Question about Hitachi 53UWX10B 53" Rear Projection Television

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No picture and the power light is going on and off consistently

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Re: No picture and the power light is going on and off...

The most common cause of no video is due to the vertical output section failing. If this is the case the TV will still have sound from the program that the TV is tuned to. If you do not have sound the TV may have a main power supply problem. To find out if the high voltage is still operating you can remove the rear cover and turn the TV on to see if the filaments in the picture tubes are glowing. A no high voltage problem will require some basis troubleshooting of the main power supply. In many of these TVs I find that the horizontal output transistor will short out and this will shut down the main power supply.

Posted on Jan 09, 2008

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I see so many people here with nosound /picture issues:


1. If sound main fuse/s are good.
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2. RE:power supply: if total dead aside from main fuse set uses Standby powerand main power supply (some standby is on separate board but most are combined.

Here aside from checking fuses you want to examine all the filter caps to seeif any are puffed up or buldged in some fashion; I attach a photo: top shouldbe (silver metal) perfectly flat and have no brown material coming out on topor bottom---l can give you a description if needed here why they fail---too lowvoltage rating causes them (standby area) to overheat and fail in a average 1-2years= The standby is running 7/24 when set is plugged in.

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Consider contacting company who made set for information to see if your problemis a common one that their data base has ideas about.

Also GOOGLE the model number with either "parts" "problems"or "manual" as a lot of information is available for free.
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