STEP
SET SIGNAL
SET DIAL
ADJUST
ADDJUST FOR
1
465 KHz
GAND
T3(1 st IF)
MAXIMUM
2
CLOSED
T5(2 nd IF)
OUTPUT.
3
4
520KHz
GANG CLOSED
L5(AM OSC COIL)
5
1630KHz
GANG OPEN
CT4(AM OSC TRIM)
MAXIMUM
6
600KHz
BAR1(AM ANT COIL)
OUTPUT.
7
1400KHz
CT3(AM ANT TRIM)
8
STEP
SET SIGNAL
SET DIAL
ADJUST
ADDJUST FOR
MAX AMPLITUDE
BALANCED
10.7 MHz
CURVE WITH
2
OPEN
T4(2 nd FM IF)
10.7mhzAT ZERO
CROSSOVER.
3
STEP
SET SIGNAL
SET DIAL
ADJUST
ADDJUST FOR
4
87.5 MHz
GANG CLOSED
L4(FM OSC COIL)
5
108.5 MHz
GANG OPEN
CT2(FM OSC COIL)
MAXIMUM
6
90MHz
90MHz
L2(FM RF COIL)
OUTPUT
7
106 MHz
106 MHz
CT1(FM RF TRIM)
8
ALIGNMENT PROCEDURES
1.Set the BAND switch to AM
2.Connect an RF generator to a standard radiating loop
3.Connect a VTVM across the speaker voice coil.
REPEAT STEPS 1 AND 2 TO OBTAIN MAXIMUM OUTPUT.
REPEAT STEPS 6 AND 7 TO OBTAIN BEST TRACKING
FM ALIGNMENT
1.Set the BAND switch to FM
2.Connect an RF generator to the emitter of Q2 through a 0.1uF capacior and ground.
3.Connect an oscilloscope to pin 8 of IC I through a 0.02uF capacitor and ground.
1.Connect an RF generator to the FM antenna terminal and ground.
2.Connect a VTVM across the speaker voice coil.
REPEAT STEPS 6 AND 7 TO OBTAIN MAXIMUM OUTPUT.
1
GAND
T1(1 st FM IF)
REPEAT STEPS 1 AND 2 TO OBTAIN MAXIMUM OUTPUT.
