Technics SX-PR100 User manual

ORDER NO. EMID881229
A4
“Service
Manual
oX-PR100/PR200
(M), (MC), (EN), (El), (EH), (EB), (EF), (EZ), (EW),
(EP), (EK), (XT), (XL), (XR), (XS), (XD), (X)
U.S.A. : the United Kingdom
: Canada : Taiwan
: Norway, Sweden, : New Zealand
Denmark, Finland : Australia
Italy : Malaysia, Singapore,
: Holland South Africa
: Belgium : Saudi Arabia
: France, Austria : the Middle East, Indonessia,
: Germany Hong Kong, the Philippines,
: Switzerland Thailand
: Spain
Photo: SX-PR200
Specifications
—
SXPRTOO
SXPR200
KEYBOARD
76
KEYS
(16
NOTES
POLYPHONIC)
88
KEYS
(16
NOTES
POLYPHONIC)
KEY
SPLIT
ONGC)
C2
ee
gg
ee
FULLBAND
SETTING
COMPUTER
FSC,
RECORD*
PLAY
SEQUENCER
BASS,
ACCOMP,
LEFT, RIGHT,
RECORD*
PIANO
1,
2,
E.
PIANO
1,
2,
HARPSICHORD,
GUITAR,
JAZZ
GUITAR,
HARP,
VIBETONE,
PIPE
ORGAN,
JAZZ
ORGAN,
STRING
ENSEMBLE,
BRASS,
TRUMPET,
TENOR
SAX,
RIGHT/ACCOMP
TONE
CLARINET,
FLUTE
OCTAVE
SHIFT
(—2,
—1),
SUSTAIN
PEDAL,
BALANCE
(RIGHT,
ACCOMP)
PIANO
1,
2,
E.
PIANO,
HARPSICHORD,
CLAVI,
GUITAR,
JAZZ
GUITAR,
HARP,
JAZZ
ORGAN,
STRING ENSEMBLE, BRASS, SYNTH PERC, ACOUSTIC BASS, ELECTRIC BASS,
CHOPPER BASS, SYNTH BASS
OCTAVE SHIFT (+2, +1), SUSTAIN PEDAL BALANCE (LEFT, BASS)
PEDAL
SELECT
SOFT,
SOSTENUTO,
FILL
IN
&
INTRO
.
EFFECT
POW
CRUG
Pee
te
eee
ee
ee
UP (+C#, +D, +D¥, +E, +F, +F#
TRANSPOSE Souk be cnen a )
|
KEYBOARD
PERCUSSION
|
35KEYS
ss
C—“*S™COCOCOCOCSCSCté‘C
MARCHICOUNTRY,
WALTZ,
JAZZ
WALTZ,
SWING,
GHA-CHA,
RHUMBA,
TANGO,
SALSA,
RHYTHM
(SELECTORS)
BOSSA
NOVA,
SHUFFLE,
BALLAD,
8
BEAT,
16
BEAT,
DISCO
1,
2,
SWING
ROCK,
FUNK
ROK,
SAMBA
LEFT/BASS TONE
(CONTROLES)
SYNCHRO
START,
START/STOP,
BALANCE
(DRUMS),
TEMPO,
BEAT
INDICATORS
FILL
IN
&
INTRO
METRONOME
ONE
TOUGH
PLAY
es
ee
ee
ee
Oe
ey
AUTO
PLAY
CHORD
ADVANCED,
BASIC,
BASS
&
ACCOMP
1,
2,
3,
4
PROGRAM CHORD PCC, RECORD*, CHORD COMPOSER (KEYBOARD) '§-, <
COMPUTER DS, —H, Gyr
Matsushita
Electric
industrial
Co.,
Ltd.
Panasonic
Hawaii,
inc.
Panasonic
Sales
Company,
oe
Central
P.O.
Box
288,
Osaka
530-91,
Japan
99-859
Iwaiwa
Street
Division
of
Matsushita
Electric
ec
nics
P.O.
Box
774
of
Puerto
Rico,
Inc.
Matsushita
Services
Company
Honolulu,
Hawaii
96808-0774
Ave.
65
De
Infanteria,
KM
9,7
50
Meadowland
Parkway,
Victoria
Industrial
Park
Secaucus,
New
Jersey
07094
Carolina,
Puerto
Rico
00630
3S56

SX-PR100 SX-PR200
eee
TEMPO, TRANSPOSE, PLAY SEQUENCER (PART, MODE NOTE, ERROR),
MIDI... eseeeseeees NORMAL, SEQUENCER TO EXT, MANUAL TO EXT, BOTH TO EXT,
MODE
SET
SONG
SELECT,
MIDI
CLOCK,
START/STOP,
PROGRAM
CHANGE,
LEFT
OFF
re MIN RANGE, PIANO TUNING, MEDLEY, FD (NORMAL 1, 2, PRO)
MIDI... eee IN, OUT, THRU
AUX IN uu... input level 500mV, 15KQ
L, R/R+L
TERMINALS LINE OUT ........... output level 1.5V, 600Q
L, R/R4+L
OTHERG...........00 DIGITAL DISK RECORDER CONNECTOR, PEDAL IN, PHONES,
AC IN, MEMORY CARD SLOT
OTHERS
POWER
SW,
MAIN
VOLUME,
TUNE,
INITIAL
KEY,
PEDAL
(SUSTAIN,
SOFT)
OUTPUT
20W
x2
25W
x2
SPEAKERS
16cm
(6-5/16")
x 2,
HORN
TWEETER x2
100W
POWER REQUIREMENT AG 120/220/240V 50/60Hz, AC 120V 60Hz (NORTH AMERICA)
121.30m x 81.9¢m x 53.5cm 137.8cm x 81.9¢6m x 53.5cm
DIMENSIONS
(Wh)
(47-3/4"
x
32-114"
x
21-1116")
54-114"
x
32-1/4"
x21-1/16")
NET
WEIGHT
58Kg
(127.9|bs.)
61Kg
(134.5lbs.)
ACCESSORIES STAND, AC CORD
**Common RECORD button is used for these buttons.
* Specifications are subject to change without notice for further improvement.
CONTENTS
@
PART
I
(INTRODUCTION)
CONTROL
PANEL
LEFT,
RIGHT
ARRANGEMENT
OF
CONTROL
PANEL........csssssssscseeeees
12
CIRCUIT
DIAGRAM
.....ccsssesssssescssssssecesesesessssessees
1-15
BASIC
FUNCTIONS
.....ccccccccsssssssssssssssasssssssessecseceeseeseeeeneees
CONTROL
PANEL
LEFT,
RIGHT
PARTS
LOCATIONS
yiccni
iin
tkaceasiieneattea
cathe:
.
GIRCUIT
BOARD
i)
sisiiieiiosciscasttectsalcadatinacae
1-19
KEYBOARD
RANGES......
MEVIGEMI
MANUAL
KEYBOARD
CIRCUIT
DIAGRAM
.....
1-22
HOW
TO
ASSEMBLE
THE
PIANO.....ssssssssscsssssscssscceseesee
1-5
MANUAL
KEYBOARD
CIRCUIT
BOARD..........
1-25
INSTALLATION
OF
SY-FD3
(OPTION)
....ccssccssssssssssssseeees
1-6
SS
BE
AMP
&
POWER
SUPPLY,
SAFETY
PRECAUTION...csssssssssssssssssssssssscsssssescensnsssessssesess
1-6
HEADPHONE
CIRCUIT
DIAGRAM
......ssssssssssee
1-28
DISASSEMBLY
PROCEDURE......s.cssccssessssscssesssssscsesessenne
Le
MREXSH
AMP
&
POWER
SUPPLY
CIRCUIT
BOARD...
1-30
MEASUREMENTS
AND
ADJUSTMENTS
ct
HEADPHONES
CIRCUIT
BOARD
......scsssssessseees
1-31
CONECTION
TERMINALS
.occccsecscccccscsscccssseesssensssessssseseeee
1-9
PRECAUTIONS
BEFORE
SERVICING.
........cccsscccsssssssseee
1-10
M@
PART
II
(REPLACEMENT
PARTS
LIST)
MIDI
IMPLEMENTATION
CHART
oencccccccscscccsccceccececesecene
I-12
REPLACEMENT
PARTS
LIST
(P.C.B. and Wiring Parts) ..........cccccsessseeseresees H-1
Mi
PART
TI
(SCHEMATIC
DIAGRAM)
EXPLODED
VIEWS
OF
CABINET
(SX-PR100)
......--..00000
1-8
WIRING
CONNECTION
DIAGRAM
ooscseccsccscccscsscccccneceeeee
I-1
REPLACEMENT
PARTS
LIST
BLOCK
DIAGRAM
(Cabinet
and
Chassis
parts)
..............0
MAIN
CIRCUIT
BOARD.............cccccsccsesseesssseeees
1-6
EXPLODED
VIEWS
OF
CABINET
(SX-PR200)
FD
CONNECTOR
CIRCUIT
BOARD............
s+
0-10
PACKING
%
sci.
doco
cetasSha
tila
shcdisscdoatiad
ass
assctectacsban
deluasssvindts
CURRENT
LIMIT
CIRCUIT
MAIN,
FD
CONNECTOR
CIRCUIT DIAGRAM ...... es csceeceseessesesssesteeetsenee I-11

ad
ARRANGEMENT OF CONTROL PANEL
4
MEMORY CARG
|
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| | ll || i | |
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TRANSPOSE PEDAL (pg ER er fe ut PEAY pce] |— RHYTHM. | LEFT vaass TOME RIGHT accor ae LAY.
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| | | | | T Teo ocd rp ee =| (eemey ce “Goa clavicuitan GUNAR Hane 9 92 ieee jE PANS) "Elona cuitaa sUNAR WARP viBeTONE ent :
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© SOSTENY = |
| ASS ceOMP— { oF Shay Marx bees JA, STRING SYNTH: = BASS ‘SUSTAIN KEY. PIPE JAZZ STRING TEN SUSTAIN KEYBOARG 1
MAIN VOLUME boa cual afl jal afojaloyay nase a | ENOING START" START/STOP FILL IW & INTRO ONE TOUCH PLAY METRONOME 0.0 0 OBEAT | ORGAN ‘agouste BRASS PERC ACOUSTIC. ELECTRIC CHOPPER SYNTH PEDAL SPLIT ORGAN ORGAN ensemaie BRASS TRUMPET SAX. CLARINET FLUTE “PEDAL PERCUSSION | CHORUS BASS ACCOM
MOV cccsveaanatt ueHe MAX I ° ° 3 ° ° ° ° ° LOW TEMPO FAST | 8 ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° 3 ° i
pias ; — Bn
== (oy Thal Ed ES Eases { ] } | ] Ez J Beh t (=o | Lod Eo) fe] Ee] { [ (e] let { ea)
a ara esc uannaarenerearc omer onecress MIN PIAND. ‘MEDLEY NORMAL) NORMAL? PRO’
(wane SE) ia TUNING REREAD UREN RETR
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° ° 2 |
v ' INITIAL yr Hl
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BASIC FUNCTION
@ MUSICAL DISPLAY
Display shows tempo speed and remaining strage
notes capacity which can be stored in the play
sequencer.
@ RIGHT/ACCOMP TONE
This section is used to set the voice and effects for
the right part of a split keyboard. Choose from 717
voices on the PR100/PR200. Available effects are
sustain, octave shift and chorus.
© LEFT/BASS TONE
Select a voice and effects for the left part of a split
keyboard, or for the whole keyboard when the split
function is not used. There are 16 voices for the
PR100/PR200. The sustain and octave shift are
available for the left keyboard also.
© Split function
The keyboard can be split into left and right parts for
which different voices and effects can be assigned.
The split location can be set at G2, C3 or C4.
© CHORUS
A CHORUS effect can be applied to give the sound
greater depth.
—
SOFT
SUSTAIN
|
|
|
ed
@ TRANSPOSE
Raise or lower the key of the entire piano with the UP
and DOWN buttons. The transposed key is shown
on the MUSICAL DISPLAY.
@ KEYBOARD PERCUSSION
Turning this button on transforms your keyboard into
a whole band of percussive instruments and special
sounds. The keys are picture-coded for quick and
easy selection.
@ BALANCE
The volumes for the RIGHT, LEFT, DRUMS, ACCOMP
and BASS parts are adjusted with their respective
A and VW buttons. No sound is produced if both
indicators are off.
© RHYTHM
Select a preset rhythm from the 9 x 2 matrix and start
it instantly with the START/STOP button. BEAT in-
dicators, SYNCHRO START, METRONOME, TEMPO
adjust and volume control (DRUMS) make playing
easy. And regular Technics features such as
automatic FILL IN & INTRO, ENDING pattern and
ONE TOUCH PLAY add spice to your performance.
ie
[1-2] | jes
AUTO PLAY CHORD
@
®
®
This feature is selected when the ADVANCED or
BASIC button is turned on. The bass and accom-
paniment are automatically produced when you play
a key on the left part of the keyboard. Four BASS &
ACCOMP buttons provide a variety of rhythmic and
melodic patterns matched to the selected rhythm.
PROGRAM CHORD COMPUTER
Store the chord accompaniment, rhythm sequences,
fillins, etc. of an entire song in the piano, then have
it played back automatically while you play the
melody. With the keys at the right end of the
keyboard, store whole, half-or quarter-measure
chords, specify repeat play, and more.
PLAY SEQUENCER
With this feature you can separately play and store
the right, left, accompaniment and bass parts for an
entire tune. Then have the whole synchronized
sequence played back automatically. :
PEDALS
Control the sustain and quality of piano tones with
the sustain pedal and soft pedal. Or you can
choose to activate the automatic rhythm or fill-in
with the soft pedal by using the PEDAL SELECT
button.
[1-3
® Digital Disk Recorder
*SY-FD3 (Option) |
ed
@ SUSTAIN PEDAL
On the PR100/PR200, the sustain pedal is a four-
stage pedal, and the length of the sustain is
controlled by the degree to which the pedal is
depressed.
@ SOFT PEDAL
The soft pedal can also be used as a SOSTENUTO
pedal.
@® MEMORY CARD
Record your performances or just the registrations
on optional memory cards. Recall and reset the
piano registrations—or have a whole tune performed
automatically—in just seconds!
@ DIGITAL DISK RECORDER SY-FD3 (option)
The Digital Disk Recorder allows virtual unlimited
storage and playback of your piano performances.
A long tune, or up to ten shorter tunes, can be stored
on each digital memory disk.

_PARTS LOCATION
Amp_&
Power
Supply
P.C.B.
|
AS
—
ia
Control
Panel
Left
P.C.B.
Power
Transformer
——
WAV
Nie
Main
P.C.B.
Power
Switch
Conirol
Panei
Right P.C.B.
Horn Tweeter,
SP4 Horn Tweeter,
Speaker j . '
46cm 80 — oe Me Seeaker
(Inside)
ue
HP
Headphone P.C.B.
(Inside) |
[Photo-1]
KEYBOARD RANGES
C¥41 Fas Atso; D#55 Gteo ‘Ces F#70 At 7s
{ { 1 i i i i 1 '
' 1 u i
T 1
'
t
yl
1
ed
1
i
Pay
:
‘
ee
Cae
1
'
i
i iC#5; F*io'A®ia) ;D#19 iG#2a, iC#2o! F #34 1A®38! | D843 |G#ag! (C%53' F*%58!A*%621 'D%67 'G%72! iC#77' F%82 |A*es
8va
ze Popes ae |
© ie q SpE a
: aaa a?
a 7 ~ a
Ss
4
t
i '
4
7 Middle C ‘ ‘ } i]
'
i
|
}
i]
' ' i ! |
t ‘
H i 1
o = u n a
e
a
Sel
as
eomeree
area
e
coms = H a = =
—
2
eo
! ' :
a
'
i
!
1
;
1 '
Ld i C 4 1 i i ‘
8
va
bassa
:
i
i
:
4
/
i
j
i
'
i
i 1 t j ' \
| 5; i i
i
'
i
\
|
i
; : ! i
i
\A®2, D#7. G#i2 iC#i7 F#22 A*26! D#31 G#as ! i i D879 Gag |
‘
'
t
1
1
1
:
t
1
1
1
:
i
'
t
'
‘ f~
At} Ca! Es }Gi1 Bis | Dig! Fat | A2s | Cae | Es2 1G36 | Bag | Da2| Fas | Aaa! C52 'Ese | Gso | Bes | Des | Fea | A731 C76 | Eso | Ges | Bar |
Bs De Fo Ais Cie E20 G23 B27 Dso Fas A37 Cao Ess G47 B51 Dsa F57 Aci Ces Ess G71 B75 D738 Fe: Aas Cas
is for PR200 only
[1] Attach the side panels to the pedal box
using the for black bolts.
Set the piano unit on the stand, and
secure it to the stand with the four
brown bolts.
Side panel
i
i
|
|
Side panel
[Fig. 3]
Place the stand upright, and fit the
crossboard onto the L brackets from
above.
Secure it with the four black bolts, and
cover the bolt heads with the caps.
Sensaraits by Maco sated in Bee
le
\ gs
|
|
| |
| |
if

INSTALLATION OF SY-FD3 (OPTION)
¢ Make sure that the power to the Technics piano
is turned off.
¢Remove the cover from the connector unit.
¢Completely insert the right and left guide rails
into the grooves of the connector unit.
¢ Affix the guide rails to the underside of the piano
with the four bolts ®.
Insert the Digital Disk Recorder (SY-FD3)
along the guide rails, and push it in firmly and
completely.
* Secure the Digital Disk Recorder to the left guide
rail with screw ©.
SA F ETY P R EC AUTIO N (This “safety precaution” is applied only in U.S.A.)
¢ Safety Precaution
. Before servicing, unplug the power cord to prevent an electric shock.
. When replacing parts, use only 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 shock hazard.
OAbhohd =
* Insulation Resistance Test ;
1. Unpulg the power cord and short the two prongs of the plug witha
jumper wire.
2. Turn on the power switch.
3. Measure the resistance value with ohmmeter between the
jumpered AC plug and each exposed metal cabinet part, such as
screw heads, connectors, contro! shafts, handle brackets, etc.. cae
Mesurements should range from 4MQ to infinity to all exposed nai
parts.
Ohmmeter
Resistance=4MQ to

DISASSEMBLY PROCEDURE
[1] How to remove the keyboard cover
© Left shaft slide to inside with tool as shown
; Fig. 8-©.
@® Lift upward left side of keyboard cover as
shown as Fig. 8-@.
® Remove the keyboard cover slide it leftword as
shown Fig. 8-@. ‘
[2] How.to remove the top cover
*Remove the keyboard cover according to
procedure.1. :
@ Remove the 2 Screws ® and 2 screws © which
fasten the top cover located under ‘the shelf
board.
@ The top cover can be opend by lifting.
r=
mM HN Ae
[3] How to remove the keyboard
-©Open the top cover according to procedure 2.
‘@ Remove the 8 screws @ which: fasten the
keyboard.
mmm NS
[Fig. 10]
1-7

[4] How to remove the keys
Remove the keyboard according to procedure 3.
© Lift up the claw as shown Fig. 11-©
@ The key push to forward as shown Fig. 11-@.
Key can be removed from chassis.
® Lift up the key and take it out from chassis.
Note:
«In the case of disassembly black key remove the
right and left white key at first and after that
black key can be removed.
Reassembly method
©® Insert the spring in to the hammer notch with
the tang pointings-up as shown in Fig. 11-©. :
@ While holding the. spring against the hammer, [Fig. 11]
place the rear edge of the spring in the notch in-
side the rear edge of the key.
® Slowly push the key down into the slots in the
chassis. .
[5] How to remove the printed circuit boards
FD Connector P.C.B. (Fig. 12)
Remove the 3 screws © on the connector unit.
Main P.C.B.
¢Remove the 6 screws @ on the Main P.C.B.
(Fig. 13)
¢Remove the 3 screws @ on the back of the top
cover. (Fig. 14)
*In the case of remove the P.C.B. except the
above-mentioned, release the clows of P.C.B.
holder and remove the screws on the each
P.C.B.
[Fig. 12]
P.C.B. asm P.C.B.
CPL
OOOO OO ©©
6 [al
[Fig. 14]
[Fig. 13]

MEASUREMENTS AND ADJUSTMENTS
@ Measuring Equipment
© Oscilloscope 20MHz, 10:1 probe ¢ Oscillator, 1kHz sine wave, O~10Vp-p, 600
¢ Capacitor, 50V 1F (ECEA1HNO10S)
ADJUSTMENT ADJ. CONNECT METER
ADJUSTMENT MEASURING CONDITIONS EQUIPMENT POINT METER TO READING
BBD
bias
any
position
Oscilloscope
P.C.B.
VR2
|
1c53-@
Photo-A
(CHORUS) and
oscillator
. Connect the oscilloscope to IC53-@ pin of circuit board.
. Input 1kHz sine wave to IC52-@ pin by oscillator through capacitor of less than 50V 1pF.
Then, adjust the output level of oscillator until the sinewave on the oscilloscope is clipped.
. Adjust VR2 so that the output waveforms on the oscilloscope are evenly clipped at top and bottom.
O22 vwWOV. OS assdiv ‘O.2 WOW OS espiv
- [Photo-A] ~~ [Photo-B]
CONNECTION TERMINALS
(On the rear panel)
TUNE MDE PEDAL IN AUXIN, LINE OUT
ca ihe pull nN Boo 0 Boo OU
3) 00 00
MTUNE i MID! (Musical Instrument Digital Interface)
During an ensemble performance with other MIDI is standard specification that enables connec-
instruments, fine adjustments of pitch can be made tion to equipment such as synthesizers and personal
using this knob. computers. Data transmission and reception are
possible between the Technics Digital Piano
M@ PEDAL IN instruments provided with MIDI terminals.
Connect the cord from the included stand to this ; oe at
terminal. IN: The terminal that receivers data from exter-
nal equipment.
Wi AUX IN (input level 500 mv, 15KQ) OUT: The terminal that transmits data from the
piano to external equipment.
The terminal that transfers data from the IN
terminal directly to other equipment.
Other instruments such as a rhythm machine or THRU:
sound module can be connected to the piano so that .
the sound is output from the piano.
To receive monaural sound, connect instruments to
the R/R+L terminal. ¢ Use a 5-pin DIN cord flese than 15m long) for these
connections.
ME LINE OUT (output level 1.5V 6009)
By plugging into a Technics Tone Cabinet or a high-
power amplifier, the sound can be reproduced at
high volume. (Use the R/R+L terminal when output-
ting monaural sound.)
(13)

PRECAUTIONS BEFORE SERVICING
@ Precautions for measuring of the output waveforms.
1. Please set the INITIAL mode before measurement.
e
INITIAL
mode:
Press
the
FSC
button
to
turn
it
on,
and
then
press
the
INITIAL
key
on
the
keyboard.
2. After INITIAL mode, set the measurement conditions as each check points.
3. The waveform was measured by ‘National Digital Storage Oscilloscope VP-5730A”. Therefore the waveforms
of musical tone signals shown may somewhat change due to variation of timing of measure.
4. The voltage shown in the photo is 1/10 of the actual value. However, the actual voltage is 10 times of as shown
in this photo.
5. The tone signal output varies with the level of key pressing force.
In this measurement, the waveform obtained with maximum key pressing force is shown.
However, the output level and waveform may very, depending on the timing and measuring instrument and other
conditions in the measurement.
important safety notice:
Components identified by /\ mark have special characteristics important for safety.
When replacing any of these components, use only manufacturer’s specified parts.
@ Symbolic Marks
The symbolic marks for resistors and capacitors, which are used in the circuits for this Piano, are as shown in
TABLE-1 and TABLE-2.
1. RESISTORS
¢Resistors
without
symbolic
mark
are
FIXED
CARBON
FILM
RESISTORS
(ERD-type).
All
resistors
are
1/4WATT,
+5%
TOLERANCE
unless
otherwise
designated
in
the
schematic
diagrams.
(TABLE-1)
SYMBOL
SPECIFICATION
SYMBOL
SPECIFICATION
®
Fixed
Carbon
Film
Resistors
®
Fixed
Metal
Film
Resistors
|
“FLAME-PROOF”
(ERD—F—type)
“FLAME-PROOF”
(ERX—type)
Fixed
Wire
Wound
Resistors
Fuse
Type
Fixed
Metal
Oxide
Film
“FLAME-PROOF”
(ERF—type)
Resistors “FLAME-PROOF”
Fixed
Metal
Oxide
Film
Resistors
Fuse
Type
Fixed
Carbon
Film
Resistors
“FLAME-PROOF”
(ERG—type)
“FLAME-PROOF”
(ERD2FC—type)
(ERQ—type)
aa
Fixed
Metal
Film
Resistors
(Precision
and
High
Stability)
(ERO—type)
@
)
2. CAPACITORS
¢
Capacitors
without
symbolic
mark
are
POLYESTER
CAPACITORS.
(ECQM-type,
ECQG-type,
+
10%
Tolerance)
©
Polarized
capacitors
without
symbolic
mark
are
Aluminum
Electrolytic
Capacitors.
(ECEA—type, +20% Tolerance)
(TABLE-2)
SYMBOL
SPECIFICATION
TYPE
|
@
-
|
Non-Polarised
Electrolytic
Capacitors
ECEA—N—type
2
Oo
Non-Polarised
Electrolytic
(for
Network
System)
ECEA—Y—type
|
®
|
Aluminum
Electrolytic
Capacitors
(Miniature
type)
ah
opal
ae
te
S)
Aluminum
Electrolytic
Capacitors
(Low
leakage
current
type)
ECEA—M—type
|
oO
|
Temprature
Compensating
Ceramic
Capacitors
ECC—type
>.
1
High-Dielectric
Constant
Ceramic
Capacitors
ECK—type
aaa
Metalized
Polyester
Film
Capacitors
for
Across
the
Line
ECQ—EW—type
are
Aluminum
Electrolytic
Capacitors
for
smooting
Circuit
ECES—type

i Symptoms which appear to be signs of trouble
The
following
changes
in
performance
may
occur
in
the
Technics
digital
piano
but
do
not
indicate
trouble.
Phenomenon
When many keys are pressed at the
same time, not all of them sound.
When
the
AUTO
PLAY
CHORD
is
off,
the
maximum
number
of
notes
wheich
can
sound
simultaneously
from
the
combined
right
and
left
keyboards
is
12.
When
the
AUTO
PLAY
CHORD
is
on,
the
maximum
is
8
notes.
Sustain
does
not
work,
even
when
the
|
Sustain
is
set
separately
for
the
right
and
left
sections.
Turn
the
sustain
pedal
is
pressed.
SUSTAIN
PEDAL
button
on
for
either
or
both
parts.
¢When
a
PLAY
SEQUENCER
button
is
on
and
a
song
without
any
rhythm
is
stored,
the
rhythm
does
not
start.
¢When
the
clock
mode
is
set
to
MIDI
CLOCK,
the
rhythm
does
not
start
if
no
MIDI
clock
signal
is
received
from
another
instrument.
When
using
only
the
piano,
return
the
clock
mode
to
the
internal
clock,
for example by turning off the POWER once.
The rhythm does not start.
Selections
must
be
made
within
5
seconds
after
the
RECORD
button
is
pressed.
After
5
seconds
the
RECORD
button
turns
off
and
no
further
storage
is
possible.
? ‘
Nothing is stored in the PROGRAM
CHORD COMPUTER or PLAY
SEQUENCER.
Nothing is ‘stored in the PROGRAM
CHORD COMPUTER.
When
storing
chords,
press
a
measure
key(
FA,
FH,
BH
)
while
holding
down
the
chord.
Be
sure
that
the
chord
is
not
released
—
until
after.
the
measure
key
is
pressed.
a
When
the
AUTO
PLAY
CHORD
is
off,
the
BASS
and
ACCOMP
do
not
sound;
only
the
rhythm
changes.are
performed.
To
play
back
the
accompaniment,
select
an
AUTO
PLAY
CHORD
mode
(BASIC
or
ADVANCED).
When playing back the PROGRAM
CHORD COMPUTER, the accompani-
ment is not performed. ie
¢
Storage
is
not
possible
when
the
Fsc
button
is
on.
Turn
it
off
before
storing.
elf
another
PLAY
SEQUENCER
indicator
is
lit,
press
the
START/STOP
button
for
automatic
performance
of
the
stored
part.
Another
part
can then be stored.
The RECORD and PLAY SEQUENCER
indicators are flashing slowly, but
storage is not performed.
When playing back the PLAY
SEQUENCER, a fast rhythm
tempo becomes slower.
This
may
happen
when
an
extremely
large
number
of
notes
are
programmed
to.be
played
at
one
time..
Slow
down
the
tempo,
or
decrease
the
number
of
notes
to
be
played
at
one
time.
When
performing
the
playback
operation
from
a
memory
card,
the
piano’s
internal
memory
changes
to
that
stored
in
the
memory
card.
To
preserve
a
song
in
the
piano’s
memory,
store
it
in
a
memory
card.
When the operation to play back from
the optional memory card is performed,
the contents of the piano’s internal
memory are erased.
The normal sound is not produced
when the keys are played. Instead,
the sounds from rhythm instruments
are heard.
When
the
KEYBOARD
PERCUSSION
button
in
the
RIGHT
TONE
block
is
on,
the
sounds
of
the
percussive
instruments
indicated
above
the
keys
are
produced.
To
return
to
the
normal
piano
sound,
select
a
different
tone
in
the
RIGHT
TONE
block.
,
¢Press
the
FSC
(FULLBAND
SETTING
COMPUTER)
button
to
turn
it
on,
and
then
press
the
INITIAL
key
on
the
keyboard.
lf
the
buttons
and
keys
do
not
return
to
normal,
turn
off
the
POWER
once,
then
on
again.
Turn.on
the
FSC
button
and
press
the
INITIAL
key.
:
No
sound
is
produced
when
the
keys
No
sound
is
produced
with
the
LEFT
and
RIGHT
indicators
in
the
are
pressed.
BALANCE
section
are
off.
.
Press
the
A
buttons.
The
keys
on
the
left
keyboard
do
not
When
on
TONE
indicator
is
lit
for
the
left
section,
the
left
keyboard
keys
sound.
do
not
sound.
Select
and
press
a
TONE
button
for
the
left
keyboard.
The buttons, keys, etc. malfunction.

e Auto Play Chord.................Basic e: Rhythm cee ses ae © Right TOMG vec eeccccceeceesseeeees i
° Bass & Accomp a) * Balance (all) ............... tee ° Balance (Right) a
© StartlStop ccscesesssecccseessnssssens art * Ckey...ON ° Tempo... J © Keyboard 0c ccsccucicc:
@ Drums
@© Accomp
nite ee GT
[ ie
Bee =
}
® APC...Basic ¢ Rhythm...Salsa e APC...Basic * Rhythm...Disco I eSPAythM ee eos March
® Bass & Accomp...3 ° Tempo... | =50 * Bass & Accomp...2 * Tempo... | =120 * Balance (Drums).................Max
e Balance (Accomp)...Max °C key...ON * Balance (Bass)..Max ° C key...ON * Tempo... {J =120 © Start/Stop...Start
® Start/Stop...Start ® Start/Stop...Start
@ Gate Control (Q7) @ Gate Control (Q8) ® Gate Control (Q9, Qi0)
Chorus
ON
OV
¢ Right Tone. @ Right Tone... eee: i
e Balance (Ri ey...C52 ® Balance (Right)...Max ° Key...Cso
® Chorus...OFF ® Main Vol....Max e Chorus...OFF © Main Vol....Max
[(W-9 |

meee =FD CONNECTOR CIRCUIT BOARD
1
2
3
4
5
_ Current limit circui
A © RI 2wo.22
Cc EA | - A® R2 2wo22 FDCN
CN8 CN2
ae.
5
x
x
a
te)
+
or
D
XPG144011
E
NOTE:
° TRANSISTORS
Q1,2: 28B941P
FE

MIDI IMPLEMENTATION CHART
[ PCM Digital Piano ]
[ SX-PR100/SX-PR200/SX-PR300 ] (Transmitted)
Basic
Channel
Velocity
Control
Change
Prog
Change
Default 1~14, 16 | 1~14, 16 | 1~14, 16 memorized
Changed 1~14, 16 | 1~14,16 | 1~14, 16
Default OMNI OFF POLY MODE
Messages a.
Altered
(PR100) Changes depending
True
voice
(PR200/PR300)
on
the
position
of
the
MIDI octave shift
Note ON
Note OFF
balance
sustain pedal
sostenuto pedal
soft pedal
auto play chord
bass & accomp
ending, fill in & intro
oct shift
chorus
Refer to MIDI manual
regarding program change
True
#
number
System Exclusive
System
Common
System
Real Time
Aux
Messages
Mode 1:
Mode 3:
Song Pos
Song Sel
Tune
Clock
Commands
Local ON/OFF
All Notes OFF
Active Sense
Reset
Whether or not the data for each of these items is transmitted
can be set.
‘OMNION, POLY +~Mode2:. OMNION, | MONO: Yes [1-12]
OMNI OFF, POLY Mode 4: OMNI OFF, MONO xX:No
| System Exclusive
[ SX-PR100/SX-PR200/SX-PR300 ] (Recognized)
Basic Default 1~14, 16 | 1~14,16 | 1~14, 16 | 1~14, 16 memorized
Channel Changed 1~14, 16 | 1~14, 16 | 1~14, 16 | 1~14, 16
Default 3 3 3 3 3 OMNI OFF POLY MODE
x > ae x x x
Function. .
Mode Messages
Altered
Note 1~126 | 1~126 | 1~126 | 1~126 chpnges depending on jie
Number True voice 21~119 | 21~119 | 21~119 | 21~119 er eee
or transpose control.
Velocity Note ON O
Note OFF V= = N= v= 5
balance
sustain pedal
sostenuto pedal
soft pedal
auto play chord
bass & accomp
ending, fill in & intro
oct shift
chorus
Control z
Change
Refer to MIDI manuat
regarding program change
number
O
"OX start/stop
O
x x x x x
O O O O x (123~127)
O
i
@
ee
oe
ee
Whether
or
not
the
data
for
each
of
these items
is
received
can
be
set.
Song Pos
Song Sel
Tune
System™
Common
Clock.:
Commands
System
Real Time
Local ON/OFF
All Notes OFF
Active Sense
Reset
Aux
Messages
[7-13]
—
Mode1:
|=
OMNION,
POLY
Mode2:
=
OMNION,
||MONO
O:
Yes
Mode
3:
OMNI
OFF,
POLY
Mode
4:
OMNI
OFF,
MONO
X:No
® This
product
adheres
to
MIDI specifications
as published
by
the
Japan
MIDI
Association.

WIRING CONNECTION DIAGRAM
fl- 1
1
2
3
4
5
6
7
8
9
MGMEE CONTROL PANEL LEFT
sP4
Horn Tweeter, I62
[eKo)
a
WI2 SWKGI4I9SSA
SP2
Horn Tweeter, [60
WI4 SWKGI65SSA
W6 SWKGO539SSA
WS SWKGO6I30ZA
AMP & POWER SUPPLY
Power SW
S|
=
-] |
U wi
SPI, 16cm, 8 8
n SWKGOSII6ZA
CNG CNS SP3, l6cm, 82
[+5 }) CNI
Le | \
CN7 rst | [RxD]
P [ost] re]
+15
[de
2]
[os
s|
scK
|
[oe3; [oad]
= 15 | (pea| [0a3] [eB |
slrmvil
[ops|
|
pea]
r+
5
|
086
[OB
t|
3
{f
€
|e
Wii
SWKGOBIIGZA
Da?
DBO
a
[EPst | =
, CNS , CNS @
TI
re
|
|
PE]
foes
8
POWER
W7
SWKG
O6I28SSA
ry
=
Te
|
7
re} Ue [106 | é Shear
TRANSFORMER
3Le
|
ee]
lf
ele
Is
>|
PEDAL
=
Wi3_
SWKGI5I6STA
Hee
is
ie
ee
ae
WS SWKGO4I4ISSA
WI! SWKGOBIIBZA
we
SWKGQ3II7ZA
WS SWKGO6GI29ZA
ws
{SWKGO4145SSA)
-[M) orea only
4
(SWKGO4I45SSA )
05] area only
HEADPHONES
MIE MANUAL KEYBOARD
EET ae ee
rligiolx
Plu fala alelsele
+ jaja Slofolal=
5
J 01
POWER
INDICATOR
PEDAL BOX
Soft Pedal Sustain Pedal

BLOCK DIAGRAM
1
2
3
4
5
6
7
8
9
10
MANUAL KEYBOARD CIRCUIT
—— MAIS NOt. POWER INDICATOR
Switches & LED'S
Gate Array Switches @& LED'S
-
Fee toe oye fg tee ee ee om, om 71
| SY-FD3
A DIG oa ot . Switches
fonda nl 3
' p ee =
SSS SSS SSS ie oe Att
| DBO~
FD | EERE,
CONECTOR [ae CONTROL PANEL LEFT CIRCUIT CPR CONTROL PANEL RIGHT CIRCUIT
|
|
|
QE cL. & FUSE
080 ~ 087 ikea
Data Bus (080 ~0B7) J
—— oxo SEF SS) _
nae Gate Arr
a
ae
TI
O07
CN
|
CPAO
ay
ee
ee ||| sles
CN6 CNIS uw!
TEMPO CONTROL
MEMORY CARD
CNS
z
5
pea
| Current |
é Limiter is
ENE MAIN ciRCUIT
C
LMVO, RMVO
Tempo Control LMVI, RMVI
| [080 ~ 087
AO~ Al4
9
080~ 087
RXD, EOB
SCK, TXD
Ic2i-1
1€ 22,27
1C20,IC2I-I 1C 29~36 IC45 IC49-1 1C55-1
D/A Converter
Octo Bus
LSI.
R/L TONE
ROPO ~7, WRPO~7
J
=
22
WAVE ROM
Th
Tone Generator
Address(AO ~Al8)
(SUB CPU)
Phase
Inverter
Analog Buffer Memory
INTI
1C37~44
PBO
PB?
Microcomputer
|
Gate Array
(Main CPU)
~PD
R/L TONE Low-Frequency Clock
E
Dera
(DO~
O15)
oe
Oscillator
Generator
‘ACCOMP
1c25
1C26-1
1C26-2
1C27,Z8
IC 47
Low - Pass
Filter
Low - Pass
Filter
Microcomputer
Generator LSI.
D/A Converter
Tone
RHYTHM
(36h)
(16K bit)
AB~AIG
Ic7 ics
WR wR RAM RAM WR
(16 K bit) (64Kbit)
Ri RO
Analog Buffer Memory
V
MIDI (6 o
THRU 2 4 9,
|
Il-3 Il-4

=L LEFT. CIRCUIT ; ems CONTROL PANEL RIGHT. CIRCUIT
voy
5
:
_6
7
8
.
9
10
11
12
13
14
AMP & POWER SUPPLY CIRCUIT
si
POWER Sw
[<a] dl, 02
Lt D3~D6 Q1~Q3
Key Switches
fz
AC IN T] )
1C2,Q4,D010
+5V> Switching
Regulator
pe vU
HEADPHONES
MAIN
VOL.
;
POWER
INDICATOR
POWER
Switches
&
.
LED'S
Switches
&
LEDS
DI
>
()
TRANSFORMER
+15V
Regulator
i)
=
;
[we
|i
|.
Data
Bus
(080
~
087)
080~D87
080
~DB7
“Gree EER RPE PEAT
I | | es
[—erao s|[.]{ SS cPao
-I5V Regulator
aQi2
Qi
R/R+t
029,R20 AUX Amp 1
R211,CiS7, =.
Reh
fm nr R/R+L |]
SPI
LMVO, RMVO
LMVI, RMVI
SPL i
SP2
Ic2i-1
1C22,Z27
1C20,!IC2!-! IC 29~36
f
Analog Buffer Memory
V ici-2 ¢ten
AMPL
D/A Converter
LSI.
(Reh)
ICi-1
RMVO
Deto Bus (SDBO~SDB7)
Dynamic Noise
Reduction
Low — Pass
°
etc 8/2
ROPO ~7, WRPO~7
Tone Generator
SROI, SWRI
Address(AO ~ Ai8)
(SUB CPU)
2
Inverter
LINE OUT
r
—=
1C37~44
Sea ey
Microcomputer
ic5!
AUX
Low - Pass -
_ Filter
(3eh) Filter
Generator LSI.
Tone
256
K
bit)
:
:
ROPO~7,
WREO~T
|
C=?
mz
x F
CNI
f Headphone
=
(6cm,8N
Horn Tweeter
R/L TONE Low-Frequency Clock SP4
Dota (00~ 015) ; a Oscillator Generator Horn Tweeter
fe
ACCOMP
«
Blaial
1c25 IC26-2 L
IC26-1
1C27,Z8
.
SP3
IC
47
t6cm,8N
contsepamoneennonyanest

sx ae) SACD CBS EE PA AN EER REA I SMI
MAIN CIRCUIT BOARD
nas
;
a
elie
*
P.C.B.
Comparisi
on chart
Area Model No.
P.C.B. No.
Jumper Wire
| 22 (1C5-@ pin~GND)
| SXPG142064
Oo
Circuit view on top of P.C.B. | Sx-PR100
(MI SX-PR200
SXPG142051
an aie
SX-PR100
SXPG142031
A
Others
|
ex-pR200
SXPG142021
oe eo eee
,r,rrr—“(iw*sOCOSCSSCSCisi‘é‘C‘éCOC
& Se ee aN
@® Tempo Control @ Sustain
«Tune
b sectetetteeeeeence OV
5
F CONTEL cece F25V
§
=50 OV OFF 2 OV
|
é
,
=
300
oc.
FOV
MAX
cies
TOV
10
® SX-PR100
* Products for [M1 area SXPG142061
* Other areas SXPG142031
woo oo
So
ee

12
* P.C.B. Comparision chart
@ SX-PR200
Jumper
Wire
®
SX-PR100
Area
|
Model
No.
P.C.B.
No.
22
(105-0
pin~GND)
|
sbice
ee
SXPG142061
SaveEe
Pica
-
SX-PR100__|
SXPG142061
roducts
for
[
my
=SXPG142061
| |
SXPG142051
|
SX-PR200
|
SXPG142051
:
Others
LEEERI00
|
SXPG
142031
x e
Other
areas
Selene
rlikh
SXPG142021
exprooo | sxpaiaozt Ok
Q = oo - nm
¢ oo nnn aw S
GSI
22 (beet eo
re
0
fo ee
cone Gre
1s.
a
-
as vo OB syp
NOTES:
°1C’S
IC1:
IC2:
IC4:
165, 11:
IC6:
1C7:
1C8, 14:
1C9, 70:
1C12:
iC13:
IC15:
1C16:
IC17:
1018, 23:
IC1:
IC19-{ C5.
1C20, 25:
1C21, 26:
IC22, 27:
1C24:
1C28, 45~50,
53~57, 68:
IC29~44:
1C51:
1C52:
1C58:
13
SVIGM74LS07
SVIGM74LS05
SVIGTLP513
SVIG7810HCW
SVIGM603A114
SVIG5R300AX1
SVIGD446C25
SVIGD446415L
SVIGTC40H373
SVIG2R300BX1
SVIGTC40HO004
SVIGTC40H374
SVIGTC40HO00
MN6635
SVIGU3C04203
SVIGU3C04204
SVIGBA9221
SVIGM5238L
SVIGT74H4051
SVIGU3C04165
SVIGM5218L
SVIGM74H 4066
SVIGMSM4011
MN3009
SVIGLM1894N
¢ TRANSISTORS
Q1~3, 5:
Q4, 6:
Q/7~12:
e DIODES
D9~12,
15~22,
24~26, 29:
© POWER ..ecsesecceeneecceeseetseseeeree ON > OFF
2SA1015-GR
28C2320LFG
28J105GR
MAI65TAS
ol VAD 0.5 S/DI¥,
it Bhs ten its efi
14
ae
LPP IS IP EIPT IG SP
ig '
e Right Tone..
° Balance (Right)...................Max
® Keyboard oo C52
e Right Tone.......
* Balance (Right)..........02. Max
© Keyboard ......5.ccccccccseseeceeeees C52

FDCN MAIN, FD CONNECTOR CIRCUIT DIAGRAM
2
3
4
5
6
7
8
Renee ae sere MIMGEM (CN 1) GIMH (CN 1) EGiicns)
= = - os 1 ea ar, a eT a
Main]
|
|
Teecew
ee
:
bee eee
EEEBGBa
©
10
° CABEVIO
a
ray
+15A
ee ee Be
es ak Ge HR
Thy
C188 0.047
KH
C189 0.047;
KH
C190 0.047
KH
Ci9! 0.047
HHI
C47 evil
°
1
2
3
4
5
6
7
8
3
10
Ht
°
1
2
°
1
2
3
4
5
6
7
8
9
> N
(2)
z
1K
RB 330
R2
RIO 2.7K
IoC4 0.047
KH
Tone Generator LSI
aa <1 (Tx0)
O
| | 2 (scx
Pee fr
Address Latch
MEMORY CARD
> 5
a
° oC
ne o
° £ 2
RI3 a70z = 3
bd no
= > nee
eal
RIS
10K
a
°
ee
44
(12)
-
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