Got a K7N2-L with bulging 1500uf 16V United Chemicons (KZG) Have quite a few of 1500uf 16V Nichicon PL but in the 12.5mm OD size. Decided to use those before buying some 10mm OD size ones, just in case the board had other problems that a cap fix wouldn't cure. Board does POST now, but not sure if Nichicon PL are low esr, as I cannot find any data sheets.
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Re: K7n2-l
i found two nichicon PL(M) on Compaq i440BX mainboard near RAM regulator...
datasheet would be useful for me
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Re: K7n2-l
Take care United Chemicon caps are good caps. If they are bulging it is a strong indication that they have been stressed. This most often means the power supply caps are faulty. Check out the PS.Gigabyte EP45-DS3L Ultra Reliable (Power saver)
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Re: K7n2-l
Yes Nichicon PL are very low esr, and are also very reliable caps. I use Nichi PLs alot when I'm working on power supplies. Unfortunately they're not RoHS compliant so they're no longer being made (the PM series replaces the PLs and is said to offer largely similar specs.)Originally posted by darklockThe ever-amazing (and ever-affordable) KY, Chemi-con's best kept secret.
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Re: K7n2-l
thx a lotComment
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Hello All, I have on the bench a couple of PSU's which have some failed Nichicon PL series caps. They didn't "puke" their guts through the top, but instead "diarrhea'ed" corrosive brown electrolyte through the bottom, down the legs and onto the board. On one cap, the electrolyte rotted the cap right off the board leaving 2 little stubs, and also corroded a trace on the foil side.
The PSU's are Power-One MAP series and are ringing-choke topology. The semiconductors have date codes in 1993. The PSU's were used in a commercial application, fan-cooled. They had failed... -
Hey Everyone,
Long time lurker, but I think this is my first time posting.
Just looking for some assistance on identifying some suitable replacement capacitors for an MSI K7T266 Pro (Ver. 1.0). I just got my hands on two of them actually, both working but one has some visibly bulging capacitors and the other has a few that I can't tell for sure if they're bulging because it's faint at best if they are.
I'll be honest I don't fully understand much on capacitor spec sheets beyond voltage and capacitance but I can solder like nobodies business so I've... -
I recently acquired a set of Bose Roomate speakers from the mid to late 80's. Basically the right speaker cabinet is completely passive, and the left one has the power transformer and amplifier circuit in it. Out of curiosity, I opened it up to see what the circuit looked like. Looks like they used all Nichicon VX (2x 4700uF/16v for smoothing off the bridge rectifier), a couple random Nichicon SE series sprinkled on the board, and what really caught my eye - 2 yellow sleeved Nichicon caps (both 1uF/50v with no real series marking. Below are pictures of the caps. The only thing not shown in these... -
A few days ago,I destroyed one of my japanese retro game console by pluging it to 220v outlet.
https://www.badcaps.net/forum/troubl...e-been-blew-up
and I finally fixed​ this retro game console by soldering varistor and glass fuse.
But I noticed that When I measure voltage of PSU's 5pin connector, it is 8.80-9.07v, 5.13v,3.40-3.48v,GND,GND instead of its rated voltage of 9v 5v 3v GND GND.
I have spare console... -
Fixed a 10yo HP inkjet with a bulging cap on the digital computer power rails (1 to 5V). Unstable voltages causing these inkjets to not boot properly or crash quickly. Seems like more and more of these are showing up nearing the 10 year mark. Board design seem to look similar for many of these printers.
https://h30434.www3.hp.com/t5/Printi...t/true#M99792202-03-2025, 09:50 PM
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