If these voltages are missing on your T-CON board, the screen will stay blank: 12V (Main input) 20V to 30V (Gate High) -5V to -10V (Gate Low) 5V to 7V (Common voltage) 15V to 17V (Analog supply) Safety Warning:
: The book details how to identify and bypass faulty gate signals (like VGH and VGL ) by cutting specific tracks on the PCB or modifying the Chip on Film (COF) to restore the picture when standard repairs fail .
The following resources are widely used by professionals for learning screen bypassing and advanced panel repairs: LCD/LED Screen Panel Repair Guide (V2, V3, V4 Series)
Do not tape more than 5 pins or you lose image sync.
If these voltages are missing on your T-CON board, the screen will stay blank: 12V (Main input) 20V to 30V (Gate High) -5V to -10V (Gate Low) 5V to 7V (Common voltage) 15V to 17V (Analog supply) Safety Warning:
: The book details how to identify and bypass faulty gate signals (like VGH and VGL ) by cutting specific tracks on the PCB or modifying the Chip on Film (COF) to restore the picture when standard repairs fail . If these voltages are missing on your T-CON
The following resources are widely used by professionals for learning screen bypassing and advanced panel repairs: LCD/LED Screen Panel Repair Guide (V2, V3, V4 Series) If these voltages are missing on your T-CON
Do not tape more than 5 pins or you lose image sync. If these voltages are missing on your T-CON