Q7005 IC7001 IC7051 Q7051 Q7054...
  • Page 67 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S VOLUME ASSY Q7001 (ANP7010-A) H. PHONE/F. VIDEO ASSY IC7071 R S U SIDE B...
  • Page 68 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 4.11 DSP ASSY CN1201 CN1250 DSP ASSY IC9151 Q9001-Q9003 Q9032 Q9004-Q9007 Q9101-Q9104 IC9071 IC9091 IC9101 Q9201-Q9204 IC9102 IC9204 IC9501 IC9203 IC9103 IC9601 IC9401 IC9602 IC9311 IC9321 CN5007 IC9361 IC9411 IC9601 Q9603 IC9371 IC9421 IC9372 Q9605...
  • Page 69 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S DSP ASSY IC9041 IC9201 Q9205 IC9202 IC9701 IC9602 IC9702 IC9703 IC9603 IC9704 IC9604 IC9705 (ANP7311-B) SIDE B...
  • Page 70 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 4.12 DIGITAL-I/O and RF TERMINAL ASSYS DIGITAL-I/O ASSY RF TERMINAL ASSY CN9804 CN9803 SIDE A RF TERMINAL (ANP7307-B) DIGITAL-I/O ASSY ASSY SIDE B...
  • Page 71: Pcb Parts List

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S Mark No. Description Part No. Mark No. Description Part No. 5. PCB PARTS LIST • NOTES: 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 72 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S Mark No. Description Part No. Mark No. Description Part No. MAIN CONTROL ASSY AWX7306, AWX7393, AWX7399, AWX7406 and AWX7424 are constructed the same except for the following : Part No. Mark Symbol and Desacription Remarks...
  • Page 73 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S Mark No. Description Part No. Mark No. Description Part No. SP/PS ASSY AWX7402 and AWX7325 are constructed the same except for the following : Part No. Mark Symbol and Desacription Remarks AWX7402 AWX7325 D3052, D3054, D3056, D3058, D3060...
  • Page 74 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S Mark No. Description Part No. Mark No. Description Part No. DSP ASSY AWX7272 and AWX7433 are constructed the same except for the following : Part No. Mark Symbol and Desacription Remarks AWX7272 AWX7433 IC9041 NJM4558MD...
  • Page 75: External In Assy

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S Mark No. Description Part No. Mark No. Description Part No. Part No. Mark Symbol and Desacription Remarks AWX7272 AWX7433 R9061 RS1/16S471J Not used R9075, R9076 RS1/16S101J Not used R9153 Not used RS1/16S0R0J CN9804 3P PLUG...
  • Page 76 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S Mark No. Description Part No. Mark No. Description Part No. D254,D255,D901-D910,D991 1SS355 V-AMP ASSY D995 UDZ11B D201,D202,D256 UDZS5.1B SEMICONDUCTORS IC581 BU4052BCF COIL NJM4558MD IC7502,IC7522,IC7542,IC7602,IC7622 L901 CHIP COIL LCTA2R2J3225 IC7501,IC7521,IC7541,IC7601,IC7621 UPC4570G2 Q503,Q523,Q543,Q603,Q623 2SA1048 CAPACITORS Q506,Q509,Q526,Q529,Q546 2SA970...
  • Page 77 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S Mark No. Description Part No. Mark No. Description Part No. RESISTORS OUTPUT-SL ASSY R518,R538,R558,R618,R638 RD1/4MUF473J R513,R514,R533,R534 RS1/10S121J RESISTOR R553,R554,R613,R614 RS1/10S121J R2612 (0.05Ω/5W) ACN7097 R633,R634 RS1/10S121J Other Resistors RS1/10S OTHERS CN2603 5P SOCKET KP250NA5 OTHERS CN2602 7P SOCKET...
  • Page 78 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S Mark No. Description Part No. Mark No. Description Part No. OTHERS TRANS 2-1 ASSY 3004 8P CABLE HOLDER 51048-0800 3001 9P CABLE HOLDER 51048-0900 SEMICONDUCTORS CN3003 14P FFC CONNECTOR 52045-1445 IC4501,IC4502 (2.5A) AEK7014 CN3101 8P SPEAKER TERMINAL AKE7033...
  • Page 79 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S Mark No. Description Part No. Mark No. Description Part No. TRANS 2-2 ASSY S-VIDEO ASSY SEMICONDUCTOR SEMICONDUCTORS IC5501 (4A) AEK7018 IC831 BU4051BCF IC852 BU4053BCF IC851 LA7213 OTHERS IC801,IC802 NJM2296M 5501 4P CABLE HOLDER 51048-0400 Q852,Q853...
  • Page 80: Volume Assy

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S Mark No. Description Part No. Mark No. Description Part No. OTHERS RESISTORS CN7201 12P FFC CONNECTOR 52045-1245 All Resistors RS1/10S CN7202 FRONT PIN JACK 4P AKX7007 JA7201 HEADPHONE JACK RKB1014 OTHERS KN7201 EARTH METAL FITTING...
  • Page 81: Dsp Assy

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S Mark No. Description Part No. Mark No. Description Part No. IC9311 TC7WT241FU DIGITAL-I/O ASSY IC9204,IC9361 TC7WU04FU IC9601 TC9164AF SEMICONDUCTORS IC9705 UPC4570G2 IC9321 XCD56362PV100 IC1201 TC74HCU04AF Q9007 2PB709A COILS AND FILTERS Q9003,Q9032 2PD601A F1203,F1204 CHIP BEAD...
  • Page 82 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S Mark No. Description Part No. Mark No. Description Part No. C9611,C9612 CCSRCH821J25 R9393 RS1/10S2001F C9312,C9643,C9644,C9756 CEJA100M25 R9074,R9128 RS1/10S221J C9071,C9393,C9501,C9740,C9801 CEJA101M10 R9120 RS1/10S331J C9442 CEJA221M10 R9061 RS1/10S471J C9343,C9360 CEJA221M6R3 R9360 RS1/10S472J C9216,C9219,C9222,C9403,C9405 CEJA330M10 R9391 RS1/10S5100F C9408,C9413,C9415,C9418,C9423...
  • Page 83: Adjustment

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 6. ADJUSTMENT 6.1 IDLE CURRENT ADJUSTMENT • CAUTION : Heatsink's DC level is equal to +B or -B. Don't touch them or you will be electricary shocked. 1. Decrease the level of the Adjustment Variable resistors (VR) for the channel to be adjusted. ( Turn counterclockwise.) 2.
  • Page 84: General Information

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 7. GENERAL INFORMATION 7.1 DISASSEMBLY C-AMP-N and C-AMP-P ASSYS ×2 ×2 ×2 ×3 Remove six PCBs. ×2 OUTPUT ×2 -SR Assy OUTPUT -FR Assy ×2 VL-TERMINAL OUTPUT OUTPUT OUTPUT Assy -SL Assy -FL Assy -C Assy ×4...
  • Page 85 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S DIODE, REGULATOR and Other ASSYS SP/PS Assy VIDEO Assy S-VIDEO Assy PRIMARY Assy A-PINJACK Assy EXTRA-5.1 Assy (VSX-29TX) EXTERNAL IN ASSY (OTHERS) TRANS2-1 Assy DIGITAL I/O Assy CONNECTION Assy TRANS1 Assy TUNER MODULE MAIN CONTROL Assy...
  • Page 86: Parts

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 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 PD5507A, PD5506A PD5507A (DISPLAY ASSY : IC7001) •...
  • Page 87 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S • Pin Function Pin Name Function Pin Name Function XANTECH O XANTECH ON/OFF 51 G7 Grid output 7 KEY 2 Key scan input 2 52 G8 Grid output 8 KEY 3 Key scan input 3...
  • Page 88 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S PD5506A (MAIN CONTROL ASSY : IC901) • Main Control IC • Pin Assignment (Top View) P20/BUZ02 TEMP IN P75/AN5 OSD CS /FLD00 A MUTE P74/AN4 P21/FLD01 OSD RST HCS1 P73/AN3 P22/FLD02 2279 SW1 HRST P72/AN2...
  • Page 89 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S • Pin Function Pin Name Function Pin Name Function O/open (KU,J,SD), I/Fan temperature A/D Audio mute ON/OFF for sub room (MR&S, TEMP IN 41 MR MUTE input (other) MR model only) A MUTE O Audio mute ON/OFF...
  • Page 90: Display

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 7.2.2 DISPLAY AAV7063 (DISPLAY ASSY :V7001) • FL Indicator Tube • Pin Assignment • Grid Assignment...
  • Page 91 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S • Anode and Grid Connection F1, F2 : Filament G1 to G16 : Grid S1 to S36 : Anode D : External connect to F1 NP: No Pin NL : Lead H : Power supply grid usually (ec level = Apply Typ 35.0 VDC)
  • Page 92: Remote Control Unit

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 7.3 REMOTE CONTROL UNIT 7.3.1 AXD7216 (CU-VSX158) 7.3.1.1 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.
  • Page 93: Parts List

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S • PARTS LIST Mark No. Description Part No. PWB Assy RRC4–7251–01 PCB Assy AZC7296 • • • • • • • • • • Terminal A 411RRC15801R Terminal B 411RRC15901R Jumper Cable E–AA1446–001 EL Module...
  • Page 94: Schematic Diagram

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 7.3.1.2 SCHEMATIC DIAGRAM TABLET 2 3 4 5 6 7 8 DTA114YKA DTA114YKA 2SK2009 D6 - D9 ISS226 DTC114YKA C10 - C13 1000p C11 C12 C13 R27 1k R28 1k P107 R29 1k P107 P106...
  • Page 95 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 1 2 3 4 5 6 7 8 9 10 IC16 IC15 (1/2) IC18 BCLK BCLK M30612MCA-228GP ALE/P56 13 IC15 (2/2) 6.8k 2.2/50 6.8k 2.7/50 6.8k X1 4MHz 3.3/50 6.8k 2,2/50 SB330A30FS 2SK7119 VOIN 6.8k...
  • Page 96 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 7.3.1.3 PCB DIAGRAM IC6 IC7 IC9 IC8 IC15 M30622 7474 IC15 IC16 IC17 IC5 IC18 SB330A30FS BA10324AF IC10 IC10 M6627AFP SIDE A...
  • Page 97 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S SIDE B...
  • Page 98 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 7.3.2 AXD7212 (CU-VSX159) and AXD7213 (CU-VSX161) 7.3.2.1 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.
  • Page 99 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 7.3.2.2 PCB DIAGRAM C11 R76 R8 R13 M30622MA 8MHz T6 T7 SIDE A SIDE B...
  • Page 100 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 7.3.2.3 SCHEMATIC DIAGRAM D4 - D36 AZC7292 M.OPE SYS OFF DVD/LD TV/SAT 100k 100k 100k 100k 100k 100k 100k 100k 100k 100k 100k 100k 100k 100k 100k 100k 100k AZC7285 P107 P106 P105 P104 P103...
  • Page 101 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S TC74HC07AF VCR1 VCR2 TUNER TVCONT. DTA114TS DTA114TS CURSOR ALL KEY TC74HC08AF 100k 100k 100k 100k 100k 74HC08 1/4W 1/4W 1/4W AZC7291 AZC7291 AZC7291 2SC3265 2SC3265 2SC3265 100k 100k 1SS355 2SC2712 2SA1037K 4.7k 470p SPS-503C-3 DTC114TK...
  • Page 102 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 7.3.2.4 PCB PARTS LIST • NOTES: 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 103: Panel Facilities And Specifications

    7 Remote sensor Use to hook up an external component that can decode Point the remote control toward the remote sensor to other types of signals and input them into the VSX-29TX. operate the receiver. ! DIRECT button 8 Source indicators Switches DIRECT playback on or off.
  • Page 104: Memory Button

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S ~ ! @ # $ % ^ & VSX-29TX N∫m¿</ım AUDIO/VIDEO MULTI-CHANNEL RECEIVER INPUT STANDBY/ON MULTI-ROOM SELECTOR STANDBAY STEREO MODE & SOURCE /DTS THX CINEMA ADVANCED STANDARD CONTROL MASTER VIDEO VCR 1 VCR 2 DVD/LD...
  • Page 105 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S ~ ! @ # $ % ^ & VSX-27TX 3 4 5 9 0 - N∫m¿<≥ım AUDIO/VIDEO MULTI-CHANNEL RECEIVER INPUT STANDBY/ON MULTI-ROOM SELECTOR STANDBAY MODE STEREO & SOURCE /DTS THX CINEMA ADVANCED STANDARD CONTROL MASTER...
  • Page 106: Stereo Indicator

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S Display (VSX-29TX) All the display information is explained and /or referenced here. SIGNAL LOUDNESS MIDNIGHT STEREO VOLUME PRO LOGIC SELECT OVER ANALOG SP DIGITAL DIGITAL AC-3RF MONO STEREO TUNED AMFM TAPE 2 AUTO AC-3DTS LS LS RS...
  • Page 107: Function Buttons

    (satellite tuner) mode. This button turns off components in two ways. First, when VCR 1 : Press to switch the remote control into VCR 1 pressed it will turn off all PIONEER components. mode. Secondly, any component that has programmed into the VCR 2 : Press to switch the remote control into VCR 2 SYSTEM OFF settings will be turned off.
  • Page 108: Basic Receiver Lcd Screens

    Use to hook up an external component that can decode Switches DIRECT playback on or off. Use to bypass the other types of signals and input them into the VSX-29TX. tone controls and channel level for the most accurate 7 TAPE 2 MONITOR button reproduction of a program source.
  • Page 109: Menu Button

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S Remote Control Unit (VSX-27TX/VSX-26TX/VSX-24TX/VSX-D908S) These pages describe the buttons on the remote control used to operate the receiver. SOURCE button Use to turn on the power of your other components after you have recalled or taught the signals to this remote Î...
  • Page 110: Dsp Button

    REMOTE SETUP button and the SIGNAL = SYSTEM OFF button SELECT button simultaneously once again. This button turns off components in two ways. First, when pressed it will turn off all PIONEER components. & /dts buttons Secondly, any component that has programmed into the Press these buttons to put the receiver in the selected MULTI OPERATIONS settings will also be turned off.
  • Page 111: Audio Components Connections

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S Audio Components Connections To begin set up connect your audio components to the jacks as shown below. These are all analog connections and your analog audio components (turntable, cassette deck) use these jacks. Remember that for components you want to record with you need to hook up four plugs (a set of stereo ins and a set of stereo outs), but for components that only play (like a turntable) you only need to hook up one set of stereo plugs (two plugs).
  • Page 112: Specifications

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S 8.2 SPECIFICATIONS VSX-29TX : FM Tuner Section Continuous average power output of 120 Frequency Range ........87.5 MHz to 108 MHz watts* per channel, min., at 6 ohms, from 20 Usable Sensitivity ..... Mono: 13.2 dBf, IHF (1.3 µV/75 Ω) Hz to 20,000 Hz with no more than 0.09 %**...
  • Page 113: Video Section

    VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S VSX-27TX : Measured pursuant to the Federal Trade Commission’s Trade Regulation rule on Power Output Claims for Amplifiers. Amplifier Section ** Measured by Audio Spectrum Analyzer. Continuous average power output of 120 VIDEO Section watts* per channel, min., at 6 ohms, from 20 Input (Sensitivity/Impedance) Hz to 20,000 Hz with no more than 0.09 %**...
  • Page 114 VSX-29TX, VSX-27TX, VSX-26TX, VSX-24TX, VSX-D908S Accessories (VSX-29TX) FM wire antenna AM loop antenna “AA” IEC LR6 Remote control unit Touch pen Cushion for (ADH1015) (ATB7009) batteries x 4 (CU-VSX158 : AXD7216) (E-AA1445-001) Remote x 4 (AXG7080) Accessories (VSX-27TX/VSX-26TX/VSX-24TX/VSX-D908S) Remote control unit...

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