Technics SX-PC25 - Page 50

DIGITAL
SIGNAL
PROCESSER
D/A
CONVERTER
IC3 IC9
IC4
RD0-RD15
RA0-RA19
RD0-RD15
RA0-RA19 SD0MIX
32M BIT
DYNAMIC
RAM
IC10
RAMDT0-
RADT7
RAMAD0-
RAMAD14
RAMDT0-RADT7
KF0-KF3,KS0-KS3
KBD0-KBD4
RAMAD0-RAMAD14
256K BIT
STATIC
RAM
IC5
KF0-KF3,KS0-KS3
A1-A4 ADDRESS BUS
D0-D15
A1-A4 P57(AN7)
RESET
P55,P56,P62
TXD0,RXD0
P77
P67(XT2)
P66(XT1)
D0-D15
DATA BUS
KBD0-KBD4
IC2
CN2
T1
POWER
TRANSFORMER
SW1
POWER SWITCH
CN3 CN1
JK3
AC CORD
ACP
F MAIN
A
Tone Signal
Control Signal
CN4
D2,D3
Q4,Q5
Q2
D4 D7
VCC
+5D
+3.3D
RESET
+5V
REGULATOR
IC13
+3.3V
REGULATOR
Q11,Q12
RESET
Q9,Q10
RESET