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E
MKB1
CN8
IC1
DECODER
SWITCHES
& DIODES
CN9
CN3
CN301
F
MKB2
CN4
IC2
IC3
DECODER
DECODER
CN7
SWITCHES & DIODES
IC102,104
3-5V I/F
IC206
IC204
A/D
CONVERTER
C
CPL
SWITCHES & LEDS
IC2,3
VR2
BUFFER
MAIN
VOLUME
IC1
SEG0-SEG8
8BIT MICROCOMPUTER
CN2
CN1
CN202
CN102
IP101
+5D
Q1-5
LED
DRIVER
CM0-CM4 SW0-SW7
DATA,SCK
RST
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