Question about Gateway FPD2185W 21 in. LCD Television
I've got a Gateway FPD2185W now for about 2yrs. A few weeks ago the screen started to occasionally start to flicker then go black. Hit the power button and everything came back fine. This went on for about a week getting more frequent till it no longer came back on. So now when I turn the power on I get the Gateway splash screen for 1 sec and then it goes black. Blue power light still stays on. If I soft cycle the power it just does the same thing again. I also noticed that if I have no video cable attached the power light goes to amber after about 10sec as would be normal if no input found. But then if I hit the Input button on the side, the screen comes on to show the different input menu, but again it goes black after 1 sec.
After reading through all the different posts here I discovered the cap issue and replaced all 8 caps with 105*C 470uF 50V. No change. BTW the caps I pulled off had no visible signs of defect. So it was a do no harm. Any suggestions? Almost sounds like something is bad in the high voltage section or one of the regulators preventing the florescent backlight from firing up. Thanks for any help....
Assuming you changed all the caps and did it correctly.
IF you get flickering, It could be a transistor on the inverter board.
OR !!! and probably more likely,
It could be one of the bulbs in the lcd itself is failing. It only takes one bad bulb to stop an inverter from firing up !! You can check them one at a time if you have another working monitor.
If you do unplug a good bulb from the good monitor and try each of the questionable ones, one at a time.
Doesn't have to be a gateway monitor to test it, just needs the same backlight plug.
Posted on Oct 06, 2008
First change all 8 capacitors you can go with 560uf 25volt also
then if your monitor stays on 1 second and turn black
open again and check if their is no short circuit on triacks and diodes if not then
solder all points around the capacitor area including the triacks transistors diodes as much as possible
if you do it will work just fine
I just repaired exact same monitor just 5 minutes ago
Posted on Oct 06, 2008
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