Sharp MX-M654N / MX-M754N (serv.man6) Service Manual ▷ View online
MX-M654N BLOCK DIAGRAM / ブロック図 1 – 7
7. SERIAL COMMUNICATION / シリアル通信
TR
ANS
_DAT
R
S
V_
DAT
TxD0
RxD0
CP
U
H
8S/
2373
Schmit
Inv
.
n
PCU_
RxD
n
PCU_
TxD
SCK
_LSU
TxD3
RxD3
TxD4
RxD4
Schmit
Inv.
Schmit
Inv.
Schm
it
Inv.
D[15:8]
PCU
Schmit
Inv.
LVDS
Schmit
Inv.
Schmit
Inv.
PICﾏ
ｲｺﾝ
PIC1
6F882
TxD_FA
X(D)-
TxD_FA
X(D)+
R
xD_FA
X(D)+
R
xD_FA
X(D)-
TxD_FA
X(CS)
-
TxD_FA
X(CS)
+
RxD_FA
X(CS)
-
RxD_FA
X(CS)
+
1
st
FAX
Schmit
Inv.
Schmit
Inv.
CP
U
SH
7706
PI
C
Tx
D
RxD
P
IC16F
690
FA
X
A
S
IC
MB
87F49
3
0
UAR
TB_TXD
6
UARTB
_RXD6
UARTB_
RTS_N
6
UARTB
_CTS_N
6
U
ARTB_
TXD7
U
ARTB_
RXD7
UARTB
_RTS_
N7
UAR
TC_TX
D
UAR
TC_RX
D
PO
RTC15
UARTB
_TXD0
UARTB
_RXD0
UARTB
_TXD3
UART_
RXD3
Schmit
In
v
.
Schmit
In
v
.
Schmit
Inv.
Schmit
Inv
.
Schmit
Inv.
RB
_RXD
_SCN
RB
_TXD
_SCN
RB
_RTS
_SCN
RB
_CTS
_SCN
RB
_RXD
_PCU
RB
_TXD
_PCU
RB
_CTS
_PCU
RB
_RTS
_PCU
RC
_TXD
_PIC
RC
_RXD
_PIC
RC
_CLR
_PIC
RC
_REQ
_PIC
RB_TX
D_FA
X1D
RB_RX
D_FA
X1D
RB_T
XD_F
AX1C
S
RB_R
XD_F
AX1C
S
RB_RT
S_FA
X1D
RB_C
TS_F
AX1D
RB
_RTS
_FAX
1CS
RB_C
TS_FA
X1CS
UARTB
_RTS0
UA
RTB_CT
S0
UARTB
_RTS3
UARTB
_CTS3
LVDS
RB
_TXD
_FAX
2D
RB
_RXD
_FAX
2D
R
B_TX
D_FA
X2CS
R
B_RX
D_FA
X2CS
U
ARTB_T
XD1
U
ARTB_R
XD1
U
ARTB_T
XD4
U
ART_R
XD4
RB_
RTS_
FAX2
D
RB
_CTS
_FAX2
D
RB_R
TS_F
AX2C
S
RB
_CTS_
FAX2
CS
UAR
TB_RT
S1
UARTB
_CTS1
UA
RTB_RT
S4
UA
RTB_CT
S4
FA
X2
Op
ti
on
al
(
Same
a
s
1st
FAX
)
LVDS
Op
ti
on
al
(
Same
a
s
1st
FAX
)
RB
_TXD
_FAX
3D
RB
_RXD
_FAX
3D
R
B_TX
D_FA
X3CS
R
B_RX
D_FA
X3CS
U
ARTB_T
XD2
U
ARTB_R
XD2
U
ARTB_T
XD5
U
ART_R
XD5
RB_
RTS_
FAX3
D
RB
_CTS
_FAX3
D
RB_R
TS_F
AX3C
S
RB
_CTS_
FAX3
CS
UAR
TB_RT
S2
UARTB
_CTS2
UA
RTB_RT
S5
UA
RTB_CT
S5
FA
X3
244
244
244
244
O.
C
Schmit
Inv.
O.C
Schmit
Inv
.
244
244
P.
U.
P.U.
O.
C.
Schmi
t
Inv.
P.
U.
P.
U.
P.U.
O.C.
O.C.
O
.C.
P.U.
O
.C.
P.
U.
P.D.
O.C
.
P
.D.
P.
U.
P.U.
P.D.
P.U.
P.
D.
P.U.
P.U
.
P.U.
P.U
.
P.U
.
P.
U.
P.U
.
P.
U.
Schmit
Inv.
Schmit
Inv.
Schmit
Inv.
Schmit
Inv.
O.C.
O.C
.
O.C
.
O.C.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
P.
U.
(P
.D.)
P.U.
(P
.D.)
P.U.
(P
.D.)
P.U.
(P
.D.)
O.C.
O.C.
P.U.
P.U.
O.C.
O.C.
(P.D.)
(P.D.)
(P.D
.)
P.U.
(P.D.)
P.U.
O.
C.
O
.C.
RB_
_CTS_
RIC
RB_
_RTS_
RIC
R
B_TXD
_RIC
R
B_DSR
_RIC
R
B_RXD
_RIC
R
B_DT
R_RI
C
UAR
T_CTS_
N10
UAR
T_RTS_
N10
UAR
TB_TX
D10
Op
ti
on
al
C
oin
Ven
d
or
/PCI
P.U.
P.U.
P.U.
P.U.
RS2
32C
Dri
ver
R
S232
C
D
rive
r
RB_
GPI_
CTS_
PCI
RB_
GPO_
RTS_
PCI
R
B_TXD
_PCI
R
B_RXD
_PCI
R
B_DT
R_PC
I
R
B_DSR
_PCI
UAR
TB_TX
D8
Op
ti
on
al
PCI
SUB
P.U.
P.U.
P.U.
P.U.
P.U.
P.U.
UA
RTB_C
TS_N7
P
.U.
Schmit
Inv
P.U.
P.U.
Schmit
Inv
Schm
it
Inv
Schmit
Inv
P.U.
Schm
it
Inv
Schmit
Inv
P
.U.
Schmit
Inv
Schmi
t
Inv
RxD
TxD
SCK
(PD
)
Schmit
Inv.
Schmit
Inv.
Schmit
Inv.
P.U.
P.U.
RxD
TxD
Schmit
Inv.
P.
U.
P.U.
(P.D.
)
（Rac
oon)
MPF
C
R
E
U
S
ASIC
TxD2
RxD2
UP
D65
946G
N
-1
78
P
M
C
A
SIC
2
Rx
D
Tx
D
CP
U
H8
S/23
73
Schmit
Inv.
P.U.
O.C.
(P
.D.)
Sc
hmit
Inv.
P.D.
O.C.
P.D
.
P.U.
TxD
_DSP
F
RxD
_DSP
F
Schmit
Inv.
P.U.
O.C.
(P
.D.)
I/
O
A
S
IC
μPD
6
58
92GC
A
[4:0]
D[15
:8]
CPU
H8S
/237
3
RxD
TxD
Schmit
Inv.
P.U.
O
.C.
(P.D.
)
Schmit
Inv.
P.D
.
O
.C.
P.D.
P.U.
I/O
I/O
RTS
_DSP
F
CTS
_DSP
F
S
C
N
-MO
THE
R
MF
PC
PO
RTB7
PO
RTB8
PO
RTB2
P
ORTB3
P
ORTB0
P
ORTB1
UA
RTB_R
XD10
UA
RTB_R
XD8
PO
RTC11
D
S
PF
cnt
LS
U
LSU
A
SI
C
n
PCU_
CTS
n
PCU_
RTS
/IRQ
2
CP
LD
EPM
2
40
T100
C5
A[9:0]
RxD
Tx
D
I/
O
I/
O
CP
U
RxD
Tx
D
I/
O
I/
O
H8
S/368
7
(O
pti
o
na
l)
P.U
.
P.U
.
P.U.
P.U
.
P.U.
P
.U
.
O.C
.
O.C
.
O.C
.
O.C
.
P.U
.
P.U.
P.U
.
P.U.
P.U
.
P.U
.
O.
C.
O.
C.
O.
C.
O.
C.
FIN
ISH
ER
(Opt
ion
al
)
CPU
M308
43FWG
P
LCC
/LC
T
(P.D
.)
P.U
.
P.U.
(P.D
.)
P.U
.
P.U.
(P.D
.)
P.U.
P
.U
.
(P.D
.)
P.U.
P.U
.
O.
C.
O.
C.
O.
C.
O.
C.
O.
C.
O.
C.
O.
C.
O.
C.
(P.D
.)
P.U
.
P.U.
(P.D
.)
P.U
.
P.U.
(P.D
.)
P.U.
P
.U
.
(P.D
.)
P.U.
P.U
.
O.
C.
O.
C.
O.
C.
O.
C.
O.
C.
O.
C.
O.
C.
O.
C.
T
xD_
LCC
R
xD_
LCC
D
T
R_
LCC
D
SR_
LCC
DT
R_FI
N
DS
R_FI
N
Rx
D_FI
N
Tx
D_FI
N
MX-M654N BLOCK DIAGRAM / ブロック図 1 – 8
8. FAX BLOCK DIAGRAM / FAX ブロック図
A. Except Japan
(1)
MX-FX11
TEL/L
IU
Conn
ecto
r
FA
X IMAGE
MEMORY
(Not mou
nt)
FLASH R
O
M
16Mb
it
LIU EX PWB
FA
X
MAIN PWB
MJ1
(LINE)
MJ2
(TEL)
OFF f
o
c
k
detection
S rela
y
Si3
019
Si3056
Silicon DA
A
Si3
056 CH
IP SET
CI
Dete
ction
P
olar
it
y
inversion
Dete
ction
(Not m
ount)
Speaker
FA
X
A
S
IC
MB
87
F
4
9
30
MODEM
MMD
5020
PIC
microcomputer
PIC16F690
CPU
SH
7706
MFP IF
Connector
With secure
loc
king
de
vice
BM30B-
SHLDS
JTAG
Con
nector
1
4pin
(Not
mount)
Lo
g
Con
nector
(Not
mount)
Oper
ation in 1W/7W
energy-sa
ve
mode
Crystal
R
esonator
24.5
76MHz
Crystal
R
esonator
1
4.7456MHz
Spe
ak
e
r
Co
nn
e
cto
r
S0
2
B
-
PA
S
K
STATUS LED_0
STATUS LED_1
(Not moun
t)
voltage
le
ve
l
Voltage
Re
gulator
NJU7772F
18
Po
wer
Amplifier
LM4819
Vo
lu
m
e
C
hange
BU
4
0
6
6
NJM3414
vo
ltage
le
ve
l
Filter
+2
4V
D
etec
tio
n
+24V
+12V
CI Fi
ter
CI Fi
te
r
Filter
voltage
le
ve
l
RH
S-
+5
V2
ECON
MRON
EX
HS-
SON2
SON1
AFE_
CL
K
AFE_RES-
A
S
PC
LK
ABITCLK
AR
XD
AT
X
D
B
S
PC
LK
BBITCLK
BR
XD
BTXD
S
P
K(
an
al
og
)
RGDT-
(CI detection)
HD
MUTE-
SI3
_
RES-
TEL
ID
CI2-
CI-
HS
1-
HS
2-
CIO
N
15
0VO
N
MSGMUT
E
CID-
+5
V2
+1
2
+2
4
+5
VA
+5VA
BZ
EN_
S
PKO
N
-
EN_
B
ZON-
VO
L
A
VO
L
B
VO
L
C
VO
L
D
SPM
U
TE-
3.
3V
1.
8V
MD
M3.3V
RESET-
3.
3
V
+5
V
+5
VA
MD
M3
.3
V
+3
.3V
+2
4V
MO
N_
24V
-
+2
4V
+5
V
+3
.3
V
+5
V2
RES_F
AX
-
F
A
X_RXD
(D)
+
FA
X_RXD(D)-
FA
X
_
TXD(D)+
FAX_T
XD(D)-
FA
X
_
CTS
(D)-
FA
X
_
R
T
S
(D
)-
FAX_RXD(CS)+
FAX_RXD(CS)-
F
A
X_TXD(
CS)+
FA
X_TXD(C
S)
-
FA
X_CTS(C
S)
-
FA
X
_
R
T
S
(CS
)-
FL
V
P
P
Ve
rsio
n ID
CNC
T_FAX-
3.
3V
1.
9V
PI
CP
G
M
_
E
N
WU
P_
FA
X-
TELID2
16bit
16bit
16bit
16bit
16bit
16bit
JTAG
UA
R
T
UA
R
T
D
o
wn
lo
ad
Spred
Spectr
u
m
CY25811SXCT
PR
O
G
RAM
FLASH R
O
M
1
6Mb
VHIM29LV1
6
B-1Q
WO
RK
MEMORY
SDRAM
64Mb
it
A3
64S40ETP-
G6
RESET IC
BD4
5285G
Voltage
Re
gula
tor
R11
73S001B
MX-M654N BLOCK DIAGRAM / ブロック図 1 – 9
B. Japan
(1)
Internal FAX
TEL/L
IU
Conn
ecto
r
LIU JPN PWB
FAX MAIN PWB
MJ1
(LINE)
MJ2
(TEL)
OFF foc
k
detection
S relay
Si3
019
Si3056
Sili
con DA
A
Si3
056 CH
IP SET
VOICE
CODEC
Si3000
H
andset
AMP
NJM2135M
MR
relay
CI
Dete
ction
Polarity
inversion
Detection
(Not mount)
EC relay
(Not mount)
p
ara-ringer
voice
messag
e
Outpu
t
Speaker
FAX ASIC
M
B
8
7F493
0
MODEM
MMD
5020
PIC
microcomputer
PIC16F690
CP
U
SH
7706
MFP IF
Connector
With secure
locking
device
BM30B-
SHLDS
JTAG
Con
nector
14
p
in
(Not mount)
Spred
Spectrum
CY25811SXCT
Crystal
R
esonator
24.5
76MHz
Voltage
Regulator
R1173S001B
Crystal
Resonator
14.7456MHz
RESET IC
BD4
5285G
Handset
Connector
MD-S6350-90
Speaker
Connector
S02B-
PASK
STATUS LED_0
STATUS LED_1
(Not moun
t)
voltage
level
DC
DC
-150V
Messag
e
Outpu
t
Enable
Voltage
Re
gulator
NJU7772F
18
Po
wer
Ampli
fier
LM4819
Volume
C
hange
BU40
6
6
NJM3414
CI
Dete
ction
voltage
level
Filter
+2
4V
Detectio
n
+24V
+12V
CI F
i
ter
CI Fi
te
r
Filter
voltage
level
Speaker
Microphone
OFF fock detection
RHS-
+5
V2
ECON
MRON
EXHS-
SON2
SON1
AFE
_
CLK
AFE
_
RES-
AS
PCLK
ABITCL
K
AR
XD
ATXD
BS
PCLK
BBITCLK
BR
XD
BTXD
SP
K(
an
al
og
)
RGDT-
CI
HD
MUTE-
SI3
_
RES-
TEL
ID
CI2-
CI-
HS
1-
HS
2-
CIO
N
15
0VO
N
MSGMUT
E
MS
G(
Ana
log)
CID-
+5
V2
+12
+2
4
+5
VA
+5V
A
BZ
EN_
SPK
O
N-
EN_
B
ZON-
VOL
A
VOL
B
VO
L
C
VO
L
D
SP
MUTE-
3.
3V
1.
8V
MDM3.3V
RESET-
3
.3V
+5
V
+5
VA
MD
M3
.3
V
+3
.3V
+2
4V
MO
N_
24
V
-
+2
4V
+5
V
+3
.3
V
+5
V2
RES_FAX-
F
A
X_
RXD
(D)+
FAX_
RXD(D)-
FAX_TXD(D)+
FAX
_T
XD(
D)-
FAX_CTS(D)-
FAX_RTS(D)-
FAX
_RXD(CS)+
FAX
_RXD(CS)-
F
A
X_
TXD(
CS)+
FAX
_TXD(C
S)
-
FAX
_CTS(C
S)
-
FAX
_RTS(C
S)
-
FLV
P
P
Ve
rsion
ID
CNC
T_F
AX-
3.
3V
1.
9V
PICP
GM_E
N
WU
P_FAX-
TEL
ID2
16bit
16bit
16bit
16bit
16bit
16bit
JTAG
UART
UART
D
o
wn
lo
ad
Lo
g
Con
nector
(Not
mount)
WORK
MEMORY
SDRAM
64Mbit
A3V
64S40ETP-
G6
PROGRAM
FLASH ROM
16Mb
VHIM29LV16B-
1Q
FAX IMAGE
MEMORY
(Not mou
nt)
FLASH ROM
16Mb
it
Oper
ation in 1W/7W
energy-sa
ve
mode
MX-M654N BLOCK DIAGRAM / ブロック図 1 – 10
(2)
MX-FL10
TEL/LIU
C
onnector
FA
X
IM
A
G
E
MEMORY
(No
t mount)
FLASH R
O
M
16Mbit
LIU JPN PWB
WO
R
K
MEMORY
SDRA
M
64Mbit
A3
64S4
0ETP-
G6
PRO
G
RAM
FLASH R
O
M
16Mb
VHI
M29L
V16
B-1
Q
FA
X MA
IN PWB
MJ1
(L
INE)
Si3019
Si30
56
Silico
n
D
A
A
Si3056
CHIP SET
MR relay
CI
D
etectio
n
Po
la
ri
ty
in
ve
rsion
D
etectio
n
(Not moun
t)
Spe
ake
r
FA
X
ASIC
MB87F4930
MOD
E
M
MMD502
0
PIC
mic
ro
comp
uter
PIC1
6F69
0
MFP
IF
Co
nnector
With secure
locking
de
vice
BM30B-
SHLDS
Spred
Spectrum
CY25811SXCT
Crystal
Resona
tor
24.576M
H
z
Vo
lt
a
g
e
Regulator
R1173S0
01B
Cr
ystal
Resonator
14.7456MHz
RESET IC
BD4528
5G
Sp
eake
r
Connector
S02
B
-
PA
SK
STATUS LED_0
STATUS LED_1
(No
t mount)
vo
ltage
le
ve
l
Vo
lt
a
g
e
Regulator
NJU7
772F
18
Po
w
e
r
Amplifier
LM4
819
Vo
lume
Cha
nge
B
U4066
N
JM34
14
CI
D
etectio
n
vo
ltage
le
ve
l
Filter
+24V
Dete
ction
+24V
+12V
CI
F
i
ter
CI
F
i
ter
Filter
voltage
le
ve
l
MRON
AFE
_CLK
AFE
_
RE
S-
AS
PCLK
ABITCLK
ARXD
AT
X
D
S
PK(an
alog
)
RGDT
-(CI
)
TE
L
ID
CI2-
CI-
HS1-
HS2-
CID-
+5
V2
+1
2
+2
4
+5
VA
+5
VA
BZ
EN_SP
K
O
N
-
EN_BZON-
VO
LA
VO
LB
VO
L
C
VO
L
D
SP
MU
TE-
3.
3
V
1.
8
V
MDM3.3V
RESET-
3.3
V
+5V
+5
VA
MDM3.3V
+3.3V
+2
4
V
MON_24V-
+2
4V
+5
V
+3
.3V
+5
V2
RE
S_
FA
X-
FAX_RXD(D)+
FAX_
RX
D(D)-
FAX_T
X
D
(D)+
FA
X
_
TXD(D
)-
FA
X_CTS(D
)-
FA
X_R
TS(
D
)-
FA
X_RXD(CS)+
FAX_RXD(C
S)
-
FA
X
_
TXD(C
S
)+
FA
X_TX
D
(CS)-
FAX_CTS(CS)-
FAX_RTS(CS)-
FLVPP
Ve
rs
io
n
ID
CNCT_FAX-
3.3
V
1.9
V
PICPG
WUP_FAX-
TELID2
16
b
it
16
bit
16
bit
16
bit
16
b
it
16
bit
JTAG
UA
R
T
UA
R
T
Do
wn
load
CPU
SH770
6
JTAG
Connector
14pin
(Not moun
t)
Log
Connector
(Not moun
t)
M_
EN
Oper
ation in 1W/7W
energy-sa
ve
mode
Click on the first or last page to see other MX-M654N / MX-M754N (serv.man6) service manuals if exist.