Question about Hitachi 61UWX10B 61" Rear Projection Television
This is a model that had a lot of problems with the audio.
I worked on a lot of them when they were first made and sold.
What happened was some idiot had the bright idea of placing the entire audio circuit on a single small circuit board mounted on the left inside wall of the set (as you look from the back).
All sound from all inputs and the tuners goes into and out of this board and they mounted the audio output IC chip directly over a number of large surface mounted chips---heat from the chip damages solder connections all over the area around it.
Hitachi did have a service bulletin about this which basically said resolder everything---hundreds of fine connections---surface mounted means most of the fifteen or more chips are mounted on the top or bottom and are soldered to the board---not through the board as is usually the case.
I have seen technicians try to repair them and spend hours and not have success. The board is no longer available from Hitachi and the only way to get it fixed now is to remove it and send it to a national company called PTS Electronics who repairs and rebuilds all kinds of circuit boards.
The last one of these sets I saw was in the shop I work for and we did not fool around as it was under extended warranty---turnaround for the board (you have to remove the one in your set and send it to them) was about 7-10 days and cost was about 150 dollars but you can find their address on the net and ask for a quote---Part number for the Surround Audio board is:
Let me know if you have questions or need advice.
PS: I have seen two people who got around this problem by getting a surround sound system fed directly for audio from their cable box, this may be a much less expensive way to settle this issue.
Posted on May 05, 2010
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Posted on Jan 02, 2017
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