Yamaha PSR-550 - page 12

Setting Up

This section contains information about setting up your PSR-550 and preparing to play.

Be sure to go through this section carefully before turning the power on.

CAUTION

•Never interrupt the power

supply (e.g. remove the

batteries or unplug the AC

adaptor) during any PSR-550

record operation! Doing so

can result in a loss of data.

Power supply connections

Although the PSR-550 will run either from an optional AC adaptor or batteries, Yamaha recommends use of the

more environmentally safe AC adaptor. Follow the instructions below according to the power source you intend

to use.

■ Using An Optional AC Power Adaptor

WARNING

•Use ONLY a Yamaha PA-6 AC

Power Adaptor (or other

adaptor specifically recom-

mended 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-550.

•Unplug the AC Power Adaptor

when not using the PSR-550,

or during electrical storms.

■ Using Batteries

For battery operation the PSR-550 requires six 1.5V “D” size, R20P (LR20) or

equivalent batteries. When the batteries need to be replaced, “Battery Low” may

appear on top of the display, the volume may be reduced, the sound may be

distorted, and other problems may occur. When this happens, turn the power off

and replace the batteries.

Replace the batteries as follows:

CAUTION

•When the batteries run down,

replace them with a complete

set of six new batteries.

NEVER mix old and new

batteries.

•Do not use different kinds of

batteries (e.g. alkaline and

manganese) at the same time.

•If the instrument is not to be

in use for a long time, remove

the batteries from it, in order

to prevent possible fluid

leakage from the battery.

•Plugging or unplugging the

AC power adaptor while the

batteries are installed will

reset the PSR-550 to the

defaults.

Plug the AC adaptor into an AC outlet.

When turning the power OFF, simply reverse

the procedure.

Open the battery compartment

cover located on the instrument’s

bottom panel.

Insert the six new batteries, being

careful to follow the polarity

markings on the inside of the

compartment.

Replace the compartment cover,

making sure that it locks firmly in

place.

Make sure that the STANDBY/ON switch

of the PSR-550 is set to STANDBY.

Connect the AC adaptor (PA-6 or other

adaptor specifically recommended by

Yamaha) to the power supply jack.

Important Notes on Battery Use

•Since the PSR-550 consumes a considerable amount of power,

Yamaha recommends the use of an AC power adaptor rather than

batteries. The batteries should be considered an auxiliary power

source for data backup.

•The floppy disk drive, in particular, uses a large amount of power, so

it is important to always use an AC power adaptor when performing

disk-intensive operations such as song recording/playback or data

load/save. If you attempt to use battery power for these operations

and the batteries do fail, you will lose not only the data you’re

recording or saving, but also other data in internal memory including

user styles, user pads, registration memory, etc.

•Taking the above precautions into consideration, always use an AC

power adaptor when using the PSR-550 for an important perfor-

mance or when creating important data.