LG LX-U250D Service Manual page 14

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READING OK CHECK #C
(= "NO DISC" DISPLAY)
C
IS ?V APPLIED TO PIN10 OF
PN501
LASER SUPPLY VOLTAGE CHECK
CHECK PN801 CONNECTOR LINE
IS 3.3 V APPLIED TO
PIN30,36,39,41,61,68,75
OF IC801
RF IC SUPPLY VOLTAGE
CHECK
IS 2.3 V PIN18 OF IC801
LASER CONTROL
VOLTAGE CHECK
- 2-7 -
DEFECTIVE IC804
DEFECTIVE IC801
DEFECTIVE Q801 OR
D801
DEFECTIVE PN801
CONNECTOR
DEFECTIVE PICKUP
LASER PART

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