JB Systems MM-10 MIXER Manual De Instrucciones página 5

ENGLISH
13. 60mm FADER
This Slide control provides level control of input signal to the main stereo mix output and will also
control the Post-fade Aux Send 1.
STEREO OUTPUT CHANNEL
1. STEREO OUTPUT - 3 pin Male XLR Socket
Output wiring:
Balanced: Unbalanced:
Pin 1= Ground Pin 1 = Ground
(sleeve)
Pin 2 = Positive Signal Pin 2 = Signal
Pin 3 = Negative Signal Pin 3 = no
connection
Nominal Output Level:
Balanced +6dBm (1.55V RMS variable to
+10/16dB)
Unbalanced 0dBm (0.775V RMS variable
to +10/16dB)
Impedance:
Output: <50 Ohm Minimum Load: 600
Ohm
2. AUX SEND OUTPUT – 1/4" Jack Mono
Socket (unbalanced) output
Output wiring:
Tip = Signal Sleeve = Ground
Nominal Output Level:
0dBm (0.775V RMS variable to +10dBm)
Impedance:
Output: <50 Ohm Minimum Load: 5K Ohm
3. AUX RETURN LEFT/MONO – 1/4" Jack
Mono Socket Input
(If used as mono input it will automatically
connect the input to the AUX Return Right
socket)
Output wiring:
Tip = Signal Sleeve = Ground
Input impedance: 10K Ohm
Input sensitivity: 250mV RMS (-10DBm)
4. AUX RETURN RIGHT/MONO – 1/4" Jack
Mono Socket Input
Same as (3) Aux Return Left/Mono.
5. LED METER
This is a 10 segment Led meter with VU calibration providing a signal monitor range from –20dB to
3dB with a change of colour at the nominal 0dB position.
6. AUX RETURN LEFT LEVEL CONTROL
This level control will set the desire amount of return signal on to the main left output mix only.
7. AUX RETURN RIGHT LEVEL CONTROL
This level control will set the desired amount of return signal on to the main right output mix only.
(Use in conjunction with left level (6) when mixing a mono input signal)
8. MASTER AUX SEND OUTPUT LEVEL CONTROL
This level control sets the desired output level of Aux send mix to the output socket (it's best set at
N°7 when Finitially setting up). Subsequently adjust to level required by external equipment.
JB SYSTEMS®
OPERATION MANUAL
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ENGLISH
9. MASTER OUTPUT FADER CONTROL
This Slide control is used to set the required overall output level to the power amplifier (or other
equipment). The calibration shows a suggested nominal running level, referenced '0' (10dB boost is
available if required).
10. ON INDICATOR
This led indicates that the mixer power is on.
11. PHANTOM SWITCH
This switch is recessed to prevent accidental operation and has a corresponding red LED indicator; it
should NOT be operated while the mixer is live.
NOTE:



12. STEREO RECORD OUTPUT – Left and Right RCA Socket Outputs (unbalanced)
The signal is derived from the main stereo output mix after the output faders.
Nominal '0' Output Level: -10dBv(316mVRMS)
Output impedance: 600 Ohm
Load impedance (min): 5K Ohm
13. STEREO PLAYBACK INPUT – Left and Right RCA Socket Inputs (unbalanced)
Signal is routed to the main stereo output before the faders and the monitoring system.
Normal Input Sensitivity: 316mV RMS (-10dBv)
Input impedance: 5K Ohm
14. PLAYBACK SWITCH
Allows ON/OFF control of Playback input signal onto the main stereo output mix.
15. PLAYBACK LEVEL CONTROL
Level control of the 2-track tape playback onto the main stereo output of the mixer (before the main
output faders) set for desired mix.
16. TAPE MONITOR SWITCH
This switch sets the Headphone and Led Meter Monitoring system over to Tape Playback monitoring
(Before the playback switch and level control).
17. PFL SWITCH
This switch sets the Headphone and Led Meters system over to PFL (input pre-fade listen)
monitoring. It works in conjunction with PFL switches on each input channel.
18. HEADPHONE LEVEL CONTROL
This control is used in conjunction with the switch to monitor signals within the mixer. With both Tape
Monitor and PFL switches 'OFF' the headphone system and Led meters will monitor the main stereo
output.
19. HEADPHONE OUTPUT – 1/4" Stereo Jack Socket Output
Output wiring:
Tip = left signal
Ring = right signal
Sleeve = ground
Minimum Load impedance: 40 Ohm
MM-10 JB SYSTEMS®
It should be pre-selected during setting up with the main output faders and MIC input gain
controls down.
ALL XLR MIC inputs will be phantom powered when selected. Some microphones that do NOT
require phantom supply may not operate or are damaged – check instructions.
The Jack Line inputs will be unaffected and can be used as normal.
(Your service station may be able to disable the Phantom Power)
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OPERATION MANUAL
MM-10