broken c64 ?

benjamin5454 · Newbie Joined: 20 May 2012 Posts: 4

i recently got my old c64 back and then wired it up but to find out that it dosent work it just comes up with a blue screen with border no writing and when i put a cartridge it loads it but then no cursor comes up and i cant write anything.i would really like to get my commodore working again to show my kids what it was like and to play on my old games

hurminator · Posted: Tue May 22, 2012 2:57 pm Post subject:

Looks like it could be several things...

for old version:
http://personalpages.tds.net/~...c64-ic.txt

for new version C64C:
http://personalpages.tds.net/~...4cdiag.txt

benjamin5454 · Newbie Joined: 20 May 2012 Posts: 4

im pretty sure its the u1 but do you know how to solve it?

hurminator · Posted: Tue May 22, 2012 4:40 pm Post subject:

Ray Carlson can do repairs for you. You could contact him. Or, if you feel good about your soldering skills, you could. However, you will have to get a replacement chip from somewhere.

benjamin5454 · Newbie Joined: 20 May 2012 Posts: 4

what chip would it need

hurminator · Posted: Tue May 22, 2012 7:47 pm Post subject:

U1 = 906108-02 (6526) CIA

just look for CIA 6526 (if you have the old board)

e5frog · Posted: Tue May 22, 2012 8:35 pm Post subject:

Try swapping it with the other one and see if it helps, if you're lucky they're in sockets.

benjamin5454 · Newbie Joined: 20 May 2012 Posts: 4

is there any way of fixing it with out buying a chip and the cia chips are solderd in Crying or Very sad

e5frog · Posted: Wed May 23, 2012 6:57 pm Post subject:

Sell this one and get another one or maybe get another - swap motherboards and then sell the non working one

Ask someone to fix it for you.