Pw.188w2.711 Schematic Better — Official

The is a common power supply board found in various Sharp LED TV models, such as the Sharp LC-43CUF8472ES. When examining its schematic, several key features and components are essential for troubleshooting and repair:

Controlled by the FAN7930 IC , this stage improves efficiency and stabilizes the voltage before it reaches the main switching transformer.

Retailers and repair forums link this board to several specific TV series: : LC-43CUG8462KS, LC-43CUF8472ES. : LC-49CUG8362KS, LC-49UI73521C. : LC-55CUF8372ES, LC-55UI7252K. Repair Tips Sharp LC-49CUG8362KS Power Supply PW.188W2.711 pw.188w2.711 schematic

– Measure across the AC pins of the bridge (BD1). No diode should read shorted.

| Pin | Signal | |-----|--------------| | 1 | +12V | | 2 | +12V | | 3 | GND | | 4 | GND | | 5 | +24V (LED) | | 6 | +24V (LED) | | 7 | GND (LED) | | 8 | PWM_DIM | | 9 | DRV_ON | | 10 | PS-ON | | 11 | +3.5V_SB | | 12 | GND (standby)| The is a common power supply board found

– With AC applied, measure the standby pin (5VSB) on the output connector. No 5VSB? – The standby flyback circuit (small transformer) has failed. Troubleshoot its controller (often a TOPswitch or VIPer IC).

If you are not comfortable working with high voltage, seek professional repair services. : LC-49CUG8362KS, LC-49UI73521C

The PW.188W2.711 is a multi-stage power board designed to handle the high power demands of large-panel LED TVs (ranging from 43" to 55"). Its architecture typically includes:

For a deep dive into specific repairs, technical forums and repositories like Elektrotanya and Televid-sib are excellent resources for downloading official service manuals and viewing community-tested circuit modifications.

If you have arrived here searching for the , you are likely facing a device that is "dead," stuck in standby, or suffering from capacitor plague. This article will explain what this board is, how to find its schematic, common failure points, and how to reverse-engineer the circuit when the official diagram is unavailable.

– Measure the main input fuse (usually F1, near the AC inlet). It should read near 0Ω. If open, you have a short on the primary side.