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Aiwa Z-L620 Service Manual

Cd stereo system
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3 7 63 1515 0
SERVICE MANUAL
TE
L 13942296513
COMPACT DISC STEREO
SYSTEM
Z–L620
• This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
Z-L620 (LH), (S/M Code No. 09-00B-439-4T1).
• If requiring information about the CD mechanism, see Service Manual of
BZG-5, (S/M Code No. 09-00C-353-3N2).
www
.
http://www.xiaoyu163.com
SYSTEM
CD
CASSEIVER
CX–ZL620
x
ao
u163
y
i
S/M Code No. 09-011-439-4R1
http://www.xiaoyu163.com
Z-L620
2 9
8
Q Q
3
6 7
1 3
1 5
BASIC TAPE MECHANISM : ZZM-3 PR1NM
BASIC CD MECHANISM : BZG-5 ZD3N1M
SPEAKER
SX–WZL620
co
.
LH
9 4
2 8
0 5
8
2 9
9 4
2 8
REMOTE
CONTROLLER
RC–ZAS02
m
9 9
9 9

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Summary of Contents for Aiwa Z-L620

  • Page 1 CX–ZL620 SX–WZL620 RC–ZAS02 • This Service Manual is the "Revision Publishing" and replaces "Simple Manual" Z-L620 (LH), (S/M Code No. 09-00B-439-4T1). • If requiring information about the CD mechanism, see Service Manual of BZG-5, (S/M Code No. 09-00C-353-3N2). u163 S/M Code No. 09-011-439-4R1...

  • Page 2: Specifications

    http://www.xiaoyu163.com SPECIFICATIONS 3 7 63 1515 0 <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 85 dB (1 kHz, 0 dB) Harmonic distortion...
  • Page 3 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 CAUTION 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

    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-A12-317-080 C-CAP,U 0.1-50 Z F 87-016-520-000 CAP,E 3300-65 M SMG 8B-MA5-651-010 C-IC,LC876572 87-016-520-000 CAP,E 3300-65 M SMG 87-A21-419-040 C-IC,NJM14558MD-TE2 87-A10-520-000 CAP,E 3300-35 M SMG...
  • Page 7 http://www.xiaoyu163.com 3 7 63 1515 0 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C315 87-A12-062-080 CAP,E 100-10 SMG C801 87-A12-089-080 CAP,E 3.3-50 SMG C317 87-A12-085-080 CAP,E 0.33-50 SMG C802 87-010-829-080 CAP, U 0.047-16 C318 87-A12-085-080 CAP,E 0.33-50 SMG C803 87-010-787-080...
  • Page 8 http://www.xiaoyu163.com 3 7 63 1515 0 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION FFC602 88-906-321-110 FF-CABLE,6P 1.25 320MM C311 87-010-405-040 CAP,E 10-50 J201 87-A61-480-010 JACK,DIA6.3 BLK ST W/SW MSC16A C411 87-012-157-080 C-CAP,S 330P-50 CH J203 87-A60-238-010 TERMINAL,SP 4P (MSC) C412...
  • Page 9 http://www.xiaoyu163.com 3 7 63 1515 0 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION S753 87-A90-095-080 SW,TACT EVQ11G04M S754 87-A90-095-080 SW,TACT EVQ11G04M S755 87-A90-095-080 SW,TACT EVQ11G04M FAN C.B C501 87-010-401-080 CAP, ELECT 1-50V C502 87-010-374-080 CAP, ELECT 47-10V C503 87-010-380-080 CAP, ELECT 47-16V...
  • Page 10 http://www.xiaoyu163.com TRANSISTOR ILLUSTRATION 3 7 63 1515 0 E C B E C B B C E G D S 2SA1981Y 2SK2937 KTA1266GR FN1016 2SA1979O/Y KTC3198GR FP1016 2SC5343G CSC4115BC CDA1585BC CC5551 S D G B C E E C B 2SJ460 2SB1237(Q) CSB1370EF...
  • Page 11 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 – 11 – http://www.xiaoyu163.com...
  • Page 12 http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 1 (MAIN 1 / 2 : AMP SECTION) 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 – 12 – http://www.xiaoyu163.com...
  • Page 13 http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 2 (MAIN 2 / 2 : TUNER SECTION) 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 – http://www.xiaoyu163.com...
  • Page 14 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 – 14 – http://www.xiaoyu163.com...
  • Page 15 http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 3 (FRONT / DECK) 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 – 15 – http://www.xiaoyu163.com...
  • Page 16 http://www.xiaoyu163.com WIRING – 3 (KEY CD / FAN) 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 – http://www.xiaoyu163.com...
  • Page 17 http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 4 (KEY CD / FAN) 3 7 63 1515 0 L 13942296513 u163 – 17 – http://www.xiaoyu163.com...
  • Page 18 http://www.xiaoyu163.com WIRING – 4 (PT) 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 SCHEMATIC DIAGRAM – 5 (PT) 3 7 63 1515 0 L 13942296513 u163 – 19 – http://www.xiaoyu163.com...
  • Page 20 http://www.xiaoyu163.com WIRING – 5 (DECK) 3 7 6 3 1 5 1 5 0 TO FRONT C. B CN104 (FFC104) F DECK C . B 11 9 7 5 3 1 10 8 6 4 2 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 –...
  • Page 21 http://www.xiaoyu163.com IC DESCRIPTION IC, LC876572 3 7 63 1515 0 Description Pin No. Pin Name M-CLK Common serial clock. M-DATA Common serial data. TU-ON Tuner supply control. H: ON. O-PLL-CE Tuner PLL IC chip enable. CD dish LED5. L: ON. BIAS Recording bias control.
  • Page 22 http://www.xiaoyu163.com 3 7 63 1515 0 Description Pin No. Pin Name P24/ECO FL segment P24 output/ECO setting switching input. H: ECO mode off. 60 ~ 63 P23 ~ P20 FL segment P23 ~ P20 output. P19/CST2 FL segment P19 output/Deck 2 cassette detection. L: YES. FL segment P18 output.
  • Page 23 http://www.xiaoyu163.com IC BLOCK DIAGRAM 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 – 23 – http://www.xiaoyu163.com...
  • Page 24 http://www.xiaoyu163.com FL (BJ823GNK) GRID ASSIGNMENT & PIN CONNECTION & ANODE CONNECTION GRID ASSIGNMENT PIN CONNECTION 3 7 6 3 1 5 1 5 0 ANODE CONNECTION 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 –...
  • Page 25 http://www.xiaoyu163.com ADJUSTMENT < TUNER / DECK / FRONT > < TUNER SECTION > 3 7 63 1515 0 1. Clock Frequency Check Settings : • Test point : TP2 (CLK) 7. DC Balance / Mono Distortion Adjustment Method : Set to AM 1710 kHz and check that the test point is Settings : •...
  • Page 26 http://www.xiaoyu163.com < DECK SECTION > 3 7 63 1515 0 10. Tape Speed Adjustment (DECK 2) 15. REC/PB Sensitivity Check (DECK 2) Settings : • Test tape : TTA–100 Settings : • Test tape : TTA–602 • Test point : TP8(Lch), TP9(Rch) •...
  • Page 27 http://www.xiaoyu163.com CD TEST MODE 3 7 63 1515 0 1. How to Activate CD Test Mode While pressing and holding the function button, insert the AC plug. When the test mode starts, the message, “TEST” appears on the display. 2. How to Cancel CD Test Mode Press the POWER button or remove the AC plug.
  • Page 28 http://www.xiaoyu163.com MECHANICAL EXPLODED VIEW 1 / 1 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 – 28 – http://www.xiaoyu163.com...

  • Page 29: Color Name Table

    HLDR,TR A3 6 8B-MA5-050-010 WINDOW,DISP A5 36 8A-DB8-209-010 HLDR,PWB PT 7 87-NF4-216-010 HLDR,LOCK 1 37 88-MA1-208-210 JOINT,CABI 8 87-B00-002-010 BADGE,AIWA 30 ABS SIL 38 8B-MA5-011-010 CABI,REAR LH A5 9 87-NF8-220-010 DMPR,150 39 8B-MA3-202-010 HLDR,HT-SINK 10 86-NF9-224-010 SPR-C,LOCK 40 87-A91-736-010 FAN,DSB0812M-S382 -300MM...
  • Page 30 http://www.xiaoyu163.com TAPE MECHANISM EXPLODED VIEW 1 / 1 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 w w w u 1 6 3 –...
  • Page 31 http://www.xiaoyu163.com TAPE MECHANISM PARTS LIST 1 / 1 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 87-A90-403-110 HEAD,RPH MS15R 87-045-347-010 MOT,SHU2L 70 87-A90-404-010...
  • Page 32 http://www.xiaoyu163.com GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS (FOR REFERENCE) 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.
  • Page 33 http://www.xiaoyu163.com SPEAKER PARTS LIST SX-WZL620 (YLSL) 3 7 63 1515 0 REF. NO. PART NO. KANRI DESCRIPTION 1 8B-MS3-015-010 PANEL,FR A 2 8B-MS3-004-010 PANEL,TW A 3 8B-MS3-005-010 PANEL,TW B 4 8B-MS3-006-010 PANEL,DUCT A 5 8B-MS3-007-010 PANEL,DUCT B 6 8B-MS3-008-010 PANEL,DUCT C 7 8B-MS3-009-010 PROTECTOR,SQ 8 88-NS5-610-010...
  • Page 34 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 2000075 9630472 0251431 Printed in Singapore http://www.xiaoyu163.com...