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Found these inside a non-working 71B
03-17-2018, 01:41 AM (This post was last modified: 03-17-2018 01:45 AM by Paul Berger (Canada).)
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RE: Found these inside a non-working 71B
(03-17-2018 12:20 AM)Dave Frederickson Wrote:  
(03-16-2018 11:50 PM)Paul Berger (Canada) Wrote:  Visually with a USB microscope its only a double sided board, I also grounded pin 11 and it did nothing.


Paul, you're absolutely right! The CMT module has been modified. The "LCIM" signal comes up from the PCB to pin 11. The blue wire is connected from pin 11 to a via next to a cut trace on the bottom side of the memory module. This is undoubtedly connected to the ID pin on the memory controller and the cut trace is likely VCC.

If anyone is interested in performing this mod I can provide a pic of the cut trace and via.

Yes please, and I am pretty sure M. Garnier will be interested as well.

(03-17-2018 12:20 AM)Dave Frederickson Wrote:  On an unrelated note, on which USB microscope did you settle?


I got an Andonstar, the silver tube model, I see they have some others now including one that has a tiny screen built in. It works pretty good but the stand is a bit shaky, jumps around a bit much when you are trying to focus or adjust height. I have yet to try building under it but I do think it will work ok.

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Messages In This Thread
What's U10? - Dave Frederickson - 03-15-2018, 03:43 PM
RE: Found these inside a non-working 71B - Paul Berger (Canada) - 03-17-2018 01:41 AM

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