Abnormal Servo Operation - LG LHB976 Service Manual

5. ABNORMAL SERVO OPERATION

- The actuator, spindle and sled operation of pick-up are abnormal.
- After changing MD, the motors are abnormal operations.
- After changing Motor Drive IC, the motors are abnormal operations.
5-1. Component
1) MD (Traverse Assembly)
2) SIC706 – AZ4580MTR-E1
5-2. How to troubleshoot (Countermeasure)
1) Check if the input/output voltage of SIC706 (pin5 and pin7) is 1.65 V.
5-3. Service hint (Any picture / Remark)
INPUT
(FROM MAIN CHIP)
4-6
1.65V