Rev. 1.0
FMX30/FMX100/FMX250 User’s Manual
3—4
3.2.2
DC Breaker
The DC breaker, on the rear panel, must be on (up) for transmitter operation, even
when using AC power. Electrically, the DC breaker is located immediately after
diodes which isolate the DC and AC power supplies.
All functions except switching AC power and the carrier are controlled through the
Control Knob and Main Display. To make a selection, turn the knob to scroll
through a list of choices. When the cursor arrow points to the selected function,
push and release the control knob to make the selection.
To enter a number or letter, use the control knob to move a flashing cursor block
over characters in the selected line. When the cursor is in position, push and release
the control knob. Then, turn the knob to scroll through the letter or number
choices. Push and release the knob to select the choice.
3.3.1
Passwords
Settings and Factory functions require passwords to access. Only the password for
Settings is distributed. The default setting for the Settings password is “0000”. You
may change the Settings password from the Settings functions.
3.3.2
Main Function List
Main Function list in FMX are grouped as follows
• Readings
• Settings
• Factory
• Audio Monitor
• Fault Log
Illustration 3–2 DC Breaker
OFF
SCA IN
CO MPO SI TE IN
MO NITOR
R
L
2
3
REMO TE I/O
RIG HT
LEFT/MONO
B
A
T
T
E
R
Y
36 VD C
+
–
CIRCUI T
BREAKER
1
DC Breaker
