b.
Slide
ANT
switch to
EXT
position when using an external antenna.
3. Slide
SPK
switch to
INT
position.
4. Rotate
TEL
and
LINE
volume controls to about 1/4 turn (clockwise).
5.
With power supply connected, slide
POWER
switch to
ON
position.
6.
Adjust tuning dial for desired station. Note: Red
TUNING
LED is brightest when the signal is strongest.
7. Slide
SPK
switch to
EXT
position. Adjust
TEL
and
LINE
volume controls to desired levels for music-on-hold and background music, as required.
8. Adjust
TONE
control as desired:
a. Clockwise rotation increases treble response.
b. Counterclockwise rotation increases bass response.
Figure 3: AFT-100 Control Panel Layout
P82214 D
Sheet 3 of 4
Limited Warranty
Wheelock products must be used within their published specifications and must be PROPERLY specified, applied, installed, operated, maintained and
operationally tested in accordance with these instructions at the time of installation and at least twice a year or more often and in accordance with local,
state and federal codes, regulations and laws. Specification, application, installation, operation, maintenance and testing must be performed by qualified
personnel for proper operation in accordance with all of the latest National Fire Protection Association (NFPA), Underwriters' Laboratories (UL),
Underwriters' Laboratories of Canada (ULC), National Electrical Code (NEC), Occupational Safety and Health Administration (OSHA), local, state,
