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CHAPTER 8: TROUBLESHOOTING
8.4 TROUBLESHOOTING - ERROR 04A0 / 0440
FIGURE A FIGURE B
ERROR CODE 04A0 / 0440
1) SYMPTOM:
04A0 – UCB communication disconnected.
0440 – Timeout receive packet (LCB can not receive any data for 50 seconds).
2) SOLUTION:
If the display is giving a 04A0 error, check the LCB LED10 status.
- LED10 blinking: Turn off power and after 3 seconds, turn on power again. If console also show the 04A0, re-install UCB software again. If
this does not resolve the issue, replace the UCB.
- LED10 off: Check the connection of the digital communication wire at the UCB and LCB (Figures A & B). If the connection is good,
replace the digital communication wire.
- If replacing the UCB and digital communication wire does not work, replace the LCB.
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