Question about Gateway FPD2275W LCD Monitor

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Bad capacitors on main board

We are obviously on the same wavelenght. I did exactly that, replace 3 capacitors. However, I now suspect that it is the Inverter Slave Unit. This powers up the backlight, enabling light to the panel. Otherwise, I will simply replace the power supply unit. THANX 4 your advice.

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Yep, i also realized that it was lead free solder as well (big difference than regular solder.) im going after the inverter 1st hope it solves my problem thanx 4 everything.

Posted on Jul 26, 2008

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That is great news I really like to hear when people work on their own repairs, did you make sure the capacitors were soldered in correctly? there is a negative and a positive side if one is reversed they will not function, I have had experience when the caps are not the culprit the transformer legs usually have a bad output, and given a good transformer high output then the Chip is bad. I have found replacement main boards on Ebay there are several shops selling good guaranteed parts, I repaired my own Emerson's with a replacement board from a provider on Ebay, for 50 dollars. you should be able to check output on a power supply unit when plugged in.

Posted on Jul 23, 2008

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1 Answer

The screen goes black a few seconds after boot up. WHY?

Probably a defective component on the main power board. Check first for bad capacitors first,. A bad capacitor will be bulged out at the top and probably have oily like substance around it. Replace with exact Micro Farad value but up the working voltage from 10 to 50 WVDC depending on what the working voltage of the old one was. If it's not on the main power board then the search can get complicated. When the set is powered on it runs a self diagnostic test of all circuits. Something is telling it's not safe to power up, that's why is shuts down in a few seconds!

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Which power supply caps to replace?

redhorizon77, Electrolytic filter capacitors are relatively cheap. I would at least replace ALL filter caps that have the same capacitor manufacturer name that is printed on the heat-shrink "tube" label. Look for names like: "CAPXON" SAMXON" "JUN FU" "ELITE" Then tell us what you find installed on your SMPS board. Please pay attention to polarity when replacing them. The wire lead closest to the white stripe on label is the negative lead. Make sure to mark the board with fine point marker where the negative lead goes!! And take close-up photos (2 to 3 inches) of board and capacitors BEFORE removing them. Solder some half-inch leads onto the bad and suspected bad caps and ask the local tv/monitor tech to measure the capacitance value (UF) microfarad and report back the data here on fixya. Also tell us brand of filter caps you installed. 12fixlouie

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Blown fuse on a ilpi-009 power supply

hi, i don't know the exact power board you speak of, most fuses for power supply protect ac inboard power, and backlights. if backlight inverters touch ground or ground out, this will blow fuse. otherwise, the fused circuit is used for main inboard power going to primary capacitor. take an automotive fuse holder and solder test leads long enough to work with, install 4 amp blade fuse and jumper/solder the circuit to the fuse on the board and power on the monitor. if all goes well, probably just power surge or outlet grounded. if blows fuse, check to board for obvious burns or blown capacitors. if not there, unplug backlights and power on, if still blows, check to make sure no direct conact with board and back of screen. just be thorough about looking carefully for shorts if there is one. and don't forget to replace the factory fuse on the board with the correct one after you finish repairing, don't leave that automotive fuse in. good luck.

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I have a viewsonic VX2835wm and when i turn it on the screen turns on for a second and then goes black. How do i re-set the monitor?

In this model the capactors hardly ever dome or vent. Usually you will see the top of the labeling on the capacitor has shrunk a little from it's normal size. If the monitor still has any kind of power (which it does from your comment) you or someone you know can replace those capacitors on the output side of the supply. If you're lucky this will solve your problem. If not, you can always try replacing the four brown electrolytic capacitors on the inverter board (the long board on the left when viewing the monitor from the back). There is a chance this could be caused by the inverter board or even a bad backlight, however I would bet it's the power board. If you don't want to replace the capacitors or replacing them didn't solve the problem, contact Viewsonic at and get the price of a new power board. They are pretty easy to replace.

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2 Answers

Hi there My monitor is showing dark colours as bright green. I have tried an old monitor and it is fine? Thanks

On the monitor that is showing dark colors as bright green, its probably going to be the screen that is bad but there is one way to verify it.

Take the back off of the lcd. After you get the back off you will see two boards, a power board and a main board.

Look at the capacitors on both of those boards. They are the ones with the silver top on them. Good capacitors have flat silver tops on them. Bad capacitors have puffy silver tops to them and might leak on the bottom as well.

If you find any bad caps then make sure they are replaced with capacitors of the same UF rating and the same or higher volts.

Plus the striped side of the capacitor has to go into the board with the striped side as well. They have to match up, thats very important.

If you don't find puffy caps to replace then the screen is bad for sure.

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1 Answer

Hp vs19

If it displays the 'no input' type message on the display, it's likely a cable or perhaps the main board in the monitor has gone out. However, if the display is completely black, no backlight, etc. or if the backlight flashes once then stays off, and possibly emits a high pitched squeeling sound, it is very likely that the capacitors on the power supply board for the inverter(s) have gone bad. Apparently there are a few different versions of this same monitor, but all seem similar, and many seem to have problems with the capacitors going bad over time. There is information floating around on this monitor on the internet ( which may or may not be the same as yours, but pulling it apart to replace the capacitors is a $5-10 and 1-2 hour shot in the dark, and seems to be within the capabilities of anyone with the ability to solder. Just be careful of the small surface mount components which are all over the back sides of these boards... The bad capacitors should be fairly obvious, with bulged or ruptured tops, possibly leaking fluid. The are most likely going to be the 1000uF 10V (or 25V depending on the model) capacitors towards one edge of the board. On mine, there were 6, 3 of which had swollen. Replace them with the same (higher voltage rating is fine, but not lower) specification parts, and it should be back in order.

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1 Answer

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