What the heck is this on my Stargate board? Please help!!! :)

RobMcRaf

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What the heck is this on my Stargate board? Please help!!! :)

Noticed this little "daughter" board with wires attached on my Stargate PCB. One of the little yellow wires (the bottom one) is not attached. Does anyone know what this does?
 

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I forget what it does exactly, but seems to me it had something to do with scores/settings storage in cmos ram. Specific to early runs of Stargate hardware.
 
It fixes an issue with the CMOS memory protect circuit. The upper yellow wire connects to the lower side of the capacitor just to the left of the 7408 chip.

The lower wire (which is usually white) connects to the solder pad that the white wire is soldered to just to the left of where the yellow wire is soldered Between the 7408 chip and the 74LS133 chip).

I have no idea why the other end of the white wire is soldered where it is (bottom end in your picture by the 74LS139 chip).

ken

edit: you can see what they are supposed to look like in the hi-res picture on http://www.robotron-2084.co.uk/techwilliamshardwareid.html#stargate
 
Maybe why I can't save settings?

Maybe that is why I can't save settings. One of the wires is lifted. If I can figure out where to resolver it, I may be fixing a problem.
 
Can't tell from pic

Are both the yellow and white wires direct jumps, or is the white (the one that starts closest to the bottom) supposed to hit a solder point between the 5th and 6th chips (counting from the left), and 3 rows up?
 
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