Gestetner G060 Service Manual page 513

SC No. Item
SC 672 Controller-to-
operation panel
(CF)
communication
error at startup
SC 680 BCU/ MUSIC
communication
error
SM
Definition
• After the machine is • Controller stalled
• Controller board
powered on, the
communication between
• Controller board
the controller and the
operation panel is not
• Operation panel
established, or
communication with
controller is interrupted
after a normal startup.
• After startup reset of the
operation panel, the
attention code or the
attention acknowledge
code is not sent from the
controller.
• After the controller issues
a command to check the
communication line with
the controller at 30-
second intervals, the
controller fails to respond
twice.
• Toner cartridge
After the engine CPU sends
a message, the Music CPU
does not respond within five
• Memory chip problem
seconds three consecutive
• Memory chip cable
times.
Related
Possible Cause
SCs
installed incorrectly
defective
connector loose or
defective
memory chip loose
connection
wiring problem
4-31
Troubleshooting Procedure
1. Turn the main switch off and on.
2. Check the condition of the controller
board.
3. Check the condition of the operation
panel.
4. Replace the controller board.
5. Replace the operation panel.
1. Turn the main switch off and on.
2. Check if the toner cartridge is
installed correctly.
3. Replace the toner cartridge.
4. Check if the harnesses are not
damaged.
5. Replace the BCU.
SC TABLE
Type
B
B
G570