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TerribleFire's H4 Build

Topic for users to share their building progress.
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terriblefire
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Re: TerribleFire's H4 Build

Post by terriblefire »

exxos wrote: Sun May 17, 2020 10:45 pm He did it deliberately to annoy people :)
Well its more that i dont care. :)
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Re: TerribleFire's H4 Build

Post by exxos »

terriblefire wrote: Sun May 17, 2020 11:29 pm Well its more that i dont care. :)
Well at least I have a terriblefire certified ground plane that's all that matters.
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Re: TerribleFire's H4 Build

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exxos wrote: Mon May 18, 2020 12:10 am Well at least I have a terriblefire certified ground plane that's all that matters.
Its all good...

I'm going to socket the 6850 chips and the MFP .. Has anyone got an opinion on this.
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Re: TerribleFire's H4 Build

Post by exxos »

terriblefire wrote: Mon May 18, 2020 12:10 pm I'm going to socket the 6850 chips and the MFP .. Has anyone got an opinion on this.
If the chips are tested and known working to start with, I probably wouldn't bother with the sockets... If your using un-tested crap from China, then sockets are a must.
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Re: TerribleFire's H4 Build

Post by terriblefire »

exxos wrote: Mon May 18, 2020 12:13 pm
terriblefire wrote: Mon May 18, 2020 12:10 pm I'm going to socket the 6850 chips and the MFP .. Has anyone got an opinion on this.
If the chips are tested and known working to start with, I probably wouldn't bother with the sockets... If your using un-tested crap from China, then sockets are a must.
They are pulls from that board... and i dont trust i didnt break them.
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indicates how much hurting you shall receive."
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Re: TerribleFire's H4 Build

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terriblefire wrote: Mon May 18, 2020 12:21 pm They are pulls from that board... and i dont trust i didnt break them.
Sockets it is then.
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Re: TerribleFire's H4 Build

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Another couple of hours of soldering and we have ...
IMG_2403.jpg
IMG_2403.jpg (378.49 KiB) Viewed 6038 times
Now if someone hadnt missed the 44 pin PLCC sockets off the BOM i'd be trying to boot it about now :P :lol:
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Re: TerribleFire's H4 Build

Post by DoG »

Don't forget the bridge/jumper in the bottom 68k footprint that says "flashy clock" and a small bridge between two pins in the RTC footprint to deactivate it.
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Re: TerribleFire's H4 Build

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DoG wrote: Mon May 18, 2020 10:46 pm Don't forget the bridge/jumper in the bottom 68k footprint that says "flashy clock" and a small bridge between two pins in the RTC footprint to deactivate it.
Yeah JP14 is missing in the BOM.

The RTC I will add before i boot. TBH though i dont really care so long as I get an Atari Logo.
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Re: TerribleFire's H4 Build

Post by exxos »

terriblefire wrote: Mon May 18, 2020 11:02 pm The RTC I will add before i boot. TBH though i dont really care so long as I get an Atari Logo.
TOS206 and up has the logo, you can only use up to TOS104 on the STFU without a decoder board.
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