Search: CM4440 CM4450 CM4640
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Results: 1
CM4440 CM4450 CM4640 Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| LG |
CM4440 CM4450 CM4640
|
Mute and/or s-protect | Pvdd power supply missing | Check the q901 and d951, replace the zd912 (20v) in the power supply primary | Baguatech |