Another Westinghouse LCM-22w3

[ST1NG3R]

About 4 months ago my monitor starting making a high pitch noise when turning on and off. At first it was no big deal, but soon the monitor would turn on to a white screen and require turning the monitor on and off multiple times in order for the picture to finally show up.

I checked around and it seems like some others have had similar problems and it was caused by the capacitors being blown. I just opened up the monitor (pain in the ass) and it looks like the tops of the two larger black capacitors have started to push out and have a little bit of brown on top. They still don't look anywhere near as bad as others I've seen in other peoples pictures... so I was wondering if they look like the cause of the problem. I wiped a little of the brown off the top of them, but you can kind of tell how they are different than the others.

It looks like only the two large black capacitors need to be replaced because all the green tops are still flat. Does anything else besides the two black caps look strange and where should I get the replacements?

Thanks

[PlainBill]

Re: Another Westinghouse LCM-22w3

About 4 months ago my monitor starting making a high pitch noise when turning on and off. At first it was no big deal, but soon the monitor would turn on to a white screen and require turning the monitor on and off multiple times in order for the picture to finally show up.

I checked around and it seems like some others have had similar problems and it was caused by the capacitors being blown. I just opened up the monitor (pain in the ass) and it looks like the tops of the two larger black capacitors have started to push out and have a little bit of brown on top. They still don't look anywhere near as bad as others I've seen in other peoples pictures... so I was wondering if they look like the cause of the problem. I wiped a little of the brown off the top of them, but you can kind of tell how they are different than the others.

It looks like only the two large black capacitors need to be replaced because all the green tops are still flat. Does anything else besides the two black caps look strange and where should I get the replacements?

Thanks

Based on the experience of numerous people, don't screw around just replacing 2 caps. You didn't get bit by a couple of bad caps that slipped through the quality control process. It looks like you have a mix of CapXon's and Elite caps, both of which are known bad manufacturers. Replace only the two that have failed and in a few months you will likely be opening the monitor to replace more that have failed. I've circled all the caps that should be replaced.

PlainBill

There are two ways to do this. One way is to follow this process to locate the proper replacements. FWIW, I prefer to use Panasonic FM or FC series caps but other brands are also excellent. I use Digikey because they offer shipping by First Class mail. Mouser is another very good source.

The other way is to post the manufacturer, series, capacity, voltage, height, and diameter of each cap. Someone will respond with the recommended replacements.

[ST1NG3R]

Re: Another Westinghouse LCM-22w3

Based on the experience of numerous people, don't screw around just replacing 2 caps. You didn't get bit by a couple of bad caps that slipped through the quality control process. It looks like you have a mix of CapXon's and Elite caps, both of which are known bad manufacturers. Replace only the two that have failed and in a few months you will likely be opening the monitor to replace more that have failed. I've circled all the caps that should be replaced.

PlainBill

There are two ways to do this. One way is to follow this process to locate the proper replacements. FWIW, I prefer to use Panasonic FM or FC series caps but other brands are also excellent. I use Digikey because they offer shipping by First Class mail. Mouser is another very good source.

The other way is to post the manufacturer, series, capacity, voltage, height, and diameter of each cap. Someone will respond with the recommended replacements.

Sorry but how do I get the series, capacity, voltage, height and diameter? It looks like the black ones are CapXon and the green ones are TAICON.

[endevite]

Re: Another Westinghouse LCM-22w3

What your looking for on the caps on that board, is around where they have the temp rating, look for 2 letter marks like GF or PW sometimes it's like PW(P) or SM C105 and so on. (c105 is temp rating, ignore things like 06/05 that's just date code)

So find the series code, look at the voltage and uf the caps rated at and then this step is next. From that you look up the voltage on the cap, the uf and check out the stats on the original with that brands series in a datasheet. Then you can more easily figure out what would work as a replacement. (You can usually google like Teapo SM and find a datasheet). If you have problems finding specs on a cap, just ask here, most here have the datasheets for just about every make and series.

If you post those numbers I'm sure someone here could give advice and explain what and why, as far as what would work and why it would work.

[PlainBill]

Re: Another Westinghouse LCM-22w3

Sorry but how do I get the series, capacity, voltage, height and diameter? It looks like the black ones are CapXon and the green ones are TAICON.

Sorry, my bad. Endevite describes it well. Also refer to this thread.

One point I like to make. When you are building 10,000 monitors, saving a dime a cap makes a significant difference in the bottom line. When you are recapping one monitor spending an extra dime a cap to get better than original really doesn't make a lot of difference. For example, I usually go with Panasonic FM series because they are significantly better than the original caps. And are often slightly cheaper than other 'good' brands.

PlainBill

[ST1NG3R]

Re: Another Westinghouse LCM-22w3

There's some type of white glue connecting the capacitors to the board. How should I go about removing? Also, do I need a antistatic wrist strap when doing the replacements?

[PincushionMan]

Re: Another Westinghouse LCM-22w3

There's some type of white glue connecting the capacitors to the board. How should I go about removing? Also, do I need a antistatic wrist strap when doing the replacements?

I repaired a monitor similar to this one last month. I haven't needed to use an antistatic strap, but I do keep my hand off conductive materials as much as possible. As for the glue, I carefully scraped it off with a screwdriver before trying to replace them.

As for PlainBill's advice - yes, replace all the caps on there that you can, I've seen 5 bad monitors, and 4 of the 5 were completely fixed simply by replacing all the CapXon and/or Elite caps on the Power/Inverter boards. I think the 5th one has a bad MOSFET or CCFL, but I'm not quite ready to troubleshoot that one yet.

[ST1NG3R]

Re: Another Westinghouse LCM-22w3

Ok, I removed all the caps and have labeled the screenshot attached and also listed them below. I'm very new at this and didn't have a proper setup, so I kind of scratched the board a little while removing the solder... Nothing serious, but minor scratches here and there around the areas of solder. Could the board have been ruined?

Here is a list of the 8 caps I removed to have replaced:

TAICON
25v220uF
0603(M)
105ºC(PW)P

TAICON
25v1000uF
0623(M)
105ºC(PW)P

TAICON
25v220uF
0603(M)
105ºC(PW)P

TAICON
10v1000uF
0629(M)
105ºC(PW)P

TAICON
25v330uF
0629(M)
105ºC(HD)P

TAICON
25v220uF
0603(M)
105ºC(PW)P

CapXon
1000uF 25v
KF 105ºC
P628
VENT

CapXon
2200uF 10v
KF 105ºC
P626
VENT

[PlainBill]

Re: Another Westinghouse LCM-22w3

Ok, I removed all the caps and have labeled the screenshot attached and also listed them below. I'm very new at this and didn't have a proper setup, so I kind of scratched the board a little while removing the solder... Nothing serious, but minor scratches here and there around the areas of solder. Could the board have been ruined?

Here is a list of the 8 caps I removed to have replaced:

TAICON
25v220uF
0603(M)
105ºC(PW)P

TAICON
25v1000uF
0623(M)
105ºC(PW)P

TAICON
25v220uF
0603(M)
105ºC(PW)P

TAICON
10v1000uF
0629(M)
105ºC(PW)P

TAICON
25v330uF
0629(M)
105ºC(HD)P

TAICON
25v220uF
0603(M)
105ºC(PW)P

CapXon
1000uF 25v
KF 105ºC
P628
VENT

CapXon
2200uF 10v
KF 105ºC
P626
VENT

Rationalizing the list slightly, I come up with this:

3 ea 220uF 25v P12383-ND EEU-FM1E221 @$.32 ea

2 ea 1000uF 25v FC Series P10278-ND EEU-FC1E102 or P11223-ND EEU-FC1E102L or P10279-ND EEU-FC1E102S @ $1.00 - $1.20

1000uF 10v P12353-ND EEU-FM1A102 or P12354-ND EEU-FM1A102L @$.50

330uF 25v FM Series P12386-ND EEU-FM1E331 or P12387-ND EEU-FM1E331L @ $.37

2200uF 10v P10230-ND EEUFC1A222 @ $.90

All part numbers are Panasonic; all stock numbers are Digikey stock numbers. When ordering from Digikey, specify the First Class Mail delivery option. It is cheaper and faster than Priority Mail for small packages.


There are a couple of problems with this list. First, you did not specify the dimensions of the originals. It is now YOUR responsibility to make sure these will fit. I have indicated alternate sizes when available in Panasonic.

Second, I take the attitude that when replacing junk with first rate it isn't important to match the specs of the original exactly. Anyone who wants to compare the specs of the originals and propose better matches is welcome to do it.

PlainBill

[ST1NG3R]

Re: Another Westinghouse LCM-22w3

Hey I did the measurements and checked out all the recommendations and came up with this. Let me know if these look okay, bout to place the order.

3 ea 220uF 25v P12383-ND EEU-FM1E221
originals - .3125" Dia x .4375" H
replacements - .315" Dia x .453" H

2 ea 1000uF 25v FC Series P10278-ND EEU-FC1E102
originals - .375" Dia x .8125" H
replacement - .492" Dia x .787" H

1000uF 10v P12353-ND EEU-FM1A102
original - .313" Dia x .625" H
replacement - .394" Dia x .630 H

330uF 25v FM Series P12387-ND EEU-FM1E331L
original - .3125" Dia x .5625" H
replacement - .315" Dia x .591" H

2200uF 10v P10230-ND EEUFC1A222 @ $.90
original - .5" Dia x .75" H
replacement - .492" Dia x .787" H

[PlainBill]

Re: Another Westinghouse LCM-22w3

Hey I did the measurements and checked out all the recommendations and came up with this. Let me know if these look okay, bout to place the order.

3 ea 220uF 25v P12383-ND EEU-FM1E221
originals - .3125" Dia x .4375" H
replacements - .315" Dia x .453" H

2 ea 1000uF 25v FC Series P10278-ND EEU-FC1E102
originals - .375" Dia x .8125" H
replacement - .492" Dia x .787" H

1000uF 10v P12353-ND EEU-FM1A102
original - .313" Dia x .625" H
replacement - .394" Dia x .630 H

330uF 25v FM Series P12387-ND EEU-FM1E331L
original - .3125" Dia x .5625" H
replacement - .315" Dia x .591" H

2200uF 10v P10230-ND EEUFC1A222 @ $.90
original - .5" Dia x .75" H
replacement - .492" Dia x .787" H

Both sets of 1000uF caps are about 1/3 larger in diameter than the originals. As long as there is sufficient room for the larger diameter caps you are good to go.

PlainBill

[ST1NG3R]

Re: Another Westinghouse LCM-22w3

Great news! I finished replacing all the caps and the monitor is now back to working like the day I bought it. It turns on and no longer makes noises or switches to a blank white screen.

Thanks again guys, especially PlainBill, I really appreciate all the help you gave and finding replacement parts for me, you made this experience very easy and stress free.

[steve]

Re: Another Westinghouse LCM-22w3

I have two of these. Was it obvious as to how to open the case up to get at the board?

[noregret4life]

Re: Another Westinghouse LCM-22w3

I'm not sure if i have the same problem with my unit, but would appreciate any feedback.

I can turn on the monitor for about 30sec. powers up fine, no white screen no issues. After 30 sec it powers off completely and can not be powered back on for at least a minute or 2. After that the cycles get shorter... power on less and less time, and the reset time in between is the same.

Is this also due to bad capacitors? if i replace the above, should it fix this issue even though its slightly different from everyone elses?

[EGuevarae]

Re: Another Westinghouse LCM-22w3

I'm not sure if i have the same problem with my unit, but would appreciate any feedback.

I can turn on the monitor for about 30sec. powers up fine, no white screen no issues. After 30 sec it powers off completely and can not be powered back on for at least a minute or 2. After that the cycles get shorter... power on less and less time, and the reset time in between is the same.

Is this also due to bad capacitors? if i replace the above, should it fix this issue even though its slightly different from everyone elses?

It can be. The cycle gets shorter maybe because the temp goes up. Open the unit, post pics & info as requested.

[sli1que]

Re: Another Westinghouse LCM-22w3

I have an HP 17v flatpanel monitor. I bought a monitor from an auction and at first nothing, so I let it stay plugged in and it finally I started getting a blinking blue power light. Thats it.
I looked up that symptom and determined it was bad caps. I opened up the case and saw right away 2 caps that needed replacing. Please review the included picture. I can see they are 10v Electrolytic 1000MFD caps with the words KF105c and P628 Vent on the side. Please help. If you need a better picture let me know and I can post.

Thanks in Advance

[retiredcaps]

Re: Another Westinghouse LCM-22w3

I have an HP 17v flatpanel monitor.

Please start a new thread or asked this to be moved to a new thread. It is hard to keep everything coherent when there are different monitors under the wrong subject title.

[EGuevarae]

Re: Another Westinghouse LCM-22w3

Please start a new thread or asked this to be moved to a new thread. It is hard to keep everything coherent when there are different monitors under the wrong subject title.

I agree. This will get confusing if you continue over on this thread

[sli1que]

Re: Another Westinghouse LCM-22w3

oh sorry, I will repost under a new thread. Thanks sorry again....

[Vern95673]

Re: Another Westinghouse LCM-22w3

Hello and thanks to all who help people.
I was wondering if anyone knew if the Manufacturer was aware of this issue and if they were doing anything about it. I would think that they would at least pay for the new parts.