Maintenance
Module 8023 6-1
MAINTENANCE
CONTENTS
Cautionary and General Advice ............................................................................................2
Display Board Replacement .................................................................................................3
Keyboard Overlay Replacement ..........................................................................................4
Control & PSU Board Replacement .....................................................................................7
Filter Resistor Pack ...............................................................................................................8
Hardware Cold Starting .........................................................................................................8
Control Board Links and Test Points ..................................................................................9
Power Supply .......................................................................................................................10
Connecting to a Power Source ..........................................................................................12
End Plate Removal and Refitting .......................................................................................14
Search Head Board Single Frequency ..............................................................................16
Receiver Interface Board Single Frequency .....................................................................20
Dual Frequency Detectors ..................................................................................................21