Paul's H5C5B Build

All related information and builds for the 2025 edition.
plee1024
Posts: 11
Joined: 03 Jan 2024 23:56

Paul's H5C5B Build

Post by plee1024 »

Received the board today.

20250317_154158[1].jpg
20250317_154048[1].jpg
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plee1024
Posts: 11
Joined: 03 Jan 2024 23:56

Re: Paul's H5C5B Build

Post by plee1024 »

Completed the chip smoke "reverse"
20250317_162630[1].jpg
20250317_162520[1].jpg
Installed jumpers, video connector, reset and chip installs
20250317_204442[1].jpg
After switching the jumper to GLUE ROM decoding
20250317_204330[1].jpg

Plan to add a few more connections (cart/ASIC) and an IC socket.
Reset switch needs to be redone, just not on there as I think it should.

Overall, so far the chip flip was probably the hardest part for me, not an
expert at de-soldering small chips like that.
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exxos
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Re: Paul's H5C5B Build

Post by exxos »

:bravo: :2k2:
plee1024
Posts: 11
Joined: 03 Jan 2024 23:56

Re: Paul's H5C5B Build

Post by plee1024 »

Added the cartridge connector and something happened and it started to act strange. It would only boot one time
and on the second time it would be a white screen. I would have to wait a few minutes and unplug the power and
video then try again and it would boot but again only the one time. I used the diagnostic cartridge and it did appear.
So I took off the connector and now nothing but a white screen. Tried replacing different chips to see if that was
issue and unfortunately put in the DMA chip backwards and now that's toast (do have an extra one). Still have the
white screen not sure what to do at this point. :(
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exxos
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Re: Paul's H5C5B Build

Post by exxos »

According to your image, your missing the flashy clock jumper link...

viewtopic.php?p=125028#p125028
plee1024
Posts: 11
Joined: 03 Jan 2024 23:56

Re: Paul's H5C5B Build

Post by plee1024 »

Added the flashy clock link, still just a white screen. Took off the reset button, don't think that
would be a problem right now...
20250319_155800[1].jpg
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exxos
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Re: Paul's H5C5B Build

Post by exxos »

I suggest you work through the troubleshooting steps
viewtopic.php?p=29460#p29460

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