Just wondering if anyone here has the schematic for the 542C Keyboard?
Thanks
Looking for OSI 542C Keyboard Schematic
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- Posts: 375
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- Location: New Zealand
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Looking for OSI 542C Keyboard Schematic
2P (1mhz 32k) - 502 + 8k + CEGMON + garbage collector fix BASIC, D&N MEM-CM9 + 24k, 540 (mono) [SOLD]
4PMF (2mhz 24k) - 505, 540, 527, D13 + 5.25" + Gotek
Superboard RevD - CEGMON + 610 board 24k + D13
Spares - 3 x 527, 1 x 505, Backplane
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- Posts: 375
- Joined: Wed Mar 30, 2011 9:44 am
- Location: New Zealand
- Contact:
Re: Looking for OSI 542C Keyboard Schematic
Keyboard fixed...The problem was a dead pull up resistor on the C0 line.
Phil
Phil
2P (1mhz 32k) - 502 + 8k + CEGMON + garbage collector fix BASIC, D&N MEM-CM9 + 24k, 540 (mono) [SOLD]
4PMF (2mhz 24k) - 505, 540, 527, D13 + 5.25" + Gotek
Superboard RevD - CEGMON + 610 board 24k + D13
Spares - 3 x 527, 1 x 505, Backplane