SOURCE: Westinghouse lcd tv ltv-27w2 no picture or sound
power supply first one...second one input hdmi pcb defective..
SOURCE: Westinghouse LTV-32w6 power light on, no video, no sound
One thing is to make sure the inverter board is unplugged when testing the voltages. A shorted inverter will shut down the power supply if the fuse dosen't blow first. There are fuses that don't look like fuses so they can be missed. The next thing would be to look for a connector from the main to power supply and see if there is a pin labeled power on or p.on or similar. The main board should turn this line high(5V) when you push the power button. If not you probably have a bad main board. Unless you can find good used boards they are both expensive. Around $200 for PS and $300 for main.
SOURCE: westinghouse 42 inch lcd flat screen tv
only get sound from my 42 lcd screen fro westinghouse, no display
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