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Hitachi 65F59A Power Problem - Shuts Off

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Old 07-09-2016, 09:26 AM   #1
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Default Hitachi 65F59A Power Problem - Shuts Off

Hi everyone We have a Hitachi projection TV model 65F59A, and a few months ago it started acting up, meaning the power would just go off randomly, and they we would have to turn it back on, and it would be fine. It had gotten progressively worse and now as soon as you try to turn it on, you hear a bunch of clicking, and it shuts itself off right away. I took the back panel off and cleaned up all the dust and fuzz, which wasn't too bad, and it helped for a few days, but now it won't stay on at all. I'm pretty handy, and have replaced chips and liquid before, so I'm hoping it is something relatively easy/cheap, so we can get another 10 years out of it. Also, would need a recommendation on where to source replacement parts from. I haven't contacted Hitachi yet, but wanted to check here first. Appreciate any assistance.

Regards, Chris.
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Old 07-09-2016, 10:53 AM   #2
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Take a look at the power supply PCB, look for any electrolytic caps (little metal beer can shaped) with bulged out or domed tops.

If you see any then these caps are bad and need replacing, be careful as these caps have a polarity to them, don't get the plus lead in the wrong way.

A place called Digiky.com will have the replacements you need, just order the same type with the same voltage and MFD rating.




Here is a photo of a good cap (on the left) vs a bad cap
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File Type: jpg Bad vs good caps.jpg (5.5 KB, 14 views)
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Old 07-09-2016, 11:36 AM   #3
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Quote:
Originally Posted by Terryl3 View Post
Take a look at the power supply PCB, look for any electrolytic caps (little metal beer can shaped) with bulged out or domed tops.

If you see any then these caps are bad and need replacing, be careful as these caps have a polarity to them, don't get the plus lead in the wrong way.

A place called will have the replacements you need, just order the same type with the same voltage and MFD rating.



Here is a photo of a good cap (on the left) vs a bad cap
OK, thanks. I will take a quick peek to see if there are obvious caps that need replacing and advise back.
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