yes another Polaroid TLA-01911C question
What could it be do you think it's bad caps ? OK from the beginning at first I began having trouble with the sound. Sometimes it would come on without it so i had to turn it of then back on sometimes twice. Had that going on for a while then month's later the real trouble began. I went to turn it on and I got a white screen with what looked like faded pixel moving around.So I was like hmm so I turn it off then back on it worked like normal again.Then later when you would turn it back on the same white screen again same weird pixel's.Long story short I would have to turn it on and off like 5 or 6 time's to get rid off the white screen. And ohh yeah it would also make a weird speaker noise when going off or coming on.But once you got it back on the tv would play fine for hours until you decide to cut it off.Then the same old story of off and on.So I got tired and started looking for a solution and read it could be the caps. So I took the tv apart and checked.Yeah I got 4 caps starting to bulging outward. But from my description do it sound like bad caps.Yeah im just here basically looking for a second opinion. And also could I use caps from other components of course the same caps I got plenty lying around Anyway thanks for reading this.
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Re: yes another Polaroid TLA-01911C question
Well the bad caps you found need to be replaced with correct type for switching power supply circuits which have low ESR value, such as PANASONIC FM/FR series, or FC series. Generic may or may not work properly but it will not last for sure. Bad cap can also look normal, you will need cap meter that can read ESR value to know for sure.
Post good clear pictures of the boards using attachment function.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809 -
Re: yes another Polaroid TLA-01911C question
Thank you for the quick reply and your offer to help. But I dont have a digital camera. Best I could do was i found a picture same model board. I marked the caps that are beginning to bulge.So im just wondering if those caps are bad should I just toss it. And just look for a new tv and yes those caps I have lying around their the same thing as the one's bulging just in something else im not using so im guessing should work if the cap are the problem.thanks agian for your helpAttached FilesComment
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Re: yes another Polaroid TLA-01911C question
I would try replacing with the caps that you have with the same value and voltage (higher voltage is OK) just to find out if it will work for now.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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I know I've been a little scarce lately (like the last 2-3 years), but I'm still here and still doing my thing with fixing PSUs.
For today's considerations, I have a Seasonic B12 BC-550 [A551bcafh] 550 Watt ATX power supply for you (click on links for full size images).
https://www.badcaps.net/filedata/fetch?id=3591771
https://www.badcaps.net/filedata/fetch?id=3591772
It's a modern ATX unit with fixed (non-modular) cables and an 80-plus bronze certificate. Here's the label:
https://www.badcaps.net/filedata/fetch?id=359177... -
Hello,
First, I am a complete noob with high voltage stuff. I'm learning, but I need help by someone looking over my shoulder.
I recently came into posession of a Heathkit IO-4205 5MHz Dual Trace Oscilloscope. The documentation is copyright 1978. I'm told it works.
I opened it up to check the caps before I applied power, and found the following black caps and wanted to know what they were. They are on the power supply board. I was able to read the name and model and came up with, "Nytronics 162J-1, 0.1uF, 20% tolerance, 2000VDC."
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Hello!
I have two projects on my work bench. One is a friends dead JBL Xtreme speaker with a blown voltage regulator and corresponding bulged and shorted cap. That cap has clear markings so I know what replacement I need for it.
The other project however is a whole different deal. It's a Zoom 9000 guitar effect from the 90th that has developed a devil hound howl when there is no input from the guitar. I'm guessing caps problem. So, since I don't really use this effect anymore I thought it would be a perfect project to learn on.
I have studied the board and... -
I'm trying to repair two old VCRs, they both have bad caps. One has leaky ones, the other would barely run until I subbed in some caps from another power supply I had laying around (though they are the wrong values). This vcr works for an hour or two, but then the power supply starts whining and the picture gets lines in it. I didn't replace all the secondary caps, so another voltage might still be problematic, or the values I used are too far off.
I've been on mouser and digikey but the options are a bit overwhelming. I just need some new ones that will work. They don't need to be top quality,... -
Good evening
I recently aquired a rev 1.1 Gigabyte 60XT, and was suprised of the amount of leaking caps for a motherboard of the P3 era. Especially the way the 330µf caps seems like the housing discolored even.
Now, there are some 3300µF 6.3V KZG series around the CPU. Would it be OK to replace them with something like EEUFR1A332 ? (Panasonic FR 3300µF 10V). Or was this board designed around very low ESR caps?
But I was also suprised about the bigger boys, which are 330µF 25V.
Could it be they used 25V caps because they were cheaper / available at that time?...
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