Figure 8-86. Mnus4002A/E Uhf2 Receiver Front End Circuit - Motorola APX 7000 Detailed Service Manual

Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: UHF2/ 700–800 MHz
INPORT IN
INPORT
IN
INPORT IN
R1910
1K
C1925
100PF
ANA_RX_FE_TUNE
C1928
TL_RX_UHF1_FE_IN
INPORT IN
DC_LIN_1_8V_A
DIG_CTRL_RXU
22K
1
Q1920
R1906 R1907
10K
10K
VR1905 VR1906
L1910 L1909
1SV305 1SV305
18NH 18NH
1 2 2 1
L1908 C1953
C1929 4.7NH 3.6PF
5.1PF
C1952
3.6PF
5.1PF
C1935 C1939
2.4PF 2.4PF
L1915
C1958
47NH
16PF
C1938
L1916
1.5PF
12NH
VR1910
C1941
1SV305
0.1UF
E1921
1 2
DC_RX_UHF1_LNA_C_13A
R1923 R1924
10K 33
MUN5212T
3
BC858CD INPORT IN
R1921 Q1922
C1924
75K
2 5
C1923 4.7UF
100PF
ANA_RX_FE_TUNE
R1925
Q1922
2.7
R1922 BC858CD
120K
L1935
24NH
C1920 C1922
C1940
4.7UF 100PF
100PF
R1936
C1936
0
7PF
L1934
72NH
R1935
C1931
1.2K
180PF
U1932
1
BFR380F
L1938
110NH
L1936
DNP
1.6NH
R1911
1K
R1908
C1954
R1909
10K
100PF
10K
VR1908
VR1907
L1913
L1914
1SV305
1SV305
18NH 18NH
1 2 2 1
L1912
C1963
5.6PF
C1956 3.9NH
C1957
3.6PF
5.6PF
C1959 C1961
2.4PF
2.4PF
L1917
C1942
51NH 16PF
C1960
L1919
1.5PF
12NH
VR1920
1SV305

Figure 8-86. MNUS4002A/E UHF2 Receiver Front End Circuit

8-187
C1964
3.6PF
OUTPORT
RF_RX_UHF1_FE_OUT
OUT