Technics SX-PX107 Service Manual

BLOCK DIAGRAM
1
mum §=Tone Signal
-2
a
=z
Q
=e
Sk
5
=°
2
MANUAL KEYBOARD CIRCUIT
Bi
IK bit ROM
cs sk DO
ame Control Signal
Key Switches &
DBO DB7
acemes
ACK
MXM MAIN CIRCUIT
Diodes
Gate
Array
Switches
DIO~ DIE I
RDO ~ ROZ. RDG, RD7, RDY, RDIO
TSO ~TS3
DOO ~ po2!
LED Driver
& LEO’S
DOO ~ Do2!
IC2~1C4
Buffer
LED
Display
ee ee
of & CNG
<z a
°
o
z
et
.S)
Li
DBO~
DB7
aL
Q7
IK
Ty
1C1O
(
cit
1)
iE
he
C12
ICI9-1
tct
Digital
Dol
DATA
VAL,
ROY
Signal
Di
&
-
“|
Processor
“t
i/7v
Converter
~
Ala
|)
REQ
'c2
igi
D/A
IDE
~1/016
Converter
a
DOO
~
Dols
Sa
ees
|
eee
LL
ICI5-3
1C14
——
a
5 a C13
a ICt9-2
JACK
CIRCUIT
s
ox
5
DATA
a rr
05,04
E
i=
SOFT Reset 2
“
rn
cath
ee
al
o 0° —_
00
eek
SUST
ry
ees
ae
|
ie
is
=
ais
tte
OUTSLO.
JK2
7
o
Tone
Q3 sosu
=
K—
Tone
+5
Generator
0
-0"'0)
q
oO
ae
Generator
Oo,°0 SUST
°
er
PTO~
PT2
an
x20
Dota
Bus
~A3
N
:
[
oO
Q2
5
1c4
MTXD TXD
°
°
<]
+
be
ett
or
Wave
ROM
Wave
ROM
02
Psu
|_Msns
SE
OR
OE
D5,6,8,
C26
(16M
bit)
(16M
bit)
ROM
Ql
(2M
bit)
Memory
is
Back
Up
ROM
Wave
ROM
uke
Addfesi’
ous
(IGM
bit)
(16M
bit)
5 4
°o
<<s MRXD MRXD
° ° 2s tt >|
5° 2§
H-3
VRI
MAIN VOLUME
c
VOLL VOLR
SUMR SUML
10
N8
Q1,2,D02,3,9
PMUT
aS Y
+15y «———_—__|
Mixer Amp
ic2o-!t
1C 20-2
Sv
Regulator
cNI
CN3
LOR
AUXL
AUXR
CNiO
I]
(i

Technics SX-PX107 Specifications

General

Brand	Technics
Model	SX-PX107
Category	Musical Instrument
Language	English