Motorola MTR2000 T5544 Instruction / Field Service Manual page 166

Voltage Regulator/Filter Circuitry
68P81096E22-C
09/30/05
The voltage regulator circuitry consists of a +5V regulator and filtering cir-
cuitry. The +5V regulator accepts a +8V input (from a regulator on the
backplane) and generates a +5V operating voltage for the exciter board cir-
cuitry.
In addition to the voltage regulator circuitry, +15V from the Station Con-
trol Module is filtered for the synthesizer charge pump. Also, +10V (from
a regulator on the backplane) is filtered to supply a +10V operating volt-
age for the exciter board circuitry.
VHF Exciter Module
5