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Aiwa NSX-SZ50 Service Manual

Compact disc/stereo cassette receiver
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SERVICE MANUAL
COMPACT DISC/
STEREO CASSETTE RECEIVER
SYSTEM
NSX–SZ50
• This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
NSX-SZ50 <HS,V> (S/M Code No. 09-004-424-6T3).
• If requiring information about the CD mechanism, see Service Manual of AZG-1,
(S/M Code No. 09-001-335-3NC).
NSX-SZ50
BASIC TAPE MECHANISM : 2ZM-3MK2 PR4NM(HS)
BASIC TAPE MECHANISM : 6ZM-3 PR2NM(V)
BASIC CD MECHANISM : AZG-1 ZA3RDM
CD
CASSEIVER
CX–NSZ50
SX–WNSZ50
S/M Code No. 09-004-424-6R3
REMOTE
SPEAKER
CONTROLLER
RC–ZAS01
HS,V

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Summary of Contents for Aiwa NSX-SZ50

  • Page 1 SX–WNSZ50 RC–ZAS01 • This Service Manual is the "Revision Publishing" and replaces "Simple Manual" NSX-SZ50 <HS,V> (S/M Code No. 09-004-424-6T3). • If requiring information about the CD mechanism, see Service Manual of AZG-1, (S/M Code No. 09-001-335-3NC). S/M Code No. 09-004-424-6R3...

  • Page 2: Specifications

    All manuals and user guides at all-guides.com SPECIFICATIONS Main unit CX-NSZ50 Cassette deck section FM tuner section <V> Track format 4 tracks, 2 channels stereo Tuning range FM1 (OIRT) Frequency response 50 Hz – 15000 Hz 65 MHz to 74 MHz (10 kHz step) Recording system AC bias FM2 (CCIR)

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

    All manuals and user guides at all-guides.com 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: Note On Before Starting Repair

    All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com ELECTRICAL MAIN PARTS LIST REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C0017 87-012-368-080 C-CAP,S 0.1-50 Z F C0018 87-012-368-080 C-CAP,S 0.1-50 Z F 87-020-454-010 IC,DN6851 C0019 87-016-520-000 CAP,E 3300-65 M SMG 87-A21-417-010 IC,STK490-310 C0020...
  • Page 7 All manuals and user guides at all-guides.com REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C0304 87-010-178-080 C-CAP,S 1000P-50 K B C2012 C0661 87-012-157-080 C-CAP,S 330P-50 J CH GRM<V> C0307 87-010-263-080 CAP,E 100-10 M 11L SME C0662 87-010-178-080 C-CAP,S 1000P-50 K B C2012<HS>...
  • Page 8 All manuals and user guides at all-guides.com REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C0992 87-010-312-080 C-CAP,S 15P-50 J CH GRM C0256 87-010-405-040 CAP,E 10-50 M 11L SME C0993 87-010-178-080 C-CAP,S 1000P-50 K B C2012 C0259 87-010-405-040 CAP,E 10-50 M 11L SME...

  • Page 9: Chip Resistor Part Code

    All manuals and user guides at all-guides.com REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION S0404 87-A91-024-180 SW,TACT KSHG611BT !PT0001 8A-NF8-608-010 PT,ANF-8 EZ<V> S0405 87-A91-024-180 SW,TACT KSHG611BT !PT0002 8A-NF8-673-010 PT,SUB ANF-8 (H)KAMI<HS> S0406 87-A91-024-180 SW,TACT KSHG611BT !PT0002 8A-NF8-662-010 PT,SUB ANF-8 (E)<V>...

  • Page 10: Transistor Illustration

    All manuals and user guides at all-guides.com TRANSISTOR ILLUSTRATION E C B E C B E C B B C E 2SB1370 KTA1266GR 2SC3331(T/U) CSC4115BC KTC3198GR CD1585BC CSA952K 2SA933S E C B S D G DTC114ES 2SJ460 2SK2158 KRA102S 2SA1235F KRA107S KTC3199GR 2SK2541...
  • Page 11 All manuals and user guides at all-guides.com FL (HNA-11MM30) GRID ASSIGNMENT/ANODE CONNECTION GRID ASSIGNMENT ANODE CONNECTION...
  • Page 12 All manuals and user guides at all-guides.com WIRING-1 [MAIN C.B] IC991...
  • Page 13 All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM-1 [MAIN] (FUNCTION/AMP SECTION)
  • Page 14 All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM-2 [MAIN](TUNER SECTION) <V>...
  • Page 15 All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM-3 [FRONT, DECK] <HS>...
  • Page 16 All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM-4 [FRONT, DECK] <V>...
  • Page 17 All manuals and user guides at all-guides.com WIRING-2 [FRONT C.B] R410 R411 S432 S430 S434 S435 S401 S419,LED607 S402 S416,LED603 S403 S404 S410 S405 S408 DISC-3 DISC CHANGE DISC-1 DISC-2 VIDEO/AUX CLEAR TUNER TAPE CLOCK ENTER S431 S433 LED604 LED606 S418,LED608 S411 S417...
  • Page 18 All manuals and user guides at all-guides.com WIRING-4 [DECK C.B] <HS> SCHEMATIC DIAGRAM-5 [PT] WIRING-3 [PT C.B]...
  • Page 19 All manuals and user guides at all-guides.com WIRING-5 [DECK C.B] <V> DECK 2 DECK 1...

  • Page 20: Ic Block Diagram

    All manuals and user guides at all-guides.com IC BLOCK DIAGRAM IC, LA1843 IC, LC72131D...
  • Page 21 All manuals and user guides at all-guides.com IC, BA3835F IC, BU2092F...
  • Page 22 All manuals and user guides at all-guides.com IC, M61503FP...
  • Page 23 All manuals and user guides at all-guides.com IC DESCRIPTION IC, LC866548V-5P87 Pin No. Pin Name Description _______________ I-STEREO/I-DRF Stereo detected input/CD DRF input ______ I-IFC/I-SUBQ Tune IF count serial data input/CD SUBQ input O-2PB Deck 2 playback switch output _______ O-POWER System power supply ON/OFF output _______...
  • Page 24 All manuals and user guides at all-guides.com Pin No. Pin Name Description P22/PRO LOGIC FL SEGMENT output P22/PROLOGIC input to diode (not used) P21/RDS FL SEGMENT output P21/RDS input to diode P20/FM1 FL SEGMENT output P20/FM1 input to diode P19/SW FL SEGMENT output P19/SW input to diode P18/LW FL SEGMENT output P18/LW input to diode...
  • Page 25 All manuals and user guides at all-guides.com ADJUSTMENT < TUNER SECTION > 9. Head Azimuth Adjustment (DECK 1, DECK 2) 1. Clock frequency Check Settings : • Test tape : TTA–330 MAIN C.B Settings : • Test point : TP2 •...
  • Page 26 All manuals and user guides at all-guides.com MECHANICAL EXPLODED VIEW 1/1 AZG-1 ZA3RDM MAIN C.B BINDER WIRE HT-SINK HT-SINK PT C.B FRONT C.B HT-SINK HT-SINK CHAS,MAIN 6ZM-3 PR2NM <V> PLATE,EARTH MECH 2ZM-3MK2 PR4NM<HS>...

  • Page 27: Mechanical Main Parts List

    13 8A-NF8-048-010 PANEL,FR K<V> 46 8A-NF8-075-010 CABI,REAR HS W/O SPEC<HS> 14 8A-NF8-046-010 WINDOW,DISP H 46 8A-NF8-067-010 CABI,REAR VJSM<V> 15 87-CE3-023-010 BADGE,AIWA 30N SILV 47 8A-DB8-209-010 HLDR,PWB PT 16 8A-NF8-009-110 PANEL,CD 48 8A-NF8-008-010 PANEL,RIGHT V-2 17 8A-NF8-007-010 PANEL,LEFT V-2 49 87-NF4-221-010...
  • Page 28 All manuals and user guides at all-guides.com TAPE MECHANISM MAIN PARTS LIST 1/1 <HS: 2ZM-3MK2 PR4NM> REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 82-ZM3-301-610 1H CHAS ASSY,M2 31 82-ZM1-255-310 0E SPR-E,LVR DIR 2 82-ZM1-258-210 0E SPR-T,PINCH L 32 82-ZM3-305-210 0E GEAR,CAM M2 3 82-ZM1-341-210 1A LVR ASSY,PINCH L2 33 82-ZM1-227-310 0E LVR,TRIG...
  • Page 29 All manuals and user guides at all-guides.com TAPE MECHANISM EXPLODED VIEW 1/1 <HS: 2ZM-3MK2 PR4NM> PH(DECK 1) RPH(DECK 2) DECK C.B CUSH-G,DIA3.7-8-3.2 CUSH-G,DIA3.7-8-3.2 HLDR,IC HLDR,IC CAPSTAN N 2.2-41.7 CAPSTAN N 2.2-41.5 HEAD 1 C.B(DECK 1) BELT D2 HEAD 2 C.B(DECK 2) (DECK 1) (DECK 1) (DECK 2)
  • Page 30 All manuals and user guides at all-guides.com TAPE MECHANISM EXPLODED VIEW 1/1 <V: 6ZM-3 PR2NM> DECK C.B (DECK L SOL 2 only) SOL 1 (DECK L SIDE) (DECK R SIDE) LEVER EJECT R HEAD PLATE CAPSTAN N 2.2-41.7 SHLD M3 LEVER EJECT L CAPSTAN N 2-41.5 (DECK 2)
  • Page 31 All manuals and user guides at all-guides.com TAPE MECHANISM MAIN PARTS LIST 1/1 <V: 6ZM-3 PR2NM> REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 86-ZM3-215-010 1E CHAS ASSY,RS 41 82-ZM1-216-310 0E GEAR,REEL 2 86-ZM3-202-010 0E BASE,HEAD S 42 86-ZM3-213-010 0E S-SCREW,HLDR,MOT 3 3 86-ZM3-205-010 0E SPR-C,RPH S 43 82-ZM1-225-210 0E GEAR,FR...
  • Page 32 All manuals and user guides at all-guides.com SPEAKER DISASSEMBLY INSTRUCTIONS 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 ( –...

  • Page 33: Speaker Parts List

    3 8A-DS8-005-010 GRILLE,FRAME ASSY 4 8A-DS8-009-010 PROTECTOR, 5 88-NS5-610-010 CORD,SPKR 6 88-NS5-611-010 CORD,SPKR B/L 7 8Z-NSY-003-010 CORD,BUSH 8 88-NS3-029-010 CORD,BUSH L 9 8Z-NS7-602-010 SPKR, W 160 10 8Z-NSY-604-010 SPKR, M 100 11 8Z-NSY-608-010 SPKR, CERAMIC ASSY 12 8A-NSJ-006-010 BADGE,AIWA S35...
  • Page 34 All manuals and user guides at all-guides.com 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 920074 Printed in Singapore...

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