Mike's PCjr Page

Do you have specs on that AC adapter?

Does anyone have a diagram or part markings I can reference?
My ram sidecars came with nothing.

there are two basic issues that i've seen so far with the 128k sidecar: 1) a failed dram. the basic unit has these soldered in so it's hard to diagnose this without being able to test the ICs. the easiest thing to do is perform the 512k upgrade as a starting point to rule out an issue with the DRAM...

To start off. Anybody got any insights into the Tecmar jr Captain? I know it's shoddy, but if I can get some technical spec on it, maybe I can get something usable out of it. Also I have a dead 128k ram sidecar. I've already re-flowed the solder points to no avail and checked the bodge-wires for con...

A thread for troubleshooting and repairing dead and dying expansion sidecars.

Need help?

Got advice?

Got schematics?

Post here!

found a disk with a program called Bit-Chat 1.0 By Incomm Data Systems in my trunk.
Seems to have an xmodem protocol but i can't seem to get it to work.

Can't find any documentation for it anywhere.

Anybody run across this before? Any Insights?

I'll try to go step by step. Attempting to copy Clock.exe 6.87k (ds1216e clock files) fresh boot pcjr Load DOS 3.10 Mode com1:1200,n,8,1 {ENTER} on Toughbook Connect teraterm via serial but do not ctty Teraterm reports com1 connected, no display On pcjr: copy com1: clock.exe (Wait to press enter) On...

Okay, it worked once then not at all.
Not sure what I'm doing wrong.
Is there a file size limit?

GOT IT!

Thanks much!

Does this copy it to the disk (A:) or do I still need to setup a ram disk and the copy it from there?

And yes, I am trying to to basic file copy. My bridge machine, an IBM PS/2 286 is still on the blink and i can't get the external 5.25" floppy drive to work.