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Aiwa XP-V422 Service Manual
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Aiwa XP-V422 Service Manual

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SERVICE MANUAL
COMPACT DISC PLAYER
XP-V420
XP-V421
XP-V422
XP-V423
XP-V426C
BASIC CD MECHANISM : DA23LH
S/M Code No. 09-013-354-9N1
Y1(S,B)
AEZ1(S)
AEZ1(S)
YL1(S,DT,YT,LT)
YL1(S)

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Summary of Contents for Aiwa XP-V422

  • Page 1 XP-V420 Y1(S,B) XP-V421 AEZ1(S) XP-V422 AEZ1(S) XP-V423 YL1(S,DT,YT,LT) XP-V426C YL1(S) SERVICE MANUAL COMPACT DISC PLAYER BASIC CD MECHANISM : DA23LH S/M Code No. 09-013-354-9N1...

  • Page 2: Specifications

    SPECIFICATIONS XP-V420 XP-V421, V422 • • Design and specifications are subject to change without Design and specifications are subject to change without notice notice XP-V426C, V423 • Design and specifications are subject to change without notice...

  • Page 3: Protection Of Eyes From Laser Beam During Servicing

    PROTECTION OF EYES FROM LASER BEAM DURING SERVICING This set employs laser. Therefore, be sure to follow carefully the CAUTION instructions below when servicing. Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous WARNING! radiation exposure.

  • Page 4: Pick Up Assy

    Precaution to replace Optical block (SF-P200) Body or clothes electrostatic potential could ruin laser diode in the optical block. Be sure ground body and workbench, and use care the clothes do not touch the diode. 1) After the connection, remove solder shown in the right figure.
  • Page 5 ELECTRICAL MAIN PARTS LIST-1/2 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C414 87-012-188-080 C-CAP,U 47P-50 CH C415 87-A10-260-080 C-CAP,U 0.1-16 K B 87-A21-082-040 C-IC,BA6655AFV C417 87-012-188-080 C-CAP,U 47P-50 CH 8A-HCH-603-010 C-IC,MN101C439-AE C418 87-012-176-080 CAP 15P 87-A21-446-010 C-IC,MN662782RPT1 C419...
  • Page 6 ELECTRICAL MAIN PARTS LIST-2/2 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION L502 87-A50-367-080 C-COIL, 10UH LQG21F S306 87-036-349-010 SW,TACT SKHHAJ L601 87-A50-524-080 COIL,470UH LHL06NB S307 87-036-349-010 SW,TACT SKHHAJ LCD101 8A-HC7-602-010 LCD,AHC-7 S308 87-036-349-010 SW,TACT SKHHAJ R115 87-022-525-080 C-RES,S 20K-1/10W F...
  • Page 7 TRANSISTOR ILLUSTRATION-1/1 B C E 2SA1162 IMH4A 2SB1132 2SC2412 2SD1664 2SC2712 CPH3106 CPH3206 DTC114EK DTC114TK DTC123JK RN2411...
  • Page 8 FL (AHC-7) GRID ASSIGNMENT/ANODE CONNECTION-1/1...
  • Page 9 SCHEMATIC DIAGRAM-1/1...
  • Page 10 WIRING-1/2 (MAIN: COMPONENT SIDE) -10-...
  • Page 11 WIRING-2/2 (MAIN: CONDUCTOR SIDE) -11-...
  • Page 12 TEST MODE-1/3 OPEN/CLOSE SW SHORT LAND S303 IC502 IC501 IC401 IC451 IC601 IC701 IC301 TEST MODE SHORT LAND -12-...
  • Page 13 TEST MODE-2/3 The servo circuit of this model is designed to be adjustment-free and the adjustment value and disc distinction (CD-DA, CD-R and CD-RW) etc. is adjusted by the IC. Therefore the adjustment is performed at each TOC reading. The adjustment conditions in the IC of each servo can be monitored in this test mode.
  • Page 14 TEST MODE-3/3 3. Confirmation of Sled movement By pressing the F.SKIP or B.SKIP button continuously during the TEST MODE, it is possible to transfer the pick-up to either the outer side or inner side. 4. Confirmation of the RF level Test point: RF and VC (Vref) Test disc: TCD-782 Confirm that the RF waveform is as shown below.
  • Page 15 WAVE FORM-1/1 IC501 Pin 7 VOLT/DIV: 0.5V IC401 Pin VOLT/DIV: 2V TIME/DIV: 1µS TIME/DIV: 5µS f=44.1kHz IC501 Pin ∞ VOLT/DIV: 0.2V IC401 Pin ™ VOLT/DIV: 1V TIME/DIV: 50µS TIME/DIV: 5µS IC501 Pin ) VOLT/DIV: 0.1V TIME/DIV: 2mS IC401 Pin VOLT/DIV: 1V TIME/DIV: 50mS f=16.93MHz -15-...
  • Page 16 IC BLOCK DIAGRAM-1/1 IC, BA6655AFV IC, AN8838NSB IC, TA2120FN IC, AN8746SA -16-...
  • Page 17 IC DESCRIPTION-1/2 (MN662782RPT1)-1/2 Pin No. Pin Name Description DVDD3 Power supply for DRAM interface. (pin No. 2 to 19). 2, 3 D0, 1 DRAM data input/output signal 0, 1. DRAM write enable signal. NRAS DRAM RAS control signal. 6, 7 D2, 3 DRAM data input/output signal 2, 3.
  • Page 18 IC DESCRIPTION-1/2 (MN662782RPT1)-2/2 Pin No. Pin Name Description AVDD1 Power supply for analog circuit (for audio output block). FSEL Noise filter ON/OFF switching input. L: ON. H: OFF. 53, 54 TMOD1, 2 Terminal mode select input terminal 1, 2. Normal: L. FLAG Flag signal output.
  • Page 19 IC DESCRIPTION-2/2 (MN101C439-AE)-1/2 Pin No. Pin Name Description COM3-0 LCD common. VLC3 — — VLC2 — — VLC1 — — — LCD power supply. OSC2 Microprocessor main clock oscillator output. (Not connected) OSC1 Microprocessor main clock oscillator input. — Ground. Sub-clock oscillator input.
  • Page 20 IC DESCRIPTION-2/2 (MN101C439-AE)-2/2 Pin No. Pin Name Description DSL1 DSL ON control output of headphones. DSL ON= H. MUTE Audio mute output. STANDBY Standby output of headphones. During standby =L. Power on= H. LCDRDO Wired LCD remote control output. (Not connected) P-OFF Power-off output of power supply IC.
  • Page 21 VOLTAGE CHART-1/2 THE MEASURED VALUE IS DC VOLTAGE CD SECTION TEST CONDITION:CD PLAY IC401 (MN662782RPT1 ) PIN'S NUMBER CD PLAY 2.88 1.44 1.47 2.88 2.67 1.44 1.46 2.69 2.88 0.60 PIN'S NUMBER CD PLAY 0.60 0.29 0.20 0.46 0.53 0.49 0.16 0.49 0.16...
  • Page 22 VOLTAGE CHART-2/2 IC501 (AN8838NSB) PIN'S NUMBER CD PLAY 2.88 1.47 1.46 1.47 1.47 1.45 1.63 0.72 1.86 PIN'S NUMBER CD PLAY 1.77 1.95 2.83 1.49 1.47 PIN'S NUMBER CD PLAY 0.32 0.46 1.50 0.32 1.43 1.48 1.58 1.42 IC502 (NJU7012F) PIN'S NUMBER CD PLAY 1.43...
  • Page 23 MECHANICAL EXPLODED VIEW-1/1 DA23LH -23-...
  • Page 24 MECHANICAL PARTS LIST-1/1 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 88-HC6-021-010 FOOT, DIA10 11 8B-HCH-066-010 LID,CD BLT<> 2 8B-HCH-007-010 CABI ASSY,BOTTOM 420 S 11 8B-HCH-068-010 LID,CD BYT<> <EXCEPT423YL1DTCC,423YL1YTCC,423YL1LTCC, 11 8B-HCH-062-010 LID,CD DT<423YL1DTCC,423YL1BDTCC> 423YL1BDTCC,423YL1BYTCC,423YL1BLTCC> 11 8B-HCH-063-010 LID,CD LT<423YL1LTCC,423YL1BLTCC>...

  • Page 25: Color Name Table

    COLOR NAME TABLE Basic color symbol Color Basic color symbol Color Basic color symbol Color Black Cream Orange Green Gray Blue Transparent Blue Gold Pink Silver Titan Silver Brown Violet White Transparent White Yellow Transparent Yellow Metallic Blue Light Blue Transparent Green Dark Blue Transparent Orange...
  • Page 26 CD MECHANISM EXPLODED VIEW-1/1 (DA23LH) -26-...
  • Page 27 CD MECHANISM PARTS LIST-1/1 (DA23LH) REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 S0-A41-A20-600 PICKUP LASER ASSY 6 S2-511-A23-200 GEAR MIDDLE 2 S0-M10-A13-500 MOTOR ASSY SPDL LH 7 S2-511-A23-400 GEAR,RACK 3 S0-M10-A10-900 MOTOR SLED ASSY 8 S4-S13-A00-200 SW,LEAF 4 S0-551-A00-900...
  • Page 28 ACCESSORIES/PACKAGE LIST-1/1 REF. NO PART NO. KANRI DESCRIPTION 1 8B-HCH-915-110 IB,EZ(EGF)C 421<421AEZ1SC> 1 8B-HCH-905-110 IB,EZ(EGF)C 422<422AEZ1SC,422AEZ1BSC> 1 8B-HCH-917-110 IB,EZ(PHNCZ)C 421<421AEZ1SC> 1 8B-HCH-907-110 IB,EZ(PHNCZ)C 422<422AEZ1SC,422AEZ1BSC> 1 8B-HCH-916-110 IB,EZ(SID)C<421AEZ1SC> 1 8B-HCH-906-110 IB,EZ(SID)C 422<422AEZ1SC,422AEZ1BSC> 1 8B-HCH-904-110 IB,LH(3L)C 426C<EXCEPT 422AEZ1SC,421AEZ1SC,422AEZ1BSC,420Y1SC> 1 8B-HCH-925-110 IB,Y(EGF)C 420<420Y1SC> 1 8B-HCH-927-110 IB,Y(PHNCZ)C 420<420Y1SC>...
  • Page 29 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 H251701 Printed in Singapore...

This manual is also suitable for:

Xp-v423Xp-v420Xp-v421Xp-v426c