Hi I have an older Sanyo 50" plasma that had been great. The other day the wife turned on the tv and said the picture just went to black like an old tube tv. I have opened it up and done my research online and can't find any answers. So far I've cleaned up all the dust and went through all the boards with a magnifier glass for any signs and found none. Done voltage checks for Vs,Va,Vsc, and Ve and all were in range. The power on light comes on and power supply clicks and there was audio until the wife change inputs on the remote so now I can't see what input or channel it's on. I have removed the main board and tried the self test jumping Pson to ground and jumping logic pins and you can hear a slight buzz like its cycling through the colors but absolutely no image or color on the screen. I have even swapped logic birds and ran another self test and no luck. The led on the logic board blinks once a second indicatining no problems with y and x but now I'm stumped I don't know what other voltages to check or tricks to try. I almost forgot I removed the ribbon cables on the Y and checked each tab for shorts and none were found. Check all the fuses and they are ok. I don't know what to do and would love a little help. I can't find anything like this on the web most are either shorted Y, blown fuses, and bad caps almost all with visible signs.
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Re: Sanyo plasma DP50747-04. No picture. Fuses ok and logic board shows no error
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Re: Sanyo plasma DP50747-04. No picture. Fuses ok and logic board shows no error
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Re: Sanyo plasma DP50747-04. No picture. Fuses ok and logic board shows no error
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Re: Sanyo plasma DP50747-04. No picture. Fuses ok and logic board shows no error
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Re: Sanyo plasma DP50747-04. No picture. Fuses ok and logic board shows no error
Apologies for the individual posts with the pictures. I've tried several times to do it all at once and haven't been successful so i found a way that works.
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