Unlike mass-produced Samsung or Delta power boards, the TPV56PB801 is a proprietary design by (Top Victory Electronics), which manufactures for Philips, AOC, and ViewSonic. TPV rarely releases full service manuals to the public. Most third-party repair databases host only fragmented copies.
The Primary side (hot ground) contains lethal voltages up to 400V DC. Capacitors discharge slowly. Always discharge the large 450V capacitor (C605) with a 10k ohm resistor before probing. The Exclusive Pinout Analysis (Standby Connector CN955) Most "dead TV" faults start here. Without the official diagram, you might confuse the PS-ON and BL-ON lines. Use this exclusive mapping for CN955 (12-pin connector to the main logic board):
Why? Because it is not just a power supply; it is an integrated and Inverter combo. When this board fails, the TV either refuses to power on, clicks incessantly, or turns on for two seconds before going dark. tpv56pb801 schematic diagram exclusive
Repair with confidence. You’ve just unlocked the exclusive secrets of the TPV56PB801.
Whether you are fixing the 5VSB standby using the Viper22A circuit or hunting down a short in the 24V rectifiers, use this guide as your map. Remember: high voltage is present. Measure twice, solder once. Unlike mass-produced Samsung or Delta power boards, the
| 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 |
| Block | Function | Key Components | | :--- | :--- | :--- | | | Filters AC noise; generates 5V Standby (5VSB) | T3.15A fuse, Viper22A (IC901), Transformer T901 | | Main PFC | Boosts DC bus to 380V-400V | L6562D (IC601), Power MOSFET Q601, D601 | | Main Switcher | Produces 12V, 24V for main board & audio | NCP1200 (IC201), Transformer T201 | | Inverter | Drives CCFL backlight tubes (20+ lamps) | OZ964 (IC701), MOSFETs Q701-Q704, High-voltage transformers | The Primary side (hot ground) contains lethal voltages
Below is a quick exclusive reference table without the need for the full PDF:
English (UK) 
Nederlands 
Français 
Deutsch