Sharp MX-3500N / MX-3501N / MX-4500N / MX-4501N (serv.man10) Service Manual ▷ View online
MX-3500N/4500N/3501N/4501N BLOCK DIAGRAM / ブロック図 1 – 3
3. PCU PWB
IC
1
CP
U
H
8
S/
2
373
IC
5
SR
A
M
(1
M
b
it
)
FL
A
S
H
R
O
M
(1
6
M
b
it
)
IC
6
EEP
R
O
M
(64kbit)
IC
9
PM
C
A
S
IC
IC
8
I/
O
A
S
IC
IC
7
DF
F
LC
X
5
7
4
I2C
B
u
s
A
d
d
ress
B
us[
2
0:
0
]
DA
T
A
B
u
s[
1
5
:0
]
IC
27
/
IC3
0/
IC
31/
IC
37
MU
X
H
C
151
x5
CLOCK
LCC
FI
N
IS
H
E
R
DE
S
K
UA
R
T
UA
R
T
UA
R
T
IC
4
RESETIC
An
al
o
g
I
n
p
u
t
Fu
se
r
T
h
e
rm
is
to
r(
T
H
_U
M
/
L
M
/
U
S
)
T
o
ner
D
et
ec
to
r(
T
C
S
_K/
C
/
M
/
Y
)
P
ro
c
es
s
C
o
n
t.
se
ns
o
r
(P
CS
_K
/
C
L
)
R
e
si
st
se
n
so
r
(R
E
G
S
_F
/
R
)
To
LS
U
Vi
a
Mo
th
e
r
Optional
To
MF
P
C
Vi
a
Mo
th
e
r
UA
RT
UA
RT
DC
P
o
we
r
Suppl
y
X1
Xt
a
l
1
9
.6
60
8M
H
z
IC
2
Spread
Spectrum
Se
n
so
r
In
p
u
t
PPD
2
Sen
so
r
In
pu
t
CP
F
D
1
/
CP
F
D
2/
H
P
O
S
/
P
P
D
1
/
DH
P
D
_C
L
/
DH
P
D
_K
/
PO
D
3
/
P
O
D
2
DS
W
_F
/
DS
W
_R/D
S
W
_C
/
CL
U
D
1
/
CL
U
D
2
/
CS
P
D
1
/
C
S
P
D
2
/
1TUD_K
/1TUD_CL
MUX
HC
1
5
1
CR
U
M
CRUM_K/C/M/Y
I2
C
B
u
s
IC
7
1
D/
A
Con
v
(T
C
S
/
R
E
G
S
c
o
n
t)
Lo
a
d
C
o
n
tr
o
l
O
u
tp
u
t
Co
in
v
e
nd
or
(O
p
tio
n
a
l)
Stepping
Motor
C
ontrol
Pout
Motor(POM)
/
ADU
Motor(ADML)
/
Shifter
Motor(OSM)/
Resist
Motor(RRM)
/
P
SF
Motor(PFM)
Dr
u
m
M
o
to
r
B
K(
D
M
_K
)/
Dr
u
m
M
o
to
r
C
L
(DM
_C
L
)
Fu
se
r
M
o
to
r(
F
U
M
)
Be
lt
M
o
to
r
(B
T
M
)
Fus
e
r
u
ni
t
HL
c
o
n
tr
o
l
HL
_UM
/
L
M
/
US
S
e
ns
or
In
p
u
t
CS
S
1
1-
14
/
C
SS
21-
2
4
PO
D
1
AP
P
D
1
/
AP
P
D
2
Lo
ad
c
o
n
tr
o
l
O
u
tp
u
t
MP
GS
/
C
P
U
C
1
/
C
P
U
C
2
/
PCS
S
/
C
P
F
C
/
L
S
U
S
S
1
/L
S
U
S
S
2
(O
p
ti
o
n
a
l)
/
MP
UC
/
M
P
F
S
/
1
T
UR
C
FA
N
M
o
to
r
Co
nt
ro
l
PS
F
A
N
(PS
F
M
)
/
Oz
o
n
e
F
A
N
(O
Z
F
M
)
/
Po
u
t
F
A
N
(P
O
F
M
_F
/
P
O
F
M
_R
)
Flash
W
rite
Protect
HV
MC
/
T
C
unit
3-w
ire
ds
eria
l
Dr
u
m
L
am
p
(DL_K/C/M/Y)
PW
M
DC
Mo
to
r
C
o
n
tr
o
l
DV
M
o
to
r
B
K(
D
V
M
_K)
/
DV
M
o
to
r
C
L
(DV
M
_C
L
)
P
a
p
e
r
F
e
e
d
M
ot
or
(C
P
F
M
)
Se
n
so
r
In
pu
t
C
S
S
1
/
C
P
E
D2
/
C
SS2
/
C
P
E
D1
M
P
F
D
/M
P
E
D/C
P
W
D
1
1
-
1
2
TF
D
2
/
1
TN
F
D
/
W
E
N
D
D
/
W
IN
ID
Mo
to
r
L
o
c
k
D
e
te
c
t
FA
N
_L
D
1-
2
/
D
V
M
C
_LD
/
D
V
M
B
_LD
/
PFM
_LD
/
F
U
M
_L
D
F
u
se
rT
h
e
rm
is
to
ro
p
e
n
d
e
te
c
t
TH
O
P
E
N
_UM/
L
M
/
US
Sen
so
r
In
pu
t
DVSET
(K/C/M/Y)
DRDET
(K/C/M/Y)
IC
7
3
An
a
lo
g
MU
X
An
a
lo
g
I
n
p
u
t
Te
m
p
/
H
u
m
se
n
so
r(
T
H
_M
/
H
UD_
M)
LS
U
T
h
e
rm
is
to
r(
T
H
1
_LS
U
)
DV
d
e
te
c
to
r
(D
V
T
YP
_C/
M
/
Y
/
K
)
M
u
lt
i-
by
pa
ss
tr
a
y
w
idt
h
sen
so
r(
M
P
W
D
)
FW
Se
n
so
r
In
p
u
t
CO
IN
V
E
N
D
O
R
(O
p
tio
n
a
l)
CV
_C
L
C
O
P
Y
/
CV
_C
O
P
Y
Lo
a
d
o
u
tp
u
t
Me
c
h
an
ic
al
Co
unt
e
r
(O
p
ti
o
n
a
l)
PN
C
_K
/
PN
C_
C
L
Syncronous
Motor
Toner
Motor
(TNM_K/C/M/Y)
Waste
Toner
Motor(WTNM)
DC
M
o
to
r
Li
ft
U
p
M
o
to
r
(CLUM1/CLUM2)
Se
n
so
r
In
pu
t
DS
W
_A
D
U/
T
F
D3
/
M
P
L
D
/
M
T
O
P1
/
M
T
O
P2
/
M
P
E
D
MU
X
HC
1
5
1
RD
I/
F
P
W
B
Sy
n
c
ro
n
o
u
s
M
o
to
r
Fu
se
r
C
le
a
n
in
g
M
o
to
r
(FUCLNM)
MX-3500N/4500N/3501N/4501N BLOCK DIAGRAM / ブロック図 1 – 4
4. SCANNER CONTROL PWB / スキャナコントロール PWB
SC
N
c
nt
P
W
B
S
C
NI
NP
C
B
Or
DO
C
C
P
C
B
RS
P
F
U
n
it
CP
U
H
8S
/2373
IO
A
S
IC
/C
S5
RS
P
F
F
E
E
D
MO
T
O
R
SC
A
N
N
E
R
MO
T
O
R
RS
P
F
RV
S
MO
T
O
R
PH
OT
O
SE
N
S
O
R
CL
U
T
CH
S
C
AN
AS
IC
/C
S
3
SD
R
A
M
1
2
8M
b
it
SR
A
M
1M
b
it
/C
S
2
Fl
a
s
h
R
O
M
<S
o
cke
t>
8M
b
it
/C
S
0
(/
C
S
0
R
ES
ER
V
E)
A
D
DR
E
S
S
/
DA
T
A
B
U
S
SD
R
A
M
B
U
S
CCD
P
CB
Wi
th
A
F
E
&
L
V
DS
LVD
S
D
S
PF
cn
t
PC
B
EEP
R
O
M
32
K
b
it
I2
C
LAM
P
U
N
ST
M
P
U
N
LVD
S
R
e
ce
iv
e
r
30
bi
t
R
G
B1
0b
it
*3
L
V
DS
Dr
iv
e
r
4b
it
*2
LVD
S
CP
T
A
S
IC
/C
S
4
D
S
PF
M
e
m
o
ry
PC
B
LVD
S
L
V
DS
Dr
iv
e
r
28
bi
t
L
V
D
S
R
ecei
v
er
28
bi
t
24
bi
t
B
U
S
BUFFE
R
RG
B
8
b
it
*3
RG
B8
b
it
*3
RG
B8b
it
*3
M
o
ther
P
C
B
(M
F
P
P
C
B)
<
E
ng
in
e
/C
o
nt
ro
ller
>
L
V
DS
Dr
iv
e
r
28
bi
t
LVD
S
LVD
S
D
ri
v
e
r
30
bi
t
MH
P
S
LVD
S
Re
ce
iv
e
r
4b
it
*
2
PA
N
E
L
P
C
B
CA
R
D
R
E
A
D
E
R
AU
D
IT
O
R
OC
S
W
ࡔࣂġĩĪ
ࡔࣂġĩอĪ
LC
D
IN
V
E
R
T
E
R
P
C
B
XT
A
L
19
.6608
M
H
z
XT
A
L
28
.795
M
H
z
or
2
2
.7
4
2
5
M
H
z
LVD
S
24
bi
t
B
U
S
BUF
F
E
R
MX-3500N/4500N/3501N/4501N BLOCK DIAGRAM / ブロック図 1 – 5
5. SERIAL COMMUNICATION / シリアル通信
CPU
H8S/2373
TxD_DSK
RxD_DSK
T
xD_L
C
C
RxD
_
L
C
C
TxD_FIN
RxD_FIN
O.C.
O.C.
O.C.
O.C.
O.C.
O.C.
I/O
ASIC
µ
PD65892GC-
103
O.C.
O.C.
O.C.
O.C.
O.C.
O.C.
CPU
M30843FWGP
Schmit
Inv.
O.C.
O.C.
O.C.
O.C.
O.C.
CPU
H8/3684
CPU
H8/3687
DTR_FIN
DSR_FIN
DTR_DSK
DSR_DSK
DTR_LCC
DSR_LCC
PCU
FINISHER
(Optional)
DESK
(Optional)
LCC
(Optional)
Schmit
Inv.
O.C.
O.C.
O.C.
O.C.
O.C.
A[4:0]
D[15:8]
Schmit
Inv.
Schmit
Inv.
Schmit
Inv.
SCK_LSU
RSV_DAT
TRANS_DAT
Schmit
Inv.
Schmit
Inv.
Schmit
Inv.
LSU
A
SIC
O.C.
nPCU_RxD
Schmit
Inv.
nPCU_TxD
O.C.
PCU_DSR
Schmit
Inv.
PCU_DTR
Schmit
Inv.
O.C.
Schmit
Inv.
O.C.
MFPC
I/F
ASIC
O.C
O.C.
Schmit
Inv.
O.C.
nTxD_SCN
nRxD_SCN
RTS_SCN
CPU
H8S/2373
CPU
H8S/2373
Schmit
Inv.
Schmit
Inv.
O.C
Schmit
Inv.
CTS_SCN
Schmit
Inv.
TxD0
Schmit
Inv.
O.C.
O.C.
Schmit
Inv.
Schmit
Inv.
O.C.
O.C.
TxD_SCAN
RxD_SCAN
I/O
ASIC
µ
PD65892GC
O.C
O.C.
Schmit
Inv.
O.C.
DTR_FAX(D)
DSR_FAX(D)
DTR_FAX(CS)
Schmit
Inv.
Schmit
Inv.
O.C
Schmit
Inv.
DSR_FAX(CS)
P.D.
P.U.
P.D.
P.U.
P.D.
P.U.
P.U.
P.D.
P.D.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.D.
P.D.
P.U.
P.U.
P.D.
P.U.
P.U.
P.U.
P.D.
P.D.
P.U.
P.D.
P.D.
P.U.
P.U
P.D.
P.U.
P.D.
P.U
P.D.
A[4:0]
D[15:8]
P.D.
P.U.
P.U.
P.D.
P.D.
P.U.
P.U.
P.D.
TxD_FAX(D)
RxD_FAX(D)
TxD_FAX(CS)
RxD_FAX(CS)
LVDS
RxD0
I/O
port
I/O
port
TxD1
RxD1
SCK1
TxD2
RxD2
TxD3
RxD3
TxD4
RxD4
RxD
TxD
SCK
RxD
TxD
I/O
I/O
RxD
TxD
I/O
I/O
RxD
TxD
I/O
I/O
R
x
D[1]
TxD[1]
CTS[1
]
RTS[1]
RxD
[2
]
TxD[2]
CTS[2
]
RTS[2
]
RxD[3]
TxD[3]
CTS[3
]
RTS[3
]
TxD[4]
RxD[4]
CTS[4
]
RTS[4
]
PIC
TxD[PIC]
RxD[PIC]
O.C.
Schmit
Inv.
P.U.
P.D.
nTxD_PIC
O.C
Schmit
Inv.
nRxD_PIC
P.U.
CLR[PIC]
O.C.
O.C
P.U.
CLR_PIC
REQ[PIC]
Schmit
Inv.
REQ_PIC
O.C
P.U.
LSU
DSPF
Cnt
(for
C-Jupiter)
SCN
Cnt
Mother
MFPC
1st
FAX
(for
FG
Model)
TxD
RxD
TxD
RxD
DSR_SCAN
DTR_SCAN
I/O
I/O
New
ASIC
TxD_FAX(D)+
TxD_FAX(D)-
RxD_FAX(D)+
RxD_FAX(D)-
TxD_FAX(CS)+
TxD_FAX(CS)-
RxD_FAX(CS)+
RxD_FAX(CS)-
RxD
TxD
CPU
SH7706
PIC
TxD
RxD
2nd
F
AX
(same
as
1st)
(Optional)
P.U.
DOCC
(Optional)
CPU
H8S/2320
O.C.
Schmit
Inv.
RxD
TxD
Schmit
Inv.
O.C
TxD
RxD
MX-3500N/4500N/3501N/4501N BLOCK DIAGRAM / ブロック図 1 – 6
6. FAX
A. Except Japan
TE/LIU
connector
FAX
IMAGE
MEMORY
Not
install
FLASH
R
OM
16Mbit
LIU
P
WB
WORK
MEMORY
SDRAM
64Mbit
x
2
PROGRAM
FLASH
ROM
8Mb
x
2
FAX
MAIN
PWB
FLASH
R
OM
PWB
MJ1
(LINE)
MJ2
(TEL)
BT
relay
Exter
nally-
connected
hook
detection
circuit
Sr
e
la
y
Si3015
Si3021
Silicon
D
AA
Si3044
CHIP
SET
AFE_CLK
AFE_RES-
AFE_ASPCLK
AFE_ABITCLK
AFE_ARXD
AFE_ATXD
VOICE
CODEC
Si3000
Handset
(Japan
only)
AMP
Speaker
Microphone
MSG(Analog)
OFF
fook
d
etection
MR
relay
CI
detection
circuit
EC
relay
AFE_BSPCLK
AFE_BBITCLK
AFE_BRXD
AFE_BTXD
SPK(Analog)
RHS-
CI-
HS1-
HS2-
CION
150VON
48VON
HDMUTE-
Speaker
Speaker
circuit
Input
select
Sound
volume
detection
BZ
EN_SPKON-
EN_BZON-
VOLA
VOLB
VOLC
SPMUTE-
NEW
A
SIC
MODEM
(MN195006E)
ECON
EXHKD-
MRON
SON1
SON2
PIC
microcomputer
(PIC16F627A)
CID-
RGDT-(CI
detection)
CPU
SH7706
UART
Download
MFP
IF
connector
FAX_TXD(D)+
FAX_TXD(D)-
FAX_RXD(D)+
FAX_RXD(D)-
FAX_CTS(D)-
FAX_RTS(D)-
RE
S_MFP-
FFVPP
MSW_MON-
WUP_FAX-
PLED
RES_FAX-
CNCT_FAX-
+12V
+3.3V
+5V2
16bit
32bit
32bit
16bit
16bit
32bit
+5V2
+5V2
E2PROM
(CAT24W02)
I2C
JTAG
debug
connector
JTAG
UART
Debug
connector
Oper
ation
in
1
W/7W
energy-sa
v
e
mode
FAX_TXD(CS)+
FAX_TXD(CS)-
FAX_RXD(CS)+
FAX_RXD(CS)-
FAX_CTS(CS)-
FAX_RTS(CS)-
VOLD
Spred
Spectrum
X’TAL
24.576MHz
Voltage
Regulator
1.9V
X’TAL
14.7456MHz
RESET
IC
(PST591IMT)
RESET-
+3.3V
EYE
pattern
connector
2bit
Handset
connector
Speaker
connector
POWER
LED
STATUS
LED
TELID
Voltage
level
DCDC
-150V
DCDC
48V
Po
la
ri
ty
re
v
e
rsal
detection
Pseudo-
ri
nger
Voice
m
essage
output
circuit
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