44
Left Signal
Right Signal
Ground
Headphones
Signal (+ve)
Ground Sense (-ve)
Screen
Signal (+ve)
Gnd/Screen
Gnd/Screen
Signal Send
Signal Return
Gnd/Screen
Tip
Ring
Sleeve
Mix Inserts
Mix Outputs
Aux Outputs
Monitor Outputs
Mix INSERTS
The unbalanced, pre-fade Mix insert point is a break in the output signal path to allow
the connection of, for example, a compressor/limiter or graphic equaliser. The Insert is
a 3-pole 'A' gauge jack socket which is normally bypassed. When a jack is inserted,
the signal path is broken, just before the mix fader.
The mix signal appears on the TIP of the plug and is returned on the RING. A 'Y' lead
may be required to connect to equipment with separate send and return jacks as shown
below:
MONITOR OUTPUTS
The Monitor outputs are unbalanced on 3-pole 'A' gauge jacks, wired as shown. The
outputs are automatically cut off if a jack is inserted in the PHONES socket.
HEADPHONES
The PHONES output is a 3-pole 'A' gauge jack, wired as a stereo output as shown,
suitable for headphones of 200
W
or greater, although impedances as low as 50
W
will
operate satisfactorily. 8
W
headphones are not recommended. Inserting a jack
automatically cuts off the Monitor outputs (see above), which are restored when the
PHONES jack is removed. This allows a self-operator to continue monitoring while
making voice recordings without having to turn the power amplifiers down.
GROUNDING CONSIDERATIONS
The power supply does not provide the mixer with any direct connection to mains
ground, and therefore some care must be taken to ensure that a ground connection is
made at an appropriate point in the system. In PA systems the most suitable point
would be to ground through the Mix Outputs into the power amp leads. In a studio set-
up the Monitor Outputs would provide a suitable connection via the monitor power
amp leads.
(a) Balanced Connection
To External Device
Hot
Hot
Screen
Screen
Ground Sense
Ground Sense
Experience has shown that sometimes it is better
not to connect screen at external device end.
From FOLIO LITE
Ground Compensated
Output
From FOLIO LITE
Ground Compensated
Output
To External Device
(b) Unbalanced Connection
Send to External Device
Signal Send
Screen
Signal Return
Insert Point
Return from External Device
MIX OUTPUTS, AUX OUTPUTS
The Mix and Aux outputs are on 3-pole 'A' gauge jack sockets, wired as shown on the
left and below, and incorporate ground compensation which helps to avoid ground
loops and their associated hums and buzzes when feeding into unbalanced equipment.
All manuals and user guides at all-guides.com
