Aiwa NSX-VC220 Service Manual
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Aiwa NSX-VC220 Service Manual

Aiwa NSX-VC220 Service Manual

Compact disk stereo system
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SERVICE MANUAL
COMPACT DISC
STEREO SYSTEM
SYSTEM
NSX-VC220
• This Service Manual is the “Revision Publishing” and replaces
“Simple Manual” of NSX-VC220 <HR>, (S/M Code No. 09-018-449-8T1).
• If requiring information about the CD mechanism, see Service Manual of
BZG-2, (S/M Code No. 09-00C-353-2N6).
NSX-VC220
BASIC TAPE MECHANISM : ZZM-3 PR2NM
BASIC CD MECHANISM : BZG-2 MVSD3NM
CD
CASSEIVER
CX-NVC220
S/M Code No. 09-01A-449-8R1
REMOTE
SPEAKER
CONTROLLER
SX-NVC222
RC-BAS09 VS
HR

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Summary of Contents for Aiwa NSX-VC220

  • Page 1 SX-NVC222 RC-BAS09 VS • This Service Manual is the “Revision Publishing” and replaces “Simple Manual” of NSX-VC220 <HR>, (S/M Code No. 09-018-449-8T1). • If requiring information about the CD mechanism, see Service Manual of BZG-2, (S/M Code No. 09-00C-353-2N6). S/M Code No. 09-01A-449-8R1...

  • Page 2: Specifications

    SPECIFICATIONS MAIN UNIT CX-NVC220 DISC PLAYER Laser Semiconductor laser (λ = 780 nm) TUNER D/A converter 1 bit dual FM tuning range 87.5 MHz to 108 MHz Signal-to-noise ratio 90 dB (1 kHz, 0 dB) FM usable sensitivity (IHF) 13.2 dBf Harmonic distortion 0.05 % (1 kHz, 0 dB) FM antenna terminals...

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

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

  • Page 4: Note On Before Starting Repair

    NOTE ON BEFORE STARTING REPAIR 1. Forced discharge of electrolytic capacitor of power supply block When repair is going to be attempted in the set that uses relay circuit in the power supply block, electric potential is kept charged across the electrolytic capacitors (C101, 102) even though AC power cord is removed.
  • Page 5 In such a case, check also if the POWER AMPLIFIER circuit or power supply circuit has any abnormalities or not. 2-2. Regarding reset There are cases that the machine does not work correctly because the MICROCOMPUTER is not reset even though the AC power cord is re-inserted, or the software reset (pressing the STOP key + POWER key) is performed.

  • Page 6: Electrical Main Parts List

    ELECTRICAL MAIN PARTS LIST REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 87-A12-062-080 CAP, ELECT 100-10V 87-A12-092-080 CAP, ELECT 22-50 87-A21-269-010 IC,EW732 87-A12-067-080 CAP, ELECT 330-16V 87-A21-893-040 C-IC,NJM14558V-TE2 87-010-190-080 S CHIP F 0.01 87-A21-419-040 C-IC,NJM14558MD-TE2 87-A12-089-080 CAP, ELECT 3.3-50V 8B-NHA-602-030 IC,UPD780226GF-024-3BA...
  • Page 7 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C625 87-010-956-080 C-CAP,S 0.068-25KB C512 87-012-336-080 C-CAP,U 330P-50 B C626 87-010-956-080 C-CAP,S 0.068-25KB C513 87-010-829-080 CAP, U 0.047-16 C630 87-016-669-080 C-CAP,S 0.1-25 K B C514 87-012-286-080 CAP, U 0.01-25 C677 87-012-286-080 CAP, U 0.01-25...
  • Page 8 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C795 87-012-286-080 C-CAP,U 0.01-25 K B C979 87-012-195-080 C-CAP,U 100P-50 J CH C796 87-012-286-080 C-CAP,U 0.01-25 K B C981 87-A12-071-080 CAP, ELECT 47-25V C797 87-A12-091-080 CAP, ELECT 10-50V C982 87-010-759-080 C-CAP,U, 0.1-25F...
  • Page 9 REF. NO. PART NO. KANRI DESCRIPTION R129 87-A00-257-080 RES,M/F 0.15-1W J R130 87-A00-257-080 RES,M/F 0.15-1W J R131 87-A00-257-080 RES,M/F 0.15-1W J R132 87-A00-257-080 RES,M/F 0.15-1W J TH101 87-A91-042-080 C-THMS,100K 55001 TH102 87-A91-042-080 C-THMS,100K 55001 DECK C.B 87-099-753-010 CONN,11P H 9604 CNA401 86-ZM3-604-210 CONN ASSY, 3P-PB...

  • Page 10: Transistor Illustration

    TRANSISTOR ILLUSTRATION E C B B C E B C E E C B 2SA1980G 2SA1981Y 2SB1370E CC5551 CDA1585BC 2SB1677 STC250 CSC4115BC 2SD2619 KTC3198GR G D S E C B 2SK2937 2SJ460 2SA1235F SBT5551 2SK360E 2SK2541 2SC2714O KRA102S 2SC3052F KRC102S-RTK 2SC5345SF/S(O) KRC104S CSD1306E...
  • Page 11 WIRING – 1 (MAIN / FRONT / TUNER) – 11 –...
  • Page 12 SCHEMATIC DIAGRAM – 1 (MAIN 1 / 2) – 12 –...
  • Page 13 SCHEMATIC DIAGRAM – 2 (FRONT / DECK) – 13 –...
  • Page 14 SCHEMATIC DIAGRAM – 3 (TUNER) – 14 –...
  • Page 15 SCHEMATIC DIAGRAM – 4 (MAIN 2 / 2 : PT SECTION) – 15 –...
  • Page 16 WIRING – 2 (AMP) – 16 –...
  • Page 17 SCHEMATIC DIAGRAM – 5 (AMP) – 17 –...
  • Page 18 WIRING – 3 (DECK) TO FRONT C.B CN504 E DECK C.B (FFC504) 1 3 5 7 9 11 2 4 6 8 10 (CAM2) (CAM1) (REA) (CST2) (CST1) SOL2 SOL1 SFR1 TAPE MOTOR – 18 –...
  • Page 19 IC BLOCK DIAGRAM – 19 –...
  • Page 20 FL (HNA-10SS19T) GRID ASSIGNMENT / ANODE & PIN CONNECTION ANODE CONNECTION / PIN CONNECTON GRID ASSIGNMENT – 20 –...
  • Page 21 IC DESCRIPTION IC, UPD780226GF-024-3BA Pin No. Pin Name Description SOL1 DECK1 solenoid output. SOL2 DECK2 solenoid output. O-MOTOR DECK MOTOR ON/OFF output. O-PB2 DECK2/DECK1 play output. O-BIAS BIAS ON output. O-RMT REC mute output. O-CD.ON (VCD) CD ON output. (Not used) O-TU.ON TUNER ON output.
  • Page 22 Pin No. Pin Name Description AVDD Power supply. I-HOLD Power failure detected input. I-CD SW CD mecha switch input. I-SPEANA1 A/D 1 input for spectrum analyser level display. I-SPEANA2 A/D 2 input for spectrum analyser level display. I-SPEANA3 A/D 3 input for spectrum analyser level display. I-KEY1 Key 1 input.
  • Page 23 Pin No. Pin Name Description 81 ~ 90 P13 ~ P22 FL segment P13 ~ P22 output. 91 ~ 100 G1 ~ G10 FL grid G1 ~ G10 output. – 23 –...
  • Page 24 ADJUSTMENT <TUNER / FRONT / DECK> < TUNER SECTION > 1. Clock Frequency Check 7. FM Tracking Adjustment Settings : • Test point : TP2 (CLK) Settings : • Test point : TP8 (Lch), TP9 (Rch) Method : Set to MW 1602 kHz and check that the test point is •...
  • Page 25 < DECK SECTION > 11. Tape Speed Adjustment (DECK 2) 15. REC/PB Frequency Response Check (DECK 2) Settings : • Test tape : TTA–602 Settings : • Test tape : TTA–100 • Test point : TP8 (Lch), TP9 (Rch) • Test point : TP8 (Lch), TP9 (Rch) •...

  • Page 26: Cd Test Mode

    CD TEST MODE 1. How to Start the CD Test Mode While pressing the FUNCTION button, insert the AC plug to the power outlet. When the test mode is started, the message [CD TEST] is displayed. 2. How to Exit the CD Test Mode Press the POWER button or disconnect the AC plug.
  • Page 27 MECHANICAL EXPLODED VIEW 1 / 1 BZG-2 WIRE, BINDER WIRE ASSY, 160 BLK 24 WIRE, BINDER WIRE,ASSY HT-SINK WIRE, BINDER WIRE ASSY, ZZM-3 CABI, BOTTOM 160 BLK 24 PLATE,SHIELD PLATE,EARTH MIC CUSH, 11-8.5-2 – 27 –...

  • Page 28: Mechanical Parts List

    31 8B-NHA-606-010 PT,BNH-A HR 7 8B-NHA-004-010 WINDOW,DISP H 32 8B-NFA-218-010 HLDR,TR SUS 8 8Z-NF6-210-010 DMPR,150 N 33 8B-NFA-203-010 HLDR,AMP 9 87-CE3-023-010 BADGE,AIWA 30N SILV 34 8B-NFA-006-010 PANEL,RIGHT 10 87-NF4-216-010 HLDR,LOCK 1 35 8B-NHA-008-010 CABI,REAR HRSM 11 86-NF9-224-010 SPR-C,LOCK 36 8B-NFA-005-010 PANEL,LEFT...
  • Page 29 TAPE MECHANISM EXPLODED VIEW 1 / 1 TERMINAL,LB1 TERMINAL, IC, EW732 IC, EW732 – 29 –...

  • Page 30: Tape Mechanism Parts List

    TAPE MECHANISM PARTS LIST 1 / 1 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 8Z-ZM3-227-010 BELT,MAIN M3 8Z-ZM3-233-010 SPR-T,BRG M3 8Z-ZM3-235-010 BELT,MAIN L 84-ZM2-227-310 SPR-C,AZIMUTH 8Z-ZM1-235-010 PULLEY,MOT 87-A90-403-110 HEAD,RPH MS15R 87-045-347-010 MOT,SHU2L 70 87-A90-404-010 HEAD,EH LE15B 8Z-ZM1-232-010 GEAR,IDL FF/REW 8Z-ZM3-239-010...

  • Page 31: General Speaker Disassembly Instructions (For Reference)

    GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS (FOR REFERENCE) Type.1 Type.4 Insert a flat-bladed screwdriver into the position indicated by the TOOLS arrows and remove the panel. Remove the screws of each speaker 1 Plastic head hammer unit and then remove the speaker units. 2 (() flat head screwdriver 3 Cut chisel How to Remove the PANEL, FR...

  • Page 32: Speaker Parts List

    SPEAKER PARTS LIST <SX – NVC222 (YSC)> REF. NO. PART NO. KANRI DESCRIPTION 1 8B-NSL-001-010 PANEL,FR 2 8B-NSL-020-010 GRILLE,FRAME ASSY 2WAY 3 8A-NSL 603-010 SPKR,CERAMIC 4 8B-NSL-019-010 SPKR,CERAMIC ASSY 5 8B-NSL-610-010 SPKR,120 20/2 ACCESSORIES / PACKAGE LIST REF. NO. PART NO. KANRI DESCRIPTION 1 8B-NHA-901-010...
  • Page 33 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 9301978 9720501 921338 Printed in Singapore...

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