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Set starts, horizontal and vertical deflection work, HT ok, crt heaters ok, but no sound or picture
I turned the G2 voltage up and noticed a white screen with flyback
lines, frame ok. I detected two badly soldered double diode rectifiers
in the secondary part of the power supply ! I checked all other joints,
and everything was ok !! success
White horizontal line (no vertical deflection)
Check / replace R548, R549
Sound but no picture except for a couple of horizontal colour lines
Replaced the frame chip TDA8356, set now ok
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thir is somecondensers on the tv needs to be changed especialy on pwer supply and vertical circuit it is easy fault but needs technication,,,but first be sure thir is no floresent lamp common with the same supply of the set
Hi andrew, its not a big problem.. Decent TV. but the pixels are DEAD. that means you have to recover them by fixing the LCD. this would cost you around £40-60 for a 32 inch TV. hope this helps!
Sounds like the CRT tubes are going out which is fairly common on Sony. Inside the back of the TV there are 6 knobs - 2 for each color...one is for focus - dont touch - the other for brightness...turn down the brightness just a hair untill the lines go away.
as i've read you statement your tv need to check parts by parts, the one you mention upside trace vertical line, that part control on vertical ckt faulty parts nearly to faded filter capacitor you can directly replace all capacitor of vertical section. the one you adjust is that the playback transformer the upper portion is focus and the lower portion is screen voltage controlling screen voltage supply to crt g2 pin. if you turn this high that resulting hazing sound come from 2nd anode cup.
The original white line problem was caused by improper adjustment of the vertical size for which there is an internal adjustment.
The current problem could come from two different sources, one an adjustment again, the other from a capacitor that is losing capacitance and gaining losses; = sick.
If you are fortunate enough to have a surviving TV repair in your area, none of these problems is expensive to find or correct.
Don't be surprised to find the only TV shop operating out of a messy garage since those of us doing this kind of service are dying off and the price one can charge for labor has shrunken to the point that a real business address is too expensive to have.
This is usually caused by bad capacitors in the vertical circuit. If you have an electronics background you should be able to find the defective ones with an ESR tester .
I have the same problem with the same TV from Tosiba. I think Tosiba know about it but did nothing to repair it but sold millions of the same TV and Made good money. I think we all should soin togather and file a class action lawsuts against the company. They must fix the TV or pay our money back plus pay for our pain and suffering. There are many lawfirm will take this case and get paid from proceed. [email protected]
well i think your husband is right. it might be three years old, but the sligtest damage can kill it. so what you need to do is start saving up for a new tv. sorry for waht happened. maybe somebody hit the screen?
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