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Pioneer VSX-55TXi Service Manual

Audio/video multi-channel receiver
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AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-55TXi
VSX-53TX
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type
VSX-55TXi
KUXJI/CA
VSX-53TX
KUXJI/CA
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 2003
Power Requirement
AC120V
AC120V
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
VSX-55TXi
T-ZZK JUNE 2003 printed in Japan
ORDER NO.
RRV2788
Remarks

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Summary of Contents for Pioneer VSX-55TXi

  • 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

    3.12 POWER AMP IN, FAN CONNECTION and FAN DRIVE ASSYS............44 3.13 DSP ASSY (1/2) .............................46 3.14 DSP ASSY (2/2) .............................48 3.15 1394 ASSY (1/2) (VSX-55TXi ONLY) .....................50 3.16 1394 ASSY (2/2) (VSX-55TXi ONLY) .....................52 3.17 DISPLAY ASSY ............................54 3.18 VOLUME, MULTI JOG and HEADPHONE ASSYS ................56...
  • Page 4 7.1.3 TROUBLE SHOOTING ........................149 7.1.4 DISASSEMBLY..........................154 7.2 PARTS..............................157 7.2.1 IC ..............................157 7.2.2 DISPLAY............................171 7.3 CLEANING............................. 173 7.4 REMOTE CONTROL UNIT ........................174 7.4.1 EXPLODED VIEWS AND PARTS LIST (VSX-55TXi : AXD7325) ........... 174 8. PANEL FACILITIES ............................175 VSX-55TXi...

  • Page 5: Specifications

    THX and Dolby Laboratories, and is a trademark of Dolby Laboratories. All rights reserved. Used under authorization. • Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic”, “Surround EX” and double-D symbol are trademarks of Dolby Laboratories. • "DTS", "DTS-ES Extended Surround" and "Neo:6" are trademarks of Digital Theater Systems, Inc. VSX-55TXi...

  • Page 6: Exploded Views And Parts List

    Operating Instructions SETUP RECEIVER SOURCE MULTI SYSTEM "AA" IEC LR6 batteries Operating Instructions OPERATION MULTI CONTROL S0URCE SYSTEM RECEIVER (VSX-55TXi : ARB7284) DVD/LD TV / SAT VCR/DVR TV CONT VCR 2 TUNER RECEIVER (VSX-53TX : ARB7285) VCR1/ DVD/LD TV/SAT TV CONT...
  • Page 7 See Contrast table (2) Operating Instructions (English) See Contrast table (2) NSP 8 Polyetylene Bag Z21-038 (0.03*230*340) (2) CONTRAST TABLE VSX-55TXi/KUXJI/CA and VSX-53TX/KUXJI/CA are constructed the same except for the following: VSX-55TXi VSX-53TX Mark Symbol and Description /KUXJI/CA /KUXJI/CA Operating Instructions (English)

  • Page 8: Exterior Section

    2.2 EXTERIOR SECTION (VSX-53TX) (x4) (x10) (VSX-55TXi) (VSX-53TX) Refer to "2.3 REAR PANEL SECTION." (VSX-55TXi) VSX-55TXi Refer to ONLY "2.4 HEAT SINK SECTION." VSX-53TX ONLY 29 42 61 52 (VSX-55TXi) VSX-55TXi ONLY Refer to "2.5 FRONT PANEL SECTION." VSX-55TXi...
  • Page 9 FU4,FU5 Fuse (3.15A) REK1114 Screw See Contrast table (2) NSP 33 Trans Label 45 AAX7957 (2) CONTRAST TABLE VSX-55TXi/KUXJI/CA and VSX-53TX/KUXJI/CA are constructed the same except for the following: VSX-55TXi VSX-53TX Mark Symbol and Description /KUXJI/CA /KUXJI/CA SP/PS Assy AWX8307...

  • Page 10: Rear Panel Section

    2.3 REAR PANEL SECTION (VSX-55TXi only) (VSX-53TX only) (VSX-55TXi only) (VSX-55TXi only) For Exterior Sction (VSX-53TX) For Exterior Sction (VSX-55TXi only) For Heat Sink Sction For Exterior Sction For Front Sction For Exterior Sction For Exterior Sction VSX-55TXi only For Exterior Sction...
  • Page 11 J17 10P FFC/60V See Contrast table (2) Screw ABA1208 Screw with Terminal See Contrast table (2) (2) CONTRAST TABLE VSX-55TXi/KUXJI/CA and VSX-53TX/KUXJI/CA are constructed the same except for the following: VSX-55TXi VSX-53TX Mark Symbol and Description /KUXJI/CA /KUXJI/CA RS232C Assy...

  • Page 12: Heat Sink Section

    2.4 HEAT SINK SECTION For Rear Panel Sction VSX-55TXi...
  • Page 13 Speed Clamp AEC7445 H.S Angle 45 ANG7404 Fan Holder 80 ANG7407 > Fan Motor AXM7023 J14 24P FFC/60V ADD7357 NSP 13 Wire Saddle DEC1450 Screw BBZ30P100FCC • • • • • • Screw BBZ30P300FMC Screw ABA7085 > TH1 Thermistor AEX7004 VSX-55TXi...

  • Page 14: Front Panel Section

    2.5 FRONT PANEL SECTION 19-2 18 (VSX-55TXi ONLY) CUT (19-2) CUT (19-3 : VSX-53TX ONLY) 19-1 VSX-55TXi...
  • Page 15 AMB7803 Screw ABA7009 19-2 Magnet Holder 19-3 Screw Cover Cushion Circle 6B AED7044 (2) CONTRAST TABLE VSX-55TXi/KUXJI/CA and VSX-53TX/KUXJI/CA are constructed the same except for the following: VSX-55TXi VSX-53TX Mark Symbol and Description /KUXJI/CA /KUXJI/CA DISPLAY Assy AWX8315 AWX7983 18 FL Sheet 45R...

  • Page 16: Block Diagram And Schematic Diagram

    3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM 3.1.1 AUDIO BLOCK DIAGRAM IC1681 CN1802 CN101 VSX-55TXi DSP ASSY PCM2902EG JA1681 (1/2)(20P) (1/2)(20P) ONLY DIGITAL COAXIAL IN Resceiver IC201 USB AUDIO OUT2 ASSY AK4114VQ DIR & DIT JA1801 IN 3...

  • Page 17: Headphone Assy

    MR Volume UPC4570G2 SW Amp. MR L MULTI-ROOM & SOURCE V1/OUT V1OL V2/OUT V2OL INPUT CONNECT ASSY CN1205 (3/3) CN1408 (9P) VCR1 CN1308 (9P) CN1201 7.1 CH I/O ASSY (2/2) CN1303 SUB WOOFER VCR2 CENTER FRONT CN1304 SURROUND SURROUND BACK VSX-55TXi...

  • Page 18: Dsp Block Diagram

    3.1.2 DSP BLOCK DIAGRAM DSP ASSY IC101 CN301 AK5380VT IC201 CN1802 AK4114VQ DIR & DIT CN651 CN401 IC701 TC74VHC157FT SELECTOR IC302 IS61LV6416-12T SRAM IC301 DSPC56367PV150 DECODER IC303 DSP1 IS63LV1024-12T SRAM IC705 TC7SH04FU IC706 INVERTER TC7SH04FU IC305 TC7W125FU 3 STATE BUFFER INVERTER CN402 VSX-55TXi...
  • Page 19 IC501 AK4383VT IC521 AK4383VT IC503 TC7SH04FU BUFFER IC541 AK4383VT IC561 AK4382AVT IC401 DSPC56367PV150 DSP2 VSX-55TXi...

  • Page 20: 1394 Block Diagram

    3.1.3 1394 BLOCK DIAGRAM 1394 ASSY VSX-55TXi...

  • Page 21: Power Amp Block Diagram

    3.1.4 POWER AMP BLOCK DIAGRAM VSX-55TXi...

  • Page 22: Video Block Diagram

    JA901 Y Selector (2/2) VIDEO VIDEO VCR2 OUT1 S VIDEO VCR2 OUT2 S VIDEO OUT3 JA903 (1/2) JA902 (2/2) VIDEO VIDEO DVD/ S VIDEO OUT1 VCR1/DVR S VIDEO OUT2 VIDEO OUT3 S VIDEO IC932 NJM2596M C Selector VIDEO ASSY VSX-55TXi...
  • Page 23 VSX-55TXi...

  • Page 24: Overall Wiring Diagram

    3.2 OVERALL WIRING DIAGRAM DISPLAY ASSY (VSX-55TXi : AWX8315) (VSX-53TX : AWX7983) VOLUME ASSY (AWX7971) MIC & F.OPT IN FRONT IN ASSY (AWX7981) ASSY (AWX7977) HEADPHONE MIC AMP ASSY ASSY (AWX7980) (AWX8004) POWER AMP IN ASSY (AWX7982) POWER AMP-C ASSY...
  • Page 25 FAN DRIVE ASSY (AWX7976) POWER TRANSFORMER (ATS7328) FU4, FU5 : REK1114 (3.15A/125V) TRANS 2-1 ASSY (AWX8326) DIODE ASSY (AWX8017) SP/PS ASSY (VSX-55TXi : AWX8307) (VSX-53TX : AWX7975) PRIMARY ASSY (AWX7968) FU1 : VEK1029 (10A/125V) AC IN POWER CORD : VDG1075 VSX-55TXi...

  • Page 26: Ch I/O, V-Audio, Front In And Optical In Assys

    3.3 7.1 CH I/O, V-AUDIO, FRONT IN and OPTICAL IN ASSYS 7.1 CH I/O ASSY (VSX-55TXi : AWX8306) (VSX-53TX : AWX7973) CN1301-CN1304 ; VSX-55TXi : AKB7075 VSX-53TX : AKB7015 FRONT CN1407 SURROUND (SB) CN1406 CENTER (SB) WOOFER (SB) (SB) SURROUND...
  • Page 27 MR Mute (MR) (MR) V-AUDIO ASSY (VSX-55TXi : AWX8313) (VSX-53TX : AWX7964) : AUDIO SIGNAL ROUTE (Lch) (MR) : AUDIO SIGNAL ROUTE (MULTI-ROOM Lch) (DVD) : AUDIO SIGNAL ROUTE (DVD Lch) VCR1 : AUDIO SIGNAL ROUTE (FRONT Lch) : AUDIO SIGNAL ROUTE (SURROUND Lch)

  • Page 28: Input Connect, Rs232C And 12V Trigger Assys

    : AUDIO SIGNAL ROUTE (FRONT Lch) (MR) (MR) (MR) : AUDIO SIGNAL ROUTE (SURROUND Lch) (SB) : AUDIO SIGNAL ROUTE (SURROUND BACK Lch) : AUDIO SIGNAL ROUTE (CENTER ch) (MR) CN1307 (SB) (SB) CN1306 (SB) (SB) (SB) CN1308 SW Amp. VSX-55TXi...
  • Page 29 VSX-55TXi ONLY RS232C ASSY (AWX7966) CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491.125 MFD, BY LITTELFUSE INK. FOR IC1932. 12V TRIGGER (DC OUT 12V/100mA MAX) MULTI-ROOM & SOURCE REMOTE IN RS-232C Transceiver...

  • Page 30: Coaxial In Assy

    3.5 COAXIAL IN ASSY COAXIAL IN ASSY (VSX-55TXi : AWX8300) (VSX-53TX : AWX8323) JA1802 (1/2) VSX-55TXi : AKB7148 VSX-53TX : AKB7131 IN 3 (CD-R/TAPE1) IN 4 (CD) JA1802 (2/2) VSX-55TXi : AKB7148 VSX-53TX : AKB7131 (UD) (UD) (UD) CN101 CN2406...
  • Page 31 : AUDIO SIGNAL ROUTE (DIGITAL) (UD) : AUDIO SIGNAL ROUTE (USB DIGITAL) VSX-55TXi ONLY USB Receiver (UD) DIGITAL USB AUDIO (UD) (UD) (UD) (UD) (UD) : The power supply is shown with the marked box. VSX-55TXi...

  • Page 32: Component Assy

    3.6 COMPONENT ASSY JA1001, JA1002 ; VSX-55TXi : VKB1151 Component Signal VSX-53TX : VKB1150 Selector (PB) (PB) (PB) (PR) (PR) (PB) (PB) (PB) (PR) (PB) (PR) (PR) (PB) (PR) COMPONENT ASSY (VSX-55TXi : AWX8293) (VSX-53TX : AWX8295) CN2404 VSX-55TXi...
  • Page 33 : The power supply is shown with the marked box. JA1003 ; VSX-55TXi : VKB1151 VSX-53TX : VKB1150 (PB) (PB) (PR) (PR) (PB) (PR) (PR) : VIDEO SIGNAL ROUTE (Y) (PB) : VIDEO SIGNAL ROUTE (P (PR) : VIDEO SIGNAL ROUTE (P...

  • Page 34: Video Assy

    3.7 VIDEO ASSY VIDEO ASSY (VSX-55TXi : AWX8311) (VSX-53TX : AWX7962) JA901 ; VSX-55TXi : AKB7160 VSX-53TX : AKB7147 VIDEO S VIDEO JA902 ; VSX-55TXi : AKB7160 VSX-53TX : AKB7147 VIDEO S VIDEO JA903 ; VSX-55TXi : AKB7160 VSX-53TX : AKB7147...
  • Page 35 (MR) : VIDEO SIGNAL ROUTE (MULTI-ROOM) (SY) : VIDEO SIGNAL ROUTE (S VIDEO Y ch) (SC) : VIDEO SIGNAL ROUTE (S VIDEO C ch) JA905 ; VSX-55TXi : VKB1156 VSX-53TX : VKB1122 MULTI-ROOM (MR) (MR) & SOURCE Composite MONITOR OUT Buffer JA904 ;...

  • Page 36: Main Control Assy (1/3)

    3.8 MAIN CONTROL ASSY (1/3) MAIN CONTROL ASSY (VSX-55TXi : AWX8285) (VSX-53TX : AWX8289) CONTROL (TX) JA113 ; VSX-55TXi : VKB1133 VSX-53TX : VKB1132 (CD-R) (CD-R) CD-R (CD-R) (TX) TAPE1 PLAY CD-R TAPE1 (CD-R) TAPE2 Main Function PLAY TAPE2 JA111, JA112 ;...
  • Page 37 CN601 CN1403 VSX-55TXi ONLY (SB) Input Buffer R135, R136 VSX-55TXi : 9.1k / Phono Flat Gain VSX-53TX : 0 Sub Function (MR) Buffer for MR : AUDIO SIGNAL ROUTE (Lch) (CD-R) : AUDIO SIGNAL ROUTE (CD-R Lch) (TX) : AUDIO SIGNAL ROUTE (TUNER Lch)

  • Page 38: Main Control Assy (2/3)

    3.9 MAIN CONTROL ASSY (2/3) MAIN CONTROL ASSY (VSX-55TXi : AWX8285) (VSX-53TX : AWX8289) Preamp. & Main (Master) Volume 1/3, 3/3 (SB) (SB) (SB) (SB) (SB) (SB) VSX-55TXi...
  • Page 39 : AUDIO SIGNAL ROUTE (FRONT Lch) : AUDIO SIGNAL ROUTE (SURROUND Lch) (SB) : AUDIO SIGNAL ROUTE (SURROUND BACK Lch) : AUDIO SIGNAL ROUTE (CENTER ch) (SB) Preamp. & Main (Master) Volume (SB) VSX-55TXi...

  • Page 40: Main Control Assy (3/3)

    3.10 MAIN CONTROL ASSY (3/3) MAIN CONTROL ASSY (VSX-55TXi : AWX8285) (VSX-53TX : AWX8289) 10V Reg. (TX) VSX-53TX ONLY 1/3, 2/3 Reset IC501 PD5948A8 (VSX-55TXi) PD5899A (VSX-53TX) Main Control U-com. Port Expander CN2415 CN2412 CN2414 VSX-55TXi...
  • Page 41 CN3006 (TX) : AUDIO SIGNAL ROUTE (TUNER Lch) VSX-55TXi ONLY VSX-53TX ONLY Level Shift 3.3V → 5V VSX-55TXi ONLY Buffer Flash : The power supply is shown with the marked box. CN2413 VSX-55TXi...

  • Page 42: Mic & F.opt In, Mic Amp And Dsp Connection Assys

    3.11 MIC & F.OPT IN, MIC AMP and DSP CONNECTION ASSYS MIC & F.OPT IN ASSY (AWX7981) VIDEO INPUT (FRONT) DIGITAL CN3004 SETUP MIC AMP ASSY (AWX8004) Mic. Amp. 3008 M N O VSX-55TXi...
  • Page 43 DSP CONNECTION ASSY (VSX-55TXi : AWX8299) (VSX-53TX : AWX8024) VSX-55TXi ONLY VSX-53TX ONLY Level Shift 5V → 3.3V VSX-55TXi ONLY : The power supply is shown with the marked box. VSX-55TXi...

  • Page 44: Power Amp In, Fan Connection And Fan Drive Assys

    3.12 POWER AMP IN, FAN CONNECTION and FAN DRIVE ASSYS : AUDIO SIGNAL ROUTE (FRONT Lch) : AUDIO SIGNAL ROUTE (SURROUND Lch) (SB) : AUDIO SIGNAL ROUTE (SURROUND BACK Lch) : AUDIO SIGNAL ROUTE (CENTER ch) POWER AMP IN ASSY (AWX7982) CN4402 (SB) Overload DET. (SB) CN4401 VSX-55TXi...
  • Page 45 FAN CONNECTION ASSY (AWX8005) CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491.200 MFD, BY LITTELFUSE INK. FOR IC4701 AND IC4702. 2201 Non Connection FAN DRIVE ASSY (AWX7976) VSX-55TXi...

  • Page 46: Dsp Assy (1/2)

    3.13 DSP ASSY (1/2) DSP ASSY (AWX8249) (SD) (SD) (UD) (UD) (UD) (SB) (SD) (SD) (SD) (SD) CN1651 VSX-55TXi...
  • Page 47 : AUDIO SIGNAL ROUTE (FRONT Lch) : AUDIO SIGNAL ROUTE (SURROUND Lch) (SB) : AUDIO SIGNAL ROUTE (SURROUND BACK Lch) : AUDIO SIGNAL ROUTE (CENTER ch) (SD) : SURROUND DATA SIGNAL ROUTE : AUDIO SIGNAL ROUTE (DIGITAL) (UD) : AUDIO SIGNAL ROUTE (USB DIGITAL) VSX-55TXi...

  • Page 48: Dsp Assy (2/2)

    3.14 DSP ASSY (2/2) DSP ASSY (AWX8249) (F)(S) (SB)(C) (SB) (SB) (SB) (SB) (SB) VSX-55TXi...
  • Page 49 : AUDIO SIGNAL ROUTE (Lch) : AUDIO SIGNAL ROUTE (FRONT Lch) : AUDIO SIGNAL ROUTE (SURROUND Lch) (SB) : AUDIO SIGNAL ROUTE (SURROUND BACK Lch) : AUDIO SIGNAL ROUTE (CENTER ch) (SB) (SB) (SB) (SB) (SB) (SB) (SB) (SB) (SB) (SB) VSX-55TXi...

  • Page 50: 1394 Assy (1/2) (Vsx-55Txi Only)

    3.15 1394 ASSY (1/2) (VSX-55TXi ONLY) VSX-55TXi...
  • Page 51 1394 ASSY (AWK7768) : The power supply is shown with the marked box. VSX-55TXi...

  • Page 52: 1394 Assy (2/2) (Vsx-55Txi Only)

    3.16 1394 ASSY (2/2) (VSX-55TXi ONLY) 1394 ASSY (AWK7768) VSX-55TXi...
  • Page 53 CN701 CN702 : The power supply is shown with the marked box. VSX-55TXi...

  • Page 54: Display Assy

    3.17 DISPLAY ASSY DISPLAY ASSY (VSX-55TXi : AWX8315) (VSX-53TX : AWX7983) Remote Signal Control CN501 VSX-55TXi...
  • Page 55 (HP) : AUDIO SIGNAL ROUTE (PHONES ch) (HP) CN1951 (HP) CN2002 CN3401 Display U-com VSX-55TXi ONLY CN3451 CN1601 CN1501 CN4752 VSX-55TXi...

  • Page 56: Volume, Multi Jog And Headphone Assys

    3.18 VOLUME, MULTI JOG and HEADPHONE ASSYS VOLUME ASSY (AWX7971) 3002 ROTARY ENCODER S3401 : MASTER VOLUME S3402 : ACOUSTIC EQ S3403 : MULTI CH IN S3404 : STEREO/DIRECT VSX-55TXi...
  • Page 57 MULTI JOG ASSY (AWX7972) 3003 ROTARY ENCODER S3451 : MULTI JOG S3452 : ENTER S3453 : MUSIC S3454 : MOVIE S3455 : STANDBY/ON HEADPHONE ASSY (AWX7980) (HP) CN3007 (HP) PHONES (HP) : AUDIO SIGNAL ROUTE (PHONES ch) VSX-55TXi...

  • Page 58: Power Amp-L Assy

    3.19 POWER AMP-L ASSY POWER AMP-L ASSY (AWX7984) THERMISTOR AEX7004 (SB) (SB) (SB) (SB) (SB) (SB) : AUDIO SIGNAL ROUTE (FRONT Lch) : AUDIO SIGNAL ROUTE (SURROUND Lch) (SB) : AUDIO SIGNAL ROUTE (SURROUND BACK Lch) VSX-55TXi...
  • Page 59 : The power supply is shown with the marked box. Power Amp. Power Amp. Voltage Amplifying Stage Current Amplifying Stage CN4601 CN4603 CN4605 (SB) (SB) (SB) (SB) (SB) (SB) CN4603 (SB) (SB) (SB) (SB) CN4455 VSX-55TXi...

  • Page 60: Power Amp-R And Power Amp-C Assys

    3.20 POWER AMP-R and POWER AMP-C ASSYS POWER AMP-R ASSY (AWX7985) POWER AMP-C ASSY (AWX7986) AA AB VSX-55TXi...
  • Page 61 Power Amp. Power Amp. Voltage Amplifying Stage Current Amplifying Stage CN4602 CN4604 CN4606 CN4604 : AUDIO SIGNAL ROUTE (CENTER ch) CN4602 AA AB : The power supply is shown with the marked box. VSX-55TXi...

  • Page 62: Regulator Assy

    3.21 REGULATOR ASSY REGULATOR ASSY (VSX-55TXi : AWX8303) (VSX-53TX : AWX7967) CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491.315 MFD, BY LITTELFUSE INK. FOR IC2411. C2401, C2402 ; VSX-55TXi : ACH7191 VSX-53TX : 3300/35 4602 D2411, D2412 ;...
  • Page 63 CN1652 CN1653 CN1654 : The power supply is shown with the marked box. VSX-55TXi...

  • Page 64: Sp/Ps, Diode, Trans 2-1 And Vh Tr Assys

    3.22 SP/PS, DIODE, TRANS 2-1 and VH TR ASSYS C4621, C1622 ; TRANS 2-1 ASSY (AWX8326) DIODE ASSY (AWX8017) VSX-55TXi : ACH7190 VSX-53TX : ACH7169 Rectifier for Power Amp. POWER D2203-D2206, D2209-D2212 : TRANSFORMER UDZS9.1B D2207, D2208 : UDZS22B FU4, FU5 : REK1114 (3.15A/125V)
  • Page 65 SP/PS ASSY (VSX-55TXi : AWX8307) (VSX-53TX : AWX7975) CN4611 ; VSX-55TXi : AKE7099 VSX-53TX : AKE7074 (1/2) FRONT ASR7014 (2/2) SURROUND ASR7014 (SB) SURROUND ASR7014 BACK (SB) (1/2) CENTER (2/2) ASR7014 CN4612 ; VSX-55TXi : AKE7100 (SB) VSX-53TX : AKE7075...

  • Page 66: Trans 2-2, Trans 1 And Primary Assys

    SAME TYPE NO. 4913.15 MFD, BY LITTELFUSE INK. FOR IC2251 AND IC2252. CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491005 MFD, BY POWER LITTELFUSE INK. FOR IC2253. TRANSFORMER 2402 TRANS 1 ASSY (AWX7969) AH AI VSX-55TXi...
  • Page 67 : AUDIO SIGNAL ROUTE (PHONES ch) CN4613 CN4610 PRIMARY ASSY (AWX7968) (HP) AC OUTLET AC Relay LIVE VEK1029 (10A/125V) AC IN NEUTRAL • NOTE FOR FUSE REPLACEMENT FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. CAUTION - REPLACE WITH SAME TYPE AND RATINGS ONLY. VSX-55TXi...

  • Page 68: Fm/Am Tuner Module

    3.24 FM/AM TUNER MODULE FM/AM TUNER MODULE (AXQ7231) FM FRONT END (FM) (FM) (FM) (FM) (FM) (AM) (AM) (AM) MW RF TUNING BLOCK (FM) (AM) OSC : 980 - 2150kHz 10k step VSX-55TXi...
  • Page 69 : AUDIO SIGNAL ROUTE (TUNER Lch) (AM) : AM SIGNAL ROUTE (FM) : FM SIGNAL ROUTE : The power supply is shown with the marked box. ATF7026 (AM) (TX) (FM) CN601 (TX) (TX) (FM) (FM) (TX) (AM) L201 ATE7003 PLL IC VSX-55TXi...

  • Page 70: Pcb Connection Diagram

    Symbol In PCB Symbol In Schematic Part Name Diagrams Diagrams C E B Capacitor Connector Transistor B C E SIDE A Transistor with resistor B C E Field effect SIDE B Chip Part P.C.Board transistor Resistor array 3-terminal regulator VSX-55TXi...

  • Page 71: Ch I/O Assy

    4.1 7.1CH I/O ASSY SIDE A SIDE A • For VSX-55TXi 7.1CH I/O ASSY CN1304 CN1303 CN1302 CN1301 C1335 C1336 C1325 C1326 C1315 C1316 C1305 C1306 W1317 W1308 W1312 W1313 W1314 W1315 W1304 W1303 C1310 W1319 C1309 W1320 W1321 C1329...
  • Page 72 C1346 C1344 C1342 C1341 R1390 R1388 R1385 C1334 C1323 C1324 C1314 C1303 C1304 C1313 R1384 R1371 R1332 R1322 R1311 R1312 R1301 R1302 C1392 C1394 C1312 C1332 (ANP7419-C) IC1304 IC1303 IC1302 IC1301 Q1371 Q1372 Q1362 Q1352 Q1361 Q1351 Q1381 Q1382 VSX-55TXi...

  • Page 73: V-Audio In Assy

    4.2 V-AUDIO IN ASSY SIDE A SIDE A V-AUDIO IN ASSY Q1201 Q1202 W1204 (ANP7420-C) CN1204 CN1405 SIDE B SIDE B V-AUDIO IN ASSY CN1204 R1221 R1222 C1215 C1213 C1214 (ANP7420-C) VSX-55TXi...

  • Page 74: Front In And Optical In Assys

    4.D-IN1 5.GNDD(SEP) 6.D-OUT2 OPTICAL-IN 7.GNDD(SEP) 8.D-OUT1 ASS'Y 9.GNDD (ANP7420-C) CN1701 CN1801 SIDE B SIDE B OPTICAL IN ASSY CN1701 OPTICAL-IN 9.GNDD 8.D-OUT1 ASS'Y 7.GNDD(SEP) FRONT IN ASSY 6.D-OUT2 5.GNDD 4.D-IN1 3.GNDD(SEP) 2.D-IN2 1.+5V R1501 C1705 C1701 (ANP7420-C) (ANP7420-C) CN1501 VSX-55TXi...

  • Page 75: Coaxial In Assy

    IC1681 C1836 R1860 C1823 C1850 CN1803 R1686 R1687 C1690 CN1803 (ANP7486-A) CN2406 IC1804 IC1802 IC1881 Q1807 Q1805 Q1804 Q1803 Q1801 IC1803 IC1681 SIDE B SIDE B COAXIAL IN ASSY CN1803 CN1803 CN1801 (ANP7486-A) CN1801 Q1808 Q1806 Q1802 IC1682 Q1809 VSX-55TXi...

  • Page 76: Input Connect, Rs232C And 12V Trigger Assys

    W1412 W1411 W1415 W1405 W1406 W1403 W1402 W1407 W1404 CN1407 CN1408 CN1406 (ANP7420-C) CN1406 CN1407 CN1408 CN1308 CN1307 CN1306 RS232C ASSY (VSX-55TXi) 12V TRIGGER ASSY (VSX-53TX) IC1932 Q1931 Q1901 IC1931 CN551 CN2403 E F G E F G (ANP7420-C) VSX-55TXi...
  • Page 77 L CH R CH IC1401 IC1401 IC1451 R1452 C1454 IC1451 C1455 C1453 R1453 R1454 R1451 CN1407 CN1406 CN1408 (ANP7420-C) CN1407 CN1406 CN1408 RS232C ASSY (VSX-55TXi) 12V TRIGGER ASSY (VSX-53TX) CN1901 Q1932 IC1901 E F G E F G (ANP7420-C) VSX-55TXi...

  • Page 78: Component Assy

    IC1003 IC1002 Q1052 Q1002 Q1001 SIDE B SIDE B COMPONENT ASSY J1051 HCMK-P3X C1055 R1055 Q1051 C1061 R1058 L1053 CN1001 C1024 C1026 C1025 R1005 R1006 R1004 R1003 R1002 R1001 C1002 C1004 C1001 C1006 C1005 C1003 IN-2 IN-1 (ANP7486-A) Q1051 VSX-55TXi...

  • Page 79: Video Assy

    R972 C944 R953 V-5V R945 R910 C907 V+5V R946 R952 C916 R940 C913 C911 R971 VIDEO ASS'Y R951 (ANP7486-A) Q901 Q931 Q932 IC902 IC901 IC903 Q933 SIDE B SIDE B VIDEO ASSY C962 C921 C965 (ANP7486-A) IC933 IC931 IC932 VSX-55TXi...

  • Page 80: Main Control Assy

    C202 R532 R533 R534 IC502 R502 R551 R201 R556 R557 R562 C501 C212 IC202 IC511 CN201 (FOR MR) 7.MR CK 6.MR DT 5.MR MUTE CN502 4.GNDU C211 3.RCH 2.GNDA 1.LCH C115 C116 CN201 CN101 CN502 CN2415 CN1402 CN1401 CN2413 VSX-55TXi...
  • Page 81 22.DISP CLK 23.DISP RDY C505 C502 R502 24.DISP RST 25.1W WUP 26.AC RY 27.MR IN C513 28.GNDU C504 C501 29.GNDU R501 30.VF IC511 31. FL AC1 32.FL AC2 CN351 CN302 (ANP7486-A) CN351 CN302 CN501 CN2411 CN2410 CN2414 CN2412 CN3006 VSX-55TXi...
  • Page 82 R513 CN551 D511 R821 CN552 D821 C786 R786 D822 R575 D831 C760 R785 R831 C779 IC714 C787 R504 D501 R598 R503 C510 C780 Q501 R528 IC302 R525 R523 R524 R526 R599 C515 R358 CN302 CN351 CN351 CN551 CN552 CN302 VSX-55TXi...
  • Page 83 C106 C105 R115 D511 R821 D821 D822 D831 R831 C108 C107 D501 R598 R120 C110 C109 R119 C510 R122 R525 R523 C112 R121 R524 C111 R526 R216 R251 Q251 C515 R124 C114 R123 C113 CN502 R215 CN351 (ANP7486-A) CN502 VSX-55TXi...

  • Page 84: Mic & F. Opt In, Mic Amp And Dsp Connection Assys

    DSP CONNECTION ASSY DSP CONNECTION ASS'Y IC1651 R1666 R1678 R1664 IC1653 R1661 R1665 R1663 IC1651 R1662 R1670 IC1653 R1660 R1659 R1669 R1667 CN1653 CN1654 CN1652 HCMK-P3X (ANP7486-A) CN1652 CN1653 CN1654 CN2407 CN2408 CN2409 M N O M N O VSX-55TXi...
  • Page 85 CN1602 MIC AMP ASSY R4754 CN4751 C4754 C4762 R4752 CN4751 D4751 R4757 D4752 CN4752 AWX8004 HCMK-P3X (ANP7486-A) CN4752 IC4752 DSP CONNECTION ASSY R1668 L1651 HCMK-P3X AWX8299 CN1653 CN1654 CN1652 (ANP7486-A) CN1654 CN1653 CN1652 M N O M N O VSX-55TXi...

  • Page 86: Power Amp In Assy

    4.10 POWER AMP IN ASSY • For VSX-55TXi SIDE A SIDE A POWER AMP IN ASSY CN4054 FAN MOTOR (FRONT) 4001 CN4004 CN4003 3.F.FAN+ CN4002 17.VH+ (J12) 2.F.FAN- 1.VH+ 16.VH+ 1.F.FANSTOP 10.F.FAN+ 15.VHGND 2.VH+ 9.F.FAN- 14.VHGND 3.VHGND 8.F.FANSTOP 13.VH- 4.VHGND 7.FANSTOP...
  • Page 87 16.SR 14.FR 15.GNDC 17.GNDSBR 16.C 18.SBR 17.GNDSL 19.NC(GND) 18.SL 19.GNDSR 20.SR 21.GNDSBL 22.SBL (ANP7419-C) 23.GNDSBR CMK-P3X 24.SBR CN4001 CN4002 CN4003 CN801 CN4402 CN4401 SIDE B SIDE B POWER AMP IN ASSY CN4001 CN4002 CN4003 R4003 (ANP7419-C) CN4004 4001 Q4001 VSX-55TXi...

  • Page 88: Fan Connection Assy

    8.FAN- 5.REG G 4.REG B 9.FAN+ N'UTILISER QUE LA REFERENCE 6.REG B 5.REG G 491.200,DE CHEZ LITTELFUSE INC. 7.FANSTOP 6.REG B IC4702 (ANP7486-A) IC4701 IC4702 SIDE B SIDE B FAN CONNECTION ASSY CN4702 CN4701 J4701 (ANP7486-A) CN4702 CN4701 J4701 VSX-55TXi...

  • Page 89: Fan Drive Assy

    4.12 FAN DRIVE ASSY • For VSX-55TXi SIDE A SIDE B J4701 FAN DRIVE ASSY CN4051 CN4051 CN4051 R4063 D4052 D4051 D4053 CN4051 C4052 Q4051 9.R.FAN+ 8.R.FAN- 7.R.FAN W4052 STOP R4052 Q4052 6.REGB R4061 5.REGG Q4052 4.REGB W4051 R4057 3.VH+...

  • Page 90: Dsp Assy

    IC306 IC701 C340 R718 IC701 IC304 L203 X301 R717 IC201 C337 R715 R317 R716 C338 R241 R244 C921 R302 R726 R725 R242 R707 R243 R706 C715 C716 CN702 CN101 CN701 (ANP7466-A) CN101 CN702 CN701 CN1802 CN402 CN401 VSX-55TXi ONLY VSX-55TXi...
  • Page 91 C408 R424 C428 IC101 C411 R422 C403 R423 R405 R429 C107 R401 R410 L403 R444 R732 L705 R443 R442 R441 IC706 IC705 R304 R722 C706 C705 C703 R721 R772 C903 R723 C922 Q702 Q701 R701 Q702 R712 R204 (ANP7466-A) VSX-55TXi...

  • Page 92: Display Assy

    4.14 DISPLAY ASSY • For VSX-55TXi CN1951 CN3007 DISPLAY SIDE A ASSY W3567 11.NECK 10.RY_A 9.RY_HP W3573 8.RY_C/S CN2002 7.RY_SB W3544 6.AC_RY W3572 5.HP_L 4.HP_R 3.UGND W3543 2.P-SW2 W3542 1.P-SW1 IC3002 U5.6V W3545 W3546 D3001 1.UCOM5V 2.UGND U5.6V W3530 3.INPUT/L 4.INPUT/R...
  • Page 93 UGND W3519 25.1W W.UP 26.AC RY 27.MR IN W3512 28.UGND S3004 S3001 S3000 S3003 S3006 S3009 S3012 S3015 29.UGND 30.VF 31.FL AC1 32.FL AC2 (ANP7485-A) S3007 SIDE B Q3004 L3000 CN3006 R3099 C3034 Q3004 CN3005 CN3004 (ANP7485-A) CN3004 CN3005 VSX-55TXi...
  • Page 94 W3520 W3526 W3525 CN3451 W3528 U5.6V J3003 UGND UGND W3512 S3014 S3011 S3008 S3004 UGND C3008 S3005 S3002 S3017 S3016 S3013 S3010 S3007 IC3002 SIDE B Q3001 IC3001 Q3002 Q3000 Q3003 IC3000 DISPLAY ASSY J3003 C3011 C3037 R3099 CN3007 VSX-55TXi...
  • Page 95 W3532 U5.6V W3531 DISPLAY W3526 ASS'Y W3525 CN501 W3528 U5.6V W3511 UGND W3513 UGND W3519 W3512 S3004 S3001 S3000 S3003 S3006 S3009 S3012 S3015 (ANP7421-A) S3007 SIDE B Q3004 L3000 R3099 C3034 Q3004 CN3005 J3002 CN3004 (ANP7421-A) CN3004 CN3005 VSX-55TXi...

  • Page 96: Volume, Multi Jog And Headphone Assys

    4.15 VOLUME, MULTI JOG and HEADPHONE ASSYS SIDE A SIDE A VOLUME ASSY VOLUME ASS'Y 3002 (ANP7420-C) MULTI JOG ASSY MECHA SW ASSY (ANP7420-C) CN3451 (ANP7420-C) 3003 HEADPHONE ASSY CONTACT SIDE CMK-P3X CN3007 H.P ASS'Y (ANP7420-C) V X Y V X Y VSX-55TXi...

  • Page 97: Volume Assy

    SIDE B SIDE B VOLUME ASSY VOLUME ASS'Y R3406 IC3401 R3405 IC3401 C3403 R3401 R3402 R3407 CMK-P3X (ANP7420-C) MULTI JOG ASSY MECHA SW ASSY (ANP7420-C) CN3451 (ANP7420-C) CN3451 HEADPHONE ASSY 1.HPR 2.HPL 3.HPSW (ANP7420-C) V X Y V X Y VSX-55TXi...

  • Page 98: Power Amp L And Power Amp C Assys

    4.16 POWER AMP L and POWER AMP C ASSYS SIDE A • For VSX-55TXi THERMISTOR POWER AMP-L ASSY CN4403 POWER AMP-L ASS'Y 1.VH+ 2.VH+ 3.VHG CN4403 4.VHG 5.VH- 6.VH- W3016 7.+5V 8.TEMP 9.AMUTE 10.OL DET 11.DC DET CN4003 12.AGFL 13.FL 14.AGSL...
  • Page 99 W3028 W3029 C4114 C4401 W3031 W3033 W3039 R4119 W3040 J4301 J4201 J4101 J4102 (ANP7485-A) IC4101 IC4202 IC4103 IC4102 IC4453 CN4605 CN4601 POWER AMP-C ASSY CN4455 R4469 W3146 W3145 C4459 W3144 IC4451 W3150 W3148 CN4602 W3147 W3149 (ANP7485-A) CN4453 CN4454 VSX-55TXi...
  • Page 100 SIDE B • For VSX-55TXi POWER AMP-L ASSY 1.AMPG 2.VH+ R4102 C4102 3.VHG 4.VH- 5.CG1 C4115 R4103 6.CS Q4101 7.CS C4215 8.CS 9.DC 10.CG2 C4113 R4114 R4116 D4103 D4101 D4203 D4107 D4201 D4104 D4106 D4102 R4115 R4120 R4121 R4118 Q4102...
  • Page 101 Q4402 R4307 C4307 R4305 R4314 C4306 R4211 R4311 R4316 R4308 R4210 D4203 D4201 R4315 R4310 R4214 D4207 R4216 D4306 D4301 R4312 D4302 R4215 C4313 D4206 R4221 R4320 R4220 R4317 R4217 R4321 R4318 (ANP7485-A) Q4201 Q4402 Q4302 Q4301 Q4401 Q4202 VSX-55TXi...
  • Page 102 14.AGSL 15.SL C4203 C4204 16.AGSBL C4305 C4303 17.SBL C4304 IC4201 IC4301 C4314 KN4402 C4210 C4211 C4309 C4310 C4311 C4214 C4406 W3038 R4219 W3036 W3033 R4319 W3040 W3041 J4301 W3042 J4201 J4303 J4302 IC4301 IC4201 IC4303 IC4302 IC4203 IC4202 CN4603 VSX-55TXi...
  • Page 103 W3028 W3029 C4114 C4401 W3031 W3033 W3039 R4119 W3040 J4301 J4201 J4101 J4102 (ANP7421-A) IC4101 IC4202 IC4103 IC4102 IC4453 CN4605 CN4601 POWER AMP-C ASSY CN4455 R4469 W3146 W3145 C4459 W3144 IC4451 W3150 W3148 CN4602 W3147 W3149 (ANP7421-A) CN4453 CN4454 VSX-55TXi...
  • Page 104 D4107 D4203 D4104 D4201 D4106 D4102 R4115 R4120 R4121 R4118 Q4102 Q4101 POWER AMP-C ASSY CN4455 CN4455 R4457 R4456 R4459 R4458 C4452 C4456 R4455 Q4451 R4466 R4472 D4455 R4451 Q4452 C4466 R4454 R4452 R4467 CN4453 (ANP7421-A) CN4453 Z AB VSX-55TXi...
  • Page 105 C4307 R4213 Q4402 R4305 R4314 C4306 R4211 R4316 R4311 R4308 R4210 D4203 R4315 R4310 D4201 R4214 D4207 R4216 D4306 R4312 R4215 D4301 D4302 D4206 C4313 R4221 R4320 R4220 R4317 R4217 R4321 R4318 (ANP7421-A) Q4201 Q4402 Q4302 Q4301 Q4401 Q4202 VSX-55TXi...

  • Page 106: Power Amp R Assy

    4.17 POWER AMP R ASSY SIDE A • For VSX-55TXi POWER AMP-R ASSY ASS'Y POWER AMP-R AWX7985 W3128 CN4454 C4153 CN4453 10.C 9.AGC 8.AMUTE 7.CG1 6.OL DET IC4151 IC4251 5.DC DET C4164 W3099 4.CS 3.CS 2.CS W3103 1.CG2 W3101 W3102...
  • Page 107 9.AGC 7.AGFR 6.FR CN4002 5.AGSR C4254 4.SR C4253 3.AGSBR 2.SBR 1.NC C4354 C4355 IC4351 C4353 IC4251 W3121 C4260 C4258 C4261 C4251 C4360 W3103 W3104 R4269 W3106 R4369 J4351 J4451 J4352 J4353 (ANP7458-A) CN4604 IC4251 IC4351 IC4253 IC4252 IC4353 IC4352 VSX-55TXi...
  • Page 108 SIDE B • For VSX-55TXi POWER AMP-R ASSY 19.VH+ 18.VH+ 17.VHG 16.VHG 15.VH- 14.VH- 13.NC 12.AMUTE 11.OL DET 10.DC DET 9.AGC Q4252 7.AGFR R4477 6.FR 5.AGSR 4.SR C4265 3.AGSBR 2.SBR 1.NC R4255 R4256 C4365 R4355 R4253 R4259 Q4351 Q4404 R4260...
  • Page 109 10.C 9.AGC C4166 Q4252 8.AMUTE D4255 7.CG1 C4156 6.OL DET 5.DC DET R4266 4.CS R4475 3.CS R4265 R4163 2.CS R4153 1.CG2 R4160 R4164 R4165 R4166 R4161 D4154 D4153 D4157 D4151 R4168 D4152 R4171 R4170 R4167 (ANP7485-A) Q4252 Q4151 Q4152 VSX-55TXi...
  • Page 110 POWER AMP-R ASSY ASS'Y POWER AMP-R AWX7985 W3128 CN4454 C4153 CN4453 10.C 9.AGC 8.AMUTE 7.CG1 6.OL DET IC4151 IC4251 5.DC DET C4164 W3099 4.CS 3.CS 2.CS W3103 1.CG2 W3101 R4169 J4351 J4251 J4352 J4151 CN4602 CN4606 IC4151 IC4452 IC4153 IC4152 IC4253 VSX-55TXi...
  • Page 111 9.AGC 7.AGFR 6.FR CN4002 5.AGSR C4254 4.SR C4253 3.AGSBR 2.SBR 1.NC C4354 C4355 IC4351 C4353 IC4251 W3121 C4260 C4258 C4261 C4251 C4360 W3103 W3104 R4269 W3106 R4369 J4351 J4451 J4352 J4353 (ANP7421-A) CN4604 IC4251 IC4351 IC4253 IC4252 IC4353 IC4352 VSX-55TXi...
  • Page 112 C4265 4.SR 3.AGSBR 2.SBR 1.NC R4255 R4256 R4355 C4365 R4253 R4259 Q4351 Q4404 R4363 R4260 R4402 R4261 D4253 Q4251 R4366 R4365 D4254 D4356 D4357 R4271 R4368 R4371 R4270 D4352 R4370 D4351 R4267 R4367 Q4252 Q4351 Q4403 Q4352 Q4404 Q4251 VSX-55TXi...
  • Page 113 10.C 9.AGC C4166 Q4252 8.AMUTE D4255 7.CG1 C4156 6.OL DET R4266 5.DC DET 4.CS R4475 R4265 R4163 3.CS 2.CS R4153 1.CG2 R4160 R4164 R4165 R4161 R4166 D4154 D4153 D4157 D4151 D4152 R4168 R4171 R4170 R4167 (ANP7421-A) Q4252 Q4151 Q4152 VSX-55TXi...

  • Page 114: Regulator Assy

    4.18 REGULATOR ASSY SIDE A • For VSX-55TXi CN1803 CN1652 IC2407 REGULATOR ASSY CN2415 CN2406 CN2407 REGULATOR ASSY CN2406 W2501 W2516 W2492 W2493 W2494 W2497 8303 8304 8305 W2499 W2496 W2498 W2495 W2475 W2490 W2491 W2470 W2500 W2462 W2463 W2466...
  • Page 115 W2481 W2456 W2482 CN2414 CN2410 D2416 W2449 W2455 L2401 2402 L2402 Y2401 W2448 C2435 C2438 W2446 2402 C2408 2405 IC2403 IC2402 IC2401 Q2401 Q2402 2251 (ANP7490-A) CN2411 CN2410 CN2414 CN351 CN302 IC2409 IC2410 Q2402 2405 IC2402 IC2401 IC2403 Q2401 VSX-55TXi...
  • Page 116 SIDE B • For VSX-55TXi REGULATOR ASSY CN2409 CN2408 CN2407 CN2409 CN2408 CN2407 C2447 CN2412 CN2410 CN2414 2402 Y2401 C2434 D2423 2402 (ANP7490-A) C2413 C2404 C2407 D2405 CN2414 CN2410 CN2411 CN2412 VSX-55TXi...
  • Page 117 SIDE B CN2406 CN2415 CN2406 C2447 CN2415 CN2411 CN2413 D2404 C2428 D2403 C2413 D2401 D2402 CN2411 CN2413 CN2405 CN2405 D2419 CN2404 CN2404 D2418 CN2403 CN2403 CN2401 CN2401 VSX-55TXi...
  • Page 118 CN2413 CN2411 W2415 W2412 CN502 CN35 W2411 W2407 W2406 IC2411 W2408 IC2404 IC2406 IC2405 W2409 W2410 CN901 CN2405 CN2405 W2405 PRODUCTION CODE CN1001 CN2404 CN2404 W2403 W2513 W2512 CN1903 W2511 CN2403 CN1903 CN2403 W2402 W2510 W2401 CN2401 4602 CN2401 VSX-55TXi...
  • Page 119 CN2412 W2481 W2456 W2482 CN2414 CN2410 D2416 W2449 W2455 L2401 2402 L2402 Y2401 W2448 C2435 C2438 W2446 2402 C2408 C2405 IC2403 IC2402 IC2401 Q2401 2251 (ANP7419-C) CN2411 CN2410 CN2414 CN351 CN302 IC2409 IC2410 Q2402 2405 IC2402 IC2401 IC2403 Q2401 VSX-55TXi...
  • Page 120 SIDE B • For VSX-53TX REGULATOR ASSY CN2409 CN2408 CN2407 CN2409 CN2407 CN2408 C2447 CN2414 CN2412 CN2410 2402 C2434 D2423 2402 (ANP7419-C) C2413 C2404 C2407 D2405 CN2414 CN2410 CN2411 CN2412 VSX-55TXi...
  • Page 121 SIDE B CN2406 CN2415 CN2407 CN2406 C2447 CN2415 CN2411 CN2413 D2404 C2428 D2403 C2413 D2401 D2402 CN2411 CN2413 CN2405 CN2405 CN2404 D2419 CN2404 D2418 CN2403 CN2403 CN2401 CN2401 VSX-55TXi...

  • Page 122: Sp/Ps Assy

    8.W UP -15V 7.ST+5.6V 6.STG W4617 5.-15V W4605 4.+15V W4607 CN2401 L4605 3.REG B 2.REG G 1.REG B W4604 CN4610 R4625 C4629 CN4613 CN4612 CMK-P3X OPEN SIDE OPEN SIDE SP/PS ASS'Y C4612 C4605 (ANP7420-C) CN4613 CN4603 CN4610 CN2004 CN2003 VSX-55TXi...
  • Page 123 3.REG B R4639 2.REG G D4606 8.W UP 1.REG B 7.ST+5.6V 0 0 0 6.STG 5.-15V 4.+15V 3.REG B Q4601 2.REG G 4 4 4 1.REG B CN4610 CN4613 SP/PS ASS'Y (ANP7420-C) CN4610 CN4603 CN4613 CN4604 Q4603 Q4602 Q4601 VSX-55TXi...

  • Page 124: Diode, Trans 2-1 And Vh Tr Assys

    2.+B W2248 W2249 ASS'Y 3.+VH W2242 4.-VH Q2231 5.-B W2251 W2252 6.-C W2253 Q2232 CN2231 W2244 W2254 W2246 W2255 VH TR ASS'Y D2242 D2241 Q2232 CMK-P3X (ANP7420-C) DIODE ASSY (ANP7420-C) VH TR ASSY AE AF AG AE AF AG VSX-55TXi...
  • Page 125 REG B REG B 1.+C REGb 2.+B 3.+VH 4.-VH 5.-B REGG 6.-C REGa RISK OF FIRE REPLACE FUSE AS MARKED (ANP7420-C) VH TR ASSY C2231 D2231 R2232 CN2231 D2232 (ANP7420-C) AWX8018 DIODE ASSY (ANP7420-C) AE AF AG AE AF AG VSX-55TXi...

  • Page 126: Trans 2-2, Trans 1 And Primary Assys

    4.21 TRANS 2-2, TRANS 1 and PRIMARY ASSYS SIDE A SIDE A • For VSX-55TXi POWER TRANSFORMER AWX7970 TRANS 2-2 ASSY IC2251 PRIMARY TRANS 1 ASSY IC2252 IC2253 C2251 2251 W2252 W2253 EN CAS DE DES REMPLACEMENT FUSIBLES IC2253 N'UTILISER...
  • Page 127 SIDE B SIDE B • For VSX-55TXi TRANS 1 ASSY TRANS 2-2 ASSY 2251 (ANP7490-A) REPLACE WITH SAME TYPE NO.491005 FOR IC2253, 4913.15 FOR IC2251 AND IC2252 MFD. BY LITTELFUSE INC. (ANP7490-A) 2251 PRIMARY ASSY CN2002 SECONDARY PRIMARY C2012 C2005...

  • Page 128: Primary Assy

    T2001 W2011 W2012 W2014 IC2001 W2013 W2022 L2003 W2015 7968 W2016 7994 W2017 PRIMARY 7998 W2018 C2004 7999 ASSY W2026 W2023 W2019 7987 W2020 W2027 7988 CN2003 CN2004 (ANP7419-C) CN2003 CN4610 CN2004 CN4613 AH AI AJ AH AI AJ VSX-55TXi...
  • Page 129 (ANP7419-C) REPLACE WITH SAME TYPE NO.491005 FOR IC2253, 4913.15 FOR IC2251 AND IC2252 MFD. BY LITTELFUSE INC. (ANP7419-C) 2251 PRIMARY ASSY CN2002 SECONDARY PRIMARY C2012 C2005 C2007 C2006 (ANP7419-C) CN2003 CN2004 CN2004 CN2003 AH AI AJ AH AI AJ VSX-55TXi...

  • Page 130: 1394 Assy (Vsx-55Txi Only)

    4.22 1394 ASSY (VSX-55TXi ONLY) SIDE A SIDE A 1394 ASSY R131 C216 R217 JA202 R219 R290 R133 R409 C248 R411 D103 AWK7 R280 R281 R410 R222 C214 R408 IC401 R106 R107 R226 L204 R116 X101 R134 1394 ASSY R104...

  • Page 131: Fm/Am Tuner Module

    4.23 FM/AM TUNER MODULE SIDE A SIDE A FM/AM TUNER MODULE (ANP7338-B) CN201 Q202 CN601 SIDE B SIDE B FM/AM TUNER MODULE CN201 (ANP7338-B) Q203 Q601 Q204 Q602 IC201 IC202 Q205 VSX-55TXi...

  • Page 132: Pcb Parts List

    Ex.2 When there are 3 effective digits (such as in high precision metal film resistors). 5.62k Ω 562 x 10 5621 RN1/4PC 5 6 2 1 • LIST OF WHOLE PCB ASSEMBLIES VSX-55TXi VSX-53TX Mark Symbol and Description /KUXJI/CA /KUXJI/CA 1..FM/AM TUNER MODULE...
  • Page 133 AWX8285 and AWX8289 are constructed the same except for the following : Mark Symbol and Description AWX8285 AWX8289 IC501 PD5948A8 PD5899A Q101, Q102 2SC3326 Not used Q103 DTA124EK Not used C139, C140 CCSRCH470J50 Not used R135, R136 RS1/16S912J RS1/16S0R0J VSX-55TXi...
  • Page 134 Not used SP/PS ASSY AWX8307 and AWX7975 are constructed the same except for the following : Mark Symbol and Description AWX8307 AWX7975 > C4621, C4622 (22000uF/63V) ACH7190 ACH7169 CN4611 8P SPEAKER TERMINAL AKE7099 AKE7074 CN4612 6P SPEAKER TERMINAL AKE7100 AKE7075 VSX-55TXi...

  • Page 135: Front In Assy

    • PARTS LIST FOR VSX-55TXi Mark No. Description Part No. Mark No. Description Part No. REGULATOR ASSY OTHERS FRONT IN ASSY Y15 BOARD IN JUMPER ADX7418 COILS AND FILTERS Y14 BOARD IN JUMPER ADX7419 L1501-L1504 CHIP BEAD VTL1077 J11 JUMPER WIRE 7P...
  • Page 136 CN1902 KR CONNECTOR B8B-PH-K RESISTORS CN1903 4P SOCKET KP200TA4L All Resistors RS1/16S###J JA1922 REMOTE CONTROL JACK RKN1004 1901 SCREW TERMINAL VNE1948 OTHERS CN1001 9P SOCKET AKP7068 JA1001-JA1003 3P PIN JACK VKB1151 COAXIAL IN ASSY X1051 CRYSTAL RESONATOR ASS1056 SEMICONDUCTORS (14.32MHz) VSX-55TXi...
  • Page 137 CN201 7P PLUG AKP7056 IC701–IC704 TC94A07F CN103 9P PLUG AKP7057 IC102, IC711–IC714 UPC4570G2 CN102 13P PLUG AKP7059 Q601 2SC1740S CN101 15P PLUG AKP7060 Q101, Q102 2SC3326 CN351 7P SOCKET AKP7067 Q103, Q251, Q511 DTA124EK CN2, CN3 9P SOCKET AKP7068 Q501 DTC143EK VSX-55TXi...

  • Page 138: Power Amp In Assy

    > D4051,D4052 1SR154-400 KN4751 EARTH METAL FITTING VNF1084 D4059 1SS355 D4055 UDZS12B D4053 UDZS27B D4057 UDZS5.1B DSP CONNECTION ASSY SEMICONDUCTORS CAPACITORS IC1651,IC1653 TC74LVX244FT C4054 CEAT101M16 C4052 CEAT1R0M50 COILS AND FILTERS C4055,C4056 CEAT221M63 L1651,L1652 QTL1013 C4051 CEAT471M35 CHIP SOLID INDUCTOR VSX-55TXi...
  • Page 139 C321, C322, C325, C326 CCSRCH471J50 SEMICONDUCTORS C329, C330, C332, C333, C335 CCSRCH471J50 IC302 K4S641632F-TC75 > NJM2391DL1-33 C345, C346, C402, C404–C408 CCSRCH471J50 IC303 NJU7093AF C410–C418, C420–C422 CCSRCH471J50 IC101 PD5787A C424–C426, C471 CCSRCH471J50 IC301 PD8112A C603–C606 CCSRCH820J50 C111, C112, C502, C522, C542 CEV100M16 VSX-55TXi...
  • Page 140 JUMPER WIRE 5P D20PYY0510E OTHERS J3003 JUMPER WIRE 7P D20PYY0715E CN101 7P CONNECTOR RKN1048 3001 FL HOLDER VNF1085 CN402 10P CONNECTOR VKN1414 X3000 CERAMIC RESONATOR ASS7042 CN401 22P CONNECTOR VKN1426 (4.19MHz) JA201, JA202 1394-TERMINAL VKN1800 X302 CRYSTAL RESONATOR ASS7054 (22.5792MHz) VSX-55TXi...

  • Page 141: Multi Jog Assy

    C4354,C4355 CEHAT470M63 D4303 UDZS10B C4158,C4159,C4258,C4259 CEHAZL470M25 CAPACITORS C4358,C4359 CEHAZL470M25 C4106,C4107,C4206,C4207 ACG7041 C4306,C4307 (220u/100V) ACG7041 RESISTORS C4102,C4202,C4302 CCSRCH331J50 > R4181,R4182,R4281,R4282 ACN7107 C4112,C4113,C4212,C4213 CCSRCH6R0D50 > R4381,R4382,R4481 (0.1ohm) ACN7107 C4312,C4313 CCSRCH6R0D50 > R4169,R4269,R4369 (0.22ohm/5W) ACN7121 Other Resistors RS1/16S###J C4114,C4214,C4314 CEANP1R0M50 C4401,C4402 CEAT331M63 VSX-55TXi...
  • Page 142 C4621,C4622 (22000u/63V) ACH7190 C4623 CEAT101M50 D2405,D2406,D2413,D2414 RB501V-40 C4601-C4607 CFTYA104J50 D2420 UDZS10B C4625-C4631 CQMBA103J50 D2421,D2422 UDZS15B D2423,D2424 UDZS6.2B RESISTORS > R4621-R4627 RD1/2LMF4R7J CAPACITORS R4628-R4632 RD1/2VM331J C2401,C2402 (3300u/35V) ACH7191 R4615,R4616 RD1/4MUF473J > C2433 (4700u/16V) ACH7192 R4601-R4607 RS1LMF4R7J > C2446 CCSRCH101J50 R4611,R4612 RS2LMF331J VSX-55TXi...

  • Page 143: Diode Assy

    All Resistors RS1/16S###J OTHERS FM/AM TUNER MODULE CN2231 6P L TYPE CONNECTOR KPD6L SEMICONDUCTORS IC201 BA1451F IC202 LC72131MD Q201, Q204, Q205 2SC2412K TRANS 2-2 ASSY Q202 DTA124ES SEMICONDUCTORS Q203 DTC124EK > IC2251,IC2252 PROTECTOR(3.15A) AEK7016 > IC2253 PROTECTOR(5A) AEK7019 D201 1SS133 VSX-55TXi...
  • Page 144 RS1/10S331J R104 RS1/10S391J Other Resistors RS1/16S###J OTHERS CN201 13P FFC CONNECTOR 52044-1345 BN201 4P ANTENNA TERMINAL AKA7003 SHIELD CASE T ANK7072 SHIELD CASE B ANK7073 X201 CRYSTAL RESONATOR ASS1093 (7.2MHz) FM FRONT END AXF7003 AM RF TUNING BLOCK AXX7071 VSX-55TXi...

  • Page 145: Adjustment

    Pin 21 and Pin 23 of IC201 (Test point Vtm) Adjustment gets within 0 ± 50mV. PRODUCT MPX SG FM SG Voltmeter FM75Ω antenna terminal Fig.1 Adjustment Wiring Diagram FM/AM TUNER MODULE L201 IC201 pin 21 pin 23 SIDE B Fig.2 Adjustment Point VSX-55TXi...

  • Page 146: General Information

    3) Thermistor open detection If a total (total of 50 times) of A/D value (TEMPIN) for one second is less than 250, the indication "THDCT NG" flashes. If this status continues for 3 seconds, the power becomes the standby mode. VSX-55TXi...
  • Page 147 Detects when the FAN_DET port speaker relay off, then Flashing "FAN STOP" Fan stop automatically. After the is forcibly stopped becomes "L". turns off the power after 3 for 3 seconds power off, the key input is seconds. possible once again. VSX-55TXi...

  • Page 148: Diagnostics Of Amplifier Section

    R4106, 4107 (RS1/16S101J:100 Ω chip IC4101 power filter resistor) 3. IC4101 (PA9009A: Power amplifier with output current bias Voltage step HIC) IC4701, 4702 (AEK7023: 200mA IC protector /FAN CONNECTION Assy) 4. Q2231, 2232 (2SC4793,2SA1837 TO-220 Tr. /VH TR Assy) VSX-55TXi...

  • Page 149: Trouble Shooting

    IC902 CN101-pin 8. Is 1.8V Replace IC902 USB (pin 5) outputting it ? Confirm Check the COXIAL IN Assy the poor contact or OPTICAL IN Assy and of lead wire of so on. CN101-pin 6. VSX-55TXi...
  • Page 150 Replace IC201 pins 2-4 Same signal Replace IC701 waveform BCK (pin 26) Replace IC201 Is outputting it ? pins 5-7 Same signal Replace IC701 waveform pins 11-9 Same signal Replace IC701 waveform pins 14-12 Same signal Replace IC701 waveform VSX-55TXi...
  • Page 151 5 there poor contact Replace IC401 or IC451 Is outputtingit ? of lead wire of IC401 or IC451 Is not pin 6 there poor contact Replace IC401 or IC451 Is outputtingit ? of lead wire of IC401 or IC451 VSX-55TXi...
  • Page 152 IC541 pin 14 Is a signal Replace IC541 outputting it pin 14 Is a signal Replace IC561 pin 16 outputting it Is a signal Replace IC541 outputting it pin 16 Is a signal IC561 Replace IC561 outputting it VSX-55TXi...
  • Page 153 Is a signal Replace IC641 Replace IC641 outputting it outputting it IC661 pin 7 Is a signal Replace IC641 outputting it pin 1 Is a signal Replace IC661 outputting it pin 7 Is a signal Replace IC661 outputting it VSX-55TXi...

  • Page 154: Disassembly

    Bonnet and Heat Sink Block Remove the bonnet case (screws × 23) Remove the heat sink block (screws × 10, connectors × 8) ×2 ×2 ×2 ×2 POWER AMP-C ASSY POWER AMP-L ASSY POWER AMP-R ASSY POWER IN ASSY VSX-55TXi...

  • Page 155: Front Panel Block

    (screws × 1, Nylon Rivet × 1, connectors × 6) ASSY CN301 CN701 CN701 CN102 CN101 MIC & F.OPT IN MULTI JOG ASSY ASSY HEADPHONE FRONT IN COAXIAL IN ASSY ASSY ASSY DSP CONNECTION MIC AMP ASSY ASSY DISPLAY VOLUME ASSY ASSY VSX-55TXi...
  • Page 156 Remove the locking card spacer Locking Card Spacer Under Base Cutting Pliers ×7 FAN CONNECTION ASSY REGULATOR ASSY FAN DRIVE ASSY TRANS 2-1 TRANS 2-2 (VSX-55TXi) ASSY ASSY VIDEO ASSY OPTICAL IN ASSY 7.1 CH I/O ASSY FM/AM TUNER DIODE MODULE ASSY COMPONENT ASSY...

  • Page 157: Parts

    Master clock input of fs44.1kHz (33.8688MHz or 22.5792MHz) CLK44KI Crystal resonator input of fs44.1kHz (22.5792MHz) CLK44KO Crystal resonator output of fs44.1kHz (22.5792MHz) L: CLK4XK input selection, H: crystal resonator I/O selection As for the crystal resonator, less than SELOSC 30MHz are insured. VSX-55TXi...
  • Page 158 − VSSCORE Digital GND (for inside) − VDDCORE Digital VDD (3.3V, for inside) − VSSOUT Connect to analog GND − VSSPASS Analog GND − VDDPASS Analog VDD (3.3V) LPOUT Phase comparator output (analog) LPIN VCO control voltage input (analog) VSX-55TXi...
  • Page 159 139 SDCLK Data input/output for external SDRAM 140 SDDQMU Data input/output for external SDRAM 141 SDXRAS XRAS output for external SDRAM 142 SDXCAS XCAS output for external SDRAM 143 SDXWE XWE output for external SDRAM − 144 VSSOUT Digital GND VSX-55TXi...
  • Page 160 PD5948A8 (MAIN CONTROL ASSY: IC501) (For VSX-55TXi) • Main Microcomputer Pin Assignment (Top view) 12VTRIGGER STEREO TMUTE 1394 RST RDS FM+ 1394 CS RDS DT 1394 DO T-DI 1394 DI RDS CLK 1394 CK T-DO BYTE OL DET CMVSS T-CE...
  • Page 161 Communication data in signal with the DIR/DAC DIR CS Communication chip select signal with the DIR/DAC DIR CK Communication clock signal with the DIR/DAC DIR ERR Lock/Unlock signal DIR RST DIR reset signal DECO MUTE Boot success detecting port of 1st DSP VSX-55TXi...
  • Page 162 Destination read 2 WATT-IN Wattage detection Level detection with A/D TEMP-IN Temperature detection Level detection with A/D FAN STOP Fan forced stop detection − AVSS Connect to VSS – − VREF Connect to VCC − AVCC Connect to VCC 100 – VSX-55TXi...
  • Page 163 1W WUP furniture DISP EN DSP HREQ2 OSD RST DSP HREQ1 OSD CS EVR DT OSD CONT EVR CLK DISP RST EVR CS DISP RDY M62429 CLK OSD/DISP CLK M62429 DT DISP DO DSP MUTE OSD/DISP DI DAC RST VSX-55TXi...
  • Page 164 Communication data in signal with the DIR/DAC DIR CS Communication chip select signal with the DIR/DAC DIR CK Communication clock signal with the DIR/DAC DIR ERR Lock/Unlock signal DIR RST DIR reset signal DECO MUTE Boot success detecting port of 1st DSP VSX-55TXi...
  • Page 165 Destination read 2 WATT-IN Wattage detection Level detection with A/D TEMP-IN Temperature detection Level detection with A/D FAN STOP Fan forced stop detection − AVSS Connect to VSS – − VREF Connect to VCC − AVCC Connect to VCC 100 – VSX-55TXi...
  • Page 166 VOL_– P02/FLD10 P91/XCOUT P90/XCIN P03/FLD11 P04/FLD12 INPUT_L P05/FLD13 INPUT_R XOUT P06/FLD14 XOUT P07/FLD15 CHECKER P46/T2OUT P10/FLD16 P11/FLD17 P45/T1OUT P44/PWM1 P12/FLD18 P13/FLD19 P43/BUZO1 P14/FLD20 MIC SW P42/INT3 232C DET P41/INT1 P15/FLD21 1394 MR IN P16/FLD22 P40/INT0 MCACC P87/PWMO/FLD39 P17/FLD23 STBY VSX-55TXi...
  • Page 167 No. Pin Name I/O Pin Function No. Pin Name I/O Pin Function KEY5 KEY AD input 41 STANDBY Standby LED MR SW Multi room input Pioneer/others L: Pioneer 42 MCACC MCACC LED KEY1 43 1394 1394 LED KEY2 44 NC KEY AD input...
  • Page 168 TC9215_C34 Switch the DSP/DIRECT/MULTI CH IN of surround signal H: Multi ch input path PHONO GAIN "H" at PHONO equalizer ON DSDM DSD DIRECT control (VSX-55TXi only) TC74HC4053_INH Select the Component/D4 input (2 inputs → 1 output) TC74HC4053_A FAN DRIVE...
  • Page 169 DAC or ADC directly. See the volume control and mute control section. (4) Connect a decouple capacitor to GND (5) 3.3-V CMOS level input with internal pulldown, 5 V tolerant (6) TTL Schmitt trigger, 5 V tolerant VSX-55TXi...
  • Page 170 About PCM2902EG • With codec of USB BUS POWERED, power is supplied from Vbus of USB, and work. (work with a power supply of VSX-55TXi irrelatively.) • Be USB codec, but analog I/O and digital (SPDIF) input are not using in VSX-55TXi.

  • Page 171: Display

    1-5B 2-5B 3-5B 4-5B 5-5B 1-5A 2-5A 3-5A 4-5A 5-5A 1-6B 2-6B 3-6B 4-6B 5-6B 1-6A 2-6A 3-6A 4-6A 5-6A 1-7B 2-7B 3-7B 4-7B 5-7B 1-7A 2-7A 3-7A 4-7A 5-7A (Lower stage) (Upper stage) (14G to 1G) (14G to 6G, 2G, 1G) VSX-55TXi...
  • Page 172 3-7B 3-7B 3-7B 3-7B 3-7B 3-7B 3-7B 3-7B 3-7B 4-7B – 4-7B 4-7B 4-7B 4-7B 4-7B 4-7B 4-7B 4-7B 4-7B 4-7B 4-7B 4-7B 4-7B – 5-7B 5-7B 5-7B 5-7B 5-7B 5-7B 5-7B 5-7B 5-7B 5-7B 5-7B 5-7B 5-7B 5-7B VSX-55TXi...

  • Page 173: 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-55TXi...

  • Page 174: Remote Control Unit

    7.4 REMOTE CONTROL UNIT 7.4.1 EXPLODED VIEWS AND PARTS LIST (VSX-55TXi : AXD7325) Mark No. Description Part No. Mark No. Description Part No. Connector 423RRC-046-01G PCB Assy AZC7301 Plate 481RRC-018-01G Rubber Key AZA7425 Shield Plate 801RRC-020-01L Case A AZN7905 Case B...

  • Page 175: Panel Facilities

    STEREO/DIRECT : Switches the receiver into STEREO mode if it was in a different 9 i.LINK indicator sound mode or toggles between DIRECT and Lights when an i.LINK -Audio-equipped STEREO mode. component is selected. VSX-55TXi...
  • Page 176 Selects station memories or frequencies when or video camera (etc.), that has an S video out. using the tuner. RCA VIDEO / AUDIO (L/R) Video input for connecting a portable DVD player or video camera (etc.), that has standard RCA video/audio outputs. VSX-55TXi...
  • Page 177 TUNED: Lights when a broadcast is received. OFF – Lights when the SB CH MODE or virtual 8 Volume level indicator surround back mode is set to OFF. 9 MULTI-ROOM indicator Lights when the MULTI ROOM system is on. VSX-55TXi...

  • Page 178: Rear Panel

    You can use these jacks to hook up other Use these terminals to output a digital signal to a PIONEER equipment, that has a CONTROL DVD-R, CD-R, MD recorder or any other kind of terminal, so that you can control them all by digital recorder.
  • Page 179 VSX-55TXi (Single) 11 MULTI-ROOM & SOURCE REMOTE IN 15 Audio input/output terminals (connect terminal analog components here) Use this terminal to hook up a sub-system in a Use these terminals to input/output the audio secondary room. This hook up requires a...

  • Page 180: Remote Control Unit

    8.4 REMOTE CONTROL UNIT This page describes the buttons on the remote control used to operate the receiver. VSX-55TXi : AXD7325 1 Remote Control Display Screen 2 SOURCE button Use this button to turn on/off other components. You must input the preset code in order to use this function.
  • Page 181 12 SYSTEM OFF button This button turns off components in two ways. HI-BIT button First, when pressed it will turn off all PIONEER Use this button to switch the AUDIO SCALER on components. Secondly, any component that has or off.
  • Page 182 VSX-53TX : AXD7365 VSX-53TX VSX-53TX (Single) VSX-55TXi...

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