开云体育

Hi Everyone,

I am in the process of reverse engineering 2 PCB:-

1, the 278x processor Serial IO PCB
2, an extension card
3, look at the s/w Bob has provided, can it be used under DOS. Lotus 123 and Lotus measure with 2 x GPIB control will be a challenge.

Bob Koller was generous enough and provide me on loan several PCB to reverse engineer.

I am starting another directory (2782 HW & SW service info) and this will contain all relevant data, schematics etc that I work through to resolve an issue with a 2782.

I would also like to reach out to anyone who may have any additional schematics or any information on the 2782/2784. I have a unit with late revision PCB, some schematics do not appear to match. For example the A29 PCB 100MHz) ref source PCB in my unit it is a 670-9461-07. The bottom side of the PCB has an alternative schematic (no ECL).


Regards
Gerald
VK3GM

Hi Gerald

I am repairing a Tektronix 2784. Therefore i'm searching for the Processor ExtenderBoard with the SerialPort or a Circuit Diagram for this.

I know it's a 85C30 Dual Serial Interface from Zilog and it uses &0100 to &010F to communicate.

Thank you for help. That's the first Time I'm using groups. I have some files with circuit diagrams, also Module Level Service Manual

Regards

Juergen