The TV is 10 years old and it suddenly went blank while I was watching a program. When I press the power button, there is no click, picture or sound. Checked the fuse and it is fine. Any suggestions welcome.
This is not an easy fix for most people! I suspect the ps is blown, R607, Q601,Q602 (use all org Sony parts, lots of factory 2nds around). This stuff blows to protect the fuse!!!!! Very rarely the input bridge rectifier or filter cap short. Check R622, if open or discolored also replace VDR601(doesn't go bad very often). Check Horz output Q502. Inspect whole board for any bad connections, all parts with heat sinks(regulator ICs). Horz driver transformer, 0.47uf to horz driver tr. There could be other parts bad (flyback??). Make sure no supplies are shorted, check audio output supply, vert output supply, etc. Easily $150 repair at a shop. Good luck!
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We just experienced the same thing. My daughter was watching TV and it went dead. We could not get it to turn back on. I'm guessing that this model Sony TV had a 13 year life expectancy. I offered it to a local technician who refurbs and sells TVs, and he wasn't interested. He said he doesn't mess with anything over 10 years old because it's too hard to sell. We just went ahead and bought a new LCD HDTV. It's a shame though. If someone were able to fix the old TV, I'm sure a nursing home or non-profit facility could use it. Our only other option is to pay $15 to have it recycled.
Check soldered in fuse R607 in power supply circuit =
If open, replace it and bad converter xistors ( 2SC4834)
Next, replace shorted horizontal output transistor w/ first Quality.
Solder any / all bad connects,esp.horiz drive to base of horiz.
o / p xistor. Soldering is critical or it will blow up again......
If you can not turn on TV set with the power button on the TV its not a standby problem as this would by pass the standby. Theres most likly, on a set of this age, top have a poiwer regulator problem and is going to need a trained tech to assist you in this repair.