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Danomyte
Joined: 19 Jan 2010
Posts: 1
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 Posted: Tue Jan 19, 2010 6:59 pm Post subject: Hitachi 55hdx62 won't turn on but has power |
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| Gotta 55hdx62 that has power and the red power light is on, however it does not respond to pushing the on button on the side won't enter standby nothin.power supply bord gets power a relay clicks but no joy with anything else. Any help would be great thanks! |
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minnie
Joined: 18 Aug 2005
Posts: 2880
Location: Hell
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| Posted: Thu Jan 21, 2010 12:06 am Post subject: |
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| You have mail. |
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Guest
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| Posted: Thu Jan 21, 2010 12:52 pm Post subject: |
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| thanks Ill give it a try! |
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Sean C
Guest
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| Posted: Mon Jun 27, 2016 9:39 pm Post subject: Same problem |
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| I am having this exact issue and would love to know if you found a solution. |
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Guest
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| Posted: Tue Oct 20, 2020 2:04 am Post subject: Re: Same problem |
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| Sean C wrote: | | I am having this exact issue and would love to know if you found a solution. | If you have blue screen as well then some leds are dead or about to , so the the strips with dead led need to replaced. |
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jts1957
Joined: 24 Nov 2008
Posts: 2476
Location: Far, Far Away
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| Posted: Tue Oct 27, 2020 3:30 pm Post subject: |
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In a Plasma TV? 
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tkfcuoly
Joined: 31 Aug 2021
Posts: 1
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| Posted: Tue Aug 31, 2021 6:53 am Post subject: |
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Hey guys, recently I repaired a Hitachi 55HDX99 Plasma TV with help from you guys on this thread.
The problem ended up being a shorted buffer IC on the upper buffer board.
After the repair, the TV was working fine and we used it on and off for about 20hrs. However, the last time we were using it, the TV just turned off in the middle of watching a show. There was no power at all and the power button did nothing.
Unplugging the TV and plugging it back in makes all the relays click and the power light starts flashing blue. After a couple flashes, a relay on the power board clicks and all power is cut. I tried disconnecting the upper and lower buffer boards one at a time to see if another chip had failed but this made no difference. The symptom is also different from the bad buffer chip.
If anyone has any ideas on what to look at first I would appreciate it.
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