Diagnostic Cart

[Vic20-Ian]

http://cgi.ebay.co.uk/Diagnostic-Test-C ... 500wt_1182

no leads evident but cart looks in good condition and is buy it now or best offer.

[gungahlin]

... and is buy it now or best offer.

It originally started out as a normal listing but the seller obviously decided that the item may go too cheap. I should have put a bid in on it whilst it was an open auction.

[Diddl]

A Diagnostic cartridge without diagnostic plugs is for nothing.

You could run this software in a FE3 also.


A good diagnostic hardware would have connections on userport, IEC, joystick, keyboard connector.

And it would need some display or some LED to show problems even the display is death.

[gungahlin]

A good diagnostic hardware would have connections on userport, IEC, joystick, keyboard connector.

It just occurred to me that the Diagnostic harness for the C64 may have the correct pin outs that everyone has been scratching their head over for the VIC 20 version - especially the serial port component.

I bought my C64 Diagnostics cartridge and harness on eBay. The individual that makes them also has a website where he offers the DIAG-BLACK II cartridge/harness kit online.

http://homepage.ntlworld.com/michael.ca ... BLACK.html

Piccy of his harness (from his web page)
http://homepage.ntlworld.com/michael.ca ... CKLATE.JPG


Might be worth someone who has been playing with the VIC Diag cartridge (and already has most of their harness built) making contact with him and seeing if he is prepared to build/sell the serial port component separately... I paid about AUD 60.00 for my full setup, surely the serial port component would be a lot less... besides if it works everyone benefits!

[gklinger]

It just occurred to me that the Diagnostic harness for the C64 may have the correct pin outs that everyone has been scratching their head over for the VIC 20 version - especially the serial port component.

Yep. The VIC-20 and 64 used the same harness. The only difference was the diagnostic cartridge itself.

[channelmaniac]

It just occurred to me that the Diagnostic harness for the C64 may have the correct pin outs that everyone has been scratching their head over for the VIC 20 version - especially the serial port component.

Yep. The VIC-20 and 64 used the same harness. The only difference was the diagnostic cartridge itself.

The diagnostic loopbacks I have for the C64 do not work with the diag cart I have for the VIC-20.

[crock]

Sorry to resurrect such an old thread but I found one of these in one of my boxes.

http://www.inchocks.co.uk/c64/VIC20Diag.jpg

Like much of my stuff, this came from Commodore UK's plant in Corby in the summer of 86.

Does anyone have the correct set of dongles for this who could confirm the connections? I have the C64 diag dongles but from the pics, these are definitely different.

Rob

[RobertBe]

On Wednesday master C= technician Ray Carlsen tried out the VIC-20 Diagnostic cart with its specific harness. See pictures and read a short summary at

http://retro-link.blogspot.com/2012/04/blog-post.html

Last night in the Portland, Oregon area,
Robert Bernardo
Fresno Commodore User Group
http://videocam.net.au/fcug

[RobertBe]

Ray Carlsen has made more pictures (close-ups) available on the VIC-20 Diagnostic cart and its octopus harness. Go to

http://personalpages.tds.net/~rcarlsen/ ... 20%20cart/

Truly,
Robert Bernardo
Fresno Commodore User Group
http://videocam.net.au/fcug

[ken]

several months ago I finally got around to making a few of the vic-20 harnesses
I have not had the time yet to have a batch of cartridges made , but its a vary simple cart
so hopefully I will have time to finish it up and have a batch made

[dragos]

Did you ever make any of these?

I would like a set!

[ken]

I have about 10 assembled harnesses
what I do not have is a cartridge board
I have drawn up a board just have not had it made yet

[Kakemoms]

Interested. When you get the board (or I can make one if you have the wiring).

[mrr19121970]

Anyone willing to post their experiences with the 'octopus cable' from @Ken ?

[mrr19121970]

I guess not then?

Here is the latest pic