I usually have an image, as I wrote below the main problem I am facing lately is that after some time the tv shuts down randomly and If I wait a few seconds it works OK again until the next random shut down.
As I understand the autogen is just to diagnose if there is a problem with the inputs and/or the main board. This is not my case as I understand it......
theone111
Member
Last Activity: 08-03-2024, 05:20 AM
Joined: 03-11-2022
Location: Ness Ziona
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Hello,
My name is Dan. I am an Electronics Engineer.
Aside from at work, I also like tinkering and fixing electronics at home....Leave a comment:
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Problem with LG Plasma 60PM6700 - Random power downs
I have an LG Plasma TV 60PM6700 for the past ~12 years.
In the last ~3-4 months I have been having some issues.[LIST=1][*][B][U]Problem:[/U][/B] It started with random picture disappearing (sound still worked).
[U][B]Frequency:[/B][/U] Happened about once a week.
[U][B]Solution:[/B][/U] Had to turn off TV wait a few seconds before turning it on again.[*][B][U]Problem:[/U][/B] Then it got worse and the TV started to shut down and when turning on the no picture just sound.
[U][B]Frequency:[/B][/U] Happened about once a week.
[U][B]Solution:[/B][/U] Had to... -
Re: APC BR550GI Pro UPS not charging battery
So I have tested the UPS after the capacitors replacement and it seems to work.
Thank you @benq32...Leave a comment:
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Re: APC BR550GI Pro UPS not charging battery
So I replaced c18 and c32 (i measured them after removal and they were about 300uf instead of 330uf).
Now I get 14.1v when no battery connected and get charging current (measured on the battery wires) of about 0.5A and battery voltage increasing slowly.
Is this charging current OK?Leave a comment:
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Re: APC BR550GI Pro UPS not charging battery
Did you measure them (C18, C32) out of the board (removed from board)?
I meausred them on the board (they seem to be connected in parallel and got ~600uF (they are each marked as 330uF 35v). I will try and remove them and measure outside the board.
When I power up the UPS with no battery connected I get ~5.4v and a buzzing sound (see attached zipped video)...Last edited by theone111; 03-20-2022, 09:35 AM.Leave a comment:
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Re: APC BR550GI Pro UPS not charging battery
I have no idea what it is. There are no markings....Leave a comment:
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Re: APC BR550GI Pro UPS not charging battery
IC2 is TNY278PN (I am waiting for order for replacement - maybe it will help)
What device looks odd? The silver one I marked PINK In attached picture? I don't know what it is? Why do you think it odd?...Leave a comment:
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Re: APC BACKUPS-RS550 not charging battery
Any luck finding and fixing? I have the same model and problem....Leave a comment:
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APC BR550GI Pro UPS not charging battery
I have an APC BR550GI Pro UPS
[url]https://www.se.com/il/en/product/BR550GI/apc-powersaving-backups-pro-550/[/url]
The motherboard model I have in the UPS is the 640-1172A-Z_REV05
The problem I have is that my UPS does not seem to charge the battery when ON.
After charging the battery with an external battery charger and installing into the UPS (updating change date) the battery drains slowly ~7% every 12 hours [B]with no load connected[/B] (the PowerChute SW show decrease in jumps of ~7% not 1% decrements).
I think it does charge the... -
Re: New Members - please post your introductions here
Hello,
I am an electronics engineer with mainly digital board design and FPGA programming knowledgeLeave a comment:
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Re: APC BACKUPS-RS550 not charging battery
I have a similar problem with an APC BR550GI Pro UPS
[url]https://www.se.com/il/en/product/BR550GI/apc-powersaving-backups-pro-550/[/url]Re: APC BACKUPS-RS550 not charging b...pro-550/[/url]Leave a comment:
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