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Yes.... u must adjust the screen voltage going to picture tube....located on the CRT module>>>little board connected directly to picture tube (take back off TV and you will see ) play around with screen control on the CRT module......can be adjusted at times to keep from losing picture!!! tube is bad...i know sure looks good when showing a picture....TRY adjusting screen voltage ( YES while TV is ON>>>CAREFULL ) gl
You cannot fix these by yourself. You'll simply need to call in a Sony-authorized Techie and pay the gentleman his asking fee to diagnose and repair your TVs. It sounds like the flyback transformers are about to say "bye, bye" to you, and this is normal. Sorry to hear about these unfortunate circumstances but nothing in life is guaranteed to last for ever. They do quit sooner or later....Especially the nicer ones! And it may not be worth the cost to repair them.
IT SOUNDS LIKE THE VERTICAL I.C. NEEDS SOLDERING. WHEN IT LOOSES THE PICTURE DOES IT HAVE ERROR CODE 2 ? THE RED LED BLINKING 2 THEN 2 THEN 2. THAT IS LOSS OF VERTICAL. IF YOU SMACK THE SIDE OF THE SET.(NOT TO HARD) WITH OPEN PALM ON LOWER BACK IF THE PICTURE COMES BACK IT IS THE VERTICAL IC THAT NEEDS TO BEE SOLDERED. DON.
if it is white brightlines along with blue back ground please check
1 sypply to blue video output transformer.
2 crt base or connector loose.
3 check components related to blue video ckt & blue video output transistor.
4 blue signal reaching to blue video section
5 verv very rare case if set is old set then there is a possibility of crt.
hope this will help.