local store does not have 680's in any voltage. or any 340 polymers! what is the closest i can get that might work for what i need! have friend in big city going to store for me! have been doing search on it, but runnen out of time, please an tanks!
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Re: substitute cap for 680uf
eh, if its not a circut on a motherboard VRM, I would not recommend going half with a polymer. a 680 or 820 polymer should be fine
a 820 lytic should be fine to, just make sure the esr the same or lower, unless its a general purpose circut (not one that needs like computer-like power filtering)
oh yeah and make sure the voltage is the same or more. It can be more. even double most of the timeCap Datasheet Depot: http://www.paullinebarger.net/DS/
^If you have datasheets not listed PM me -
Re: substitute cap for 680uf
sorry, should have stated was out of rca 51 inch lcd psu. on the out side to main! they sit under a heat sink so size may be issue! will call store an see what they have, thanks for your time!
the store caries nicolson an illinos caps! went through bad cap/company list an did not see them listed, so here's hopen.Comment
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Re: substitute cap for 680uf
we only have 3 stores in edmonton i guess that suply components an none have 680 or 820 or any polymers! bs i say!! lol. online i go! o wait i here! haha going shopping!Comment
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Re: substitute cap for 680uf
caps needed are
1000uf 16v 105c 10-15,, checked badcaps stoock an have nichicon h2 1000uf 16v 105c 10-16. should do!
1000uf 35v 105c 12-25. in stock are rubycon zlh 1000uf 35v 105c 12.5-20. will the 5 mil on height matter?
680uf 25v 105c 10-20. in stock are rubycon zlj 680uf 25v 105c 10-16, again, will height matter? thanx for your time!Comment
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Re: substitute cap for 680uf
We dont know if height will matter - only you can tell the space they have to fit in. As a general rule you get the largest size that will fit in the available space for the uf and voltage required.Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
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Re: substitute cap for 680uf
thanks Selldoor, they under heatsink! so will fit better then the last ones! lol.
peaceComment
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Re: substitute cap for 680uf
ok, NEVER use polymers like this on that type of circuit. In addition, the half rule DOES not apply cause tv/monitor type power circuits usually too much voltage. The only times you'll usually run into polymers that high a voltage are ones with low uf, like 330 max, You might be able to get away with using 16v 820's polys to replace those 16v 1000's though. But iv'e heard bad stories about using polys on 120 AC->DC filtered circuits resulting is very poor performance
the rest of them, use lytics only. And don't use crap ones. General purpose lytics on these types of circuits don't last long, if work properly at all.Cap Datasheet Depot: http://www.paullinebarger.net/DS/
^If you have datasheets not listed PM meComment
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Hello again Community
Anyone verse on how you go about choosing a substitute mainboard for your TV repair. Like the chap in the video below sometimes a 1:1 replacement board is too expensive and reballing a mainchip(s) maybe outside of your skillset
. In the video the poster states one needs to match the replacement board with the SMPS, T-con (if not built in) and panel (and substitute cabling be also be required).
I'm very interested in choosing a suitable replacement board for any model or make of TV and the general (or detailed if your willing) step this entails....03-23-2024, 02:55 AM -
Hello everyone,
I'm working on repairing a Music Store Professional GO! SUB 18A bass subwoofer, and I need some help troubleshooting an issue with the power amplifier board. The board uses an IR2153 driver and originally had two SLW20N50C MOSFETs. Unfortunately, these MOSFETs burned out. I replaced them with two TK20J60W MOSFETs; however, these also failed almost immediately.
Here are some details:- SLW20N50C (original):
- Rated for 500 V
- Typical RDS(ON): 0.21 Ω
- Continuous Drain Current: 20 A at 25°C (13 A at 100°C)
- Pulsed Drain Current: 80 A
- Avalanche
- SLW20N50C (original):
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Hi,
I have a Yageo 400V 680uF that is currently measuring 580uF (Measured by UNI-T UT603). Does that normally qualify for replacement?
Details: Siemens tumble dryer getting Error 25 after an hour or so, on all last 3 runs.
I checked the circuit boards quickly and this capacitor sticks out, nothing visible, not even bulging though. It costs 12euro, so I'd like to get your feedback first. The main thing on that board seems to be a motor controller (for the compressor) https://www.mouser.sk/ProductDetail/...xvzUNHBQ%3D%3D.
Thanks... -
Hi All,
Need help sourcing a substitute for ACT remover G-450 in Canada.
Removing glue from Flex Cable on LED TV that I dislodged so I can resolder with ACF tape.
Can someone confirm if acetone will work?
They will not ship to Canada.
Thanks for any help.... -
I've seen enough reviews of AIXUN T420D on YouTube and decided to try it. One handle defective from the inside, ruined 3 JBC tips, just destroyed the plastic on the tips. One stand does not work, the soldering handle not drop the temperature. Because the seller refused to return the money, and AliExpress supported him and even PayPal did not help, I can disassemble this piece of shit and see what inside, if anyone is interested. The seller said that the station does not work with JBC handles, but I checked that it works. It's just a pity to connect the original handle to this shit. Beware of order...
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