PRESIDENT BILLY, Service Manual, Page: 7 / 30

3. RECEIVER PORTION
A) CONDITION
SUPPLY VOLTAGE : 13.8V ( DC ) CHANNEL SET : 19 CH
ANT. LOAD IMPEDANCE : 50 П RF SIGNAL FREQ. : 27.185MHz
MOD. SIGNAL : 1 kHz, 30% Mod. RF SIG. OUTPUT : OdB = 0.5pV
STANDARD OUTPUT : 500 mW (2.0V) LOAD IMPEDANCE : 8 П
Set
all C ontrols a n d s w itc h e s a s fo llo w s u n le s s o th e rw is e s p e c ifie d .
SQUELCH : MIN.( FULLY CCW )
B) ALIGNMENT
STEP
CONDITION
OF THE
DEVICE
EQUIPMENT
CONNECTION
ADJUSTMENT
PROCEDURE
1
19 CH
Volume=Max
( fully CW )
Signal Generator
to J600.
AC Voltmeter to
J201.
L2 to L5
Adjust coils to maximum reading or
the AC Voltmeter.
Keep RF signal level of the sign
gen. to mee.t standard output level
slightly less level during this alignme
STD output at -2dB input.
2
Volume=Max
SQ = Max
( fully CW )
Ditto
VR1
Set RF Signal ouput level of the sign,
generator to 66dB, then adjust VR1 t
to just “open“ squelch.
LOCATION OF ADJUSTMENT ( RX )
6