Motorola TIMEPORT 280, Service Manual

Page: 60 / 64

A
B
C D E
F
A7
PRE_IN
G8
G9
F7
SDRX
SDFS
SCLK_OUT
B
F
S
R
B
D
R
BCLKR
G H I
J
K
A1
CP_RX
L
M
A3
B1
CP_TX
B5 GP03_DPM
Q
G7
T
X
_
C
L
K
J2
SDTX
B
C
L
K
X
B
D
X
O P
N
N_DCS_SW RX_EN DCS_SEL 5V GSM_EXC_SW N_GSM_EXC_EN 5V N_GSM_EXC_SW EXC_EN RF_V2 N_GSM_SEL RVCO RF_V2 EXC_EN B+ RF_V1
RF_V2 N_EXC_EN DCS_SEL N_RVCO PAC_275 RVCO N_TXVCO RF_V2 N_DCS_SEL PAC_275 N_TX_EN RF_V2 SF_OUT V1_FILT VREF RF_V2
IRDA
U990
J902
J904
FL101 FL103
FL102
HS CONN.
J650
Display Conn
J910
1st 1st
1st
DCS Filter GSM Filter
PCS Filter
U702
U703
SRAM
SRAM
J700
Speaker Pad +
U201
MAGIC DM
Y200
26MHz Crystal
Speaker Pad -
MIC Conn.
SH710
SH210
PRSC_IN
R
C246
D
C
S
R
X
A
N
T
E
N
N
A
S
IG
N
A
L
G
S
M
/P
C
S
R
X
A
N
T
E
N
N
A
S
IG
N
A
L
F
IL
T
E
R
E
D
D
C
S
R
X
A
N
T
E
N
N
A
S
IG
N
A
L
F
IL
T
E
R
E
D
G
S
M
R
X
A
N
T
E
N
N
A
S
IG
N
A
L
F
IL
T
E
R
E
D
P
C
S
R
X
A
N
T
E
N
N
A
S
IG
N
A
L
A
M
P
L
IF
IE
D
I
F
4
0
0
M
H
z
B
F
S
R
S
IG
N
A
L
T
O
P
A
T
R
IO
T
B
D
R
S
IG
N
A
L
T
O
P
A
T
R
IO
T
B
C
L
K
R
S
IG
N
A
L
T
O
P
A
T
R
IO
T
R
X
S
P
E
A
K
E
R
L
IN
E
+
R
X
S
P
E
A
K
E
R
L
IN
E
-
R
X
V
C
O
T
U
N
IN
G
V
O
L
T
A
G
E
R
X
/T
X
V
C
O
F
E
E
D
B
A
C
K
L
IN
E
T
O
M
A
G
IC
T
X
M
IC
L
IN
E
B
C
L
K
X
S
IG
N
A
L
T
O
M
A
G
IC
B
D
X
S
IG
N
A
L
T
O
M
A
G
IC
T
X
V
C
O
T
U
N
IN
G
V
O
L
T
A
G
E
M
A
G
IC
_
1
3
M
H
z
T
O
P
A
T
R
IO
T
A B C D E F G H
I J
K L
M
N
R
F
_
V
2
N
_
D
C
S
_
S
E
L
R
X
_
E
N
D
C
S
_
S
W
G
S
M
_
E
X
C
_
E
N
E
X
C
_
E
N
N
_
G
S
M
_
S
E
L
O P Q R
T
P
T
P
1
G
N
D
T
P
2
R
E
S
E
T
T
P
3
T
D
I
T
P
4
T
D
O
T
P
5
T
R
S
T
T
P
6
T
M
S
T
P
7
T
C
K
T
P
8
M
C
U
_
D
E
T
P
9
D
S
P
_
D
E
T
P
1
1
G
C
A
P
_
C
L
K
T
P
1
3
D
M
_
C
S
T
P
1
4
R
X
_
A
C
Q
T
P
1
5
U
T
X
D
T
P
1
6
U
R
X
D
T
P
1
7
V
P
P
-2
T
P
1
8
V
P
P
-1
T
P
2
0
1
R
V
C
O
T
P
2
0
2
G
P
0
5
J
7
0
0
D
IS
P
L
A
Y
C
O
N
N
E
C
T
O
R
1
B
L
_
S
N
K
2
B
B
_
S
P
I_
C
L
K
3
IV
D
D
4
G
N
D
5
D
IS
P
_
S
P
I_
C
S
6
R
E
S
E
T
_
O
U
T
7
S
D
I_
D
_
c
8
B
B
_
M
O
S
I
9
A
L
R
T
_
V
C
C
from Patriot
from Patriot
fr
o
m
P
a
tr
io
t
from Patriot
J6
C
L
K
_
O
U
T
P280 - SIGNAL FLOW - PAGE 2 /2