Closed Commodore Plus 4 Computer / MB

Status
Not open for further replies.

p_a_green29

Member
Rating - 100%
12   0   0
Joined
Feb 15, 2011
Posts
79
Country
UK
Region
Essex
All,

I have a working (bar most of the keyboard) commodore plus 4. From what I can work out hunting about my IO chip is probably fried.

Im after a very cheap plus 4. Id prefer working, if not one with a suspected SID/CPU fault. I dont need the PSU and this should make it cheap to post.

PM me with what you have have, paid via payal, delivered by the slowest cheapest method!
 
most KB issues with the +4 *usually* come from dirty keyboard pcb or the connector. What makes you think its the IO chip? Compare your non-working keys to the keyboard matrix and see if there is a pattern. If you have a chip fault it could be the 6529 or the TED - so you know if your joysticks are working? If yes, that rules out TED.

I have spare 6529's if you're proficient with a soldering iron (they're usually not socketed)

rob
 
Hi,

Thanks for your advice! I took apart the keyboard and cleaned it all off, and tested the connector.

Everything seems ok and I put it back together with little expectation.

But every single key works! Just a shame my 1551 drive responds but seems to not want to read any disks
 
Status
Not open for further replies.
Back
Top Bottom