Harris DX 25U Technical Manual page 87

TYPE 1
EXT
AIR
DOOR
SUPPLY FAULT
OVER VOLTAGE
CABLE INTERLOCK
B+
B-
+5V
+15V
REPEATING TYPE 2 FAULT See NOTE below
TYPE 2
UNDER DRIVE
OVER DRIVE
OVER CURRENT *
* Transmitter will attempt to limit current first, then shut off high voltage if limiting is not sufficient.
NOTE: If Type 2 fault condition is still present when the transmitter cycles back on,or repeats within 2.4 seconds after the
transmitter cycles back on, it becomes a Type 1 fault and will require a manual restart.
TYPE 3
BANDPASS VSWR
ANT. VSWR
TEMPERATURE
TYPE 4
BANDPASS VSWR
ANT. VSWR
+15V
-15V
+5V
+15V
-15V
TYPE 5
CONVERSION ERROR
TYPE 6
RF AMP
Rev. R: 11-11-96
Table 6-1. DX 25U Fault Types
TURNS PA POWER SUPPLY OFF (Manual Restart Required)
External Interlock
Air Flow Fault
Door Interlock
PA Power Supply Protection
PA Power Supply Overvoltage Protection
Modulation and Driver Encoder Cables
DC Regulator B+ Regulated Fault
DC Regulator B- Regulator Fault
Output Monitor +5V on board Regulator Fault
Output Monitor +15V on board Regulator Fault
TURNS PA POWER SUPPLY OFF (Recycles Back ON)
RF Drive Level to PA LOW
RF Drive Level to PA HIGH
PA Power Supply +230 Vdc Overload
LOWER POWER OUTPUT
Output Monitor detects sucessive VSWR's
Output Monitor detects sucessive VSWR's
Driver Encoder/Temp Sensor detects an over temperature condition
PA TURN OFF ONLY (PA Kill only, High Voltage Remains ON)
Output Monitor detects one shot VSWR
Output Monitor detects one shot VSWR
A/D Converter on board +15V Regulator Fault
A/D Converter on board -15V Regulator Fault
A/D Converter on board +5V Regulator Fault
Analog Input on board +15V Regulator Fault
Analog Input on board -15V Regulator Fault
CLEAR MODULATOR DIGITAL AUDIO DATA
A/D Converter
FAULT DISPLAY ONLY
PA RF Amplifier Fuse Blown
888-2297-002
WARNING: Disconnect primary power prior to servicing.
Section VI - Troubleshooting
6-5