MX-2640N, MX-2640NR, MX-2640FN, MX-3140N, MX-3140NR, MX-3140FN, MX-3640N, MX-3640NR, MX-3640FN (serv.man38). MX2640N-MX3140N-MX3640N Circuit Diagram - Sharp Copying Equipment Service Manual (repair manual). Page 10

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MX-3640N  BLOCK DIAGRAM  
1 –  9
(2) MX-FL10
TEL/LIU
C
onnector
F
AX
IMA
G
E
MEMORY
(No
t
mount)
FLA
S
HR
O
M
16Mbit
LIU
JPN
PWB
WO
R
K
MEMORY
S
DRA
M
64Mbit
A
3
64
S
4
0
ETP-
G6
PRO
G
RAM
FLA
S
HR
O
M
16Mb
VHI
M
29L
V16
B-1
Q
FA
X
M
A
IN
P
W
B
MJ1
(L
INE)
S
i3
019
S
i3
05
6
S
ilico
n
D
A
A
S
i3
056
CHIP
S
ET
MR
rel
a
y
CI
D
etectio
n
Po
la
ri
ty
in
v
e
rsion
D
etectio
n
(Not
moun
t)
S
pe
a
ke
r
FA
X
A
S
IC
MB87F49
3
0
MOD
E
M
MMD502
0
PIC
mic
ro
c
omp
uter
PIC1
6F69
0
MFP
IF
Co
nnector
With
secure
locking
de
vice
BM
3
0B-
S
HLD
S
1W
,7W
⋭ࠛࡀࡕ࡯࠼ᤨ
േ૞
S
pred
S
pectrum
CY25811
S
XCT
Cryst
a
l
Reson
a
tor
24.576M
Hz
Vo
lt
a
ge
Regul
a
tor
R117
3S
0
01B
Cr
yst
a
l
Reson
a
tor
14.7456MHz
RE
S
ET
IC
BD4528
5G
S
pe
a
ke
r
Connect
o
r
S
02
B-
PA
S
K
S
TA
TU
S
LE
D_
0
S
TA
TU
S
LE
D_
1
(No
t
mount)
v
olt
a
ge
le
v
el
Vo
lt
a
ge
Regul
a
tor
NJU7
772F
18
Po
w
e
r
Amplifier
LM4
819
Vo
lume
Ch
a
nge
B
U4066
NJ
M
3
41
4
CI
D
etectio
n
v
olt
a
ge
le
v
el
Filter
+24V
Dete
ction
+24V
+12V
CI
F
i
ter
CI
F
i
ter
Filter
v
olt
a
ge
le
v
el
MR
ON
AFE
_
CLK
AF
E
_
RE
S
-
A
S
PC
LK
AB
ITCLK
ARXD
AT
X
D
S
PK(
a
n
a
log)
RGDT
-(CI
ᬌ಴
)
TE
L
ID
CI2-
CI-
H
S
1-
H
S
2-
CID-
+5
V
2
+1
2
+2
4
+5
VA
+5
VA
BZ
EN_
S
PK
O
N
-
EN_
B
ZON-
VO
LA
VO
LB
VO
L
C
VO
L
D
S
PM
UTE
-
3
.3
V
1.
8
V
MDM
3
.3
V
RE
S
ET-
3
.3
V
+5
V
+5
VA
MDM
3
.3
V
+
3
.3
V
+2
4
V
MON_
24
V
-
+2
4V
+5
V
+
3
.3
V
+5
V2
RE
S
_FAX
-
FAX_
RXD(D)+
FAX_
RX
D(D)-
FAX_T
X
D(
D)+
F
A
X
_
TXD(D
)-
FA
X
_
C
T
S
(D
)-
FA
X
_
R
T
S
(D
)-
F
A
X_
RXD(C
S
)+
FA
X_
RX
D(C
S
)-
F
A
X
_
TXD(C
S
)+
FA
X_TX
D
(C
S
)-
FA
X_CT
S
(C
S
)-
FA
X_RT
S
(C
S
)-
FL
VPP
Ve
rs
io
n
ID
CNCT_
FA
X-
3
.3
V
1.9
V
PICPG
WUP_FA
X-
TELID2
16
b
it
16
bit
16
bit
16
bit
16
b
it
16
bit
JT
AG
UA
R
T
UA
R
T
Do
wn
lo
a
d
CPU
S
H770
6
JT
AG
Connector
14pin
(Not
moun
t)
Log
Connector
(Not
moun
t)
M_
EN
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