Panasonic UF-890 Service Manual page 123

4.3.4 Information Code: 416
Is communication with the
reference unit successful?
Change Function Parameter #011:
Reduce Rx Sensitivity Level
No
Does the problem still occur?
Change Function Parameter #023:
Increase Training Check Period
No
Does the problem still occur?
Change Function Parameter #013:
Increase G3 Rx Equalization
No
Does the problem still occur?
START
No
Yes
Yes
Yes
Yes
END
1. Replace the LCU PCB.
2. Replace the FCB PCB.
Does the problem still occur?
Yes
Check the telephone line condition.
Refer to Sect. 4.6.
123
No
END