Control Panel Switch & Connectors; Adjusting The Main Tuning Dial Torque - Yaesu FT-891 Operating Manual

Control Panel Switch & Connectors
SP-PH switch
If you use earphones with this transceiver, move this switch to the "PH" position before
inserting the earphone plug into the SP/PH Jack, to prevent injury your ears.
SP/PH jack
This 3.5-mm, 2-pin jack provides adjustable audio
output for an external speaker ( 4 Ω ~ 16 Ω impedance )
or earphones. The audio level varies according to the
setting of the front panel AF knob.
Important Note: When an earphone plug is inserted

Adjusting the Main tuning DIAL torque

The torque ( drag ) of the Main Tuning DIAL knob may be adjusted for your operating
preferences. Slide the lever clockwise to reduce the drag, or counter-clockwise to
increase the drag.
12
into this jack, the SP-PH slide switch ( located on the back side of
the front panel ) MUST BE set to the "PH" position, to prevent the
possibility of injury to your ears.
①
CONTROL Jack
SIGNAL GND
Reduce
FT-891 Operating Manual
②
Increase