Samsung sch-880 Service Manual
9-4
Samsung Electronics
9-4 Receiver Circuit Diagram
TCO-5660U1(19.68MHz)
PO5251FA
R307
0
0
SLF-080EL
F301
4
AMPSOUT
1
G1
3
G2
G3
5
2
IN
PCSOUT
6
BLM11A102SPT
L319
4.7nH
L301
C308
430
R306
1
G G
3 4
G G
6
2
IN
5
OUT
1NF
F302
FAR-F6CE-1G9600-L2XB
3.9nH
L303
390,1%
R316
5PF
33NF
C330
2
3
1
C320
DTC114EE/TR
Q303
C325
1NF
30PF
C303
9
IN-
1
5
OUT+
OUT- 6
TCXO_VAA
TMXL011
F308
10 G1
G2
2
3
G3
4
G4
G5
7
8
G6
G7
1NF
C371
R319
1.8K
C370
100PF
NC
C354
L324
180nH
100NF
C352
D
2
G
4
S1
1 3
S2
1.8K
ATF-35143
Q301
6.3V
R320
C327
4.7UF
4.7UF
C368
4.7
R302
VRR
100NF
6.3V
10UF
C357
R318
0
L335
BLM11A102SPT
3
2
1
VRR_PCS
U305
STH-03R
STH-03R
4
2
6
HSMP-389F-TR
D302
C345
100NF
100NF
C351
10NF
10NF
VRR_CELL
120nH
L332
4.7nH
L312
4.7
R303
1
3
2
2.7uH
L321
Q302
2SC4081BRT106
C314
BPC
5
GND
2
6
IFOUT
3
LOIN
RFIN
1
4
VLD
10NF
L305
5.6nH
NJG1553F(TE1)
U301
C360
R311
NC
100PF
C326
240
33NF
VRR_CELL
100
R310
C336
1NF
C334
100PF
C366
10UF
10UF
6.3V
C312
VRR_PCS
ANT
L318
33nH
6.3V
10UF
C375
R328
1.5K
R313
3.3nH
L304
6
7
G6
G7
8
9
G8
IN
10
OUT
5
82
SAFC85.380ME35X-TC11
F310
G1
1
G2
2
3
G3
4
G4
G5
10NF
C315
8PF
C347
100NF
100NF
3
2
1
C324
C350
10NF
D303
HSMP-389F-TR
HSMP-389F-TR
1PF
BLM11A102SPT
C307
10NF
C339
L306
BLM11A102SPT
L323
L311
12nH
10V
1UF
C367
0
R309
560PF
C319
L302
NC
NC
R419
1.8uH
L329
R305
51
51
R456
C361
1NF
R458
10K,1%
10K,1%
2.2K
C1
3
C2
R1C1
6
R2 1
4
VINR1
5
VON/OFF
U417
FDC6329L
2
C377
10NF
3.9K
C374
10NF
10NF
R329
R321
VRR_PCS
C372
0
L326
NC
C359
R312
330nH
0
C318
12PF
10PF
C341
10PF
1NF
C332
4
2
6
C310
R304
56
56
STH-01R
U304
150nH
L322
G1
3
4
G2
G3
5
G4
6
1
IN
2
OUT
J1
MHC-173
D301
BAR63-03W
C362
2PF
2PF
C302
R308
NC
1.8uH
L331
C321
3PF
L316
27NH
27NH
R317
10nH
L308
100K
C343
10NF
NC
C329
0.7PF
C301
C346
C305
NC
G5
8
9
G6
1
IN
IN.R
10
OUT 5
6
OUT.R
8.2PF
F309
TMXL972
2
G1
G2
3
4
G3
G4
7
3
VPD
L325
2.7uH
U302
RF2361TR13
GND1
2
GND2
5
1
RFIN
RFOUT
4
VCC
5PF
C340
16
LD
14
LE
9
OCS_IN
12
1
RFOUT1
7
RFOUT2
VBB1
2
VBB2
6
5
13
CLK
10
DATA
3
DO_IF
4
FIN_IF
8
GND1
GND2
11 15
GND3
G
3
G
4
G G
6
2
IN
5
OUT
U306
FAR-F5CE-881M50-D233-W
F306
1
10
R333
C356
100NF
100NF
C353
10NF
10NF
100PF
C331
0
R325
R457
56K
560PF
C466
1NF
5
RX
TX
11
C322
G1G2
3
4
G3
6
G4G5
7 9
G6G7
10 12
G8
NC
2
C358
F305
FAR-D5CC-881M50-D1A6
ANT
8
1
6.3V
10UF
1NF
C364
1NF
C333
C335
1NF
C313
4PF
4PF
47nH
L327
L333
1.8uH
1.8uH
100PF
C369
C306
30PF
30PF
1.2K
R332
R322
100
1PF
C365
L309
L310
15nH
15nH
VRR_CELL
10nH
100PF
C373
C317
1NF
C304
R326
0
0
NC
L315
39nH
39nH
C316
100PF
100PF
8.2nH
L314
C309
8.2PF
8.2PF
L328
1.8uH
1.8uH
VRR_PCS
L317
27NH
27NH
3.9nH
L307
G9
12
RX
3
TX
1
100
R324
G10
13
5
G2
G3
6
G4
7
G5
8 9
G6
G7
10 11
G8
7
MIXER_IN
3
PD
VCC
11
F303
DFX1880J1960F
2
ANT
G
4
GND2
6
9
GND3
10
GND4
14
GND5
17
GND6
2
IF_SALECT
LO+
4
LO-
5
BYP
8
CDMA+
15
16
CDMA-
FM+
13
FM-
12
GND1
1
L320
390nH
390nH
U303
RF2466TR13
C344
18PF
18PF
2.7K
R314
C348
R323
47
18PF
C342
10NF
R327
0
G
G
6
2
IN
5
OUT
C349
10NF
F304
FAR-F6CE-1G7475-L2YAD
1
G
G
3
4
10NF
C355
C311
C328
5PF
5PF
100NF
33NF
470nH
L330
C363
10NF
C338
R315
27NH
L313
4.7K
C337
1PF
VC
39PF
C323
U307
4
+DC
2
GND
OUT
3
1
R301
BLM11A102SPT
L334
56
PCS_TX_OUT
TRK_LO_ADJ
VRR
CELL_BAND
PLL_EN
RX_IFVCO_OUT
PLL_DATA
PLL_CLOCK
PCS_RX_LO
CELL_RX_LO
CDMA_IF-
MODE_SEL
PCS_IF
CD_IF
CD_IF-
PCS_IF-
SLEEP-
PCS_IF
CDMA_IF
CELL_RX_LO
MODE_SEL
PCS_IF-
CD_IF
CD_IF-
LNA_GAIN_CTL
19.68MHZ
PCS_RX_LO
PCS_TX_LO
CELL_TX_LO
RX_IFVCO_VT
CELL_TX_OUT
FM_IF