Daewoo SD-8100, Service Manual

Page: 10 / 63

10
TROUBLESHOOTING
Cassette tape isn’t
inserted.
Is 5V voltage obtained at
Loading parts IC604 pin#82?
Is 13V voltage obtained at
Capstan Motor pin#8?
Check at ON/OFF 12.
Check (D822, Q821).
Connect Capstan and Loading Motor.
Check connector and Capstan Motor.
YES
NO
NO
NO
Is 12V voltage obtained at Each
parts of Loading Motor?
Replace Loading Motor.
Check D851 and POWER circuit.
E. No CASSETTE Loading
YES
YES
F. AUTO STOP in Playback mode
VCR stops automatically
in playback mode.
Check R656,C659 and P603 pin#11
Check P502 connector.
Check S603, S604 REEL Sensor.
Is D.PG/FG pulse at IC601
pin#90 normal ?
Is C. FG pulse at IC601 pin#87
normal ?
Is there REEL Pulse at IC601
pin#79, 80?
Check and replace IC601.
NO
YES
YES
YES
NO
Check C.FG(R660, C660)
and P603 pin#1.
NO