Gateway 19" FPD1975W help needed

[Catevari]

Re: Gateway 19" FPD1975W help needed

I will be hopefully ordering the caps from Digikey at some point today, once I get them in and replace them I will let you know if I have success.

Thank you all for the help, I greatly appreciate it.

[contenido20]

Re: Gateway 19" FPD1975W help needed

i had a problem with my monitor it didn´t turn on then i read about replacing the capacitor i changed three 220 25v but still not working .. what can i do now...

[contenido20]

Re: Gateway 19" FPD1975W help needed

sorry it was the same exact model.. gateway 19 fpd1975w... t

[PlainBill]

Re: Gateway 19" FPD1975W help needed

i had a problem with my monitor it didn´t turn on then i read about replacing the capacitor i changed three 220 25v but still not working .. what can i do now...

Change the rest of the caps or attach (using Manage Attachments - below the text entry area) pictures of the power supply in your computer so we can suggest tests to identify the problem.

PlainBill

[contenido20]

Re: Gateway 19" FPD1975W help needed

Change the rest of the caps or attach (using Manage Attachments - below the text entry area) pictures of the power supply in your computer so we can suggest tests to identify the problem.

PlainBill

thanks... i will post pictures in a couple of minutes... but if the rest of the caps seem to be ok are those could still be the ones causing problems?

[PlainBill]

Re: Gateway 19" FPD1975W help needed

thanks... i will post pictures in a couple of minutes... but if the rest of the caps seem to be ok are those could still be the ones causing problems?

Every SMPS uses a 'startup cap', typically a 10 - 100uF, 50 volt cap. If this cap is open, the power supply will not work. It can also result in strange behavior if it's capacitance is low. Not only have some Chinese manufacturers learned how to make caps that fail without visible signs, this cap is small enough that it would never show any signs of failure. As a matter of routine, I replace that cap every time I encounter a 'won't start' problem, especially if other bad caps have been found.

PlainBill

[contenido20]

Re: Gateway 19" FPD1975W help needed

hi

these are the pics from the power board.. i´ve already changed the blue capacitor that you see in the pics... you guys told me to change all the caps i´m about to do that but i wanted you to see a couple of pics before i do that...

[retiredcaps]

Re: Gateway 19" FPD1975W help needed

i´ve already changed the blue capacitor that you see in the pics..

Geez, those blue Robicon caps (obviously trying to sound like Rubycon) are terrible caps. They are rated at 85C. C11 and C12 are probably dry since you can see the PCB is hot in that area.

[contenido20]

Re: Gateway 19" FPD1975W help needed

Geez, those blue Robicon caps (obviously trying to sound like Rubycon) are terrible caps. They are rated at 85C. C11 and C12 are probably dry since you can see the PCB is hot in that area.

so what should i do .... i just ask for 220 25v caps and they gave me those i didn´t know that they would that terrible...
i mean do i change every cap??

[retiredcaps]

Re: Gateway 19" FPD1975W help needed

so what should i do .... i just ask for 220 25v caps and they gave me those i didn´t know that they would that terrible...
i mean do i change every cap??

Fill in your location so we know which suppliers to recommend.

Those Robicon caps will not last long in an smps environment.

[contenido20]

Re: Gateway 19" FPD1975W help needed

ok thanks... but i believe that's gonna be a problem 'cause i live in Monterrey, Mexico... maybe if you could give a list of a few brands that i could i use...
You said that those caps wont last long.. the thing is that it won't even turn on..

[retiredcaps]

Re: Gateway 19" FPD1975W help needed

The startup cap that PlainBill is referring to is C206 on your board.

[retiredcaps]

Re: Gateway 19" FPD1975W help needed

Do you have a multimeter? If yes, are you familiar with how to measure DC voltage? If yes, please list and report the DC voltages for CON203.

[contenido20]

Re: Gateway 19" FPD1975W help needed

ok i will change that one and let you guys know what happened thanks for your help so far...

[contenido20]

Re: Gateway 19" FPD1975W help needed

yeah i know how to measure de DC voltage but i don't have one here right one... i'm gonna try to borrow one tomorrow and then i will post the the voltages... but in the meantime do i change the C206 cap??

[retiredcaps]

Re: Gateway 19" FPD1975W help needed

but in the meantime do i change the C206 cap??

Yes, go ahead. Try to find something like Panasonic FC for a replacement.

PS. A 85C cap won't last very long in your climate. In Canada with fall starting and winter coming, it might last a couple of months longer.

[PlainBill]

Re: Gateway 19" FPD1975W help needed

ok thanks... but i believe that's gonna be a problem 'cause i live in Monterrey, Mexico... maybe if you could give a list of a few brands that i could i use...
You said that those caps wont last long.. the thing is that it won't even turn on..

Read the 'What Capacitors should I Buy?' thread in the FAQ for specific brands and series. My personal preference is Panasonic FM, FR, or FC series, but other good brands have equally good (or better) series.

PlainBill