LG SH7B - Seamless Playback Functionality; Changing Playing Speaker Without Pause; Seamless Playback Notes and Limitations

3-18
ONE POINT REPAIR GUIDE
17. OPTICAL FUNCTION DOESN’T WORKING
17-1. Optical Jack (JK201)
17-1-1. Solution
Replace JK201 on MAIN board.
17-1-2. How to troubleshoot (Countermeasure)
1) If there is soldering problem, please re-soldering pin JK201.
2) Check 3.3 VA of L203.
3) Check the OPT_DET and OPT_SPDIF show signal when optical cable connected (R205, R207).
If it’s weird, follow the stage 9-1 (IC100).
4) If it still doesn’t work, replace the JK201.
17-1-3. Service hint (Any picture / Remark)
< MAIN board top view >
JK201
JK201