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3-3
Low Energy Power Distribution
Figure 3-4 shows the Low Energy Mode Power Dis-
tribution. As stated earlier, the Low Energy 9VS is the
source for the 5VS, 3.3V-ES and 3.3VS-1. The 5VS
and 3.3VS-1 supplies power to the IC7A00 the PTV
Control µPC.
The 3.3V-ES supplies power to the PTV Control cir-
cuit E2PROM, now located on the PCB-TERMINAL.
The 9VS supply also provides power for the Antenna
Relay in the RF Switch.