LG MCD112 - Page 53

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