kodak80 H5 A3 builds

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kodak80
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kodak80 H5 A3 builds

Post by kodak80 »

Okay, starting my build by updating one of my :logo: H4 boards to add a PLCC52 socket, removed the 68901 DIL IC and testing the 68901FN PLCC chips I ordered.

IMG_5542.jpg
IMG_5542.jpg (144.69 KiB) Viewed 4041 times
IMG_5541.jpg
IMG_5541.jpg (172.68 KiB) Viewed 4041 times
All tested and working fine so decided to leave one in the newly installed socket. :D

BOM components all ordered and arrived. Just waiting on the post for the H5 boards.
Atari Falcon 030 | Atari 1040 STE | Atari 1040 STFM | Atari 1040 STF | Kryoflux & Supercard Pro Flux boards
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kodak80
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Re: kodak80 H5 A3 builds

Post by kodak80 »

Whilst others have began the race to build the B1 boards, I have 6 of the H5 A3 boards so I have started building the first one to get this up and working.

First photo of IC22 Reset IC in situ before soldering:
Reset IC22.png
Reset IC22.png (551.25 KiB) Viewed 3773 times
PLC52 SMT socket soldered into place:
PLCC52.png
PLCC52.png (754.34 KiB) Viewed 3773 times
IC6 removed, tracks cut and re-seated using my heat gun. Fix applied:
IC6 removed tracks cut and fix applied.png
IC6 removed tracks cut and fix applied.png (798.64 KiB) Viewed 3773 times
Fix 1 applied underneath board:
Fix 1 applied.png
Fix 1 applied.png (487.79 KiB) Viewed 3773 times
Atari Falcon 030 | Atari 1040 STE | Atari 1040 STFM | Atari 1040 STF | Kryoflux & Supercard Pro Flux boards
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Re: kodak80 H5 A3 builds

Post by Icky »

kodak80 wrote: Mon Nov 30, 2020 10:32 am First photo of IC22 Reset IC in situ and hopefully the right orientation (note big leg located bottom-right):
@kodak80 - that is the correct orientation.
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Re: kodak80 H5 A3 builds

Post by kodak80 »

Thanks for confirming @Icky. I could not find anyone photos on H5 boards already built by the group so far but checked my H4 and the tracks helped even though the IC is now rotated compared to the H4.
Atari Falcon 030 | Atari 1040 STE | Atari 1040 STFM | Atari 1040 STF | Kryoflux & Supercard Pro Flux boards
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Re: kodak80 H5 A3 builds

Post by kodak80 »

So, I may have filed too far on the "SIDE0 FLOPPY SHORT FIX" and I have cut the next track above and may have cut the other 2 tracks above that. Can anyone confirm what the other 2 tracks connect on the board so I can test continuity of these other 2 tracks?

Side 0 floppy short fix (filed too far).png
Side 0 floppy short fix (filed too far).png (663.11 KiB) Viewed 3759 times
I was testing continuity from GND to the floppy pin 32 and filed straight up. It was only when I filed to the left that the continuity stopped but by that time, I had cut the same track as exxos. I suspect I may have also cut the other 2 tracks above. :(
Atari Falcon 030 | Atari 1040 STE | Atari 1040 STFM | Atari 1040 STF | Kryoflux & Supercard Pro Flux boards
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Re: kodak80 H5 A3 builds

Post by Icky »

@kodak80 - I did the same and cut too many.

Let me find out the tracks for you.
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Re: kodak80 H5 A3 builds

Post by kodak80 »

Icky wrote: Mon Nov 30, 2020 10:59 am @kodak80 - I did the same and cut too many.

Let me find out the tracks for you.
Thank you. Will be good to see how much I broke...and needs fixing.
Atari Falcon 030 | Atari 1040 STE | Atari 1040 STFM | Atari 1040 STF | Kryoflux & Supercard Pro Flux boards
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Re: kodak80 H5 A3 builds

Post by kodak80 »

I am pleased to advise, I only seem to have cut the 2nd track. Tracks 3 and 4 pass continuity test. Phew. Only 1 long bodge wire to add and the original fix wire on this board.
Atari Falcon 030 | Atari 1040 STE | Atari 1040 STFM | Atari 1040 STF | Kryoflux & Supercard Pro Flux boards
Creator of the Atari ST Review magazine archive: https://www.chillichai.com/atari-st-review
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Re: kodak80 H5 A3 builds

Post by PaulJ »

Icky wrote: Mon Nov 30, 2020 10:34 am @kodak80 - that is the correct orientation.
Ya know Icky, you all most fooled me! You changed the orientation of the reset chip 90 degree's from the H4 so when @PhilC soldered his on he'd get it right the first time. I was going to place it the same orientation as the H4 but luckily I checked first. :foldarms:
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Re: kodak80 H5 A3 builds

Post by exxos »

PaulJ wrote: Mon Nov 30, 2020 5:27 pm Ya know Icky, you all most fooled me! You changed the orientation of the reset chip 90 degree's from the H4 so when @PhilC soldered his on he'd get it right the first time. I was going to place it the same orientation as the H4 but luckily I checked first. :foldarms:
Phil blew up 4 before he worked it out it changed :lol: Yeah never assume anything ;)
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viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
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