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President J.F.K. CB-Radio


ALIGNMENT PROCEDURE


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.