Yamaha MM1242 - Manual (Page 5)

2
Front Panel Controls
■ Input Channel 1 GAIN control
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.
2 LINE/MIC switch
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.
3 EQ
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.
50 100 200 500 1k 2k 5k 10k 20k
FREQUENCY (Hz)
+20
+15
+10
+5
0
–5
–10
–15
–20
RESPONSE (dB)
4 AUX send controls
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.
GAIN
+10 –16 –60 –26
LINE
MIC
HI-
MID
–12 +12
HIGH
–15 +15
LO-
MID
–12 +12
LOW
–15 +15
AUX
1
0 10
AUX
2
0 10
AUX
3
0 10
AUX
4
0 10
PAN
L R
P
O
S
T
P
R
E
PEAK
PFL
10
5
0
5
10
15
20
30
40
00
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