Master 39-s Led Lcd Tv Repairing And Screen Bypassing Book Pdf | Free Access

| Fault | Stupid Fix | | Risk | | :--- | :--- | :--- | :--- | | 2 sec to black | Replace all LED strips | Zener across 1 dead LED | Slight dimness | | Vertical lines on half screen | Replace panel (impossible) | Cut VGH/VGL to shorted tab | 1-2mm line remains | | No picture, sound works | Replace T-CON | Inject external VGL/VCOM | Overheating if wrong voltage | | Main board dead | Buy new main board | Force BL-ON + inject HDMI signal via LVDS converter | No volume control | | Protection shutdown | Replace power supply | Remove protection FET (on high side) | Risk of fire if short remains |