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Aiwa NSX-AJ50 U Service Manual

Compact disc stereo system
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3 7 63 1515 0
SERVICE MANUAL
TE
L 13942296513
COMPACT DISC STEREO
• This Service Manual is the "Revision Publishing" and replaces "Simple Manual",
• If requiring information about the CD mechanism, see Service Manual
www
.
http://www.xiaoyu163.com
SYSTEM
CD
SYSTEM
CASSEIVER
NSX-AJ50
CX-NAJ50
NSX-SZ50
CX-NSZ50
(S/M Code No. 09-99C-424-6T1).
of AZG-1, (S/M Code No. 09-001-335-3N6).
x
ao
y
i
S/M Code No. 09-003-424-6R1
http://www.xiaoyu163.com
NSX-AJ50
8
NSX-SZ50
Q Q
3
6 7
1 3
BASIC TAPE MECHANISM : ZZM-3 PR1NM
BASIC CD MECHANISM : AZG-1 ZD8RDM
SPEAKER
SX-WNAJ50
SX-WNSZ50
u163
.
U
2 9
9 4
2 8
LH
1 5
0 5
8
2 9
9 4
2ZM-3MK2 PR4NM
REMOTE
CONTROLLER
RC-ZAS02
RC-ZAS01
m
co
9 9
2 8
9 9

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Summary of Contents for Aiwa NSX-AJ50 U

  • Page 1 http://www.xiaoyu163.com NSX-AJ50 3 7 63 1515 0 NSX-SZ50 SERVICE MANUAL L 13942296513 BASIC TAPE MECHANISM : ZZM-3 PR1NM COMPACT DISC STEREO 2ZM-3MK2 PR4NM SYSTEM BASIC CD MECHANISM : AZG-1 ZD8RDM REMOTE SPEAKER SYSTEM CASSEIVER CONTROLLER SX-WNAJ50 RC-ZAS02 NSX-AJ50 CX-NAJ50 SX-WNSZ50 RC-ZAS01 NSX-SZ50 CX-NSZ50...

  • Page 2: Specifications

    http://www.xiaoyu163.com SPECIFICATIONS 3 7 63 1515 0 Main unit CX-NAJ50(U)/CX-NSZ50(LH) <FM tuner section> <Compact disc player section> Tuning range 87.5 MHz to 108 MHz Laser Semiconductor laser (λ = 780 nm) Usable sensitivity (IHF) 13.2 dBf D-A converter 1 bit dual Antenna terminals 75 ohms (unbalanced) Signal-to-noise ratio...

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

    http://www.xiaoyu163.com PROTECTION OF EYES FROM LASER BEAM DURING SERVICING 3 7 63 1515 0 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

    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 3 7 63 1515 0 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

    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 87-012-368-080 C-CAP,S 0.1-50 F 87-012-368-080 C-CAP,S 0.1-50 F 87-A21-417-010 IC,STK490-310 87-012-368-080 C-CAP,S 0.1-50 F 8A-NF8-610-010 C-IC,LC866548V-5P03 87-016-520-000 CAP,E 3300-65 M SMG 87-A21-396-010 IC,STK490-040 87-016-520-000...
  • Page 7 http://www.xiaoyu163.com 3 7 63 1515 0 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C317 87-010-546-080 CAP, ELECT 0.33-50V C784 87-010-197-080 CAP, CHIP 0.01 DM C318 87-010-546-080 CAP, ELECT 0.33-50V C785 87-010-197-080 CAP, CHIP 0.01 DM C326 87-010-198-080 CAP, CHIP 0.022...
  • Page 8 http://www.xiaoyu163.com 3 7 63 1515 0 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION J204 87-A61-153-010 JACK,PIN 4P R/W(BL) (SEPA) KM<U> C339 87-012-156-080 C-CAP,S 220P-50 CH J205 87-A61-157-010 JACK,PIN 2P R/W/BL V(SEPA) KM<LH> C340 87-010-197-080 CAP, CHIP 0.01 DM J602 87-A60-881-010 JACK,PIN 2P MSP 242V05 PBSN...
  • Page 9 http://www.xiaoyu163.com 3 7 63 1515 0 REF. NO. PART NO. KANRI DESCRIPTION S434 87-A91-024-180 SW,TACT KSH0611BT S435 87-A91-024-180 SW,TACT KSH0611BT SW252 87-A91-555-010 SW,RTRY EC12E24504 SW253 87-A91-542-010 SW,RTRY EC12E12504 VR501 86-NFA-607-010 VR,RTRY 10K15AX1 1 V XV0121PVN<LH> PT C.B 87-010-387-080 CAP,E 470-25 SME 87-010-403-040 CAP,E 3.3-50 SME 87-A61-122-010...
  • Page 10 http://www.xiaoyu163.com TRANSISTOR ILLUSTRATION 3 7 63 1515 0 E C B E C B E C B B C E 2SB1370 KTA1266GR 2SC3331(T/U) CSC4115BC KTC3198GR CD1585BC CSA952K E C B S D G DTC114ES 2SJ460 2SK2158 2SA1235F RT1N441C KTC3199GR 2SK2541 2SJ461-T1 RT1N141C 2SC3052F...
  • Page 11 http://www.xiaoyu163.com FL (HNA-11MM30) GRID ASSIGNMENT / ANODE CONNECTION 3 7 63 1515 0 GRID ASSIGNMENT L 13942296513 u163 – 11 – http://www.xiaoyu163.com...
  • Page 12 http://www.xiaoyu163.com 3 7 63 1515 0 ANODE CONNECTION L 13942296513 u163 – 12 – http://www.xiaoyu163.com...
  • Page 13 http://www.xiaoyu163.com WIRING - 1 (MAIN) 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 – 13 –...
  • Page 14 http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 1 (MAIN 1 / 2 : AMP) 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 – 14 – http://www.xiaoyu163.com...
  • Page 15 http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 2 (MAIN 2 / 2 : TUNER) 3 7 6 3 1 5 1 5 0 (VT) 1 3 9 4 2 2 9 6 5 1 3 TP3, 4 (DC BALANCE) w w w u 1 6 3 –...
  • Page 16 http://www.xiaoyu163.com WIRING - 2 (FRONT) 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 – 16 –...
  • Page 17 http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 3 (FRONT)<U> 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 – 17 – http://www.xiaoyu163.com...
  • Page 18 http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 4 (FRONT)<LH> 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 – 18 – http://www.xiaoyu163.com...
  • Page 19 http://www.xiaoyu163.com WIRING - 3 (PT) <U> 3 7 63 1515 0 CNA001 L 13942296513 u163 – 19 –...
  • Page 20 http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 5 (PT) <U> 3 7 63 1515 0 CNA001 L 13942296513 u163 – 20 – http://www.xiaoyu163.com...
  • Page 21 http://www.xiaoyu163.com WIRING - 4 (PT) <LH> 3 7 63 1515 0 CNA001 L 13942296513 u163 – 21 –...
  • Page 22 http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 6 (PT) <LH> 3 7 63 1515 0 CNA001 L 13942296513 u163 – 22 – http://www.xiaoyu163.com...
  • Page 23 http://www.xiaoyu163.com WIRING - 5 (DECK) <U> 3 7 63 1515 0 L 13942296513 u163 – 23 –...
  • Page 24 http://www.xiaoyu163.com WIRING - 6 (DECK) <LH> 3 7 63 1515 0 L 13942296513 u163 – 24 –...
  • Page 25 http://www.xiaoyu163.com IC BLOCK DIAGRAM 3 7 63 1515 0 IC, LA1843 L 13942296513 IC, LC72131D u163 – 25 – http://www.xiaoyu163.com...
  • Page 26 http://www.xiaoyu163.com 3 7 63 1515 0 IC, BA3835F L 13942296513 IC, BU2092F u163 – 26 – http://www.xiaoyu163.com...
  • Page 27 http://www.xiaoyu163.com 3 7 63 1515 0 IC, M61503FP L 13942296513 u163 – 27 – http://www.xiaoyu163.com...
  • Page 28 http://www.xiaoyu163.com IC DESCRIPTION IC, LC866548V-5P03 3 7 63 1515 0 Pin Name Description Pin No. 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 DECK2 playback switch output. O-POWER System power supply ON/OFF output.
  • Page 29 http://www.xiaoyu163.com Pin Name Description Pin No. 3 7 63 1515 0 P21/RDS FL segment output P21 / RDS input to diode (Not used). P20/FM1 FL segment output P20 / FM1 input to diode (Not used). P19/SW FL segment output P19 / SW input to diode (Not used). P18/LW FL segment output P18 / LW input to diode (Not used).
  • Page 30 http://www.xiaoyu163.com ADJUSTMENT <TUNER / DECK / FRONT> 3 7 63 1515 0 MAIN C.B L802 L801 IC801 TP4 (DC BALANCE) SFR451 SFR452 TP3 (DC BALANCE) L951 TP2 (CLK) (3/3) (1/3) TP8 (RCH) TP9 (LCH) TP1 (VT) FFE831 (LH) DECK–1 P HEAD DECK–1 P HEAD DECK–2 R/P/E HEAD DECK–2 R/P/E HEAD...
  • Page 31 http://www.xiaoyu163.com < TUNER SECTION > 10. PB Frequency Response Check (DECK 1, DECK 2) 3 7 63 1515 0 Settings : • Test tape : TTA–300 1. Clock frequency Check • Test point :TP8(Lch), TP9(Rch) Settings : • Test point : TP2 Method : Play back the 315Hz and 8kHz signals of the test Method : Set to AM 1710kHz and check that the test point is tape and check that the output ratio of the 8kHz...
  • Page 32 http://www.xiaoyu163.com MECHANICAL EXPLODED VIEW 1 / 1 3 7 6 3 1 5 1 5 0 AZG-1 ZD8RDM P.C.B FL401 1 3 9 4 2 2 9 6 5 1 3 P.C.B CHAS,MAIN w w w u 1 6 3 ZZM-3 PR1NM <U>...
  • Page 33 8A-NF8-013-010 PANEL,FR U<U> 8A-DB8-209-010 HLDR,PWB PT 8A-NF8-046-010 WINDOW,DISP H<LH> 8A-NF8-605-010 PT,ANF-8 LH<LH> 8A-NF8-012-010 WINDOW,DISP U<U> 8A-NF8-604-010 PT,ANF-8 U<U> 87-CE3-023-010 BADGE,AIWA 30N SILV 87-NF4-221-010 HLDR,CABLE 8A-NF8-009-010 PANEL,CD 87-085-185-010 BUSHING, AC CORD (E)<LH> 8A-NF8-007-010 PANEL,LEFT V-2 87-A91-422-010 BUSHING,AC CORD(U)<U> 8A-NF8-005-010 PANEL,TOP 87-A80-092-010 AC CORD ASSY,E BLK SUN FAI<LH>...
  • Page 34 http://www.xiaoyu163.com TAPE MECHANISM EXPLODED VIEW 1 / 1 < U : ZZM-3 PR1NM > 3 7 6 3 1 5 1 5 0 TERMINAL, TERMINAL,LB1 IC, EW732 1 3 9 4 2 2 9 6 5 1 3 IC, EW732 P.C.B w w w u 1 6 3...
  • Page 35 http://www.xiaoyu163.com TAPE MECHANISM PARTS LIST 1 / 1 < U: ZZM-3 PR1NM > 3 7 63 1515 0 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...
  • Page 36 http://www.xiaoyu163.com TAPE MECHANISM EXPLODED VIEW 1 / 1 < LH : 2ZM-3MK2 PR4NM > 3 7 6 3 1 5 1 5 0 PH(DECK 1) RPH(DECK 2) DECK C.B SOL 2 SOL 1 (DECK 2) (DECK 1) 1 3 9 4 2 2 9 6 5 1 3 HEAD 1 C.B(DECK 1) HEAD 2 C.B(DECK 2) (DECK 1)
  • Page 37 http://www.xiaoyu163.com TAPE MECHANISM PARTS LIST 1 / 1 < LH: 2ZM-3MK2 PR4NM > 3 7 63 1515 0 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 1 82-ZM3-301-519 CHAS ASSY,M2 36 82-ZM1-236-019 CAPSTAN N 2-41.5 2 82-ZM1-258-110 SPR-T,PINCH L 37 82-ZM1-239-019 CAPSTAN N 2.2-41.7...
  • Page 38 http://www.xiaoyu163.com SPEAKER DISASSEMBLY INSTRUCTIONS 3 7 63 1515 0 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 39 http://www.xiaoyu163.com SPEAKER PARTS LIST SX-WNAJ50 (YUSL), SX-WNAJ50 (YLSL) 3 7 63 1515 0 REF. NO. PART NO. KANRI DESCRIPTION 1 8A-NS8-009-010 PANEL,FR U<YUSL> 1 8A-DS8-001-010 PANEL,FR<YLSL> 2 8A-DS8-004-010 PANEL,DUCT 3 8A-NS8-006-010 GRILLE,FRAME ASSY U<YUSL> 3 8A-DS8-005-010 GRILLE,FRAME ASSY <YLSL> 4 8A-DS8-009-010 PROTECTOR 5 88-NS5-610-010 CORD,SPKR...
  • Page 40 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 9820527 0251431 Printed in Singapore http://www.xiaoyu163.com...

This manual is also suitable for:

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