Question about ViewSonic VX924 19" LCD Monitor

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DELL P1130 I posted this a while back and got some good feedback but am stuck again. The G2 voltage is 630V, way higher than the 400V it should be. I have a schematic but can't figure out which resistors would affect (drop) this voltage. Thanks. dewberrp

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  • dewberr Sep 26, 2008

    I replaced the pot, even tried substituting ones with more and less resistance. No avail!. There should be a high voltage resistor or resistors which control the front panel controls for brightness and contrast. I fixed a similar monitor by dropping this resistance from 10Meg Ohm to 6 Meg Ohm. However I can't seem to find the corresponding resistors in this model.


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Hi there,
Please send me the schematic diagram of an HP lcd monitor


Posted on Sep 26, 2008

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Usually the screen control potentiometer cause this type of problem, you can check the screen control is working properly.If not you have to replace the flyback transformer.

Posted on Apr 09, 2008

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When i turn my p1130 on the green light comes on and in about 15 seconds it start flashing orange?? and wont come on , please help .

The high voltage transformer is loading down the monitor, the cost to repair can not be justified, I recommend a replacement.

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Monitor comes on then goes black

I've got a couple of these monitors that have the same problem. All the caps in the P/S except the large inverter filter (110uf/400v) are bulged. I;ve ordered all the caps - INCLUDING the one that doesn't look bad since all have been subjected to the same high heat (or are bad caps in the first place {Non standard?} so am attempting to prevent a recurring problem. Since all of them cost around $6 TOTAL (plus s/h) there's absolutely NO reason not to replace all of them. The ones in my monitors are: 1-22uf/50v, 1-100uf/400v, 1-470uf/10v,2-1000uf/10v and 3- 470uf/25v. I opted for the slightly higher voltages available when I ordered since that also helps and there's plenty of room. the 10v caps will be replaced by 16v ones, the 25v by 35v while the 50v & 400v will be the same voltage. Hope this helps somebody. Good luck and solder quick to keep the heat down.

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Nothing, you can use higher value (20% higher) and higher voltage, but not another ay around. The higher value & voltage will be bigger body. Observe the polarities.

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Shadow Lines Across Screen on Dell P1130 CRT Monitor

What sort of shadow lines? I assume you haven't just noticed the two horizontal lines 1/3rd up the screen from the bottom and 1/3rd down from the top from the internal stabilizing wires that all Trinitron CRTs have?

Jan 29, 2009 | Dell P1130 21" CRT Monitor

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I have a Dell P1130 monitor running on Windows 2000 the adapter is a nVidia GeForce2 GTS / GeForce2 Pro. The past few days the screen is almost unreadable. It has dark lines (shadows). I tried another...

Sounds like an adapter problem.

If you have tired mutiple monitors then the card/adapter is the only problem/cause left.

You need to replace the adapter/card or motherboard (if the video is on-board).

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All CRT type monitors have an FBT that supplies the high voltage to the tube. Additionally, it also supplies the G2 voltage that is responsible for the screen voltage. Often the adjustment for the Screen/G2 requires a bit of tweaking after some time of usage. Incidentally, there is another adjustment in the same area for the Focus control. Of course, adjustment would have to be done on a "live set" and on the high voltage section, extreme caution must be exercised when performing this operation.

In some extreme cases, it could be a cold solder or loose connection in the squarish PCB at the very rear of the tube. Alternately, it is also possible for a capacitor that is nearing end of life (dried up).

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

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SyncMaster 753s G2 voltage.

Dont worry chayan ghosh +500 is the correct voltage

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Apr 01, 2008 | Samsung SyncMaster 753S 17" CRT Monitor

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Too Bright

It could.Check the screen voltage G2,If its high more then 400v this fix could work.

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