Technics SX-KN930 - Playing Automatic Rhythms (KN920 KN1500); Rhythm Activation and Variation

WIRING CONNECTION Diagram BLOCK (A) Diagram
BLOCK (A) Diagram
—= Tone Signal —-—> Control Signal
EDD | Pcp | MKB2 |
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ies
De
ee
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ee
ed
i.
i
BUFFER|| DECODER Swenees 450 S Ves Al _|SWITCHES & | 6
FLOPPY LoD i : —— S A SWITCHES & q q 5 DIODES
DISK pray _ lc! DIODES g , 2g
DRIVE
ON/OFF
|
SEGO-SEGS
CM0~CM2
SEG6~SEG12
V)
5)
q
+5D L\
Ww
8
BIT
MICROCOMPUTER
tl
l=
[sm
LCD
pr
CLK.CNTRI
MAIN
”
oe
VOLUME z B A q
CN1 . S)
(~ =>
MAIN i A
Cd C -
Zz
cs)
KSi~ KDBO~ KFO,
CIRCUIT
JANI Ss
KS3, KDB4. KFt,
Al~A4 KFe2, KSO
KF3
sDO
FLOPPY
DISK
Mix
D-A
CONVERTER
IC13B
CONTROLLER
>
AMPA
MICROCOMPUTER
TONE
WD0~
_
SS
K <j) wO0-wo15 N
east
GENERATOR
“°"*
g
LSI 32M BIT
WAVEFORM
ROM
D> _ WAO-WAI3
SDOCHO SDICHO,
SDOREV _SDIREV
4 i
|
DI,DIZ_DO1,D02
DATA BUS
IC28
BOOS K__4 DDo-pp15
DIGITAL
SIGNAL
=
PROCESSOR
OPE
ARS
2
RAM
D> __ 4 DAO~DAT
ADDRESS BUS