H5 REV C2 CHANGES & FIXES

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exxos
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H5 REV C2 CHANGES & FIXES

Post by exxos »

Just making a note of the changes to a future revision C2.

Changes are making some of the text lager and "grouping" text to header in a outline box.

EG:

Audio fix

100K resistor added to correct biasing issues (causes fading YM audio volume)

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New HDINT pad. Easier to solder & locate for the HDD INT wire..

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There are currently no other intended changes at this time.
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Re: H5 REV C2 CHANGES & FIXES

Post by exxos »

I think one of the annoying things is the jumper for flashy clock. So I have just added a simple solder jumper for this out of the way of the socket.

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A jumper for the RTC might actually be beneficial as well..

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Re: H5 REV C2 CHANGES & FIXES

Post by exxos »

Silk screen updated to show what the audio header has.

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Load resistor added to the 32Mhz which was causing clock issues for someone (forget who sorry).

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Added pull down resistors to solve audio issues when not using the MIDI synth board.

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AUX FLOPPY POWER connector had 1mm holes. I have upped them to 1.4mm as I couldn't get my floppy cables in the holes very easily.

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viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
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People should find solutions to problems, not find problems with solutions.
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Re: H5 REV C2 CHANGES & FIXES

Post by exxos »

Fixed the hole sizes for the rear DC power jack. They was 0.8mm and too small for the intended connectors. So been increased to 1.2mm (legs measure 1mm).

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https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.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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