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WysePC 286 WY-2200-01: the saga

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Reply 20 of 21, by Tiido

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J19 is probably backup battery connector, but one will have to make sure it actually is the case i.e seeing if traces run to the settings SRAM (socketed chip above keyboard controller).

T-04YBSC, a new YMF71x based sound card & Official VOGONS thread about it
Newly made 4MB 60ns 30pin SIMMs ~
mida sa loed ? nagunii aru ei saa 😜

Reply 21 of 21, by stamasd

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Tiido wrote:

J19 is probably backup battery connector, but one will have to make sure it actually is the case i.e seeing if traces run to the settings SRAM (socketed chip above keyboard controller).

That's not the keyboard controller, it's a 80287. The KBC is midway between the CPU and the EPROMs. Strange locations, I know.
And yes, J19 is probably the battery connector. I didn't have time to play with it yet.

I/O, I/O,
It's off to disk I go,
With a bit and a byte
And a read and a write,
I/O, I/O

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