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Which Jumper To Connect Clock Battery.

Problems with your machine in general.
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MacTech05
Posts: 69
Joined: Thu Jul 07, 2022 1:21 am
Location: USA

Which Jumper To Connect Clock Battery.

Post by MacTech05 »

When I received my TT030 last month, I discovered it does not have a clock battery installed. The velcro strip to mount it to is still stuck to the inside of the case. I want install a battery, but I am not certain which jumper the battery wire will plug into.

Could someone point me in the right direction? Is it J400?

Thank you.

Randy
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stephen_usher
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Re: Which Jumper To Connect Clock Battery.

Post by stephen_usher »

Yes, it's J400. I've forgotten whether the key is on the ground or positive side though. I think it's the same as old PC motherboards.
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
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DoG
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Re: Which Jumper To Connect Clock Battery.

Post by DoG »

1 = +
2 = not connected
3 = ground
4 = ground

Battery connector J400 Atari TT.png
Battery connector J400 Atari TT.png (16.31 KiB) Viewed 770 times
MacTech05
Posts: 69
Joined: Thu Jul 07, 2022 1:21 am
Location: USA

Re: Which Jumper To Connect Clock Battery.

Post by MacTech05 »

I thought it was J400. I appreciate you guys confirming it.

Thank you !

Randy
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