I am assuming that if one is not sure whether a cap is blown or not, it's likely a good idea to swap it out...
Just A General "Does This Look Blown To You??" Question
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Re: Just A General "Does This Look Blown To You??" Question
Is this a Hitachi plasma power supply? The 100V caps bulging is a common and well known issue with these.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search. -
Re: Just A General "Does This Look Blown To You??" Question
It IS a Hitachi... Seems to work OK which surprised me. I thought for sure those were blown...Comment
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Re: Just A General "Does This Look Blown To You??" Question
I have an Hitachi plasma my self, I'm still getting around to fixing it needing a buffer board but from what I remember from my research about these particular caps is when they start bulging, they produce an instability which can take out the lower/upper buffer board, someone somewhere said something about it being a higher voltage is produced but I can't back that idea up, needless to say a change is probably a good idea.Comment
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Re: Just A General "Does This Look Blown To You??" Question
I have an Hitachi plasma my self, I'm still getting around to fixing it needing a buffer board but from what I remember from my research about these particular caps is when they start bulging, they produce an instability which can take out the lower/upper buffer board, someone somewhere said something about it being a higher voltage is produced but I can't back that idea up, needless to say a change is probably a good idea.Comment
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Re: Just A General "Does This Look Blown To You??" Question
Good points all.. Thanx for all the replies. Much appreciated...Comment
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Re: Just A General "Does This Look Blown To You??" Question
Yea, I already took my air compressor to it.. What a mess..Comment
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Re: Just A General "Does This Look Blown To You??" Question
Let's say, for the sake of a discussion, that I ignored the great advice I received and left the (apparently) blown caps in and ran the TV all night...
Let's further postulate that, when I came in the next morning, shocker of shocks, the TV had died...
What boards did I likely blow??
I did replace the caps (day late/dollar short comes to mind) but the TV still won't come on.. I hit the master power button and the RED standby light comes on and it immediately goes to BLUE which is labeled ON.
I hear a distinct relay CLICK when the master power button is pushed and a faint relay click a few seconds after the light goes BLUE..
Nothing appears obviously blown, but I know enough to know that doesn't mean much...
Where should I look first??
For the record, this is a Hitachi P50T501Comment
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Re: Just A General "Does This Look Blown To You??" Question
Buffers and Y-sustain, usually. Maybe Y-sustain survives?Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Just A General "Does This Look Blown To You??" Question
"A man who carries a cat by the tail learns something he can learn in no other way."
Mark Twain
DON'T FIX IT. Put it up somewhere you can see it daily as a reminder for taking shortcuts and ignoring the advice of posts 5, 6 and 7.Last edited by retiredcaps; 02-04-2015, 05:50 PM.--- begin sig file ---
If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.
We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.
Please do not post inline and offsite as they slow down the loading of pages.
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Re: Just A General "Does This Look Blown To You??" Question
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Re: Just A General "Does This Look Blown To You??" Question
Never ignore badcaps I learnt that the hard way several years ago, maybe you will learn from this not to ignore them ;(Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
https://www.facebook.com/Telford-Tel...7894576335359/Comment
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Re: Just A General "Does This Look Blown To You??" Question
They are also usless, I use a small ball compressor that generates air as it runs only cost £10 works better than a tank compressor and crappy cans of air.Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
https://www.facebook.com/Telford-Tel...7894576335359/Comment
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Re: Just A General "Does This Look Blown To You??" Question
Around here the air duster cans are WAY too expensive. A couple cans of that and you might as well buy yourself a small compressor.Comment
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