OM6636-B-00
12 February 2015
ii
4.3.
CORRECTIVE MAINTENANCE ...................................................................................................... 4-1
4.3.1.
Preliminary Checks .............................................................................................................................4-1
4.3.2.
Temperature Control ...........................................................................................................................4-2
4.3.3.
Over Temperature ...............................................................................................................................4-4
5.
PRINCIPLES OF OPERATION ............................................................................ 5-1
5.1.
INTRODUCTION ................................................................................................................................ 5-1
5.2.
TEMPERATURE SENSITIVE OSCILLATOR ................................................................................ 5-2
5.3.
AMPLIFIER AND DETECTOR......................................................................................................... 5-2
5.4.
HEATER DRIVER ............................................................................................................................... 5-3
5.5.
OVERTEMPERATURE CIRCUIT .................................................................................................... 5-3
5.6.
POWER SUPPLY ................................................................................................................................. 5-4
