- Joined: 10 Dec 2009
- Posts: 115
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SG-1000 Mark II - 2KB RAM MOD
 Posted: Tue Apr 16, 2024 1:12 pm
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Some SG-1000 IIs have a 2KB RAM chip on the motherboard instead of the usual 1KB chip.
The 2KB chip is a Toshiba TMM2116AP-15 but it is configured to use only the first 1024 bytes (1KB).
By cutting a track and making a jumper, you can enable all RAM (2KB).
Enjoy.
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- Joined: 05 Sep 2013
- Posts: 3831
- Location: Stockholm, Sweden
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Posted: Tue Apr 16, 2024 3:51 pm
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Or you could lift that pin so that you don't cut the trace, which is less drastic...
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- Joined: 10 Dec 2009
- Posts: 115
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Posted: Wed Apr 17, 2024 6:22 am
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sverx wrote Or you could lift that pin so that you don't cut the trace, which is less drastic...
You are right if you have already desoldered the chip.
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