help with Dell display unit model # 900G

[jose6326]

sorry it is a Gateway not a Dell. i was looking at my display when i wrote "dell"

first i need help removing the cover

i removed the 4 screws that go to the wall mount area of the back cover

i removed the 4 screws at the bottom

then pryed part of the cover off which does separate partially at the bottom and top

i do not want to try anymore force because it feels like it will crack

second problem is that it does not power up when i plug it into the wall
the power button does not illuminate

im guessin a faulty power supply possibly some defective caps but i wont know until i take it apart


thanks

[Rtech]

Re: help with Dell display unit model # 900G

If you have taken all the screws out, then it will come apart,so you will have to bite the bullet and continue to separate it.

[1supertech]

Re: help with Dell display unit model # 900G

sorry it is a Gateway not a Dell. i was looking at my display when i wrote "dell"

first i need help removing the cover

i removed the 4 screws that go to the wall mount area of the back cover

i removed the 4 screws at the bottom

then pryed part of the cover off which does separate partially at the bottom and top

i do not want to try anymore force because it feels like it will crack

second problem is that it does not power up when i plug it into the wall
the power button does not illuminate

im guessin a faulty power supply possibly some defective caps but i wont know until i take it apart


thanks

Check this video out it's not a gateway but mostly all monitor come apart the same way http://www.youtube.com/watch?v=CwKi42J2c8c

[jose6326]

Re: help with Dell display unit model # 900G

Thanks for the help

But I got it apart I broke a few tabs but it should go back together fine

[budm]

Re: help with Dell display unit model # 900G

http://s807.photobucket.com/user/bud...?sort=3&page=1

[jose6326]

Re: help with Dell display unit model # 900G

Just as I suspected
There are about 6 bulging caps on the board
But I will change all of them

Do they sell a kit for this monitor?

I need the following caps

5 pcs of 470uf 25v caps
4pcs of 220uf 25v caps
1pc of 47uf 25v cap

Where is the best place to buy these


Thanks for the help

[jose6326]

Re: help with Dell display unit model # 900G

Bud thanks for the pics but just a few minutes late
But I got it apart

[budm]

Re: help with Dell display unit model # 900G

Digikey, PANASONIC FM/FR/FC series.

[1supertech]

Re: help with Dell display unit model # 900G

Just as I suspected
There are about 6 bulging caps on the board
But I will change all of them

Do they sell a kit for this monitor?

I need the following caps

5 pcs of 470uf 25v caps
4pcs of 220uf 25v caps
1pc of 47uf 25v cap

Where is the best place to buy these


Thanks for the help

Digikey.com get panasonic fm, fr,fc series caps

[1supertech]

Re: help with Dell display unit model # 900G

00ps you beat me to it budm ;-)

[jose6326]

Re: help with Dell display unit model # 900G

i ordered the caps
have to wait till they get here


thanks

[jose6326]

Re: help with Dell display unit model # 900G

Well now I can say I fixed my first computer monitor

I replaced all of the caps but I kind of almost damaged the circuit board

When I replaced one of the caps after the solder cooled down I pressed on top of the cap and some of the green material lifted from the board

Luckily when I connected everything it still worked

I guess time will tell on how long it will last

[lexwalker]

Re: help with Dell display unit model # 900G

Well now I can say I fixed my first computer monitor

I replaced all of the caps but I kind of almost damaged the circuit board

When I replaced one of the caps after the solder cooled down I pressed on top of the cap and some of the green material lifted from the board

Luckily when I connected everything it still worked

I guess time will tell on how long it will last

Bad soldering (uneven clumping on each solder pad) there. The copper trace lifting off the board is probably from overheating (ie. placing the soldering iron too long). Looking at those areas being quite "clean"... Did you use any solder paste or flux?

[budm]

Re: help with Dell display unit model # 900G

You should use at least 40Watts soldering Iron, I use 60 Watts Weller.

[jose6326]

Re: help with Dell display unit model # 900G

No I did not use any flux or paste

[lexwalker]

Re: help with Dell display unit model # 900G

No I did not use any flux or paste

No wonder! Already guessed from the look of the board...

Using solder paste and/or flux can lower the melting times allowing the solder to be sucked/removed quickly as well as giving "smoother" solder joints (as solder will melt quickly and easily in the presence of solder paste and/or solder flux)...