Reading Ok Check #C (= "No Disc" Display) - LG LM-U1060 Service Manual

I READING OK CHECK #C (= "NO DISC" DISPLAY)
C
IS ?V APPLIED TO PIN10 OF
PN801
LASER SUPPLY VOLTAGE
CHECK
CHECK PN801
CONNECTOR LINE
DEFECTIVE PICKUP
LASER PART
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(LDO) OF
IC801 LASER CONTROL
VOLTAGE CHECK
DEFECTIVE Q801 OR
D801
DEFECTIVE PN801
CONNECTOR
- 2-29 -
DEFECTIVE IC804
DEFECTIVE IC801