Figure 7-89. Hue4040A Receiver Mixer Schematic - Motorola ASTRO XTL 1500 Detailed Service Manual

Schematics, Component Location Diagrams, and Parts Lists: HUE4040A (UHF Range 2) Main Board
RECEIVED RF
L5381
MIXER_RF_IN
8.2nH
L5382
C5389
12nH
9.1pF
+24.5 dBm I/P from the injection amp
L5380
LO
12nH
R5388
51
NU
C5374
9.1pF
C5380 C5375
L5392
12nH
5.1pF 9.1pF
NU
NU
6815854H01-A
C5377
C5379
12pF
8.2pF
C5390
L5384
8.2nH
6.8pF
NU
R5389
0
L5383
R5381
3.3nH
0
NU
replace,2585040Y01
R5382 C5378 C5381
R5380
470 470
6.2pF 5.6pF
NU
NU
NU
NU
THE RECEIVER INPUT SIGNAL AND THE INJECTION SIGNAL
GENERATED BY THE RECEIVE SYNTHESIZER ARE MIXED
TO PROVIDE A 109.65MHz I-F SIGNAL.
109.65 MHz
I. F.
*T5381*
1
L5386
5
6.8nH
2
4
R5384 R5385
3
180
180
replace,2585040Y01
C5385
C5383
.01uF
.01uF
D5380
L5385
8.2nH
HIGH SIDE
INJECTION C5382
C5388
SIGNAL
.01uF .01uF
R5383
*T5380*
R5386
180
180
1
5
L5387
6.8nH
2
4
3
C5391
L5390
68nH
33pF
R5387
47
C5386
L5388
68nH
33pF
D5381
8.2nH
L5389

Figure 7-89. HUE4040A Receiver Mixer Schematic

7-117
IF
June 15, 2005