Aiwa NSX-SZ50 Service Manual
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Aiwa NSX-SZ50 Service Manual

Aiwa NSX-SZ50 Service Manual

Compact disc/ stereo cassette receiver
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3 7 63 1515 0
SERVICE MANUAL
TE
L 13942296513
COMPACT DISC/
STEREO CASSETTE RECEIVER
SYSTEM
NSX–SZ50
NSX–SZ52
• This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
NSX-SZ50 <EZ,K,HA> & NSX-SZ52<EZ> (S/M Code No. 09-002-424-6T2).
• If requiring information about the CD mechanism, see Service Manual of AZG-1,
(S/M Code No. 09-001-335-3N6).
www
.
http://www.xiaoyu163.com
CD
CASSEIVER
CX–NSZ50
CX–NSZ52
x
ao
u163
y
i
S/M Code No. 09-004-424-6R4
http://www.xiaoyu163.com
NSX-SZ50
2 9
8
NSX-SZ52
Q Q
3
6 7
1 3
1 5
BASIC TAPE MECHANISM : 2ZM-3MK2 PR4NM(HA)
BASIC TAPE MECHANISM : 6ZM-3 PR2NM(K/EZ)
BASIC CD MECHANISM : AZG-1 YZD8RDM(K)
BASIC CD MECHANISM : AZG-1 ZD8RDM(EZ/HA)
SPEAKER
SX–WNSZ50
SX–WNSZ52
co
.
EZ,K,HA
9 4
2 8
EZ
0 5
8
2 9
9 4
2 8
REMOTE
CONTROLLER
RC–ZAS01
RC–ZAS01
m
9 9
9 9

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  • Page 1 NSX–SZ52 CX–NSZ52 • This Service Manual is the "Revision Publishing" and replaces "Simple Manual" NSX-SZ50 <EZ,K,HA> & NSX-SZ52<EZ> (S/M Code No. 09-002-424-6T2). • If requiring information about the CD mechanism, see Service Manual of AZG-1, (S/M Code No. 09-001-335-3N6). u163 S/M Code No.

  • Page 2: Specifications

    http://www.xiaoyu163.com SPECIFICATIONS 3 7 63 1515 0 Main unit CX-NSZ50, CX-NSZ52 FM tuner section Cassette deck section Tuning range 87.5 MHz to 108 MHz Track format 4 tracks, 2 channels stereo Usable sensitivity (IHF) 16.8 dBf <EZ, K> Frequency response 50 Hz –...
  • Page 3 http://www.xiaoyu163.com PROTECTION OF EYES FROM LASER BEAM DURING SERVICING This set employs laser. Therefore, be sure to follow carefully the CAUTION 3 7 63 1515 0 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 http://www.xiaoyu163.com NOTE ON BEFORE STARTING REPAIR 1. Forced discharge of electrolytic capacitor of power supply block 3 7 63 1515 0 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 http://www.xiaoyu163.com In such a case, check also if the POWER AMPLIFIER circuit or power supply circuit has any abnormalities or not. 3 7 63 1515 0 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 http://www.xiaoyu163.com ELECTRICAL MAIN PARTS LIST 3 7 63 1515 0 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C0003 87-012-368-080 C-CAP,S 0.1-50 Z F C0004 87-012-368-080 C-CAP,S 0.1-50 Z F 87-020-454-010 IC,DN6851 C0005 87-012-368-080 C-CAP,S 0.1-50 Z F 87-A21-417-010 IC,STK490-310 C0006...
  • Page 7 http://www.xiaoyu163.com 3 7 63 1515 0 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C0229 87-010-196-080 C-CAP,S 0.1-25 Z F C2012 C0612 87-010-545-080 CAP,E 0.22-50 M 11L SME C0230 87-010-196-080 C-CAP,S 0.1-25 Z F C2012 C0613 87-010-545-080 CAP,E 0.22-50 M 11L SME C0231...
  • Page 8 http://www.xiaoyu163.com 3 7 63 1515 0 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C0858 87-010-196-080 C-CAP,S 0.1-25 Z F C2012 L0202 87-003-383-010 COIL,1UH K C0859 87-010-196-080 C-CAP,S 0.1-25 Z F C2012 L0451 87-007-342-010 COIL,OSC 85KHZ BIAS C0860 87-010-197-080 C-CAP,S 0.01-25 K B C2012...
  • Page 9 http://www.xiaoyu163.com 3 7 63 1515 0 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C0339 87-012-156-080 C-CAP,S 220P-50 J CH GRM S0425 87-A91-024-180 SW,TACT KSHG611BT C0340 87-010-197-080 C-CAP,S 0.01-25 K B C2012 S0426 87-A91-024-180 SW,TACT KSHG611BT C0341 87-010-194-080 C-CAP,S 0.047-25 Z F...
  • Page 10 http://www.xiaoyu163.com CHIP RESISTOR PART CODE 3 7 63 1515 0 Chip Resistor Part Coding Figure Resistor Code Value of resistor Chip resistor Dimensions (mm) Wattage Type Tolerance Symbol Resistor Code Form 1/16W 1005 0.35 1/16W 1608 0.45 1/10W 2125 1.25 0.45 1/8W 3216...
  • Page 11 http://www.xiaoyu163.com FL (HNA-11MM30) GRID ASSIGNMENT/ANODE CONNECTION 3 7 6 3 1 5 1 5 0 GRID ASSIGNMENT ANODE CONNECTION 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
  • Page 12 http://www.xiaoyu163.com WIRING-1 [MAIN C.B] <50EZ/50HA/52EZ> 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 Note: <50/52EZ> : CX-NSZ50EZ, 52EZ <HA> : CX-NSZ50HA w w w u 1 6 3 http://www.xiaoyu163.com...
  • Page 13 http://www.xiaoyu163.com SCHEMATIC DIAGRAM-1 [TUNER SECTION] <50K/50EZ/52EZ> 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
  • Page 14 http://www.xiaoyu163.com WIRING-2 [MAIN C.B] <50K> 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 R606 w w w u 1 6 3 http://www.xiaoyu163.com...
  • Page 15 http://www.xiaoyu163.com SCHEMATIC DIAGRAM-2 [TUNER SECTION] <50HA> 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
  • Page 16 http://www.xiaoyu163.com SCHEMATIC DIAGRAM-3 [FUNCTION/AMP SECTION] 3 7 6 3 1 5 1 5 0 <EZ, K> 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
  • Page 17 http://www.xiaoyu163.com SCHEMATIC DIAGRAM-4 [FRONT SECTION] <50HA> 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
  • Page 18 http://www.xiaoyu163.com SCHEMATIC DIAGRAM-5 [FRONT SECTION] <50EZ/52EZ> 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
  • Page 19 http://www.xiaoyu163.com WIRING-3 [FRONT C.B] <50EZ/50HA/52EZ> 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 Note: <50/52EZ> : CX-NSZ50EZ, 52EZ <HA> : CX-NSZ50HA w w w u 1 6 3 http://www.xiaoyu163.com...
  • Page 20 http://www.xiaoyu163.com SCHEMATIC DIAGRAM-6 [FRONT SECTION] <50K> 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
  • Page 21 http://www.xiaoyu163.com WIRING-4 [FRONT C.B] <50K> 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
  • Page 22 http://www.xiaoyu163.com SCHEMATIC DIAGRAM-7 [PT SECTION] <50HA> WIRING-6 [DECK C.B] <50HA> 3 7 6 3 1 5 1 5 0 WIRING-5 [PT C.B] <50HA> 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
  • Page 23 http://www.xiaoyu163.com SCHEMATIC DIAGRAM-8 [PT SECTION] <50K/50EZ/52EZ> WIRING-8 [DECK C.B] <50K/50EZ/52EZ> 3 7 6 3 1 5 1 5 0 WIRING-7 [PT C.B] <50K/50EZ/52EZ> 1 3 9 4 2 2 9 6 5 1 3 DECK 2 DECK 1 w w w u 1 6 3 http://www.xiaoyu163.com...
  • Page 24 http://www.xiaoyu163.com IC BLOCK DIAGRAM IC, LA1843 IC, BA3835F IC, BU2092F 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 IC, LC72131D IC, M61503FP w w w u 1 6 3 http://www.xiaoyu163.com...
  • Page 25 http://www.xiaoyu163.com IC DESCRIPTION IC, LC866548V-5P03 <50HA, 50EZ>, LC866548V-**** <50K>, LC866560W-5P19 <52EZ> 3 7 6 3 1 5 1 5 0 Pin No. Pin Name Description Pin No. Pin Name Description _______________ I-STEREO/I-DRF Stereo detected input/CD DRF input P22/PRO LOGIC FL SEGMENT output P22/PROLOGIC input to diode (not used) ______ I-IFC/I-SUBQ Tune IF count serial data input/CD SUBQ input...
  • Page 26 http://www.xiaoyu163.com ADJUSTMENT <50HA> < TUNER SECTION > 10. PB Frequency Response Check (DECK 1, DECK 2) 3 7 6 3 1 5 1 5 0 MAIN C.B 1. Clock frequency Check Settings : • Test tape : TTA–300 Settings : • Test point : TP2 •...
  • Page 27 http://www.xiaoyu163.com ADJUSTMENT <50K/50EZ/52EZ> < TUNER SECTION > < DECK SECTION > 3 7 6 3 1 5 1 5 0 1. Clock frequency Check 10. Tape Speed Adjustment (DECK 2) MAIN C.B Settings : • Test point : TP2 Settings : • Test tape : TTA–100 Method : Set to AM 1602kHz and check that the test point is •...
  • Page 28 http://www.xiaoyu163.com MECHANICAL EXPLODED VIEW 1/1 3 7 6 3 1 5 1 5 0 AZG-1 MAIN C.B HT-SINK FL101 PT C.B 1 3 9 4 2 2 9 6 5 1 3 FRONT C.B HT-SINK FIN1 HT-SINK FIN2 CHAS,MAIN 6ZM-3 PLATE,EARTH MECH w w w u 1 6 3...
  • Page 29 WINDOW,DISP E<52EZSM> 87-085-185-010 BUSHING, AC CORD (E) 87-A80-105-010 AC CORD ASSY,AZ<50HASM> 8A-NF8-046-010 WINDOW,DISP H<50EZSM,50HASM> 87-A80-143-010 AC CORD ASSY,E BLK<50KSE> 87-CE3-023-010 BADGE,AIWA 30N SILV 87-A80-092-010 AC CORD ASSY,E BLK SUN FAI <50EZSM,50HASM,52EZSM> <EXCEPT 50KSE,50HASM> 8A-NF8-009-010 PANEL,CD<50EZSM,50HASM,52EZSM> 8Z-NB8-240-010 COVER, PL 8A-NF8-007-010 PANEL,LEFT V-2...
  • Page 30 http://www.xiaoyu163.com TAPE MECHANISM MAIN PARTS LIST 1/1 <50HA: 2ZM-3MK2 PR4NM> 3 7 63 1515 0 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 31 http://www.xiaoyu163.com TAPE MECHANISM EXPLODED VIEW 1/1 <50HA: 2ZM-3MK2 PR4NM> 3 7 6 3 1 5 1 5 0 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 1 3 9 4 2 2 9 6 5 1 3 CAPSTAN N 2.2-41.5 HEAD 1 C.B(DECK 1) BELT D2...
  • Page 32 http://www.xiaoyu163.com TAPE MECHANISM EXPLODED VIEW 1/1 <50EZ/50K/52EZ: 6ZM-3 PR2NM> 3 7 6 3 1 5 1 5 0 DECK C.B SOL 2 (DECK L only) SOL 1 (DECK L SIDE) (DECK R SIDE) LEVER EJECT R 1 3 9 4 2 2 9 6 5 1 3 HEAD PLATE CAPSTAN N 2.2-41.7...
  • Page 33 http://www.xiaoyu163.com TAPE MECHANISM MAIN PARTS LIST 1/1 <50EZ/50K/52EZ: 6ZM-3 PR2NM> 3 7 63 1515 0 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 34 http://www.xiaoyu163.com SPEAKER DISASSEMBLY INSTRUCTIONS 3 7 63 1515 0 Type.4 Type.1 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 35 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 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 36 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 920074 Printed in Singapore http://www.xiaoyu163.com...

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