Technics SX-PX662

8BIT MICROCOMPUTER
IC1
DATA ,S C K
IC2,3
BUFFER LED DRIVE
VR2
MAIN
VOLUME
SEG0-SEG11 CM0-CM5 SW0-SW7
256K BIT
PSEUDO
STATIC
RAM
IC17
RD0-RD7
RA0-RA14
IC18
WD0-WD15
WA0-WA19
256K BIT
PSEUDO
STATIC
RAM
D/A
CONVERTER
D/A
CONVERTER
IC11
IC21 IC26A
IC26B
IC22
RD0-RD7
RA0-RA14
64M BIT
MASK ROM
64M BIT
MASK ROM
IC12
WD0-WD15
WA0-WA19
Q2 6
LED1
Q6
Q7,8
+5D REGULATOR
+5A REGULATOR
+3.3V REGULATOR
Q9
SWITCHES & LEDS SWITCHES & LEDS
LED DISPLAY
-15V
CPL
C
CPR
D
MAIN
A
CN3
CN1
CN2
CN4
CN2 CN3
CN1
CN6
+15V
D12
D13
D14
+5A
+5B
+5D
+VCC
+3.3V
WD0A-WD15A
RD0A-RD7A
WA0A-WA19A
RA0A-RA14A
WD0B-WD15B
RD0B-RD7B
WA0B-WA19B
RA0B-RA14B