Service manual

3-70 3-71
2. DRIVE & RF CIRCUIT DIAGRAM
4
1
1
6
2
3
TRACKING LOOP
FOCUS LOOP
SLED LOOP
SPINDLE LOOP
WAVEFORM
IC2A2 is defective.
No fucus & tracking control.
Q2A1, Q2A2 are defective.
CD/DVD LD will not be on.