Motorola MTR2000 Manual page 33

A
44.85 MHz
L2404 Y2400
L2405
1 3
IN OUT
IF1_IN
GND
330nH 330nH
2
C2404 C2405 C2407
4.7pF 18pF 4.7pF
2-Pole Bandpass Filter
First IF Service Notes
Signal
Description/Nominal Signal Levels
Path
Input of First IF from Mixer IF port.
A
Output of First IF to Abacus Rf In port.
B
10V
AMPLIFIER
R2401
2200
R2402
C2401
1000
10000pF
R2403 C2402 R2404
100 470
10000pF
2V
6.5V
R2415
G1 D
4
2
10
1 V
C2403 Q2400
3 1
G2 S
5.6pF
L2406 C2408 R2408
910nH 8.2pF 2700 10000pF R2409 C2409
C2416 68 10pF
SH2400
R2400
C2400
220
10000pF
L2400 C2406
100pF
1800nH
L2401
44.85 MHz
470nH
Y2401
R2407
OUT 3
1 IN
GND
220
2
L2407 R2410
C2412
10pF 2200nH 10K
C2410 C2411
2.2pF 8.2pF
SH2401
4-Pole Bandpass Filter
ignore
RECEIVER MODULE
MODEL TRD6431C/TRD6411C
44.85 MHz
R2406
R2405
0.0
0.0
IGNORE
IGNORE
Y2402
L2403 L2402
1 IN OUT 3
GND
910nH
1200nH
2
R2411 L2408 C2413 C2414
4700 2200nH
8.2pF 8.2pF
B
IF1_OUT
C2415
R2412
.5pF
10K
IGNORE
FIRST IF
68P81094E11-D
Schematics (Sheet 9 of 27)
12/26/01