Do the following.
- Turn the machine power OFF/ON.
- Do the action in the flowchart below to determine the cause and best course of action when SC672 occurs.
- If the SC recurs after you do the action in this flowchart, do the following.
- If SC819 (cache error) appears in the SC history, replace the controller board.
- If SC991 (SCS: scs time count level c’) appears in the SC history, replace the controller board and USB cable.
Flowchart to determine parts to replace when SC672 occurs
Parts | How to determine the cause |
|---|---|
USB cable | LED on CTL blinks once every second |
Operation panel | LED on CTL blinks once every second |
CTL | LEDs on CTL blink constantly |
Memory | LEDs on CTL blink constantly |
Flowchart to determine parts to replace when no display on operation panel
Parts | How to determine the cause |
|---|---|
USB cable | LED on CTL blinks once every second |
Operation panel | LED on CTL blinks once every second |
IPU | Fuse 3 on the IPU |
CTL | LED on CTL does not blink |
Memory | LED on CTL does not blink |