Crown FMX250 Manual do Utilizador descarregar pdf (Página 23)

3–4

FM4000 User’s Manual

3.2.1AC Input Power switch

The Transmitter Controller's AC power is controlled by a switch located on the

AC input filter. The AC input range is 100-250 VAC. The fuse type and size are 3AGC

at 1/2 amp slo-blo and there are 2 fuses. See illustration 3-4 for switch location.

3.2 Power Switches

Illustration 3–4 AC Input Power Switch

9.Verify that the following conditions are present as indicated by each PA2000’s

Digital Multimeter:

a. In Ref—Should read between 0.4 and 0.8 volts (0.5 nominal, dependent

upon power input level).

b. SWR—Should read 1.05 to 1.5.

c.ALC—Should read between 4.00 and 6.00 volts for 2.2 kW output (less

for lower output or danger conditions, i.e. high SWR).

d.Power Out—Should read 2.20 for 2.2 kW output.

e. PA Temp—Should read 35 to 50°C with ambient temperature of 25°C.

The remainder of this section describes the functions of the front and rear panel

indicators and switches of the Transmitter Controller.

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Crown FMX250 Manual do Utilizador Página 23