Sony wega 50" tv has just started doing this today, tried turning tv on and it attempts to come on but no sound or picture then turns off and the on/off lights start blinking 3 times then pause then a
Hi there are a couple of things that could be happening, there is a power fuse on a lot of sony tvs which might blow, to replace should be done by a technician, he should open the back and check either where the cable meets the tv. inside there might be a fuse there, if not then on the power board next to where the power cable meets the board there is a fuse there. it hould be replaced with the same rating fuse. ALSO there is a known problem on some sony and Samsung sets which might be what you are experiencing, the problem could be the capacitors on the power board where put in a lot rate to save money, they may last for a few years then die. they need to be replaced and it would mean takeing the back off opening the power board removing it, de soldering the parts and soldering new ones in. I would recommend a qualified technician do the job as the board is high voltage and with any job like this there is a danger of eletrocution. the engineer should check the power module to see if any capacitors are deformed or leaking. they should be changed for the same picofarad rate and tempreture rating but for a higher voltage. if say they are 10v then they should be replaced with 13v or higher the higher the better but the physical dimentions must still fit back on the module. there are usually 2 capacitors to change and they cost only a few quid to buy. I got a local electrical shop to fix it for about 20 quid which was better than a new tv.
i hope this was useful
Feb 27, 2013 |