Figure 8-69. Receiver Back End Mixer - Motorola APX 3000 Detailed Service Manual

8-124
DC_LIN_5V
IN
T506M21
059248278
TL_RX_MIX_IN
1 P1
IN
6 P2
C504M21
100PF
C516M21
L550M21
R525M21
TL_RX_LO
330PF
0 47NH
IN
L501M21
C550M21
100NH C551M21
C505M21
33PF
33PF
2.2PF
DNP
DNP
C503M21
220PF

Figure 8-69. Receiver Back End Mixer

C502M21 L500M21
R500M21
.033UF 220NH
33
C500M21
.033UF
C501M21
330PF
U507M21
SC2072BP
8
S1 3 IFN
4 9
RFN
IFP
5 12
RFP
S2 2 BBP
2
BDIV
10 3
LOIN
S3 NC1
4
6
NC2
7
NC3
5
NC
R502M21
C508M21
30
4.7UF
MIXER WITH MACKINAW BALUN AT RF AND IF PORT
L503M21 L504M21
100NH 270NH
R512M21
0
L513M21
C533M21
22NH
62PF
T507M21 DNP
109638038
4 S1 P1 6
2 S2
3 S3 P2 1
C532M21
39PF
5
NC
Schematics, Boards Overlays, and Parts Lists: Main Board Block: VHF (84012512001_A)
FL502M21
TS3A9E01S
R526M21
0
1 4
IN OUT
C514M21 C515M21
2PF 3.6PF
DNP
TL_RX_IF_OUT
OUT