5–5
Troubleshooting
If one of the LED fault indicators is illuminated red, troubleshoot using the follow-
ing suggestions:
5.3 Fault Indicators
5.3.1 Antenna
Antenna mismatch.
❑
Effects from inclement weather conditions such as icing.
❑
Check for moisture in the feedline.
❑
Secure antenna connections.
5.3.2 RF Drive
Denotes lack of or insufficient drive level.
❑
Ensure proper drive level of 70–80 watts input power.
❑
Check RF input cable for secure connection.
5.3.3 PA Temp
Temperature has reached the internal preset limit for safe operation (75°C).
❑
Ambient temperature higher than 50°C; reduce temperature.
❑
Restricted air flow; remove any obstructions, clean dirty air filters by using
mild detergent and warm water.
❑
Antenna mismatch; check for icing, moisture on the feedline, and secure
antenna connections.
❑
Overcurrent; check PA DC fault indicator, if flashing monitor current for
proper levels (total and individual Power Amps).
❑
Faulty DC Output Board; replace (see Section 7, Service & Support).
❑
Faulty or non-functioning cooling fan; determine the cause for malfunction
in the following section.
5.3.3.1 Potential Causes for Non-functioning Cooling Fans
The PA2000 and the PS2000 have two cooling fans each. All fans are powered by
the same circuit of the PS2000. There are two potential causes for a non-function-
ing fan or fans:
1. If a single fan does not operate, the fan is faulty and must be replaced. (See
Section 7, Service & Support.)
2. If none of the fans operate, a blown circuit breaker, a short circuit in the
PS2000, or a damaged winding on the main transformer of the DC Output
Board (in the PS2000) is the cause. In this case, do one of the following:
