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42 vizio plasma vp422hdtv10a no picture

 
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nicebreed
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PostPosted: Mon May 24, 2010 1:31 am    Post subject: 42 vizio plasma vp422hdtv10a no picture Reply with quote

Hi, if any one can I need some help. my viz lost its picture, but retains the sound. I have checked some blogs and read that its probably the backlight inverter. After research I cannot find a component that matches any board in the television. do plasmas not have one? and any suggestions for trouble shooting. limited knowledge in this area. Any help would be awesome! Thanks! Shocked
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jts1957



Joined: 24 Nov 2008
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PostPosted: Mon May 24, 2010 4:02 am    Post subject: Reply with quote

No, they do not.
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nicebreed
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PostPosted: Mon May 24, 2010 7:04 am    Post subject: Reply with quote

Thank you! I shall stop looking for one then. Do you by chance have any suggestions?
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Minimess



Joined: 24 May 2010
Posts: 14

PostPosted: Mon May 24, 2010 6:21 pm    Post subject: Re: 42 vizio plasma vp422hdtv10a no picture Reply with quote

nicebreed wrote:
Hi, if any one can I need some help. my viz lost its picture, but retains the sound. I have checked some blogs and read that its probably the backlight inverter. After research I cannot find a component that matches any board in the television. do plasmas not have one? and any suggestions for trouble shooting. limited knowledge in this area. Any help would be awesome! Thanks! Shocked


Plasmas do not have backlight so there should be no inverter. Check out the connections to see if anything is loose. How long have you had this TV?
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nicebreed
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PostPosted: Wed May 26, 2010 3:50 am    Post subject: Reply with quote

not long. picked it up from the pawn shop in as is condition. I like to tinker on things and learn so I tore into it
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nicebreed
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PostPosted: Thu May 27, 2010 6:31 am    Post subject: Reply with quote

all connections appear to be wound. I unplugged each buffer board one at a time and no change. The led vizio light turns on, can hear the relays click on the power board, don't smell any magic smoke, nothing appears to be overheating. any other ideas? logic board perhaps? oh, there is a blinking green light when I turn the television on, on the logic board. Is it supposed to blink or stay solid green? Thank you so much! Toby
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minnie



Joined: 18 Aug 2005
Posts: 2877
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PostPosted: Thu May 27, 2010 9:08 pm    Post subject: Reply with quote

Have you checked the VS and VA voltages out of the power supply?
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nicebreed
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PostPosted: Fri May 28, 2010 2:48 am    Post subject: Reply with quote

limited tools. can I use a multi meter with out causing more damage to the components?
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nicebreed
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PostPosted: Sat May 29, 2010 8:06 am    Post subject: Reply with quote

thanks for our help going to the dumpster
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Minimess



Joined: 24 May 2010
Posts: 14

PostPosted: Mon Nov 01, 2010 9:23 pm    Post subject: Reply with quote

nicebreed wrote:
thanks for our help going to the dumpster


Sad to hear that mate Sad
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