Motorola Professional GP340 Service Manual page 54

4-18
-47dBm@45.1MHz
-51.2dBm@45.1MHz
FL301
XTAL
TBD
C323
L311
150pF
750nH
6 3
IF IN OUT
C324 R352
20pF 3.3K
L331 R343
2.20uH 10
Vdd_FILTERED
C382
(SOURCE)
10uF
C344
0.1uF
C329
0.1uF
C342
1uF
C341
1uF
C340
1uF
C339
1uF
C356
Vdd_FILTERED
.022uF
C337
L314
100pF
2.2uH
C336
C355
0.1uF
R5 0.33uF
R314
3K
C326 R313 C328
0.1uF
.01uF 330
C327 2.683V
R311 100pF
30K
C330
10pF
R312
C325
R351
2.4K
Q302
.01uF
0
R315 L330
680nH
12K
0.706V
Vdda
C348 C347
C346
0.1uF 0.1uF
0.1uF
C343
0.22uF
C357
0.22uF
C358
1200pF
37
C359
C4P
38
0.1uF
C3P MLPD_CR
39 24
C334
C2P BRP_OFF
23
40 .022uF
C1P BROWN_VCC
22
41
GREEN_VCC FREF
42 21
MIX_BYP GND
43 20
U301
LVZIF_SEL
GREEN_VSS CEX
32D83 19
44
BLUE_VSS CLK CLK
45 18
BLUE_VCC DATA
46 17
MIX_IN TESTA
16
47
PREAMP_OUT IOUT
15
48
PRE_AGC GOLD_VSS
14
COL
13
C338
15pF
RSSI
DA C360
.022uF
SH323
SHIELD
C361
.01uF
1
CRYSTAL FILTER SHIELD
DEMOD
R350
C345
100K
0.1uF
C390
100pF
DB
R344
12K
3.185V
C383
3
BFQ67W
100pF
C352
Vdd_FILTERED
12pF
2
C349
.022uF
C351
20pF
16.8MHz
C350
330pF
DATA
C362
.022uF
C363
2.2uF
SH321 SH322
SHIELD SHIELD
1 1
LVZIF TOP SHIELD LVZIF BTM SHIELD
300R1 (300-350MHz) Receiver Back End
PCB 8485726Z04 - Schematics
R345
R355
10K
0
2.628V
Q320
C384
56pF
1
C353
2.095V
43pF
R346
56K
C385 L332
56pF
C354 100nH
R324
47pF
2K
L325
2.20uH
R320
CR310
1K
R321 C364
R322
2.4K .01uF
200K
ZMY0130349-O