27
ERROR 0x04A0 (DIGITAL COMMUNICATION FAILURE)
SYMPTOM: Error code 0x04A0 is displayed on the console.
CHECK POINT POSSIBLE ISSUE SOLUTION
LEDs 2, 3, 4, 6, 7 should be ON. If they are OFF, the LCB is damaged. Replace the LCB.
if LED1 is OFF. No AC power cord plugged in. Normal for an non-powered unit.
if LED 8 is OFF. Bad communication between UCB and LCB. Reconnect the console cable at the LCB and
UCB and check for kinks.
SOLUTION IF LEDS ARE NORMAL:
1) If the LEDs are lit normally, replace the UCB and console cable.
2) if the issue is still present after the UCB and console cable are replaced, replace the LCB.
LED 1
LED 8
8.5 TROUBLESHOOTING - ERROR 0x04A0
CHAPTER 8: TROUBLESHOOTING