Bose FreeSpace IZA 2120-HZ Service Manual page 15

FreeSpace
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1
POWER switch – ON/OFF AC power.
2
Power LED – Solid blue LED indicates the unit is ON. Blinking blue LED indicates the unit is in standby mode.
3
INPUT SIGNAL LED – LED is green from –37 dBu to 11 dBu, LED goes red over 11 dBu.
4
OUTPUT LIMIT LED – LED is green from –46 dBFS to –2 dBFS, LED goes red over –2 dBFS, approximately
80 W/channel. For each output 120 watts is 0 dBFS.
5
AUX INPUT – 1/8" (3.5 mm) stereo line-level input connector. A cable insertion mutes INPUT A and INPUT B for priority
override. Pages can still be made from the PAGE INPUT. AUX INPUT does not have any gain adjustment, therefore, all
gain adjustments must be done from the external source device.
6
INPUT A/B Switch – Allows selection of rear line-input channels A or B.
7
TREBLE/BASS Controls
that provide ±6 dB adjustment at 7 kHz and above (TREBLE) and 100 Hz and below (BASS). They have a slope of ap-
proximately 6 dB/octave.
8
MASTER LEVEL Control – Controls the overall system volume for both the loudspeakers and the AUX OUTPUT when
the AUX OUTPUT DIP switch is set to VARIABLE. If the AUX OUTPUT DIP switch is set to FIXED, the AUX OUTPUT
maintains maximum level. When using a REMOTE volume connection, the front panel MASTER LEVEL control becomes
disabled.
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1
INPUT A/B – Balanced and unbalanced line-level input connectors.
2
INPUT GAIN – Allows for 0 dB to –30 dB of adjustment to each INPUT A/B.
3
PAGE INPUT – Euroblock mic/line input that supports dynamic microphones with voice activation (VOX) or a trigger
contact closurefor use with push-to-talk (PTT) microphones.
4
MUTE – Contact closure connection that upon trigger (short) will mute all outputs (including AUX OUTPUT).
5
PAGE INPUT GAIN – Allows for 0 dB to +50 dB of gain control of PAGE INPUT signal.
6
EQ – Provides loudspeaker equalization presets: Flat, DS 16, DS 40, DS 100 and RMU105. Use the Flat setting for
loudspeakers that are not Bose or that do not require EQ.
7
PAGE INPUT THRESHOLD – Adjusts the level at which the VOX PAGE INPUT signal causes other inputs to be lowered.
setting, a –70 dBu signal will trigger a VOX page. At maximum setting, a –60 dBu signal will trigger a VOX page. When in
PTT page mode this adjustment is not active.
8
DIP Switches – A bank of switches to set the amplifier configuration. All switches set to the left position is the standard
configuration.
9
AUX OUTPUT – Variable or fixed, unbalanced line-level output signal for use with ZA zone amplifiers or for routing the
signal to additional audio equipment.
10
REMOTE – Input connector for either a Bose
Bose volume control user interface accessory (PC 041966).
11
OUTPUT 1/OUTPUT 2 TRIM – Allows for up to 40 dB attenuation of the individual loudspeaker outputs relative to the
master level.
12
OUTPUT – Two inverted 2-pin Euroblock connectors for loudspeaker connections. Outputs are not bridgeable.
13
AC Mains receptacle – AC line voltage input.
Product Information
IZA 2120-LZ
®
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® volume control with A/B switch user interface accessory (PC 041967) or a
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