MEASUREMENT AND ADJUSTMENTS
ALIGNMENT INSTRUCTIONS
REMARKS
SIGNAL
GENERATOR
or
1
1
BAND
1
SWEEP GENERATOR
1
SETING
I I
CONNECTIONS FREQUENCY
1
1
OSCILLOSCOPE)
1 1
1
I
READ CAREFULLY BEFORE ATEMPTING ALIGNMENT
I
INDICATOR
f~~~~~~~~
1
SW-RF ALIGNMENT
I
ADJUSTMENT
5. Set FM
mode1B.P switch to STEREOIII.
6. Output of signal generator should be no higher than necessary to
obtain an output reading.
1. Set volume control to maximum.
2. Set band switch to LW, MW, SW or FM.
3. Set function selector to radio or tape.
4. Set power source voltage to 12V DC.
Jack
(32~)
Tuning capacitor
Fabricate
the plug as
1
LIO
1
~djust for maxi-
5.75.H~ f~lly closed.
1
/
shown in
Fig.
2 and then
connect the lead wires
1
(SW OSC
mum Output
of the plug to the meas-
Connect to test point
uring instrument.
through
I
ceramic capacitor
18,8
MHz
Tuning capacitor CT4 (SW OSC
(11) (10 OF). fully open. Trimmer)
W
LW, MW
and
SW ALIGNMENT
Adjustfor maximum
steps
(1 0-(12)
(12) SW
SIGNAL GENERATOR or
SWEEP GENERATOR
BAND
1
,
.
1
RADIO DIAL
SETING
CONNECTIONS FREQUENCY
1
AM-IF ALIGNMENT
1
FM ALIGNMENT
INDICATOR
(ELECTRONICS
VOLTMETER or
OSCILLOSCOPE
459kHz
30% Mod. at
400Hz
ADJUSTMENT
(1)
Point of non-
interference. (on/
about 600 kHz)
REMARKS
Headphones
Jack
(32R)
Fabricate the plug as
shown in Fig. 2 and
then connect the lead
wfres ofthe plug to the
MW
Adjust for maximum
output
Fashion a loop of
several turns of wire
and radiate signal into
loop ant. of the
receiver.
REMARKS
T2 (AM IFT)
SIGNAL GENERATOR or
INDICATOR
(ELECTRONICS
VOLTMETER or
OSCILLOSCOPE)
RADIO
DIAL
SETING
1
BAND
1
SWEEP GENERATOR
ADJUSTMENT
1
LW-RF ALIGNMENT
I
2
I
FM-IF ALIGNMENT
CONNECTIONS
1
FREQUENCY
5.75
rii
1
(E)(EB)
...
l36kHz
1
(EG) ...137*5kHz
CT3 (LW OSC
Trimmer)
Tuning capacitor
fully closed.
T3 (FM 2nd
1
FT)
Wave form is
shown in Fig. 4.
FM-RF ALIGNMENT
1
I
(*I
)
L5-1 (LW
ANT Coil)
Headphones Jack
(E)(EB) ... 86.2MHz Variable
L4(FM OSC
1
(EG)
...
87.35MHz Pacitor
closed.
1
f50kHz
Connect to test
ouiput. ~djust ~5-1
by moving the ferrite
core.
('2)Adjust for
maximum
output.
285 kHz
point through Variable
ca-
FM dummy antenna
CT1-1 (FM
Negative side to test
f50kHz open.
OSC Trimmer)
point
I
CT2(LW ANT
1
Trimmer)
I
(+I) Cement antenna ferrite core with wax after completing alignment.
Adjust for maximum
Output.
Repeat steps (2)-(5).
1
MW-RF ALIGNMENT
1
1
106 MHz
1
Tune to signal.
1
1
CTI
-2 (FM ANT mum output. Re-
Trimmer) peat steps (15)
-
(E)(EB) ... 511 kHz Tuning capacitor
(EG) ... 514+3kHz fully closed.
Lg(MW
OSC
Coil)
Adjust for maximum
I
output.
1
1
(17).
responses will be present; proper tuning is the center frequency.
(E)(EB)..I~~O~H~/ Tuning capacitor
(EG)..1639+5kHzl fully open.
CT1-3 (MW OSC
Trimmer)
Adjust for maximum
output. Adjust L5-2 by
moving the ferrite
core.
SEPARATION ALIGNMENT
COUNTER
-
Adiust VRl
.
for 19kHz
f
50
'(2) L5-2(MW
ANT Coil)
550 kHz Tune to signal.
to test
pointmth;ough FM
dummy antenna.
Negative side
tom
1
1
CT1-4
15OOkHz
1
''
i
I
(AM ANT Trimmer)
I
HZ'
reading on frequency
counter.
Adjust for maximum
output. Repeat steps
(6)
-
(9).
1
('2) Cement antenna ferrite core with wax after completing alignment.
1
.-
I
ID
HEAD AZIMUTH ALIGNMENT
i
1
TESTTAPE EQU~PMENTCONNECT~ON ADJUSTMENT
j
SPEclFlcATloN
ELECTRONIC COUNTER
I
REMARKS
~
I
1
\measuring
instrument
I'
I I I I
QZZCFM
(8
kHz, -20 dB)
Headphones Jack (32R)
/~abncate
the
plug
as
shown
~n
Fog
2
and
I
fhenconnecttheleadwlresoftheplugtothe
)
Azimuth screw
(Shown in Fig.5)
Maximum
output.
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