Parts How to determine the cause
USB cable LED on CTL blinks for 1 second
Operation panel LED on CTL blinks for 1 second
IPU Fuse 3 on the IPU
CTL LED on CTL does not blink
Memory LED on CTL does not blink
[A]: LEDs on the controller board
Check the condition (lit, off, blinking) of the LED on the CTL.
LED /POSTCODE AREA on the CTL
6. Troubleshooting
1070
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