Brother MFC-J2320 Service Manual page 341

Modem PCB

U.S.A., Canadian models (Page2)
C30 C16
C17
10%
10%
C105
C104
+3.3V
GND
C25
C34
C24 C31
10% 2012
10%
10%
C106
C105
C104
GND
R25
5A
SPOUT
100
+3.3V
R18 240k
1/10W
5B R24
MDM_INT
100
C27
C101
GND
R28
CI
5B 100
C28
C101
GND
@U2
TP30
5 10
TP38
VDD5 GPIO0
25 11
TP39
VDD25 GPIO1
12
C103
GPIO2
GND
6 13 TP40
VDDO6
P_DIBn
16 14 TP41
VDDO16 P_DIBp
10%
C105
2
TP42
SDI
TP33
17 3 TP43
S_DIBn SDO
TP34 18
S_DIBp
TP44
1
CSn
TP45
TP35
22 9
EYECLK RESETn
TP36 21
EYESYNC
TP37 20
EYEXY/SWCFG2
4
SCK TP46
TP31
19
SDAA_PWM
23
TP47
XCLK/SWCFG1
24
FCTP8
YCLK/SWCFG0
TP28 26 27
SDAA_RCREF/TEST XTALI/CLKIN
28
XTALO
7
IRQ
TP48
TP32
8 15
RIn VSS_VSSO
29
EP
CX95110-51Z
GND
+3.3V
R31
RDPS
0
1-2B
P_DIBn
1-6B
P_DIBp
1-6C
R22 100
R23 100
1%(F)
MDM_SPI_DO
1%(F) 5A
GND
C22
C101
GND
R21 100
MDM_CSN
+3.3V
5A
+3.3V
C32 C21
C35
C101
10%
GND
C105
C26
R27 1k C33
10%
C101
C105
GND
GND
100
R20
MDM_SPI_CLK
C23
1%(F)
5B
C101
GND
C15
50VDC
TP50
TP49
C15P
DSX321G 28.224MHz
1
2
GND
4
3
GND
@X1
C14
R16
TP51 50VDC
1.5k
1%(F)
C12P
GND
6-2
MAIN
FCTP20
FFC 12
1
SDI
FCTP14
2
MDM_MONITOR
FCTP19
MDM_SPI_DI
3
CSN
5A
FCTP13
C29
C101 4
SDO
FCTP18
5
GND
FCTP12
10%
6
C105 SCK
MDM_RSTN
FCTP17
5B
7
IRQ
FCTP11
8
RIn
FCTP16
9
RESETn
FCTP10
10
CHRG
FCTP15
11
+31V
FCTP9
12
+3.3V
@CN3
GND
+3.3V
C37
C105
GND
+3.3V
MDM_SPI_DI
R14
4A
47k
SPOUT
2B
MDM_CSN
3A
MDM_SPI_DO
3A
GND
MDM_SPI_CLK
3B
MDM_INT
2B +3.3V
R15
CI
47k
2C
MDM_RSTN
3B
NC
+31V
+3.3V
C36
C106
3216
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