Re: What voltage should come out of the YER connector
ok thanks for the explanation. you know, when I measured my voltage 198v out of the YERs the connector between the y sus and z sus wasn't connected.
that is perhaps why I got a so high volatage???? are you really sure it should be half of that. or does it not half when boards are all connected together and screen lights up, sucking some of the voltage.
by the way, I don't try to challenge but only understand. I am really tempted to buy a z sus board and try you know. it only cost 30 pounds, that...
FrenchConnection67
Member
Last Activity: 03-08-2021, 04:08 PM
Joined: 07-15-2014
Location: liverpool
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Re: What voltage should come out of the YER connector
can you give me more info on what this yer output is really for? much appreciateLeave a comment:
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Re: What voltage should come out of the YER connector
I see where you re coming from but I really wanted to keep it and try to repair it.
what does yer and zer stand for by the way tom?Leave a comment:
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Re: What voltage should come out of the YER connector
ok therefore my z sus is definitely in short circuit. now, you also said that I get a too high voltage out of the YER connector, does this mean that my y sus is faulty as well because if it is the case I could forget to repair this tv, not worth it. that would be a bad newsLeave a comment:
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Re: What voltage should come out of the YER connector
ok thanks tm66
and what about the continuity between the ZER and gnd?Leave a comment:
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What voltage should come out of the YER connector
hi there, just trying to fault find my faulty plasma. I ve narrowed down my doubts on either the y sus or the z sus boards. I measure 194v out of the connector's pins labelled ZER on the y sus board, supplying my z-sus board. Is this value ok to youz, expert?
also I ve taken out my z sus board and get a perfect continuity between the ZER connector's pins and ground which looks like a short circuit to me. I also get contuinity between ground and all the z sus out pins of the IC.
therefore I suspect a short circuit on that board, most probably on the IC but before I...Last edited by FrenchConnection67; 07-19-2014, 05:48 AM. -
Re: need help troubleshooting lg plasma
anyone else? any ideas guysLeave a comment:
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Re: need help troubleshooting lg plasma
so i ve measured again but now from gnd and vs and get a normal reading, no continuity (on both boards)
any other test i could do to isolate whether it is really the y main and not the x main causing the problem. Because how do you explain that when i disconnect the ribbon cable between the logic board and the y main, the tv turns on with the y main connected but not with the x main?
but when the ribbon is connected, none of the board are allowing the tv to turn on?????? confused thereLast edited by FrenchConnection67; 07-16-2014, 02:23 PM.Leave a comment:
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Re: need help troubleshooting lg plasma
yes i read 0.2 ohms across the two vs pins on both boards being not connected toguether. why? what kind of reading should we roughly get? are they not connected toguether as they supply the same voltage?Leave a comment:
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Re: need help troubleshooting lg plasma
i ve hold my measures for at least 1 minute and it reads 0.2 ohms same as on the y sus board (said 0.02 before but misspelled it).Leave a comment:
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Re: need help troubleshooting lg plasma
yeah i ve also seen that y sustain board for 54 pounds. a bit expensive like, but i ve also seen a a ipm repair kit for 24 pounds which might be the solution. i have three different soldering irons but not that powerful, i have soldering gun though and this is very powerful however not that precise due to its big tip. i ll find a way anyway.
but you know i ve also measured between the two vs on the psu and got the same value 0.02 ohms (disconnected from the y sus), is that normal?Leave a comment:
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Re: need help troubleshooting lg plasma
i ve just measured between the two vs pins on y sustain board and it reads 0.02 ohm.Leave a comment:
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Re: need help troubleshooting lg plasma
Hi tom, the model nunber is 42pt85 sorry my mistake.Leave a comment:
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need help troubleshooting lg plasma
Hi everyone,
I would appreciate some help for troubleshooting my plasma lg 42gt45.
Please see what i ve tested so far below:
Fault symptoms: power supply shuts down instantly after turning on the tv.
Tests:
1. Checked my psu output with everything connected none
2. Disconnected the z sus and tried, fault remains the same
3. Disconnected the y sus and tried, tv turns on, main board lights turns on, vs and va outputs are good for about 10-15s and then goes dead but tv stays on. Now i am wondering... -
Re: New Members - please post your introductions here
Hi there, I am new to this forum and have started recently to repair Tv for my leisure.
Have a a good day every oneLeave a comment:
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