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I know Bitsavers.org has part one of the service manual for the 810, but part 2 of the service manual that has the troubleshooting and schematics is missing. There is a complete service manual for an 820, however it's completely different from the 810. I'm restoring my 810 I have had in...

I am looking for the service manual for any of the early Interdata systems. I have an Interdata Model 1 that I would like to restore. It uses 10-inch boards that were common in other early Interdata systems, like the Model 3. I have a user's manual for the Model 1 which has the instruction...

I have a Tek 4052, or at least most of one, I'm missing the tape drive and some of the case parts. I received it mostly as parts. I'm trying to bring it back to life. I currently have it set up in a diagnostic configuration, spread out on a table so I can get to the board test points. I...

I have had this system in storage for about 33 years now, so I thought I would pull it out and get it working. After replacing a capacitor on the memory board and cleaning contacts on the tape drive I was able to get it powered up. I had to figure out the pin connections and baud rate on the...

I have a couple Interdata Model One systems I have been trying to bring alive. I have a couple stuck bits to resolve, but work is slow having to debug without a schematic. I have documentation on the instruction set and a user guide, but no service manual. Hopefully someone in the group...