President Grant

CB-Radio

ALIGNMENT PROCEDURE

ADJUSTMENT

PLL-/CARRIER OSCILLATOR


Test equipment required:

       
Power Supply: 13,8 V Frequency Counter Dummy Load 50 ohm Oscilloscope
DC VTVM      


Preparation alignment:

   
Clarifier Mid.
SQ GAIN Max.
AF GAIN Max.
RF GAIN Max.
MIC GAIN Max.
MOD, S/RF S/RF
NB/ANL Off
RF SSG Modulation: 30% AM 1000Hz
Step Condition Adjustment Procedure
1 MODE: RX AM
Ch. 19 MID.		 L17 Connect oscilloscope on TP4. Adjust for maximum reading.
2 MODE: RX AM
Ch. 40 MID.		 L18 Connect DC Voltmeter on TP2. Adjust to obtain 5,5Volt.
3 MODE: RX AM
Ch. 19 MID.		 L19 Connect oscilloscope on TP3. Adjust for maximum reading.
4 MODE: RX AM
Ch. 19 MID.		 L25 Connect Frequency Counter on TP3. Adjust to obtain 16.490MHz +/- 20Hz.
5 MODE: RX USB
Ch. 19 MID.		 L26 Connect Frequency Counter on TP3. Adjust to obtain 16.4925MHz +/- 20Hz.
6 MODE: RX LSB
Ch. 19 MID.		 L27 Connect Frequency Counter on TP3. Adjust to obtain 16.4875MHz +/- 20Hz.
7 MODE: TX LSB
Ch. 19 MID.		 VR6 Connect Frequency Counter on TP3. Adjust to obtain 16.875MHz +/- 20Hz.
8 MODE: RX AM
Ch. 19 MID.		 L22 Connect Frequency Counter on TP3. Adjust to obtain 16.040MHz +/- 20Hz.
9 MODE: RX USB
Ch. 19 MID.		 L23 Connect Frequency Counter on TP3. Adjust to obtain 16.0425MHz +/- 20Hz.
10 MODE: RX LSB
Ch. 19 MID.		 L24 Connect Frequency Counter on TP3. Adjust to obtain 16.0375MHz +/- 20Hz.
11 MODE: RX LSB L30 Connect Frequency Counter on TP6. Adjust to obtain 16.6975MHz +/- 20Hz.
12 MODE: RX USB L29 Connect Frequency Counter on TP6. Adjust to obtain 16.6925MHz +/- 20Hz.
13 MODE: TX AM L28 Connect Frequency Counter on Base from TR43. Adjust to obtain 16.6950MHz +/- 20Hz.
       

#DréCB {} 1999

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