Emcee TUA100FA, Руководство пользователя

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3
6
2
3.3 Troubleshooting Chart:
The following chart is an aid to determining and correcting the causes of faults that may occur in this
amplifier. Under normal operating conditions, the FINAL ON indicator should be illuminated green
with the TEMP and AMPL 1 indicators unlit. If a problem develops, note the type of problem, the
state of the indicator LEDs and % POWER meter and compare them to this chart. Refer to the
Troubleshooting Chart in the TTU20F Transmitter or TU20F Translator manual as necessary.
TROUBLESHOOTING CHART
PROBLEM INDICATORS CAUSE SOLUTION
NO OUTPUT
POWER ALL LEDs UNLIT No 32V or 5V available Check plug connections
P9/P10 and 5V regulator
(U3) output on Indicator
Circuit board PC3.
Faulty module or 32V
Power Supply Shut off Xmtr/Xltr RF
drive. While monitoring
the 32V supply, remove
the dc plug from each
module and PC board in
the drawer and the wire
harness to the driver. If
the 32V returns when a
plug is removed, replace
the associated module. If
32V does not return with
all plugs removed,
replace power supply.
TEMP YELLOW
AMPL 1 GREEN
FINAL ON GREEN
% POWER 0
DRIVER STBY
High ambient temperature
inside drawer Ensure fans are opera-
tional and are not
blocked.
Faulty thermostat If amplifier A1 is cool,
measure resistance
across the thermostat.
Replace thermostat if a
short is present.
LOW OUTPUT
POWER OR
DISTORTED
OUTPUT AMPL 1 RED Faulty amplifier module Replace amplifier module.
NO fault indicated Output power calibration
is incorrect See Section 3.5 or 3.6.