I can pick up this tv for free if I take the 1 1/2 hour drive. Does this tv seem to have ysus problem?
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Re: 50pj350
Wow. I get mine for free. Right in town. I have one like that. But far worse. I think mine is panelI assume no responsibility for any stupid suggestions I might post. -
Re: 50pj350
Z susComment
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Re: 50pj350
It looks like this tv only has one version of the zsus. Does anything stand out to you that goes bad? I will pick it up on Sat. I will test everything. If I cant find it they sell one one ebay for $20. Thanks for the help Hamie.Attached FilesComment
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I have an LG plasma that after reading through a bunch of posts and doing some testing I believe has a bad YSUS board. The problem is that that doesn't make sense to me for some of the symptoms. The problem started yesterday. While watching a movie the TV just shut down like I pressed power. I have it hooked to a PC and use RS232 to turn it off and on so I thought maybe something had glitched there. I turned it back on and finished the movie with no problems. The same thing happened today so I checked logs to see if something in the control glitched and sent an off command but it didn't, After... -
Hi
Had shorted YSUS
Q24 RPJ63F3
C726 cap
Q11 K3667
R528 & R529 2.2 ohm
replaced all of these but still trips psu VS & VA are a bit low when ysus disconnected. IC301 does look a bit burnt however
ZSUS is also good as far as I can tell
Anyone could help me out on this one -
LG42PC3D -UD originally with green lamp but no display or audio.
Owner says was working, then went 'pop'.
All 5V caps bulging. replaced.
All PSU output voltages within spec but -Vy is low on YSUS.
One of three parallel fets between SUS_OUT and SUS_DN is zenering,
eventually shorts DG. Replaced all 3 - -Vy now OK.
Y scan buffer test point does not follow YSUS output below -50V
Note: This unit seems to expect YSUS output to park at -Vy in between
drive signal pattern periods. A replacement drive signal board confirms this....11-18-2021, 11:49 AM -
Greetings all!
Originally this set had the usual messed up video symptoms such as: horizontal lines, weak, grainy video, bottom and top of picture differ in intensity of problem. It also seemed to slow to turn on or show the messed up picture.
Seemed like must be YScan/buffer board failure. Ordered buffer boards from my distributor which were supposed to be original/new and also from another distributor, I ordered the YSUS because I wanted to replace it for preventative maintenance. (also, the YSUS had a bulged cap, so there was even more reason to suspect it could... -
I have a TX NR414, well I have two actually which are both exhibiting the same issue.
The one I've had since 2012 developed DC offset of around a volt under load on the front right speaker output. Not enough to trip the protection but enough to be noticeable in terms of sound quality. I checked the preamp board and couldnt see anything obvious. The offset is too high really to be a drift issue right?
I put the amplifier away for a while. I managed to pick up another example with a dead HDMI board very cheaply (common on these - mine was replaced by Onkyo several years...
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