Technics SX-K350 - Troubleshooting Keyboard Performance Issues; Resolving Common Operational Problems

CYMBAL CIRCUIT DIAGRAM (CYM)
1 2 3 4 5
Envelope Circuit ( open)
D4
i
r271I0K DS
AM
115
eC2i 0C22 R35,
x 470P 470P 100K
yD: fo}
= © 9 x
Clock Generator orl, ce a S
@s|
&
3
3
5
RI
680K
e
%
7
9 tel
s)
5
«
ied
Mi
R7
100K
Envelope
Circuit
ix
Amp
°C23 220P
IclI-l
DI
B
R36
68K
R2 560K
— |
R34
oCl8 ISOP °CI9 I5SOP 10K
R8 100K
4
Icl-2
R23 3.3K
@® cio
50V0.68
R24 33K
R25 4.7K
R31 33K
650.0
Kb
R3 680K
¢
|
R9
100k
Noise
Filter
IC 1-3 °C13 33P
C6 0.022
KH
R17 220K
R4 470K
Cc g | RIO 100k
1CI-4
C7 0.022
--+h
R5 390K
10 RII 100K
R20 150
1CI-5
c8 0.022
KH
R6 180K
C9 0.022
NOTES:
°IC’S
IC1: SVIGH D14584B
1C2: AN655 1F
e TRANSISTORS
Q1~4: 28023 20LFG
e DIODES
D1~.6 MAI65TASVT
E
tms/ov
O° TEMPO: iisessdi ad coed iceinein soe J =160
© RAHM sees cagees Meade ae nne Swing
Somvsd¥ Ci s/D¥
¢ Tempo
e Rhythm ..
¢ Tempo
e Rhythm