7
MZA8412
PEAK
SIG
PEAK
SIG
PEAK
SIG
PEAK
SIG
PEAK
SIG
PEAK
SIG
PEAK
SIG
PEAK
SIG
0
0
0
0
0
0
0
0
0
0
0
0
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
MUTE
MUTE
MUTE
MUTE
0
+10
LEVEL
CH 1
CH 2
CH 3
CH 4
POWER
ON
OFF
HIGH
-15
+15
LOW
-15
+15
HIGH
-15
+15
LOW
-15
+15
HIGH
-15
+15
LOW
-15
+15
HIGH
-15
+15
LOW
-15
+15
CH 1
CH 2
CH 3
CH 4
CH 5
CH 6
CH 7
CH 8
MASTER 4
MASTER 3
MASTER 2
MASTER 1
-10
PROT
CLIP
0
-10
SIG
PROT
CLIP
0
-10
SIG
PROT
CLIP
0
-10
SIG
PROT
CLIP
0
SIG
-15
+15
HIGH
-15
+15
HIGH
-15
+15
HIGH
-15
+15
HIGH
-15
+15
-15
+15
LOW
LOW
LOW
LOW
-15
+15
-15
+15
-15
+15
MID
MID
MID
MID
-15
+15
-15
+15
-15
+15
4CH MIXER AMPLIFIER
MZA8412
1 2
3
7
15
16
12
8
9
4
5
6
10
11
14
13
Fig.2
- 2 - OPERATING ELEMENTS AND CONNECTIONS
2.1 - FRONT PANEL
1. INPUT CHANNEL EQ CONTROLS:
These controls allow to equaliza the input signal from -15dB to
+15dB at 80Hz(LOW),2.5kHz(MID) and 12.5kHz(HIGH) for CH1~CH4.
2. SIGNAL INDICATORS:
These indicators show current input signal on the each input channels.
3. PEAK INDICATORS:
These indicators warn against overload shortly on the each input channels. We
would like to recommend for users to adjust TRIM control on the rear panel when PEAK indicators are
flickering to make best performance.
4. INPUT CHANNEL FADER:
These allow to adjust for each input level.
5. OUTPUT CHANNEL SELECTORS:
These selectors allow to route each input signal through out to
selected output channels.
6. OUTPUT CHANNEL EQ CONTROLS:
Output channels have two band equalizer which is adjustable
over a wide range as follow. HIGH : ±15dB at 12KHz / LOW : ±15dB at 80Hz
7. OUTPUT LEVEL METER:
These indicators show current output level.
8. CLIP INDICATORS:
These indicators warn against overload shortly on the each output channels. We
would like to recommend for users to adjust FADER control when CLIP indicators are flickering to make
best performance.
9. PROTECT INDICATORS:
These indicators show to be protected amplifiers due to over current or over
heat.
10. MUTE SWITCH:
These buttons allow to mute for each output channels.
11. OUTPUT FADER:
These faders allow to adjust the level for each output channels.
12. POWER INDICATOR:
This indicator lights when power switch is turned on.
13. POWER SWITCH:
This button is power on/off switch.
14. MONITOR SWITCH:
These switches allow you to monitor each output channel through monitor
speaker.
15. MONITOR OUTPUT CONTROL:
This control allow to adjust the monitor level of monitor speaker.
16. MONITOR SPEAKER
Summary of Contents for MZA8412
Page 9: ...9 MZA8412 2 3 BLOCK DIAGRAMS Fig 4...
Page 13: ...Note...
Page 14: ...Note...
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