I have a 34 month-old 60" plasma that one day stopped displaying a picture. Since it was tuned to a live input I could hear the audio perfectly. Actually, the picture was dark except for the floating "No Signal" box that was extremely intermittent in flashing on the screen. Like it would flash on for maybe 2/10 of a second then nothing for 5 seconds then again, flash for 2/10ths. Also some white sparklies (?) in a line at the very top of the screen. Almost like a digital signal blinking in spots on/off.
Reading threads here led me to believe it was the YSUS and seeing a few posts about having a bad buffer board kill a good YSUS, I figured I would just buy all 3 and replace. So, I ordered and installed new YSUS and U/L buffer boards. Nothing. I was pissed! I thought I had it! Now the floating box and white lights don't appear at all.
I have yet to check voltages, and yes, have a DMM but no scope (and dont remember how to use a scope). Also, own 3 soldering irons and am decent with them.
Oh, the remote works perfectly. I can change the input (blindly) and cycle through the different inputs. Red light on lower edge of bezel lights like normal when turned off, and Blue light on lower edge of bezel lights up like normal (I think) when powered up.
I hope I've covered as much as I can remember to. Questions? Suggestions? Help, please.
Thanks guys.
Reading threads here led me to believe it was the YSUS and seeing a few posts about having a bad buffer board kill a good YSUS, I figured I would just buy all 3 and replace. So, I ordered and installed new YSUS and U/L buffer boards. Nothing. I was pissed! I thought I had it! Now the floating box and white lights don't appear at all.
I have yet to check voltages, and yes, have a DMM but no scope (and dont remember how to use a scope). Also, own 3 soldering irons and am decent with them.
Oh, the remote works perfectly. I can change the input (blindly) and cycle through the different inputs. Red light on lower edge of bezel lights like normal when turned off, and Blue light on lower edge of bezel lights up like normal (I think) when powered up.
I hope I've covered as much as I can remember to. Questions? Suggestions? Help, please.
Thanks guys.
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