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President Jackson CB-Radio


ALIGNMENT PROCEDURE


RECEIVER PORTION


Test equipment required:
Power Supply: 13,8 VFrequency CounterDC VoltmeterOscilloscope
RF SSG8 ohm DUMMY LOAD

Connect oscilloscope across LF DUMMY LOAD at External Speaker.
StepConditionAdjustmentProcedure
1Band C, Channel 19
NB/ANL Off
MOD, S/RF: Off
PA/SQL: SQL
Clarifier: Center
RF Gain: Max.
AF Vol.: Max.
MODE: AM
Set RF SSG to 27.185MHz with 30%, 1kHz modulation.
2Same as STEP 1L6Turn the core of L8 to ClockWise maximum at the bottom.
3Same as STEP 1L5 L7 L8 L9Adjust coils for maximum reading on oscilloscope
4Same as STEP 1
Except
Band C, Channel 1
L6Set RF SSG to 26.965MHz. Adjust for maximum reading on oscilloscope. Then turn 1/4 turn AntiClockWise.
5Same as STEP 1VR1Set the RF SSG to 100uV output with no modulation. Adjust VR1 to obtain "S-9" on transceiver`s meter.
6Same as STEP 1VR2Adjust VR2 to turn off the squelch circuit when RF SSG RF output comes up to 1000uV
7Same as STEP 1
Except
MODE: USB
L3Set RF SSG to 5uV. Connect oscilloscope to TP-1 (D2) so that adjust for maximum reading.
8Same as STEP 1
Except
MODE: FM
L4Set the RF SSG to FM, 1kHz, 1.5kHz deviation, 1 mV output. Adjust L4 to obtain the maximum indication on oscilloscope