exxos's H5 C1 build

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Steve
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Re: exxos's H5 C1 build

Post by Steve » Sat Jul 31, 2021 12:59 pm

I knew something must have been screwy with my board since the beginning, I've never had any luck with it. Really glad you are looking into it thx :)

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Icky
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Re: exxos's H5 C1 build

Post by Icky » Sat Jul 31, 2021 1:50 pm

Odd as I have never had issues with the 3V3 bus or regulator. I know there are 7x 5V <-> 3V3 translator chips across the 3V3 already.

Duff chip may be? Not anywhere near my H5's to check.

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exxos
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Re: exxos's H5 C1 build

Post by exxos » Sat Jul 31, 2021 3:21 pm

Icky wrote:
Sat Jul 31, 2021 1:50 pm
Odd as I have never had issues with the 3V3 bus or regulator. I know there are 7x 5V <-> 3V3 translator chips across the 3V3 already.

Duff chip may be? Not anywhere near my H5's to check.
It's not duff... Under a 1k load it outputs the correct 3.3v.
https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.

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Icky
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Re: exxos's H5 C1 build

Post by Icky » Sat Jul 31, 2021 4:00 pm

exxos wrote:
Sat Jul 31, 2021 3:21 pm
Icky wrote:
Sat Jul 31, 2021 1:50 pm
Odd as I have never had issues with the 3V3 bus or regulator. I know there are 7x 5V <-> 3V3 translator chips across the 3V3 already.

Duff chip may be? Not anywhere near my H5's to check.
Its not duff... Under a 1k load it outputs the correct 3.3v.
:)

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exxos
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Re: exxos's H5 C1 build

Post by exxos » Thu May 12, 2022 1:40 pm

Finally got around to ordering the 220K 0805 resistors to fix the 3.3V bus properly.

I just blobbed normal solder on top of them to remove them all. Clean the pads up with some desoldering braid. Added a tiny bit of SMT paste and heated the suckers up. Done!

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https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.

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