Three NT61303H-C52A2B gate COFs are utilized in the Innolux V420HJ2-P01 C3 panel. The logic (T-Con) board of this panel comes equipped with an IN518 DC-to-DC converter IC and a CS11102 T-Con IC. These 42-inch Full HD (1920x1080 pixels) panels by Innolux are widely integrated into various prominent LED TV brands worldwide. If you encounter panel issues such as No Display, White Screen, Vertical Lines, or a Black Screen on your TV, it is highly recommended to inspect the T-Con board voltages before working directly on the NT61303H-C52A2B gate COF (gate driver) circuit. Below is the reference voltage chart for this panel. Please note that depending on TV firmware variations, software modifications, and screen sizes, these power management voltages may vary slightly. Additionally, if the screen exhibits high brightness or low contrast image issues, do not forget to test all gamma output voltages along with the gamma reference voltages.
T-Con Board Main Voltages Reference:
- VGHP (VGH): 30V
- VCOM: 7.4V
- VGL: -5.1V
- AVDD: 17.5V
NT61303H-C52A2B COF Datasheet for LED TV Panel Repair
For repairing the Innolux V420HJ2-P01 C3 LED TV panel, the detailed test point voltages and pinout data for the NT61303H-C52A2B Gate COF are provided right here.
When troubleshooting panels or COFs, one critical structural aspect must be kept in mind: even if the VGH (30V), VGL (-8V), and VCOM (8V) voltages are absolutely perfect on the logic (T-Con) board, you might measure slightly lower values (a minor voltage drop) at the test points of the gate COF itself. This occurs because the electrical signals travel from the logic board through extremely fine, thin Indium Tin Oxide (ITO) tracks inside the glass panel, which possess an inherent internal sheet resistance. As the physical length of the glass increases, this microscopic resistance causes a minor drop in voltage parameters. Therefore, seeing a slightly lower voltage at the COF test points should not alarm you; it is simply a standard structural characteristic of LCD panels.
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| NT61303H-C52A2B Gate COF Datasheet and Bypass Voltage Points for V420HJ2-P01 C3 LCD Panel Repair. (Source: Ornate Pixels) |
| Pin/Point | Signal Description And Voltage Details |
|---|---|
| 1 | VGL: -7.4V |
| 2 | VDD: 3.3V |
| 3 | VDD: 3.3V |
| 4 | OE 1 (Output Enable 1) |
| 5 | OE 2 (Output Enable 2) |
| 6 | VGH: 33V |
| 7 | GND: 0V |
| 8 | CKV: Approx. 3V |
| 9 | VCOM: Approx. 8.5V |
Explore More Gate COF Datasheets
If you are troubleshooting other LCD panels, you can explore our comprehensive collection of COF data and bypass pinout charts across the following pages:
- Gate COF Data Collection (Page 1): Includes detailed pinout configurations for NT39563H-6502B/A, NT39562H-C12G9A, NT39563H-C6502A, NT61228H-C6809A, and NT61227H-C1217B.
- COF Points and Datasheets (Page 2): Featuring essential repair data for NT39530H-C5204A, ILI5760 M2CB1, NT39538H-C1272A, RM76190FA-0A0, and NT61237H-C6523A/A.
- LCD Panel COF Specifications (Page 3): Access schematic diagrams for NT39530H-C5204A, ILI5760 M2CB1, NT39538H-C1272A, RM76190FA-0A0, and NT61237H-C6523A/A.
- Gate Driver Pinout Database (Page 4): Contains bypass procedures and datasheets for RM76H30FA-L04, S6CG331-58, EK73535S048A, 8656-MC607, and MT3807VC.
- Get COF/TAB Data and Voltages (Page 5): Technical guides for RM76320FB-61A, NT61237H-C6523A/A, NT39530H-C5203A, RM76370FC-80K, and NT39567H-C5286A.
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