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RC-250L/LB
Tuner Alignment
Output Measuring:
Speaker terminal (Impedance = 3.202), output level 50 mW (0.4 V/3.2 92)
AM
IF & RF Alignment
Input (SSG):
Modulation 400 Hz, Modulated to 30%
r
Input Signal
|
Step
ore
Place to be aligned
Set the V. Capacitor to
an
Frequency
455 kHz
Repeat the Step 1, and adjust for no further improvement.
=
|
145 kHz
L8
Maximum
r
Loop Antenna
360 kHz
TC5
|
Minimum
Repeat the Steps 3 & 4.
LW
160 kHz
|
350 kHz
Repeat the Steps 6 & 7, and adjust for no further improvement.
520kHz
|
L7
Maximum
Loop Antenna
LL
1650 kHz
TC6
hire
Minimum
Given to
Loop Antenna
T2,4,7
Minimum
MW (IF)
r
L5
160 kHz Signal
Loop Antenna
|
TC4
350 kHz Signal
Fle
E lL
11
sa
Repeat the Steps 9 & 10.
FM IF & Discriminator Alignment
1. Connect the sweep generator to the test point TP-2 (Refer to Fig. 7).
Fig. 6-A
Fig. 6-B
Fig. 6-C
No. 1409
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