LG XA64 - CD Reading Check

12. CD READING CHECK
Check connector locking CN1, CN500, CN503
Defective pick-up or U502, U504
Defective pick-up or U502, U504
Defective pick-up or Q501
Defective pick-up or U502, U504
Defective pick-up or U502, U504
YES
YES
YES
YES
YES
Check CN500 pin3, 4 (SL+, SL-)
Check CN503 pin13,16 (F+, F-)
Check CN503 pin10 (LD)
Check CN500 pin1, 2 (SP+, SP-)
Check CN503 pin14,15 (T+, T-)Is reading OK?
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
Does sled motor move?
Does the laser move?
Does laser light?
Does the spindle motor rotate?
3-11
ELECTRICAL TROUBLESHOOTING GUIDE