Specifications

Troubleshooting
Samsung Electronics 5-7
SLD, SIC-34
output is normal?
Yes
LED+, SLED-
SIC3-32,33 output are
normal?
Yes
Check the Sled Motor and connection
No pick-up home positingNo pick-up home positing
No
No
Check MIC1
Divide RQ1 emitter terminal
voltage and 5V real voltage
difference into 10ohm.
Open check in related circuit.
LD out pick-up replace.
Check MIC1
Check SIC3
B
RIC1-21 is 5V?
Yes
Yes
No
Current exceeds 0.1A?
Yes
No
NO LD CD ON