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ONE POINT REPAIR GUIDE
6. NO USB
When unit is connected to USB, no audio and video from SET.
6-1. IC501 (MT8563)
6-1-1. Solution
Change IC501 (MT8563).
6-1-2. How to troubleshoot (Countermeasure)
1) MAIN board : Check CN104 connector and FFC cable.
JACK board : Check CN202 connector.
2) If there is short soldering on CN104, re-soldering CN104.
If there is short soldering on CN202, re-soldering CN202.
3) If problem still occurs, check 5 V (CN104 pin11 ~ pin15).
- If no output, check MAIN board IC154.
- If OK, check D+, D- signal.
- If there is no signal, replace IC501.
6-1-3. Service hint (Any picture / Remark)
< MAIN board top view >
< USB/ PORTABLE/ MIC board top view > < USB/ PORTABLE board top view >
CN202
CN202
CN104
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