Panasonic SX-PX554 Service Manual page 90

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C
CPL
SWITCHES & LEDS
IC2,3
Q2 6
BUFFER
LED DRIVE
IC1
SEG0 SEG11
CM0 CM5
SW0 SW7
8BIT MICROCOMPUTER
DATA,SCK
CN1
CN3
IC21
D-A
CONVERTER
IC22
D-A
CONVERTER
WD0A
WD15A
RD0A
RD7A
IC11
RA0A
RA14A
WA0A
WA19A
WD0B
WD15B
RD0B
RD7B
IC17
RA0B
RA14B
WA0B
WA19B
VR2
CN2
MAIN
VOLUME
CN4
CN2
IC26A
IC26B
D0 D7
256K BIT
PSEUDO
STATIC
RAM
A0 A14
D0 D7
256K BIT
PSEUDO
STATIC
RAM
A0 A14
D
A
CPR
SWITCHES & LEDS
CN3
LED1
LED DISPLAY
IC12
D0 D15
64M BIT
MASK RAM
A0 A19
IC18
D0 D15
64M BIT
MASK RAM
A0 A19
MAIN
Q6
+15V
+5A REGULATOR
+5A
D14
D12
+5B
D13
-15V
+VCC
+5D
Q7,8
+5D REGULATOR
+3.3V
Q9
+3.3V REGULATOR
CN1
CN6

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