Floppies_only
Veteran Member
Gang,
I've heard that the CIA chip (Complex Interface Adaptor) in the Commodore 64 is connected to the joystick ports (Control Port 1 and 2) and that it is susceptable to damage from static discharge. You shouldn't touch the pins of the control ports because doing so can send a shock through the CIA chip and damage it.
I knew this but it was hard to remember and when I unpacked my new C64 I did it anyway. It occurred to me that it might be possible to protect the C64 from this touching. Take an IBM PC serial mouse or a non-functional Commodore mouse or joystick. Cut the cord far enough from the connector so that you can attach the end of the cord to the backside of the C64 - the side that is closest to the monitor. Then spiral wrap electrical tape over the end of the cord. Electrical tape is designed to stick when it is streched over the item you are taping. Finally, tape the end of the cord to the backside of the C64.
This is not guaranteed to work. In fact, I don't know that it will work. But if it is hard to remember not to touch the control ports on your C64, this measure might protect your CIA chip from static discharge.
Sean
I've heard that the CIA chip (Complex Interface Adaptor) in the Commodore 64 is connected to the joystick ports (Control Port 1 and 2) and that it is susceptable to damage from static discharge. You shouldn't touch the pins of the control ports because doing so can send a shock through the CIA chip and damage it.
I knew this but it was hard to remember and when I unpacked my new C64 I did it anyway. It occurred to me that it might be possible to protect the C64 from this touching. Take an IBM PC serial mouse or a non-functional Commodore mouse or joystick. Cut the cord far enough from the connector so that you can attach the end of the cord to the backside of the C64 - the side that is closest to the monitor. Then spiral wrap electrical tape over the end of the cord. Electrical tape is designed to stick when it is streched over the item you are taping. Finally, tape the end of the cord to the backside of the C64.
This is not guaranteed to work. In fact, I don't know that it will work. But if it is hard to remember not to touch the control ports on your C64, this measure might protect your CIA chip from static discharge.
Sean