CCC Interface

[19bob59]

I’m new to the forum (and to JB repairs) so forgive me if this has been discussed previously. I searched and didn’t find what I need.
Is there a way to interface a computer with the CCC 4-07773-05 for troubleshooting and possible code modification?
Thanks for any assistance.

[darrenf]

Hi, 19bob59.

I'm not aware of any current/common way to easily interface a Rowe R-89 thru R-94 CCC (e.g. 4-07773-xx) to a computer.

In order to get the "code" (assuming you're talking about the code that the 6502 CPU executes) off of your CCC, you'll need an EPROM programmer (or device with similar functionality). I used my EPROM programmer to copy the code off of the EPROM in my R-89, and I've been examining it for the past year or so.  If you do, please share a copy with me.  I've been collecting EPROM images for this era of CCC (I think I'm up to 10 unique images so far).

You might be interested in my project to understand and comment the CCC code. It is available here: github.com/DarrenF-1/Rowe_CCC_Commented_Disassembly

If you dig into it, you'll see (as I did) that the CCC code does appear to have been written to do some jukebox system testing (i.e. a factory test mode) when connected to a device via serial that communicates in a certain way. I expect I'll be hooking up a terminal emulator to my CCC to try receiving wallbox serial data in the comming weeks or months.