Harman Kardon CDR20 Service Manual page 26

Harman kardon cdr20 dual tray cd/cd-r/cd-rw recorder/player

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CDR20

Tray operating is abnormal.

(Tray open/close doesn't work)

Is threre Tray control signal intput?

(IC501 pin26)

YES

Is three Tray drive voltage output?

(IC501 pin15, 16)

YES

•Check the Tray Connector(CN701).

•Check the Motor Line and Motor.

•Check the connection of IC409 pin 12.

•Replace the IC409(M62352).

•Check the communication line between

IC409 and IC701(MICOM).

Is TRAY_MUTE

signal"L"?(IC501 pin20)

YES

When CN701

is open, Is there Tray drive

signal output?

YES

harman/kardon

•Check the connection of IC701

pin 25.

•Replace the IC301.

Replace the IC501(BA5983FM).

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