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Step
Control Setting
Test Instrument
Adjust
Remarks
.
Channel Programming
Connection
8
OFF/VOLUME control:
Connect Signal
T2
Alignment of 48.5 MHz and
ON
"
Generator to ANT,
T3
10.7 MHz WFM IF coils
SQUELCH control:
connector and
T4
1) Set the Signal Generator frequency
Fully CCW
Oscilloscope, AC SSVM,
T5
to 98 MHz
•
Channel Programming:
sa
LOAD to EXT
FM: 22.5 kHz DEV. at
1
kHz MOD
,
CH5 (98 MHz - WFM)
SPKR JACK.
output approx. 2 p.V.
(Figure 9)
2) Adjust T2, T3 to maximum
•
sensitivity.
NOTE
:
Alignment of T4, T5 are not
•
necessary.
.
When those core are turned, adjust
cores so that those tops of cores
become as high as those coil case.
SIGNAL
GENERATOR
ANT
connector
o
11
'
Figure 9
UNIT
UNDER TEST
•
EXT SPKR
•
",
an
LDAD
ACSSVM
•
OSCILLOSCOPE
Step
•
Control Setting
Test Instrument
Adjust
Remarks
Channel Programming
Connection
•
•
9
OFF/VOLUME control:
L1
Alignment of IF TRAP coils
ON
L55
•
1) Set the SignaI
Generator frequency
SQUELCH control:
Same as step 8
to 609.505 MHz
Fully CCW
FM: 3 kHz DEV.
1
kHz MOD.
Channel Programming:
Output, approx.
3 mV
CH7 (300.495 MHz -
2) Adjust L1 and L55 to minimum
NFM)
sensitivity.
•
10
OFF/vOLUME control:
L60
Alignment of 512 MHz TRAP
coil
.ON
1) Set the SignaI Generator frequen
cy
SQUELCH control:
Same as step 8
to 337.495 MHz
•
Fully CCW
FM: 3 kHz
DEV.
1 kHz MOD
,
Channel Programming:
Output, approx. 3 mV
CH8 (240.495 MHz
'-
•
2) Adjust L60 to minimum
NFM)
.
•
sensitivity.
••
• •
- 14-
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