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A. S.G. – Coupling.
Connect the S.G. output through a capacitor (50 pF) between VC4
and chassis earth.
B. S.G. – Frequency...............................455 KHz.
C. Adjust -
Adjust the cores of I.F. transformers T1, T2, T3 and T4 for a
maximum deflection on the "S" meter in a front dial.
-4
R.F. AMPLIFIER ALIGNMENT
NOTE: Alignment tool, nominal position of knobs and receiver
condition should be required as Item 2.2-2 and 2.2-3.
A. S.G. – Coupling.
Connect the cable of S.G. output through a dummy antenna
between A1 and GND on the antenna terminal. See Fig. 9
B. S.G. – Frequency.
Three points characteristic alignment should be required on each
A to D pass band. The plot frequency and modulation shall be
positioned as follows:
BAND A
BAND B
BAND C
BAND D
MODULATION
C. Connect - V.T.V.M. or equivalent.
Connect an a-c vacuum tube voltmeter or equivalent to a phone
jack with 8 ohms dummy load. Keep clear of low impedance
speaker voice coil.
0.6 MHz, 1 MHz & 1.4 MHz
1.7 MHz, 2.8 MHz & 4 MHz
5 MHz, 8 MHz & 12 MHz
14 MHz, 21 MHz & 28 MHz
1 KHz, 30%
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