AdamWade
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Oct 6, 2011, 6:17 PM
Post #1 of 4
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Plasma not turning on..... (a bit of diagnosis has been done)
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Hi All!
If there is anyone out there who could help me it would greatly be appreciated! Ok here we go sorry if it's long but I've been trying to do a bit of trial and error.
My Sinoteq (LG guts inside) 42" plasma decided that the screen should stop working. When it was turned on there was perfect sound but no picture. I then took the fuses out of the Y-sus and Z-sus boards. Turns out one was blown. So I changed that fuse and put them all back in.
When I turn it on now the little light turns blue (as it should) and after about 2 seconds it goes back to standby (red light). This happens over and over. When it is on for that brief time the power board makes that familiar TV 'static' sound before turning off after its two seconds. Then a bit more trial and error. I unplugged the Y-sus and Z-sus boards and turned on, and hey it didn't turn off after 2 seconds! I then plugged the Y-sus board back in and turned on, and yup it stayed on again (but no sign of a picture). Upon plugging the Z-sus back in it went back to its shenanigans and turned off after 2 seconds.
So that's the tedious story.........
Is it possibly because the power bored is not distributing enough power or the wrong voltage (sorry about the terminology) to power the screen?
Or, could it be something else?
I've checked all the capacitors for bulging or popping and they all look like they are in 100% working order.
Thank you in advance! If you have read this far I congratulate you on reading this novel!
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