Audio-Technica ATW-T310B - Manual (Page 4)

3000 Series Installation and Operation
4
be to the left (ground connected). If hum caused by a ground loop
occurs, slide switch to the right (ground lifted).
12. BALANCED AUDIO OUTPUT JACK: XLRM-type connector. A
standard 2-conductor shielded cable can be used to connect the
receiver output to a balanced microphone-level input on a mixer or
integrated amplifier.
13. UNBALANCED AUDIO OUTPUT JACK: 1 /
4
" phone jack. Can be
connected to an unbalanced aux-level input of a mixer, guitar amp
or tape recorder.
14. POWER INPUT JACK: Connect the DC plug from the included in-line
AC adapter.
15. CORD HOOK: Loop the small DC cord around the cord hook to keep
the DC plug from pulling out accidentally.
Power On/Off
To turn the receiver on, press in the Power switch. The Alert light and
the LCD window will come on (about 1-2 seconds). The operating
frequency will be displayed in the window after the power-up sequence.
To turn the receiver off, press the Power switch again.
LCD Window
The LCD (Liquid Crystal Display) presents a great deal of setup and
operating information clearly and conveniently. (See
Figure D for
examples.)
Fig. D
Up/Down Arrow Buttons
In conjunction with the Mode/Set button, the arrow buttons permit
moving through the menu of functions, and they offer a choice of
settings within each function.
Mode/Set Button
The Mode/Set button shifts the receiver from normal operation into
Menu mode and, in conjunction with the Up/Down arrow buttons,
permits selection of different features and changing of their stored
values in the Edit mode.
How to Make Setting Changes
1. From the normal operating mode, press the Mode/Set button once
to enter the Function Menu mode. (Only the frequency will remain
in the LCD window, and the receiver’s audio output will be cut off.)
2. Use the Up/Down arrow buttons to reach the desired function.
The value in the LCD window is the current setting for that function.
3. Press the Mode/Set button once again to open the list of available
choices for that function. The value will flash, indicating that it can
be changed (Edit mode).
4. Use the arrow buttons to go through the available choices, stopping
on the desired new choice.
5. (a) To accept and enter the new choice, press and hold the Mode/
Set button until “STORED” appears in the LCD. This changes the
value and puts the function of the buttons back at Menu level (step
2 above). (The “B” tuner light will come on while the Mode/Set
button is depressed, to confirm its action.)
(b) To “back out” of the Edit mode without making a new choice,
simply press the Mode/Set button once. The word “ESCAPE” will
appear in the window and the function of the buttons will revert to
the Menu level (step 2 above), without making any changes.
6. Repeat this selection process for any other function changes
desired. When finished with any changes, use the arrow buttons to
move to “QUIT”. Press the Mode/Set button once to exit the
menu and return the receiver to normal operation. (“RF” and “AF”
will reappear in the window, indicating the return to normal receiver
operation, with the receiver’s audio output again enabled.)
Frequency Group Selection
To select a frequency scan group, press the Mode/Set button, then use
the arrow button until the desired group appears in the display. To store
the selected frequency scan group, press the Mode/Set button to enter
the desired group; then use the arrow button to start the scan. When a
flashing number is displayed, press and hold Mode/Set button to select
the frequency. See detailed instructions in System Operation.
How to Restore Default Settings
To return all the receiver functions to their original factory default
settings, first turn the receiver off. Then hold in the Mode/Set button
while pressing and releasing the Power switch. The LCD will briefly
show “RESET”, followed by “WAIT” (release the Mode/Set button),
before commencing normal-mode operation at the default settings.
When the receiver is in the Menu or Edit mode, its audio output is
silenced. Once control-setting operations are completed (or Escape
is used), normal receiver operation will resume with its audio output
restored.
While in the Edit mode, if no action is taken for approximately 30
seconds (no buttons pressed), the receiver will “back out” to the Menu
mode. Similarly, after about 30 seconds of inaction in the Menu mode,
the receiver will “back out” to normal receiver operation with audio
output restored.
High-pass Filter
Internal high-pass filter circuitry may be set to four positions: High-
pass Off, or a 6 dB, 12 dB or 18 dB slope at 150 Hz. The default
setting is Off (“HP OFF”). Increasing the slope of the high-pass filter
further suppresses unwanted low frequencies, while maintaining the
frequency response in the desired audio range.
Meter Hold Setting
When activated (“MH ON”), this function permits the bar-meters in
the LCD window to capture and display the highest-level “AF” audio
modulation (a solid bar) and the lowest-level “RF” signal (a flashing bar)
received from the transmitter. This is particularly useful when setting
up the system initially, during a sound-check, or when diagnosing
operating problems. The default setting is Off (“MH OFF”).
When the Meter Hold is On, it is possible to reset it – to obtain a new
set of RF and AF readings – without turning it off-and-on using the
Menu/Edit functions. Simply press the transmitter’s Power/Mute button
once (to mute the transmitter) and
wait until the receiver’s Alert light
comes on , indicating the Mute condition. Then press the transmitter’s
Power/Mute button once again, to un-mute the transmitter. After the
Alert light goes out , a new set of min/max RF/AF readings will be
indicated on the bar-meters. (Note that, depending upon the digital
updating-and-confirming sequence of the Mute condition data from
the transmitter, it may take several seconds for the Alert light condition
to change.
The Meter Hold function is not reset until the Alert light
has turned on, then turned off. )
Digital Tone Lock™ Squelch
The 3000 Series employs a unique Digital Tone Lock squelch system
that provides enhanced rejection of interference. In addition to providing
highly effective control of unwanted noise, the Tone Lock signal from
the transmitter also conveys data on the transmitter’s battery condition
and mute status back to the receiver for display.
BATT RF AF
MHz
8
7
6
5
4
3
2
1
+6
+3
0
-3
-6
-9
-16
-20
MHz MHz
D1. Normal Receiver Operation
(Transmitter off)
D2. Menu Mode (Frequency) D3. Edit Mode (Frequency)
flashing