I was Browsing Ebay I came across This Data I/O 29B Chip Programmer It was Missing the Unipack
Seller had it’s condition listed as “used and tested/works” I did not need 3 Of these so I offered what I thought was reasonable for one of these programmers in a power on condition missing the programming pack.
This is What Arrived.. Unboxing Video… 12/31/2024
Insomnia Diagnostics… 1/01/2025 Jump Start it!!
Testing with Known Good Roms.
This unit should be repairable.
Connector on the Back is the Handler (Option) Schematic.
I looke and could not find any photos of the Handler Board 410-1984A on the net.. So Here is it Installed. I Labeled the rom’s that came with this unit.
Photos of Top and Bottom 410-1984A Handler Board.
Data I/O 29B Main Board with Handler Option Board Removed.
Filter Board (Power Supply Schematic)
Data I/O 29B Service Manual and Schematics
Last Updated on January 12, 2025 by Steven Rhine