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Doward started a topic Replaced some caps on an MS-7207 / K8MGN2 Board

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

05-15-2013, 02:53 AM
Replaced some caps on an MS-7207 / K8MGN2 Board

Video: [url]http://www.youtube.com/watch?v=Y5XS0olm2ww[/url]

Gateway board, thought this might help someone out. Next up is an AsRock board with some bad capacitors Video: [url]http://www.youtube.com/w... capacitors ;)Video: [url]http://www.youtube.com/watch?v=Y5XS0olm2ww[/url]

Gateway board, thought this might help someone out. Next up is an AsRock board with some bad capacitors

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Doward replied to Antec Cap sizing

in Troubleshooting Power Supplies and Power Supply Design

05-21-2012, 07:56 PM
Re: Antec Cap sizing

I can't tell you how much you guys rock. Much appreciated

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Doward started a topic Antec Cap sizing

in Troubleshooting Power Supplies and Power Supply Design

05-21-2012, 10:13 AM
Antec Cap sizing

I hate to drag this back from 2 years ago, but I'm on the hunt for a 10mm diameter 4700uF capacitor (2 actually for my Antec power supply) and Google popped up this thread LOL

Currently it's a 30mm tall can, but I have about 45mm of space.

Any help is appreciated!!

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Doward replied to Westinghouse LCM22W2 Help (DAC-19M009)

in Troubleshooting TVs and Video Sources

10-05-2010, 07:49 PM
Re: Westinghouse LCM22W2 Help (DAC-19M009)

Replaced all 9 caps - complete success! Now rocking dual 22" screens for my main setup! Need to keep my eyes open for more bad LCDs

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Doward replied to Westinghouse LCM22W2 Help (DAC-19M009)

in Troubleshooting TVs and Video Sources

09-29-2010, 06:40 PM
Re: Westinghouse LCM22W2 Help (DAC-19M009)

For the record, I am JUST NOW getting around to making this repair I'll let you all know how it goes.

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Doward replied to Westinghouse LCM22W2 Help (DAC-19M009)

in Troubleshooting TVs and Video Sources

07-03-2010, 12:20 PM
Re: Westinghouse LCM22W2 Help (DAC-19M009)

How important is the capacitance on the primary filter?

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Doward replied to Westinghouse LCM22W2 Help (DAC-19M009)

in Troubleshooting TVs and Video Sources

07-03-2010, 05:21 AM
Re: Westinghouse LCM22W2 Help (DAC-19M009)

Just verified lead spacing, and all is correct!

I would still like to replace that 400v 120uF cap (the primary filter, I take it?) - any ideas?

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Doward replied to Westinghouse LCM22W2 Help (DAC-19M009)

in Troubleshooting TVs and Video Sources

07-01-2010, 05:12 PM
Re: Westinghouse LCM22W2 Help (DAC-19M009)

Alright, I'll check lead spacing requirements tonight or tomorrow, as well as check out how the bulbs in there look.

I figure that odd fluttering is most likely noise - either via bad cap or bad lamp (or both)

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Doward replied to Westinghouse LCM22W2 Help (DAC-19M009)

in Troubleshooting TVs and Video Sources

07-01-2010, 02:05 PM
Re: Westinghouse LCM22W2 Help (DAC-19M009)

Ok, so provided my lead spacing is correct, here's what I'm looking at ordering:

(1) 400v 120uF - Still searching... - United Chemi-con makes the exact sized one I need, but in 350v!
(3) 25v 220uF - P12383-ND - (Panasonic FM series)
(1) 25v 330uF - P12387-ND - (Panasonic FM series)
(1) 10v 2200uF - P12357-ND - (Panasonic FM series)
(1) 50v 22uF - P12927-ND - (Panasonic FM series)
(2) 25v 1000uF - P12379-ND - (Pansonic FM series)
(1) 10v 1000uF - P12353-ND - (Panasonic FM series)...

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Last edited by Doward; 07-01-2010, 02:08 PM.
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Doward replied to Westinghouse LCM22W2 Help (DAC-19M009)

in Troubleshooting TVs and Video Sources

07-01-2010, 11:12 AM
Re: Westinghouse LCM22W2 Help (DAC-19M009)

What kind of ESR am I looking at needing on these caps? Digikey seems to only list compatible ones as 'General Purpose'

For instance, a 338-1706-ND from CDE has an ESR of 180 mOhm, but is listed as 'General Purpose'

Just want to make certain I order the correct caps!

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Doward replied to Westinghouse LCM22W2 Help (DAC-19M009)

in Troubleshooting TVs and Video Sources

07-01-2010, 09:25 AM
Re: Westinghouse LCM22W2 Help (DAC-19M009)

(1) 400v 120uF - 31.3mm tall x 18.2mm diameter / 0621(M) 105C - (AQ)P
(3) 25v 220uF - 12.6mm tall x 8.25mm diameter / CapXon KF P620 Vent
(1) 25v 330uF - 15mm tall x 8.31mm diameter / 0613(M) 105C - (HD)P
(1) 10v 2200uF - 20.4mm tall x 13.2mm diameter / CapXon KF P608 Vent
(1) 50v 22uF - 11.95mm tall x 5.22mm diameter / GL 105C P616
(2) 25v 1000uF ( one is also on its side) - 20.78mm tall x 10.58mm diameter / CapXon KF P620 Vent
(1) 10v 1000uF - 17.11mm tall x 10.28mm diameter / 0619 (M) - the rest...

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Doward replied to Westinghouse LCM22W2 Help (DAC-19M009)

in Troubleshooting TVs and Video Sources

07-01-2010, 08:10 AM
Re: Westinghouse LCM22W2 Help (DAC-19M009)

Alright, do I need low ESR caps all around on these?

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Doward replied to Westinghouse LCM22W2 Help (DAC-19M009)

in Troubleshooting TVs and Video Sources

06-30-2010, 11:03 PM
Re: Westinghouse LCM22W2 Help (DAC-19M009)

ah, how do I test for ESR?

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Doward replied to Westinghouse LCM22W2 Help (DAC-19M009)

in Troubleshooting TVs and Video Sources

06-30-2010, 06:13 PM
Re: Westinghouse LCM22W2 Help (DAC-19M009)

Note also that if I leave the system powered up while fluttering, it will stay on indefinitely. As soon as I power it off, however, the system shows the current input in the upper right corner, a completely black screen, and powers down within 2 seconds.

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Doward started a topic Westinghouse LCM22W2 Help (DAC-19M009)

in Troubleshooting TVs and Video Sources

06-30-2010, 05:44 PM
Westinghouse LCM22W2 Help (DAC-19M009)

Strange problem I've not come across before:

From completely cold (no power hooked up) I can run DVI or D-sub (using this as a monitor) and it will work great for 3-5 minutes.

Once the monitor 'gets warm' the brightness starts to flutter, as in rapidly dimming and brightening perhaps 30 times per second.

I disassembled the monitor, and inspected the caps. They are the Crapxon capacitors, but none are bulging. I have not read voltage on any of them just yet.

I'm inclined to believe I have a lamp going bad, but I have been unable to locate...

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Replaced some caps on an MS-7207 / K8MGN2 Board

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Antec Cap sizing

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Westinghouse LCM22W2 Help (DAC-19M009)