Focus Search And Laser Diode - LG LAD-9600 Service Manual

2. FOCUS SEARCH AND LASER DIODE

Is optical lens moving verti-
cally for searching focus?
YES
Does laser turn on during
focus search?
YES
Continue
NO
Is optical lens moving verti-
cally for searching focus ?
Normal focus actuator
driving signal ?
NO
Does laser turn on during
focus search ?
LDDV and LDCD output
properly ?
4-3
NO
YES
NO
NO
YES
NO
Check IC301 pin 22
Check IC301 pin 25, 26
and CN101 pin 1, 4
Check IC101 pin 38, 45
Check IC101 pin 3, 5, Q101,
Q103, Q102, and CN101
pin 7, 9