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Note that pod E2 used for the ROM data shows no activity on bits 4 and 6. Apparently the test clips for those signals didn't stay on the ROM pins when I put the board into the PACER, so I'll have to redo it.
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Photographer: David Zeck
Pretzel Logic, a Toronto-based band specializing in the music of Steely Dan, played at the Streetsville Bread and Honey Festival on June 1, 2013 - Guitarist Tim Johns
The main logic PCB of the terminal. The control microprocessor (HD64180) is in the middle of the top row of ICs. To the left the large ICs are 64K bytes of RAM and 256K bytes of firmeware ROM. The large IC to the right of the processor is the 73K222 modem IC.
To the right of the modem IC is the circuitry to connect it to the telephone line.
The PQFP IC in the centre of the PCB is the MSM6265 LCD interface. To the left is the character generator ROM, below that is another 64K of RAM partly used as the video memory.
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(ends at midnight december 1st, 08)