Acer 1916W w/ DAC-12M030 Power Board: Bad Capacitor Replacement

[Jonny Accelerant]

Office client's Acer 1916W has been sitting upstairs in a closet dead for about a year. Just did my first bad cap replacement project and now I'm going for #2.

Opened the Acer 1916W and the (2) CapXon 100uf25V capacitors are obviously bad & bulging, and I intend to replace all of the "cannister" style caps ordering them "custom", one at a time, vs. buying a pre-made kit from eBay like I did the 1st time. Except the large, 400V 120uF which I've read do not go bad as often.

So help selecting caps would be appreciated. I see "Panasonic" mentioned as a top-tier cap manufacturer, and I've always had good success with products with the "Panasonic" name on them, so any way we can work in my fanboyism would be appreciated, unless there is good reason to go in another direction.

Here's a pic of the DAC-12M030 Power Board:



I've removed the caps and have them on-hand in a plastic bag if anyone would like any additional information. I read people referencing "ripple" and temperature, etc... and I don't know if that always applies to everything, or only sometimes. But here is the information I took as each cap was desoldered:

C200 (C201) - TAICON 25v220uF 105C
CE101 - TAICON 25V220uF 105C
CE102 - CapXon 100uf25V 105C
CE103 - CapXon 100uF25V 105C
CE104 - TAICON 10V1000uF 105C
CE105 - TAICON 10V2200uF 105C
CE107 - CapXon 50V22uF 105C

Note: All are rated at 105C, and C200 was labeled "C201" on the back-side of the board.

I read some posting rules/suggestions earlier about photo size. This is the default size from my camera and initially it posts large but then it seems the forum software knocks it down. I intend to be a regular here and would like to get up to speed on forum procedures, etc... so please feel free to correct me or suggest ways to improve my posts. Image size in this instance, but any other issues please let me know.

Thanks in advance.

[budm]

Re: Acer 1916W w/ DAC-12M030 Power Board: Bad Capacitor Replacement

I use PANASONIC FM/FC/FR series. Take the measurement of the dia and height to see which one is the closest to what you have and will fit the board.
Once you find what you need, then all you have to do is to type in that Panasonic P/N in the search box on Digikey web page.

For example: 1000uf 25V, I just type in EEUFM1E102 in the search box and this comes up:
http://www.digikey.com/product-detai...2379-ND/613740

FR is a new series with longer operating life time.

[Lumberjack777]

Re: Acer 1916W w/ DAC-12M030 Power Board: Bad Capacitor Replacement

That's a nice easy fix there. Seen a lot of those. You could probably get by with just replacing the 2 black ones. But it never hurts to replace all 6.

Besides the length and diameter budm mentioned; lead spacing is also important. (distance between the 2 leads on bottom)

Don't worry about ripple and all that. But get 105C. Look at the rated hours. And get Panasonic (like budm said) He's the expert genius out here.

If that doesn't fix it; the other common suspects are those 4 black mosfets near the 2 inverter transformers.
We always welcome a future regular - and good luck, and have fun!

[selldoor]

Re: Acer 1916W w/ DAC-12M030 Power Board: Bad Capacitor Replacement

I read some posting rules/suggestions earlier about photo size. This is the default size from my camera and initially it posts large but then it seems the forum software knocks it down. I intend to be a regular here and would like to get up to speed on forum procedures, etc... so please feel free to correct me or suggest ways to improve my posts. Image size in this instance, but any other issues please let me know.

Thanks in advance.

Could have been me mentioned it hehehehe

No need to have it "In Line" the thumbnail at the bottom is enough then we can decide if we need to open it or not. Also whilst it is a very good picture its probably better to sacrifice some detail and make it smaller especially if you are posting a few. For some of us on less whizzy machines or connections it seems to take forever to load.

Also rather than asking us to suggest caps make out your own list of caps then until you get used to it post it on here and ask if it is good before you order

[Jonny Accelerant]

Re: Acer 1916W w/ DAC-12M030 Power Board: Bad Capacitor Replacement

Could have been me mentioned it hehehehe

No need to have it "In Line" the thumbnail at the bottom is enough then we can decide if we need to open it or not.

It probably was you. And I didn't know what "in line" meant. Means posting the image in the body of the post, vs. simply having as "attached". Thanks for that.

[Jonny Accelerant]

Re: Acer 1916W w/ DAC-12M030 Power Board: Bad Capacitor Replacement

Also rather than asking us to suggest caps make out your own list of caps then until you get used to it post it on here and ask if it is good before you order

I've got everything I need except a way to know the physical dimensions of the caps. I haven't got a micrometer, and I assume that's the best way to measure height and width.

[selldoor]

Re: Acer 1916W w/ DAC-12M030 Power Board: Bad Capacitor Replacement

Howa bout a rule? or if you have the datasheet for the old caps it will tell you on there what the size is? Or for a rough idea use a coin? and look up what size it is. I think one is 19mm so half that is almost 10mm which is a common size.

[Jonny Accelerant]

Re: Acer 1916W w/ DAC-12M030 Power Board: Bad Capacitor Replacement

Howa bout a rule? or if you have the datasheet for the old caps it will tell you on there what the size is? Or for a rough idea use a coin? and look up what size it is. I think one is 19mm so half that is almost 10mm which is a common size.

Alright so I assume "good enough" is good enough? I'm going to Home Depot in a couple of hours, maybe I can find a cheap vernier calipers.

[Jonny Accelerant]

Re: Acer 1916W w/ DAC-12M030 Power Board: Bad Capacitor Replacement

I use PANASONIC FM/FC/FR series. Take the measurement of the dia and height to see which one is the closest to what you have and will fit the board.

I've tried to organize this. The 1st numbers are each capacitor (#1, #2, etc...) and the "Cxxx" numbers are the labeled number of the capacitor (Cap #) on the board.

1st line: Cap #, Manufacturer, rated voltage & capacitance, physical dimensions (as I measured them with a clear plastic ruler)
2nd line: Copied from the Panasonic "FR Series" PDF document you attached. Voltage, capacitance, physical dimensions, then a bunch of stuff like "ripple" and the last field is the model number of the specific (replacement) capacitor.

I went with the FR series thinking that longer life is better, although I'm interested in the cost difference. 20% more is no big deal, 2000% more is a big deal, so I'm curious how much more I'm going to pay for the new FR series than the older, other two "F" series Panasonic capacitors.

1. C200 (C201) TAICON 25v220uF 8mm x 12mm
25 220 8 11.5 950 0.056 6000 0.6 3.5 5.0 EEUFR1E221

2. CE101 TAICON 25V220uF 8mm x 12mm
25 220 8 11.5 950 0.056 6000 0.6 3.5 5.0 EEUFR1E221

3. CE102 CaoXon 25V1000uf 10mm x 20mm
25 1000 10 20 2180 0.020 10000 0.6 5.0 5.0 EEUFR1E102

4. CE103 CaoXon 25V1000uF 10mm x 20mm
25 1000 10 20 2180 0.020 10000 0.6 5.0 5.0 EEUFR1E102

5. CE104 TAICON 10V1000uF 10mm x 16mm
10 1000 10 16 1790 0.028 8000 0.6 5.0 5.0 EEUFR1A102

6. CE105 TAICON 10V2200uF 12mm x 20mm
10 2200 10 25 2470 0.018 10000 0.6 5.0 5.0 EEUFR1A222L

7. CE107 CapXon 50V22uF 5mm x 12mm
50 22 5 11 250 0.340 5000 0.5 2.0 5.0 2.5 EEUFR1H220

The only substantive question I have is if the height of the replacement capacitor for #6 (CE105) is okay, since I measured 12mm x 20mm and the replacement is 10mm x 25mm. 12 to 10 (-2mm) on the diameter seems okay, but I wonder if 20 to 25 (+5mm) on the height is okay. It was the only 10V2200uF capacitor offered in the Panasonic FR series.


Also I want to know if there is a standard format for expressing the voltage and capacitance, as well as the physical dimensions. The capacitors are different, sometimes it's volts then microfarad (25V22uF) and sometimes it's the other way around (22uF25V). The Panasonic catalog lists diameter 1st, then height (10mm x 16mm). Is this standard? Thanks in advance.

[Jonny Accelerant]

Re: Acer 1916W w/ DAC-12M030 Power Board: Bad Capacitor Replacement

Two of the caps from the FR series are not available from Digi-Key, nor do they have any US sources for them on eBay, so I assume they are "too new". If it's a choice between the "FM" and "FC" series, which is better?

[budm]

Re: Acer 1916W w/ DAC-12M030 Power Board: Bad Capacitor Replacement

FM, it was an improved version of FC, and now FR is an improved version of FM. I use all 3 series.

[Jonny Accelerant]

Re: Acer 1916W w/ DAC-12M030 Power Board: Bad Capacitor Replacement

So I put on my "Big Boy Pants" and just went ahead and did it.


I have mixed feelings about Digi-Key at this point. Their registration process seems clunky, and their ordering process even worse, but once I put a bit of effort into figuring things out, things went "OK", but not great. Shipping options are oddball too. Feels very "off", but maybe they are built for experienced, regular customers that understand the GUI and not one-off retail customers like myself. And the prices were right, so I shouldn't complain. To their credit, they were immediately available via online chat, twice, and you could tell it was an intelligent person that spoke (wrote) English as a 1st language behind the screen.

Anyways, the order is made and Gee, I wish I knew if I was going to get some kind of tracking number or whatever. It ain't eBay, for sure. I'll report back once the caps arrive and are installed.

[SteveNielsen]

Re: Acer 1916W w/ DAC-12M030 Power Board: Bad Capacitor Replacement

Good web design seems to be a dying art.

[Jonny Accelerant]

Fixed !!

Caps came in today via USPS. Couldn't wait to get them in, so I skipped work and stayed home to solder. Took about the same amount of time as the 1st monitor, but this time I was sloppy and made some mistakes. Learned a good lesson which is that a minor variation in height between the old and replacement caps might not be a big deal, but a few mm's in diameter might cause problems. A couple of the replacement caps were about 2 mm bigger in diameter than the originals, and so they didn't seat all the way down flush against the PC board due to the fact that adjacent components wouldn't let them. Also I need to get some good zoom magnifying goggles. I couldn't hold the magnifying glass, the soldering iron and the solder all at the same time, so I wore two pair of reading glasses at the same time.



So 7 capacitors cost $5.00 from Digikey, plus $5.00 in shipping (which was annoying), but for $10.00 I have successfully repaired my 2nd LCD monitor. This one goes to a client's office, and they have another one there waiting for what will probably be a duplicate repair. Next, however, I think is going to be a big-huge broken TV that I got in trade for some computer repair work, that might be worth some real money if I can fix it.