LG XC62-A0U Service Manual page 55

1-3. READING OK CHECK (= "NO DISC" DISPLAY)
Connector locking check
(PN801, PN802)
Does sled move?
YES
Does lense move?
(= UP & DOWN)
YES
Does laser light?
YES
Does spindle rotate?
YES
Is reading OK?
A
NO
Check PN802
PIN3, 4 (SL+, SL-)
B
NO
Check PN801
PIN13, 16 (FA+, FA-)
C
NO
Check PN801 PIN10 (LD)
D
NO
Check PN802
PIN5, 6 (SP+, SP-)
E
NO Check PN801
PIN14, 15 (TA+, TA-)
4-4
NO
Defective pick up or
IC802 or IC801
NO
Defective pick up or
IC802 or IC801
NO
Defective pick up or IC801
NO
Defective pick up or
IC802 or IC801
NO
Defective pick up or
IC802 or IC801