10
No laser on
Refer to ÔNo tray open/closeÕ
IC101 10pin changes from 0V to +3.3V?
Refer to ÔCheck power source and initial stateÕ
N
N
IC101 9pin changes from 4.2V to 3.6V?
Check IC101 power input and replace.
Y
Open and close tray(Disc insettion)
Y
CN501 3pin changes from 2V to 2.5V?
Check D101, L101, Q102, R102, C103 soldering
Y
CN501 2pin changes from 0V to 0.7V?
Check Pick-up FPC connection state
N
N
N
Y
Replace pick-up
Y
16
SCR-140(A4)-en 99.3.15 8:40 AM ˘
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10
Summary of Contents for SC-140
Page 2: ... Samsung Electronics Co Ltd MARCH 1999 Printed in Korea Code No BG68 00045A Electronics ...
Page 48: ...8 7 Operational Position Diagram SCR 140 A3 99 3 15 11 19 AM 4 ...
Page 49: ...10 9 Operational Position Diagram SCR 140 A3 99 3 15 9 1 AM 5 ...
Page 50: ...12 Operational Position Diagram 11 SCR 140 A3 99 3 15 9 1 AM 6 ...
Page 51: ...24 23 Circuit Diagram SCR 140 A3 99 3 15 9 0 AM 3 ...