Input Status Display; T12 Power Supply Mode Setting - Fostex FM-4 Owner's Manual

Input status display

On the input status display, not only you can see the
current status of the following switches, but also you
can disable or enable the T12 power supply function .
The following shows the default setting when the unit
is shipped .
Left side panel
Left side panel
The following icons are shown according to the
switch setting .
• Microphone power supply switch status
When the input select switch (LINE / MIC) is set to
"LINE", " " is shown . When it is set to "MIC", the
microphone power supply status is shown .
For the T12 status, depending on whether the T12
power supply function is enabled or disabled, the icon
looks differently as below .
When the T12 power supply function is enabled (default)
T12
Switch setting
Icon
When the T12 power supply function is disabled
Switch setting T12
Icon
• Input select switch status
Switch setting
Icon
• [HPF] switch status
Switch setting
Icon
• [TO ST BUSS] switch status
Switch setting
Icon
Front panel
130
60
Left side panel
DM P48
DM P48
LINE MIC
OFF ON (40 Hz - 200 Hz)
OFF
ON
T12 disabled/enabled setting
Some condenser microphones used for video field
recording, such as the Sennheiser 416T, require
T12 (AB-12V) power . The FM-4 can supply the T12
power .
Unlike the phantom power (P48), connecting a
dynamic microphone to the input channel where
the T12 power is supplied may destroy the mi-
crophone . To prevent such an accident, you can
disable the T12 power supply function . If you do
not use the T12 power supply function in your cir-
cumstance, it is recommended to disable the T12
power by following the procedure below . When
shipped, the T12 power supply function is en-
abled .
<Note>: In the following description, it is assumed that
the input select switches (LINE / MIC) are set to "MIC"
and the Microphone power supply switches are set to
"DM" on the left side panel . In this condition, the input
status display looks as below .
(1) While the input status display is shown, press
the [EDIT] key long enough .
The " " icons change to the fast flashing "
icons .
You can now edit enabled/disabled setting of the
T12 power supply function . ("
setting, which is the default .)
Flashing
(2) Press the [+] key to change "
and press the [EDIT] key long enough .
The T12 power supply function is now disabled .
The display returns to the previous condition . (If you
press the [-] key while the "
they are changed to "
Flashing
<Memo>: The T12 disabled/enabled setting re-
mains even after you turn off the unit .
1
"
" shows "Enable"
" to " ",
" icons are flashing,
" .)