Setting Up; Power Supply Connections; Connecting A Footswitch - Yamaha Portatone PSR-640 Owner's Manual

Setting Up

This section contains information about setting up your PSR-740/640 and preparing to play.
Be sure to go through this section carefully before turning the power on.

Power supply connections

1
Make sure that the STANDBY/ON switch of the
PSR-740/640 is set to STANDBY.
2
Connect the optional AC adaptor (PA-6 or other
adaptor specifically recommended by Yamaha) to
the power supply jack.
3
Plug the AC adaptor into an AC outlet.
When turning the power OFF, simply reverse the
procedure.

Connecting a footswitch

FOOT SWITCH jack
The sustain function lets you produce a natural sustain as you play by pressing a
footswitch. Plug an optional Yamaha FC4 or FC5 footswitch into this jack and use it to
switch sustain on and off. The footswitch connected to this jack can also be set to
replicate the functions of some panel buttons, doing things like starting and stopping
accompaniment (page 137).
FOOT VOLUME jack
Connecting an optional Yamaha FC7 foot controller lets you use your foot to change
the volume as you play the PSR-740/640 (expression function). The foot controller
connected to this jack can also be set to replicate the functions of the main volume
controls, such as accompaniment or song volume (page 138).
12
CAUTION
• Never interrupt the power
supply (e.g. unplug the AC
adaptor) during any PSR-
740/640 record operation!
Doing so can result in a
loss of data.
WARNING
• Use ONLY a Yamaha PA-6
AC Power Adaptor (or
other adaptor specifically
recommended by Yamaha)
to power your instrument
from the AC mains. The
use of other adaptors may
result in irreparable
damage to both the
adaptor and the PSR-740/
640.
• Unplug the AC Power
Adaptor when not using
the PSR-740/640, or during
electrical storms.
• Recorded data is retained in
memory even when the
STANDBY switch is turned
off if an AC adaptor is
connected. For details, see
page 159.
• Be sure that you do not
press the footswitch while
turning the power on. If you
do, the ON/OFF status of the
footswitch will be reversed.
• When the sustain or
sostenuto pedal functions
are being used (page 137),
some voices may sound
continuously or have a long
decay after the notes have
been released while the
pedal is held.