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TUNER
ALIGNMENT
TUNER C.B. ASS'Y IS DISTINGUISHED TWO TYPES AS FOLLOWS ;
FM DE-EMPHASIS
| TUNER C.B. ASS'Y
DESCRIPTION
50uSec
TFM-207GUA6
FOR EUROPE, AUSTRALIA
75uSec
TFM-207GUA3
FOR AMERICA, CANADA, OTHERS
BEFORE
ALIGNMENT
1. Tuning dial is set to the proper point corresponding to no radio stations.
2. Connecting the RF generator to antenna terminal use the dummy antenna, refer to figure.
3. Use the insulated screw-driver adjusting the IFT.
STANDARD
DUMMY
ANTENNA
aso
ee ee
1
|
204H
|
[ory
Sta
a
es
>
9
30.
125PF
4
ee 5a
ah
cues
4
cia
|
Ti
|
320 400PF
ssc |
| ANTENNA
299 |
| ANTENNA
750 |
ce
|
3000
son
|
1500
|
enn p+
7
;
—_
ie
ieee
eee
|
Base
Sates
a Sa
4
FM
AM
Fig. 10
Fig. 11
AM
ALIGNMENT
|
S
=
R312
'eee
JO
"ose
Cz @
—
AM
i
M
TCA
o
TP4
(AM
IN)-+-o2
=
Fig. 12
ADJUSTING
IF STAGE
1. Connect
the output of sweep generator set to 455kHz
to the AM INPUT
(TP4) of Tuner Circuit Board Ass'y (TFM-207).
2. Connect the input of sweep generator to the (TP5).
8. Adjust
the core
of I.F.T. T301
so that output
is at max
and symmetry
as
figure of right.
Fig. 13
a
oe
4VR-5436X
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