Question about Hitachi 53UDX10B 53" Rear Projection Television

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Hitachi 53uwx10ba Saw your comment and having the same problem with led DP23. I have the schematics but am not a technician and am not sure what to do. Can you help? Thanks, Gil

Posted by gilcurameng on

  • gilcurameng Jul 19, 2008

    you were asking if anyone had the schematics for the tv - I do. Do you still need them?

  • Anonymous May 11, 2010

    Gil, after replacing my burnt FP05 (3amp pico fuse), DP23 was on, only for a short moment as I have a short in my B+ 115 V1 that I need to sort out. I am a technician, but have not done much repairing for the last 15 years, due to a carreer change. I only have an Oscilloscope and a Multimeter at my current disposal. The oscilloscope is quite useless unless you can get power going. When I plug mine in I get smoke from RP24.

    Generally, when a fuse this size burns, it means that there is a short somewhere. The fuse is designed to burn before any devices. Just replacing a fuse will just send power to the short potentially damaging the component it was protecting. the problem can escalate to a point where it is more costly to repair.

    If you are planning to do the work yourself, I can give some advice. But I have no experience with televisions as far as electronics goes. I worked with Amplifiers and mainframe motherboards.




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Radio Shack (in New york city) has a small,inexpensive in\out transistor checker. I live in Deltona,Florida and have not seen it or any of the tester kits that I use to find in NYC.

Posted on Jul 30, 2008



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Gil, thanks, I found it. It was a 20mb pdf. I used it to isolate my short. I need to find time to remove the board (Again!!) and do some measurements. I want to look at Q701, Q707 and Q777.


Posted on Jul 19, 2008


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