Gateway FPD2485W - capacitor related?

[jetadm123]

Re: Gateway FPD2485W - capacitor related?

Hello
New to forum
My Gateway FDP2485W has developed the problems described on this forum. I have ordered the capacitor kit and unassembled the monitor. Upon viewing the capcitors inside I did not observe any bulging but white stuff (hardened white stuff that appears to have leaked from the capacitors but is also on other components). Has anyone else seen this and would this indicate the same problem except the capacitors have ruptured instead of bulging?

No need to worry. The "white stuff" is an adhesive used by the manufacturer to hold parts in place prior to the soldering process. You can use a razor blade or hobby knife to slice through it when you are in the process of removing the old caps.

[Gkroeger]

Re: Gateway FPD2485W - capacitor related?

Hello
New to forum
My Gateway FDP2485W has developed the problems described on this forum. I have ordered the capacitor kit and unassembled the monitor. Upon viewing the capcitors inside I did not observe any bulging but white stuff (hardened white stuff that appears to have leaked from the capacitors but is also on other components). Has anyone else seen this and would this indicate the same problem except the capacitors have ruptured instead of bulging?

[ryankam]

Re: Gateway FPD2485W - capacitor related?

OK, PlainBill and I were discussing a similar problem with a Gateway monitor on another post recently (Gateway fpd1975w). I came across your thread while searching for an answer. On the second photo (processor board), there is a component that has me concerned. On the photo, it is at the bottom right hand side of the blue oval. It is marked HT RBS31. I tried searching for a data sheet on this object and couldnt find one. My gateway processor board is different than this one however it has this same part. I noticed that this part, for some reason, has something moving around inside of it. My logic suggests that this cannot be a good thing. Anyone else ever see or test this component before? It almost looks like a photo trasistor or some type of isolation component.

This device is what tells your computer which orientation the monitor is in. Vertical or horizontal since it is a wide screen. It sits on a swivel base that allows you to turn the monitor longways and it will change the screen automatically.

[retiredcaps]

Re: Gateway FPD2485W - capacitor related?

I've bought a repair capicitor kit from Hobbymods.. should have just gone to Radio Shack.. too late :p

Never head of Hobbymods, but Radio Shack does not sell low ESR (ohms) capacitors which is what is required on a power board that uses a SMPS.

[mkgirl]

Re: Gateway FPD2485W - capacitor related?

'll retry and retake the pics in a bit.

[alexanna]

Re: Gateway FPD2485W - capacitor related?

The picture manager isn't working.. I've resized my picture like 5 times.. the smallest file size was 87kb so I don't know what els to try besides my flikr link which is posted in my first post... help please.

You might have to reduce the resolution of the pictures the camera is taking. I have a problem with one of my cameras I have to reduce the resolution from 10m down to about 8m for things up load to badcaps, I have had problems even when the photos were resized.

[mkgirl]

Re: Gateway FPD2485W - capacitor related?

The picture manager isn't working.. I've resized my picture like 5 times.. the smallest file size was 87kb so I don't know what els to try besides my flikr link which is posted in my first post... help please.

[retiredcaps]

Re: Gateway FPD2485W - capacitor related?

Here is a pic of my board... any and all help is appreciated

Please use the manage attachments function provided to upload your pictures so they are hosted on this forum. The max resolution is 2000x2000.

[mkgirl]

Re: Gateway FPD2485W - capacitor related?

Brand: nichicon

https://www.hobbymods.com/store/inde...tor-parts.html

Gateway LP2407, LCD Monitor Repair Kit

$11.99
Quick Overview

This kit as the replacement capacitors to fix your broken monitor. If you are the DIY person and have soldering experiance this can save you $40 - $60 to have someone else replace your bad caps.

This kit has all NEW components:
Qty value volts Temp
1) 1000uf 25v 105* high temperature cap
4) 1000uf 10v 105* high temperature caps
1) 680uf 25v 105* high temperature cap
3) 470uf 35v 105* high temperature caps
1) 470uf 25v 105* high temperature cap
1) 47uf 50v 105* high temperature cap
1) 10uf 50v 105* high temperature cap
1) Solder wire Pb60/Pb40 .050" dia
1) Copper desoldering braid (Solder wick)

[De3rcr]

Re: Gateway FPD2485W - capacitor related?

What brand and series caps were in the kit?

[mkgirl]

Re: Gateway FPD2485W - capacitor related?

I've read and read and read and I still need help.

Problem: When I plug in the power cord I hear a buzzing noise from one of the components nearest where the plug is plugged in. I can't detect exactly which component it is. No effects to the picture quality and/or the power in general. I figured I'd take care of it before it gets worse.

I've bought a repair capicitor kit from Hobbymods.. should have just gone to Radio Shack.. too late :p

I've checked all my caps and they look normal, no buldging. So I have no clue where to even begin as I don't want to unsolder the caps since they are still in good shape. I rarely use this monitor and now that I WANT TO USE IT there's problems :p

Here is a pic of my board... any and all help is appreciated


and just in case the pic doesn't show here's the link http://www.flickr.com/photos/spresho/5581166418/

[PlainBill]

Re: Gateway FPD2485W - capacitor related?

Jetadm123, thank you for the quick reply!

Based on your advice, I checked the F1 fuse for continuity, and it appears to be blown. Q1-4 appear to be fine.

Anyone know where a replacment fuse can be found, or can I just wire up a regular fuse with wire leads to make it easier?

DigiKey carries them.

PlainBill

[crashp3]

Re: Gateway FPD2485W - capacitor related?

Looks like 3 caps on the power board are bulged. However, with the exception of the large 450V cap, replace ALL of them with something like the Panasonic FR,FM or FC series of caps. Order through digikey.com and select USPS First Class ship for lowest rate.

Also, replace BOTH caps on the inverter board, since they are starting to leak. Use same series caps as above.

On the inverter board, check fuse, F1 (lower right), for continuity and mosfets, Q1-Q4, for shorts.

Jetadm123, thank you for the quick reply!

Based on your advice, I checked the F1 fuse for continuity, and it appears to be blown. Q1-4 appear to be fine.

Anyone know where a replacment fuse can be found, or can I just wire up a regular fuse with wire leads to make it easier?

[jetadm123]

Re: Gateway FPD2485W - capacitor related?

First off, thank you for such a great resource and, in advance, any help that you gurus and experts will be able to provide!

I recently acquired a Gateway FPD2485W that is having the following problem: Unit powers on, displays blue power light on lower right hand corner, fades to purple and then orange/amber. When powering on, the "chimes" do sound, however nothing appears on the screen - whether that is the Gateway logo or input from any source (component, DVI, VGA). Even with a flashlight on it, the LCD does not display an image.

I pulled the casing apart (pain in the butt) and found a few capacitors that appear to be bad - I am hoping you experts can help identify and confirm, by visual, that these are indeed bad and would be causing the problems I am experiencing. With my limited knowledge, atleast one on the power board and (2) on the inverter board are bad.

Any assistance is greatly appreciated!

Looks like 3 caps on the power board are bulged. However, with the exception of the large 450V cap, replace ALL of them with something like the Panasonic FR,FM or FC series of caps. Order through digikey.com and select USPS First Class ship for lowest rate.

Also, replace BOTH caps on the inverter board, since they are starting to leak. Use same series caps as above.

On the inverter board, check fuse, F1 (lower right), for continuity and mosfets, Q1-Q4, for shorts.

[crashp3]

Re: Gateway FPD2485W - capacitor related?

First off, thank you for such a great resource and, in advance, any help that you gurus and experts will be able to provide!

I recently acquired a Gateway FPD2485W that is having the following problem: Unit powers on, displays blue power light on lower right hand corner, fades to purple and then orange/amber. When powering on, the "chimes" do sound, however nothing appears on the screen - whether that is the Gateway logo or input from any source (component, DVI, VGA). Even with a flashlight on it, the LCD does not display an image.

I pulled the casing apart (pain in the butt) and found a few capacitors that appear to be bad - I am hoping you experts can help identify and confirm, by visual, that these are indeed bad and would be causing the problems I am experiencing. With my limited knowledge, atleast one on the power board and (2) on the inverter board are bad.

Any assistance is greatly appreciated!

[retiredcaps]

Re: Gateway FPD2485W - capacitor related?

Do you know what the heck I'm talking about and any clues on how to fix this?

We always ask for pictures of your boards so we can reference components and see possible problems on your board. So start with that.

See post #90 and post the pictures using manage attachments. Please do not post inline.

[crisisnite]

Re: Gateway FPD2485W - capacitor related?

I have this same Monitor, just got dropped off at my shop... I just fix computers and don't do any soldering... I get a "zilp" kinda zap noise every like 1.5 seconds whenever I attach the power.

Looking at the power close image that is where the noise is coming from. it's in the general area of where the power cable is plugged into. (like just in from it... maybe the box I can't identify because this isn't my feild.)

Do you know what the heck I'm talking about and any clues on how to fix this?

Also the "capacitor" on the bottom left in the power close image, on my board is bulged at the top to the point where it looks as though there is a slightly larger than a pin, hole in the top.

Any help would be greatly appreciated!!

[retiredcaps]

Re: Gateway FPD2485W - capacitor related?

The four on that side are all domed, not seriously but none the less not completely flat like the others.

Domed, no matter how convex, indicated a bad cap -> i.e, definitely needs to be replaced as Wrog suggests with low ESR caps like Panasonic FM or FC series.

[Wrog]

Re: Gateway FPD2485W - capacitor related?

The four on that side are all domed, not seriously but none the less not completely flat like the others.

Guess it wouldn't hurt to replace them all.

Could these be found at Fry's?

The only radial caps I see at Fry's are NTE brand, and I've never heard of them. Safer to go with Panasonic FC or FM from Digikey or Mouser. I would also recommend replacing all of them on the power supply except for the large one on its side. It looks like there are 11 not including the big one. If you want help picking out replacements, list the uF, volts, make/series, diameter and height of each cap you are replacing and someone will make recommendations (the easy way is to just stick with Panasonic FC/FM though).

[djfourmoney]

Re: Gateway FPD2485W - capacitor related?

Better, yes. But the focus should be on the caps and not the wiring. The way to do this (on many digital cameras): push down halfway on the button to focus, then move the camera to frame the rest of the picture. This will allow you to focus on anything and include anything surrounding that may help. That being said, I still can't tell if they are bulging but it does look at least a little like they are. If the tops are not completely flat, then it's time to replace them.

The four on that side are all domed, not seriously but none the less not completely flat like the others.

Guess it wouldn't hurt to replace them all.

Could these be found at Fry's?