Matrix U7xe Service Manual download pdf (Page 33)

CHAPTER 8: TROUBLESHOOTING

8.3 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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Matrix U7xe Service Manual Page 33