HP 82161A Digital Cassette Drive Repair

[Garth Wilson]

I thought the service manual was in the Museum DVDs, but I'm not finding it there. [Edit: It is available at http://www.hpmuseum.net/document.php?hwfile=2835 .] It sounds like all you need to know though is that the battery pack's positive terminal is the one toward the back of the unit; so if the previous owner had installed something like a DC-10 jack instead, the wire going to its pin goes to the rear terminal. I've used clip leads to a 5V power supply to run mine after the original batteries were no good. I wished the unit had been made to optionally use alkaline batteries.