Re: Hitachi P50H401
i have a similar model, i replaced one of the buffer boards. the tv now turns on, but with vertical horizontal lines. so, i should reseat all buffer board flex cables only ? or is there anything else i need to check on?
elchochito
Member
Last Activity: 02-15-2024, 06:19 PM
Joined: 09-09-2013
Location: Mission, Texas
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Re: LG 42pt350 A little help.
Replacement z-sustain board came in today, popped the new one in and tv is fully functional. Thank you tom.. you're the man, I couldn't have gotten my st working if it wasn't for you and the other posters. You all have happy holidays and God bless.....Leave a comment:
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Re: LG 42pt350 A little help.
When i do this, i'm only getting .4omhs. With just the zsustain. I'm ordering a replacing zsustain board and report back. thanks for everything tom, let me know if theres anything i may have missed.h...Leave a comment:
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Re: LG 42pt350 A little help.
When i unplug the y-sustain board the plasma goes back to its original symptoms. attempts to power on twice and then goes back to standby....Leave a comment:
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Re: LG 42pt350 A little help.
Thanks Tom, I really appreciate it. I found the locations I need to test through the service manual you provided. I have one question. The y-sustain feeds from the z-sustain. Is there anyway to bypass that? Or some other way to test. I attached a pic to the back of my tv....Leave a comment:
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Re: LG 42pt350 A little help.
removing both tv actully turns on, i can hear the volume loud, but no video.
voltages are
va 55.4v
vs 202 v
thanks tom, i think we're getting somewhere now.. i just replaced y sustain board. But, apparently that wasn't the problem.
where can i go from here?...Leave a comment:
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Re: LG 42pt350 A little help.
Mr Tom.
My plasma panel model # is PDP42T3####
VS voltage will make my meter fluctuate, but won't get more than 1 volt on it.
VA Same thing, when i turn the plasma on, the meter jumps up and goes down w/thin a fraction of a second....Leave a comment:
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Re: LG 42pt350 A little help.
i figured. where can i go from here? anything else i may be able to test to find out where the problem is?...
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Re: LG 42pt350 A little help.
did the process with the wire, and still the same thing.. tries to turn on twice and goes back to standby.. thank you for your quick reply btw...
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Re: LG 42pt350 A little help.
Thanks for your help.. i'm attaching a pic of the control board and the main board.. let me know if these are ok....Leave a comment:
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LG 42pt350 A little help.
Ok, I'm a newbie in this forum and I'd really appreciate any help I can get.
My LG will not turn on. It will stay on standby click a couple of times, and then goes back to stand by. I replaced the power supply and the y sustain board, that however, did not fix the problem.
Is there any way to test the mainboard? If someone could push me in the right direction, it would be greatly appreciated.
thank you. -
LG 42PT350 not turning on stays on standby
I have an LG 42PT350 tv that i purchased for 40.00 The tv goes on standby and i can hear it click a couple of times, but it never powers on. I replaced the power supply and i still get the same results. I can hear a little humming on the sustain board and a couple of clicks, but no power at all on the tv.
I'm attaching some images. My y sustain board looks kinda cooked from the bottom side, and on top you can see dark like smoke residue on the heat sink. But, when i checked the board, i see no signs of anything popping, and when i run my finger on it, it doesn't stain. Not sure what that... -
Re: New Members - please post your introductions here
Hey guys... I'm very excited about this forum. I'm a computer tech, cell phone repair tech, and i'm wanting to learn how to repair tv's...
EdgarLeave a comment:
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