Reading Ok Check (= "No Disc" Display) - LG FA162 Service Manual

ELECTRICAL TROUBLESHOOTING GUIDE OF CD PART

5. READING OK CHECK (= "NO DISC" DISPLAY)

Check connector locking.
(CN401, CN403)
YES
Does sled move?
YES
Does lense move?
(= Up & Down)
YES
Does laser light?
YES
Does spindle lotate?
YES
Is reading OK?
#A
NO
Check CN401
Pin3, 4 (SL+, SL-).
#B
NO
Check CN401
Pin13, 16 (FA+, FA-).
#C
NO
Check CN401
Pin10 (LD).
#D
NO
Check CN401
Pin5, 6 (SP+, SP-).
#E
NO
Check CN401
Pin14, 15 (TA+, TA-).
3-19
NO
Defective
pick-up or IC400 or IC401.
NO
Defective
pick-up or IC400 or IC401.
NO
Defective
pick-up or IC400 or IC401.
NO
Defective
pick-up or IC400 or IC401.
NO
Defective
pick-up or IC400 or IC401.