Williams Sound T45 Manuel D’Utilisation
9
Personal PA
®
DSP FM Wideband Transmitter
Power Button
Push-button switch turns the transmitter on or off. The desktop power supply provides power to the unit at all times. (Figure 7)
OLED Display
This shows current operation settings and is also used with the menu control buttons for configuring the T45. Each time the
power of the unit is turned on, the OLED Display shows a “Williams Sound” start-up screen (Figure 8). After seven seconds, the
“RF” (On-Air) LED will illuminate and the default Main Info Screen screen will be displayed. The T45 is now fully operational. If the
“RF” (On-Air) indicator does not illuminate, go back and double-check the connections. Make sure the power supply is properly
installed, and the power button is in the “on” position. (Figure 7)
power of the unit is turned on, the OLED Display shows a “Williams Sound” start-up screen (Figure 8). After seven seconds, the
“RF” (On-Air) LED will illuminate and the default Main Info Screen screen will be displayed. The T45 is now fully operational. If the
“RF” (On-Air) indicator does not illuminate, go back and double-check the connections. Make sure the power supply is properly
installed, and the power button is in the “on” position. (Figure 7)
(NOTE: If the transmitter is not fully functional, the transmitter will attempt to auto-recover by rebooting itself.)
Audio Input Level Indicator
The bar graph indicator shows audio level in 3dB steps at the input of the audio level processing circuit. The indicator is
peak responding and is calibrated so that optimum level is reached when the 0dB LED generally lights and +9dB only lights
occasionally. Use the Audio Level settings in the menu to set the audio levels. (Figure 7)
peak responding and is calibrated so that optimum level is reached when the 0dB LED generally lights and +9dB only lights
occasionally. Use the Audio Level settings in the menu to set the audio levels. (Figure 7)
Input Overload Indicator
The OLED Display shows an overload warning screen each time the audio signal exceeds the capacity of the input circuit. Either
(1) the source of the audio coming in to the T45 needs to be adjusted to correct this or (2) the Audio Input Gain needs to be
adjusted. (Figure 7)
(1) the source of the audio coming in to the T45 needs to be adjusted to correct this or (2) the Audio Input Gain needs to be
adjusted. (Figure 7)
RF Indicator (On Air)
Indicates when radio frequency is transmitting. (Figure 7)
Hot Buttons / Menu Controls
• While the transmitter is displaying the Main Info Screen (Figure 8), the Up “
^
” and Down “v” buttons adjust the Audio Input
Gain; while the Left “<” and Right “>” buttons change the Channel. This immediate adjustment capability is referred to as “Hot
Buttons”.
Buttons”.
• The Menu button is a Enter/Exit menu function only. It does not “select” anything within the menu. It allows the user to quickly
return to the Main Info Screen from any place in the menu.
• While the transmitter is displaying the Menu on the screen:
• The Up “
^
” button navigates upward in the menu or increases a setting (i.e. if adjusting Headphone Volume, increases the
volume).
Figure 7: PPA T45 Front View
Controls & Features
POWER
BUTTON
(BACKLIT WHEN
UNIT IS ON)
RF
INDICATOR
(ON-AIR)
AUDIO
INPUT
LEVEL
LEVEL
INDICATORS
BACK
BUTTON
DOWN/
DECREASE
BUTTON
FORWARD
BUTTON
BUTTON
UP/
INCREASE
BUTTON
MAIN
MENU
BUTTON
OLED
DISPLAY
HEADPHONE
JACK
JACK
A405
INPUT
OVERLOAD
INDICATOR