Question about Sony FD Trinitron WEGA KV-36FS120 36" TV
I just got this tv. it was given as a gift and I believe moved a little rough. First day the picture was perfect. now the picture is dim and its not as clear as before. the whites do show a blueish green tint to them. I went into the setup by doing the display #5 volume up power sequence and tried to adjust accordingly without any luck. when I turn up the brightness the colors are not sharp.
The crt socket is bad and needs changing
Posted on Nov 22, 2008
I have to agree with Shuttle83. All the symtoms point to a tired CRT. A little vibration would not cause the symptoms you listed. The problem may also be an issue of input power voltage to the TV but it's a stretch. Now how the picture looked so good when first fired up is interesting. Did you move the TV to a different AC outlet? Just wondering if the AC power source or plug connection is an issue. Last gasp trying to help you.
Posted on Nov 21, 2008
This may be a CRT problem. From what it sounds like i.e. dim picture, colors not bright. If you have a background in electronics I would tell you to check the voltage levels on the CRT pins and compare them to the values on a schematic, however if you do not have a background in electronics, I would suggest you taking the TV to your local TV repair shop and have them troubleshoot your problem.
Here is a possible list of things that might be wrong:
1) CRT going bad (The shop can try CRT rejuvenation if needed)
2) High Voltage on the anode not at proper levels (The shop can check this with a HV probe)
3) Video output levels low (The shop can check the voltage and signal levels on the CRT socket board, and on the video amplifiers.
These are the three primary possible issues.
I hope this helps,
Posted on Nov 21, 2008
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Posted on Jan 02, 2017
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