SECTION IV
Maintenance
4.1
Introduction
This section describes the performance tests, adjustments and troubleshooting
procedures for the power amplifier.
4.2
Performance Test
The performance test is identical to the operating procedure described in
Section III.
4.3
Adjustment Procedure
There are no operator adjustments applicable for the power amplifier.
4.4 Troubleshooting Procedure
NOTE!
Troubleshooting beyond the level described in this procedure must be
performed at an authorized service facility or the warranty may be voided.
The following troubleshooting procedure is to be used as a guide to help
ascertain whether the equipment is malfunctioning.
4.4.1 Improper
Power
Distribution
Whenever there appears to be improper power distributed throughout the
amplifier, perform the following steps:
a. Verify the ‘ON/OFF’ switch lamp is illuminated on the front panel.
b.
Verify that the internal fans are operating.
c.
If neither step A or B above appear to be working, verify the presence
of AC power at the source and also at rear panel connection.
4.4.2 Low or No RF Output Power
Whenever the RF output power of the amplifier and/or the current drawn
from the power supply is low, or the operating temperature has exceeded
80°C, the system may have triggered the thermal protection function.
Perform the following procedure:
a. Verify that the drive level is correct.
b. Check that the ‘TEMP. FAULT’ indicator is not illuminated.
If the above conditions are verified and there is still low or no RF output
power, then contact your nearest authorized Ophir RF Service Center.
4.5. CLEANING
Use a rag with isopropyl alcohol to clean exterior surfaces. Use a vacuum to
remove dust from the screens on the front and rear of the equipment.
OM_5100F 12/12/01
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