Sansui TU-666 - AM Tuner Alignment

ALIGNMENT
Alignment procedures are summarized in this section.
of precision instruments as given below:
1.
2
3.
4
AM TUNER
Sweep generator;
. Oscilloscope;
FM signal generator;
Multiplex stereo generator;
ALIGNMENT PROCEDURE
FEED
5. AC vacuum-tube voltmeter;
6. Audio signal generator;
7. AM signal generator
Proper alignment requires use
DIAL ADJUST
STEP
ALIGN
GENERATOR
ic
CONNECT
SETTING
ADJUST
FOR
1.
IF
455
kHz
Antenna
|
Oscilloscope
to
Ts301
Best
I.F.T.
+30kHz terminals | 3D wave form
sweep generator
2.
OSC.
AM
signal
Antenna
|
Oscilloscope
535kHz
|
OSC.
coil
(Tz)
Maximum
(1) generator terminals | & V.T.V.M. to
535 kHz output load
400 Hz 30%
modulation
3.
OSC.
1600
kHz
Antenna
_
|
Oscilloscope
1600
kHz
|
OSC.
trimmer
Maximum
(2) 400 Hz 30% terminals | & V.T.V.M. to (PT 10s)
modulation output load
Reiterate 2,3
Antenna
600
kHz
Antenna
_
|
Oscilloscope
600kHz
|
Ferrite
antenna
Maximum
circuit
400
Hz
30%
terminals
|
&
V.T.V.M.
to
coil
(Loz)
(1) modulation output load
6.
Antenna
1400
kHz
Antenna
|
Oscilloscope
1400kHz
|
Trimmer
(PTio4)
|
Maximum
circuit 400 Hz 30% terminals | & V.T.V.M. to
(2) modulation output load
7. |Reiterate 5,6
Nn
a 1 —
AM IF CHARACTERISTIC
=
—10KHz 455 + 10KHz
Hz
i
E
;
E
3