NAD T531B - Drive & RF Circuit Diagram

3. DRIVE & RF CIRCUIT DIAGRAM
4
1
1
6
2
3
TRACKING LOOP
FOCUS LOOP
SLED LOOP
SPINDLE LOOP
WAVEFORM
NAD
3-25 3-26
IC2A2 is defective.
No fucus & tracking control.
Q2A1, Q2A2 are defective.
CD/DVD LD will not be on.