Question about Sony KV-36XBR400 36" TV

Sony 32XBR400 Wont Power On

About a month ago my set started having a hard time turning on. It was taking longer and longer for the picture and sound to come on until last night when it just stopped working. I can hear the relays clicking as it attempts to power on but after about 30 seconds it goes back to standby. I have read about the blinking standby light diagnostics, but it blinks about 10-11 (not sure if the first power on blink counts) times and the previous messages only talked about problems up to 8 blinks. I removed the rear cover and looked for burned resistors and loose or cold solder joints. There was nothing obvious found. Do you believe the set is too far gone or might there be an easy fix?

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Mike Longo

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I do not believe the set is too far gone. The standby light blinks codes up to 7. If the standby light blinks more than 7 times it usually means that there is a short on the clock or data line. There are several small zener diodes connected to the clock and data lines in a couple of different places on the main board. Many times I have seen one of the zener diodes become very leaky, usually along the back of the board, loading down the clock or data line which produces the symptoms you are seeing. If you have no experience locating shorted zener diodes and unsoldering and soldering small parts, allow a qualified tech to service the set for you.

Posted on Aug 29, 2007

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