68kMLA Classic Interface
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| Purpose of purposefully omitted component on IIsi board? | |
| Posted by: jessenator on 2019-03-06 19:11:07 Anyone know what this (oscillator?) does-- located at 1B-1C marked Y2 rated/printed 32.768KHz on the IIsi motherboard? in the top (of this image) at the corner of the ROM SIMM and RAM bank? I'm assuming it's not integral, but I'm curious.  | |
| Posted by: cruff on 2019-03-07 18:24:19 Looks like it could be an alternate form factor if Y1 isn't available, Y2 would be populated? | |
| Posted by: jessenator on 2019-03-07 18:29:06 Hmm. Y1 looks like a capacitor. Is it? | |
| Posted by: AwkwardPotato on 2019-03-07 19:13:49 Capacitors have reference designators starting with C, and crystals have reference designators starting with Y. | |
| Posted by: jessenator on 2019-03-07 19:40:39 Good to know. Thanks! | |
Posted by: Bolle on 2019-03-08 13:42:18Looks like it could be an alternate form factor if Y1 isn't available, Y2 would be populated? This. That crystal is used as a timing source for the RTC. SE/30 boards have those two alternate pads for the sound chip crystal. I have one that had a bad oscillator and replaced it with a SMD part on the normally unused pads instead of the through hole component that’s on there from the factory. | |
| Posted by: jessenator on 2019-03-08 13:48:13 Thanks! | |
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