"so well soldered" is no problem at all.
If you want to remove without any drama or damage, get the smallest pack of chipquick or sra fastchip.

https://www.sra-solder.com/fast-chip-kit-for-quik-smd-removal

https://www.youtube.com/results?search_query=desoldering+alloy

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bkw

On 11/7/21 4:57 PM, George Goodman wrote:
FYI, it appears the pot is dead, dead, dead (well, it isn't potentiating, just letting a rather small bit through). That pot is so small and so very well soldered to the board that I don't think I can do anything about it. It appears that this M100 will become my donor.

My second system arrives this week.

Thanks for all the help, folks!

george g.

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Thanks!


On Thu, Nov 4, 2021, at 12:19 PM, George Goodman wrote:
Hi all,

My M100 display seems to have taken a turn for the dim. See the images in this shared folder —> *https://www.dropbox.com/sh/y1cpftct6dgqy2j/AAAEb3PmIC1b30qh7FV_WX4ea?dl=0 <https://www.dropbox.com/sh/y1cpftct6dgqy2j/AAAEb3PmIC1b30qh7FV_WX4ea?dl=0> *
**
I can’t point to anything that happened. I started an install of TS-DOS from my Backpack and, once the Initial Program Load began, stepped away from my desk to get a glass of water. When I returned a few minutes later I thought the M100 had flat out died. I removed the Backpack and tried turning the M111 on and off and even did a hard reset. No joy…I thought.

I happened to sit down at my desk and catch a more extreme viewing angle of the display. That’s when I realized that there was just a display issue. I verified that I can start up Basic, make the system beep, open Text, etc. However, I haven’t found anything that will get the display back to good viewing from overhead.

BTW, I did try the contrast dial and that didn’t have any impact. The images in that shared folder were taken with the contrast at its highest.

Does anyone have suggestions for debugging and fixing this?

Thanks,

george g.



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bkw

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