AIWA NSX-AK772 HC Service Manual
Summary
This comprehensive service manual is essential documentation for diagnosing and repairing multi-format vintage audio components, including stereo receivers, CD players, and cassette tape mechanisms. It provides expert-level technicians with detailed schematics, wiring diagrams, mechanical exploded views, and specific instructions for both the main unit and individual functional sections like the tuner and speaker assemblies. Ideal for professional electronics repair specialists or advanced DIY restorers handling classic audio equipment.
Page 1 Text Content
HCNSX-AK772
SERVICE MANUAL COMPACT DISC STEREO BASIC TAPE MECHANISM: 2ZM-3MK2YPR4N CASSETTE RECEIVER BASIC CD MECHANISM: 4ZG-1 VOS1DSH
SYSTEM CD-CASSEIVER SPEAKER
SX-NAV704
NSX-AK772 CX-NAK772
SX-CR675
If requiring information about the CD mechanism, see Service Manual of 4ZG-1, S/M Code No.09-985-249-8OT.
S/M Code No. 09-989-293-9OT
REVISION
Page Summary Contents For AIWA NSX-AK772 HC Service Manual
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HCNSX-AK772 SERVICE MANUAL COMPACT DISC STEREO BASIC TAPE MECHANISM: 2ZM-3MK2YPR4N CASSETTE RECEIVER BASIC CD MECHANISM: 4ZG-1 VOS1DSH SYSTEM CD-CASSEIVER SPEAKER SX-NAV704 NSX-AK772 CX-NAK772 SX-CR67...
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TABLE OF CONTENTS SPECIFICATIONS NOTICE BEFORE STARTING REPAIR 4, 5 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING............................................ PRECAUTION TO REPLACE OPTICAL BLOCK ...
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SPECIFICATIONS <FM Tuner section> <Compact disc player section> Tuning range 87.5 MHz to 108 MHz Laser Semiconductor laser Usable sensitivity(IHF) 13.2 d Bf (λ =780 nm) Antenna terminals 7...
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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, el...
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FRONT C.B MAIN C.B In some models, it is PIN (. 19 . PIN101CON601 N101 MICROCOMPUTER OVER LOAD DET POWER AMP DC DET POWER AMP AC DET POWER SUPPLY PIN number is different HOLD SW depending upon micropr...
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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 perf...
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ELECTRICAL MAIN PARTS LIST PART NO. KANRI DESCRIPTIONREF. NO. REF. NO. KANRI DESCRIPTIONPART NO. NO. NO. IC 87-A40-341-080 ZENER,MTZJ 36 A 87-A40-004-080 ZENER,MTZJ16A 88-NF5-615-040 C-IC,MSM6654A-521...
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PART NO. KANRI DESCRIPTIONREF. NO. REF. NO. KANRI DESCRIPTIONPART NO. NO. NO. C247 87-010-178-080 C-CAP,S 1000P-50 CH C458 87-010-404-080 CAP, ELECT 4.7-50V C248 87-010-178-080 C-CAP,S 1000P-50 CH C50...
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PART NO. KANRI DESCRIPTIONREF. NO. REF. NO. KANRI DESCRIPTIONPART NO. NO. NO. C765 87-010-197-080 CAP, CHIP 0.01 DM L202 87-003-383-010 COIL,1UH-S C766 87-010-197-080 CAP, CHIP 0.01 DM L301 87-A50-049...
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PART NO. KANRI DESCRIPTIONREF. NO. REF. NO. KANRI DESCRIPTIONPART NO. NO. NO. C373 87-010-196-080 CHIP CAPACITOR,0.1-25 LED435 87-A40-448-080 LED,SLR-56PTT31 GRN C375 87-010-196-080 CHIP CAPACITOR,0.1...
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PART NO. KANRI DESCRIPTIONREF. NO. REF. NO. KANRI DESCRIPTIONPART NO. NO. NO. S354 87-A90-095-080 SW,TACT EVQ11G04M C510 87-010-221-080 CAP,E 470-10 M SME S355 87-A90-095-080 SW,TACT EVQ11G04M C511 87...
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PART NO. KANRI DESCRIPTIONREF. NO. REF. NO. KANRI DESCRIPTIONPART NO. NO. NO. T2 87-A60-317-010 TERMINAL, 1P MSC SW2 87-A90-248-019 SW,MICRO ESE11SH2CXQ SW3 87-A90-248-019 SW,MICRO ESE11SH2CXQ SW4 87-...
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TRANSISTOR ILLUSTRATION KTA1266GR CC5551 2SA1296 2SB1370 2SD2494 KTC3198GR CSC4115 2SB1344 2SD2495 2SB1625 FN1016 2SB1626 FP1016 2SD2025 2SA933 2SK2937 2SK2158 2SA1235F DTC143TK 2SC2714 KTA1298Y 2SC30...
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BLOCK DIAGRAM - 1 (PRO)
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BLOCK DIAGRAM - 1 (MAIN / FRONT)
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WIRING - 1 (MAIN)
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SCHEMATIC DIAGRAM - 1 (MAIN 1/2)
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WIRING - 2.1 (FRONT)
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WIRING - 2.2 (FRONT)
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SCHEMATIC DIAGRAM - 2 (FRONT)
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SCHEMATIC DIAGRAM - 3 (MAIN 2/2)
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WIRING - 3 (PRO)
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SCHEMATIC DIAGRAM - 4 (PRO)
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WIRING - 4 (SW) WIRING - 5 (AC1 /AC2)
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WIRING - 6 (DECK)
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SCHEMATIC DIAGRAM - 5 (TUNER FRONT END)
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IC BLOCK DIAGRAM IC M62439SP IC BU4066BCF
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IC BU2092F IC M65847AFP
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IC BU4094BCF IC BU4052BCF
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IC NJM2152M IC BA3835S
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IC BA7762AFS IC MSM6654A-521GS-KR1
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IC M62463FP IC LA1837NL
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IC M62445FP-600D IC LC72131D
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IC DESCRIPTION IC, LC866560W-5J08 Pin Name I/O Description Pin No. CLK CLOCK output for MAIN,FRONT PWB. DATA DATA output for MAIN, FRONT PWB. STB Latch strobe output for MAIN PWB. O-LED LED ON/OFF out...
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Pin Name I/O Description Pin No. P26/FM 1 FL segment P26 output. P25/RDS FL segment P25 output. P24/R+1 FL segment P24 output. P23/DSP FL segment P23 output. P22/D-SURR I/O FL segment P22 output / SUR...
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FL GRID ASSIGNMENT & ANODE CONNECTION FL, BJ610GK GRID ASSIGNMENT
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ANODE CONNECTION
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ADJUSTMENT <TUNER / DECK> MAIN C.B A TC943 SFR351 TC941 SFR352 TP5 L772 IC303 IC771 L981 TP2 TP3 TP9 (RCH) TP4 TP8 (LCH) FFE801 TP7 (RCH) TP1 (VT) TP6 (LCH) DECK C.BG DECK–1 P,DECK-2 R/P/E HEAD ...
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PRACTICAL SERVICE FIGURE 9. DC Balance / Mono Distortion Adjustment 13. PB Frequency Response Check (DECK1, DECK2) <TUNER SECTION> <DECK SECTION> Settings : Test point : TP3, TP4 (DC Bal...
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MECHANICAL EXPLODED VIEW 1 / 1 4ZG-1 VOS1DSH SW C.B BINDER WIRE FRONT C.B MAIN C.B PLATE, SHILD SIDE HT-SINK, DIODE HT-SINK, TR PLATE, EARTH MIC HT-SINK, ASSY AC1 C.B HT-SINK, TR PRO C.B HT-SINK, FIN ...
Manual Details
| Brand | Aiwa |
|---|---|
| Pages | 46 |
| File Size | 6.70 MB |
| Published | May 13, 2026 |
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Frequently Asked Questions
How do I service the CD mechanism?
Refer to the Service Manual of 4ZG-1, with S/M Code No.09-985-249-8OT.
What are the safety precautions for maintenance?
Be careful to protect your eyes from the laser beam during servicing and follow explicit precaustions for replacing the optical block.
What is the operational range of the FM tuner?
The tuning range for the FM tuner section is 87.5 MHz to 108 MHz.
Where can I find details on component wiring?
Wiring diagrams are available in multiple sections, including Main (Fig. 1/2), Front (Fig. 2-1 and 2-2), and professional sections.