Dell 3008wfp faulty power supply

[wobbin]

Re: Dell 3008wfp faulty power supply

Remind me not to buy yours then Fuus LOL :-)

[fuus]

Re: Dell 3008wfp faulty power supply

Haha, I do worry about what's wrong with mine...

[fuus]

Re: Dell 3008wfp faulty power supply

family friend fixed the whining, by bending the psu straight again. Replacement of that bent cap didn't stop it. When I get it back from him I'll try it in my monitor. Failing that, I think it's eBay time...

[fuus]

Re: Dell 3008wfp faulty power supply

Ok! Whine is gone! I put it back in the monitor
plugged everything in
Nothing. Not a blink. Ugh

[synatrol]

Re: Dell 3008wfp faulty power supply

If you haven't done so already just double check that all the connectors are plugged in. I had to disassemble twice as I had forgotten to re-connect some connectors. There are quite a few to remember. I hope this is the case for your sake. It's been a marathon so we are all cheering you on to the finish line.

[fuus]

Re: Dell 3008wfp faulty power supply

Unfortunately not. I had a look on the PCB and it looks like my friend has replaced the wrong schtokky

[slabklab]

Re: Dell 3008wfp faulty power supply

G'day all,

I have a 3007 which doesn't power up.

Is there a thread for this model? I haven't been able to find one. There seems to be heaps of info on the 3008 but not much on the earlier model.

I tested the 3 Schottkys I could find in-circuit and they seem to be OK.

I'd be grateful for any assistance.

Cheers

[Lumberjack777]

Re: Dell 3008wfp faulty power supply

G'day all,

I have a 3007 which doesn't power up.

Is there a thread for this model? I haven't been able to find one. There seems to be heaps of info on the 3008 but not much on the earlier model.

I tested the 3 Schottkys I could find in-circuit and they seem to be OK.

I'd be grateful for any assistance.

Cheers

Hello, and welcome to badcaps.

It would definitely be better to start up a new thread on your monitor. That way anybody in the future could find your Dell 3007 in the search, and it would prevent confusion from anybody looking for Dell 3008 info in this thread.

It helps to be specific in the title. Example......

Dell 3007wfp - no power led - does not turn on

Basically....just give a nice short description including the exact model

Cheers

[slabklab]

Re: Dell 3008wfp faulty power supply

Thanks for the advice,

I was a bit surprised that there was so much info on the 3008 and very little on the 3007.

Tried replacing a comparable Schottky on mine and blew the house earth leakage detector.

Sigh - think I'm going to need all the help I can get!

What's the electronics version of girding the loins? Grabbing a hold of your toroids maybe?

Cheers

[math]

Re: Dell 3008wfp faulty power supply

I just bought myself a 3008 for $75

It's in pristine condition except it won't turn on. As i suspect it has the same issue as half of the other people in here are getting... dead D22 Diode.

well... I shall be opening her up shortly to find out.

[Lumberjack777]

Re: Dell 3008wfp faulty power supply

I just bought myself a 3008 for $75

It's in pristine condition except it won't turn on. As i suspect it has the same issue as half of the other people in here are getting... dead D22 Diode.

well... I shall be opening her up shortly to find out.

Wow. Congrats! If it's just that diode, you got the deal of the century

I have repaired about 10 of these and I can tell you that most people have trouble seperating the front bezel from the back casing. Here's a nice tutorial on this repair. http://forums.overclockers.co.uk/sho...php?t=18460501

Though I wouldn't try to use a credit card like he did. They are just too flimsy for the job. Here's the way to properly disassemble....
Set it on it's back, screen side up. Now look for any tiny gap that you can find between the top bezel, and the casing. I usually found a mini-gap near the power button. You want to use 2 butter knives to seperate the bezel from the back. Try to push DOWN between the bezel and the back casing. You may need to pry back and forth with the 2 butter knives before you can finally get one to slide down inside. Now pry outward a little and stick the 2nd butter knife in. Slide along to the left with the knife, and reach down and grab the bezel and pull upward until it snaps apart. Do this all the way around.

I have seen a few guides where the person goes in and pries towards, and on, the lcd screen and tries to pry the bezel off on top of the lcd screen. That is a surefire way to crack the LCD

So you always want to be prying downward and outward and pulling up on the bezel. When you have the bezel seperated you can pop in some pieces of cardboard; turn it over and pull off the back plastic casing. Good luck mate!

[wobbin]

Re: Dell 3008wfp faulty power supply

Look on Ebay for 'Spudgers' - people generally use these things for stripping down IPhones to swap the digitiser when it get broken.

Great for opening monitor cases. I have a couple of the stainless steel spatula shaped types.

Cheers
Robin

[math]

Re: Dell 3008wfp faulty power supply

Thank you for the advice lumberjack.

I've placed the screen in the closet out of sight as i wait patiently for a replacement diode to arrive in the mail. I believe if i only open it once to do the repair when i have the part here and ready to go there will be less chance of breaking it.

the part that i ordered as a replacement to the D22 diode is this
STPS30150CT
cost me $6 to get 2 of them with free shipping to my door. I should get them in 5 days.

datasheet here



not as high voltage as the 170v diode, but to get that one i would have to pay 4 times as much and have to wait as it's on back order

So i figured the original was 120v, a 150v one should suffice.

[math]

Re: Dell 3008wfp faulty power supply

IT WORKS

bloody awesome

too bad my laptop only has VGA and HDMI out ports... seems like i'm stuck @ 1920*1200 though

[Th3_uN1Qu3]

Re: Dell 3008wfp faulty power supply

Uncheck "Hide modes that this monitor cannot display" and you should be able to get more.

[math]

Re: Dell 3008wfp faulty power supply

Uncheck "Hide modes that this monitor cannot display" and you should be able to get more.

i wish that was the case

unlike winxp it won't give me any options to force a res.

i'm using my laptop

ati 6770m chip with output for VGA and HDMI

wish it had dvi or display port

[Th3_uN1Qu3]

Re: Dell 3008wfp faulty power supply

There are HDMI -> DVI converters as far as i know.

[math]

Re: Dell 3008wfp faulty power supply

There are HDMI -> DVI converters as far as i know.

Yes, but they only convert passively " single link" DVI, even though they have dual link connections, the dual link is 'blank' and only single is passed through the cable.

max res is 1920*1200....

Need a new laptop :P

[math]

Re: Dell 3008wfp faulty power supply

I got a new laptop.
It has dual Link DVI output, comfortable running @ 2560*1600 now...

thankyou all for your help

[S. Bouchard]

Re: Dell 3008wfp faulty power supply

Hi!

I have a 3007WFP which does power up (blue led on) when no DVI is connected. Backlight does come on but the Self Test does not show up. If I press the power button, it does turn off. If I connect it to a PC (DVI), the power led turn amber.

From time to time (when it was working), as it would wake up, I would experience a bunch of vertical lines which would be resolved by simply turning it off and back on.

I have not opened up the monitor yet but from reading this thread, I suspect the D22 diode is fine since I am getting power. The controller board seems to be ok since the power button works, usb still works despite no video, it doesn't switch from blue power to amber when a dvi is connected... so could it be some bad capacitors which were starting to fail (vertical lines that I was getting from time to time) which have now failed?

Obviously, I plan on opening the monitor but I am doing some recon first

Thanks in advance for your help.