Technics SX-PR270 M User Manual

BLOCK DIAGRAM
1
EQISN MXLEEN «MANUAL KEYBOARD CIRCUIT
KFO~KF3
KSO~KS3
Gate
JACK CIRCUIT
| )
° oo
SusT
° oo
oo
PEDAL IN
SOFT
MIDI THRU
MID! OUT
IN
MIDI
IN
AUX
LINE OUT
2
Array
KBOO~kB2!
3 4 5 6 7 8 9
CONTROL PANEL LEFT CIRCUIT CONTROL PANEL RIGHT CIRCUIT
LCD CIRCUIT
MUSICAL DISPLAY
DIGITAL
VRE
MAIN VOLUME
DISK RECORDER
FD CONTROL
FD =: CONNECTOR
+5
——— Switches & LED'S
see
Q1~Q4
Kod
ROO~ RD4,ROB ~ e010
2° IK bit ROM
Bi ol cS SK
LED Driver
~ 087 P
VAL,ROY|
000~D010, 0012, D0I4, DOIg
tn
o
ra)
t
°
o
ro)
00I8 ~ 002!
Doto Bus
ID
Dato
Bus
ft
2 ee)
rey
Switches & LED'S
10
ces
oB¢
~0B8
HEGH AMP & POWER SU
g
=
=
&
=
S
Ic
'
« 1024 50 = = 2,9
+5T °
:
aa
Sisg
-
devs
+5V
Swit
Transceiver h- +5V NG Regula
a
Qi
SNS
t
oIR
8
nt
+5TD
7
2 o Bus 080 ~0B7 Hie 3 1c3
486 +15 +15 +15V Regt
he al cal =
15
1C27 -15A -I5V Regt
Address
Bus
DAO~
DAT
+5DA
pasclotee
z
m
1C26 >. a z
0, cs)
504 pty
o pabeks ae Regulator
Sm
cas
:
2a
eo
3g
=
bas
SUML
Fs
256Kbit
256Kbit
Se
SUMR
Dynamic RAM Dynamic RAM ee
0@1~De4 091~004 a 6 ONRR
c=) oa
~DO3_ Data = 007:
DI~D3, C26
mory
+58
Back-up
Circuit
2 ICI7 mM
-
IC18-1
3
B
:
v1
es
3
cS
~YT
AMP!
ae
Ss
& 3 z= =
7
5
=
ci
23
.
S
°
=
is
me
°
$
es
in
fa
7
° iS = 1cie-2 Py fo
-_
=.
=
S
e
AMPR
as
s
a YI = z
~YT
ans
3
“wee
OUTSLO
~
OUTSL2
AUX
AUXL
AUXR
LOL
aie
(0
J
[roe
RES
Address Bus
Generator
Q Leh AUX el
Amplifier
Rech AUX Amplifier
RAO~ RAIS
Tone
WAVE ROM
(1 6Mbit)
WAVE ROM
(C16Mbit)
WAVE ROM
( 8M bit }
1C10-1,1C10-2,D4,06
Reset
Circuit
OTO~ OTIS
256Kbit RDO~RODIS
Pseudo
Static RAM
Accomp
Data ROM

Technics SX-PR270 M Specifications

General

Brand	Technics
Model	SX-PR270 M
Category	Musical Instrument
Language	English