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(14) ADU circuit description
(1) ADU circuit block diagram
VH
SUB DC
PWB
VB
IC4
VD
1
2
3
2
DPFC
DRRC
CLUTCH
DRRC
DPFC
IC3
DRRC
DPFC
3
DPHPS1
DPHPS2
DPED1
DPHPS1
DPHPS2
DPED1
SPPD1
DPOD
DPTD
DPED2
IC6
IC 1
CPU
H8/3292
D-TXD
D-RES
D-DTR
IC9
DO-D7
/PAM-OUT
/WH
DATA
LUTCH
CLUTCH
STEPPER
DRIVER
2
PAM2/B
PAM2 B
PAM2/A
PAM2 A
PAM2
STEPPER
PAM1
STEPPER
2
PAM1/B
PAM1 B
PAM1/A
PAM1 A
IC2
STEPPER
DRIVER
DDM_PWM
D-RXD
D-DSR
DPED2
PAPER SIZE AB ONLY
DPPD1
DPOD
IC5
A
0
-
A
1
5
D
O
-
D
7
-
R
D
DDM_DIR
Q1-
DDM_DIR
DDM_PWM
IC8
DDM1
DDM2
DDM
1
DC MOTER
DRIVER
Q4
3
ROM
MAIN
DPTD
2 ADU SENCER
PWB
PWB
12 – 17