Technics SX-KN1400 - Page 29

MIBLOCK Diagram
—
Tone
Signal
IcPrR
fe}
cPc
——»
Control
Signal
| SWITCHES & LEDS & LEDS
SWITCHES
& LEDS
LCD BACKLIGHT
FDD
| BUFFER | |LED DRIVER]
FLOPPY
DISK
mite
et
“garrmicroconPurer
|
SEGS8
CMQ~CM4
SWO0~SW7
a
=e
eal
8
BIT
MICROCOMPUTER
pote
ai
germcroconpuren
|
Oars
|
A
CL)
EY
MAIN
y
(
a
|
7
—
=e
CN2
AQ~ DATA, MTXD, ANO
ADDRESS BUS <} Aza SCLKI MRXD’
TC3 = | |
AO0~A13. UDO~UD3 AN1 =
MAIN CPU
FLOPPY
LCD
COM.MIDI
ee
CONTROLLER
commac
b=
CONTROLLER
ieee
CE
a.
COM.PC2
————a
2
ae
os
=
==
DO~D7
|
DOo-D31
a
DATA BUS
ADDRESS BUS
D16~D31 D16~D31 DO~D15
8M BIT
TABLE
DO~D15
4M BIT 4M BIT
DYNAMIC DYNAMIC
RAM RAM
16M BIT
RHYTHM
DATA
ROM
DATA BUS
A2~A10 A2~A10 A1~A20
ZN
ADDRESS BUS
ADDRESS BUS
1C103
DATA BUS RDO~RD15 A2,A3 DO~D15
SDOA ae
RDO~RD15 RDO~RD15
SDOoO sitnesliany
16M BIT |
WAVE FORM TONE oa
ROM
GENERATOR
RXDI
eee
AYO~AY20 TXD1 eel
fl AX0~AX20 KBO~KB4 [> fs
ZN
AYO~AY20 KFO~KF3,KSO~KS3 =