08-02-2001, 11:31 AM
I have two 82104A Card Reader, and one of them insists on locking the 41´s keyboard as it shows CRD ERR message evrytime it is plugged in. I have to remove batteries to unplug the card reader, cause the calculator will not turn off by pressing ON key. I have xchanged the internal boards with eachother, and one of the mainboards keeps failure operation.
Any tip? Switches? Sensors? Connectors?
Thanks in advance.