Stereo Input Module: Output Enable - Yamaha PM4000 Operating Manual

6.13 Stereo Input Module: Output
Enable Jumpers to Group, Stereo
and Aux Busses
The stereo input module may be used as an effects
return module. In this case, it could be disastrous if an
incoming signal were to be assigned to the bus which is
feeding the signal processor whose output is coming into
the module. In other words, at the press of the wrong
bus-assign button, there could be feedback that might
shatter eardrums and shred loudspeakers. Careful
operation can avoid this problem, but it cannot abso-
lutely prevent it. Therefore, you may wish to disable a
given stereo module's output to the group busses, the
Figure 6-13. Internal Switch Positions For Pre- and Post- Group Master Fader Feeds to Mix Matrix,
stereo bus, or the aux busses. As shipped from the
factory, internal jumpers (headers) on the module carry
the signals to these busses. You can "cut" one pair of
jumpers to positively kill the module's output to the
eight group busses by moving the header (two-pin clip)
to the position which does not complete the circuit to the
output; another pair of jumpers kill the output to the
stereo bus; another three pair of jumpers kill the post-
fader, pre-EQ and post-EQ feeds to the aux busses.
These jumpers are identified in Figure 6-13.
NOTE: Should you wish to reactivate a module's output
to a given bus, you can always restore the jumpers so the
are as originally shipped.
and Block Diagram Location.
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