Pioneer VSX-49TXi Service Manual
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Pioneer VSX-49TXi Service Manual

Audio/video multi-channel receiver
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AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-49TXi
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type
VSX-49TXI
KU/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
OFF
ON
INPUT SELECTOR
Power Requirement
AC120V
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
AUDIO/VIDEO MULTI-CHANNEL AMPLIFIER
VSX-49TXi
LISTENING MODE SELECTOR
MAC3
STANDBY
VIDEO
AUDIO
CD-R/
MULTI CH
DVD/LD
TV/DVD
SAT
VIDEO
VCR
VCR2
VCR3
CD
TAPE1/MD
TUNER
PHONO
INPUT
MASTER VOLUME
DOWN
UP
VSX-49TXi
ORDER NO.
RRV2644
Remarks
T-ZZR AUG. 2002 printed in Japan

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  • 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 PIONEER CORPORATION 2002 T-ZZR AUG.

  • 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 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-49TXi...

  • Page 4: Table Of Contents

    4.18 POWER AMP(C), POWER AMP(BR) and POWER AMP(G) ASSYS..........121 4.19 LOCAL SUPPLY and DSP DIODE ASSYS..................122 4.20 AC PRIMARY, POWER SW and SP(A) ASSYS................... 124 4.21 TRANS(A), TRANS(B), DIODE and FUSE ASSYS ................126 4.22 SP(B) ASSY ............................127 4.23 1394 MODULE ASSY .......................... 128 VSX-49TXi...

  • Page 5: Vsx-49Txi

    7.1.1 Teat mode............................144 7.1.2 Disassembly .............................148 7.2 PARTS ..............................152 7.2.1 IC..............................152 7.2.2 DISPLAY ............................160 7.3 REMOTE CONTROL UNIT........................162 7.3.1 EXPLODED VIEWS and PARTS LIST .....................162 7.3.2 Remote SCH ............................164 7.3.3 Remote PCB Diagram........................166 7.3.4 Remote PARTS List..........................168 8. PANEL FACILITIES ............................169 VSX-49TXi...

  • Page 6: Specifications

    Do not use furniture wax or cleaners. • Never use thinners, benzine, insecticide sprays or other chemicals on or near this unit, since these will corrode the surfaces. VSX-49TXi...
  • Page 7 FUNCTION CD-R/ DVD/LD TAPE1 VCR1 TUNER – /DVR VIDEO VCR2 – VCR3 FUNCTION CONTROL MASTER VOLUME MULTI SYSTEM STANDBY/ON OPERATION MUTING ENTER – AC power cord Touch pen Cushion for Remote x4 Remote control unit (AXD7295) (ADG7061) (AZA7350) (AEB7167) VSX-49TXi...

  • Page 8: Exploded Views And Parts List

    For the applying amount of lubricants or glue, follow the instructions in this manual. (In the case of no amount instructions, apply as you think it appropriate.) 2.1 PACKING 11 (2/2) Refer to " 7.3 Remote control unit Section." 12 (2/2) VSX-49TXi 12(1/2) 11(1/2) VSX-49TXi...
  • Page 9 Caution Sheet SP, E ARM7056 NSP 9 Warranty Card EL ARY1026 Cushion for Remote AEB7167 Top Pad AHA7362 Bottom Pad AHA7363 Spacer AHB7057 Packing Case AHD8122 Packing Sheet DHL1022 NSP 16 Polyethylene Bag Z21-038 (0.03 x 230 x 340) Microphone APM7003 VSX-49TXi...

  • Page 10: Exterior Section

    2.2 EXTERIOR SECTION Refer to "2.3 CHASSIS SECTION." Refer to "2.6 FRONT PANEL SECTION." Refer to "2.5 HEAT SINK SECTION." VSX-49TXi...
  • Page 11 License Label ARW7194 Screw BBZ30P080FCC 65 Label ARW7050 Screw BBT30P100FCC NSP 26 ICP Caution Label ARW7151 NSP 27 Fuse Caution Label ARW7175 NSP 28 ICP Caution Label ARW7150 Binder ZCA-BK1 1394Module AXQ7243 Nylon Rivet AEC-525 Side Panel Sheet B AMR7414 VSX-49TXi...

  • Page 12: Chassis Section

    2.3 CHASSIS SECTION Refer to "2.4 REAR PANEL SECTION". 46 30 26 45 VSX-49TXi...
  • Page 13 Shield Case A ANK7093 NSP 40 Side Frame R ANA7135 NSP 41 Tape PNM1249 NSP 42 Shield Case B ANK7107 Screw ABA1011 NSP 44 PCB Holder C ANG7389 Screw BBZ30P080FCC Screw IBP30P090FCC Screw VBA1056 Screw ABA1054 Screw ABA1082 Screw ABA7076 VSX-49TXi...

  • Page 14: Rear Panel Section

    2.4 REAR PANEL SECTION VSX-49TXi...
  • Page 15 J5002 14P Connector Assy ADX7381 (VR OUT CN5006 - Power AMP(L) CN4801 and Power AMP(R) CN4802) Binder ZCA-BK1 1394 Module AXQ7243 Fiber washer RBF1045 Tape AEH7015 Screw BCZ30P060FCC Shield plate AMR7445 Acetate tape AEH7018 Shield cushion AEB7274 Acetate tape ZTA-156A-19 VSX-49TXi...

  • Page 16: Heat Sink Section

    2.5 HEAT SINK SECTION VSX-49TXi...
  • Page 17 Mica Sheet M AEE7046 NSP 12 PCB Holder A ANG7387 NSP 13 Heat Sink Holder ANG7375 Screw ABA1011 Screw IBP30P090FCC Screw BMZ30P060FCU Screw RBA1099 Screw ABA7076 Screw ABA7083 Over head Terminal wire(RED) ADX7383 Over head Terminal wire(BLUE) ADX7384 Washer WA32F100M050 VSX-49TXi...

  • Page 18: Front Panel Section

    2.6 FRONT PANEL SECTION VSX-49TXi...
  • Page 19 NSP 57 Earth Metal Fitting DE012VF0 J32 8P Connector Assy ADX7390 Front Panel ANB7301 (Front A/V CN3204-MIC AMP CN3206) Pioneer Badge B PAN1376 Rotary Knob L BK AAA7018 J99 4P Connector Assy ADX7421 Plate ANG7198 (MIC & OPT CN3202-MIC AMP CN3205)

  • Page 20: Block Diagram And Schematic Diagram

    DIR & DIT IC3441 AK5383VS DSP 1 & 2 IC3601-2/2 C/SW IC3602-2/2 DSP U-COM D/A Converter SBLOUT CN707 RF Demodulator ADCWDT AC DATA IC3401 TC9163AF A/D Mode Selector IC3481 AK5383VS IC3801-2/2 Back IC3802-2/2 D/A Converter (SB) ADSBDT AB DATA DSP ASSY VSX-49TXi...
  • Page 21 : Audio Signal Route (MR) (REC) : Audio Signal Route (C) : Audio Signal Route (REC) : Audio Signal Route (S) Same as the above circuit. (SB) (SB) : Audio Signal Route (SB) (SBL) : Audio Signal Route (SBL) DAC 10 ASSY VSX-49TXi...
  • Page 22 Selector (CY) +6dB AMP (Cb) 75Ω (Cb) (CY) IC2104 CVOUT (Cb) PDC084A CVIN COMPONENT Q2108 75Ω IC2107 (Cr) (Cr) TC74HC4051AFT (Cr) Video MR Function IC2502 IC2106-1/2 Selector (COMPOSITE) TC74LVX4052FT COMPOSITE ASSY OPA2652U Video Function +6dB AMP Selector (Cb, Cr) VSX-49TXi...

  • Page 23: Display Assy

    TK15420M 0dB Buffer (OSD) (OSD) (CY) IC2859-3/3 TC74LVX4053FT IC2858-2/2 TK15420M 0dB Buffer IC2857-2/2 IC2853 TK15420M (Cb) TA1270BF V-CONVERT Chroma Decoder (CY) ASSY IC2858-1/2 (Cb) TK15420M 0dB Buffer 0dB Buffer (Cr) (Cr) IC2857-1/2 TK15420M (CY) (CY) (Cb) (Cb) (Cr) (Cr) VSX-49TXi...
  • Page 24 (11P) CN4811 CN5005 NJM78M15FA V+16 (8P) (8P) V-20 CN5003 CN5819 POWER REG. A+20 (24P) (24P) AMP (C) REG. ASSY V-16 IC5003 CN4804 CN4810 NJM79M15FA (9P) (9P) POWER AMP POWER AMP VR & PRE OUT (R) ASSY (BR) ASSY ASSY VSX-49TXi...
  • Page 25 V+20 V+5Z A-20V V-20 V-5Z V-CONVERT A-20V ASSY CN5816 CN3403 (30P) (30P) VC15I VC15I VC15 ANALOG IN & A/D VE15I VE15 ASSY VC5A VC5A VC5AA VC5F V+5D VE15I L3401 L3421 VC5D VC5D VC3A VC3F L3402 L3422 REG. IC3402 PQ3DZ13 VSX-49TXi...
  • Page 26 SACD_D0-D5 10-13 AYW7022 IC203 19,20 BU2370FV Flash ROM VCO (PLL) MCLK IC306 IC101 PE9014A PD5787A PROM RS232C 63-68 HOST CPU CN103 (7P) IC302 K4S641632F-TC75 IC401 64M SDRAM SM5816AF DSD Converter (SACD → LPCM) CLKC XTAL IC405 CY22381FC 512fs PLL VSX-49TXi...
  • Page 27 (SB) CN401 (22P) 1394_SPDIF IC405 TC74VHC257FT Multiplexer (SB) (SB) IE_BDT IE_CDT IE_SDT IE_FDT IC405 TC74VHC257FT Multiplexer IE_MCK : Audio Signal Route (F) : Audio Signal Route (C) : Audio Signal Route (S) (SB) : Audio Signal Route (SB) VSX-49TXi...

  • Page 28: Overall Wiring Diagram

    MIC AMP ASSY DSP DIODE ASSY (AWX7872) VOL ASSY (AWX7958) (AWX7870) POWER AMP (R) ASSY (AWX7883) POWER AMP (C) ASSY (AWX7884) POSISTER (R) ASSY (AWX7846) POWER AMP (G) ASSY (AWX7886) POWER AMP (BR) ASSY (AWX7885) VIDEO CONNECT ASSY (AWX7876) VSX-49TXi...
  • Page 29 TRANS (A) ASSY (AWX7838) POWER SW ASSY (AWX7840) POWER AMP (L) ASSY (AWX7882) AC PRIMARY ASSY (AWX7834) HEADPHONE ASSY (AWX7874) SP (B) ASSY SP (A) ASSY (AWX8151) (AWX8148) AC INLET ASSY FU1 : AEK-306 : ADX7395 (12A/125V) MOTHER ASSY (AWX8142) VSX-49TXi...

  • Page 30: Fm/Am Tuner Module

    3.3 FM/AM TUNER MODULE FM/AM TUNER MODULE (AXQ7237) (AM) (FM) (FM) (FM) (FM) (FM) (FM) (FM) (AM) (AM) (FM) (AM) VSX-49TXi...
  • Page 31 (TX) : AUDIO SIGNAL ROUTE (TUNER) (AM) : AM SIGNAL ROUTE (FM) : FM SIGNAL ROUTE CN2705 (AM) (AM) (TX) (TX) CN5802 (TX) (TX) (FM) (TX) : The power supply is shown with the marked box. VSX-49TXi...

  • Page 32: A/V I/O Assy

    3.4 A/V I/O ASSY (MR) MR MUET ON : +4.3V (MR) OFF : -20V (MR) Volume (DVD) (DVD) (MIC) (MIC) (FV) (DVD) (DVD) (DVD) (REC) A/V Function Selector (REC) (REC) VSX-49TXi...
  • Page 33 Selector (DVD) : AUDIO SIGNAL ROUTE (DVD) (REC) : AUDIO SIGNAL ROUTE (REC) CN5820 (MR) : AUDIO SIGNAL ROUTE (MR) (MIC) : AUDIO SIGNAL ROUTE (MIC) : AUDIO SIGNAL ROUTE (F) (FV) : AUDIO SIGNAL ROUTE (FV) (REC) (REC) VSX-49TXi...

  • Page 34: Composite Assy

    3.5 COMPOSITE ASSY COMPOSITE ASSY (AWX7942) (DVD) (DVD) Video Function Selector (Composite) I/O Selector (Composite) Video MR Function Selector (Composite) Clamp REC OUT Selector (Composite) VSX-49TXi...
  • Page 35 (DVD) : VIDEO SIGNAL ROUTE (DVD) : VIDEO SIGNAL ROUTE (OSD) : VIDEO SIGNAL ROUTE (OSD) 6dB AMP. Input-Selector (OSD) (OSD) Port Expander (OSD) Port Expander : The power supply is shown with the marked box. CN5822 VSX-49TXi...

  • Page 36: S-Video Assy

    3.6 S-VIDEO ASSY Video Video Function Function Selector Selector Port Expander Sync. Sep. REC OUT REC OUT Selector (C) Selector (Y) VSX-49TXi...
  • Page 37 : Y SIGNAL ROUTE : C SIGNAL ROUTE (OSD) (OSD) : VIDEO SIGNAL ROUTE (OSD) S-VIDEO ASSY (AWX8159) S/OSD SW 6dB AMP. S/OSD SW DC SW (OSD) CN3302 CN5823 : The power supply is shown with the marked box. VSX-49TXi...

  • Page 38: V-Convert Assy

    3.7 V-CONVERT ASSY MN1093NF Y/C Sep. Clock Gen. (CY) 0dB Buffer (Cb) (OSD) (Cr) (CY) (Cr) CHROMA Decoder (Cb) (CY) (Cb) 0dB Buffer VSX-49TXi...
  • Page 39 (Cr) (CY) (Cr) : Y SIGNAL ROUTE (COMPONENT) (Cb) : Cb SIGNAL ROUTE (COMPONENT) 0dB Buffer (Cr) : Cr SIGNAL ROUTE (COMPONENT) (OSD) : VIDEO SIGNAL ROUTE (OSD) : The power supply is shown with the marked box. CN5825 VSX-49TXi...

  • Page 40: Component Assy

    3.8 COMPONENT ASSY (CY) (CY) (CY) (CY) (Cb) (Cb) (Cr) Video Function Selector (CY) (CY) (Cr) (Cb) (Cb) (Cr) (Cr) (Cr) (Cb) Video Function Selector (Cb, Cr) Port Expander CN5824 : The power supply is shown with the marked box. VSX-49TXi...
  • Page 41 (CY) : VIDEO SIGNAL ROUTE : Y SIGNAL ROUTE (COMPONENT) (Cb) : Cb SIGNAL ROUTE (COMPONENT) : VIDEO SIGNAL ROUTE (Y) (Cr) : VIDEO SIGNAL ROUTE (C) : Cr SIGNAL ROUTE (COMPONENT) CN3303 (OSD) : VIDEO SIGNAL ROUTE (OSD) VSX-49TXi...

  • Page 42: Video Con., Mic Amp, Mic, Front A/V And H

    CN1206 PHONES (FV) : AUDIO SIGNAL ROUTE (FV) MIC & OPT ASSY (AWX7875) DIGITAL CN5804 (MIC) SETUP MIC AMP (MIC) (MIC) (MIC) (MIC) (FV) (FV) (FV) (FV) (FV) (FV) (FV) FRONT A/V ASSY (AWX8189) GNDS H I J K VSX-49TXi...
  • Page 43 VIDEO CONNECT ASSY (AWX7876) CN2852 MIC AMP ASSY (AWX7872) (MIC) (MIC) (MIC) (MIC) (FV) (FV) CN5806 (FV) VSX-49TXi...

  • Page 44: Analog In & A/D Assy(1/3)

    3.10 ANALOG IN & A/D ASSY(1/3) ANALOG IN & A/D ASSY (AWX7878) (PH) (PH) (PH) (TX) (TX) (TX) (CD) (PH) (CD) (CD) (CD) (TX) (TX) (TX) (TX) (REC) (REC) (REC) Audio Function Selector VSX-49TXi...
  • Page 45 : AUDIO SIGNAL ROUTE (PHONE) (SB) (CD) : AUDIO SIGNAL ROUTE (SBL) : AUDIO SIGNAL ROUTE (CD) (TX) (MR) : AUDIO SIGNAL ROUTE (MR) : AUDIO SIGNAL ROUTE (TUNER) (FL) (REC) : AUDIO SIGNAL ROUTE (FL) : AUDIO SIGNAL ROUTE (REC) VSX-49TXi...

  • Page 46: Anaalog In & A/D Assy(2/3)

    3.11 ANAALOG IN & A/D ASSY(2/3) ANALOG IN & A/D ASSY (AWX7878) INPUT ON : +15V OFF : -15V : The power supply is shown with the marked box. VSX-49TXi...
  • Page 47 +3.3V Front A/D Converter (SB) (SB) C/SW A/D Converter : AUDIO SIGNAL ROUTE (F) : AUDIO SIGNAL ROUTE (SL) (SB) : AUDIO SIGNAL ROUTE (C) : AUDIO SIGNAL ROUTE (SBL) VSX-49TXi...

  • Page 48: Anaalog In & A/D Assy(3/3)

    3.12 ANAALOG IN & A/D ASSY(3/3) INPUT ON : +15V OFF : -15V (SB) (SB) (SB) (SB) (SB) (SB) (SB) VSX-49TXi...
  • Page 49 ANALOG IN & A/D ASSY (AWX7878) : AUDIO SIGNAL ROUTE (SL) (SB) : AUDIO SIGNAL ROUTE (SBL) Surround A/D Converter (SB) (SB) (SB) (SB) Surround Back A/D Converter (SB) (SB) VSX-49TXi...

  • Page 50: Display, Input Sel, Multi Jog And Vol Assys

    S3090 : TAPE2 MONITOR S3091 : VIDEO SELECT S3092 : DIGITAL NR S3093 : CLASS S3094 : - STATION TUNER S3095 : + S3096 : LISTENING CH SELECT S3097 : CONTROL MULTI ROOM S3098 : ON/OFF & SOURCE CN1903 CN5807 VSX-49TXi...
  • Page 51 DISPLAY ASSY (AWX8140) FL DISPLAY MULTI JOG ASSY (AWX7869) VOL ASSY (AWX7870) REMOTE RECEIVER UNIT Remote Signal Control INPUT SEL ASSY (AWX7868) M N O P VSX-49TXi...

  • Page 52: Vr & Pre Out Assy(1/3)

    3.14 VR & PRE OUT ASSY(1/3) VR & PRE OUT ASSY (AWX7888) (SB) (SB) (SB) Analog Phantom (SB) (SB) (SB) (SB) (SB) VSX-49TXi...
  • Page 53 : The power supply is shown with the marked box. J4004 CN4811 (SB) (SB) Mode Selector CN5819 2/3, 3/3 : AUDIO SIGNAL ROUTE (F) (SB) : AUDIO SIGNAL ROUTE (C) : AUDIO SIGNAL ROUTE (S) (SB) : AUDIO SIGNAL ROUTE (SB) VSX-49TXi...

  • Page 54: Vr & Pre Out Assy(2/3)

    3.15 VR & PRE OUT ASSY(2/3) VR & PRE OUT ASSY (AWX7888) Pre-Amp. Front Main Volume C/SW Main Volume VSX-49TXi...
  • Page 55 : AUDIO SIGNAL ROUTE (F) : AUDIO SIGNAL ROUTE (C) AMUTE2 ON : +3.4V OFF : -20V VSX-49TXi...

  • Page 56: Vr & Pre Out Assy(3/3)

    3.16 VR & PRE OUT ASSY(3/3) Pre-Amp. Surround Main Volume (SB) (SB) (SB) (SB) (SB) (SB) Surround Back Main Volume VSX-49TXi...
  • Page 57 : AUDIO SIGNAL ROUTE (C) : AUDIO SIGNAL ROUTE (S) (SB) VR & PRE OUT ASSY (AWX7888) : AUDIO SIGNAL ROUTE (SB) AMUTE2 ON : +3.4V OFF : -20V (SB) (SB) (SB) Surround Back Selector (SB) (SB) (SB) (SB) (SB) (SB) VSX-49TXi...

  • Page 58: Mother Assy

    : AUDIO SIGNAL ROUTE (F) (FV) : AUDIO SIGNAL ROUTE (FV) : AUDIO SIGNAL ROUTE (C) : AUDIO SIGNAL ROUTE (S) (SB) : AUDIO SIGNAL ROUTE (SB) (TX) : AUDIO SIGNAL ROUTE (TUNER) MOTHER ASSY (AWX8142) (TX) (TX) Reset CN3201 CN3207 CN3001 VSX-49TXi...
  • Page 59 (MR) (SB) (SB) (FV) (REC) (SB) CN2101 (MR) (MIC) (TX) (SB) (SB) CN2002 (SB) Mute Control (SB) 3V → 5V Converter (SB) Buffer : The power supply is shown with the marked box. VSX-49TXi...

  • Page 60: Dsp Assy(1/5)

    3.18 DSP ASSY(1/5) CN4005 CN5809 DSP ASSY (AWK7762) 3.3V Port Expander Port Expander (SB) CN5810 CN5811 VSX-49TXi...
  • Page 61 (SB) Flash ROM : AUDIO SIGNAL ROUTE (DIGITAL) : AUDIO SIGNAL ROUTE (F) : AUDIO SIGNAL ROUTE (C) : AUDIO SIGNAL ROUTE (S) (SB) : AUDIO SIGNAL ROUTE (SB) : The power supply is shown with the marked box. VSX-49TXi...

  • Page 62: Dsp Assy(2/5)

    3.19 DSP ASSY(2/5) VSX-49TXi...
  • Page 63 DSP ASSY (AWK7762) : AUDIO SIGNAL ROUTE (DIGITAL) RF Demodulator SRAM VSX-49TXi...

  • Page 64: Dsp Assy(3/5)

    3.20 DSP ASSY(3/5) DSP ASSY (AWK7762) Selector VSX-49TXi...
  • Page 65 : AUDIO SIGNAL ROUTE (C) : AUDIO SIGNAL ROUTE (DIGITAL) : AUDIO SIGNAL ROUTE (S) (SB) : AUDIO SIGNAL ROUTE (F) : AUDIO SIGNAL ROUTE (SB) Counter Selector Selector (SB) (SB) (SB) Selector Selector (SB) VSX-49TXi...

  • Page 66: Dsp Assy(4/5)

    3.21 DSP ASSY(4/5) DSP ASSY (AWK7762) (SB) (SB) VSX-49TXi...
  • Page 67 (SB) (SB) : AUDIO SIGNAL ROUTE (F) : AUDIO SIGNAL ROUTE (C) : AUDIO SIGNAL ROUTE (S) (SB) : AUDIO SIGNAL ROUTE (SB) : The power supply is shown with the marked box. VSX-49TXi...

  • Page 68: Dsp Assy(5/5)

    3.22 DSP ASSY(5/5) (SB) (SB) (SB) (SB) (SB) (SB) Selector (SB) Selector (SB) (SB) (SB) VSX-49TXi...
  • Page 69 DSP ASSY (AWK7762) SRAM SRAM 3.3V (SB) 1.8V DSP2 (SB) : AUDIO SIGNAL ROUTE (F) : AUDIO SIGNAL ROUTE (C) : AUDIO SIGNAL ROUTE (S) (SB) : AUDIO SIGNAL ROUTE (SB) VSX-49TXi...

  • Page 70: Dsp3 Assy

    3.23 DSP3 ASSY DSP3 ASSY (AWK7727) 3.3V (SB) (SB) (SB) (SB) CN708 CN709 VSX-49TXi...
  • Page 71 : AUDIO SIGNAL ROUTE (F) : AUDIO SIGNAL ROUTE (C) : AUDIO SIGNAL ROUTE (S) (SB) : AUDIO SIGNAL ROUTE (SB) (SB) (SB) : The power supply is shown with the marked box. VSX-49TXi...

  • Page 72: Dac10 Assy(1/2)

    3.24 DAC10 ASSY(1/2) 3.3V DAC 10 ASSY (AWK7725) D/A Converter D/A Converter Front Digital Filter D/A Converter (SB) D/A Converter C/SW Digital Filter (SB) VSX-49TXi...
  • Page 73 : AUDIO SIGNAL ROUTE (F) : AUDIO SIGNAL ROUTE (C) : AUDIO SIGNAL ROUTE (S) : The power supply is shown with the marked box. (SB) : AUDIO SIGNAL ROUTE (SB) Gain Control Volume (SB) (SB) VSX-49TXi...

  • Page 74: Dac10 Assy(2/2)

    3.25 DAC10 ASSY(2/2) D/A Converter D/A Converter Surround Digital Filter D/A Converter (SB) (SB) (SB) (SB) D/A Converter Surround Back Digital Filter (SB) VSX-49TXi...
  • Page 75 DAC 10 ASSY (AWK7725) : AUDIO SIGNAL ROUTE (S) (SB) : AUDIO SIGNAL ROUTE (SB) Gain Control Volume (SB) (SB) (SB) (SB) (SB) (SB) (SB) VSX-49TXi...

  • Page 76: Power Amp(L) And Power Amp(C) Assys

    3.26 POWER AMP(L) and POWER AMP(C) ASSYS POWER AMP (L) ASSY (AWX7882) Voltage Amp. AMUTE1 ON : +4.2V OFF : -20V Voltage Amp. (SB) Voltage Amp. (SB) (SB) (SB) (SB) POWER AMP (C) ASSY (AWX7884) CN4806 VSX-49TXi...
  • Page 77 : AUDIO SIGNAL ROUTE (SB) Load Current Amp. Det. Current Amp. Over Load Det. Current Amp. DC Det. Current Amp. To C1 To C2 Over Load Det. (SB) (SB) (SB) Current Amp. (SB) (SB) (SB) Current Amp. Over Load Det. Current Amp. VSX-49TXi...

  • Page 78: Power Amp(R), Power Amp(Br) And Power Amp(G) Assys

    3.27 POWER AMP(R), POWER AMP(BR) and POWER AMP(G) ASSYS POWER AMP (R) ASSY (AWX7883) Voltage Amp. AMUTE1 ON : +4.2V OFF : -20V Voltage Amp. Voltage Amp. CN5005 J1201 POWER AMP (G) ASSY (AWX7886) POWER AMP (BR) ASSY X Y Z (AWX7885) VSX-49TXi...
  • Page 79 : AUDIO SIGNAL ROUTE (C) Over Load Current Amp. Det. Current Amp. Over Load Det. DC Det. Current Amp. Current Amp. To C1 To C2 Over Load Det. Current Amp. Current Amp. Over Load Det. Current Amp. J1902 VSX-49TXi...

  • Page 80: Local Supply Assy

    3.28 LOCAL SUPPLY ASSY LOCAL SUPPLY ASSY (AWX7887) 10.6V 11.7V -12.1V 11.7V -12.2V 26.6V -26.7V 63.4V -63.4V VSX-49TXi...
  • Page 81 REPLACE ONLY WITH SAME TYPE NO. 491001 FOR IC4036 J5806 MFD, BY LITTELFUSE INC. CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 4911.25 FOR IC4035 MFD, BY LITTELFUSE INC. CN5805 -20V CN5004 -56V VSX-49TXi...

  • Page 82: Ac Primary, Power Sw, Sp(A), Fl Supply And Standby Assys

    3.29 AC PRIMARY, POWER SW, SP(A), FL SUPPLY and STANDBY ASSYS CN5801 POWER SW ASSY (AWX7840) AC PRIMARY ASSY (AWX7834) 60Hz Port Expander CN1001 CN1005 J3301 CN1803 +46.6V FL SUPPLY ASSY (AWX7871) AB AC AE VSX-49TXi...
  • Page 83 : AUDIO SIGNAL ROUTE J4801 J4802 : AUDIO SIGNAL ROUTE (F) : AUDIO SIGNAL ROUTE (C) : AUDIO SIGNAL ROUTE (S) (SB) : AUDIO SIGNAL ROUTE (SB) SP (A) ASSY (AWX8148) Speaker Relay (SB) (SB) J4804 CN3002 STANDBY ASSY (AWX7901) VSX-49TXi...
  • Page 84 (AWX7958) AEK-306 (12A/125V) J4002 POSISTER (L) ASSY (AWX7844) CN4812 POSISTER (R) ASSY (AWX7846) CN4813 • NOTE FOR FUSE REPLACEMENT FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. CAUTION - REPLACE WITH SAME TYPE AND RATINGS ONLY. AG AH AI AJ VSX-49TXi...
  • Page 85 FU6 2A Speaker Relay FU7 2A FU8 2A FU5-FU8 : VEK1019 TRANS (B) ASSY DIODE ASSY (AWX8057) TRANS (A) (AWX7841) ASSY POWER FU10 1A/125V TRANSFORMER (AWX7838) : VEK1014 (ATS7320) To C1 FU9 1A/125V : VEK1014 To C2 5.9V AC VSX-49TXi...

  • Page 86: 1394 Module(1/2) Assy

    3.31 1394 MODULE(1/2) ASSY VSX-49TXi...
  • Page 87 1394 MODULE (AXQ7243) POWER SUPPLY, GND : The power supply is shown with the marked box. VSX-49TXi...

  • Page 88: 1394 Module(2/2) Assy

    3.32 1394 MODULE(2/2) ASSY 1394 MODULE (AXQ7243) (SB) (SB) (SB) (SB) VSX-49TXi...
  • Page 89 : The power supply is shown with the marked box. (SB) (SB) (SB) (SB) (SB) : AUDIO SIGNAL ROUTE (F) : AUDIO SIGNAL ROUTE (C) : AUDIO SIGNAL ROUTE (S) (SB) : AUDIO SIGNAL ROUTE (SB) VSX-49TXi...

  • Page 90: 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 P.C.Board Chip Part transistor Resistor array 3-terminal regulator VSX-49TXi...

  • Page 91: Fm/Am Tuner Module

    4.1 FM/AM TUNER MODULE SIDE A SIDE B FM/AM TUNER MODULE SIDE A CN201 CN5802 (ANP7338-B) Q202 FM/AM TUNER MODULE SIDE B CN201 (ANP7338-B) Q201 IC201 Q203 Q205 IC202 Q204 VSX-49TXi...

  • Page 92: A/V I/O Assy

    C2079 R2077 TC916xSTB1 TC916xCLK TC916xDT M62429CLK C2053 C2054 R2099 M62429DT R2055 R2056 MR MUTE R2098 SR OUT R2097 SR IN R2096 C2052 Production code R2051 R2052 R2053 C2080 C2076 HCMK-P3X IC2051 IC2052 (ANP7389-D) SIDE B IC2053 IC2002 IC2001 (ANP7389-D) VSX-49TXi...

  • Page 93: Composite Assy

    R2170 R2179 Q2103 CN2102 R2171 HCMK-P3X R2173 R2172 C2114 CN2102 CN3301 Q2104 IC2104 Q2105 Q2103 IC2107 IC2101 Q2106 IC2102 IC2105 IC2108 IC2109 Q2108 Q2102 IC2103 Q2101 (ANP7389-D) SIDE B CN2102 I C 2 1 0 6 (ANP7389-D) IC2106 Q2107 VSX-49TXi...

  • Page 94: S-Video Assy

    C2301 C2302 C2303 JA2301 CN2302 CN2303 CN2304 CN2305 IC2307 IC2304 IC2302 IC2306 IC2310 IC2305 Q2301 IC2303 IC2301 Q2314 (ANP7389-D) SIDE B I C 2 3 0 9 I C 2 3 0 8 CN2306 Q2302 Q2303 IC2309 (ANP7389-D) IC2308 VSX-49TXi...

  • Page 95: V-Convert Assy

    IC2860 Q2904 Q2853 IC2852 Q2854 Q2852 IC2853 IC2857 IC2858 IC2856 IC2859 Q2903 IC2851 Q2851 IC2861 IC2853 IC2854 IC2855 IC2862 (ANP7389-D) SIDE B Q 2 9 0 5 Q 2 8 5 7 CN2852 (ANP7389-D) Q2902 Q2855 Q2857 Q2901 Q2980 VSX-49TXi...

  • Page 96: Component Assy

    IC2509 R2515 IC2506 R2558 IC2502 R2536 IC2501 C2575 R2587 R2588 C2527 R2553 R2572 C2581 CN2505 R2589 R2590 Q2508 Q2509 IC2505 IC2501 IC2504 IC2507 IC2508 IC2506 IC2503 IC2502 Q2506 Q2507 IC2509 Q2504 Q2505 (ANP7389-D) SIDE B CN2502 Q2502 Q2501 (ANP7389-D) VSX-49TXi...

  • Page 97: Video Connect Assy

    SIDE B UP SIDE -5.6V MR IN MR IN +5.6V -5.6V -5.6V -5.6V Cy OUT +5.6V +5.6V +5.6V Cb OUT Cy OUT Cr OUT Cb OUT V OUT Cr OUT V OUT V IN AWX7876 AWX7877 V IN (ANP7390-D) VSX-49TXi...

  • Page 98: Mic Amp, Mic, Front A/V And Headphone Assys

    R3217 CN3206 D3201 C3220 R3210 Q3204 R3224 C3229 C3212 C3215 C3211 R3220 C3238 R3212 R3211 R3221 KN3202 CN5806 C3230 C3214 R3214 C3213 C3227 AWX7872 C3221 IC3201 Q3202 Q3204 (ANP7390-D) MIC & OPT ASSY CN5804 (ANP7390-D) H I J K VSX-49TXi...

  • Page 99: Headphone Assy

    MIC & OPT ASSY SHIELD MIC_G MIC ON R 3 2 4 0 XJIN DSP+5V MIC ON L 3 2 0 2 GNDP OPT5 IN C 3 2 0 2 C 3 2 5 1 R 3 2 0 1 (ANP7390-D) VSX-49TXi...

  • Page 100: Analog In & A/D Assy

    D3501 D3503 D3504 IC3402 C3821 C3822 C3721 C3722 C3621 C3622 C3521 C3522 C3819 C3401 C3719 C3619 C3519 IC3481 C3813 C3820 C3720 C3620 C3520 IC3441 C3713 C3613 C3513 C3814 C3714 C3614 C3514 IC3461 IC3421 C3484 C3464 C3444 C3424 IC3402 (ANP7390-D) VSX-49TXi...
  • Page 101 SIDE B ANALOG IN & A/D ASSY IC3901 C 3 9 5 5 R 3 6 1 3 (ANP7390-D) VSX-49TXi...

  • Page 102: Display, Input Sel, Multi Jog, Fl Sup. And Standby Assys

    R3085 R3092 Q3052 Q3053 Q3054 Q3051 Q5001 IC3062 INPUT IC3002 SEL ASSY 3104 FL SUPPLY ASSY R3110 C3111 R3109 YG-A3 C3110 CN1901 CN1901 CN1803 (ANP7390-D) (ANP7388-D) FL VH FL G STANDBY ASSY CN1902 S1901 CN1903 STANDBY (ANP7388-D) AE AF VSX-49TXi...
  • Page 103 R3096 R3097 R3100 MR&S CONTROL CN5807 R3098 CLASS STATION - STATION + MR&S ON/OFF S3093 (ANP7390-D) Q3002 IC3061 Q3003 Q3063 Q3061 Q3062 MULTI JOG ASSY AWX7869 MULTI JOG Ass'y (ANP7390-D) VOL ASSY VOL. Ass'y AWX7870 (ANP7390-D) M O P VSX-49TXi...

  • Page 104: Display Assy

    232C DET LISTEN MR&S ON/OFF ch.SEL MR&S CONTROL CLASS STATION - STATION + MULTI ch INPU IC3001 MULTI JOG ASSY PUSH FUNCR FUNCL uCOM G uCOM+5V (ANP7390-D) VOL ASSY VOL + VOL - uCOM G uCOM+5V (ANP7390-D) M O P VSX-49TXi...
  • Page 105 (ANP7390-D) HCMK-P3X SIG.SEL. SP SYSTEM A/B MULTI ch INPUT VIDEO SEL. TAPE2 MONI. INPUT SEL ASSY 3104 3104 FL SUPPLY ASSY CN1901 R 1 9 0 2 (ANP7390-D) STANDBY ASSY (ANP7388-D) STANDBY ASSY AWX7901- CN1903 YG-A3 (ANP7388-D) AE AF VSX-49TXi...

  • Page 106: Vr & Pre Out Assy

    R5041 R5022 R5062 R5021 C5001 J5013 J5017 IC5002 C5011 C5012 R5965 IC5003 R5966 R5967 R5968 IC5001 C5002 C5183 C5356 C5156 C5155 C5355 C5184 CN4811 R5155 IC5181 IC5063 IC5023 IC5182 R5008 R5007 R5029 J4004 R5030 C5008 C5007 C5033 C5034 (ANP7392-C) VSX-49TXi...
  • Page 107 SIDE B VR & PRE OUT ASSY R 5 0 0 5 (ANP7392-C) VSX-49TXi...

  • Page 108: Mother Assy

    C5868 J5801 C5844 R5901 R5920 IC5804 L5807 CN5828 C5832 C5837 R5833 R5837 CN5812 IC5803 L5808 CN5813 IC5808 C5859 CN5808 R5841 R5840 C5830 78M15 79M15 IC5809 C5835 IC5813 IC5810 Q5809 IC5802 IC5811 IC5812 IC5803 Q5801 IC5807 Q5810 Q5807 Q5808 IC5804 VSX-49TXi...
  • Page 109 CN4004 VST5 CN5805 C5829 5834 VCC0 VSUB CN5816 J5808 CN5815 CN3402 CN5815 CN5814 CN3401 CN5814 CN702 CN5810 CN703 CN5809 Production Code D.C. (ANP7392-C) F.C. IC5806 Q5802 Q5803 Q5812 Q5814 Q5816 Q5817 Q5818 Q5805 Q5804 Q5811 Q5813 Q5815 Q5806 IC5805 VSX-49TXi...
  • Page 110 J5801 V+5U GNDD VST5 VCC0 VSUB CN5805 CN5805 CN5814 CN5815 CN5816 CN5814 CN5816 CN5815 CN5809 CN5809 HCMK-P3X CN5811 CN5810 0 1 2 3 4 5 6 7 8 9 0 1 2 3 CN5810 Q5814 IC5806 Q5805 IC5807 Q5813 VSX-49TXi...
  • Page 111 FV_Y F_VIDEO A-20V J5801 U+5.6V ST+5.6V CN5828 DISP_CK DISP_RST DISP_RDY DISP_DO DISP_DI DISP_CS CN5812 CN5812 SR IN MR IN SR OUT MIC SW 1W W.UP CN5811 CN5813 232C DET CN5811 IC5808 CN5808 CN5813 IC5809 IC5807 IC5809 IC5801 IC5808 (ANP7392-C) VSX-49TXi...

  • Page 112: Dsp Assy

    CN5809 IC415 IC710 IC709 IC410 IC412 IC707 IC401 IC708 CN5810 IC409 IC711 IC411 IC712 IC701 IC407 IC406 IC402 IC403 IC717,IC714 CN5811 IC404 IC706 IC715 IC413 IC704 IC716 IC705 IC718 IC703 CN707 CN708 CN402 CN706 (ANP7393-A) CN6002 CN6001 CN501 CN502 VSX-49TXi...
  • Page 113 SIDE B DSP ASSY Q208 Q101 Q209 Q102 Q201 IC106 IC104 IC105 Q204 IC205 Q104 Q105 Q203 IC102 Q202 IC103 IC203 IC204 Q213 Q211 Q212 CN708 IC408 IC405 CN706 CN402 CN707 (ANP7393-A) VSX-49TXi...

  • Page 114: Dac10 Assy

    CN6001 CN6002 IC6001 Q6001 IC6402 IC6404 IC6406 CN5812 IC6002 IC6281 IC6403 IC6405 IC6401 IC6302 CN5813 IC6304 IC6306 IC6062 IC6303 IC6305 IC6061 IC6301 IC6202 IC6204 IC6206 IC6041 IC6042 IC6203 IC6205 IC6201 IC6102 IC6104 IC6106 IC6021 IC6022 IC6103 IC6105 IC6101 (ANP7394-A) VSX-49TXi...
  • Page 115 SIDE B DAC10 ASSY CN6001 CN6002 Q6410 Q6409 Q6310 Q6309 Q6210 Q6209 Q6110 Q6109 (ANP7394-A) VSX-49TXi...

  • Page 116: Dsp3 Assy

    4.15 DSP3 ASSY SIDE A SIDE B DSP3 ASSY SIDE A CN402 CN501 CN502 CN708 IC502 IC504 IC501 IC506 IC505 IC503 (ANP7417-B) SIDE B CN501 CN502 IC507 (ANP7417-B) VSX-49TXi...

  • Page 117: Power Amp(L) And Posister(L) Assys

    4.16 POWER AMP(L) and POSISTER(L) ASSYS SIDE A POWER AMP (L) ASSY CN4807 CN4805 IC4302 IC4603 IC4601 CN1203 IC4602 IC4403 IC4401 CN1203 IC4402 POSISTER(L) IC4101 IC4301 ASSY IC4401 IC4601 CN5006 IC4103 IC4101 CN1203 IC4102 CN4809 (ANP7391-B) VSX-49TXi...
  • Page 118 SIDE B SIDE B POWER AMP (L) ASSY CN4805 Q4304 Q4301 Q4602 Q4604 Q4601 Q4402 Q4404 Q4801 POSISTER (L) IC4101 IC4301 IC4401 IC4601 ASSY Q4401 Q4102 Q4104 Q4101 Q4803 Q4805 (ANP7391-B) V AG CN4803 VSX-49TXi...

  • Page 119: Power Amp(R) And Posister(R) Assys

    4.17 POWER AMP(R) and POSISTER(R) ASSYS SIDE A POWER AMP(R) ASSY CN4810 CN4804 IC4203 IC4201 CN1204 IC4202 CN5006 POSISTER(R) ASSY IC4201, IC4501 IC4701 IC4503 IC4501 CN1204 IC4502 IC4703 IC4701 CN1204 IC4702 IC4303 CN4808 (ANP7391-B) VSX-49TXi...
  • Page 120 SIDE B SIDE B POWER AMP(R) ASSY CN4804 Q4806 Q4804 Q4202 Q4204 POSISTER(R) Q4201 ASSY IC4501 IC4201 Q4802 Q4502 Q4504 Q4501 Q4702 Q4704 IC4701 Q4701 CN4806 Q4302 X AH (ANP7391-B) VSX-49TXi...

  • Page 121: Power Amp(C), Power Amp(Br) And Power Amp(G) Assys

    CN4808 CN4808 IC4301 (ANP7391-B) (ANP7391-B) CN4806 CN1203 POWER AMP (BR) ASSY CN4803 CN4809 CN4809 CN5005 (ANP7391-B) CN4810 CN4810 Q4103 Q4403 Q4303 (ANP7391-B) CN4804 POWER AMP (G) ASSY 4807 MAIN CAPACITOR 4808 (ANP7391-B) (ANP7391-B) W Y Z W Y Z VSX-49TXi...

  • Page 122: Local Supply And Dsp Diode Assys

    CN704 Q4021 Q4022 Q4053 G D S IC4023 IC4024 IC4045 J4002 IC4035 CN4001 CN1802 IC4047 IC4046 IC4036 IC4041 IC4043 IC4042 IC4033 IC4031 IC4032 (ANP7391-B) DSP DIODE ASSY CN5805 D1903 YG-A3 CN1904 CN1904 DSP DIODE ASSY (ANP7388-D) AWX7958- AA AI VSX-49TXi...
  • Page 123 SIDE B LOCAL SUPPLY ASSY J4001 J4003 Q4054 CN4001 CN4004 (ANP7391-B) DSP DIODE ASSY (ANP7388-D) AA AI VSX-49TXi...

  • Page 124: Ac Primary, Power Sw And Sp(A) Assys

    C OUT HPSW RY FA RY C RY S RY SB RY HP RY-24V SP(A) ASSY J1204 W142 AWX7848- W104 AWX7849- W143 W155 W105 AWX7850- W156 W106 J1205 C1205 C1204 C1203 C1201 C1202 C1206 C1207 CN1201 CN1202 AB AC AD VSX-49TXi...
  • Page 125 C 1 2 1 5 C 1 2 1 7 C 1 2 1 6 C 1 2 1 2 C 1 2 1 1 Q1201 Q1205 Q1209 Q1208 Q1206 Q1204 Q1202 Q1210 Q1203 Q1207 (ANP7388-D) AB AC AD VSX-49TXi...

  • Page 126: Trans(A), Trans(B), Diode And Fuse Assys

    MAIN CAPACITOR POWER TRANSFORMER TRANS (B) ASSY CN4002 CN1702 FU10 (ANP7388-D) FUSE ASSY CN1801 CN1801 RISK OF FIRE - REPLACE FUSE AS MARKED. (ANP7388-D) FUSE ASSY AWX7843- CN1803 CN1901 CN1802 CN4001 AK AL AM AN AK AL AM AN VSX-49TXi...

  • Page 127: Sp(B) Assy

    FU2 T AL ST LO REPLACE FUSE AS MARKED. ST LV FU3 T ST LO ST N ST HI CN1003 (ANP7388-D) AC IN CN1101 POWER TRANSFORMER SIDE B CN1003 CN1002 PRIMARY AWX8151- SECONDARY AWX8152- AWX8153- AWX8158- Q1002 Q1001 Q1004 Q1003 (ANP7388-D) VSX-49TXi...

  • Page 128: 1394 Module Assy

    CN401 C307 IC306 IC401 Q103 IC101 Q101 Q102 IC201 IC203 IC306 IC407 IC404 IC402 (ANP7443-A) CN401 CN705 SIDE B 1 4 4 1 4 4 Q401 IC406 IC104 IC405 IC304 IC103 IC302 IC301 IC305 IC403 IC205 IC202 IC204 (ANP7443-A) VSX-49TXi...

  • Page 129: Pcb Parts List

    2..POSISTER(R) Assy AWX7846 C202, C222 CKSRYB473K16 2..FL SUPPLY Assy AWX7871 C215 CKSRYB681K50 2..STANDBY Assy AWX7901 2..DSP DIODE Assy AWX7958 RESISTORS 2..TRANS(B) Assy AWX8057 R211 RD1/4PU221J 2..SP(A) Assy AWX8148 R221 RD1/4PU222J 2..SP(B) Assy AWX8151 R233 RD1/4PU391J R243 RS1/10S0R0J 1..1394 Assy AWK7759 VSX-49TXi...
  • Page 130 C2330-C2333, C2335, C2336 CKSRYB103K50 IC2102, IC2103 TC74HC4053AFT C2341, C2342, C2349, C2350, C2356 CKSRYB103K50 C2359, C2360, C2363, C2364 CKSRYB103K50 IC2105 TK15420M Q2101-Q2103, Q2105-Q2108 2SC4081 C2382-C2384, C2387, C2389 CKSRYB103K50 Q2104 UN5212 C2319-C2324, C2328, C2351 CKSRYB104K16 D2101-D2103 1SS355 C2373-C2375, C2393, C2394 CKSRYB104K16 VSX-49TXi...
  • Page 131 CN3303 10P PLUG KM200TA10 C2943, C2944, C2967, C2978, C2979 CKSRYB103K50 CN3301 12P PLUG KM200TA12 CN3304 18P PLUG KM200TA18 C2852, C2925, C2930-C2935, C2966 CKSRYB104K16 CN3302 8P PLUG KM200TA8 C2983, C2984, C2986 CKSRYB104K16 C2994-C2996 CKSRYB105K6R3 C2864 CKSRYB122K50 MIC AMP ASSY C2921 CKSRYB222K50 VSX-49TXi...
  • Page 132 CN3204 KR CONNECTOR B8B-PH-K C3565, C3566 CENA220M25 C3501, C3502, C3601, C3602 CENA470M25 HEAD PHONE ASSY C3701, C3702, C3801, C3802 CENA470M25 CAPACITORS C3427, C3447, C3467, C3487 CKSRYB102K50 C3209 CKSRYB104K16 C3505-C3508, C3513, C3514 CKSRYB103K50 C3605-C3608, C3613, C3614 CKSRYB103K50 RESISTORS C3705-C3708, C3713, C3714 CKSRYB103K50 VSX-49TXi...
  • Page 133 D3026, D3028, D3029 SLI-343DUW VOL ASSY D3001, D3003, D3005, D3007,D3009 SLI-343URW SWITCHES AND RELAYS D3011, D3013, D3015-D3018,D3025 SLI-343URW S3102 ASX7037 D3019 TLGE68TG CAPACITORS D3033 UDZS6.2B C3108, C3109 CKSRYB103K50 COILSANDFILTERS X3001 CERAMIC RES.(4.19MHz) ASS7042 RESISTORS L3001 CHIP BEAD ATL7002 R3107, R3108 RS1/16S473J VSX-49TXi...
  • Page 134 C5069, C5070, C5085, C5086 CKSRYB473K50 C5868 CEAT331M10 C5089, C5090, C5097, C5098 CKSRYB473K50 C5847 CEAT471M6R3 C5131-C5134, C5233-C5236,C5242 CKSRYB473K50 C5818 CEJQ100M16 C5244, C5331-C5334,C5431-C5434 CKSRYB473K50 C5832, C5837, C5844 CEJQ100M25 C5801, C5802, C5828, C5830,C5833 CEJQ1R0M50 RESISTORS C5835 CEJQ1R0M50 > R5007, R5008, R5021, R5022 RD1/4MUF470J VSX-49TXi...
  • Page 135 IS62C256-45T C476, C485 CEHAZA101M10 IC403 IS63LV1024-12T C158, C161 CEHAZA470M16 C302 CEHAZL101M25 IC701 M30620SAFP C306, C309, C447, C448, C701 CEJQ101M6R3 IC201 PM4007A > IC305, IC415, IC713 PQ3DZ13 C704 CEJQ101M6R3 > IC416 PQ7VZ5 C481, C482, C718, C744, C745 CEJQ470M16 IC102 TC74HC151AF VSX-49TXi...
  • Page 136 R175, R703, R713, R719, R722 RAB4C221J R520, R523, R524 RAB4C103J R771 RAB4C221J R565, R580, R581, R591, R592 RAB4C330J R560, R561, R563, R564 RAB4C470J R345, R346, R368, R369, R766 RAB4C330J R573-R575 RAB4C470J R772 RAB4C330J R329, R330, R365, R376, R377 RAB4C470J R588 RAB4C680J VSX-49TXi...
  • Page 137 C4103, C4403, C4603 CEHAT102M10 C6415, C6416, C6425, C6426 CKSRYB103K50 C4108, C4408, C4608 CEHAT470M16 C6022, C6042, C6062, C6082 CKSRYB104K16 C4101, C4401, C4601 CEHAZL101M10 C6119, C6120, C6219, C6220 CKSRYB104K16 C4106, C4107, C4406, C4407 CEHAZL470M25 C6319, C6320, C6419, C6420 CKSRYB104K16 C4606, C4607 CEHAZL470M25 VSX-49TXi...
  • Page 138 CFTYA224J50 R4214,R4215,R4315,R4514,R4515 RS1/16S1503F C4302 CKSRYB221K50 R4714, R4715 RS1/16S1503F RESISTORS R4231,R4232,R4332,R4531,R4532 RS1/16S3902F R4731, R4732 RS1/16S3902F R4317 ACN7117 > R4218, R4518, R4718 RS1LMF2R2J R4303 ACN7118 Other Resistors RS1/16S###J R4304 ACN7119 > R4318 RS1LMF2R2J OTHERS Other Resistors RS1/16S###J J4802 LEAD HOUSING ADX7371 VSX-49TXi...
  • Page 139 L1101, L1102 (NOISE FILTER) RTF1167 CAPACITORS TRANSFORMERS > C4003 ACE7036 T1101 ATT7043 C4051, C4052 ACH7117 CAPACITORS C4011 ACH7159 C4053, C4054 CEAT101M63 C1107 CCSRCH101J50 C4023, C4024 CEAT471M16 C1109 CEAT100M50 C1103, C1104 CEAT101M10 C4021, C4022, C4032 CEAT472M16 C1102 CEAT222M25 C4041, C4042 CEAT472M35 C1110 CEAT470M25 VSX-49TXi...
  • Page 140 2SC5174P > CN1006 4P SP TERMINAL AKE7089 D1901, D1902 UDZ22B > CN1001 6P PLUG AKM7056 > 1004 1P AC OUTLET AKP1033 CAPACITORS H1001,H1002 FUSE HOL. AKR1007 C1901-C1903 CEJQ100M50 CN1005 7P PLUG KM250NA7L RESISTORS > CN1002 AC CORD SOCKET RKP1751 VSX-49TXi...
  • Page 141 R101-R104, R203, R209, R212 RAB4C472J SEMICONDUCTORS R219, R229, R230, R238, R248 RAB4C472J IC203 BU2370FV R256, R358-R361 RAB4C472J IC402 CY22381FC-PA R316, R405 RAB4C680J IC302 K4S641632F-TC75 R294, R295 RS1/16S5101F > MM1562FF > NJM2391DL1-33 R283-R286, R289–R292 RS1/16S56R0D R206 RS1/16S6341D IC204 NJU7093AF Other Resistors RS1/16S###J VSX-49TXi...
  • Page 142 Mark No. Description Part No. OTHERS CN101 7P FFC CONNECTOR RKN1048 CN401 22P FFC CONNECTOR VKN1426 JA1, JA2 1394 TERMINAL VKN1800 VSX-49TXi...

  • Page 143: Adjustment

    6. ADJUSTMENT There is no information to be shown in this chapter. VSX-49TXi...

  • Page 144: General Information

    – : 0 dB → – 6 dB → 0 dB → – 6 dB, . . . starts from 88.5 MHz FM in the + direction. When the code is issued again, auto scan starts from 1062 kHz AM in the – direction. VSX-49TXi...

  • Page 145: Protection Circuit Control

    2 Fan detection If the fan is forcibly stopped, the FAN_DET port becomes "H." Detecting "H," the microcomputer performs the following operations: 1. System muting on 2. Protection relays off The warning indication "FAN STOP" appears (flashing) on the FL display. VSX-49TXi...
  • Page 146 If there is a fault in the power amplifier or a high-level signal lower than5 Hz is input, the DC_DET port becomes "H." Detecting "H," the microcomputer performs the following operations: 1. System muting on 2. Protection relays off The warning indication "AMP ERR" appears on the FL display. VSX-49TXi...
  • Page 147 ¶ Protection process list VSX-49TXi...

  • Page 148: Disassembly

    7.1.2 Disassembly Exterior Block Remove the Top Plate BK (Screws × 13) Remove eight screws and three connectors Remove the Side Alum BK (Screws × 4)(for VSX-49TXi) POWER AMP (BR) POWER AMP (R) Assy Assy Top Plate BK ×3 ×3 ×2...
  • Page 149 SP (A) Assy Remove six connectors from MOTHER Assy FUSE Remove the Rear Panel Block Assy A/V I/O Assy Rear Panel ×26 TRANS (B) Assy TRANS (A) Assy ×22 ×11 SP (B) Assy AC PRIMARY Assy FM/AM TUNER Module VSX-49TXi...
  • Page 150 Remove the connector Remove the screw Remove DAC10 Assy and DSP Assy (Connectors × 5) DSP Assy VR & PRE OUT LOCAL SUPPLY Assy Assy DSP3 Assy ANALOG IN & A/D Assy MOTHER Assy DAC10 Assy DSP DIODE Assy VSX-49TXi...

  • Page 151: Front Panel Block

    Remove screws (× 11) Remove the Front Panel Block ×2 ×2 ×6 HEADPHONE FRONT A/V MIC & OPT Assy Assy Assy INPUT SEL Assy POWER SW Assy STANDBY MIC AMP Assy Assy DISPLAY Assy VOL Assy FL SUPPLY Assy MULTI JOG Assy VSX-49TXi...

  • Page 152: Parts

    EXP ST2 FAN DET EXP OE2 DISP EN EXP CLK2 OSD RST EXP DT2 OSD CS EVR CS SYNC DET EVR CLK DISP RST EVR DT DISP RDY M62429 CLK OSD/DISP CLK M62429 DT DISP DI A4052F OSD/DISP DO A4052E VSX-49TXi...
  • Page 153 RYCTRL VSX-49TXi...
  • Page 154 " " L x i f " " x i f c t i , t i " f " " " L x i f − C-SW − − t i r t i r VSX-49TXi...
  • Page 155 P02/FLD10 P91/XCOUT FUNC_L P03/FLD11 P90/XCIN FUNC_R P04/FLD12 INPUT_L P05/FLD13 INPUT_R XOUT P06/FLD14 XOUT P07/FLD15 CHECKER P10/FLD16 P46/T2OUT P11/FLD17 P45/T1OUT P12/FLD18 P44/PWM1 P43/BUZO1 P13/FLD19 232C DET P42/INT3 P14/FLD20 MR IN P41/INT1 P15/FLD21 MIC SW P40/INT0 P16/FLD22 POWER ON P87/PWMO/FLD39 P17/FLD23 VSX-49TXi...
  • Page 156 • Pin Function − − − l l i − l l i − – – 232C DET 232C detection MC ACC − − − VSX-49TXi...
  • Page 157 M30620SAFP (DSP ASSY : IC701) • DSP Microcomputer • Pin Function ) t i t s i − − c t i t i r t i r t i r VSX-49TXi...
  • Page 158 • Pin Function − − y f i c t i ) t r ) t r ) t r ) t r ) t r ) t r ) t r − ) t r − − VSX-49TXi...
  • Page 159 − − − BU4094BCFV (DSP ASSY : IC704) • Expansion IC • Pin Function i g i c t i − − − c t i − VSX-49TXi...

  • Page 160: Display

    1-4A 2-4A 3-4A 4-4A 5-4A 1-4B 2-4B 3-4B 4-4B 5-4B 1-5A 2-5A 3-5A 4-5A 5-5A 1-5B 2-5B 3-5B 4-5B 5-5B 1-6A 2-6A 3-6A 4-6A 5-6A 1-6B 2-6B 3-6B 4-6B 5-6B 1-7A 2-7A 3-7A 4-7A 5-7A 1-7B 2-7B 3-7B 4-7B 5-7B Upper Lower VSX-49TXi...
  • Page 161 − − − 5-6A 5-6B − − − − 1-7A 1-7B − − − − 2-7A 2-7B − − − − 3-7A 3-7B − − − − 4-7A 4-7B − − − − 5-7A 5-7B − − − − VSX-49TXi...

  • Page 162: Remote Control Unit

    Therefore, when replacing, be sure to use parts of identical designation. • Screws adjacent to mark on the product are used for disassembly. Sub PWB VSX-49TXi...
  • Page 163 • • • • • Screw AZB7144 Touch Pen AZA7350 Slide Switch JSB1220–0111 Slide Knob AZA7347 FPC Connector CFP5519–0101 FPC Connector E-CP0535–008 MT Switch JPM1030–0801 Key Top A AZA7345 Key Top B AZA7346 Rubber Sheet A AZA7410 Rubber Sheet B AZA7411 VSX-49TXi...

  • Page 164: Remote Sch

    K1 : K2 : FUNCTION K6 : VOL - K7 : FUNCTION SID303C SID303C SID303C K12 : CH + K13 : CH - 2SC3265 K18 : VOL + 2SC3265 2SC1712 2SC3265 1SS294 FM02 RESET 3.3V 2.7V 3.6V 0.1/10 47/10 RESET VSX-49TXi...
  • Page 165 13 IC15 (2/2) 6.8k 2.2/50 6.8k 2.2/50 LOCK 6.8k X1 8MHz 3.3/50 6.8k 2,2/50 SB330A30FS 2SK2009 VOIN 6.8k VCLK ON/OFF IC10 BA10324AF VSTRB CONT VOUT MODULE 47µH 2SJ356 CL2031-1 D3 1SS294 N.C. N.C. N.C. PKM13EPY-4002 SWAP M66272FP 2SC2712 N.C. N.C. VSX-49TXi...

  • Page 166: Remote Pcb Diagram

    7.3.3 Remote PCB Diagram SIDE A PCB ASSY Open (Remove) JP2 (L). IC6 IC7 IC15 M30622 7474 IC15 IC16 Open (Remove) JP1 (H). IC17 IC5 IC18 SB330A30FS BA10324AF IC10 IC10 M6627AFP VSX-49TXi...
  • Page 167 SIDE B Remote PCB DIAGRAM VSX-49TXi...

  • Page 168: Remote Parts List

    RN2414 Q2,Q3,Q5,Q7 2SC2712 2SA1162 2SC3265 Q9,Q10 DTD113ZK S-80826ANNP-EDP S-80836ANNP-EDO 2SA1037 SID303C-01 1SS294 SPS-503C D2,D4,D30 RLS-73 1SS181 D8-D25 BR1111C D26-D29 FA1101F-430 0.1F/6.3v 1000mF/6.3v C6, C9 47mF/10v 10mF/10v C2,C5,C11,C17-C19 0.1mF/25v C7,C12 1mF/25v 470pF/25v 15W 1/4w Other Resistors RS1/16SJ Ceramic Resona(8MHz)CST8.00MTW T557007 VSX-49TXi...

  • Page 169: Panel Facilities

    MULTI CH INPUT is 4 Remote sensor selected. When an unassigned i.LINK-equipped Receives the signals from the remote control. component is selected, no INPUT indicator will 5 Display light. 10 LISTENING MODE SELECTOR dial Turn and push to select a listening mode. VSX-49TXi...
  • Page 170 INPUT terminals. Press to use the multi room feature (requires an 25 SETUP MIC jack optional PIONEER Multi-Room Remote Sensor Plug in the setup mic here. This is very impor- Unit MR-100 or another IR receiver). tant for setting up your system to get proper CONTROL button: Used together with the surround sound.
  • Page 171 STEREO : Lights when a FM stereo broadcast is received in the auto stereo mode. 5 Character display TUNED : Lights when a broadcast is received. Shows current mode, status, etc. VSX-49TXi...

  • Page 172: Remote Control

    This button turns off components in two ways. 4 Function buttons First, when pressed it will turn off all PIONEER These buttons are the basic controls that switch components. Secondly, any component that has...

  • Page 173: Basic Receiver Lcd Screens

    THX: Press to put the receiver into HOME THX listening mode. STANDARD: Press to put the receiver into STANDARD listening mode. ADVANCED CINEMA: Press to put the receiver into ADVANCED CINEMA listening mode. ADVANCED CONCERT: Press to put the receiver into ADVANCED CONCERT listening mode. VSX-49TXi...

  • Page 174: Receiver Sub Screen

    TAPE 2 MONITOR inputs/ outputs. Allows monitoring of a recording as it's 200 ms to match sound with slower video displays. being made. You can then use the + and – buttons to adjust the sound. VSX-49TXi...

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