Harris Atlas DVL400 Technical Manual page 165

Atlas series dvb-t uhf transmitter
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ATLAS Series™
Table 6-2 Atlas PA Module Fault List
TYPE
Description
M# +12V Fail
Module #1-8
+12Vdc Regulator
M# -12V Fail
Module #1-8
-12Vdc Regulator
M# 7V Fail
Module #1-8
Loss of +7.5Vdc
M# 5V Fail
Module #1-8
+5Vdc Regulator
M# Short
Pass FET switch
M1-8 Pallet1-8
Module #1-8
OC
Pallet #1-8 Over-
M# P&G Drv
Module #1-8
OC
Phase and Gain
Driver Over-Current
M# PreDrv OC
Module #1-8
Over-Current
M# Drv1 OC
Module #1-8
Driver #1 Over-
M# Drv2 OC
Module #1-8
Driver #2 Over-
M# SW Passfet
Module #1-8
DC Switch Failure
M# 32V High
Module #1-8
PA Power Supply
Voltage too high
M# 32V Low
Module #1-8
PA Power Supply
Voltage too Low
M# VSWR
Module #1-8
Reflected power
2/25/03
WARNING: Disconnect primary power prior to servicing.
Fault Level or Threshold
+/-20% Normal DAC reading =
Failed
+/-20% Normal DAC reading =
Failed
+/-20% Normal DAC reading =
from LVPS
+/-20% Normal DAC reading =
Failed
Module #1-
Voltage present at pallets with
short
Amplifier Pallet has exceeded
Current
Output Driver on Phase and Gain
Board has exceeded 10A
Pre-Driver Current has exceeded
Pre-Driver
Driver Current has exceeded 10A
Current
Driver current has exceeded 10A
Current
Loss of power supply voltage to
Power Supply voltage to the
module has exceeded 34Vdc
Power Supply voltage to the
module is less than 25Vdc
Module reflected power has
overload
750
748
670
744
module shut off
10A
5A
pallets
exceeded 100W
888-2473-001
Section 6 Diagnostics
Transmitter
Three
Action
Strik
e
WARNING
NO
WARNING
NO
WARNING
NO
WARNING
NO
WARNING
NO
MODULE OFF
YES
MODULE OFF
YES
MODULE OFF
YES
MODULE OFF
YES
MODULE OFF
YES
MODULE OFF
YES
MODULE OFF
YES
MODULE OFF
YES
MODULE OFF
YES
6-7

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