The chances of the large cap in the hot side of the power board being bad are almost non existent, that part very seldom fails. test your PSON voltage after the set has shut off and see if you have about 3 volts there, if you do then the main board is working ok and its in the power board, next thing to test is if the power factor correction is working, if its not working correct then look at components in the hot side of the power board, if you see PFC working ok where the voltage of the large filter cap rises to just under 400VDC when the set powers on then look at issues with the cold side of the power board, remember when testing the hot side you can not use chassis ground, the low side of the bridge rectifier must be used as the ground ...good luck!!...other option if you determine you have power board issues is to replace the board verses service it yourself, some power boards can be kind of spendy though where they can usually be fixed for a few dollars.
SOURCE: My TV (Sony Bravia LCD KLV-32S310A) goes of after
Hi,
6 times blink shows problem with back light inverter board.
TV requires back light inverter board replacement. If you have electronics repair experience and want to repair TV by yourself, let me know to guide you part purchase.
SOURCE: Sony KLV-32M1 LCD TV switches off/on
Hi,
Check capacitors and soldering around power supply and inverter.
You can download service manual from elektrotanya:
http://elektrotanya.podzone.net/?q=showresult&megnev=sony&megnev2=KLV-32M1&kategoria=&kat2=schematics
SOURCE: Sony Bravia KLV-32S310A model -
If the power supply was given a clean bill of health by a reaputable source, then most likely a faulty mainboard
SOURCE: sony bravia KLV-32S310A 32 in LCD TV picture calibration setting
Why and what are you trying to calibrate?
SOURCE: Hi,this is Prasanna(technician)No picture no sound
Over-current protection. Check for any shorted component/s at its back-light inverter board. If you wish to get some details, check this link. http://electronicshelponline.blogspot.com/ Selecting the view option, either to Mosaic / Timeslide / Flipcard, can be selected by the drop-down list, at the top left of the display window, will make surf easy. You can also do a search, by type in the brand name / model number / IC used, in the search box at the top right of the display window.
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