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 Post subject: Board ID 13
PostPosted: Sun Sep 13, 2020 10:50 am 

Joined: Thu Aug 20, 2020 8:15 pm
Posts: 53
Thanks,BearScrapper. Not sure if that's a cpu on board E, alot going on such as small board. Board G is heavy what kind of board is it? Appreciate it


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 Post subject: Re: Board ID 13
PostPosted: Mon Sep 14, 2020 11:30 am 

Joined: Thu Aug 01, 2019 6:55 pm
Posts: 140
DO NOT MESS WITH BOARD G!!! Bring it to your local hazmat center.

It appears to have wetted mercury relays on it on the left side, when the board is in non expanded view. They look similar to a loaf of bread. Also has lead solder on it too.

I have attached a link to a very similar board to the one that is in question.

viewtopic.php?f=4&t=18578


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 Post subject: Re: Board ID 13
PostPosted: Mon Sep 14, 2020 3:17 pm 
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Joined: Tue Feb 03, 2015 6:57 pm
Posts: 7796
Location: Low DOS
Peripheral
Peripheral
Peripheral
Peripheral
Peripheral
Peripheral
Note
Peripheral

Note: ate the moment I say don’t send. I need a much cleaner image of the components on this board (clear model/I’d numbers) to verify there’s no mercury

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 Post subject: Re: Board ID 13
PostPosted: Mon Sep 14, 2020 7:12 pm 

Joined: Thu Aug 20, 2020 8:15 pm
Posts: 53
Have a few closer pics fer you, hope it's helpful. What would this board be used for. TV?? Thanks BearScrapper


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 Post subject: Re: Board ID 13
PostPosted: Tue Sep 15, 2020 2:54 pm 
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Still searching
I’ll let it run in text mode for now too just in case... but I forwarded it to Chris as well.

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 Post subject: Re: Board ID 13
PostPosted: Tue Sep 15, 2020 4:09 pm 
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Joined: Thu Sep 05, 2013 2:28 pm
Posts: 307
Unfortunately we would not buy that board, in fact there could be a disposal fee for it if there were enough of them.

The reason is that there are Mercury Relays on that board which are not to be removed as they are a hazardous material.

You can easily identify them by the label on the little rectangular box that says "Do Not Open". They often say MWR, MW, WE or Wet Relay but most of the time they will at least carry the warning but not always.

They are not something that you will see very often and are typically associated with telephone switching equipment.

Even still, that board would probably be a midgrade board only due to the amount of junk versus quality. This is a good candidate for removing the IC's and junking the remains, which would be low grade at that point, had there not been those merc switches on them which has rendered the board value-less.


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 Post subject: Re: Board ID 13
PostPosted: Tue Sep 15, 2020 4:27 pm 
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Yep. Chris got here before I did. Got them as an alternate part number. Definitely a no go on this board.

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 Post subject: Re: Board ID 13
PostPosted: Tue Sep 15, 2020 6:23 pm 

Joined: Thu Aug 20, 2020 8:15 pm
Posts: 53
Thanks again, have a saying that fits this forum well.

Aquire new knowledge whilst thinking over the old, and you may become a teacher of others. BearScrapper


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 Post subject: Re: Board ID 13
PostPosted: Fri Sep 18, 2020 3:43 pm 
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AAK2 wrote:
Also has lead solder on it too.


Not quite. This is one of those middle finger salute boards. That’s leaded silver!

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