MX-M1055, MX-M1205 (serv.man3). Circuit Diagram. - Sharp Copying Equipment Service Manual (repair manual). Page 3

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MX-M1205  BLOCK DIAGRAM  1 –  2
2. PCU PWB
Re
s
et IC
Xt
a
l
14.7456MHz
Not Mo
u
nt
FW
PCU
DC P
o
w
er
Su
pply
MFPC
Mother
L
S
U
UA
R
T
UA
R
T
CI
S
UA
R
T
option
Fini
s
her
LCT or LCC
UA
R
T
UA
R
T
CPU
H
8S
/2
3
7
3
D-Flip
Flop
s
CLK
I/O A
S
IC
L
S
UCLK
BU
N
CLK
PMC
A
S
IC 1
CLK
PMC
A
S
IC 2
Da
ta
 (D0-D15)
Address
 (A0-A20)
CLK
CPLD
I2C 
bu
s
EEPR
OM
FLA
S
H
(16M
b
it)
S
RAM
(256k
b
it)
D
A con
v
er
ter
An
a
log 
S
W
(2M
b
it)
I2C 
bu
s
CR
UM
Do
ub
le F
eed 
S
en
s
or
S
ynchrono
us
 Motor
S
en
s
or Inp
u
t
HV PWB
(M
a
in)
F
AN Motor
Lo
a
d control O
u
tp
u
t
(Cl
u
tch, 
S
olenoid)
DC Motor Control
F
AN Motor
Lo
a
d control O
u
tp
u
t
(Cl
u
tch, 
S
olenoid)
S
ynchrono
us
 Motor
L
S
U (LD)
HL PWB
F
us
er 
u
nit
S
en
s
or Inp
u
t
S
tepping motor
F
AN Motor
S
en
s
or Inp
u
t
Lo
a
d control O
u
tp
u
t
(Cl
u
tch, 
S
olenoid)
An
a
log 
S
en
s
or
Coin V
ender
PMC
S
pre
a
S
pectr
u
m
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