Radio Shack PRO-2035 Service Manual page 14

DeSSVM DeSSVM
I~I
1.\--.1
TP4
TP3
Unit
0
Unit
0
Under Test
Under Test
Figure 1 Figure 2
CH Frequency Voltage at TP3
CH2
520.000 MHz
20.8-21.2 volts
CH3 1000.000 MHz 9.0-13.0 volts
CH4
1300.000 MHz
21.8-22.2 volts
455 kHz NFM Discriminator Coil Alignment
Table 2
Control Setting Test Instrument Connection Adjust Result
OFFNOLUME control: ON.
Connect the signal generator to
T9 Set the signal generator lre-
SQUELCH control: CCW. the ANT jack and the OC quency to 520 MHz, 100
~V
Select channel 2. SSVM to TP2. output (no mod.) and adjust T9
See Figure 4.
lor 4.0!8· 3 volts on the OC
SSVM.
10.7 MHz WFM Discriminator Coil Alignment
Control Setting Test Instrument Connection Adjust Result
OFFNOLUME controt ON.
Connect the signal generator to T5
Set the signal generator tre-
SQUELCH control: CCW. the ANT jack and the OC quency to 520 MHz, 100
~V
Select channel 5.
SSVM to TP1.
output (no mod.) and adjust T4
See Figure 4.
lor 4.0!8·3 volts on the OC
SSVM.
AnI. Jack TPI or TP2
Unit
UnderTest DGSSVM
Signal
Generator
Figure 4
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