aiwa Z-L620 Compact Disc Stereo System User Manual

June 17, 2024
Aiwa

aiwa Z-L620 Compact Disc Stereo System

SYSTEM

| CD CASSEIVER|

SPEAKER

| REMOTE CONTROLLER
---|---|---|---
Z–L620| 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).

SPECIFICATIONS

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-30

PROTECTION OF EYES FROM LASER BEAM DURING SERVICING

This set employs a laser. Therefore, be sure to follow carefully the instructions below when servicing.

WARNING!
WHEN SERVICING, DO NOT APPROACH THE LASER EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS NECESSARY TO CONFIRM LASER BEAM EMISSION.
BE SURE TO OBSERVE FROM A DISTANCE OF MORE THAN 30cm FROM THE SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL PICK-UP BLOCK.

Caution: Invisible laser radiation when open and interlocks defeated avoid exposure to beam.

Precaution to replace Optical block
(KSS-213F)
Body or clothes electrostatic potential could ruin the laser diode in the optical block. Be sure to ground the body and workbench, and use care the clothes do not touch the diode.

  1. After the connection, remove the solder shown in the right figure.

CAUTION
Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

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 a relay circuit in the power supply block, an electric potential is kept charged across the electrolytic capacitors (C101, 102) even though the AC power cord is removed. If repair is attempted in this condition, a secondary defect can occur.
To prevent secondary trouble, perform the following measures before starting repair work.

Discharge procedure

  1. Remove the AC power cord.
  2. Connect a discharging resistor at an end of the lead wire that has clips at both ends. Connect the other end of the lead wire to the metal chassis.
  3. Contact the other end of the discharging resistor to the positive (+) side (+VH) of C101. (For two seconds)
  4. Contact the same end of the discharging resistor as a step
    • to the negative (-) side (-VH) of C102 in the same way. (For two seconds)
  5. Check that voltage across C101 and C102 has decreased to 1 V or less using a multimeter or an oscilloscope.

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-3

Select a discharging resistor referring to the following table.

Charging voltage (V)

(C101, 102)

| Discharging

resistor (W)

|

Rated power (W)

|

Parts number

---|---|---|---
25-48| 100| 3| 87-A00-247-090
49-140| 220| 5| 87-A00-232-090

Note: The reference numbers (C101, C102) of the electrolytic capacitors can change depending on the models. Be sure to check the reference numbers of the charging capacitors on the schematic diagram before starting the discharging work.

Check items before exchanging the MICROCOMPUTER
Be sure to check the following items before exchanging the MICROCOMPUTER. Exchange the MICROCOMPUTER after confirming that the MICROCOMPUTER is surely defective.

Regarding the HOLD terminal of the MICROCOMPUTER
When the HOLD terminal (INPUT) of the MICROCOMPUTER is “H”, the MICROCOMPUTER is judged to be operating correctly.
When this terminal is “L”, the main power cannot be turned on. Therefore, be sure to check the terminal voltage of the HOLD terminal before exchange.
When the MICROCOMPUTER is not defective, the HOLD terminal can also go “L” when the POWER AMPLIFIER has any abnormalities that trigger the abnormality detection circuit on the MAIN C. B. that sets the HOLD terminal to “L”.

Good or no good judgment of the MICROCOMPUTER

  1. Turn on the AC main power.
  2. Confirm that the main power is turned on and the HOLD terminal of the MICROCOMPUTER keeps the “H” level or not.
  3. When the HOLD terminal is “L” level, the abnormality detection circuit is judged to be working correctly and the MICROCOMPUTER is judged to be good.

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-4

  • In such a case, check also if the POWER AMPLIFIER circuit or power supply circuit has any abnormalities or not.

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.
When the above-described phenomenon occurs, it can lead to wrong judgment as if the MICROCOMPUTER is defective and to exchange the MICROCOMPUTER. In such a case, perform the forced reset by the following procedure and check the good or no good of the MICROCOMPUTER.

  1. Remove the AC power cord.aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-5
  2. Short both ends of the electrolytic capacitor C113 that is connected to VDD of the MICROCOMPUTER with tweezers.
  3. Connect the AC power cord again. If the MICROCOMPUTER returns to normal operation, the MICROCOMPUTER is good.

Note: The reference number or MICROCOMPUTER PIN of the transistor (Q110) and electrolytic capacitor (C113) can change depending on the models. Be sure to check the reference numbers on the schematic diagram before starting the discharging work.

Confirmation of the soldering state of MICROCOMPUTER
Check the soldering state of the MICROCOMPUTER in addition to the above- described procedures. Be sure to exchange the MICROCOMPUTER after surely confirming that the trouble is not caused by poor soldering but by the MICROCOMPUTER itself.

ELECTRICAL MAIN PARTS LIST

REF. NO. PART NO. KANRI NO. DESCRIPTION

IC|  | C12

C19

| 87-A12-317-080

87-016-520-000

| C-CAP, U 0.1-50 Z F

CAP, E 3300-65 M SMG

---|---|---|---|---
8B-MA5-651-010

87-A21-419-040

87-A21-577-040

87-A21-893-040

87-A21-831-010

| C-IC, LC876572

C-IC,NJM14558MD-TE2 C-IC,M61506FP

C-IC, NJM14558V-TE2

IC, SPS-442-1-F1

| C20 C21 C22

C25

| 87-016-520-000

87-A10-520-000

87-A10-520-000

87-010-247-080

| CAP,E 3300-65 M SMG CAP,E 3300-35 M SMG CAP,E 3300-35 M SMG

CAP, ELECT 100-50V

 |  | C26| 87-010-247-080| CAP, ELECT 100-50V
87-A21-443-040| C-IC, M62495AFP| C27| 87-010-247-080| CAP, ELECT 100-50V
87-070-289-040| IC, BU2092F| C28| 87-010-247-080| CAP, ELECT 100-50V
87-A21-695-010

87-070-127-010

87-A21-269-010

| IC,LA1845L IC,LC72131D

IC, EW732

| C30

C31

| 87-010-430-080

87-A12-062-080

| CAP, ELECT 100-63

CAP, E 100-10 SMG

TRANSISTOR

87-A30-515-080

|

TR,2SA1979O/Y

| C32 C33 C34 C35| 87-012-286-080

87-A12-062-080

87-010-247-080

87-A12-066-080

| CAP, U 0.01-25

CAP, E 100-10 SMG CAP, ELECT 100-50V CAP, E 47-16 SMG

87-A30-559-010| TR, CSB1370EF| C36| 87-010-381-080| CAP, ELECT 330-16V
87-A30-492-080

87-A30-076-080

87-A30-075-080

87-A30-107-070

87-A30-484-080

| TR,2SC5343G C-TR,2SC3052F C-TR,2SA1235F

C-TR,CMBT5401 C-TR,KRA102S

| C38 C60 C61 C83

C97

| 87-012-286-080

87-A12-089-080

87-A12-071-080

87-A12-074-080

87-010-759-080

| CAP, U 0.01-25

CAP, E 3.3-50 SMG

CAP, E 47-25 SMG

CAP, E 470-25 SMG

C-CAP, U, 0.1-25F

87-026-610-080| TR, KTC3198GR| C99| 87-010-759-080| C-CAP,U, 0.1-25F
87-A30-074-080| C-TR, RT1P 141C| C101| 87-012-279-080| C-CAP,U 2700P-50 B
87-026-609-080

87-A30-190-080

| TR, KTA1266GR

TR, CC5551

| C102 C103| 87-012-279-080

87-A12-090-080

| C-CAP,U 2700P-50 B CAP,E 4.7-50 SMG
87-A30-106-040| C-TR, CMBT5551| C104| 87-A12-090-080| CAP,E 4.7-50 SMG
87-026-227-080

87-A30-087-080

87-A30-098-010

| C-TR,DTA114EK C-FET,2SK2158

TR, FP 1016

| C107 C108

C109

| 87-A12-091-080

87-A12-091-080

87-012-199-080

| CAP,E 10-50 SMG

CAP,E 10-50 SMG

C-CAP,U 220P-50 J CH

87-A30-097-010

|

TR, FN 1016

| C110| 87-012-199-080| C-CAP,U 220P-50 J CH
87-A30-162-010| FET,2SK2937| C111| 87-010-392-080| CAP ELECT 33-35 SME
87-A30-091-080

87-A30-090-080

87-A30-062-080

87-A30-582-080

87-A30-495-080

87-A30-142-040

87-A30-218-080

89-327-143-080

87-A30-489-080

89-503-602-080

87-A30-521-080

87-A30-234-080

| FET,2SJ460 FET,2SK2541 C-TR,KRC104S

TR,CDA1585BC TR,2SA1981Y

C-TR,DTA123EKA TR,2SB1237(Q) TR,2SC2714O

C-TR,KRA107S C-FET,2SK360E

C-TR,2SC5345S(O)

TR, CSC4115BC

| C112 C113 C114 C115

C116 C117 C118 C119 C120

C121 C122 C123

| 87-010-392-080

87-A10-596-080

87-A10-596-080

87-012-167-080

87-012-167-080

87-A12-317-080

87-A12-317-080

87-A12-317-080

87-A12-317-080

87-A12-090-080

87-A12-090-080

87-010-986-080

| CAP ELECT 33-35 SME C-CAP, S 100P-100 J CH C-CAP, S 100P-100 J CH C-CAP, U 5P-50 CH

C-CAP,U 5P-50 CH C-CAP,U 0.1-50 Z F C-CAP,U 0.1-50 Z F C-CAP,U 0.1-50 Z F C-CAP,U 0.1-50 Z F

CAP,E 4.7-50 SMG

CAP,E 4.7-50 SMG

C-CAP,S 820P-50 J CH

 |  | C124| 87-010-986-080| C-CAP,S 820P-50 J CH

DIODE

|  | C133| 87-012-282-080| CAP, U 4700P-50
 |  | C140| 87-012-278-080| C-CAP,U 2200P-50| B|
87-017-447-010

87-A40-553-080

87-A40-780-080

87-020-465-080

87-A40-764-080

| DIODE,GBU4DL-6419 DIODE,1N4003 LES ZENER,UZ33BSD DIODE,1SS133 (110MA) ZENER,UZ10BSC| C186 C187 C188 C191

C192

| 87-010-759-080

87-A10-119-080

87-A10-119-080

87-A10-812-080

87-A10-812-080

| C-CAP,U, 0.1-25F CAP,E 10-100 REA

CAP,E 10-100 REA C-CAP,S 220P-200

C-CAP,S 220P-200

|

J J

|

CH CH

87-A40-270-080| C-DIODE,MC2838| C225| 87-A12-317-080| C-CAP,U 0.1-50 Z| F|
87-A40-269-080| C-DIODE,MC2836| C226| 87-A12-317-080| C-CAP,U 0.1-50 Z| F|
87-A40-234-080| ZENER,MTZJ5.6A| C227| 87-A12-317-080| C-CAP,U 0.1-50 Z| F|
87-A40-646-010

87-A40-202-080

| DIODE,FMB-G16L ZENER,UZ5.1BSB| C228

C229

| 87-A12-317-080

87-012-287-080

| C-CAP,U 0.1-50 Z

C-CAP,U 0.015-25

| F

F

|
87-A40-749-080| ZENER,UZ5.6BSB| C230| 87-012-287-080| C-CAP,U 0.015-25| F|
87-A40-539-080| ZENER,MTZJ2.4A| C231| 87-012-286-080| CAP, U 0.01-25|  |
87-A40-291-080| DIODE,1N4148 (CPT)| C232| 87-012-286-080| CAP, U 0.01-25|  |
87-017-149-080| ZENER,HZS6A2L| C241| 87-010-759-080| C-CAP,U, 0.1-25F|  |
 |  | C301| 87-012-274-080| C-CAP,U 1000P-50| K| B
MAIN C.B|  | C302| 87-012-274-080| C-CAP,U 1000P-50| K| B
 |  | C303| 87-012-275-080| C-CAP,U 1200P-50| K| B
C3     87-A12-317-080

C4     87-A12-317-080

C5     87-A12-317-080

| C-CAP,U 0.1-50 Z F C-CAP,U 0.1-50 Z F

C-CAP,U 0.1-50 Z F

| C304 C307| 87-012-275-080

87-A12-062-080

| C-CAP,U 1200P-50 CAP,E 100-10 SMG| K| B
C6     87-A12-317-080| C-CAP,U 0.1-50 Z F| C308| 87-A12-062-080| CAP,E 100-10 SMG
C9     87-A12-317-080| C-CAP,U 0.1-50 Z F| C309| 87-012-195-080| C-CAP,U 100P- 50CH
 |  | C310| 87-012-195-080| C-CAP,U 100P-50CH
C10     87-A12-317-080| C-CAP,U 0.1-50 Z F| C313| 87-012-284-080| CAP, U 6800P-50
C11     87-A12-317-080| C-CAP,U 0.1-50 Z F| C314| 87-012-284-080| CAP, U 6800P-50
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| CAP, U 0.022-25
C326| 87-016-118-080| C-CAP,U0.022-25JB|  | C804| 87-A12-062-080| CAP,E 100-10 SMG
C327| 87-A12-317-080| C-CAP,U 0.1-50 Z| F| C807| 87-A12-086-080| CAP,E 0.47-50 SMG
C360| 87-A12-087-080| CAP,E 1-50 SMG|  | C808| 87-A12-087-080| CAP,E 1-50 SMG
C365| 87-010-759-080| C-CAP,U, 0.1-25F|  | C809| 87-A12-087-080| CAP,E 1-50 SMG
C399| 87-012-270-080| CAP, U 470P-50|  | C810| 87-010-831-080| C-CAP,U,0.1-16F
C401| 87-A12-083-080| CAP,E 0.1-50 SMG|  | C814| 87-012-286-080| CAP, U 0.01-25
C402| 87-A12-083-080| CAP,E 0.1-50 SMG|  | C815| 87-A12-086-080| CAP,E 0.47-50 SMG
C403| 87-012-193-080| C-CAP,U 82P-50 CH|  | C816| 87-A12-086-080| CAP,E 0.47-50 SMG
C404| 87-012-193-080| C-CAP,U 82P-50 CH|  | C821| 87-A12-091-080| CAP,E 10-50 SMG
C405| 87-012-286-080| CAP, U 0.01-25|  | C823| 87-010-986-080| C-CAP,S 820P-50 J CH
C406| 87-012-286-080| CAP, U 0.01-25|  | C824| 87-A12-090-080| CAP,E 4.7-50 SMG
C407| 87-012-286-080| CAP, U 0.01-25|  | C825| 87-010-829-080| CAP, U 0.047-16
C408| 87-012-286-080| CAP, U 0.01-25|  | C842| 87-012-286-080| CAP, U 0.01-25
C409| 87-012-278-080| C-CAP,U 2200P-50| B| C844| 87-012-286-080| CAP, U 0.01-25
C410| 87-012-278-080| C-CAP,U 2200P-50| B| C850| 87-A12-071-080| CAP,E 47-25 SMG
C411| 87-A12-091-080| CAP,E 10-50 SMG|  | C851| 87-012-286-080| CAP, U 0.01-25
C412| 87-A12-091-080| CAP,E 10-50 SMG|  | C852| 87-012-286-080| CAP, U 0.01-25
C452| 87-A12-092-080| CAP,E 22-50 SMG|  | C853| 87-012-286-080| CAP, U 0.01-25
C453| 87-012-279-080| C-CAP,U 2700P-50| B| C858| 87-010-831-080| C-CAP,U,0.1-16F
C454| 87-012-279-080| C-CAP,U 2700P-50| B| C901| 87-018-145-080| CAP,TC-U 6.8P-50 CH
C455| 87-012-279-080| C-CAP,U 2700P-50| B| C904| 87-012-286-080| C-CAP,U 0.01-25
C456| 87-012-286-080| CAP, U 0.01-25|  | C905| 87-012-286-080| C-CAP,U 0.01-25

C457

|

87-A12-361-080

|

CAP,M 5600P-100 J CP

|

C907

|

87-012-286-080

|

C-CAP,U

|

0.01-25

C458| 87-012-274-080| CHIP CAP,U 1000P-50B| C908| 87-A10-915-080| C-CAP,U| 1000P-25 J CH
C459| 87-012-271-080| CAP, U 560P-50| C909| 87-012-286-080| C-CAP,U| 0.01-25
C460| 87-010-759-080| C-CAP,U, 0.1-25F| C910| 87-012-174-080| C-CAP, U| 12P-50 J CH
C461| 87-012-269-080| C-CAP,U 390P-50 B| C911| 87-012-170-080| C-CAP, U| 8P-50 CH
C462| 87-012-269-080| C-CAP,U 390P-50 B| C912| 87-012-195-080| C-CAP, U| 100P- 50CH
C470| 87-018-127-080| CAP, CER 470P-50V| C913| 87-012-286-080| C-CAP,| U 0.01-25
C605| 87-012-275-080| C-CAP,U 1200P-50 B| C914| 87-012-166-080| C-CAP, U| 4P-50 C CH
C606| 87-012-275-080| C-CAP,U 1200P-50 B| C915| 87-012-174-080| C-CAP, U| 12P-50 J CH
C609| 87-012-287-080| C-CAP,U 0.015-25 F| C916| 87-012-180-080| C-CAP, U| 22P-50 CH
C610| 87-012-287-080| C-CAP,U 0.015-25 F| C917| 87-012-186-080| C-CAP, U| 39P-50 CH
C611| 87-A12-084-080| CAP,E 0.22-50 SMG| C918| 87-A10-039-080| C-CAP, U| 470P-50 J CH
C612| 87-A12-084-080| CAP,E 0.22-50 SMG| C921| 87-012-195-080| C-CAP, U| 100P- 50CH
C613| 87-A12-084-080| CAP,E 0.22-50 SMG| C922| 87-012-174-080| C-CAP, U| 12P-50-J CH
C614| 87-A12-084-080| CAP,E 0.22-50 SMG| C959| 87-010-831-080| C-CAP,U,0.1-16F

C615

|

87-012-172-080

|

C-CAP,U 10P-50 D

|

CH

|

C960

|

87-010-831-080

|

C-CAP,U,0.1-16F

C616| 87-010-221-080| CAP, ELECT 470-10V| C961| 87-012-167-080| C-CAP,U 5P-50 CH
C617| 87-010-221-080| CAP, ELECT 470-10V| C963| 87-015-785-080| C-CAP,0.1-25 Z F
C618| 87-A12-091-080| CAP,E 10-50 SMG| C971| 87-A12-067-080| CAP,E 330-16 SMG
C620| 87-010-263-080| CAP, ELECT 100-10V| C972| 87-A12-090-080| CAP,E 4.7-50 SMG
C623| 87-010-402-080| CAP, ELECT 2.2-50V| C973| 87-012-286-080| CAP, U 0.01-25
C624| 87-010-402-080| CAP, ELECT 2.2-50V| C974| 87-012-286-080| CAP, U 0.01-25
C630| 87-010-759-080| C-CAP,U, 0.1-25F| C979| 87-012-195-080| C-CAP,U 100P- 50CH
C669| 87-012-195-080| C-CAP,U 100P-50CH| C981| 87-A12-071-080| CAP,E 47-25 SMG
C670| 87-012-195-080| C-CAP,U 100P-50CH| C982| 87-010-831-080| C-CAP,U,0.1-16F
C677| 87-012-286-080| CAP, U 0.01-25| C983| 87-012-286-080| CAP, U 0.01-25
C771| 87-A12-062-080| CAP,E 100-10 SMG| C984| 87-012-286-080| CAP, U 0.01-25
C772| 87-012-286-080| CAP, U 0.01-25| C987| 87-012-286-080| CAP, U 0.01-25
C782| 87-012-286-080| CAP, U 0.01-25| C991| 87-012-176-080| C-CAP,U 15P-50 J CH
C783| 87-012-286-080| CAP, U 0.01-25| C992| 87-012-176-080| C-CAP,U 15P-50 J CH
C784| 87-012-286-080| CAP, U 0.01-25| C993| 87-012-274-080| CHIP CAP,U 1000P- 50B
C785| 87-012-286-080| CAP, U 0.01-25| C995| 87-012-274-080| CHIP CAP,U 1000P- 50B
C786| 87-012-286-080| CAP, U 0.01-25| C997| 87-010-831-080| C-CAP,U,0.1-16F
C788| 87-012-167-080| C-CAP,U 5P-50 CH| C998| 87-A12-071-080| CAP,E 47-25 SMG
C789| 87-A12-052-080| C-CAP,S 0.033-25 J B| C999| 87-A11-155-080| CAP,TC U 0.01-16 Z F
C790| 87-A12-052-080| C-CAP,S 0.033-25 J B| CF831| 87-008-261-010| FILTER, SFE10.7MA5
C791| 87-010-831-080| C-CAP,U,0.1-16F| CF832| 87-008-261-010| FILTER, SFE10.7MA5
C792| 87-012-286-080| CAP, U 0.01-25| CN301| 87-A60-620-010| CONN,3P V 2MM JMT
C793| 87-A12-090-080| CAP,E 4.7-50 SMG| CN351| 87-A60-625-010| CONN,8P V 2MM JMT
C795| 87-012-286-080| CAP, U 0.01-25| CN501| 87-099-564-010| CONN,4P TUC- P4P-B1
C796| 87-012-286-080| CAP, U 0.01-25| CN601| 87-099-719-010| CONN,30P TYK-B(X)
C797| 87-A12-091-080| CAP,E 10-50 SMG| CN602| 87-A60-131-010| CONN,6P V FE
C798| 87-012-286-080| CAP, U 0.01-25| CNA1| 8A-NF8-653-010| CONN ASSY,9P TID-A(480)
C799| 87-A12-093-080| CAP,E 33-50 SMG| D902| 87-A40-128-080| C-VARI- CAP,HVU202A
C800| 87-010-829-080| CAP, U 0.047-16| D903| 87-A40-128-080| C-VARI- CAP,HVU202A
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| 87-010-405-040| CAP,E 10-50
J602| 87-A60-881-010| JACK,PIN 2P MSP 242V05 PBSN| C421| 87-012-274-080| C-CAP,U 1000P-50 K B
J831| 87-A60-202-010| TERMINAL,ANT 4P MSP-154V-02| C422| 87-012-274-080| C-CAP,U 1000P-50 K B
JR123| 87-A10-596-080| C-CAP,S 100P-100 J CH| C651| 87-012-274-080| C-CAP,U 1000P-50 K B
JR124| 87-A10-596-080| C-CAP,S 100P-100 J CH| C652| 87-012-274-080| C-CAP,U 1000P-50 K B
L201| 87-A50-610-010| COIL,1UH K(MDEC)| C940| 87-012-145-080| C-CAP,S 270P-50 J CH
L202| 87-A50-610-010| COIL,1UH K(MDEC)| C941| 87-012-145-080| C-CAP,S 270P-50 J CH
L451| 87-007-342-010| COIL,OSC 85K BIAS| C942| 87-012-145-080| C-CAP,S 270P-50 J CH
L801| 87-A50-608-010| COIL,FM DET-N(TOK)| C943| 87-012-145-080| C-CAP,S 270P-50 J CH
L802| 87-A91-551-010| FLTR,PCFJZH-450 L(TOK)| C944| 87-012-145-080| C-CAP,S 270P-50 J CH
L811| 87-005-847-080| COIL,2.2UH(CECS)| C945| 87-012-145-080| C-CAP,S 270P-50 J CH
L832| 87-005-847-080| COIL,2.2UH(CECS)| C946| 87-012-145-080| C-CAP,S 270P-50 J CH
L902| 88-ZA1-602-110| COIL,FM-RF-U2 2G| C947| 87-012-145-080| C-CAP,S 270P-50 J CH
L903| 88-ZA1-601-010| COIL,FM-RF-U1 2G| C948| 87-012-145-080| C-CAP,S 270P-50 J CH
L904| 87-005-847-080| COIL,2.2UH(CECS)| C949| 87-012-145-080| C-CAP,S 270P-50 J CH
L905| 88-ZA1-624-010| COIL,FM IFT 7-6.2 (COILS)| C950| 87-012-145-080| C-CAP,S 270P-50 J CH
L906| 88-ZA1-603-010| COIL,FM-OSC-U 2G| C951| 87-012-145-080| C-CAP,S 270P-50 J CH
L951| 8A-NF8-667-010| COIL, AM PACK 4(TOK)| C952| 87-012-145-080| C-CAP,S 270P-50 J CH
R129| 87-A00-262-080| RES,M/F 0.15-2W J| CN101| 87-099-720-010| CONN,30P TYK-B(P)
R130| 87-A00-262-080| RES,M/F 0.15-2W J| CN104| 87-A60-136-010| CONN,11P V FE
R131| 87-A00-262-080| RES,M/F 0.15-2W J| CN1000| 87-A60-133-010| CONN,8P V FE
R132| 87-A00-262-080| RES,M/F 0.15-2W J| CNA302| 8B-MA5-652-010| CONN ASSY,2P V (100MM)
R243| 87-A00-441-050| RES,270-1/2W J RP| FFC104| 88-911-151-110| FF-CABLE,11P 1.25 15
R244| 87-A00-441-050| RES,270-1/2W J RP| FFC1000| 88-908-271-210| FF-CABLE,8P 1.25 27
R245| 87-A00-442-050| RES,330-1/2W J RP| FL101| 8B-MA5-671-010| FL, BJ823GNK
R246| 87-A00-442-050| RES,330-1/2W J RP| L101| 87-A50-333-010| COIL, OSC 9.43MHZ
R790| 87-012-286-080| CAP, U 0.01-25| LED131| 87-A40-317-080| LED, SLR- 342VCT31 RED
R991| 87-012-195-080| C-CAP,U 100P-50CH| LED202| 87-A41-056-040| LED, HLMF-D405 ORANGE
R993| 87-012-195-080| C-CAP,U 100P-50CH| LED205| 87-A41-056-040| LED, HLMF-D405 ORANGE
R995| 87-012-195-080| C-CAP,U 100P-50CH| LED210| 87-A41-056-040| LED, HLMF-D405 ORANGE
SFR451| 87-024-435-080| SFR 33K RH 063MC| LED212| 87-A41-056-040| LED, HLMF-D405 ORANGE
SFR452| 87-024-435-080| SFR 33K RH 063MC| LED682| 87-A41-056-040| LED, HLMF-D405 ORANGE
TH101| 87-A91-042-080| C-THMS,100K 55001| LED683| 87-A41-056-040| LED, HLMF-D405 ORANGE
TH102| 87-A91-042-080| C-THMS,100K 55001| LED684| 87-A41-056-040| LED, HLMF-D405 ORANGE
WH1| 87-A90-510-010| HLDR, WIRE 2.5-9P| LED685| 87-A41-056-040| LED, HLMF-D405 ORANGE
X992

FRONT C.B C100

| 87-A70-306-010

87-A10-047-080

| VIB,XTAL 4.500MHZ CSA-309ST

C-CAP,U 1-10 Z F

| LED698 S401 S402

S405 S421

| 87-A41-056-040

87-A90-095-080

87-A90-095-080

87-A90-095-080

87-A92-071-010

| LED,HLMF-D405 ORANGE SW,TACT EVQ11G04M SW,TACT EVQ11G04M

SW,TACT EVQ11G04M SW,RTRY EC12E24508-30MM

C106| 87-010-248-040| CAP,E 220-10 M 11L SME| S651| 87-A91-542-010| SW, RTRY EC12E12504
C107| 87-010-759-080| C-CAP,U, 0.1-25F| S805| 87-A90-095-080| SW, TACT EVQ11G04M
C108| 87-012-278-080| C-CAP,U 2200P-50 B| S806| 87-A90-095-080| SW, TACT EVQ11G04M
C110| 87-010-248-040| CAP,E 220-10 M 11L SME|

S807

|

87-A90-095-080

|

SW, TACT EVQ11G04M

C111| 87-A10-260-080| C-CAP,U 0.1-16 KB| S808| 87-A90-095-080| SW, TACT EVQ11G04M
C112| 87-010-493-040| CAP,E 0.47-50 M 5L SRE| S809| 87-A90-095-080| SW, TACT EVQ11G04M
C113| 87-012-274-080| CHIP CAP,U 1000P-50B| S821| 87-A90-095-080| SW, TACT EVQ11G04M
C116| 87-010-759-080| C-CAP,U 0.1-25F| S822| 87-A90-095-080| SW, TACT EVQ11G04M
C117| 87-010-872-080| C-CAP,U 470P-50 SL|

S823

|

87-A90-095-080

|

SW, TACT EVQ11G04M

C122| 87-012-369-080| C-CAP,S 0.047-50F| S825| 87-A90-095-080| SW, TACT EVQ11G04M
C123| 87-010-408-040| CAP,E 47-50 SME| S826| 87-A90-095-080| SW, TACT EVQ11G04M
C124| 87-010-421-040| CAP,E 4.7-50 5L| S827| 87-A90-095-080| SW, TACT EVQ11G04M
C125| 87-010-421-040| CAP,E 4.7-50 5L| S828| 87-A90-095-080| SW, TACT EVQ11G04M
C132| 87-012-199-080| C-CAP,U 220P-50 J CH|

S829

|

87-A90-095-080

|

SW, TACT EVQ11G04M

C133| 87-012-184-080| C-CAP,U 33P-50 CH| S830| 87-A90-095-080| SW, TACT EVQ11G04M
C135| 87-018-209-080| CAP, CER 0.1-50V| S831| 87-A90-095-080| SW, TACT EVQ11G04M
C137| 87-012-178-080| C-CAP,U 18P-50 CH| S842| 87-A90-095-080| SW, TACT EVQ11G04M
C138| 87-010-759-080| C-CAP,U, 0.1-25F| S843| 87-A90-095-080| SW, TACT EVQ11G04M
C251| 87-010-759-080| C-CAP,U, 0.1-25F|

S845

|

87-A90-095-080

|

SW, TACT EVQ11G04M

C252| 87-012-199-080| CAP 220P| S846| 87-A90-095-080| SW, TACT EVQ11G04M
C253| 87-012-195-080| C-CAP,U 100P-50CH| S849| 87-A90-095-080| SW, TACT EVQ11G04M
C301| 87-012-358-080| C-CAP,S 0.47-10 Z F| S851| 87-A90-095-080| SW, TACT EVQ11G04M
C302| 87-012-335-080| C-CAP,U 270P-50 J SL|  |  |
C303| 87-012-358-080| C-CAP,S 0.47-10 Z F|  |  |
KEY CD C.B
C304| 87-012-358-080| C-CAP,S 0.47-10 Z F|  |  |  |
C305| 87-010-759-080| C-CAP,U, 0.1-25F| CNA702| 87-A60-666-010| CONN,2P| H 2MM JMT
C306| 87-010-759-080| C-CAP,U, 0.1-25F| S751| 87-A90-095-080| SW, TACT| EVQ11G04M
C310| 87-010-759-080| C-CAP,U, 0.1-25F| S752| 87-A90-095-080| SW, TACT| EVQ11G04M
 | S753 S754 S755| 87-A90-095-080

87-A90-095-080

87-A90-095-080

| SW,TACT EVQ11G04M SW,TACT EVQ11G04M 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 CN502 CN503| 87-010-380-080

87-A60-688-010

87-A60-619-010

| CAP, ELECT 47-16V CONN,4P H GRY TUC-P04X-C1 CONN,2P V 2MM JMT

PT C.B

|  |
CN101| 87-A61-110-010| CONN,9P V TID-A
| F1| 87-035-194-010| FUSE,6.3A 250V T 218
| FC1| 87-033-213-080| FUSE CLAMP, PFC5000
| FC2| 87-033-213-080| FUSE CLAMP, PFC5000
| PT1| 8B-MA5-663-010| PT, BMA-5 LH
| PT2| 8B-MA6-673-010| PT, SUB BMA H (VRK)
| RY101| 87-A91-300-010| RELAY, AC 12V-ALA2PF12
| S101| 87-A90-165-010| SW, SL 1-2-3 SWS2301
| T1| 87-A60-317-010| TERMINAL,1P MSC
| T2| 87-A60-317-010| TERMINAL,1P MSC

DECK C.B

CN1

CNA301

| 87-099-753-010

86-ZM3-604-210

| CONN,11P H 9604

CONN ASSY,3P-PB

---|---|---
CNA351| 86-ZM3-605-110| CONN ASSY,8P-RPB
SFR1| 87-024-581-010| SFR,3.3K H KVSF637A
SW1| 87-A90-673-010| SW, MICRO ESE11SH1C
SW2| 87-A90-673-010| SW, MICRO ESE11SH1C
SW3| 87-A90-673-010| SW, MICRO ESE11SH1C
SW4| 87-A90-673-010| SW, MICRO ESE11SH1C
SW5| 87-A90-673-010| SW, MICRO ESE11SH1C

TRANSISTOR ILLUSTRATION

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-6 aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-7

WIRING

WIRING – 1 (MAIN)

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-8

SCHEMATIC DIAGRAM – 1 (MAIN 1 / 2 : AMP SECTION)

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-9

SCHEMATIC DIAGRAM – 2 (MAIN 2 / 2 : TUNER SECTION)

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-10

WIRING – 2 (FRONT)

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-11

SCHEMATIC DIAGRAM – 3 (FRONT / DECK)

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-12

WIRING – 3 (KEY CD / FAN)

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-13

SCHEMATIC DIAGRAM – 4 (KEY CD / FAN)

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-14

WIRING -4 (PT)

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-15

SCHEMATIC DIAGRAM – 5 (PT)

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-16

WIRING – 5 (DECK)

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-17

IC DESCRIPTION
IC, LC876572

Pin No. Pin Name I/O Description
1 M-CLK O Common serial clock.
2 M-DATA O Common serial data.
3

TU-ON

| O| Tuner supply control. H: ON.
4| O-PLL-CE| O| Tuner PLL IC chip enabled.
5|

CD5

| O| CD dish LED5. L: ON.
6| BIAS| O| Recording bias control. L: ON.
7| O-POWER| O| Audio power ON/OFF.
8| O-MUTE| O| System mute ON/OFF.
9|

O-C-SHIFT

| O| Clock shift output. L: Shift.
10|

CD1

| O| CD dish LED1. L: ON.
11| I-RESET| I| System reset input.
12| I-RTVR| I| Volume rotary encoder.
13| I-JOG| I| Dial jog rotary encoder.
14| VSS1| –| Connected to GND.
15| CF1| I| Oscillator circuit input.
16| CF2| O| Oscillator circuit output.
17| VDD1| –| Power supply.
18| HOLD| I| The system holds input.
19 ~ 21| I-KEY1 ~ 3| I| Tact key matrix 1 ~ 3 input.
22| I-CDSW| I| CD MECHA SW matrix input.
23| I-DISH| I| CD turntable photo sensor.
24| I-SPEANA| I| Spectrum analyzer level detection.
25| O-RMT| O| Record ON/OFF control. H: ON.
26| I-RDS-SG| I| RDS Signal level input. (Not used)
27| I-TM-BASE| I| Time-based clock input.
28| I-WRQ/I-RDS-CK| I| CD WRQ input/Tuner RDS clock input. (Not used)
29| I-REM| I| Remote control signal input.
30 ~ 42| G13 ~ G1| O| FL grid G13 ~ G1 output.
43 ~ 45| P38 ~ P36| O| FL segment P38 ~ P36 output.
46| VDD3| –| Power supply.
47| SPEANA–A/P35| O| Spectrum analyzer band control A/FL segment P35 output.
48| SPEANA–B/P34| O| Spectrum analyzer band control B/FL segment P34 output.
49| SPEANA–C/P33| O| Spectrum analyzer band control C/FL segment P33 output.
50| CSNDEMO/P32| I/O| Initial DEMO mode detect. H: OFF/FL segment P32 output.
51| –VP| –| Power supply for FL input.
52| P31/TU3| O/I| FL segment P31 output/TUNER series, TU3 select.
53| P30/TU2| O/I| FL segment P30 output/TUNER series, TU2 select.
54| P29/TU1| O/I| FL segment P29 output/TUNER series, TU1 select.
55| P28| O| FL segment P28 output.
56| P27| O| FL segment P27 output.
57| I-STEREO/P26| I/O| Tuner stereo signal input/FL segment P26 output.
58| P25| O| FL segment P25 output.
Pin No.| Pin Name| I/O| Description
---|---|---|---
59|

P24/ECO

| O/I| FL segment P24 output/ECO setting switching input. H: ECO mode off.
60 ~ 63| P23 ~ P20| O| FL segment P23 ~ P20 output.
64|

P19/CST2

| O/I| FL segment P19 output/Deck 2 cassette detection. L: YES.
65| P18| O| FL segment P18 output.
66|

P17/CAM2

| O/I| FL segment P17 output/Deck 2 cam SW input. L: ON.
67|

P16/AUTO1

| O/I| FL segment P16 output/Deck 1 auto stop input.
68| P15/AUTO2| O/I| FL segment P15 output/Deck 2 auto stop input.
69|

P14/CAM1

| O/I| FL segment P14 output/Deck 1 cam SW input. L: ON.
70|

P13/CST1

| O/I| FL segment P13 output/Deck 1 cassette detection SW. L: YES.
71|

P12/REA

| O/I| FL segment P12 output/Deck 2 side-A recordable SW. L: REC.
72| VDD4| –| Power supply.
73 ~ 83| P11 ~ P1| O| FL segment P11 ~ P1 output.
84| P39| O| FL segment P39 output.
85|

O-KSCAN

| O| Keyscan output. L: IN.
86|

MOTOR

| O| Deck motor ON/OFF control. L: ON.
87|

SOL1

| O| Deck 1 solenoid control. L: ON.
88|

SOL2

| O| Deck 2 solenoid control. L: ON.
89| VSS2| –| Connected to GND.
90| VDD2| –| Power supply.
91| DISH-RVS| O| CD dish reverse output. H: REV(2). (Not used)
92| DISH-FWD| O| CD dish forward output. H: FWD(2). (Not used)
93|

CD3

| O| CD dish LED3. L: ON.
94|

CD4

| O| CD dish LED4. L: ON.
95| O-CD-DATA| O| Serial data output to CD.
96| CD-XLT| O| CD DSP serial latch output.
97|

CD-CLK

| O| CD DSP serial clock output.
98| SR-LCK| O| Shift register IC latch clock.
99| I-IFC/I-CD-SUB| I| Tuner IF count data input/CD SUBQ serial data input.

100

| I-RDS-DATA/ I-CD-DRF|

I

| RDS serial data input. (Not used)/ CD RF detect input.

IC BLOCK DIAGRAM

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-18

FL (BJ823GNK) GRID ASSIGNMENT & PIN CONNECTION & ANODE CONNECTION GRIn ASSIGNMENT

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-19

PIN CONNECTION

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-20

ANODE CONNECTION

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-21

ADJUSTMENT < TUNER / DECK / FRONT > < TUNER SECTION >

  1. Clock Frequency Check
    • Settings : • Test point : TP2 (CLK)
    • Method: Set to AM 1710 kHz and check that the test point is 2160 kHz ± 45 Hz.
  2. AM VT Check
    • Settings : • Test point : TP1 (VT)
    • Method: Set it to AM 1710 kHz and check that the test point is less than 8.5 V. Then set to AM 530 kHz and check that the test point is more than 0.6 V.
  3. FM VT Adjustment
    • Settings : • Test point : TP1 (VT)
    • Adjustment Location: L906
    • Method: Set to FM 108.0 MHz and adjust L906 so that the test point becomes 7.0 V ± 0.1 V. Then set to FM 87.5 MHz and check that the test point is more than 0.4 V.
  4. AM Tracking Adjustment
    • Settings : • Test point : TP8 (Lch), TP9 (Rch)
    • Adjustment Location : L951 (1/3)
    • Method: Set to AM 1000 kHz and adjust L951 (1/3) so that the test point becomes maximum.
  5. FM Tracking Adjustment
    • Settings : • Test point : TP8 (Lch), TP9 (Rch)
    • Adjustment Location: L903
    • Method: Set to FM 87.5 MHz and adjust L903 so that the test point is less than 9dbμV.
  6. AM IF Adjustment
    • Settings : • Test point : TP8 (Lch), TP9 (Rch)
    • Adjustment location :
    • L802 ……………………… 1000 kHz
  7. DC Balance / Mono Distortion Adjustment
    • Settings : • Test point : TP3, TP4 (DC balance)
    • Adjustment Location: L801
    • Input level: 60dBμV
    • Method: Set to FM 98.0 MHz and adjust L801 so that the
    • voltage between TP3 and TP4 is 0 V ± 500 mV.
    • Next, check that the distortion is less than 1.2%.
  8. Output Level Check
    • Settings : • Test point : TP8 (Lch), TP9 (Rch)
    • Input level: 74dBμV
    • Method: Set to AM 1000 kHz and check that the test point is 40 mV ± 3dB.
    • Settings : • Test point : TP8 (Lch), TP9 (Rch)
    • Input level: 60dBμV
    • Method: Set to FM 98.0 MHz and check that the test point is 200 mV ± 3dB.
  9. FM Separation Check
    • Settings : • Test point : TP8 (Lch), TP9 (Rch)
    • Input level: 60dBμV Method : Set to FM 98.0 MHz and check that the test point is more than 25dB.< DECK SECTION >
  10. Tape Speed Adjustment (DECK 2)
    • Settings: • Test tape: TTA–100
    • Test point : TP8(Lch), TP9(Rch)
    • Adjustment Location: SFR1
    • Method: Play back the test tape and adjust SFR1 so that the frequency counter reads 3000 Hz ± 5 Hz (FWD) and FWD speed ± 45 Hz (REV) to forward speed.
  11. Head Azimuth Adjustment (DECK 1, DECK 2)
    • Settings: • Test tape: TTA–330
    • Test point : TP8(Lch), TP9(Rch)
    • Adjustment Location: Head azimuth adjustment screw
    • Method: Playback (FWD) the 8 kHz signal of the test tape and adjust the screw so that the output becomes maximum.
    • Next, perform on REV PLAY mode.
  12. PB Frequency Response Check (DECK 1, DECK 2) Settings: • Test tape: TTA–330
    • Test point: TP8(Lch), TP9(Rch) Method: Play back the 315 Hz and 8 kHz signals of the test tape and check that the output ratio of the 8 kHz signal concerning that of the 315 Hz signal is within 5dB.
  13. PB Sensitivity Check (DECK 1, DECK 2)
    • Settings: • Test tape: TTA–200
    • Test point : TP8(Lch), TP9(Rch)
    • Method: Play back the test tape and check that the output level of the test point is 140 mV ± 3dB.
  14. REC/PB Frequency Response Adjustment (DECK 2) Settings: • Test tape: TTA–602
    • Test point : TP8(Lch), TP9(Rch)
    • Input signal: 1 kHz / 10 kHz (LINE IN) (-20VU)
    • Adjustment Location : SFR451 (Lch) SFR452 (Rch)
    • Method: Apply a 1 kHz signal and REC mode. Then adjust the OSC attenuator so that the output level at the TP8, and TP9 becomes 0dB (10 mV). Record and play back the 1 kHz and 10 kHz signals and adjust SFRs so that the output of the 10 kHz signals becomes 0dB ± 1dB with respect to that of the 1 kHz signal.
  15. REC/PB Sensitivity Check (DECK 2) Settings: • Test tape: TTA–602
    • Test point : TP8(Lch), TP9(Rch)
    • Input signal: 1 kHz (LINE IN) (OVU)
    • Method: Apply a 1 kHz signal and REC mode. Then adjust the OSC attenuator so that the output level at TP8, and TP9 becomes 0dB (100 mV). Record and play back the 1 kHz signals and check that the output is -1dB ± 3.5 dB.
    • < FRONT SECTION >
  16. μ-CON OSC Adjustment
    • Settings : • Test point : TP10 (KEYSCAN)
    • TP11 (DGND)
    • Adjustment Location: L101
    • Method: Insert the AC plug while pressing the POWER key and TUNER function key. Connect a frequency counter across TP10 and TP11. Then adjust L101 so that the frequency at the test point is 208.80 Hz ± 0.21 Hz.
    • [Manual Reset]
    • Make up for RESET after adjustment.
    • Reset is to press the POWER key while pressing the CLEAR (STOP) key.

CD TEST MODE

  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.
    • The test mode is canceled by other function keys during play.
  3. Function and Usage of CD Test Mode
No Mode Button for Activation Display Operation Contents
1 Start Mode   All lights are lit. All FLs are lit. •    FL check

•    Microcomputer check

2| Search Mode| STOP button| Reading| •    Laser diode is lit during the mode.

•    Focus search continuous operation. *1

•    Spindle motor continuous kick.

| •    APC circuit check

•    Laser current measurement

•    Focus-search waveform check

•    Focus-error waveform check (DRF is ignored during search mode)

3| Play Mode| PLAY button| Normal| •    Normal playback.

•    Focus search continues if TOC READ cannot be read.

| •    All servo circuits check

•    DRF check

4| Traverse Mode| PAUSE

button

| Normal| •    Tracking Servo OFF/ON.

The OFF/ON operation repeats each time the PAUSE button is pressed.

| •    Tracking balance check
5| Sled Mode| FF button| TEST| •    PU moves to the inner track. *2 At the same time, the lens is kicked to the inner track.| ****

•    Sled circuit check

•    Tracking circuit check

•    Mechanism operation check

•    PU check

RWD button| TEST| •    PU moves to the outer track. *2 At the same time, the lens is kicked to the outer track.
6| Spindle Mode| REC button| All lights are lit.| •    When the button is pressed, the spindle motor operates in forward rotation (rough speed). Then, the button is pressed again, it operates in reverse rotation.

When the button is pressed again, the operation stops.

| •    Spindle circuit check

•    Spindle motor check

  1. When focus search operates continuously for more than 10 minutes, the protection circuit may start due to the generation of heat in the driver IC. If this happens, turn off the power, leave the unit for a while, and then, restart.
  2. Carefully monitor the gear against damage, as the sled motor rotates while the FF or RWD button is pressed even when the pickup is located at innermost or outermost.

MECHANICAL EXPLODED VIEW

MECHANICAL EXPLODED VIEW 1 / 1

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-22

MECHANICAL PARTS LIST 1 / 1

REF. NO. PART NO. KANRI NO. DESCRIPTION

1 8B-MA3-087-010 RING, JOG 31 8B-MA3-056-010 WINDOW, CASS R A3
2 8B-MA3-088-010 RING, AND 32 8B-MA3-025-010 BOX, CASS L A3
3 8B-MA3-081-010 KNOB, RTRY JOG 33 8B-MA3-055-010 WINDOW, CASS L A3
4 8B-MA3-105-010 KNOB ASSY, RTRY VOL 34 8A-MA5-208-010 SPR-T, EJECT 2
5 8B-MA3-086-010 RING, VOL 35 8B-MA3-207-010 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
11| 82-NF5-229-010| PLATE, LOCK| 41| 87-NF4-221-010| HLDR, CABLE
12| 8A-MA5-207-010| SPR-T, EJECT 1| ! 42| 87-A80-148-010| AC CORD ASSY,E BLK
13| 81-532-080-010| LABEL, CASS. COMPT| 43| 87-085-185-010| BUSHING, AC CORD (E)
14| 8B-MA5-031-010| PANEL, GEQ A5| 44| 87-MA3-062-010| FOOT, H17
15| 8B-MA5-030-010| PANEL, TRAY A5| 45| 8B-MA3-047-010| PANEL, SIDE L (U)
16| 8B-MA6-019-010| CABI, TOP U| 46| 8B-MA3-048-010| PANEL, SIDE R (U)
17| 8A-MA3-057-010| WINDOW, TOP| A| 87-078-060-010| BVIT3PB+3-10
18| 87-MA5-203-110| GUIDE, FL| B| 87-067-758-010| BVT2+3-12 W/O SLOT
19| 8B-MA3-061-010| KEY, OPEN| C| 87-067-703-010| TAPPING SCREW, BVT2+3-10
20| 8B-MA5-063-010| KEY, DIRECT A5| D| 87-NF4-224-010| S-SCREW, IT3B+3-8 CU
21| 8B-MA5-001-010| CABI, FR A5| E| 87-067-689-010| TAPPING SCREW, BVTT+3-8
22| 8B-MA3-206-010| GUIDE, LED OPE| F| 87-B10-315-010| BVIT3B+3-8 R W/O
23| 8B-MA3-102-010| KEY ASSY, OPE| G| 87-078-200-010| S-SCREW, ITC+4-8 R
24| 8B-MA5-103-010| KEY ASSY, FUNC A5| H| 87-591-095-410| TAPPING SCREW, QIT+3-8 (GLD)
25| 8B-MA3-084-010| RING, OPE| I| 87-067-641-010| UTT2+3-8(W/O SLOT)BL
26| 8B-MA3-064-010| KEY, T-BASS A3|  |  |
27| 8B-MA3-065-010| KEY, ENTER|  |  |
28| 8B-MA3-066-010| KEY, GEQ|  |  |
29| 87-NF4-217-110| HLDR,LOCK 2|  |  |
30| 8B-MA3-026-010| BOX, CASS R A3|  |  |

COLOR NAME TABLE

Basic color symbol| Color| Basic color symbol| Color| Basic color symbol| Color
---|---|---|---|---|---
B| Black| C| Cream| D| Orange
G| Green| H| Gray| L| Blue
LT| Transparent Blue| N| Gol| P| Pink
R| Re| S| Silver| ST| Titan Silver
T| Brown| V| Violet| W| White
WT| Transparent White| Y| Yellow| YT| Transparent Yellow
LM| Metallic Blue| LL| Light Blue| GT| Transparent Green
LD| Dark Blue| DT| Transparent Orange| GM| Metallic Green
YM| Metallic Yellow| DM| Metallic Orange| PT| Transparent Pink
LA| Aqua Blue| GL| Light Green|  |

TAPE MECHANISM EXPLODED VIEW 1 / 1

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-23

TAPE MECHANISM PARTS LIST 1 / 1

REF. NO. PART NO. KANRI NO. DESCRIPTION

1 8Z-ZM3-227-010 BELT, MAIN M3 31 8Z-ZM3-233-010 SPR-T, BRG M3
2 8Z-ZM3-235-010 BELT, MAIN L 32 84-ZM2-227-310 SPR-C, AZIMUTH
3 8Z-ZM1-235-010 PULLEY, MOT 33 87-A90-403-110 HEAD, RPH MS15R
4 87-045-347-010 MOT, SHU2L 70 34 87-A90-404-010 HEAD, EH LE15B
5 8Z-ZM1-232-010 GEAR, IDL FF/REW 35 8Z-ZM3-239-010 SPR-E, FR
6 8Z-ZM3-244-010 GEAR, CAM TD20 36 8Z-ZM3-211-010 LEVER, EJECT R
7 8Z-ZM3-256-010 FLY-WHL ASSY, M3 R 37 8Z-ZM3-225-010 LEVER, STOP
8 8Z-ZM3-255-010 FLY-WHL ASSY, M3 L 38 8Z-ZM3-221-010 LEVER, CAS
9 8Z-ZM3-231-010 SPR-T, TRIG 39 8Z-ZM3-234-010 SPR-T, LVR CAS
10 8Z-ZM3-213-010 CLR, MG 40 8Z-ZM3-223-010 SPR-C, REEL R M3
11 82-ZM3-616-010 RING MAGNET 4 41 8Z-ZM1-225-110 GEAR, REEL R
12 8Z-ZM3-243-010 LEVER ASSY, HD UP 42 8Z-ZM3-240-010 SPR-T, T-UP M3
13 8Z-ZM3-238-010 SPR-T, HD UP 43 8Z-ZM3-237-010 SPR-T, PINCH M3
14 8Z-ZM3-219-010 GEAR, CAM M3 44 8Z-ZM3-215-010 LEVER, PINCH M3
15 8Z-ZM3-206-010 LEVER, TRIG 45 8Z-ZM1-261-110 ROLLER ASSY, PINCH
16 8Z-ZM3-209-010 LEVER, CAM FR 46 8Z-ZM1-226-010 GEAR, REEL L
17 8Z-ZM3-203-010 CHAS ASSY, M3 47 8Z-ZM3-222-010 SPR-C, REEL L M3
18 8Z-ZM1-228-010 GEAR, SLIP T-UP B 48 8Z-ZM3-251-010 GEAR, IDL REW M3
19 8Z-ZM1-265-010 FELT, T-UP 49 8Z-ZM3-236-010 SPR-T, PLAY M3
20 8Z-ZM1-227-010 GEAR, SLIP T-UP A 50 82-ZM1-240-110 LVR,REC(*)
21 8Z-ZM1-251-110 SPR-C, T-UP SLIP 51 8Z-ZM3-216-010 LEVER, T-UP M3
22 8Z-ZM1-275-010 W-L,1,47-4-0.25 52 87-B10-301-010 W-L,1.63-3.2-05 SLIT
23 8Z-ZM1-257-010 SPR-C, F/R 53 8Z-ZM3-212-010 LEVER, EJECT L
24 8Z-ZM1-236-010 CLR, SLIP FF/REW 54 8Z-ZM3-214-010 HLDR, IC
25 8Z-ZM3-226-010 SPR-C, FR M3 55 86-ZM3-605-110 CONN ASSY,8P -RPB
26 8Z-ZM3-250-010 GEAR, SLIP F/R A M3 A 84-ZM2-242-010 S-SCREW, AZ1-2-6.4
27 8Z-ZM1-269-010 FELT, FF/REW 2 B 8Z-ZM2-220-110 V+2.6 ZZM-2
28 8Z-ZM1-238-110 GEAR, SLIP FF/REW B 2    
29 8Z-ZM3-220-010 LEVER,FR M3    
30 8Z-ZM3-205-010 LEVER, PLAY M3    

GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS

GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS (FOR REFERENCE)

Type.1

Insert a flat-bladed screwdriver into the position indicated by the arrows and remove the panel. Remove the screws of each speaker unit and then remove the speaker units.

Type.2

Remove the grill frame and four pieces of rubber caps by pulling them out with a flat-bladed screwdriver. Remove the screws from a hole where installed rubber caps. Insert a flat-bladed screwdriver into the position indicated by the arrows and remove the panel. Remove the screws of each speaker unit and then remove the speaker units.

Type.3

Insert a flat-bladed screwdriver into the position indicated by the arrows and remove the panel. Turn the speaker unit to a counterclockwise direction while inserting a flat-bladed screwdriver into one of the hollows around the speaker unit, and then remove the speaker unit. After replacing the speaker unit, install it turning to a clockwise direction until a “click” sound comes out.

TOOLS

  1. Plastic head hammer
  2. ( ) flat head screwdriver
  3. Cut chisel

How to Remove the PANEL, FR

  1. Insert the ( ) flat head screwdriver tip into the gap between the PANEL, FR, and the PANEL, SPKR. Tap the head of the ( ) flat-head screwdriver with the plastic hammerhead, and create the clearance as shown in Fig-1.
  2. Insert the cut chisel in the clearance, and tap the head of the cut chisel with a plastic hammer as shown in Fig-2, to remove the PANEL, FR.
  3. Place the speaker horizontally. Tap the head of the cut chisel with a plastic hammer as shown in Fig-3, and remove the PANEL, FR completely.

aiwa-Z-L620-Compact-Disc-Stereo-System-FIG-29

How to Attach the PANEL, FR

Attach the PANEL, FR to the PANEL, SPKR. Tap the four corners of the PANEL, FR with the plastic hammer to fit the PANEL, FR into the PANEL, SPKR completely.

SPEAKER PARTS LIST SX-WZL620 (YLSL)

REF. NO. PART NO. KANRI NO. 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 CORD,SPKR
  9. 88-NSK-610-010 SPKR,CERAMIC ASSY
  10. 8B-MS3-602-010 SPKR,W 200
  11. 8B-MS3-604-010 SPKR,M 140

ACCESSORIES / PACKAGE LIST

REF. NO. PART NO. KANRI NO. DESCRIPTION

  1. 8B-MA5-902-010 IB,LH(ESP)M
  2. 8Z-NF9-702-010 RC UNIT, ZAS02
  3. 87-043-115-010 ANT, FEEDER FM
  4. 87-006-268-010 ANT,LOOP AM
  5. 5 87-099-789-010 PLUG,ADPTR IR44

CONTACT

  • 110-8710
  • 1-2-11 803 (3827) 3111
  • 2-11, IKENOHATA 1-CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111
  • 2000075 9630472 0251431

References

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