Yamaha PM3500 - 2.2 PM3500 rear panel features; 2.2.1 Standard (monaural) input module

Channel inputs, sub inputs, sub outputs and primary
outputs use XLR-3 type connectors, wired as follows:
ы [шы]
оно |
ao [m
Note the male and female polarities of these connectors
on the PM3500; male connectors are generally used as
outputs, and female as inputs. This can assist you in
remembering the direction of signal flow.
INSERT IN/OUT points are 1/4" tip-ring-sleeve con-
nectors, wired as follows:
[Pim __| Connection
е mm |
Tip — (cold)
Input channel XLR-type connectors are electronically
balanced, but optional input isolation transformers can
be installed on a per-module basis. All output XLRs are
also electronically balanced.
If required, optional isolation transformers can be sup-
plied in a 19-inch rack-mount unit, each unit accommo-
dating eight transformers. In this way, inputs and
outputs can be provided with extra grounding isola-
tion and common mode rejection where required,
without the price in direct costs, weight or signal qual-
ity where the transformers are not required.
2—Features
2.2.1 Standard (monaural) input module
95
94
Phantom power warning
To prevent hazard or damage, connect only micro-
phones and cables that conform to the IEC268-15A
standard.
93
94
95
INPUT
This XLR-type connector supplies the signal to
the channel module. The nominal input level
may vary from -70dBu to +10dBu according to
the settings of the channel input gain control and
the pad switch [5] (page 11) and [6] (page 11).
INSERT OUT and INSERT IN
These phone jacks serve as patch points for the
channel. The nominal input and output is +4dBu
(1.23V).
The OUT jack may be used as an auxiliary output
to another console or as a direct output to a mul-
titrack tape recorder (however, a separate DI-
RECT OUT [95] (page 31) is provided for this
purpose). Most often, it will be used for sending
the input channel signal to an off-board signal
processor (compressor/limiter, graphic equaliz-
er, noise gate, etc.). The INSERT OUT jack is al-
ways live, regardless of the channel’s ON status.
The IN jack applies a signal to the input channel
and is normalled so that inserting a plug inter-
rupts the channel’s internal signal flow, bringing
in the signal here (usually the return from an off-
board processor). This can be bypassed with the
channel’s INSERT switch [13] (page 13), which
overrides this normalling.
DIRECT OUT
The DIRECT OUT jack outputs the channel’s out-
put from a post-fader position. However, each
module can be changed (jumper setting) to
change this pick-off point to post-pad and gain,
but pre-EQ and HPF. See the OPTIONAL FUNC-
TIONS section for details
Page 31