Yamaha SPX990 SPX990 Owners Manual Image - Page 5

Precautions - service manual

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PRECAUTIONS 1. AVOID EXCESSIVE HEAT, HUMIDITY, DUST AND VIBRATION Keep the unit away from locations where it is likely to be exposed to high temperatures - such as in direct sunlight, near stoves, etc. Also avoid locations which are subject to excessive dust accumulation or vibration which could cause mechanical damage. 2. AVOID PHYSICAL SHOCK Strong physical shocks to the unit can cause damage. Handle with care. 3. DO NOT OPEN THE CASE OR ATTEMPT REPAIRS OR MODIFICATIONS YOURSELF This unit contains no user-serviceable parts. Refer all maintenance to qualified Yamaha service personnel. Opening P the case and/or tampering with the internal circuitry will void the warranty. 4. MAKE SURE POWER IS OFF BEFORE MAKING OR REMOVING CONNECTIONS Always turn the power OFF prior to connecting or disconnecting cables. This is important to prevent damage to the unit itself as well as other connected equipment. 5. HANDLE CABLES CAREFULLY Always plug and unplug cables - including the AC cord - by gripping the connector, not the cord. 6. CLEAN WITH A SOFT DRY CLOTH Never use solvents such as benzine or thinner to clean or aerosol spray to spray the unit. Wipe clean with a soft, dry cloth. • 7. ALWAYS USE THE CORRECT POWER SUPPLY Make sure that the power supply voltage specified on the rear panel matches your local AC main supply. 8. THUNDERSTORMS Disconnect the unit quickly when there is any danger of lightning striking in your area. 9. ELECTRICAL INTERFERENCE Since the unit contains digital circuitry, it may cause interference and noise if placed too close to TV sets, radios or similar equipment. If such a problem does occur, move the unit further away from the affected equipment. 10. MEMORY BACKUP The SPX990 contains a special long-life battery that retains the contents of its internal RAM memory even when the power is turned OFF. The backup battery should last approximately 5 years. When the battery voltage drops to a level that is too low to maintain the memory contents, the message shown below will appear on the unit display when the power is turned ON. It is recommended that as a back-up routin you save the data on memory card or store them in an external device using MIDI bulk dump (Program Change Table and System Data can not be copied to memory cards). ******* WARNING :•F::1.::}::i BATTERY ERROR If this message appears, have the backup memory replaced by qualified Yamaha service personnel. Do not attempt to do it yourself. NOTE: The preset programs will not to erased even if the battery voltage drops. 11. STORAGE After reading this operation manual, please keep it and the warranty in a safe place for future reference. 12. ERROR MESSAGES When the SPX990 power is initially turned ON, a selfdiagnostic program runs automatically to check a number of important operational parameters. If a problem is detected, an error message (number El through E4) will appear on the MEMORY No. display. If an error message appears, please take the SPX990 to your nearest Yamaha dealer for servicing, and be sure to tell the service personnel which number was displayed. System Initialization To initialize the system press the PAGE Select 9 key, STORE key and BYPASS key simultaneously with the power turned ON. Please note that the user memory contents will be erased and returned to the original settings. 3

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PRECAUTIONS
P
1.
AVOID
EXCESSIVE
HEAT,
HUMIDITY,
DUST
AND
VIBRATION
Keep
the
unit
away
from
locations
where
it
is
likely
to
be
exposed
to
high
temperatures
-
such
as
in
direct
sunlight,
near
stoves,
etc.
Also
avoid
locations
which
are
subject
to
excessive
dust
accumulation
or
vibration
which
could
cause
mechanical
damage.
2.
AVOID
PHYSICAL
SHOCK
Strong
physical
shocks
to
the
unit
can
cause
damage.
Handle
with
care.
3.
DO
NOT
OPEN
THE
CASE
OR
ATTEMPT
REPAIRS
OR
MODIFICATIONS
YOURSELF
This
unit
contains
no
user
-serviceable
parts.
Refer
all
maintenance
to
qualified
Yamaha
service
personnel.
Opening
the
case
and/or
tampering
with
the
internal
circuitry
will
void
the
warranty.
4.
MAKE
SURE
POWER
IS
OFF
BEFORE
MAKING
OR
REMOVING
CONNECTIONS
Always
turn
the
power
OFF
prior
to
connecting
or
discon-
necting
cables.
This
is
important
to
prevent
damage
to
the
unit
itself
as
well
as
other
connected
equipment.
5.
HANDLE
CABLES
CAREFULLY
Always
plug
and
unplug
cables
—
including
the
AC
cord
—
by
gripping
the
connector,
not
the
cord.
6.
CLEAN
WITH
A
SOFT
DRY
CLOTH
Never
use
solvents
such
as benzine
or
thinner
to
clean
or
aerosol
spray
to
spray
the
unit.
Wipe
clean
with
a
soft,
dry
cloth.
•
7.
ALWAYS
USE
THE
CORRECT
POWER
SUPPLY
Make
sure
that
the
power
supply
voltage
specified
on
the
rear
panel
matches
your
local
AC
main
supply.
8.
THUNDERSTORMS
Disconnect
the
unit
quickly
when
there
is
any
danger
of
lightning
striking
in
your
area.
9.
ELECTRICAL
INTERFERENCE
Since
the
unit
contains
digital
circuitry,
it
may
cause
interfer-
ence
and
noise
if
placed
too
close
to
TV
sets,
radios
or
similar
equipment.
If
such
a
problem
does
occur,
move
the
unit
further
away
from
the
affected
equipment.
10.
MEMORY
BACKUP
The
SPX990
contains
a
special
long
-life
battery
that
retains
the
contents
of
its
internal
RAM
memory
even
when
the
power
is
turned
OFF.
The
backup
battery
should
last
approxi-
mately
5
years.
When
the
battery
voltage
drops
to
a
level
that
is
too
low
to
maintain
the
memory
contents,
the
message
shown
below
will
appear
on
the
unit
display
when
the
power
is
turned
ON.
It
is
recommended
that
as
a
back-up
routin
you
save
the
data
on
memory
card
or
store
them
in
an
external
device
using
MIDI
bulk
dump
(Program
Change
Table
and
System
Data
can
not
be
copied
to
memory
cards).
*******
WARNING
:•F::1.::}::i•::}::}::}:
BATTERY
ERROR
If
this
message
appears,
have
the
backup
memory
replaced
by
qualified
Yamaha
service
personnel.
Do
not
attempt
to
do
it
yourself.
NOTE:
The
preset
programs
will
not
to
erased
even
if
the
battery
voltage
drops.
11.
STORAGE
After
reading
this
operation
manual,
please
keep
it
and
the
warranty
in
a
safe
place
for
future
reference.
12.
ERROR
MESSAGES
When
the
SPX990
power
is
initially
turned
ON,
a
self
-
diagnostic
program
runs
automatically
to
check
a
number
of
important
operational
parameters.
If
a
problem
is
detected,
an
error
message
(number
El
through
E4)
will
appear
on
the
MEMORY
No.
display.
If
an
error
message
appears,
please
take
the
SPX990
to
your
nearest
Yamaha
dealer
for
servicing,
and
be
sure
to
tell
the
service
personnel
which
number
was
displayed.
System
Initialization
To
initialize
the
system
press
the
PAGE
Select
9
key,
STORE
key
and
BYPASS
key
simultaneously
with
the
power
turned
ON.
Please
note
that
the
user
memory
contents
will
be
erased
and
returned
to
the
original
settings.
3