Gestetner A193 Service Manual page 510

SC CODE DESCRIPTIONS
SC990: Communication error between BICU and IOCSS board
(A193/A224)
-Definition- [B]
The BiCU board cannot communicate with the IOCSS board properly.
- Possible cause -
•
Poor connection between the BiCU board and the IOCSS board
•
BiCU board defective
•
IOCSS board defective
SC999: Program version error (A193/A224)
- Definition - [C]
Downloading the incorrect type of main software
- Possible cases -
•
Downloading the main software for the A224 machine to the A193
machine or the opposite case.
A224 13-76 SM