Figure 8-9. Receiver Front End Circuit - Motorola APX 1000 Detailed Service Manual

Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: VHF (84012320001 / PC000352A01)
IF302
IF
DC_LIN_1_8V_A
1
IN
IF303
IF
DIG_CTRL_RXV
1
IN
C330 C367
TL_RX_VHF_FE_IN
RF_RX_VHF_F1_C
27PF 15PF
RF_RX_VHF_F1_D
1
IN
C332 C334
IF
27PF 5.6PF
IF301
L313
L327 L312
39NH
120NH 120NH
RF_RX_VHF_F1_B
C333 C335
27PF 43PF
C331
C366
18PF
18PF
E302 DC_LIN_RX_VHF_LNA_A
1 2
R312 R313
DC_LIN_RX_VHF_LNA_D
10K 33
R310
75K
DIG_CTRL_RXV_A
Q304
BC858CD
MUN5212T Q303
Q303
3 2 5
22K BC858CD
1
R311
120K
DC_LIN_RX_VHF_LNA_B
DC_LIN_RX_VHF_LNA_E
C338 C340
4.7UF 330PF
RF_RX_VHF_LNA_A
L315
68NH
C336
C339
6.8PF 22PF
RF_RX_VHF_F1_E
RF_RX_VHF_LNA_B
D301
MMBD352
L314
C370
DNP
39NH
1PF
C337
18PF R380
10
DC_LIN_RX_VHF_LNA_C
C341 C342
330PF 4.7UF
L316
72NH
RF_RX_VHF_LNA_C RF_RX_VHF_F2_A RF_RX_VHF_F2_E
RF_RX_VHF_LNA_D
RF_RX_VHF_F2_C
C343
R381 C360 C345
C347
TL_RX_VHF_L2F
330PF
10 15PF 27PF 15PF
R314
1.2K
C344 L318 L319
1PF 120NH 120NH
1 U304
BFR380F
RF_RX_VHF_LNA_F
RF_RX_VHF_F2_D
RF_RX_VHF_LNA_E R315
C346 C348
10
RF_RX_VHF_F2_B 18PF 18PF
L317
10NH
RF_RX_VHF_F2_F
C357
C349 C351 C353 L328
27PF 5.6PF 6.8PF 330PF
0
L320 L321
39NH 39NH
C350 C352 C354
27PF 43PF 18PF

Figure 8-9. Receiver Front End Circuit

8-37
IF304
L329 C365 RF_RX_VHF_FE_OUT
0 IF
30NH
1
OUT
C368
C369
24PF
1.5PF
DNP