Desperado
Veteran Member
- Joined
- Nov 25, 2017
- Messages
- 6,827
Yes...i changed first 6520 and nothing changes....after i tryied changing 6522 and cassette load programStrange?
But if it works...
Dave
Maybe now can works also dual drive???
Yes...i changed first 6520 and nothing changes....after i tryied changing 6522 and cassette load programStrange?
But if it works...
Dave
Dave i connected cassette player on the rear!
8032 Pet!Remind me, what type of Commodore PET is it again?
Dave
Not but if i change 6522, cassette player load a program....with this 6522 not...so i think that chip is bad...Before you give up - have you tested the IEEE 488 port or not?
I connected Cass player on J3If you look here: http://www.6502.org/users/andre/petindex/boards.html you will see that tape #1 and tape #2 keep moving around ! Hence the reason I was asking...
Yes i saw this!The book I pointed you to (page 181) has a "GPIB Diagnostic Test" program and a section is entitled "THE SYSTEM DOESN'T WORK - NOW WHAT?.