Alignment tuner
Function
Preparation
Signalinput
Adjusting | Indicated value
element
Wobble
at
10,7 MHz
Connect
sweep
generator via 10pF-capaci-
tor to TP3 and ground. Connect oscillos-
cope to TP4 and ground. Turn out core ne
T2 (blue).
Tl
Symmetrical curve
with maximum
sen-
sitivity at 10,7 f
0,2 MHz
T2
Symmetrical
S-
curve
with zero-
axis cross
at maximum
IF-gain
FM-Discri-
minator
FM -Corner-
Connect
RF-generator
to TP!
and TP2.
frequencies.
Connect voltmeter parallel 32-resistor
Repeat
ad-
to phono socket.
justment
Set pointer to left stop the lowest
87.5MHz;
4 kHz;} L2
Maximum
400Hz
108MHz;40kHz;
400Hz
frequency.
Set pointer to right stop the highest
frequency.
several
times
TC2
Maximum
veral times
40kHz;400Hz
Switch
to stereoposition. Connect
fre-
quency counter via 100kQ-resistor
to
TPS and ground.
19kHz t 20Hz
_
;
525kHz;400Hz;
30 %
1605kHz;
400Hz;30 %
AM-IF
(MW)
Couple RF-generator
to bar antenna
:
(20t). Connect oscilloscope to TP4
and ground.
MW-corner-
Couple
RF-generator
to bar antenna
frequenzies.
(20t). Connect voltmeter
(10M) para-
Repeat ad~
llel 32Q:--resistor to phono socket.
Set pointer to left stop the lowest fre-
T7
Maximum
quency.
Set pointer to right stop the highest
frequency.
justment
se-
veral
times
TC4
Maximum
headline
''2"
601kHz;400Hz;
|L4-1
Maximum
MW-tracking.
Set pointer
Repeat ad-
30 %
justment
se-
Set pointer to headline
"9"
1319kHz;
TCS
Maximum
veral times
400Hz;30 %
5.95MHz;400Hz;
30 %
7.3MHz;400Hz;
30 %
Set pointer to left stop the lowest
fre-
T6
Maximum
quency.
Set pointer to right stop the highest fre-
quency.
SWi-cornerfre-
quencies.
Re-
peat adjust-
ment
several
times
TC3
Maximum
—
jan)
°
6.005MHz;
L4-2
400Hz;30 %
6.755MHz;
400Hz;30 %
SW1-tracking.
Repeat adjust-
ment
several
times
Set pointer to headline "2"
Set pointer to headline
"9"
TC3
_
Connect
RF-generator
to TPi
and TP2.
Set pointer to left stop the lowest fre-
SW2-cornerfre-
quencies. Re-
9.5MHz;400Hz;
{| T5
Maximum
peat adjust-
quency.
30 %
ment
several
Set pointer to right stop the highest
21,.75MHz;
TC2
Maximum
times
.
frequency.
400Hz;30 %
po pt
s
SW2-tracking.
T4
Maximum
Repeat adjust-
ment
several
times
Set pointer to headline
"2"
10.232MHz;
400Hz;30 %
18 .592MHz;
400Hz;30 %
Set pointer to headline
"9"
TCl
Maximum