Sony trinitron about 12 year old keeps turning off for no reason, must be something loose inside because if you tap the top of the tele it will come back on momentarily is it worth getting repaired or are we putting good money into bad ?
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top half missing is in vertical circuit of set---if it is a 27 inch and this old consider retiring it and replacing----other option is consider having a shop repair it--a rough guess would be as high as 150 dollars parts and labor is possible for your problems.
no ....the tube will end up after 20 yrs in 10 yr old sony... it is worth if u fix it. randomly going black means...horizontal driver trans former is the problem..or any loose contact with the 110 volt supply to that transformer,,or any loose contact with line o/p transformer.. (horizontal driver transformer may be gone then tv behaves like this) if any other parts gone tv wont come back.... there may be a loose contact call a service pro..
How much later? The Sony sets have a setting in the menu that turnes the TV off if there isnt' any input, Sometimes this feature gets messed up, and the feature has to be turned off, Check that out and see if that takes care of the problem.
The 2 blinks are an indication of over-current. This is usually because of a shorted component. The most common is the horizontal output transistor. This will be a 3-legged part attached to a heat sink close to the flyback transformer (part with red wire coming out the top). This transistor will be marked C4856 or something similar. Update this with the exact marking and I'll provide you with the full part number and approximate cost.
The screen control inside the set may be on the highvoltage transformer or on the crt socket; either way if you can turn it up just a little clockwise and the picture comes up but doesn't look good you are likely to have a bad tube. Or try tapping lightly on the glass neck and watch the picture as you tap. If it reacts to the tap you have a bad tube. but the turning the screen control is the best test. Turn it the other way the picture goes off immediately. bad tube: too costly if it is available.
Are you serious? You have used that television... in particular that CRT well beyond its predictable lifetime. Congratulations. Those are early symptoms of CRT failure. Your screen may turn green very soon also. It will occur any moment now. It is not cost-effective to repair. Welcome to the next generation. You will be amazed and delighted with LCD, plasma or DLP technology. firstname.lastname@example.org
Volume is too low on my old Sony Trinitron KV-27S45
Can i fix it with out parts?
no as it requires tech help as tv is high voltage device.
would it be less expensive to just purchase a new tv?
it would be less expensive.
no need to purchase new tv.
please get check
1 speaker paper cone might be hard or defective
2 loose contact in sound section
3 supply to sound might be absent.
4 connector loose.
5 any capscitor defective in sound section.
6 ic might be defective in sound section
hope this will help.