VX922 PSU caps going

[protocol.]

I have 4 caps that are going. Monitor gave me the green blinking light of death.

they are CapXon caps
2 of them are 470MF 25V caps
2 are 1000 MF 10V caps

They are all the same size (look to be about 10MM)

I am looking for a place to pick up some of the same 'kind' of caps but have no idea where to look. I can order on-line but im located in calgary,ab,canada if anybody knows of a place to pick up these caps from

i can post pics if necessary though

[PlainBill]

Re: VX922 PSU caps going

I have 4 caps that are going. Monitor gave me the green blinking light of death.

they are CapXon caps
2 of them are 470MF 25V caps
2 are 1000 MF 10V caps

They are all the same size (look to be about 10MM)

I am looking for a place to pick up some of the same 'kind' of caps but have no idea where to look. I can order on-line but im located in calgary,ab,canada if anybody knows of a place to pick up these caps from

i can post pics if necessary though

Pictures would be nice, but perhaps you should do a little homework first and identify replacements, then ask for verification. When you post, indicate the capacitance, voltage, diameter, (I know you already did ) height, and series of the original caps. In general I prefer to replace ALL caps (except the big 400 volt one). Opening up a monitor in two months because ANOTHER cap has failed is a bummer.

This thread has a list of recommended brands. You might notice CapXon is not on that list.

DigiKey Canada has capacitors from several of those brands in stock. I've had very good experience with their US office, but can't vouch for their Canadian operation. Remember that you want to match capacitance, voltage, diameter, height, temperature AND ESR rating. (Personally, I would replace everything with Panasonic FC series, but I've been wrong before).

PlainBill

[protocol.]

Re: VX922 PSU caps going

sorry
They seem to be 10mm x 15mm
markings are KF 105 C (all)
2 of them are 470MF 25V caps
2 are 1000 MF 10V caps
and CapXon

I'm unsure of exactly what i'm looking for. I'm kind of the average tinkerer. built computers but never really messed around with the circuits.

[PlainBill]

Re: VX922 PSU caps going

sorry
They seem to be 10mm x 15mm
markings are KF 105 C (all)
2 of them are 470MF 25V caps
2 are 1000 MF 10V caps
and CapXon

I'm unsure of exactly what i'm looking for. I'm kind of the average tinkerer. built computers but never really messed around with the circuits.

I've mentioned the critical factors. These break down into two groups - performance and size. It does no good to buy new caps that won't fit in the available space because the diameter is too large, or that won't allow you to reassemble the monitor.

Some of the performance specs are easy. The capacitance, voltage, and temperature ratings are all on the cap itself. The ESR can be found in the specs for the series. From the pictures, these are Capxon KF series. The data sheet can be found here. Note that 1000MF10V have an impedance (ESR) of .076, while the 470Mf 25V also have an impedance of .076.

Looking at the Panasonic FC datasheet found here we find that their 1000Mf 10V cap is available in 8mm diam, 20 mm tall, and 10 mm diam, 16 mm high. Better use the latter, which has a part number of EEU-FC1A102 . Note that it's impedance is .068, slightly better than the CapXon. The same situation applies to the 470MF, 25V. That Panasonic part number is EEU-FC1E471 .

NOW looking up those numbers at the DigiKey website shows that they are part number P10225-ND at $.80 each and P10275-ND at $.77 each. I'm not sure what shipping will cost; in the US shipping would be about $2.00 I would guess you are looking at a total expenditure of under $6.00 for the 4 caps and shipping.

The last thing I would point out is there a fifth cap in the pictures. Even though it may not have a bulged top, it is the same quality as those which have failed. Replace it! You would feel foolish in six months if you spent $.65 for that cap, and then another $2.50 for shipping.

PlainBill

[EGuevarae]

Re: VX922 PSU caps going

Pictures would be nice, but perhaps you should do a little homework first and identify replacements, then ask for verification. When you post, indicate the capacitance, voltage, diameter, (I know you already did ) height, and series of the original caps. In general I prefer to replace ALL caps (except the big 400 volt one). Opening up a monitor in two months because ANOTHER cap has failed is a bummer.

This thread has a list of recommended brands. You might notice CapXon is not on that list.

DigiKey Canada has capacitors from several of those brands in stock. I've had very good experience with their US office, but can't vouch for their Canadian operation. Remember that you want to match capacitance, voltage, diameter, height, temperature AND ESR rating. (Personally, I would replace everything with Panasonic FC series, but I've been wrong before).

PlainBill

I second PlainBill : replace all with Pana FC. Don't go with CapXons again.

[protocol.]

Re: VX922 PSU caps going

10V 470Mf about 12mm high and 8mm wide would be that other cap. then theres another 25V 1000mF cap in the middle of the board.
so EEUFC1A471 would be the part number correct?

Thanks for all the help as well. wouldn't be able to do it without having stumbled onto this message board.

Edit: I was pretty sure I wasn't going with CapXon's again, but wasn't sure of exactly where to find the decent ones.

[Toasty]

Re: VX922 PSU caps going

Just for future reference mF = millifarad, uF = microfarad
1mF = 1,000uF

CapXon KF                :: Panasonic FC     :: Panasonic FM
               mA  ESR :: mA  ESR       :: mA  ESR    
1 - 470uF 10v - 8 x 11.5 - 580 .25 :: 555 .117 EEUFC1A471 :: 950 .056 EEUFM1A471
2 - 1000uF 10v - 10 x 16  - 1040 .076 :: 1050 .068 EEUFC1A102 :: 1790 .026 EEUFM1A102
                    ::            ::      
2 - 470uF 25v - 10 x 16  - 1200 .076 :: 1050 .068 EEUFC1E471 :: 1790 .026 EEUFM1E471
1 - 1000uF 25v - 13 x 20  - 1650 .045 :: 1655 .038 EEUFC1E102 :: 2600 .018 EEUFM1E102

At present pricing from DigiKey, the FM's are cheaper by $0.51. Their specs are head and shoulders over the FC's.

The FC's are a good match spec-wise as the CapXon's you are replacing. The FM's will provide better performance. The question to be answered is, will it be noticeable in the monitor?

Toast

[PlainBill]

Re: VX922 PSU caps going

Just for future reference mF = millifarad, uF = microfarad
1mF = 1,000uF

<SNIP>
Toast

Actually, uF is the sound made when power is applied to a reversed electrolytic, or when a smart ass gets an elbow in the ribs.

The PROPER way to designate a .000470 farad capacitor is uF; just ask anyone who owns a tube tester. However, high ascii tends to confuse the search engines used by electronics distributors. Both Mouser and Digikey recognize MF, Mf, mf, and mF. UF and uF tend to get very few hits, especially on Mouser.

PlainBill

[protocol.]

Re: VX922 PSU caps going

Doesn't matter if i'll notice it. Monitor PSU is going anyways so I might as well recap the thing anyways.

Anybody have a few good tips on doing the actual recap? things i should watch out for?

[PlainBill]

Re: VX922 PSU caps going

Doesn't matter if i'll notice it. Monitor PSU is going anyways so I might as well recap the thing anyways.

Anybody have a few good tips on doing the actual recap? things i should watch out for?

# 1: ALWAYS double check the polarity of the caps before soldering them.
# 2: Make a chart showing which cap goes where.
# 3: Make sure you have thoroughly heated up the old solder joint before trying to pull out the old cap.

PlainBill

[Toasty]

Re: VX922 PSU caps going

OOF! is the correct sound.

Caps are marked uF (uF). Where did the MF come from???????

>>Both Mouser and Digikey recognize MF, Mf, mf, and mF. UF and uF tend to get very few hits, especially on Mouser.<<
Yeah, that's nice. Except, when I see mF or nF I start looking for European products and conversions as they typically use those designations. A 470,000 uF cap just didn't seem right in that monitor. :P

I really don't care what a business uses to make its search engine happy. What I do care about is proper industry designations and technically correct information.

>>Anybody have a few good tips on doing the actual recap? things i should watch out for?<<

See: https://www.badcaps.net/ -->> Down the left side, the Recapping Tutorials.

Toast