Front Panel Controls; Input Channel - Yamaha MM1242 Manual De Operación

Front Panel Controls

■ Input Channel

GAIN
+10 –16 –60 –26
LINE
MIC
HIGH
–15
HI-
MID
–12
LO-
MID
–12
LOW
–15
AUX
1
0
AUX
2
0
AUX
3
0
AUX
4
0
PAN
L
PFL
2
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1 GAIN control
1
2
2 LINE/MIC switch
+15
3 EQ
+12
3
+12
+15
P
10
O
S
T
10 4
P
10
R
E
10
5
4 AUX send controls
R
6
PEAK
7
10
5
0
5
10
15
20
30
40
8
00
This control adjusts the input sensitivity of each input channel from –16dB to
–60dB for microphone source through the XLR input connectors, and from
+10dB to –26dB for line source through the phone jack input connectors. For
optimum performance, adjust this GAIN control so that the PEAK indicator
LED lights occasionally.
This switch toggles between MIC IN. Push this switch in (to MIC) when a mi-
crophone is connected to the MIC IN connector. Set this switch to LINE when
a line source is connected to the LINE IN connector.
The equalizer section provided on each input channel consists of LOW, LO-
MID, HI-MID and HIGH controls at the following frequencies with the
maximum range of ±15dB.
HIGH : 12kHz
HI-MID : 3kHz
LO-MID : 300Hz
LOW : 80Hz
Frequency response will be flat when each control is set to the center.
+20
+15
+10
+5
0
–5
–10
–15
–20
50 100 200 500 1k 2k 5k 10k 20k
FREQUENCY (Hz)
Each AUX control determines the level of the signal sent from the input
channels to the correspondingly-numbered AUX mixing bus.
• AUX 1 and AUX 2 are factory pre-wired for post-fader operation, so the
AUX 1 and AUX 2 signals are affected by the setting of the channel fader.
• AUX 3 and AUX 4 are factory pre-wired for pre-fader operation, so the
AUX 3 and AUX 4 signals are not affected by the setting of the channel
fader. Therefore, the signal can be output either to AUX 3 or AUX 4 as an
auxiliary output, instead of using the stereo outputs.