Fostex FM-3 Input status display, Microphone power supply switch status, HPF switch status

Input status display

On the input status display, not only you can see the cur- rent status of the following switches, but also you can disable or enable the T12 power supply function. The fol- lowing shows the default setting when the unit is shipped.

Left side panel Front panel

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 dif- ferently as below.

When the T12 power supply function is enabled (default)

Switch setting	T12	DM	P48
Icon

When the T12 power supply function is disabled

Switch setting	T12	DM	P48
Icon

• Input select switch status

Switch setting	LINE	MIC
Icon

• [HPF] switch status

Switch setting	OFF	ON (40~300Hz)
Icon

• [TO ST BUSS] switch status

Switch setting	OFF	ON
Icon

T12 disabled/enabled setting

Some condenser microphones used for video field re- cording, such as the Sennheiser 416T, require T12 (AB- 12V) power. The FM-3 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 microphone. To prevent such an accident, you can disable the T12 power supply func- tion. If you do not use the T12 power supply function in your circumstance, it is recommended to disable the T12 power by following the procedure below. When shipped, the T12 power supply function is disabled.

<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. (“			” shows “Enable” setting
	that is the default).
		Flashing
(2)	Press the [+] key to change “				” to “	”, 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 “ ” icons are flashing, they are
	changed to “		”.)

Flashing

<Memo>: The T12 disabled/enabled setting remains even after you turn off the unit.

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