President J.F.K. CB-Radio


ALIGNMENT PROCEDURE


CARRIER OSCILLATOR PORTION


Test equipment required:
Power Supply: 13,8 VFrequency CounterDC VoltmeterOscilloscope

StepConditionAdjustmentProcedure
1CH: 1
Band: Mid.
Mode: RX
L17Connect DC Voltmeter to TP1 (lead of R72). Adjust L17 for 1.2 V +/- 0.1 V on DC Voltmeter
2CH: 19
BAND: MID
POWER: Max.
AM, No Mod.
VC1Connect Frequency Counter to Ant. jack. Adjust VC1 for 27.185000 +/- 20 Hz on Frequency Counter.


RECEIVER PORTION


Test equipment required:
Power Supply: 13,8 VRF Signal GeneratorDummy Load 8 ohmOscilloscope
AF VTVM

Preparation alignment:
MIC GAINMax.
S/RF-SWR-CALS/RF
NB/ANLOff
RF SSGModulation: 30% AM 1000Hz
StepConditionAdjustmentProcedure
1CH: 19, BAND: MID
VOL: Max.
SQ: Min.
MODE: AM
L7, L6
L5, L4
L1
Connect RF SSG to Ant. jack and AC Voltmeter to Ext. Speacer. Then adjust coils for maximum reading on AC Voltmeter.
2VOL: Max.
SQ: Min.
MODE: AM
L2
L3
Adjust L2 for maximum output of noise level in LOW BAND CH 1. Then adjust L3 by same way of adjustment for L2 in HIGH BAND CH 40. Ant then adjust L2 by turn CW in LOW BAND CH 1 so that the same noise level of adjustment for L3.
3CH: 19, BAND: MID
VOL: Max.
SQ: Max.
MODE: AM
VR2Set the output level of RF SSG to 1000uV. Adjust VR2 for 2 V output reading on AC Voltmeter.
4CH: 19, BAND: MID
VOL: Max.
SQ: Min.
MODE: AM
VR1Set the output level of RF SSG to 100uV. Adjust VR1 so that the needle of built-in signal meter point "S-9".
5CH: 19, BAND: MID
VOL: Max.
SQ: Min.
MODE: FM
L801Adjus VOL to obtain 2 V output on AC Voltmeter. Set the level of RF SSG to 100uV. Adjust L801 for maximum reading on AC Voltmeter.


TRANSMITTER PORTION


Test equipment required:
Power Supply: 13,8 VFrequency CounterDC VoltmeterOscilloscope
AF VTVMRF Power MeterDeviation MeterAudio Oscillator

Preparation alignment:
S/RF-SWR-CALS/RF
MIC GAINMax.
StepConditionAdjustmentProcedure
1CH: 19
BAND: MID
POWER: Max.
AM, No Mod.
L19
L20
L18
At first, turn down the coar of L18 to end. Connect Oscilloscope to TP2 (lead of R79). Adjust coils for maximum reading on Oscilloscope
2CH: 19, BAND: MID
POWER: Max.
AM, No Mod.
L20
L15
L14
Connect RF Power meter to Antenna jack. Adjust coils for maximum reading on RF Power Meter.
3CH: 1, BAND: LOW
CH: 40, BAND: HIGH
POWER: Max.
AM, No Mod.
L11Adjust L11 for minimum difference between the follow conditions of the set:
CH: 1, BAND: LOW
CH: 40, BAND: HIGH
4CH: 19
BAND: MID
POWER: Max.
AM, No Mod.
VR3Adjust VR3 so that the needle of built-in TX Power Meter point Brank sone of "Sig. 9"
5CH: 19
BAND: MID
POWER: Min.
AM, No Mod.
VR501Adjust VR501 so that the RF output power level is over 1.5 V and under 4.0 V in every channel.
6CH: 1
BAND: MID
POWER: Max.
FM
VR801Connect Deviation Meter to Ant. jack and AF Oscillator to Mic jack. Set AF Oscillator to 30 mV output. Adjust VR801 for 4 kHz deviation.
7CH: 19
BAND: MID
POWER: Max.
AM, No Mod.
VC1Connect Frequency Counter to Ant. jack. Adjust VC1 for 27.185000 +/- 20 Hz on Frequency Counter.


This counter shows the number of hits since the 7th November 1999


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