SPP-S2720
30
30
R
3
1
5
R
3
1
6
R
3
1
7
R
3
1
8
R
3
1
9
R
3
2
0
R346
R337
R336
R
3
3
8
R
3
4
2
R
3
4
3
R
3
4
0
R
3
3
9
R334
R333
D753
D754
D751
D752
TP777
TP776
TP775
TP774
TP773
TP772
TP771
TP316
TP317
TP318
TP338
TP337
TP321
TP336
TP329
TP332
TP325
TP326
TP327
TP328
TP330
TP331
TP333
TP334
TP335
CN302
CN301
R
3
6
7
R
3
6
8
R
3
6
9
R
3
70
R
3
71
R
3
7
2
TP308
R321
R332
R331
R330
R344
R329
R328
R327
R345
R325
R324
R323
R322
C314
C303
C
3
0
2
C304
TP307
R313
R314
R276
R275
R274
R273
R272
R271
TP275
TP274
L272
R281
C282
C283
TP271
R309
R383
TP303
C301
R306
R311
R301
C315
TP309
S751
C318
X301
R122
R335
S302
C277
C278
ANT102
R280
ANT101
TP277
TP107
Q301
C313
IC
3
0
3
D
3
0
2
IC302
RF271
D301
IC301
TP306
C273
0
0
0
0
0
0
22k
0
1k
0
0
0
0
0
4.7M
10k
MVR3338S
MVR3338S
MVR3338S
MPG3371X
11P
15P
1
0
0
k
1
0
0
k
1
0
0
k
1
0
0
k
1
0
0
k
1
0
0
k
100k
0
0
0
270
0
0
270
220
10k
10k
0
0
0.1
1
1
100
16V
10k
4.7k
1k
1k
1k
1k
3.3k
1k
1P
0
3p
0.1
100k
100k
0.1
1k
100k
0
1
6MHz
100k
4.7k
3p
0.1
0
2SA1576A-T106-QR
0.1
C
A
T
2
4
W
C
1
6
J
I
-1.8
-T
E
1
3
S
B
0
5
-0
5
C
P
-T
B
S-80827ANUP
-EDQ-T2
1SS133T
-77
SB875064W-5W61
5.6nH
A1
A2
C
1
C
2
C
3
C
4
C
5
C
6
ROW1
ROW2
ROW3
C
O
L
3
C
O
L
4
C
O
L
1
C
O
L
2
FSYNC
SCLK
ROW4
R
O
W
5
R
O
W
6
SCL
CS
SDA
SDA
CS
SCL
C
O
L
5
RESET
DL0
DL1
ANT A
ANT B
ANT B
ANT A
RS
R
S
A
C
K
S
D
I
S
D
O
H
R
N
W
S
C
C
S
PGM
PGM
AA1
AA2
AA3
AA4
AA5
AA6
AA7
R
E
S
E
T
PWR
RST
COL5
ROW6
ROW1
ROW2
ROW3
ROW4
ROW5
COL3
COL2
COL1
COL4
P
7
1
A
N
1
A
N
0
AA4
A
A
3
A
A
2
A
A
7
AA5
AA6
AA1
P17
P
P
1
VCC
TEST
SCL
SD
A
GND
A
2
A
1
A0
N.C.
N.C.
HANDSET
LOCATOR
CHARGE
VOICE MAIL
NEW CALL
IN USE
VOLTAGE
DETECT
EEPROM
RESET SIGNAL
GENERATOR
O
I
G
RESET
(SUB ANTENNA)
(RF UNIT)
(MAIN ANTENNA)
SYSTEM CONTROLLER
MAIN
ANTENNA
*
CN301,302
IN THE TEST MODE,
CONNECT TO BASE KEY BOARD
OF SPP-A2780.
*
*
(GND)
C280
0.01
C279
0.01
0.1
C307
100p
6-6.
SCHEMATIC DIAGRAM – BASE MAIN (1/3)/KEY MAIN Boards –
•
See page 23 for Waveform.
•
See page 23 for Note on Schematic Diagram.
(Page 31)
(Page 32)
Содержание SPP-S2720
Страница 51: ...51 SPP S2720 MEMO ...