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mrbomber's Falcon service blog
Posted: Sun Nov 28, 2021 6:07 pm
by Steve
I'm doing some work on
@mrbombermillzy's Falcon, namely: removing old clock patch, installing exxos clock patch, fit new floppy header, investigate DSP issues.
Link to mobo information
here
I've always wondered what this SCSI capacitor mod was for, it's on most C-Lab falcons, @mikro do you know? thx
- scsi_capacitor.jpg (551.57 KiB) Viewed 2194 times
Start with the easiest job, fix up the floppy header
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- fdd gone.jpg (469.23 KiB) Viewed 2194 times
- new fdd.jpg (589.12 KiB) Viewed 2194 times
Re: mrbomber's Falcon service blog
Posted: Fri Dec 10, 2021 7:49 pm
by Steve
Re: mrbomber's Falcon service blog
Posted: Mon Dec 13, 2021 5:52 pm
by Steve
Time to investigate the DSP issues. Beforehand the DSP was not working at all, failing all tests. It was previously replaced by someone and some traces were patched.
I'm not quite happy with the soldering
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Here I can see some bridged pins
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I've cleaned up the soldering, removed any bridges and removed the patch for the clock pin because I didnt like the look of it. I've pulled the clock pin up where I'll run a patch cable to.
- PXL_20211213_154433182.jpg (340.67 KiB) Viewed 1994 times
Okay clock pin re-patched. Now check under the board.
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One of the via patch cables done previously are just sticking out quite far and doesn't look soldered properly.
- PXL_20211213_163142542.jpg (423.07 KiB) Viewed 1994 times
Okay that's fixed now...
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Yay! passing all tests now!
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- PXL_20211213_173517653.jpg (468.22 KiB) Viewed 1994 times
- PXL_20211213_173930834.jpg (469.75 KiB) Viewed 1994 times
Re: mrbomber's Falcon service blog
Posted: Mon Dec 13, 2021 6:07 pm
by Steve
Just testing the new floppy IDC header, working great!
- PXL_20211213_180526470.jpg (364.1 KiB) Viewed 1986 times
Re: mrbomber's Falcon service blog
Posted: Wed Dec 15, 2021 11:14 am
by mrbombermillzy
And here we are, all safely delivered and re-installed at home (very hastily, I might add):
- P1040123.JPG (65.8 KiB) Viewed 1920 times
Just keeping this little critter occupied (currently watching the Hmmm... demo) was worth the price!
(Sorry about the blurry picture; too many 'sticky paws' on the lens I'm guessing. I wonder who would have done that?)
Many thank Steve! Just made my Christmas!!
Re: mrbomber's Falcon service blog
Posted: Wed Dec 15, 2021 11:52 am
by Steve
Brilliant!!!! Cheers for the update!