Fogging problem (i.e.) screen is foggy at start up but clears 20 to 30 mins use.

according to your observation we called abnormal picture & common mode choke coils are defective l3000,whech are near to LVDS connecter there are 3 coils & must change all coils after replacing these coils your set will ok

It is possible that the image sensor which is the CCD- charge coupled device is faulty and will need a replacement. However it is important that the OE part is required and so is best to take consensus with Sony spares and service.

as this is a rear projection tv, I wonder if the lamp is fogging up when not in use? is the area where the tv is situated damp at all or could something have been spilt into the set?

Three things you need to do:

1) Take the back cover off and clean the:
a) Mirror with glass cleaner
b) The dust that collected on top of the CRT lenses


2) With tv unplugged, use a flashlight and look down the lense of the blue, green CRTs. There is fluid in there. If the fluid is not clear, then it needs to be replaced and the tv re-aligned. Not recommended for anyone without experience.

Cloudy fluid is typically indicated by a foggy picture. THis is assuming you have a standard 3 CRT rear projection TV.

It sounds like your lenses, mirror and screen needs cleaned from the inside. I have a tip at http://www.fixya.com/support/r4690955-clean_lense_screen_in_projection_tv which wll explain the process and walk you through it.

Thanks for using FixYa and for the generous rating.

hardrocko

is screen is foggy/image formation is foggy,chaque the lens unit

It sounds like multiple problems. First of all these sets are famous for bad coolant between the tubes and lenses causing the picture to be degraded causing the foggy picture. The fluid can be changed to clear up the halo's. The double images are convergence issues. Most likely both convergence amps need to be replaced. I hate to say it but it sounds like you got a money pit. Good luck. Thanks for using fixya.

U needed CRT coolant,U have a halo white screen too?Try this wbsite.Tv repair World.com check it out buy and replace the coolant or convergence kit,must know how do soldering to change convergence parts.Or if u have any colors lines mismatch at all than it the convergence.

Check convergence adjust screen after picture distorts.

Description sounds like shading from a defective convergence circuit. If you replaced STK392-110 with 150, then re-install new 110's, or new 150's and re-design the circuit and change low-ohm resistor values to compensate for different IC's. It is not the same as a brighter light bulb.

See if the picture is in the CONVERGENCE GALLERY


easyab

The lines you saw, i;m sure they are the ones called retrace lines but know the failure could be located on the red CRT board. Most likely the video amplifier is defective and not necessarily the CRT.
What is the model number of your TV?