Blown main fuse; clicking power supply; completely dead unit Standby buck regulator output coil
It typically supports 1366x768 (HD) or 1920x1080 (FHD) , depending on the firmware loaded. Backlight Driver Specs: 35W Mode: Outputs roughly 40V–65V at 480mA–520mA. 45W Mode: Outputs 66V–94V at up to 600mA.
| Component | Value/Part | Function | Common Replacement | | :--- | :--- | :--- | :--- | | F901 | T3.15A 250V | AC Fuse | T3.15AL 250V | | IC901 | Viper22A | 5VSB Regulator | VIPer22ADIP | | IC601 | L6562D | PFC Controller | L6562D (ST) | | IC201 | NCP1200 | PWM Controller | NCP1200P60 | | IC701 | OZ964GN | Inverter Controller | OZ964GN (use genuine) | | Q601 | 20N60 (600V, 20A) | PFC MOSFET | FQPF20N60 | | C605 | 100uF 450V | Bulk Capacitor | 120uF 450V (105°C) | | D206 | SB5200 (5A 200V) | 24V Rectifier | SB5200 or MBR5200 |
Official full schematics for the TP.V56.PB801 are often proprietary but can sometimes be found on specialized technician forums or document sharing sites: TP.V56.PB801 Circuit and Datasheet | PDF - Scribd tpv56pb801 schematic diagram exclusive
Understanding the TPV56PB801 Universal TV Motherboard: A Detailed Schematic Guide
Here is the definitive, step-by-step method to obtain the official schematic:
Symptom: Sound Present, No Picture (Screen Flash/Black Screen) Blown main fuse; clicking power supply; completely dead
This carries the video data from the main chip to the LCD panel. 2. Troubleshooting with the TP.V56.PB801 Schematic
Here are the key specifications of the TP.V56.PB801 mainboard:
Reduces 12V to 5V for USB and peripheral support. | Component | Value/Part | Function | Common
The TPV56PB801 has revisions (Rev A, Rev B, Rev C, Rev 1.3). The exclusive schematic is useless if you have Rev 1.3 but a Rev A diagram. Look for a sticker near the DC output connector. Your search query must be: TPV56PB801 Rev X Service Manual .
The brain of the board. It processes video signals from HDMI/VGA and generates the LVDS signal for the panel. A 12MHz crystal is connected to the chipset.
Equipped with HDMI, VGA, USB, AV (Video), and a standard RF TV tuner. Schematic Breakdown and Fault Finding
This is a very common issue. A corrupted flash IC ( 25L3233F or MX25L3205 ) can cause symptoms like:
