LCD Monitor Problem
 

I have a Gateway fpd1800 which I think is the same as an LG (CL-119). The problem is that the back light flashes on and then goes off when power is applied. Sometimes it will stay on after awhile. I let tit run for a day with a screen saver and it seemed to work okay until I rebooted the PC. Are there replacement backlight units? I sit possibly a bad starter?

Thanks

Ray

Ray:
I have a Gateway FPD1730 which I think is a LG708G (CL-36) which has
a simular problem. Most of the time, it is completey dead. Every one in
a
while, it will come on when I am working on it. Last night, it came on
and I ran it until bedtime. Turned it off, then on, several times.
Worked good. This morning -- dead again.
There are three circuit boards, besides the panel (made by Hyundai).
The Power supply, controller and front panel switch board.
I believe the problem is in the controller board. Voltages on the
power supply are working correctly. There is just no Enable signal from
the controller to the PS board. I replaced most of the SMD electrolytic
capacitors on the controller (many had high ESR), but still no
improvement on starting up.
I called LG parts and gave them the part numbers on the controller
and the LG model number. They told me that they had no record of
the intems in their computer. When I mentioned that is was a Gateway
(made by them), they told me it was an OEM item and they do not supply
these parts... Go see Gateway.
Gateway told me that they do not sell parts and to send the LCD display
back to them for repair (it is out of warranty). I will not do this.
They are too expensive.
Let me know how you make out with yours...
John


mccrary wrote:
I have a Gateway fpd1800 which I think is the same as an LG (CL-119).

The problem is that the back light flashes on and then goes off when
power is applied. Sometimes it will stay on after awhile. I let tit
run for a day with a screen saver and it seemed to work okay until I
rebooted the PC. Are there replacement backlight units? I sit
possibly a bad starter?

Thanks

Ray


--
mccrary

"mccrary" wrote in message
...

I have a Gateway fpd1800 which I think is the same as an LG (CL-119).
The problem is that the back light flashes on and then goes off when
power is applied. Sometimes it will stay on after awhile. I let tit
run for a day with a screen saver and it seemed to work okay until I
rebooted the PC. Are there replacement backlight units? I sit
possibly a bad starter?

Thanks

Ray


--
mccrary

First try a new CCFL tube, just wire it up to the inverter without
installing it in the display and see if it runs correctly, if it does then
you found the problem. When they age, the voltage required to sustain an arc
increases. It could also be a faulty inverter but the tube is more likely
since it lights at all.