Formula Sound ZMR 80 Podręcznik użytkownika - Strona 4
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Drukuj stronęConfiguration of internal options
PSU Module
The ZMR-80 PSU PCB drawing shows the position of the ground lift select. This will remove the
mains ground from 0V. Removing mains earth is generally not recommend unless there is a
good technical reason for it.
Also shown is the position of the Phantom power select for the priority input (adjacent is a pot
which adjusts the priority input level if required).
Input Module (See drawing PC408 later in manual)
For phono (line) input the recessed switch on the rear panel marked I/P SEL BAL GAIN must be
fully anti clockwise (Position 1), only in this postion are the phono socket inputs enabled.
For Microphone input on the XLR the recessed switch on the rear panel marked I/P SEL BAL
GAIN must be in Position 2 – 6 (at least 1 step clockwise, the gain increases as you move from
position 2 to 6), only in positions 2 – 6 is the XLR microphone input enabled.
For stereo balanced input selection the recessed switch on the rear panel marked I/P SEL BAL
GAIN must be in Position 2 on Input A and Position 1 on input B and an internal jumper set (see
ZMR-80 INPUT PCB drawing which shows the position), when selected the upper channel on
the module utilises the both XLR connectors on the module. The lower channel may still be
used via the phono socket input.
When using the balanced input ensure the recessed switch is in position 2 for Input A and
Position 1 for input B. Positions 3 – 6 still change the gain on the XLR, uneven L and R will
mean a switch in the wrong position.
The ZMR-80 INPUT PCB drawing shows the position of the BUSS selection, each input is
allocated to a buss which the output module will recognise as 1 – 8. Normally input 1 would be
allocated to buss 1, input 2 to buss 2 up to the maximum of number 8.
Only one input can be allocated to each buss.
Buss 1 – 4 are stereo and buss 5 – 8 are mono. If a number of stereo balanced inputs are
required it may be necessary to allocate inputs in a different order, for example module 1 may
have one input allocated to buss 1 (stereo) and the second input allocated to buss 5 (mono).
The output module would then see input module 1 as numbers 1 and 5, the buss number an
input is allocated to is the source number the output module will recognise.
A custom option is available from the factory for 6 stereo input/6 stereo buss, reducing the
overall maximum number of inputs but increasing the maximum number of stereo inputs.
Phantom power selection is shown for each input.
The two inputs of a module may be used together for voice over, the upper channel (A) with a
voice (Mic) input and the lower channel (B) with music/voice. When a signal is present from
input A the signal from input B will be automatically turned down and when the signal on A stops
B will fade back up. Select both voice over and mix A and B to channel A.
Recessed in the front panel are screwdriver adjustable gain trims for each input and two band
EQ.