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    #1

    Help Dell E173fpb 17inch monitor

    Hi all just joined the forum after some help if anyone knows what this problem may be...
    i aquired this monitor about a year ago from our local landfil site it was dead anyway thanks to the internet found that the 2 pairs of invertors can go short so i repl all 4 ...bingo all worked fine...component ref q740 q760 q739 q759..

    problem now very different it will switch on fine and work some times for 10 mins sometimes for hours but then it just goes off. we found if we unplug the mains for a short while it then powers up again fine. there is no standby light its just as if you have pulled the mains. i am checking caps for bulges etc but no luck there has anyone had these symptons or could suggest a fix,,
    many thanks agn
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    #2
    Re: Help Dell E173fpb 17inch monitor

    Do the standby and power led work correctly during the time the monitor is working?

    Sounds like the PSU is shutting down because it's detecting a short or you have bad solder joints.

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      #3
      Re: Help Dell E173fpb 17inch monitor

      hi thanks for reply..
      yes power etc works fine while monitor is behaving...at mo just soldered some joints and dell test logo is bouncing around the screen..
      i will leave it on and see what happens..
      thanks again..

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        #4
        Re: Help Dell E173fpb 17inch monitor

        Originally posted by mastercare View Post
        at mo just soldered some joints and dell test logo is bouncing around the screen..
        You *must* resolder all the inverter transformer (the 4 yellow boxes that start with a "T") pins for Benq power/inverter boards. If you don't, it will cause the c5707 transistors and the picofuse to possibly go bad or cause symptoms like what you are seeing.
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          #5
          Re: Help Dell E173fpb 17inch monitor

          Originally posted by retiredcaps View Post
          You *must* resolder all the inverter transformer (the 4 yellow boxes that start with a "T") pins for Benq power/inverter boards. If you don't, it will cause the c5707 transistors and the picofuse to possibly go bad or cause symptoms like what you are seeing.
          thanks for the information, i have soldered all the pins on the transformers and so far so good, its been running now for about 4 hours so i will see how it goes..
          many thanks guys.

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            #6
            Re: Help Dell E173fpb 17inch monitor

            resolder the grey box caps and the 5707's too

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