76
4.5 Operating faults (symptoms, causes and
remedies)
Fault
Cause
Remedy
The equipment does not start. •
Faulty or missing power
supply cable
•
Auxiliary power supply
incorrect (Led MAINS on
the front panel off)
•
Fault on the power supply
stage
•
Replace the power supply
cable and connect it to
the equipment
•
Contact the manufacturer
•
Contact the manufacturer
The equipment does not
reach the required power
•
Equipment in Stand By
mode
•
No jumper for interlock
•
PLL not engaged (ON AIR
warning light on the front
panel off)
•
Power supply fault
•
RF module fault
•
Fault on the power mea-
surement system
•
Put the equipment in RF
ON
•
Insert the jumper for the
interlock
•
Contact the manufacturer
•
Contact the manufacturer
•
Contact the manufacturer
•
Contact the manufacturer
The equipment transmits on a
different frequency from the
one set
•
PLL board failure
•
VCO board failure
•
Contact the manufacturer
•
Contact the manufacturer
Absence of modulation in
output and on display
•
Audio cable interruption
or missing
•
MPX board failure
•
Stereo Coder board failure
•
Modulation is off
•
Audio cable connection or
replacement
•
Contact the manufacturer
•
Contact the manufacturer
•
Reactivate modulation
using the relative menu
Output modulation absent,
but shown on the display
•
MPX board failure
•
Stereo Coder board failure
•
Contact the manufacturer
•
Contact the manufacturer
Output modulation does not
reach the desired value
•
Input audio level low
•
MPX board failure
•
Increase the source audio
level
•
Increase the sensitivity
of the ETG input and/or
contact the manufacturer
Stereophonic modulation
absence
•
Stereophonic carrier off
•
Audio cables interrupted
or missing
•
Stereo Coder board failure
•
Stereo Coder board mis-
sing
•
Turn the stereophonic car-
rier on from the relative
menu
•
Audio cable connection or
replacement
•
Contact the manufacturer
•
The equipment does
not feature the “Stereo
Coder” option, therefore
it cannot be used for ste-
reophonic transmission
One or more fans stopped
•
Fan failure
•
Fan power supply failure
•
Contact the manufacturer
•
Contact the manufacturer
Maintenance
Summary of Contents for ETG2500
Page 4: ......
Page 54: ...54 Main Men Profiles O Main Men Exciter monitor E Instructions for use...
Page 55: ...55 Main Men Status Alarms S Main Men Events History H Instructions for use...
Page 56: ...56 Main Men Password K Main Men Password K Password K Instructions for use...
Page 58: ...58 Main Men System Y Main Men System Y System settings X Instructions for use...
Page 59: ...59 Main Men System Y Comm settings U Main Men System Y Audio trim alrm J Instructions for use...
Page 60: ...60 Main Men System Y Clock power set C Main Men System Y SMS phone set P Instructions for use...
Page 61: ...61 Main Men System Y User warning F Main Men System Y En 0 31 alrm SMS V Instructions for use...
Page 63: ...63 Main Men Debug D Main Men Debug D GSM debug G Instructions for use...
Page 64: ...64 Main Men Debug D Uarts F Main Men Debug D Uarts F Uart 0 1 2 Instructions for use...
Page 67: ...67 CAB0324 0 CAB0324 0 CAB0324 0 Instructions for use...
Page 70: ...70 CN1 CN2 CN3 CN4 CN5 CN6 CN7 Maintenance CONCENTRATOR BOARD...
Page 71: ...71 n 2 n 1 n 3 n 4 n 5 n 6 n 7 Maintenance RF MODULES...
Page 72: ...72 Maintenance...
Page 74: ...74 n 2 n 1 n 3 SW1 SW2 Maintenance POWER SUPPLIES...
Page 78: ...78 Maintenance...
