Hi, Our seven-year-old Sony Wega recently started having problems. Typical behavior on power-up is a black screen for 5-10 minutes, followed by flickering (the screen turning off and on every two to three seconds). As time went on, the flickering went on for a longer period. Now the screen cycles off and on during any scenes with high brightness.
At the same time, the color balance has gone way out of whack. The image is now green monochrome and very low contrast. The blacks are medium green.
I went into the service menu to see if any adjustments could be made, but attempts to change the red and blue settings did very little.
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Re: WEGA 36" : Screen is low contrast and green
Sorry to say, it sounds like a bad picture tube, But could be also the capacitor that filters the screen voltage on the crt drivers. In all my years though, your complaint has been the picture tube. Good Luck.
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This usually means the Lamp is failing. Replacing the Lamp usually fixes it. I would only use a Sony Replacement.
You can order one from Sony at 1800-222-SONY or you may be able to pick one up from a local Sony Retailer.
5 times Red LED blinks means Lamp Driver Error. (KDF-55WF655) 2 possible reasons, either Lamp is gone or Ballast Supply got bad. Replace lamp first, in most cases it solved the problem. How old is this TV and did you replaced lamp recently? Thanks.
This could be a scan amplifier failure, and there is a loss of high voltage to the CRT. Part of the power supply may have also failed. In these sets, if the CRT emission goes low in emission, or the CRT goes defective, the bias supply to the CRT will go in to protect.
An experienced TV service tech can troubleshoot the set and give you an estimate for service. Considering the age of the set, the cost of service may not be worth it.
If you are not a professional Electronics guy,it is beyond you to tackle this problem. otherwise log on to www.free service manuals.com and see the SONY Blink codes and also download the service manual.best of luck
This seems to be common problem with Sony projection tv. I have the KDF-E50A10 that lasted only 2 years. It's sitting in a corner now until I figure out what to do with it. I am not going to spend another grand to repair it!! Never Sony again.