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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Re: Sony 32XBR400 Wont Power On
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.
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with the fault worsening slowly it points to failing capacitors on the power supply Board which is not uncommon for this brand, there are many repair kits available for this brands power supply boards if you feel you are capable of fitting them try Here: TV Repair Kits MBTV Electronics
or you could consider replacing the whole panel, a bit more expensive but less technical expertise required, shop Jimmy is the largest supplier of replacement boards: TV Parts Universal TV Stands DLP Chips ShopJimmy
First, Have your tv 's circuitry be resoldered. this might be a case of loose contacts particularly along the crt circuitry. the longer you operate the unit at this condition, the faster you are counting the possibility of shortening the lifespan of your tube. 9 years is quite a young age for a unit which has an average of 18years.
Your power supply is going south, I have an old sony with the same problem. The voltage level drops and does not have enough 'kick' to start. It will work better when it is warm. The module will need to be replaced.
You have a high voltage section problem I would not suggest fixing this set on your own. You will need to take this set to the shop. Because there are no user repairable parts inside of the set.
The only time I have seen a Sony set with absolutely no picture and no on-screen menu but no error codes from the front LED, the main signal CXA jungle IC was bad and needed to be replaced. This is something that should only be attempted by a qualified tech familiar with Sont sets.