Ithaca Intersystems DPS-1
Functional front panel and z80 board. Pictured running the port FF test program testing input and output to port 0xFF. Note the corresponding programmed output LEDs to the Address-Programmed Input
Serial No. MFD-1107
See the clear vinyl bubbled up? I'm not sure if that was part of the shipping that you peel off, or a protective layer meant to be a permanent part of the system. Needs attention RSN.
I have a Intersystems Model 950 set of disk drives working too. I've got a bit of RTFM to do first before trying to boot any media I may have.
I removed all the boards and the front panel (FP) board before testing the power supply. It was rock solid.
Contents
Operating
DPS-1 boot video
Check out this YouTube video of the DPS-1 booting from eight inch double sided double density Shugart floppy disk drives.
Images
Boards
MPU-80 IA-2000 Rev B
IA-2030 64K Dynamic Ram Rev B
FDC 2 IA-2020 Rev C
IA-30 6 SIO Rev 0
Detail of key lock (in case I rekey)
The chassis has threaded attached standoffs. Quite a lot easier to reassemble this FP than the Imsai FPs. Rock solid power supply voltage tested with my EEVBlog meter.
Lot's of options on this FP
Resources
Manuals
I found these manuals here at https://amaus.net/static/S100/intersystems/
- Ithaca Intersystems Z80 CPU Manual 1977
- Ithaca Intersystems Hard Disk Adaptor
- Ithaca Intersystems Front Panel
- Ithaca Intersystems FDC-2 Disk Controller Manual
- Ithaca Intersystems FDC-2 Bootstrap
- Ithaca Intersystems 64K DRAM Rev 0 Manual 1980
- Ithaca Intersystems Series II MPU-80
Found at the Internet Archives
- Ithaca Standard BIOS Helpful information for boot.
