Tarkin
New Member
Hello all,
I've got two CBMs that have bad chips, at least according to the voltage on the Vcc pin.
First up: VIC20 - 6522.
There are two for the VIC, one for keyboard and one for cassette/user port.
Unfortunately for me, one of them is bad.
Second up: C128D (Full Metal Jacket + 5.25" internal floppy)
On this one, one or both of the 40 col and 80 col chips are bad.
I believe the chip #s are 8564 - 40 col VIC / 8568 - 80 col VDC.
Thank you,
Steve M.
I've got two CBMs that have bad chips, at least according to the voltage on the Vcc pin.
First up: VIC20 - 6522.
There are two for the VIC, one for keyboard and one for cassette/user port.
Unfortunately for me, one of them is bad.
Second up: C128D (Full Metal Jacket + 5.25" internal floppy)
On this one, one or both of the 40 col and 80 col chips are bad.
I believe the chip #s are 8564 - 40 col VIC / 8568 - 80 col VDC.
Thank you,
Steve M.