AKG WMS 450 Mode D'emploi page 27

5 RF LEDs: The green OK LED is lit to indicate the receiver is receiving RF signal, the red MUTE LED
indicates that no signal is being received.
6 A and B diversity LEDs: These two LEDs are lit to indicate which of the two antennas is currently
active.
7 AF LEDs: Indicate the received audio level:
OK (green): -40 dB to +3 dB
CLIP (red): >3 dB (overload)
8 Infrared emitter: Transmits frequency data from the receiver to the handheld or bodypack transmit-
ter. It also transmits the audio gain setting selected on the receiver to the handheld transmitter.
The infrared emitter has a very narrow radiation angle (approx. 10°) and a maximum range of 8 inch-
es (20 cm) to make sure only one transmitter will be tuned to the same frequency.
9 Output level control: This retractable rotary control attenuates the level of the balanced audio output
continuously by 0 to 30 dB.
10 DC IN: Locking DC input for connecting the included power supply.
11 ANTENNA A/B: BNC sockets for connecting the two supplied UHF antennas (11a) or optional remote
antennas.
12 BALANCED: Balanced 3-pin XLR audio output for connecting to, e.g., a microphone input on a mix-
ing console.
13 UNBALANCED: Unbalanced 1/4" TS audio output jack for connecting to, e.g., a guitar amplifier.
14 Output level switch: Slide switch for matching the BALANCED output level to the input gain of the
equipment connected to the receiver. The switch has two positions, 0 and -30 dB. The UNBALANCED
output level is not adjustable.
15 Receiver type plate indicating available carrier frequency ranges and approval information.
16 Microphone element: The handheld transmitter uses a permanently attached D 5 or C 5 microphone
element (see packaging).
17 Infrared sensor: Receives the infrared signal emitted by the SR 450 receiver for automatically setting
the transmitter's carrier frequency and audio input gain.
18 LCD display: Indicates the selected frequency in MHz or as a Preset subchannel, current mode,
transmitter audio gain setting, error messages, as well as the available battery capacity in 1-hour
increments for dry and 2-hour increments for rechargeable batteries counting down from "7 h".
19 ON-MUTE/PRG-OFF: This slide switch provides three positions:
ON: The microphone output signal is fed to the transmitter for transmission to the receiver (normal
mode). The status LED (20) is lit green.
MUTE/PRG: The audio signal is muted. The status LED (20) is lit red. Since power and the RF sec-
tion remain ON, no unwanted noise will become audible from the sound system when you mute
the audio signal.
Sliding the switch from "OFF" to "MUTE/PRG" places the transmitter in programming mode. The
status LED (20) will extinguish.
To switch the audio signal back on, slide the switch to "ON". The status LED (20) will change to
green.
OFF: Power to the transmitter is off. The status LED (20) is dark.
20 Status LED: This bicolor LED indicates the following conditions:
Green: The battery will last for more than one hour, the transmitter is in normal mode.
Red: The battery will be dead in less than one hour and/or the the audio signal is muted.
Flashing red: Error message in the display.
OFF: Power to the transmitter is off or the transmitter is in programming mode.
21 Battery compartment for the supplied AA size 1.5 V dry battery or a commercial 1.2 V, 2100 mAh
NiMH AA size rechargeable battery.
22 Charging contacts: The recessed charging contacts allow you to charge a rechargeable battery on
the optional CU 400 charger without having to remove the battery from the transmitter.
23 Frequency sticker: Sticker attached to the transmitter shaft, indicating the available carrier frequen-
cy range and approval data.
24 Color code for channel identification: If you use the transmitter within a multichannel system, you
can remove the black cover, letter and insert one of the supplied paper strips, and replace the cover
with the supplied clear-plastic cover.
17 - 20, 22, 24: Refer to section 2.5 Handheld Transmitter
25 Antenna: Permanently connected, flexible antenna.
26 Audio input: 3-pin mini XLR connector with both mic and line level pins that automatically match the con-
nector pinout of the recommended AKG microphones (optional) or supplied MKG L instrument cable.
You can connect AKG microphones with a mini LXLR connector to the audio input of the PT 450:
The MKG L instrument cable lets you connect an electric guitar, electric bass, or remote keyboard to
the bodypack transmitter.
For further details, refer to the respective AKG brochures.
27 Frequency sticker: Sticker attached to the transmitter shaft, indicating the available carrier frequen-
cy range and approval data.
28 Battery compartment for the supplied AA size 1.5 V dry battery or a commercial 1.2 V, 2100 mAh
NiMH AA size rechargeable battery. The viewing window lets you check if there is a dry or recharge-
able battery inside the battery compartment. You can also insert a white lettering strip (supplied) or a
color code strip (optional) into the viewing window.
29 Belt clip for fixing the transmitter to your belt.
30 MUTE jack: This jack allows you to connect either the optional Remote Mute switch or the supplied
terminal connector for locking the ON-MUTE/PRG-OFF switch to prevent operating errors.
31 Gain control: This rotary control inside the battery compartment allows you to match the bodypack
transmitter input gain to the microphone or instrument you connected to the transmitter.
AKG WMS 450 V 1.10
2 Description
Rear Panel
Refer to fig. 2 on page ii.
Audio Outputs
Refer to fig. 2 on page ii.
Bottom Panel
2.6 HT 450 Handheld
Transmitter
Refer to fig. 3 on page iv.
2.7 PT 450 Bodypack
Transmitter
Refer to fig. 4 on page iii.
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