Having problems with your Compaq FP 5017 15" Flat Panel LCD Monitor ?

My screen flickers on and off

\015 This occurred after an electrical storm and about 2 hours without electricity. The lights flickerd on & off at first, then went out. Screen was plugged in and on at the time. I unplugged the surge protector before electricity was restored. I have tried the monitor several times with my CPU and laptop with same result\015

Answers :

I'm not sure if this is exactly the same issue or not. My monitor would not turn on. I'd get the green power led for half a second or so, then it would go off. No power. This is how I fixed it.
\015\012\015\012\015\012\015\012\015\012\015\012 \015\012 Normal\015\012 0\015\012 \015\012 \015\012 false\015\012 false\015\012 false\015\012 \015\012 \015\012 \015\012 \015\012 \015\012 \015\012 \015\012 MicrosoftInternetExplorer4\015\012 \015\012\015\012 \015\012 \015\012\015\012\015\012\015\012\015\012\015\012 /* Style Definitions */\015\012 table.MsoNormalTable\015\012\011{mso-style-name:"Table Normal";\015\012\011mso-tstyle-rowband-size:0;\015\012\011mso-tstyle-colband-size:0;\015\012\011mso-style-noshow:yes;\015\012\011mso-style-parent:"";\015\012\011mso-padding-alt:0in 5.4pt 0in 5.4pt;\015\012\011mso-para-margin:0in;\015\012\011mso-para-margin-bottom:.0001pt;\015\012\011mso-pagination:widow-orphan;\015\012\011font-size:10.0pt;\015\012\011font-family:"Times New Roman";\015\012\011mso-ansi-language:#0400;\015\012\011mso-fareast-language:#0400;\015\012\011mso-bidi-language:#0400;}\015\012\015\012\015\012\015\012I opened the case and checked the fuse. It was good.
\015\012\015\012I looked at the capacitors and noticed all five of the 470\015\012uf, 16V, 105 C and both of the 1000 uf, 16 V, 105 C units were domed on the\015\012top. This is an indication of “Capacitor Plague.” “Capacitor Plague” is caused\015\012by the dielectric in the capacitor breaking down under excessive strain\015\012(voltage ripple/spiking and heat). This releases hydrogen from the dielectric\015\012which caused the capacitor to degrade. This eventually results in failure. I\015\012replaced all of the capacitors with 25 V, 105 C \015\012(the next higher voltage rating with the same temperature rating) caps.
\015\012\015\012I also replaced the 7.5 V Zener Diode connected to pin 6 of\015\012the PWM. This is ZD904 on my monitor’s power supply PCB but may be different on\015\012yours. The tech data is very bad and the Tech manual part numbering doesn’t\015\012match the numbers on the PCB. Since this is a surface mount diode, and since I\015\012couldn’t find one like it at my local supplier, I used a 5 watt (massively over\015\012sized for the application) 7.5 V unit and it worked. It does require some care\015\012in the soldering of it in place. I did this because I read about it in another\015\012post. I just took the shot and it worked.
\015\012\015\012In any event, having replaced the capacitors and that Zener\015\012Diode, the monitor is functioning again.
\015\012\015\012I hope this helps. Good luck.
\015\012\015\012Bill
\015\012\015\012
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