Original
7b.5
May 01
KH 2020
Chap 7b
CD-3744
PRE-REQUISITES
1. MAINS ISOLATOR ON
2. DISPLAY POWER ON
3. Tx TIMER ELAPSED
4. INSTALLATION DEFAULTS
CORRECTLY SET
5. SET TO RUN
NO
YES
NO
NO
NO
YES
YES
NO
FAILURE MESSAGE
"SYNC/VIDEO
MISSING"
ON DISPLAY
SUSPECT
DISPLAY
PCBs
TRANSCEIVER
FAULT
IS THERE
POWER TO THE
ANTENNA TERMINALS
PCB & MOTOR
TERMINAL
PCB?
NO
YES
RECONNECT
CABLE
CABLING
FAULT
SUSPECT
DISPLAY/40V
PSU FAULT
CHECK THAT
SAFETY SWITCH
IS ON
IS THE
COAXIAL PLUG
CONNECTED ON THE
TERMINALS
PCB?
IS THE
TRANSCEIVER
OPERATIVE?
IS THERE
POWER TO THE
TRANSCEIVER & 40V
POWER SUPPLY FROM
THE DISPLAY?
YES
NO
RECONNECT
ARE THE
RECEIVER/
MODULATOR
CONNECTIONS
PLUGGED
IN?
YES
NO
TERMINALS
PCB
VIDEO/
NOISE
AT TP3 ON
TERMINALS
PCB?
YES
IS THE
ANTENNA
ROTATING?
Figure 5b - Transceiver Fault Diagnosis (No Sync/No Video)
Summary of Contents for Kelvin Hughes Nucleus 3 5000 Series
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