Service manual

2000 SERIES RECEIVER DECODER MODULE (RDM)
3-26
March 2000
Part No. 001-3139-502
Figure 3-37 900 MHz RECEIVER TEST SETUP
FREQUENCY COUNTER
OSCILLOSCOPE
AUDIO DISTORTION
ANALYZER
HP 334A
AC
VOLTMETER
VOLTMETER
DC
COMMUNICATIONS
SERVICE MONITOR
INTERFACE BOARD
D
M
C
V
R
M
M
R
M
D
V
M
TM
OCXO2
DELTA F
OUTPUT
AC
DC
OCXO1
OCXO 2
INTERRUPT
OCXO 1
INTERRUPT
INTERRUPT
DC BACKUP
RECEIVER
RECEIVER
RECEIVER
RECEIVER
POWER SUPPLY
L220
L201
L202
L203L204
L205
L206
L223
L224
TP5
L207
L229
L209
L211
L231 L225
Z213
R284
R261
R264
U206
TP3 TP4
J201
1
2
19
20
TP6
U207
Y201
TP1
U208
U210
U208
1
4
58
1
4
5
8
1
4
58
1
4
58
1
10
11
20
6
20 dB
1.25 MHz