Application is on a flyback transformer powersupply circuit board cap is 85 deg temp. 330 uf 16 v cap brand is sm the esr is .10 ohms and the cap reading is 269.8 and tested with atlas 60 cap tester
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Re: Is this capacitor still good
My opinion is that as most caps have a 20% variance on the stated rating that it is not good.
Is there a problem with the Board?
Is the board's application such that a 85 degree temp cap would be working at the top end of its temperature rating.?
Was it in circuit when measured?Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740 -
Re: Is this capacitor still good
all caps are polarized and out of circuit when measured I also have a 1uf 160v the meter reads 1.16uf and 3.6 for esr its not fully working im missing the -15 volts the screen displays a trace but there is no vertical difflection im currently desodering componets and testing them out of circuit. its sealed in a aluminum case so it must get quite warm in there. unit was made sometime in 1985Last edited by electro1; 06-13-2012, 03:58 PM.Comment
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Are there good brands for 'run capacitors' or 'start capacitors' that are used on electric motors or heat pump compressors? ... r are the good capacitor brands for electronics (power supplies, laptops, motherboards, etc.) also the good brands for run capacitors?
Yeah I know this might be a novice question, but I just wanted to be sure. I did do a search on the forum but did not see this question asked before.
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Title:
Capacitor detached from PCB – RTX 2070 Super Founders Edition
Description:
During maintenance on an RTX 2070 SUPER Founders Edition, I found a capacitor lying on my desk after reassembly.
I did not notice it detaching, so I am unsure of its original location on the PCB.
Procedure performed:
- Removed backplate
- Cleaned heatsink and PCB with isopropyl alcohol + soft ESD brush
- Reapplied thermal compound
- Reassembled card
Observed behavior after reassembly:
- GPU powers on and operates normally under... -
It has been a long while since I posted here to ask anything....hope you can help.
I have this Samsung power supply that uses SPC1012T as driver for the PFC and it's giving me a problem that I can't narrow down though I've troubleshooted and fixed hundreds of boards similar circuits.
I am attaching a schematic from a different Samsung board, but the topography is very very similar if not 100% the same and it uses SPC1012T, which BTW is a pinout match to UCC28063 for which there's plenty of information. I haven't confirmed they are functional equivalents, but I strongly... -
Hi people, I hope this is the correct spot to post this, I'm new to the forum.
I have an RTX 3080 Founders Edition which has a burnt up capacitor (it was in parallel with another capacitor which appears damaged too), so I am hoping to be able to identify the capacitor values and order replacements.
I hope these photos make it clear which component I am referring to:
(yes, the soldering is a bit botched from removing the blown one, I know)
I have found the board schematic (attached), but there does not seem to be a boardview available. I have never... -
Hi
Measuring a 400v 330uf capacitor across the bridge rectifier and in circuit with a multimeter on ohms. Measures 360 ohms both ways when polarity on the meter is changed. If this is normal, I'd like a brief lesson
Thanks
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