LOCATION COMPONENT FUNCTION/DESCRIPTION
D8 DS1 Illuminates when fuse F1 is open and when there is a short circuit failure, or when the
power MOSFETs try to conduct supply voltage when the amplifier is switched ON.
B8 DS2 Illuminates when fuse F2 is open and when there is a short circuit failure, or when the
power MOSFETs try to conduct supply voltage when the amplifier is switched ON.
C7 DS3 Indicator LED, Illuminates when module receives “ON” command for Modulation En-
coder.
D3 F1 Protects power supply and printed circuit board against damage from short-circuit cur-
rents.
Table C-1. RF Amplifier Module Boards
Controls and Indicators
Section C - RF Amplifier Modules
888-2297-002 C-7
WARNING: Disconnect primary power prior to servicing.
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