i have ordered few nichicon LKS for psu to replace the nippon SMH.what do you think guys? anybody use them?
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Re: Lks
The specs seem near identical (I compared 1500uF and 2200uF 100V parts' specs). Nichicon and Chemicon are both excellent manufacturers.PeteS in CA
Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
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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... -
i have replace nichicon HE series 2200mf 16v with vishay BC 136 SERIES 2200mf.measuring the nichicons sean on meter 2550mf and zero esr.i measure and the new vishays and sean 2080mf and near zero esr that looks normal.the nichicons numbers is normal so far from label data?and what about vishay 136 any infos from other users here? -
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... -
Hi guys.I have two EV dsp processors and before two years i do full recap to both. The units have before recup thousands hours running.On output input coupling caps (16 pieces) i solder nippon lxz series 100mf 63v (this time i don't have other stock) i know is low esr caps.Last week have found and order nichicon fw standard audio series.Is a good reason to replace the nippons lxz with nichicon fw ? The units get better sound? Or get worse?Thanks for any advice.
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I'd like to start out by thanking this forum for providing the info to be able to repair my 15 year old CP1500AVRLCD UPS. Here is all the info I gathered during my trouble-shooting and re-capping.
Like clockwork, I've had to replace the SLA batteries every 4 years. It was about that time and the UPS was acting like it needed new batteries... randomly shutting off with AC present, not being able to charge fully, and poor runtime when AC was removed. So, I replaced the batteries but noticed that it was not charging properly.
I decided to verify that the batteries were...
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