I just Bought a Zenith 50 in. plasma tv at a yard sale and the guy who sold it to me said that he did not know what was wrong with it. when i first turned it on the screen looked like the plasma in it was slowly forming the picture, i hooked up my wii to it to see how the color was, I could barely make anything out it was like it was in black and white. so i started to mess around in the menu on the tv, i reset the settings, and nothing happened. after turning the brightness and contrast all the way down i could start to see the menu of the wii. i think it might be a problem that a new YSUS board could fix but i'm not 100% sure. Please help!

SOURCE: ZENITH P42W34P does not turn on

I have a pdf file of the service manual- if you want it, let me know where to send it.

SOURCE: MY Plasma Zenith TV went "POP"?

For those of you suffering with the loud POP and dead syndrome on this model the "guest" comments here are correct. The Y-Sustain, Z-Sustain and both the upper and lower Y-Drive boards are usually replaced at the same time to prevent any damage from taking out the Y-Sus and Z-Sus boards a second time. You might like to know that the original part numbers for both the Sustain boards have been changed since original manufacturing in an attempt to prevent this problem from happening again and these parts are NOT cheap.
Y-Sus - p/n# 6871QyH039B - $337.74
Z-Sus - p/n# 6871QzH044C - $244.68
Lower Y-Drive - p/n# 6871QdH089A - $132.48
Upper Y-Drive - p/n# 6871QdH088A - $132.48

Above prices do not include shipping or sales tax if applicable.
Unfortunately techs have little voice in trying to get the manufacturers to correct these problems before the warranty runs out - knowing that after warranty repairs are going to be met with quite some resistance when it's coming out of the consumer's pocket.
Also, for reference, I've done about half a dozen of these and all have been under some warranty or extended warranty. Labor was approximately 6.5 hours so you can plan to spend roughly $1400 - $1600 for this repair..
Thought maybe if I posted here it would help a few find the answers they were looking for..
Bill

SOURCE: 3 loud pops and picture faded away

ours was off all day and it pop 2 times and now no picture at all.

SOURCE: ysus board

the mainboard, controls the audio, Tv Tuners, Vga , HDMI, S- Video inputs.

The Y sus or (Y-Mainboard ) Is used to control the Panel (LCD) Video, it has 2 buffers that contol h/v lines in upper & lower regions.

SOURCE: heard a loud pop in my zenith 50

LG Inside.

Needs either a Y-Sustain or a Z-Sustain.

Whichever has the blown fuse inside.