Read Sharp MX-6240N / MX-7040N (serv.man34) Service Manual online
MX-7040 BLOCK DIAGRAM / ブ ロ ッ ク 図
1 – 11
B.
Japan
(1)
F model internal FAX
TEL/L
IU
Conn
ecto
r
LI
U
J
PN
PWB
FAX
M
AIN
P
WB
MJ1
(LINE)
MJ2
(TEL)
OFF
foc
k
detection
S
relay
Si3
0
1
9
Si3056
Sili
con
D
A
A
Si3
0
56
CH
IP
SET
VOICE
CODEC
Si3000
H
a
ndset
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
MB
87
F
4
9
30
MODEM
MMD
5020
PIC
microcomputer
PIC16F6
9
0
CP
U
SH
7706
MFP
IF
Connector
With
secure
locking
device
BM30B-
SHLDS
JTAG
Con
n
ector
1
4pin
(Not
mount)
㪈㪮㪃㪎㪮⋭䉣䊈䊝䊷䊄ᤨ
േ
Spred
Spectrum
CY25811SXCT
Crystal
R
e
sonator
24.5
76MHz
Voltage
Regulator
R1173S001B
Crystal
Resonator
14.7456MHz
RESET
IC
BD4
5
285G
Handset
Connector
MD-S6350-
90
Speaker
Connector
S02B-
PASK
STATUS
LED_
0
STATUS
LED_1
(N
ot
moun
t)
voltage
level
DC
DC
-1
50V
Messag
e
Outpu
t
Enabl
e
Voltage
Re
gulator
NJU7772F
18
Po
wer
Ampli
fier
LM481
9
Volum
e
C
h
ange
BU40
6
6
NJM3414
CI
Dete
ction
voltage
level
Filter
+2
4V
D
etectio
n
+24V
+12V
CI
Fi
ter
CI
Fi
te
r
Filter
voltage
level
Speaker
Microphone
OFF
fock
detection
RH
S-
+5
V2
ECON
MRON
EX
H
S
-
SON2
SON1
AFE
_
C
L
K
AFE
_
RES-
AS
P
C
L
K
ABITCL
K
AR
XD
ATX
D
B
S
PC
LK
BBITCL
K
BR
XD
BTX
D
S
P
K(
an
al
og
)
RGDT-
CI
ᬌ
HD
MUTE-
SI3
_
RES-
TEL
ID
CI2-
CI-
HS
1-
HS
2-
CIO
N
15
0VO
N
MS
GMUT
E
MS
G(
Ana
log)
CID-
+5
V2
+1
2
+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
MD
M3.
3
V
RESET-
3.
3
V
+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_
RX
D
(D
)+
FAX_
RXD(D
)-
FAX
_
TXD(D)
+
FAX
_
T
X
D(
D)-
FAX
_
CTS
(D)-
FAX
_
RTS
(D)-
FAX
_
RXD(
CS)+
F
A
X_
RX
D(C
S
)-
F
A
X_
TXD
(C
S)+
FAX
_
TXD(C
S
)-
FAX
_
CTS(C
S
)-
FAX
_
RTS(C
S
)-
FLV
P
P
Ve
rs
io
n
ID
CNC
T
_F
AX
-
3.
3V
1.
9
V
PICPGM_E
N
WU
P_
FA
X-
TEL
ID2
16bit
16bit
16bit
16bit
16bit
16bit
JTAG
UART
UART
D
o
wn
lo
ad
Lo
g
Con
n
ector
(Not
mount)
WORK
MEMORY
SDRAM
64Mbit
A3V
64S40ETP-
G6
PROGRAM
FLASH
R
OM
16Mb
VHIM2
9
LV16B-
1Q
FA
X
IMAGE
MEMOR
Y
(Not
mou
n
t)
FLASH
R
OM
16Mb
it
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