Motorola PRO3150 Manual De Servicio página 130

4-78
UNSWB_PLUS_1_RX UNSWB_PLUS_2_RX
UNSWB+
C3336
10uF
C3303
20pF
C3302
RX_IN_1_FE
RX_IN
150pF
L3301
C3301
12nH
5.6pF
D3301
1.9V @ -47dBm at Ant. Conn
0,3V @ no input at Ant. Conn
RSSI_1_FE
R3304
RSSI
R3303
100K
C3321 C3322 C3323
0.7 - 5V 100pF
100pF
330pF
136 - 174MHz
DACRx_1_FE
DACRx
RX_INJ_1_FE
RX_INJ
Figura 4-49a. Diagrama esquemático de la etapa de entrada del receptor de VHF (136-174 MHz) (tarjeta de circuito impreso nº 8480675Z01)
R5
R5_2_FE
R5_3_FE
C3337 C3309 R3316
.022uF 300
0.1uF
C3308
L3304
330pF
470nH
C3307
100pF
R3310
10K R3313
R3308
2.4K
2.7V 22
C3304
C3306
150pF
0.1uF
Q3302
L3303 C3305 20mV
R3309
12nH 2.2pF
5.6K
NU R3312
R3311
NU
10
CR3303
R3307 C3338
33K 470pF
C3326
R3306
0.1uF
NU
2.2K
C3325
Q3301 1000pF
100K
R3301
33K
NU
R3305
R3324
RT3301 220
68K
33K
NU
C3324
33pF
C3315
R3315
10pF
330
C3313
C3316
150pF 3.3pF
C3311 C3312
R3314
10
150pF 16pF
L3306
12nH
D3302
L3305 C3314
C3310
12nH 6.8pF
1pF
NU
NU
CR3302
SMBV1032
C3327
330pF
R3317
100K
C3329 C3330 C3331 C3332
330pF 100pF 100pF 39pF
400mV w. RF Vltmtr
-16dBm @50½
C3320
82pF
L3309
150nH
R3322
R3321
220
150
R3323
18
6 T3301 1
C3317
39pF
2
C3318
4 3
XFMR
L3308
.022uF
C3319
10nH
NU
C3339
10pF
R3320
1K
NU
CR3301
4
R3319
1K
NU
2
L3312
33nH T3302
6 1
2
C3335
C3334
22pF
20pF
4 3
XFMR
R3318
470
SH3301 SH3302 SH3303
SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD
TP3301
ZMY0130321-O
IF_1_FE
IF
3
1