Yamaha AX-492, AX-592, AX-892 Owner's Manual page 10

GND terminal (for turntable use)
Connecting the ground wire of the turntable to this terminal will
normally minimize hum, but in some cases better results may
be obtained with the ground wire disconnected.
REMOTE CONTROL (PHONO) connector
AX-592 and AX-892 only
If you have a YAMAHA turntable with a terminal for remote
control, connect it to this connector using the cable provided
with the turntable. This connection allows you to control the
turntable with the remote control.
PHONO
REMOTE
CONTROL
(AX-592)
PHONO (MM/MC) switch
Select either MM or MC depending on your phono cartridge. If
you use a high-output MC cartridge, select MM. To select MC,
press the switch so that it stays in. To select MM, press the
switch again, so that it releases.
MM
MC
10
REMOTE
CONTROL
PHONO
(AX-892)
AX-592 and AX-892 only
PRE OUT/MAIN IN terminals
Removing the jumper pins enables this unit to independently
perform the functions of a control amplifier and a power
amplifier. These terminals are for connection of a signal-
processing system such as a graphic equalizer or sound
processor.
If a sound processor or other external unit is connected
between these terminals, the VOLUME control of this unit can
be used for overall adjustment of the sound level.
To connect such a unit, remove the jumper pins from the PRE
OUT/MAIN IN terminals, connect the inputs of that unit to the
PRE OUT terminals and its outputs to the MAIN IN terminals.
For details, refer to the owner's manual included with the unit to
be connected.
C O U P
L E R
P R E
O U T M A IN
IN
L
R
Note
If you will not use the PRE OUT/MAIN IN terminals, never
remove the jumper pins. If removed, no sound will be
output from this unit.
If you will use this unit with an external unit connected
between the PRE OUT and MAIN IN terminals, make sure
that the CD DIRECT AMP and PURE DIRECT switches on
the front panel are turned off.
If you will use this unit as a power amplifier, connect the
outputs of an external control amplifier, etc. to this unit's
MAIN IN terminals. In this case, this unit's controls will not
function, except the PHONES jack and the SPEAKERS
switches, so use the controls on the external control
amplifier to make volume adjustment, etc.
AX-592 and AX-892 only