Question about Dell W4201C 42 in. Plasma HDTV

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No Picture Dell W4200HD has ready light. When I hit the power button, the power button goes from standby(purple) to on(blue). After 5 seconds, I can hear the 12v and 5v sub power go out in sequence. After this, the power on(blue) light stays on, and the only way to turn it off is to disconnect it.

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  • Roderic Collins Dec 29, 2008

    I changed power supplies, but still had the same symptoms. At that point, I then proceeded to check all connections and make sure that they were making contact. I tried the power button again, paid attention to the led's on the main i/o board, and noticed that they were all lit, and stayed lit. I then connected the cable input, and enjoyed the beautiful picture that came out.

  • RJP1965 Mar 09, 2009

    My apologies to the community. It looks like I posted my same problem incorrectly as a solution. I do not have a solution to this problem yet.

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I had the same problem and I found a shorted 100uF 100V electrolytic capacitor on the lower logic level scan board. This board was located underneath the I/O tuner section on the tv. This shorted capacitor was keeping the 70V "VA" power supply output from starting. There are 8 caps total on the 4 logic level scan boards in the tv so you should replace them all.

Posted on Jul 11, 2010

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Hello. It looks like I have the same problem that you had with your Dell W4200HD.

Where did you find the new power supply for yours?

Also, did you determine that you didn't really need a new power supply and that it was just a connection problem? If yes, could you please give me some help with what you did to get yours working.

Also, do you still have the power supply you took out of your TV? If yes, would you be willing to sell it to me?

Thanks in advance for your assistance.

Rocky Pruitt
rjpruitt@rjpruitt.com

Posted on Mar 09, 2009

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