User's Manual

KH1264
Chap ter 6
Is sue 2 Page 6.9/10
RADAR FAULT
DETECTED AT DISPLAY
(AT STANDBY)
IS Tx READY
IND PRESENT?
SWITCH TO RUN
ON PSU SENSE PCB
ARE D2, D3 & D4 LIT?
ON CAN
ADAPTER PCB,
IS D13 FLASHING?
(PROC RUNNING
LED)
POWER SUPPLY FAULT
IS THE
ANTENNA TURNING?
FAULT IN
AZ ENCODER GTX-A188
OR CONNECTIONS THROUGH
SHARPEYE AZ
CONVERTER PCB DTX-A151
FAILURE MESSAGE
CHECK CONNECTIONS,
MAINS INPUT &
POWER SUPPLY
REPAIR CONNECTIONS
IF NECESSARY.
OTHERWISE POWER SUPPLY
OR EMC FILTER FAULT
ON CAN
ADAPTER PCB
ARE D11, D12, D16
& D38 LIT?
IS MAINS
INDICATOR ON
DRIVE CONTROL
UNIT LIT?
CHECK MAINS SUPPLY
IS MOTOR
ON LED LIT?
FAULT WITH
TRANSCEIVER DTX-A115
FAULTY WIRING TO
ANTENNA MOTOR OR
MOTOR FAULT
FAILURE MESSAGE
- NO AZIMUTH
- NO HEADING LINE
IS KEYSWITCH
SET TO ON?
SET SWITCH TO ON
IS +27V PRESENT
AT PLA, PIN 1 ON DRIVE
INTERFACE PCB?
FAULT WITH
TRANSCEIVER DTX-A115
OR CONNECTION FAULT
CD-7620
ISSUE 1
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
NO
YES
YES
NO NO
YES
IS PLA PIN 2
LESS THAN 1V DC?
YES
NO
FAULT WITH INVERTER
(IN DRIVE CONTROL UNIT)
DOES
INVERTER DISPLAY
SHOW AN OUTPUT OF
50 OR 25?
YES
NO
FAULTY WIRING TO
ANTENNA MOTOR OR
MOTOR FAULT
FAULT ON
CAN ADAPTER PCB NNR-A981
FAULT ON
TRANCEIVER DTX-A115
- Rx SENSITIVITY LOW
- RF POWER LOW
- PLO LOCK
- SYNTH LOCK
- OVERTEMPERATURE
FAULT WITH
TRANSCEIVER DTX-A115
FAILURE MESSAGE
- ANTENNA VSWR HIGH
FAULT WITH
ANTENNA or ROTATING JOINT
FAILURE MESSAGE
- NO SYNC
- NO VIDEO
ARE COAXES OK?
NO
YES
REPAIR COAXES
FAULT WITH
TRANSCEIVER DTX-A115
Figure 2 Transceiver: Fault Diagnosis Figure 2