User's Manual

Lucent Technologies — Proprietary
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401-660-100 Issue 11 August 2000
22-37
Linear Amplifier Circuit (LAC) Maintenance
Figure 22-12. Measuring the LAU Fan Voltage
INFO Alarm Procedure
Symptoms:
1. INFO alarms reported at the MSC
2. The INPUT DRIVE LED is ON
Probable Causes:
1. The LAC is being overdriven
2. A damaged UN166 AFI Board
Procedure:
POS.
NEG.
INDUCTOR