SOURCE: sony bravia kdl-52w3000, turn tv on, no picture or
Most likely this is caused by a defective main board. Changing the main board will fix the issue about 95% of the time.
To be absolutely sure, the voltages need to be checked on the power supply. If they are not the values listed in the service manual, then you should replace the power supply instead (accounts for the other 5% of the time).
SOURCE: Sony Bravia KDL-40S2000 40 inch
We have the same problem.. Checked the Sony site after a few clicks got to: http://www.iq.sony.com/SRVS/CGI-BIN/WEBCGI.EXE/,/?St=966,E=0000000000761838071,K=1708,Sxi=1,Case=obj(460991),VARSET_OBJ=460991,VARSET_TSRC=results,UseTemplate=case.tem,VARSET_TOP=TRUE
We followed the 'simple' troubleshooting tips then called the service center. As mentioned above 4 blinks indicates a bad panel. The repairman that visited said that he is ordering a new power supply (much cheaper than the back panel) for their first try. I will post again when my set is back on.
SOURCE: sony kdl-40s2000 won't stay on and blink red 4 times
I think the problem is the t-con board, Part #
1-789-499-11, cost about $200.
SOURCE: Sony Bravia KDL-V40XBR1, no picture
You either have failed 24vdc power supply section or failed backlight inverter board, check for 24vdc first, look for caps with leaking/bulging top.
Parts: http://www.shopjimmy.com/catalogsearch/result/?q=Sony+BRAVIA+KDL+-V40XBR1+
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net
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Do you have any idea which board it could be? And where I can get it?
Sorry, Not with out taking a look at it end checking it out it is (Impossible) To stay what one mess up.,With out the right test (Equipment)
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