Question about Dell P1130 21" CRT Monitor

2 Answers

Too Bright The front panel (OSD) brightness control is at it's lowest setting and yet the screen is still so bright it's blooming. Cato posted a solution for the Dell P1110 that called for changing a resistor on the CRT controller PCB. That solution worked for that monitor so could it possibly work for this model as well? Thanx dewberr

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  • dewberr Mar 11, 2008

    So, does anyone know where to get a schematic for this beast?
    dewberr

  • dewberr Apr 08, 2008

    Regarding March post about Dell P1130. I have the schematic. The voltage at G2 is too high. Which resistors will cut it down and darken the screen?
    dewberr

  • affa Apr 08, 2008

    Viziks,



    I have a IBM P275 and from the schematics it looks almost identical to the Dell P1130.....



    Anyway, for this fix I am looking at R941, would that be correct? any suggested values? Start with 18M and work my way down?

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

Posted on Mar 10, 2008

  • Samir  Shah
    Samir Shah Mar 11, 2008

    You have to check on the CRT PCB after removing the metal covers which maybe soldered.Normally the pin is labeled G2 and pcb will be cut around this pin to prevent a flashover.Regarding which resistor to change we need to find a schematic to be able to pinpoint which resistor value needs to be changed.

    Hope this helps!

    Samir.

  • Samir  Shah
    Samir Shah Mar 12, 2008

    The schematic is available on www.eserviceinfo.com. Use keywords P1130 and Mfg Dell.

    Please rate my solution.



    Samir.


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  • 4 Answers

Adjust the screen voltage at flyback. Adjust to lower setting until you get the desired brightness.

Posted on May 30, 2013

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