Figure 8-112.Mnut4004A/C/E Mixer And If Filter Circuits - Motorola APX 7000 Detailed Service Manual

Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: UHF2/VHF
DC_LIN_1_8V
IN
R597
DIG_BAND_SELECT
0
3
IN
C505
0.1UF C504
100PF
C502
L501
TL_RX_B1_MIX_IN
24NH 1000PF
IN
U501
AS211334
C501
1
2PF
J3
DNP
2
L511 GND
8.2NH
3
J2
C510
TL_RX_B2_MIX_IN
1000PF
IN
C527
2PF
C526
L508 L509 C503
11PF 8.7NH
20NH 20PF
DC_LIN_3V IN
T505
059248278
P1 S1
1 3
TL_RX_LO
IN
S2
2
R512
100K
6 P2 S3 4
DNP
5
NC
U502 U502
NC7WZ04 NC7WZ04
4 1 6
NC
T503
059248278
6
V2 C511
100PF
P1 S1
5 1
J1
S2
4
V1
P2 S3
6
NC
U502
VCC
NC7WZ04
GND
C506 C508 C512
0.1UF 1000PF 33PF
U506
C528
1 15
100PF
GND1 MIXBIAS
2 14
INB GND4
3 13
INA RF_M
4 12
C529
LG2 RF_P
5 11
100PF
LG1 GND3
R501
51
DNP
S1
3
S2
2
C509 C513
1000PF 100PF
S3
4
5
NC
3
2
4
5
C523
L503
470PF
220NH
T504
C515
059248278
6.8PF
P1
1
R502
68
P2
6
L502 C514
47NH
43PF
E501
1 2
C517
R504 R506
0.1UF
3.3K 150
R503
24K
2 5 Q501
Q501
BC858CD
BC858CD
R505
180K
C518
1000PF
FL501
L505
L504 C524 C519
31B01 150NH
390NH 27PF 18PF
1 4
IN OUT
C516
2.7PF
Figure 8-112. MNUT4004A/C/E Mixer and IF Filter Circuits
8-235
L506
C520
1000PF 150NH
C522
R511
TL_RX_IF_OUT
15PF
3.3
OUT
C525
1PF
R508
47
C521
1000PF
R509
10
R507
2.7K
Q503
1
BFR380F
L507
33NH