Technical_Inform_©_.pdf part of AIWA CSD-SL20 Technical_Inform_©_.pdf, Service Technical Information - Subject: Tape unit does not run

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Service Technical Information
MODEL NO.

CSD-SL20
SUBJECT

Tape unit does not run

REF.No. :G -A0 - 049 - E0 DATE :10. JUL. 2000

On the model concerned, tape unit does not run or fails in playback operation. Analyze the symptom and take the following countermeasure. The motor fails to run due to open status of a Q415 (CASS.MOTOR ON/OFF SW/DTC124 -X5) on P.W.B.MAIN. Replace Q415 with a new part and take the following countermeasure: 1) Cut the Line between Q415 collector and Q416 base on P.W.B. MAIN.

CUT LINE

Q415

Pattern side 2) Solder 2.2K , 1/8W resistor.

Parts side

R452 1k Q 416 2SA1296GR CN404
4 3 2 1 4 3 2 1

Add Resistor 2.2K

PN404

1 ) CUT L I E N

R450 470k

- + DECK MOTOR

Q 415 DTC124-X5 MOTOR LEAF SW
2 ) Add R es is to r 2 .2K

Circuit diagram Pattern side Ref. - - G - R - Parts Code 87- 026- 291- 080 88-121-222- 080 Code No. - Description TR,DTC124X5 RES,2.2K 1/8W Access Code - Modified Ser. No. - Remarks - - Parts Schedule -