Technics SX-PX201 User manual
ORDER
NO.
EMID941564
Service
Manual
injury
or
death,
This
service
information
is
designed
for
experienced
repair
technicians
only
and
is
not
designed
for
use
by
the
general
public.
It
does
not
contain
warnings
or
cautions
to
advise
non-technical
individuals
of
potential
dangers
in
attempting
to
service
a
product.
Products
powered
by
electricity
should
be
serviced
or
repaired
only
by
experienced
professional
technicians.
Any
attempt
to
service
or
repair
the
product
or
products
dealt
with
in
this
service
information
by
anyone
else
could
result
in
serious
PCM
Digital
Piano
SX-PX201/201M
{M),
{MC},
(XM),
(EN),
(EH), (EF),
(EZ),
(EW),
(EA),
(EP),
(EK),
(XL),
(XR),
(XS),
(XD),
(X),
(XT)
:
USA.
{EP):
Spain,Portugal
=
(MC):
Canada
(EK):
the
United
Kingdom
(XM):
Mexico
{XL);
New
Zealand
Norway,
Sweden,
{XR):
Australia
Denmark,
Finland
{XS):
Malaysia,
Singapore
Holland,
Belgium
(XD);
Saudi
Arabia
France,
Italy
(X):
Hong
Kong,
the
:
Germany
Philippines,
Thailand
:
Switzerland
(XT):
Taiwan
Austria
2S
WARNING
$$
|
Mi
Specifications
KEYBOARD
88
KEYS
(MAX.
POLYPHONIC
32
NOTES)
SOUNDS:
GRAND
PIANO,
UPRIGHT
PIANO,
E
PIANO
1,
E
PIANO
2,
HARPS!,
PIPE
ORGAN
PEDAL
SOFT/SOSTENUTO,
SUSTAIN
DIGITAL
CELESTE
ie)
DIGITAL
REVERB
QO
(ROOM,
STAGE,
HALL)
TOUCH
SENSITIVITY
LIGHT,
NORMAL,
HEAVY
TRANSPOSE
G-C-F#
TUNING
427.3-440,0-453.0
Hz
DEMO
{e)
MIDI
MULTI
TIMBRE,
LOCAL
CONTROL,
OMNI
ON,
PROGRAM
CHANGE,
TRANSPOSE
MODE
SET
PIANO
TUNING,
MINIMUM
RANGE,
SOSTENUTO.
POWER
SWITCH,
MAIN
VOLUME,
MIDI
TERMINALS
(IN,
OUT,
THRU),
PEDAL
IN,
OTHERS
AUX
IN
(R/R4L,
L),
LINE
OUT
(R/R+L,
L},
PHONES
2,
AC
IN,
INITIAL
KEY
OUTPUT
20w
X
2
SPEAKERS
14cm
X
2
POWER
REQUIREMENT
145
W,
90
W
(NORTH
AMERICA
AND
MEXICO}
AC
120/220/240
V
“50/60
Hz
AC120V
60Hz
(NORTH
AMERICA
AND
MEXICO)
AC
230V
—50/60Hz
{NEW
ZEALAND
AND
EUROPE
EXCEPT
FOR
UNITED
KINGDOM)
AC
230-240
V__50/60Hz
{UNITED
KINGDOM)
-
©
1994
Matsushita
Electric
Industrial
ecnnics
GO.
LTD.
Al
igh
eceved
Unauthorized
copying
and
distribution
is
a
violation
of
law.
H
DIMENTIONS
(WX
HX
D}
137.3
cm
X
97.3
om
X
45.3.om
(54-1/18"
X
38-5/16"
X17-27/32")
NET
WEIGHT
44
Kg
(97.0
lbs)
ACCESSORIES
MUSIC
STAND,
AC
CORD,
STAND
“Specifications
are
subject
to
change
without
notice
for
further
improvement.
CONTENTS
@
INTRODUCTION
i
SCHEMATIC
DIAGRAMS
SAFETY
PRECAUTION
.....
HOW
TO
ASSEMBLE
THE
PIANO.
KEYBOARD
RANGES
INITIAL
SETTING....
ARRANGEMENT
OF
CONTROL
PANEL
BASIC
FUNCTIONS
WIRING
CONNECTION
DIAGRAM
BLOCK
DIAGRAM
RAINE
MAIN
P.C.
Board
..
MAIN
P.C.
Diagram
..
AS/ACP/HP
P.C.
Board
.....
I-13
AS/ACP/HP
P.C.
Diagram
.
I-17
TERMINALS
.....
CP/PKB
P.C.
Diagram
PARTS
LOCATION
....
CP/PKB
P.C.
Board
DISASSEMBLY
INSTRUCTIONS
MKB1/2...
SYMPTOMS
WHICH
APPEAR
JACK...
ABOUT
THE
SELF-DIAGNOSTIC
FUNCTION
MIDI
IMPLEMENTATION
CHART
PRECAUTIONS
BEFORE
SERVICING...
TO
BE
SIGNS
OF
TROUBLE...
@
REPLACEMENT
PARTS
LIST
P.C.
Board/WIRING
....
CABINET
PARTS
LOCATION
..
CABINET/CHASSIS
PARTS
PACKING
......
SAFETY
PRECAUTION
@
Safety
Precaution
ORON=
.
Before
servicing,
unplug
the
power
cord
to
prevent
an
electric
shock.
.
When
replacing
parts,
use
only
the
manufacturer's
recommended
components
for
safety.
.
Check
the
condition
of
the
power
cord.
Replace
if
wear
or
damage
is
evident.
.
After
servicing,
be
sure
to
restore
the
lead
dress,
insulation
barriers,
insulation
papers,
shields,
etc..
.
Before
returning
the
serviced
equipment
to
the
customer,
be
sure
to
make
the
following
insulation
resistance
test
to
prevent
the
customer
from
being
exposed
to
a
shack
hazard.
@
Insulation
Resistance
Test
1.
2.
3.
Unplug
the
power
cord
and
short
the
prongs
of
the
plug
with
a
jumper
wire.
Turn
on
the
power
switch.
Measure
the
resistance
value
with
an
ohmmeter
between
the
jumpered
AC
plug
and
each
exposed
metal
cabinet
part,
such
as
screw
heads,
connectors,
contro!
shafts,
handle
brackets,
etc..Measurements
should
range
from
4
MQ
to
infinity
for
all
exposed.
parts.
Exposed
metal
part
Ohmmeter
Resistance
=
4M.
to
©
HOW
TO
ASSEMBLE
THE
PIANO
KEYBOARD
RANGES
To
prevent
the
piano
unit
from
falling
off
the
stand,
secure
it
firmly
with
the
screws.
pilebais,
4
brass-colored
screws.
Side
panel
:
.
Pedal
box
Screw
(Brass-colored)
[Fig.
1]
Assemble
the
side
paneis
and
the
pedal
box
with
the
B]
Place
the
piano
unit
on
the
stand
and
secure
it
to
the
stand.
(Black:
PX201/
Brown:
PX201M)
1
C4;
Es
|
Giti
Bis!
Diet
Far!
Azs
wl
Ds
Fe
Ais Cte
Eo
Ges
Bar
Dso
Fas Aor
Cao
Eas
Gar
Bot
Dea
Fer
Ast
Cea
Eee
Gn
Bro
Dre
Fox
Kes
Coo
[Fig.
3]
a
rs
(2)
Place
the
stand
upright.
Secure
the
crossboard
to
the
front
of
the
L-shaped
brackets
with
4
screws.
Crossboard
(Black:
PX201/
||
Brown:
PX201M)
L-shaped
brackets
IFig.
2]
Connect
the
pedal
cord
and
power
cord
to
their
sockets
located
rear
of
the
piano
unit
as
shown
below.
|
Dt
Gite
(rz
ize
Atzs
Dts
“©
Middle
©
a
iy
Re
Fees
mig
Diss
Goo
jes
P70
Ata
79
Goa
Gio
ges
Aisa
|
Disa
iGtas:
CAE
A
A
A
i
Ces;
E52;
Gos,
Boo)
Dao!
Fas!
Aso’
Cs2|
Ese;
Gsoi
Bes}
Des!
Foo
Aza,
Cre!
Exo]
Gas:
Ber:
Power
cord
INITIAL
SETTING
Wf
INITIAL
SETTING
2.
Press
the
INITIAL
key.
[Fig.
4]
1.
While
pressing
the
MODE
SET
button.
The
initia!
setting
function
is
used
to
return
to
the
original
factory
settings,
and
to
reset
the
customer
settings
and
misoperations.
The
selected
sound
and
various
functions,
MIDI
settings
are
inttialized
with
this
operation.
|
Press
the
INITIAL
key
while
the
MODE
SET
button
is
presse
Or
turn
on
the
POWER
switch
while
pressing
the
INITIAL
kay.
ARRANGEMENT
OF
CONTROL
PANEL
exes
a0
CD
Geodon
O O
2.
oa
a)
Ht
BASIC
FUNCTIONS
@
DEMO
Automatic
demonstration
performances
stored
in
the
piano’s
memory
introduce
the
various
sounds
available.
Listen
to
all
the
demonstration
tunes
in-order,
or
listen
to
the
demo
tune
of
a
specific
sound.
@
MODE'SET,
@
INITIAL
KEY
Used
when
selecting
functions
to
set
or
adjust,
including
type
of
piano
tuning,
minimum
range
(volume),
sostenuto,
initialization,
plus
all
settable
MIDI
functions.
elf
the
INITIAL
KEY
is
pressed
while
the
MODE
SET
button
is
depressed,
the
settings
of
the
buttons,
etc,
will
return
to
the
initialized
settings
made
by
the
manufac-
turer.
@
TRANSPOSE
Cis
the
standard
setting,
but
you
can
raise
or
lower
the
key
of
the
entire
instrument
within
a
one-octave
range
with
these
two
buttons.
The
butions
are
also
used
for
adjusting
the
volume
balance
of
mixed
sounds.
@
souNnD
:
Select
from
6
different
sounds
for
the
piano.
You
can
mix
sounds
by
selecting
two
simultaneously.
All
sounds
feature
Touch
Response.
@
DIGITAL
CELESTE
:
Apply
a
celeste
effect
to
give
the
sound
greater
depth.
The
setting
is
memorized
independently
for
each
sound.
@
DIGITAL
REVERB
Add
a
reverb
effect
to
the
sound.
Choose
one
of
three
different
echo
types.
The
setting
is
memorized
indepen-
dently
for
each
sound.
@
TOUCH
SENSITIVITY
Choose
LIGHT,
NORMAL
or
HEAVY
keyboard
touch
(Touch
Response)
to
match
your
type
of
playing
O
©
Sustain
Pedal
The
sound
is
sustained
when
a
key
is
released
while
this
‘
pedal
is
depressed.
For
GRAND
PIANO
and
UPRIGHT
PIANO
sounds,
the
tones
of
the
17
rightmost
keys
are
automatically
sustained.
@
Soft
pedal
Press
the
pédal
for
softer,
muted
sound.
It
can.
also
be
used
as
a
sostenuto
pedal.
When
used
as
a
sostenuto
,
pedal,
and
PIPE
ORGAN
is
selected,
the
tones
continue
;
to
sound
for
as
long
as
the
pedal
is
depressed.
©
Sustain
pedal
@
Soft
pedal
TERMINALS
ee
HTP
{on
the
rear
panel)
‘AUX
IN
Beo
DB
LINE
OUT
LINE
OUT
(output
level
1.5
Vrms,
600
9).
.
PEDAL
IN.
By
plugging
into
an
extemal
high*power.
amp!
‘t
can
be
reproduced
at
a
high
me.
Or
connect
a
tape
re-
corder
and
use
them
as
recording
terminals.
To
output
mon-
aural
sound,
connect
the
external
equipment
to
the
R/R+L
terminal.
(Do
not
connect
the
L
terminal.
}.
rom
the:inclided
stand
to
this
terminal.
PHONES
({})
X2
For
silent
practice,
headphones
may
be
used.
When
puaged
AUX
IN
(input
level
0.5
Vrms,
6
KQ)
Other
instruments
such
asa’
rhythm
machine
or
sound
module
can
be
connected
to
the
piano
so
that
the
sound
is
output
from
the
piano.
To
récéive
monaural
sound,
connect
the
other
instruments
to
the
R/R+L
terminal.
(Do
not
connect
the
L
terminal.
)
MIDI
(Musical
Instrument
Digital
Interface)
MIDI
is
the
standard
specification
that
enables
connection
to
equipment
such
as
synthesizers
and
personal
computers.
IN:
The
terminal
that
receives
data
from
external
equip-
ment.
OUT:
The
terminal
that
transmits
data
from
this
instrument
to
external
equipment.
THRU:
The
terminal
that
transfers
data
from
the
IN
termina!
directly
to
other
equipment.
*
Use
a
5-pin
DIN
cord
(less
than
15
m
long)
for
these
connec-
tions.
PARTS
LOCATION
alan
Control
Panel
P.C.B.
Amp
&
Power
Supply
P.C.B.
Jack
P.C.B.
AC
Power
Supply
P.C.B.
?
2
: 5
;
waeme
Speaker
Main
P.C.B,
14em,
8Q
Speaker
14cm,
8Q
Power
switch
Headphones
P.C.B.
(inside)
AL:
Soft
Pedal
[Photo-1]
DISASSEMBLY
INSTRUCTIONS
Removing
the
top
cover
1.
Remove
the
music
stand.
2,
Remove
the
top
cover
holding
screws
(@
4
pcs.}.
3.
Slide
the
top
cover
forward
and
lift
up.
[Fig.5]
nN
Removing
the
control
panel
1.
Remove
the
top
cover
(see
Step
2.
Remove
the
control
panel
holding
screws
(@
3
pcs.).
3,
Remove'the
control
panel
as
shown
in
Fig.’6:
Main
volume
knob*
Control
panel
Removing
the
CP
P.C.B.
4.
Remove
the
control
panel
(see
Step
2).
2,
Remove
the
main
volume
knob.
3.
Remove
the
CP
P.C.B.
mounting
screws
(@
6
pes.).
Ey
[Fig.6]
>
[4]
Removing
the
contro!
panel
ornament
1.Remove
the
control
panel
(see
Step
[2)).
2,
Remove
the
CP
P.C.B.
(see
Step
[3)).
3.
Release
the
control
panel
omament
holding
claws,
[Fig.7]
Removing
the
keyboard
assembly
1.
Remove
the
control
panel
(see
Step
[2).
2,
Remove
the
keyboard
assembly
holding
screws
located
on
the
bottom
of
the
cabinet
(®
10
pes.).
Keyboard
Assembly
Ee
Keys
(s)
Disassembly
1.
Remove
the
keyboard
assembly
(see
Step
[5)).
2.
To
release
the
key
claw.
©
Press
the
front
of
the
key
downward
slightly.
©
Press
the
rear
of
the
key
forward
gently.
3.
To
remove
the
key,
lift
as
shown-in
Fig.
9.
NOTE:
«
The
key
claw
is
easily
broken.
Do
not
apply
undue
force.
Should
a
key
claw
break,
it
can
still
be
used;
however,
a
replacement
is
recommended,
*
Ifa
black
key
is
to
bereplaced
it
is
necessary
to
remove
both
adjacent
white
keys.
[Fig.9]
Assembly
1.
Insert
the
front
part
of
the
key
into
the
chassis.
2.
Insert
the
plate
spring
into
the
hammer
notch
as
shown
in
Fig.
10.
3.
While
slowly
lowering
the
key
into
the
chassis,
insert
the
plate
spring
into
the
notch
at
the
rear
of
the
key.
4,
Carefully
insert
the
key
into
the
opening
in
the
chassis
and
slide
the
key
towards
the
rear
to
lock
it
in
place.
[Fig.10]
7|
Removing
the
printed
circuit
boards
«Remove
the
top
cover
(see
Step
[1].
HGiP.c.s.
P.C.B.
1,
Remove
the
keyboard
assembly
(see
Step[5)}.
1.
Remove
the
MAIN
P.C.B.
mounting
screws
(@
2
pes.).
2.
Remove
the
headphone
jack
mounting
nuts
(@
2
2.
Release
the
claws
of
the
P.C.B.
holders...
pes.)}:
HEGHp.c.B.
P.C.B.
4.
Remove
the
AS
P.C.B.
mounting
screws
(@
2
pes.).
+
Release
the
claws
of
the
AC
IN
connector
bracket.
2.
Release
the
claws
of
the
P.C:B.
holder.
:
P.C.B.
1..
Remove
the
JACK
P.C.B.
mounting
screws
(@
3
pes.).
2.
Remove
the
jack
panel
mounting
screws
(®
2
pes.).
P.C.B..
[Fig.11]
SYMPTOMS
WHICH
APPEAR
TO
BE
SIGNS
OF
TROUBLE.
Phenomenon
Remedy
No
sound
is
produced
when
the
keyboard
is
played.
«No
sound
is
produced
if
the
MAIN
VOLUME
is
set
to
MIN.
Use
the
sliding
control
to
set
the
volume
to
an
appropriate
level.
*if
the
MIDI
LOCAL
CONTROL
is
set
to
off,
set
it
to
on.
MAbout
the
back-up
memory
The
selected
sound
and
various
functions,
and
MID!
settings
remain
in
the
memory
for
about
30
minutes
after
the
POWER
is
turned
off.
ff
you
wish
to
return
all
memories
and
settings
to
their
factory
preset
status,
while
pressing
the
MODE
SET
button,
press
the
INITIAL
key
on
the
keyboard.
Or,
press
the
POWER
on
and
hold
the
INITIAL key
at
the
same
time.
1-10
ABOUT
THE
SELF-DIAGNOSTIC
FUNCTION
This
modei
has
some
self-diagnostic
capabilities.
When
set
to
the
seli-diagnostic
mode,
eperaonot
of
various
components
can
be
veritied
by
following
the
procedures
in
the
chart
below-*.
No.
PCB
TEST
MODE
|
fe
Procedure
1
MAIN
RAM
(IC4),
ROM
(C3)
check
1.
Connect
the
CHECKING
DEVICE
(refer
to
page
I-12)
to
CN
7
on
the
..
MAIN
P.C.B.,
and
turn
on
the
CHECKING
DEVICE
switch,
2.
Tum
on
the
power.
switch.
When
the
power
switch
is
turned
on,
the
LED
of
the
CHECKING
DEVICE
flashes
8
times.
The
first
4
flashes
are
for
the
RAM
check,
and
the
latter
4
flashes
are
for
the
ROM
check.
The
order
of
the
LED
flashes
corresponds
to
the
respective
IC
numbers
as
shown
below.
If
an
IC
is
defective,
the
corresponding
flash
time
is
longer.
Examples
1
RAM
1
F
ROM
;
ake
5
er
ee
a2
AT
DS
24
1,
RAM
OK,
ROM
OK
————+
@
@@
@
ee
@e@
paces
‘
1
'
1
2.
RAM
OK,
ROM
(iC3)
defective
————+
@ @
@e©e
=~eee
1
1
' '
3:
RAM
(IC7)
defective,
ROM.OK
:
—--—+»
=
e0@
@e
ee
¢e
:
t
=
ae
Ice
NOTE
:
@
indicates
short
flash
time
=
OK
c
les
==
indicates
long
flash
time’=.Defective
2
MAIN
V53
Gate
Array
(IC2)
check
Press
and
hold
the
two
C
keys
shown
below,
and
then
turn
on
the
power
switch.
f
7
it
HE
i
|
ees}
Ckeys
Monitor
pins
46-48
{(DL6-DL4)
of
IC2
on an
45V
4
oscilloscope,
and
check
whether
incremental
data
:
(see
figure)
is
output.
2
od
wef
eg
ey
ony
‘
058009.
.
3°
f°"
CP»
"|
Gate
array
(IC1)
check
1
Connect
the
CHECKING
DEVICE
to
CN
7
on
the
WAIN
P
ai
B.
(The
Checking
Device
switch
should
be
off).
2.
Press
and
hold
the
two
D
keys
shown
below,
and
thenturn
on
the
power
switch.
When
the
power
switch
is
tured
on,
the
LED
of
the
CHECKING
DEVICE
flashes
4
times.
The
order
of
the
.
LED
flashes
corresponds
to
the
CPU
(IC)
on
the
respective
P.C.B..s
as
shown
below.
If
an
IC
is
defective,
the
corresponding
flash
time
is
longer.
i"
4
2.3
4
4,1C1
OK
——+-
ee
ee
1
2.1C1
defective
——---+
m
@
@ ©
NOTE
:
@
indicates
short
flash
time
=
OK
Gate
Array
(§C1)
=
indicates
long
flash
time
=
Defective
No.
PCB
TEST
MODE
Procedure
4
MAIN
Wave
ROM
(IC7)
check
1.
Press
and
hold
the
two
E
keys
shown
below,
and
then
turn
on
the
power
switch.
2.
Select
the
GRAND
PIANO
sound.
E
keys
When
set
to
the
self-diagnostic
mode,
the
Wave
ROM
outputs
a
sine
wave.
If
no
sound
is
produced,
or
if
the
sound
is
distorted,
the
Wave
ROM
is
defective.
5
cP
Control
Panel
LED
check
Press
and
hold
the
two.F
keys
shown
below,
and
then
turn
on
the
power
switch.
i
l
Press
the
buttons
on
the
control
pane!
and
confirm
that
the
corresponding
LEDs
light.
6
MKB
Keyboard
ROM
(iC2)
check
Press
and
hold
the
two
B
keys
shown
below,
and
then
turn
on
the:
power
switch.
tt
B
keys
If
the
keyboard
ROM
(IC2)
is
OK,
one
confirming
beep
will
sound.
If
it
is
defective,
several
consecutive
error
beeps
will
sound.
Bi
Connection
between
serving
CHECKING
DEVICE
and
MAIN
P.C.B.
CHECKING
DEVICE
CIRCUIT
6
CN6
'
6
CNS
:
Weoddgeccoeene
Eevee
dddeecaccwa
Rea
4F
cr
32
MIDI
IMPLEMENTATION
CHART
1-13
Function
Transmitted
Recognized
Remarks
'
Basic
Default
16
1-16
memorized
j
Channel
Changed
-16
1-16
Default
3
1,3
memorized
Mode
Messages
i
x x
|
Altered
j-
_
Note
"21-108
0-127
Hl
Number
True
voice
cd
*0-127
1
Velocity
Note
ON
fe)
oO
Note
OFF
x
(9nH:
V=0)
x
After
Key's
x x
Touch
Ch's
x
x
:
i
—
oa
4
i
Pitch
Bender
1
x
x
7.
x
“Oo
volume
64
(o) eo)
sustain
pedal
H
Control
66
fe)
e)
sostenuto
pedal
Change
67
e)
eo)
soft
pedal
93
re)
fe}
chorus.
(digital
celeste)
7=
Ox
Ox
Prog
Change
True
#
iia
aes
had
ie
Pecerne
ee
System
Exclusive
fu
X
x
4
on
i
System
Song
Pos
lee,
x
Song
Sel
x x
|
Common
Tune
x
x
H
System
Clock
x
x.
|
Real
Time
Commands
x x
}
iebersyeree
_
4
i
,
Aux
Local
ON/OFF
x
x
|
j
All'Notes
OFF
|
x
fe)
j
Messages
Active
Sense
O°
23@
Reset
aeoli
ie>
3
x
Notes
Whether
or
not
the
data
for
each
of
these
items
is
transmitted
or
received
can
be
set.
*
Charges
depending
on
the
TRANSPOSE
setting.
**
Effective
only
in
the
MULTI
TIMBRE
mode.
Mode
1:
OMNI
ON,
POLY
Mode
2:
OMNI
ON,
MONO
O:
Yes
Mode
3:
OMNI
OFF,
POLY
Mode
4:
OMNI
OFF,
MONO
x:
No
PRECAUTIONS
BEFORE
SERVICING
IE
Precautions
for
measuring
of
the
output
waveforms.
4.
The
waveform
was
measured
with
a
“National
Digital
Storage
Oscilloscope
VP-5730A”.
Therefore
the
waveforms
of
musical
tone
signals
shown
may
differ
somewhat
due
to
the
difference
in
the
timing
of
triggering.
2.
Since
the
1/10
test
probe
is
used,
the
indicated
voltage
value
on
the
bottom
part
of
each
waveform
photois
1/10
oftheactuah
é,
jie
nash
sant
te
sitozchneoi®
Sy
aceWiaehsgeare
value
(e.g.
0.2
V/cm
should
be
2.0
V/cm).
:
i
3.
To
measure
the
waveforms,
first
set
this
unit'to
the
self-diagnostic
mode
(refer
to
page
I-12,
No.
4).
The
Wave
ROM
output
will
*
os
»
i
then
be
output
as
a
sine
wave
to
facilitate
the
servicing
check.
‘
REGS
rien
FREE
SS
SS 5:
Cyr
Se
eS
egeRee
IE
important
safety
notice:
SE
eee
Soieteeganascter
cust
sista
te
7
Components
identified
by
a
A\,
mark
have
special
characteristics
impotant
for
safety.
When
replacing
any
of
these
components,
use
only
manufacture’s
specified
parts:
@
Symbolic
Marks
The
symbolic
marks
for
resistors
and
capacitors
which
used
in
this
circuits
are
classified
as
foliowing
TABLE-1
and
TABLE-2.
*
=
Pall
ae
eee
ETE,
AES
soba
tveaeeee
eck
1,
RESISTORS
*
Resistors
without
symbolic
mark
are
FIXED
CARBON
FILM
RESISTORS
(ERD-type).
+
All
resistors
are
1/4
WATT,
+5
%
TOLERANCE
unless
otherwise
designated
in
schematic
diagrams.
(TABLE-1)
it
vee tet
ieee
e
Berea
tieeeeedee
SYMBOL,
SPECIFICATION
SYMBOL
SPECIFICATION
!
©
Fixed
Carbon
Film
Resistors
®
Fixed
Metal
Film
Resistors
eagrgee
yd
Se
Aen
Pee
wines
SHAPER
YE of
Sopoes
bas
Soaeets
Tiki
e
see
Me
ree
eee Set
ey
“FLAME-PROOF”
(ERD—F—type)
~~”
|“FLAME-PROOF”
(ERX—type)
®
Fixed
Wire
Wound
Resistors
F
Fuse
Type
Fixed Meta!
Oxide
Film
Resistors
“FLAME-PROOF"
(ERF—type)
“FLAME-PROOP”
(ERQ-—type)
®
Fixed Metal
Oxide.
Film
Resistors.
Reo
Fuse
Type
Fixed
Carbon
File
Resistors
ft
ttt
esse
sees
ses
escsesssessess
“FLAME-PROOF”
(ERG—type)
{
aA
“FLAME-PROOP”
(ERD2FC—type)
Fixed Metal
Film
Plesistors
(Prédidiggi
and
High
Stabilly)
(ERO—type)>
fi
2,
CAPACITORS
wn
*
Capacitors
without
symbolic
mark
are
POLYESTER
CAPACITORS.
(ECOM-type,
ECQG-type,
£10
%
Tolerance)
pene
ot
*
Polarized
capacitors
without
symbolic
mark
are
Aluminum
Electrolytic
Capapcitors.
(ECEA-type,
+20
%
Tolerance)
.
arene
{TABLE-2)
SYMBOL
SPECIFICATION
i
TYPE
®)
Non-Polarized
Electrolytic
Capacitors
ECEA_KN_type
®)
Non-Polarized
Electrolytic
(for
Network
system)-
‘ ;
ECEA_Y_type
gids
Airis
aha
ube
cade
ae
ake
@
Tantalum
Solid
Electrolytic
Capacitors
ees
ECS_type
:
CE)
Metalized
Plastic
Film
Capacitors
(TF
Series)
§
ECQV_type
Temperature
Compensating
Ceramic
Capacitors
‘
es
ECC_type
:
ata
Re
:
fades
toe
oseuttiedl¥
oO
High-Dielectric
Constant
Ceramic
Capacitors
ECK_type
ECR_type
saceacgecteestt
wbzss
tewoads
Peabenenees
Axial
Lead
Ceramic
Capacitors
ECB_type
Metalized
Polyester
Film
Capacitors
for
Across
the
Line
ECQ_EW_type
Aluminum
Electrolytic
Capacitors
for
Smoothing
Circuit
:
ECES_type
es
Multilayer
Ceramic
Chip
Capacitors
ECUV_type
WIRING
CONNECTION
Diagram
Vee
}
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GC)
terks
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(wat)
WEG
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Ack
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SPI
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sP2
4em,
8
W3
QEXGSSOBOBOB
(M,
MC,
XM,
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only
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|
CONTROL
PANEL
WI
_GEXGSSi6065A
v
Q
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ful
2
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cnl
MANUAL
KEYBOARD
|
MANUAL
KEYBOARD
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co
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oy
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Pct
HEADPHONES
AC
POWER
CORD
1
I
2
q
3
q
4
q
5
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7
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BLOCK
Diagram
KEIEIN
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MANUAL
KEYBOARD
CIRCUIT
Key
Switchac
&
lodges
Kbit
Romo
os
Gate
Array
MAIN
CIRCU
IT
MGR
CONTROL
PANEL
CIRCUIT
Switches
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7.2
qso~Ts3
Generator
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pipoaeT
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ere
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p01
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Converter
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Bus
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70
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MAIN
P.C.
Board
:
BLOCK
Diagram
—
AG
POWER
SUPPLY
IRCUIT
st
Power
Switch
Per
ac
IN
CONTROL
PANEL
CIRCUIT
“vi
MAIN
VOLUME,
190-188
AMP
&
POWER
SUPPLY
CIRCUIT
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:
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sr]
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si
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ee
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Equotizing
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ay
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g
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rower
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ue
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ca]
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ver
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Wove
ROM
Wave
ROM
4
is
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i
5
T
6
7
I
8
9
T
10
T
Hi
T
12
T
3
14
T
1-4
u-5
MAIN
P.C.
Board
Measuring
Condition
=
Check
Point
@~@
Set
to
the
self-diagnostic
mode
followings.
*
While
pressing
two
E
keys
(@)
simultar
MAIN
(SXPG214681)
(COMPONENT
SIDE)
MAIN
(FOIL
SIDE)
the
power-switeh:
*
SOUND
...
GRANI
FE
*
Main
Volume.
.
Center
.
sees
ee
Le
*
Keyboard.....
.
Ar
(@)
E
@
RE
NOTES:
10'S
ICt:
SVIGD70320GJ
D
C2:
D65012GF-A79
IC3:
QSIGO3C02013
1C4:
M5256BFP85LL_
a
Poni
IC5:
TC25540AF006
C6:
D6382GF-3B9
\c?:
QSIGH3C16CN9
icg:
QSIGH3C16CRO
=_
IC10:
HM65256BLF10
112,
13:
PCM1702U
1C14:
D74HC164GS
1015:
D74HC11GS
Ic16:
D74HCO0GS
119,
20:
M5218AFP
Cc
*
TRANSISTORS
5
2SB941
2SC1815GR:
2SA1015-GR
2SB709AR
2SD601AQ
4
MA8047H
MA110
MA8062
9,0
MA8056
MA2062LF
|
B
4
-
A
i
T
2
T
3
T
4
T
5
6
T
7
—T
8
9
T
10
T
m-6 a-7
MAIN
(FOIL
SIDE)
NOTES:
Measuring
Condition
Check
Point
@~@
Set
to
the
self-diagnostic
mode
followings.
A
¢
While
pressing
two
E
keys
((D)
simultaneously,
turn
on
the
power
switch.
*
SOUND...
*
Main
Volum:
*
Keyboard
.
SVIGD70320GJ
D65012GF-A79
QS1G03C02013
M5256BFP85LL
TC25540AF006
06382GF-3B9
QSIGH3C16CN9
QSIGH3C16CRO
GRAND
PIANO
Center
Ai
(@)
@A,
Key
@E
keys
(Eat
Ese)
Check
Point
@
Set
the
initial
setting
mode
(Refer
to
Page
I
-6)
"
SOUND......
GRAND
PIANO.
i
Center
2
vow
2nes/pv
HM65256BLF10
1€12,
13:
PCM1702U
1C14:
D74HC164GS
1C15:
D74HC11GS
IC16:
D74HCO0GS
1C19,
20:
M5218AFP
*
TRANSISTORS
Qt:
2SB941
Q2,
3:
2SC1815GR
Q4:
2SA1015-GR
Qs:
2SB709AR
D2
wow
ep
wero
Q6:
2SD601AQ
*
DIODES
Di:
MA8047H_
D3~6,
9:
MA110
D7,
11:
MA8062
D8:
MA8056
D12:
MA2062LF
BS
VOW
1
Deny,
ns
wolv
Uoeso,
5
T
8
T
9
10
T
11
12
T
13
T
14
MAIN
P.C.
Diagram
0
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MKBI
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Generator
LSI
Microcomputer
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Arroy
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470x4
Progrommed
EP
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64K
bit
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RAM
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This manual suits for next models
1
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