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Pioneer VSX-45TX Service Manual

Audio/video multi-channel receiver.
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Table of Contents
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-45TX
VSX-43TX
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type
VSX-45TX
KUXJI/CA
VSX-43TX
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 2002
STANDBY/ON
MOVIE
MUSIC
MULTI JOG
Power Requirement
AC120V
AC120V
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
STANDBY
MULTI CHANNNEL
ACOUSTIC CALIBRATION
ENTER
STEREO/DIRECT
MULTI CH IN
ACOUSTIC EQ
MASTER VOLUME
MULTI JOG CONTROL
SIGNAL
HI-BIT
SB CH
STATION TUNING
TUNER
MULTI ROOM
& SOURCE
SET UP
RETURN
SELECT
HI-SAMPLING
MODE
BAND
CLASS
EDIT
SELECT
CONTROL
ON/OFF
PHONES
TONE CONTROL
SETUP
MULTI JOG/ENTER
SPEAKERS
TONE
BASS/TREBLE
MIC
DIGITAL IN
S-VIDEO
VIDEO
L
AUDIO
R
VIDEO INPUT
VSX-45TX
VSX-45TX
ORDER NO.
RRV2635
Remarks
T-ZZK JULY 2002 printed in Japan

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Table of Contents

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   Summary of Contents for Pioneer VSX-45TX

  • 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 By following the instructions in this manual, be sure to apply the prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed ones should be used. VSX-45TX...
  • Page 4: Table Of Contents

    7.1.1 PROTECTION CIRCUIT CONTROL SPECIFICATION ..............116 7.1.2 DIAGNOSTICS OF AMPLIFIER SECTION ..................118 7.1.3 TROUBLE SHOOTING ........................119 7.1.4 DISASSEMBLY ........................... 124 7.2 PARTS..............................127 7.2.1 IC ................................ 127 7.2.2 DISPLAY ............................. 141 7.3 CLEANING............................. 143 8. PANEL FACILITIES ............................145 VSX-45TX...
  • Page 5: Specifications

    CD-R/TAPE 1, MD/TAPE 2.....335 mV/47 kΩ TV/SAT.............1 Vp-p/75 Ω Frequency Response Output (Level/Impedance) PHONO MM (VSX-45TX)..20 Hz to 20,000 Hz ± 0.3 dB VCR 1/DVR, VCR 2, MONITOR OUT, VCR 1/DVR, VCR 2, DVD/LD, TV/SAT, VIDEO, CD, MONITOR OUT2..........1 Vp-p/75 Ω...
  • Page 6: Exploded Views And Parts List

    SETUP RECEIVER SOURCE MULTI SYSTEM Dry Cell Battery Operating Instructions OPERATION MULTI CONTROL S0URCE SYSTEM RECEIVER (LR6, AA) (VSX-45TX : ARB7257) DVD/LD TV / SAT VCR/DVR TV CONT VCR 2 TUNER RECEIVER (VSX-43TX : ARB7261) VCR1/ DVD/LD TV/SAT TV CONT...
  • Page 7 Z21-038 Packing Case See Contrast table (2) (0.03*230*340) Remote Control Unit See Contrast table (2) (2) CONTRAST TABLE VSX-45TX/KUXJI/CA and VSX-43TX/KUXJI/CA are constructed the same except for the following: VSX-45TX/KUXJI/ VSX-43TX/KUXJI/ Mark Symbol and Description MIC Assy APM7004 Not used...
  • Page 8: Exterior Section

    2.2 EXTERIOR SECTION Refer to "2.3 REAR PANEL SECTION." Refer to "2.4 HEAT SINK SECTION." VSX-43TX ONLY 29 42 52 52 VSX-45TX ONLY VSX-45TX ONLY Refer to "2.5 FRONT PANEL SECTION." VSX-45TX...
  • Page 9 Screw Cover Push Rivet AEC7370 See "2.5 FRONT PANEL SECTION" No. 19-3 Trans Frame 45 ANG7399 (2) CONTRAST TABLE VSX-45TX/KUXJI/CA and VSX-43TX/KUXJI/CA are constructed the same except for the following: VSX-45TX/KUXJI/ VSX-43TX/KUXJI/ Mark Symbol and Description SP/PS Assy AWX7975 AWX8037...
  • Page 10: Rear Panel Section

    2.3 REAR PANEL SECTION 21(VSX-45TX ONLY) 23(VSX-45TX ONLY) VSX-45TX ONLY (VSX-45TX ONLY) For Exterior Sction (VSX-45TX ONLY) For Exterior Sction For Heat Sink Sction For Exterior Sction For Front Sction For Exterior Sction For Exterior Sction VSX-45TX...
  • Page 11 Screw See Contrast table (2) Cord Stopper CM-22C > AC Power Cord VDG1075 (2) CONTRAST TABLE VSX-45TX/KUXJI/CA and VSX-43TX/KUXJI/CA are constructed the same except for the following: VSX-45TX/KUXJI/ VSX-43TX/KUXJI/ Mark Symbol and Description RS232C Assy AWX7966 Not used COMPONENT Assy...
  • Page 12: Heat Sink Section

    2.4 HEAT SINK SECTION For Rear Panel Sction VSX-45TX...
  • Page 13 AEE7047 NSP 8 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 BBZ30P080FZK Screw BBZ30P300FMC Screw ABA7085 > TH1 Thermistor AEX7004 VSX-45TX...
  • Page 14: Front Panel Section

    2.5 FRONT PANEL SECTION VSX-45TX ONLY VSX-45TX ONLY 19-2 VSX-45TX ONLY 18 (VSX-45TX ONLY) CUT (VSX-43TX ONLY) 19-1 VSX-45TX...
  • Page 15 ABA7009 19-2 Magnet Holder 19-3 Screw Cover Cushion Circle 6B AED7044 (2) CONTRAST TABLE VSX-45TX/KUXJI/CA and VSX-43TX/KUXJI/CA are constructed the same except for the following: VSX-45TX/KUXJI/ VSX-43TX/KUXJI/ Mark Symbol and Description MIC & F.OPT IN Assy AWX7981 Not used DISPLAY Assy...
  • Page 16: Block Diagram And Schematic Diagram

    3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 AUDIO BLOCK DIAGRAM IC1681 CN1802 CN101 VSX-45TX DSP ASSY PCM2902EG JA1681 (1/2)(20P) (1/2)(20P) ONLY DIGITAL COAXIAL IN USB AUDIO IC201 OUT2 ASSY AK4114VQ DIR & DIT JA1801 IN 3 (CD-R/TAPE1) SDTO IN 4...
  • Page 17: Input Connect Assy

    CN4454 (10P) JA112 (2/2) POWER AMP-C ASSY TAPE2 CD-R REC POWER AMP-R MD REC ASSY CN103 (9P) V-AUDIO IN ASSY CN1404 (9P) VSX-45TX CN1205 VSX-45TX CN1405 CN1204 IC401 IC1541 ONLY (3/3) (2/2)(17P) (2/2)(17P) ONLY UPC4570G2 M62429FP MR L MULTI-ROOM & SOURCE...
  • Page 18: Dsp Block Diagram

    3.2 DSP BLOCK DIAGRAM DSP ASSY IC101 CN301 AK5380VT IC201 CN1802 AK4114VQ DIR & DIT CN651 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 VSX-45TX...
  • Page 19 IC501 AK4383VT IC521 AK4383VT IC503 TC7SH04FU BUFFER IC541 AK4383VT IC561 AK4382AVT IC401 DSPC56367PV150 DSP2 VSX-45TX...
  • Page 20: Video And Power Amp Block Diagram

    3.3 VIDEO AND POWER AMP BLOCK DIAGRAM JA1001 IC1002 (1/2) COMPONENT ASSY TK15450M JA1003 Y Amp. (DVD/LD) MONITOR OUT IC1003 (2/2) (COMPONENT TK15450M VIDEO) Cb Amp. VSX-45TX (TV/SAT) IC1003 (1/2) IC1051 ONLY TK15450M PDC084A Cr Amp. JA1002 IC101 TC74HC4053AF Selector CN1001 (9P)
  • Page 21 VSX-45TX...
  • Page 22: Overall Wiring Diagram

    3.4 OVERALL WIRING DIAGRAM VOLUME ASSY (AWX7971) DISPLAY ASSY (VSX-45TX : AWX7983) (VSX-43TX : AWX8011) MIC & F.OPT IN ASSY (AWX7981) FRONT IN ASSY (AWX7977) MIC AMP ASSY HEADPHONE ASSY (AWX8004) (AWX7980) VSX-45TX ONLY 1/2, VSX-45TX ONLY DSP ASSY (AWX8016)
  • Page 23 VH TR ASSY (AWX7979) (AWX8018) CONNECTION FU4, FU5 : REK1113 ASSY (3A/125V) (AWX8005) DIODE ASSY POWER AMP-C (VSX-45TX : AWX8017) ASSY (VSX-43TX : AWX8038) (AWX7986) SP/PS ASSY (VSX-45TX : AWX7975) (VSX-43TX : AWX8037) PRIMARY ASSY (AWX7968) FU1 : VEK1029 (10A/125V)
  • Page 24: Fm/am Tuner Module

    3.5 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-45TX...
  • Page 25 : 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-45TX...
  • Page 26: Ch I/o, V-audio In, Front In And Optical In Assys

    3.6 7.1CH I/O, V-AUDIO IN, FRONT IN and OPTICAL IN ASSYS BUFFER FRONT SURROUND CENTER (SB) WOOFER (SB) (SB) (SB) (SB) SURROUND BACK PREOUT MUTE WOOFER CENTER 7.1CH I/O ASSY (AWX7973) FRONT CN1408 SURROUND (SB) (SB) (SB) SURROUND BACK : The power supply is shown with the marked box. VSX-45TX...
  • Page 27: Front In Assy

    VSX-45TX ONLY V-AUDIO IN ASSY (MR) (MR) (VSX-45TX : AWX7964) (MR) (VSX-43TX : AWX7991) MUTE VSX-45TX : CN1205 (1/3-3/3) AKB7009 VSX-45TX : (2/3) : AUDIO SIGNAL ROUTE (Lch) VSX-43TX : (1/2) VSX-43TX : CN1202 (1/2-2/2) (MR) AKB7015 : AUDIO SIGNAL ROUTE (MULTI-ROOM Lch)
  • Page 28: Input Connect And Coaxial In Assys

    3.7 INPUT CONNECT and COAXIAL IN ASSYS INPUT CONNECT ASSY (VSX-45TX : AWX7974) (VSX-43TX : AWX8041) CN1204 CN101 (DVD) (DVD) VSX-45TX ONLY : AUDIO SIGNAL ROUTE (Lch) (MR) : AUDIO SIGNAL ROUTE (MULTI-ROOM Lch) (DVD) : AUDIO SIGNAL ROUTE (DVD Lch)
  • Page 29 DIGITAL USB AUDIO USB RECEIVER IC1681 PCM2902EG (UD) (UD) (UD) VSX-45TX ONLY COAXIAL IN ASSY (VSX-45TX : AWX7965) (VSX-43TX : AWX8013) : The power supply is shown with the marked box. (1/2) (CD-R/TAPE1) (CD) (2/2) (UD) CN2406 CN101 VSX-45TX...
  • Page 30: Video Assy

    3.8 VIDEO ASSY VIDEO ASSY (VSX-45TX : AWX7962) (VSX-43TX : AWX8002) VIDEO VCR1/ MAIN FUNCTION (COMP) S VIDEO VSX-45TX ONLY VIDEO VCR2 S VIDEO MAIN FUNCTION (SY) VIDEO (SC) (SY) DVD/LD (SY) (SY) S VIDEO (SC) (SC) VIDEO TV/SAT MAIN FUNCTION (C)
  • Page 31 : VIDEO SIGNAL ROUTE (MR) VSX-43TX : VIDEO SIGNAL ROUTE (MULTI-ROOM) ONLY (SY) : VIDEO SIGNAL ROUTE (S VIDEO Y ch) (SC) : VIDEO SIGNAL ROUTE (S VIDEO C ch) VSX-45TX VSX-45TX ONLY ONLY MULTI-ROOM (MR) SUB FUNCTION & SOURCE MONITOR OUT...
  • Page 32: Component And Rs232c Assys

    3.9 COMPONENT and RS232C ASSYS COMPONENT ASSY (VSX-45TX : AWX7963) (VSX-43TX : AWX8021) VIDEO AMP (PB) IC101 TC74HC4053AF (PB) (PB) (PR) (PB) (PR) COMPONENT SIGNAL COMPONENT SELECTOR VIDEO (PR) (PB) (PR) (PR) VSX-45TX CAUTION : FOR CONTINUED PROTECTION AGAINST ONLY RISK OF FIRE.
  • Page 33 : The power supply is shown with the marked box. (PB) (PB) (PR) VSX-45TX ONLY (PR) (PR) (PB) (PR) 1SS355 1SS355 : VIDEO SIGNAL ROUTE (Y) (PB) : VIDEO SIGNAL ROUTE (P (PR) CN2404 : VIDEO SIGNAL ROUTE (P VSX-45TX...
  • Page 34: Main Control Assy (1/3)

    3.10 MAIN CONTROL ASSY (1/3) CONTROL (TX) (CD-R) (CD-R) CD-R/ (TX) TAPE1 PLAY CD-R/ TAPE1 TAPE2 (CD-R) MAIN FUNCTION PLAY TAPE2 VSX-45TX ONLY PHONE/ LINE MAIN CONTROL ASSY (VSX-45TX : AWX7961) (VSX-43TX : AWX8000) CN1401 VSX-45TX...
  • Page 35 CN601 CN1403 VSX-43TX VSX-45TX ONLY ONLY R135, R136 : VSX-45TX : 9.1kΩ VSX-43TX : 0Ω (SB) 2SC3326 4.7k 2SC3326 4.7k VSX-43TX ONLY INPUT BUFFER /PHONO FLAT GAIN SUB FUNCTION (MR) BUFFER FOR MR : AUDIO SIGNAL ROUTE (Lch) (CD-R) : AUDIO SIGNAL ROUTE (CD-R Lch)
  • Page 36: Main Control Assy (2/3)

    3.11 MAIN CONTROL ASSY (2/3) MAIN CONTROL ASSY (VSX-45TX : AWX7961) (VSX-43TX : AWX8000) PREAMP & MAIN (MASTER) VOLUME 1/3,3/3 (SB) (SB) (SB) (SB) (SB) (SB) (SB) VSX-45TX...
  • Page 37 : 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 CN4001 (SB) CN1404 VSX-45TX...
  • Page 38: Main Control Assy (3/3)

    3.12 MAIN CONTROL ASSY (3/3) 10V REGULATOR +10V VSX-43TX ONLY VSX-45TX ONLY 1/3,2/3 RESET IC501 PD5770B8 MAIN CONTROL µ-COM PORT EXPANDER CN2415 CN2414 CN2412 VSX-45TX...
  • Page 39: Main Control Assy

    CN3006 MAIN CONTROL ASSY (VSX-45TX : AWX7961) (VSX-43TX : AWX8000) (TX) : AUDIO SIGNAL ROUTE (TUNER Lch) CN2411 IC302 TC74VHCT244AFT LEVEL SHIFT 3.3V ––> 5V BUFFER : The power supply is shown with the marked box. CN2413 VSX-45TX...
  • Page 40: Mic & F.opt In, Mic Amp And Dsp Connection Assys

    3.13 MIC & F.OPT IN, MIC AMP and DSP CONNECTION ASSYS VSX-45TX ONLY MIC & F.OPT IN ASSY (AWX7981) DIGITAL CN3004 SETUP CN2409 CN2408 MIC AMP ASSY (AWX8004) MIC AMP CN2407 VSX-45TX ONLY : The power supply is shown with the marked box.
  • Page 41 DSP CONNECTION ASSY (AWX8024) LEVEL SHIFT 5V ––> 3.3V AKP7177 VSX-45TX...
  • Page 42: Power Amp In, Fan Drive And Fan Connection Assys

    3.14 POWER AMP IN, FAN DRIVE and FAN CONNECTION 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) (SB) OVER LOAD DETECTION 1SS355 (SB) CN4401 VSX-45TX...
  • Page 43: Fan Connection Assy

    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. J2201 Non Connection FAN DRIVE ASSY (AWX7976) +25.2V 1SR154-400 1SR154-400 1SS355 VSX-45TX...
  • Page 44: Dsp Assy (1/2)

    3.15 DSP ASSY (1/2) DSP ASSY (AWX8016) (SD) (UD) (F)(S)(SB)(C) (SD) (UD) (UD) (UD) (SB) (SD) (SD) (SD) CN1651 VSX-45TX...
  • Page 45 : 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-45TX...
  • Page 46: Dsp Assy (2/2)

    3.16 DSP ASSY (2/2) DSP ASSY (AWX8016) (F)(S)(SB)(C) (F)(S)(SB)(C) (F)(S)(SB)(C) (SB) (SB) (SB) VSX-45TX...
  • Page 47 : 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) VSX-45TX...
  • Page 48: Display Assy

    3.17 DISPLAY ASSY DISPLAY ASSY (VSX-45TX : AWX7983) (VSX-43TX : AWX8011) VSX-43TX VSX-45TX ONLY ONLY REMOTE SIGNAL CONTROL CN501 VSX-45TX...
  • Page 49 52045-0345 (HP) CN1951 (HP) CN2002 CN3401 CN3451 CN1601 VSX-45TX ONLY CN1501 VSX-45TX ONLY (HP) : AUDIO SIGNAL ROUTE (PHONES ch) CN4752 VSX-45TX...
  • Page 50: Volume, Multi Jog And Headphone Assys

    3.18 VOLUME, MULTI JOG and HEADPHONE ASSYS VOLUME ASSY (AWX7971) J3002 ROTARY ENCODER S3401 : MASTER VOLUME S3402 : ACOUSTIC EQ S3403 : MULTI CH IN S3404 : STEREO/DIRECT VSX-45TX...
  • Page 51: Headphone Assy

    MULTI JOG ASSY (AWX7972) S3451 : MULTI JOG S3452 : ENTER S3453 : MUSIC S3454 : MOVIE S3455 : STANDBY/ON J3003 ROTARY ENCODER (HP) : AUDIO SIGNAL ROUTE (PHONES ch) HEADPHONE ASSY (AWX7980) CN3007 (HP) (HP) PHONES VSX-45TX...
  • Page 52: Regulator Assy

    +11.4V -15V VIDEO +5.6V CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE -11.4V +43.7V NO. 491.315 MFD, BY LITTELFUSE INK. FOR IC2411. -5.6V µ-COM +5.6V FOR VIDEO +41.8V +11.8V D3SBA20(B) CN1803 CN1001 CN901 VSX-45TX...
  • Page 53 FOR TUNER +12V FOR AD CN1652 CN1653 CN1654 : The power supply is shown with the marked box. VSX-45TX...
  • Page 54: Power Amp-l Assy

    3.20 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) : AUDIO SIGNAL ROUTE (CENTER ch) VSX-45TX...
  • Page 55 : The power supply is shown with the marked box. POWER AMP CURRENT AMPLIFYING STAGE POWER AMP VOLTAGE AMPLIFYING STAGE (SB) (SB) (SB) (SB) (SB) (SB) (SB) (SB) CN4455 VSX-45TX...
  • Page 56: Power Amp-r And Power Amp-c Assys

    3.21 POWER AMP-R and POWER AMP-C ASSYS POWER AMP VOLTAGE AMPLIFYING POWER AMP-R ASSY (AWX7985) STAGE DC DETECTION POWER AMP-C ASSY (AWX7986) VSX-45TX...
  • Page 57 POWER AMP CURRENT AMPLIFYING STAGE CN4602 CN4604 CN4604 : The power supply is shown with the marked box. : AUDIO SIGNAL ROUTE (CENTER ch) CN4602 VSX-45TX...
  • Page 58: Sp/ps, Diode, Trans 2-1 And Vh Tr Assys

    3.22 SP/PS, DIODE, TRANS 2-1 and VH TR ASSYS DIODE ASSY (VSX-45TX : AWX8017) (VSX-43TX : AWX8038) CAUTION : FOR CONTINUED PROTECTION AGAINST D2241, D2242 : RECTIFIER RISK OF FIRE. REPLACE ONLY WITH VSX-45TX : LN6SB60-4003 FOR POWER AMP SAME TYPE NO. 4913.15 MFD, BY VSX-43TX : B5SBA20(B) LITTELFUSE INK.
  • Page 59 SP/PS ASSY (VSX-45TX : AWX7975) (VSX-43TX : AWX8037) RY4601-RY4605 : VSX-45TX : ASR7014 VSX-43TX : ASR7026 ADX7291 FRONT AKE7074 (SB) SURROUND (SB) SURROUND BACK/ AKE7075 CENTER (SB) (SB) (HP) VSX-45TX ONLY R4628-R4632 : VSX-45TX : 330Ω VSX-43TX : 470Ω D4601-D4610 : 1SS355...
  • Page 60: Trans 2-2, Trans 1 And Primary Assys

    LITTELFUSE INK. FOR IC2251 AND IC2252. (HP) (HP) CAUTION : FOR CONTINUED PROTECTION AGAINST CN3001 RISK OF FIRE. REPLACE ONLY WITH POWER SAME TYPE NO. 491005 MFD, BY TRANSFORMER LITTELFUSE INK. FOR IC2253. TRANS 1 ASSY (AWX7969) AE AF AG VSX-45TX...
  • Page 61: Primary Assy

    CN4613 CN4610 (HP) : AUDIO SIGNAL ROUTE (PHONES ch) PRIMARY ASSY (AWX7968) (HP) AC OUTLET AC RELAY LIVE VEK1029 (10A/125V) AC IN NEUTRAL VSX-45TX...
  • Page 62: 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 transistor P.C.Board Chip Part Resistor array 3-terminal regulator VSX-45TX...
  • Page 63: Fm/am Tuner Module

    4.1 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-45TX...
  • Page 64: Ch I/o Assy

    C1329 W1322 CN1308 CN1306 CN1307 (ANP7419-B) CN1307 CN1306 CN1308 CN1406 CN1407 CN1408 SIDE B SIDE B 7.1CH I/O ASSY CN1307 CN1306 CN1308 R1366 R1389 C1393 C1391 (ANP7419-B) IC1304 IC1303 IC1302 IC1301 Q1371 Q1372 Q1362 Q1352 Q1361 Q1351 Q1381 Q1382 VSX-45TX...
  • Page 65: V-audio In Assy

    4.3 V-AUDIO IN ASSY SIDE A SIDE A V-AUDIO IN ASSY Q1201 Q1202 W1204 (ANP7420-B) CN1204 CN1405 SIDE B SIDE B V-AUDIO IN ASSY CN1204 (ANP7420-B) VSX-45TX...
  • Page 66: Front In, Optical In And Input Connect Assys

    W1423 L CH R CH W1421 L CH R CH C1404 R1405 C1402 CMK-P3X C1401 W1413 W1416 W1412 W1411 W1415 W1405 W1406 W1403 W1402 W1407 W1404 CN1408 CN1406 CN1407 (ANP7420-B) CN1406 CN1407 CN1408 D E F CN1307 CN1306 CN1308 VSX-45TX...
  • Page 67 INPUT CONNECT ASSY CN1404 CN1403 CN1401 CN1402 CN1405 R1404 C1406 C1407 R C H L C H L C H R C H IC1401 IC1401 IC1451 R1452 C1454 IC1451 C1455 C1453 R1453 R1454 R1451 (ANP7420-B) CN1408 CN1407 CN1406 D E F VSX-45TX...
  • Page 68: Coaxial In Assy

    C1836 R1860 C1823 CN1803 C1850 R1686 R1687 C1690 CN1803 (ANP7418-A) CN2406 IC1804 IC1802 IC1881 Q1807 Q1805 Q1804 Q1804 Q1801 IC1803 IC1681 SIDE B SIDE B COAXIAL IN ASSY CN1803 CN1803 CN1801 (ANP7418-A) CN1801 CN1802 Q1808 Q1806 Q1802 IC1682 Q1809 VSX-45TX...
  • Page 69: Video Assy

    R972 C944 R953 V-5V R945 R910 C907 V+5V R946 R952 C916 R940 C913 C911 R971 VIDEO ASS'Y R951 (ANP7418-A) Q901 Q931 Q932 IC902 IC901 IC903 Q933 SIDE B SIDE B VIDEO ASSY C962 C921 C965 (ANP7418-A) IC933 IC931 IC932 VSX-45TX...
  • Page 70: Main Control And Rs232c Assys

    R502 R551 R201 R556 R557 R562 C501 C212 IC511 IC202 CN201 (FOR MR) 7.MR CK 6.MR DT CN502 5.MR MUTE 4.GNDU C211 3.RCH 2.GNDA 1.LCH C115 C116 CN201 CN101 CN502 CN2415 CN1402 CN1401 CN2413 IC1931 Q1901 Q1931 IC1932 JA19 VSX-45TX...
  • Page 71 RS232C ASSY CN1902 CMK-P3X +UNREG C1903 W1906 C1933 +12/ON C1905 W1901 W1902 CAUTION W1903 CN2403 REPLACE C1906 Q1901 WITH SAME C1932 L1901 Q1901 C1910 TYPE W1907 IC1932 MFD. BY NO. 491.125, FOR C1904 JA1922 LITTELFUSE INC. CN1901 (ANP7420-B) VSX-45TX ONLY VSX-45TX...
  • Page 72 CN301 CN301 CN551 CN552 CN302 CN351 CN351 CN551 CN552 CN302 RS232C ASSY CN1902 EN CAS DE REMPLACEMENT DES FUSIBLES ATTENTION IC 1932 N'UTILISER QUE LA REFERENCE 491.125 DE CHEZ LITTELFUSE INC. +UNREG IC1901 +12/ON Q1932 IC1932 VSX-45TX ONLY (ANP7420-B) VSX-45TX...
  • Page 73 SIDE B Q601 Q251 CN601 CN601 CN351 CN502 (ANP7418-A) CN502 20-B) VSX-45TX...
  • Page 74: Mic & F. Opt In, Mic Amp And Dsp Connection Assys

    4.8 MIC & F. OPT IN, MIC AMP and DSP CONNECTION ASSYS SIDE A MIC & F.OPT IN ASSY JA1601 JA1606 CN1601 CN1602 VSX-45TX ONLY 1 2 3 (ANP7418-A) CN1602 CN1601 MIC AMP ASSY CN3004 HCMK-P3X CN4751 MIC AMP ASS'Y...
  • Page 75 SIDE B MIC & F.OPT IN ASSY HCMK-P3X C1602 R1608 C1601 R1601 C1611 C1606 VSX-45TX ONLY C1612 C1613 C1614 R1609 C1607 R1607 MIC & F.OPT ASS'Y (ANP7418-A) CN1601 CN1602 MIC AMP ASSY CN4751 IC4752 AWX8004 HCMK-P3X (ANP7418-A) CN4752 DSP CONNECTION ASSY...
  • Page 76: Power Amp In Assy

    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-B) 23.GNDSBR CMK-P3X 24.SBR CN4001 CN4002 CN4003 CN801 CN4402 CN4401 SIDE B SIDE B POWER AMP IN ASSY CN4001 CN4002 CN4003 R4001 R4004 D4001 (ANP7419-B) CN4004 Q4001 VSX-45TX...
  • Page 77: Fan Drive And Fan Connection Assys

    491.200,DE CHEZ LITTELFUSE INC. 7.FANSTOP 6.REG B IC4702 (ANP7418-A) CN4702 CN4701 IC4701 IC4702 J2201 SIDE B SIDE B FAN CONNECTION ASSY CN4701 J4701 (ANP7418-A) CN4702 CN4701 J4701 FAN DRIVE ASSY R4055 R4051 Q4054 Q4052 Q4055 Q4056 D4055 Q4056 R4053 R4056 (ANP7419-B) VSX-45TX...
  • Page 78: Dsp Assy

    IC901 L202 C693 C695 C105 R231 L201 C212 C210 C203 R911 R221 C561 R912 R913 R227 D702 8016 E88558(S) (ANP7441-A) CN102 CN101 CN1651 CN1802 Q972 IC661 IC621 IC471 IC302 IC306 Q971 IC561 IC521 IC301 IC304 IC305 IC701 IC901 IC201 VSX-45TX...
  • Page 79 In the two middle layers, mainly Vcc and GND are connected. DSP ASSY L R SW SL SBL SR JTAG E88558(S) (ANP7441-A) Q701 IC303 IC451 IC681 Q682 Q681 Q702 IC706 IC101 IC401 1802 IC705 Q601 Q621 Q641 Q661 IC601 IC611 Q974 IC503 IC501 IC902 IC541 Q973 VSX-45TX...
  • Page 80: Display, Volume, Multi Jog And Headphone Assys

    U5.6V W3545 W3546 D3001 U5.6V W3530 W3529 W3522 W3531 C3012 W3520 W3526 W3525 W3528 U5.6V W3511 J3003 UGND W3513 UGND W3512 S3014 S3011 S3008 S3004 S3001 UGND C3008 S3005 S3002 S3017 S3016 S3013 S3010 S3007 IC3002 S U V VSX-45TX...
  • Page 81: Volume Assy

    U5.6V D3011 C3029 W3558 3001 W3553 C3027 CN4752 C3028 W3552 W3556 C3020 C3022 +15V CN3006 C3023 W3555 -15V W3532 U5.6V DISPLAY ASS'Y CN501 5.6V W3511 W3513 W3519 3512 S3001 S3000 S3003 S3006 S3009 S3012 S3015 (ANP7421-A) S T V VSX-45TX...
  • Page 82 U5.6V 22.DISP_CK 11.U+5.6V 23.DISP_RDY 12.F VIDEO 24.DISP_RST 13.FV_Y 25.1W W.UP 14.FV_C 26.AC RY 15.232C DET 27.MR IN 16.OPTG 28.UGND 17.OPT 29.UGND 18.OPT5V 30.VF R3006 19.DISP_CS 31.FL AC1 C3000 20.DISP_DI 32.FL AC2 R3003 R3012 R3009 R3015 Q3004 S T V VSX-45TX...
  • Page 83: Multi Jog Assy

    R3041 1.P-SW1 U5.6V R3034 U5.6V R3031 Q3001 R3032 D3002 D3003 C3010 D3004 C3007 U5.6V 1.UCOM5V 2.UGND 3.INPUT/L 4.INPUT/R R3011 5.KEY5 R3014 R3004 6.P-SW1 7.P-SW2 R3005 (ANP7421-A) R3007 R3010 R3013 R3016 IC3000 Q3003 Q3002 Q3000 Q3001 IC3001 S U V VSX-45TX...
  • Page 84: Regulator And Component Assys

    W2413 CN2413 CN2411 W2415 W2412 CN502 CN351 W2411 W2407 W2406 IC2411 W2408 IC2404 IC2406 IC2405 IC2402 W2409 W2410 CN2405 CN901 CN2405 W2405 PRODUCTION CODE CN2404 CN2404 W2403 W2513 W2512 W2511 CN1903 CN2403 CN2403 W2402 W2510 W2401 CN2401 J4602 CN2401 VSX-45TX...
  • Page 85: Component Assy

    D2416 W2449 W2455 L2401 2402 L2402 Y2401 W2448 C2435 C2438 W2446 (ANP7419-B) C2408 Q2401 IC2402 IC2401 IC2403 CN2411 CN2410 CN2414 CN351 CN302 IC2409 IC2410 Q2402 IC2402 IC2401 IC2403 Q2401 COMPONENT ASSY (ANP7418-A) IC1051 IC1001 Q1003 IC1003 IC1002 Q1002 Q1001 VSX-45TX...
  • Page 86 CN2412 CN2409 CN2408 CN2407 C2447 C2434 D2423 C2413 C2404 C2407 (ANP7419-B) D2405 CN2414 CN2410 CN2411 CN2412 COMPONENT ASSY C1003 C1006 C1005 C1001 C1002 C1004 R1005 R1006 R1002 R1003 R1001 R1004 C1024 C1026 L1053 C1061 Q1051 R1055 C1055 (ANP7418-A) Q1051 VSX-45TX...
  • Page 87 SIDE B 2407 CN2406 CN2415 C2447 D2404 C2428 D2403 C2413 D2401 D2402 CN2411 CN2413 CN2405 D2419 CN2404 D2418 CN2403 CN2401 VSX-45TX...
  • Page 88: Power Amp L And Power Amp C Assys

    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-45TX...
  • Page 89 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 W3147 W3149 CN4602 (ANP7421-A) CN4453 CN4454 VSX-45TX...
  • Page 90 D4103 D4101 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 VSX-45TX...
  • Page 91 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-45TX...
  • Page 92: Power Amp R Assy

    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-45TX...
  • Page 93 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-45TX...
  • Page 94 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-45TX...
  • Page 95 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-45TX...
  • Page 96: 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 R4625 CN4610 C4629 CN4613 CN4612 CMK-P3X OPEN SIDE OPEN SIDE SP/PS ASS'Y C4612 C4605 (ANP7420-B) CN4613 CN4603 CN4610 CN2004 CN2003 VSX-45TX...
  • Page 97 4.NECK Q4602 3.REG B D4605 2.REG G R4639 8.W UP 1.REG B D4606 7.ST+5.6V 0 0 0 6.STG 5.-15V 4.+15V 2401 3.REG B Q4601 2.REG G 4 4 4 1.REG B SP/PS ASS'Y (ANP7420-B) CN4610 CN4613 Q4603 Q4602 Q4601 VSX-45TX...
  • Page 98: Diode, Trans 2-1 And Vh Tr Assys

    W2247 DIODE Q2231 2.+B W2248 W2249 ASS'Y 3.+VH W2242 4.-VH Q2231 5.-B W2251 W2252 6.-C W2253 Q2232 CN2231 W2244 W2254 W2246 VH TR ASS'Y W2255 D2242 D2241 Q2232 CMK-P3X (ANP7420-B) DIODE ASSY (ANP7420-B) VH TR ASSY AB AC AD VSX-45TX...
  • Page 99 REG G 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-B) C2231 D2231 R2232 D2232 (ANP7420-B) AWX8018 DIODE ASSY 20-B) (ANP7420-B) VH TR ASSY AB AC AD VSX-45TX...
  • Page 100: Trans 2-1, Trans 1 And Primary Assys

    W2007 W2004 T2001 W2011 W2012 W2014 IC2001 W2013 IC2001 W2022 L2003 W2015 7968 W2016 7994 W2017 PRIMARY 7998 W2018 C2004 7999 ASSY W2026 W2023 W2019 7987 W2020 W2027 7988 CN2003 CN2004 (ANP7419-B) CN2003 CN2004 CN4610 CN4613 AE AF AG VSX-45TX...
  • Page 101 TRANS 2-2 ASSY REPLACE WITH SAME TYPE NO.491005 FOR IC2253, 4913.15 FOR IC2251 AND IC2252 MFD. BY LITTELFUSE INC. (ANP7419-B) (ANP7419-B) PRIMARY ASSY CN2002 SECONDARY PRIMARY AC IN C2012 C2005 C2007 2001 C2006 (ANP7419-B) CN2004 CN2003 AE AF AG VSX-45TX...
  • Page 102: 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-45TX/ VSX-43TX/ Mark Symbol and Description KUXJI/CA KUXJI/CA 1..FM/AM TUNER MODULE AXQ7231 AXQ7231 1..REGULATOR ASSY...
  • Page 103 IC933 BU4053BCF Not used Q901 2SA933S Not used D902 DAN202K Not used C909, C910, C918 CEAT101M16 Not used C911-C913, C915, C916, C921, C957, CKSRYB473K50 Not used C958 C914 CCSRCH470J50 Not used C919 CCSRCH150J50 Not used C920 CEAT470M25 Not used VSX-45TX...
  • Page 104 Not used R161, R162 Not used RS1/16S0R0J R201-R203, R215, R216 RS1/16S471J Not used R213, R214 RS1/16S474J Not used R523, R524 Not used RS1/16S473J CN201 7P PLUG AKP7056 Not used CN551 KR CONNECTOR B8B-PH-K-S Not used PCB BINDER VEF1040 Not used VSX-45TX...
  • Page 105 DIODE ASSY AWX8017 and AWX8038 are constructed the same except for the following : Mark Symbol and Description AWX8017 AWX8038 > D2241, D2242 LN6SB60-4003 D5SBA20(B) • PARTS LIST FOR VSX-45TX Mark No. Description Part No. Mark No. Description Part No. D201...
  • Page 106 CN1301-CN1304 4P PIN JACK AKB7015 D1401 UDZS5.1B CN1306 5P SOCKET AKP7066 CN1307,CN1308 9P SOCKET AKP7068 CAPACITORS C1406,C1407 CCSQCH101J50 C1401-C1405,C1451,C1452 CEAT100M50 C1454,C1455 CKSRYB103K50 V-AUDIO IN ASSY C1453 CKSRYB472K50 SEMICONDUCTORS Q1201,Q1202 2SC2878 RESISTORS R1405 RS3LMF391J CAPACITORS Other Resistors RS1/16S###J C1201-C1212 CCSRCH221J50 C1213-C1215 CKSRYB103K50 OTHERS VSX-45TX...
  • Page 107 CAPACITORS JA1001-JA1003 3P PIN JACK VKB1150 C981-C983 CCSRCH101J50 C919,C960,C963 CCSRCH150J50 C922-C925,C969-C974 CCSRCH181J50 RS232C ASSY C955 CCSRCH330J50 SEMICONDUCTORS C914 CCSRCH470J50 > IC1932 AEK7020 C901-C904,C932,C935,C938 CEAT101M10 > IC1931 BA12T C941 CEAT101M10 IC1901 SP232AEN C905,C906,C909,C910,C918 CEAT101M16 Q1931 2SB1237X C945,C946,C951,C952,C959 CEAT101M16 Q1901 2SC1740S VSX-45TX...
  • Page 108 C719,C720,C739,C740 CCSRCH100D50 JA111-JA113 4P PIN JACK VKB1132 C759,C760,C779,C780 CCSRCH100D50 C125-C127,C151-C153 CCSRCH101J50 CN301 21P FFC CONNECTOR VKN1197 C201-C203,C725-C727 CCSRCH101J50 C745-C747,C765-C767 CCSRCH101J50 MIC & F.OPT IN ASSY C785-C787 CCSRCH101J50 COILS AND FILTERS C139,C140,C662 CCSRCH470J50 C131,C132,C621,C622 CEAT100M50 L1601 CHIP FERRITE BEAD ATL7002 VSX-45TX...
  • Page 109 D20PYY0915E OTHERS CN4702 3P PLUG KM250MA3 CN1652-CN1654 17P SOCKET AKP7072 CN1651 B TO B CONNECTOR 50P AKP7177 DSP ASSY SEMICONDUCTORS POWER AMP IN ASSY IC201 AK4114VQ SEMICONDUCTORS IC561 AK4382AVT Q4001 2SC2412K IC501,IC521,IC541 AK4383VT D4001 1SS355 IC101 AK5380VT IC301,IC401 DSPC56367PV150 VSX-45TX...
  • Page 110 BR5064X D3009 DAN202K C111,C112,C502,C522,C542 CEV100M16 C562,C607,C608,C627,C628 CEV100M16 D3000 MAA5064X C647,C648,C667,C668 CEV100M16 C681,C682 CEV100M16 COILS AND FILTERS C104,C105,C551,C907,C909 CEV101M16 L3000 CHIP FERRITE BEAD ATL7002 C106 CEV2R2M50 SWITCHES AND RELAYS C901,C902 CEV330M25 S3000-S3017 ASG7013 C210,C341,C401 CEV470M6R3 C212,C614,C624,C626 CKSRYB102K50 CAPACITORS C683-C685,C689,C693,C695 CKSRYB102K50 VSX-45TX...
  • Page 111: Volume Assy

    CKSRYB473K50 C2444 CQMBA104J50 CAPACITORS C3451,C3452 CKSRYB103K50 RESISTORS R2403 RD1/4MUF121J RESISTORS R2401 RD1/4MUF470J All Resistors RS1/16S###J Other Resistors RS1/16S###J OTHERS OTHERS CN3451 7P JUMPER CONNECTOR 52147-0710 7P CABLE HOLDER 51048-0700 CN2401 8P JUMPER CONNECTOR 52147-0810 Y2401 BOARD IN JUMPER ADX7420 VSX-45TX...
  • Page 112 C4464 CEANPR22M50 C4453 CEAT331M10 CN4456 10P PLUG KM250NA10L KN4401,KN4402 VNF1084 C4458,C4459 CEAT470M16 EARTH METAL FITTING C4454,C4455 CEAT470M63 C4460,C4461 CEHAT100M2A C4451 CEHAT100M50 POWER AMP-R ASSY RESISTORS SEMICONDUCTORS > R4469 (0.22W/5W) ACN7111 > IC4151,IC4251,IC4351 PA9009A Other Resistors RS1/16S###J > IC4152,IC4252,IC4352,IC4452 PBD001A VSX-45TX...
  • Page 113 LINE FILTER ATF7018 D2202 UDZ16B L2002,L2003 FERRITE BEAD VTH1013 D2207,D2208 UDZS22B TRANSFORMERS D2203-D2206,D2209-D2212 UDZS9.1B > T2001 ATT7043 CAPACITORS SWITCHES AND RELAYS > C2202,C2203 ACH1237 > RY2001 ASR7025 C2207,C2208 ACH7173 C2209,C2210 CEAT101M63 CAPACITORS C2211,C2212 CEAT221M63 > C2001,C2002 ACE7013 > C2003 ACG7033 VSX-45TX...
  • Page 114 R2002 RD1/2VM101J Other Resistors RS1/16S###J OTHERS CN2002 11P FFC CONNECTOR 52045-1145 > 2004 1P AC OUTLET AKP1033 H2001,H2002 FUSE CLIP AKR7001 CN2003,CN2004 5P SOCKET KP200TA5L > CN2001 AC CORD SOCKET RKP1751 SCREW TERMINAL VNE1948 KN2001 EARTH METAL FITTING VNF1084 VSX-45TX...
  • Page 115: 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-45TX...
  • Page 116: General Information

    If the port becomes "H" within 3 seconds, the unit resets automatically. FAN_DET port performs the chattering check for 7 msec. In addition, there is the case that detection delays for maximum 20 msec because performs monitor of FAN_DET port with a main loop. VSX-45TX...
  • Page 117 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-45TX...
  • Page 118: 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-45TX...
  • Page 119: 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-45TX...
  • Page 120 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-45TX...
  • Page 121 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-45TX...
  • Page 122 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-45TX...
  • Page 123 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-45TX...
  • Page 124: 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-45TX...
  • Page 125: Front Panel Block

    Remove two screws Remove the front panel block Top View Remove the DSP ASSY (screws × 4, connectors × 4) ASSY CN301 CN101 CN102 VSX-45TX Only MIC & F.OPT IN MULTI JOG ASSY ASSY HEADPHONE FRONT IN COAXIAL IN ASSY...
  • Page 126 COMPONENT ASSY V-AUDIO IN ASSY OPTICAL IN ASSY TRANS 1 SP/PS RS232C COAXIAL ASSY ASSY ASSY ASSY VSX-45TX Only VH TR ASSY DSP CONNECTION MAIN CONTROL ASSY INPUT TO TRANS ASSY CONNECT 2-2 ASSY PRIMARY ASSY REGULATOR ASSY ASSY VSX-45TX...
  • Page 127: Parts

    − GNDH Host GND HAD3 General-purpose port HAD2 General-purpose port HAD1 General-purpose port HAD0 General-purpose port RESET Reset − VCCP PLL power supply (1.8V) PCAP PLL capacitor connection pin − GNDP PLL GND SDI0_1 Digital audio data (Surroundback L/R) VSX-45TX...
  • Page 128 Address bus GND External memory address External memory address − GNDQ Quiet GND − VCCQL Quiet core power supply (1.8V) External memory address External memory address External memory address − VCCQH Quiet external power supply (3.3V) − GNDA Address bus GND VSX-45TX...
  • Page 129 Mode select A 138 SDI1_1 Digital audio data (Center/Subwoofer) 139 TDO JTAG data output 140 TDI JTAG data input 141 TCK JTAG test clock 142 TMS JTAG mode select 143 MOSI Microcomputer communication data input 144 MISO Microcomputer communication data output VSX-45TX...
  • Page 130 Host GND HAD3 DVD-A switch HAD2 DIR oscillation stop HAD1 LSSN modxe (LFE addition) HAD0 Analog mode RESET Reset − VCCP PLL power supply (1.8V) PCAP PLL capacitor connection pin − GNDP PLL GND SDI0_1 Digital audio data (Surroundback L/R) VSX-45TX...
  • Page 131 Address bus GND External memory address External memory address − GNDQ Quiet GND − VCCQL Quiet core power supply (1.8V) External memory address External memory address External memory address − VCCQH Quiet external power supply (3.3V) − GNDA Address bus GND VSX-45TX...
  • Page 132 Mode select A 138 SDI1_1 Digital audio data (Center/Subwoofer) 139 TDO JTAG data output 140 TDI JTAG data input 141 TCK JTAG test clock 142 TMS JTAG mode select 143 MOSI Microcomputer communication data input 144 MISO Microcomputer communication data output VSX-45TX...
  • Page 133 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-45TX...
  • Page 134 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-45TX...
  • Page 135 Destination read 2 WATT-IN Wattage detection Level detection with AD TEMP-IN Temperature detection Level detection with AD FAN STOP Fan forced stop detection − AVSS Connect to VSS – − VREF Connect to VCC − AVCC Connect to VCC 100 – VSX-45TX...
  • Page 136 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-45TX...
  • Page 137 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 138 Switch the DSP/DIRECT/MULTI CH IN of surround signal H: Multi ch input path PHONO GAIN "H" at PHONO equalizer ON DSDM For SACD "L" fixed TC74HC4053_INH Select the Component/D4 input (2 inputs → 1 output) TC74HC4053_A FAN DRIVE ON when rotates the FAN LOFAN Not used "H" fixed VSX-45TX...
  • Page 139 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-45TX...
  • Page 140 About PCM2902EG • With codec of USB BUS POWERED, power is supplied from Vbus of USB, and work. (work with a power supply of VSX-45TX irrelatively.) • Be USB codec, but analog I/O and digital (SPDIF) input are not using in VSX-45TX.
  • Page 141: 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-45TX...
  • Page 142 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-45TX...
  • Page 143: 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-45TX...
  • Page 144: Remote Control Unit

    7.4 REMOTE CONTROL UNIT 7.4.1 EXPLODED VIEWS AND PARTS LIST (VSX-45TX : 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 145: 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. 10 11 VSX-45TX AUDIO/VIDEO MULTI-CHANNEL RECEIVER STANDBY/ON STANDBY MULTI CHANNNEL...
  • Page 146 17 MULTI ROOM & SOURCE buttons Press to switch on/off and select the type of acoustic Press to use the multi room feature (requires an optional calibration EQ. PIONEER Multi-Room Remote Sensor Unit MR-100 or another IR receiver). 11 MASTER VOLUME dial CONTROL button Use to raise or lower the volume of the receiver.
  • Page 147 OFF – Lights when the SB CH MODE or VIRTUAL broadcasts and when MPX mode is selected. SURROUND BACK mode is set to OFF. TUNED: Lights when a broadcast is received. 8 Volume level indicator 9 MULTI ROOM indicator Lights when the MULTI ROOM system is on. VSX-45TX...
  • Page 148: Rear Panel

    Use these terminals to output the video signal from the 3 CONTROL IN/OUT terminal COMPONENT VIDEO IN terminals to your TV. See #17 You can use this jack to hook up other PIONEER for more information. equipment, that has a CONTROL terminal, so that you...
  • Page 149 Use this terminal to connect a PC to this receiver. 14 Audio input/output terminals (connect analog components here) Use these terminals to input/output the audio signal from analog components (like a cassette deck or turntable). These are analog jacks. VSX-45TX...
  • Page 150: Remote Control Unit

    Switches between the different channels so you can add volume individually to each channel with the + and – – DTV MENU CLASS STATION STATION buttons. Also selects EFFECT mode of Pioneer original ¢ sound modes and Dolby Pro Logic II music parameter – CHANNEL CHANNEL settings.
  • Page 151 = SYSTEM OFF button This button turns off components in two ways. First, when pressed it will turn off all PIONEER components. Secondly, any component that has programmed into the SYSTEM OFF settings will be turned off. For example: If you programmed power off in the...
  • Page 152 GUIDE SYSTEM SETUP ENTER AUDIO RETURN TUNE − CHANNEL DTV ON/OFF BAND CHANNEL D.ACCESS CLASS DIMMER LOUDNESS TONE EFFECT/CH SEL ENTER SIGNAL SEL BASS/TREBLE DISC + − VIDEO SEL HI-BIT TV CONTROL SUB TITLE REMOTE CHANNEL VOLUME SETUP RECEIVER VSX-45TX...

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