Hi All, sorry for a noob question but here gos.. I have a Samsung 46'' 650 Series LCD tv with some bad caps. I had two replaced last year under warranty and now the other two are bulged out and need replacement. My question is if I take out a 1000uF 25v 105c capacitor can I replace it with a 1000uF 35v 85c and not run into other issues?? I went to Frys and Radio shack and this is the closest match I could find. Thanks for any advice
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Re: Replacing Bad Caps
For a SMPS power supply (like your TV), it requires low ESR (ohms) caps. Frys and RadioShack do not carry low ESR caps.
General purpose caps are likely to be 85C and not suitable for your TV.
You can go up in voltage as long as the cap will fit (going up in voltage means the cap is possibly bigger).
You can buy a 1000uF 25V cap here at badcaps.net. See
https://www.badcaps.net/store/produc...roducts_id=140
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Re: Replacing Bad Caps
Going up in voltage is not a problem - BUT!
Need low ESR caps.
Neither Frys nor Radio-Shack carry low ESR caps.
85c - Very bad idea. - Life will be short.
If you don't want to do this a third time in the next year or so then get the right caps.
That might well include replacing what was replaced last time. [Even if they don't -look- bad.]
What is the uF, volts, size[diameter in mm], make, and series of the caps in there now?
.Mann-Made Global Warming.
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Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
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You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
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Re: Replacing Bad Caps
Yeah, what he said..... LOLMann-Made Global Warming.
- We should be more concerned about the Intellectual Climate.
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Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
- Dr Seuss
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You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
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Re: Replacing Bad Caps
as far as i know, there are no 85°C caps in the badcaps store. all 105°C.
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Re: Replacing Bad Caps
All the caps in a given series will have the same temp rating.
It's given in the data sheet for the series.
Most places give a link to the data sheets.
Seems Top Cat [site owner] assumed everyone that buys here is familiar with the data sheet info.
If you look at the top of each page there's a note:
"Note that ALL the capacitors listed below are temp rated at 105*C."
https://www.badcaps.net/pages.php?vid=22
https://www.badcaps.net/pages.php?vid=23
https://www.badcaps.net/pages.php?vid=24
He doesn't say on the polymer page but presumably they are also all 105*C.
.Mann-Made Global Warming.
- We should be more concerned about the Intellectual Climate.
-
Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
- Dr Seuss
-
You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
-
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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... -
My 3.5 years old monitor (BenQ SW2700pt) started to black out for 1-2 sec every minute or so, it was doing this even with PC disconnected from it. I searched online and read that it's probably aging capacitors and there's a workaround to lower the brightness.
I lowered it from 100 to 65% and it indeed helped, but after a couple of months the issue returned... I continued to lower the brightness, but it helped only for a couple of hours at most, then I needed to lower it further... Turning the monitor off and waiting for it to cool down also helped for a short time, after which it... -
Hi
Recently I got this tagan tg380-u01 PSU with bad caps on 3.3v rail (the line was 2.5v no load!). Replaced them but no go, so I've replaced all of them, apart from some smaller ones and one under the secondary heatsink. Even that didn't help so I've replaced the others. All caps are known good ones.
Powered it on and heard the breaker pop. Opened it up and saw some smaller caps shorted together. Fixed that up but still it trips breakers. Now I get 0ohms from 5v to GND. Secondary heatsink removed and still a short, even with the PWM IC board removed. All diodes on that... -
nichiconare what i used because i had heard the voltage doesn't matter as long as it is more than the original cap. i'm now reading that high voltage may make the cap's esr too high. is this a good cap for replacing those oem ones?1500 µF 16 V Aluminum - Polymer Capacitors Radial, Can 8mOhm 2000 Hrs @ 105°C -
I'm recapping an old Creative Labs / Cambridge speaker system / subwoofer. At 4:33 in this video, the person looking at what he says are the speaker caps in the system says they are 470 uF, and that he'd use much larger caps if he was building it.
https://youtu.be/1LRIzePlma0?t=273
I'm wondering if I should use something larger for the recap job, and what using larger caps will do for it.
Would 680uF be good value to try in place of the 470uF originals?
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