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Goldstar GST-3030 Service Manual page 7

Lw/mw/fm stereo tuner

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AM Alignment Chart
ing
Item
1
AM-IF
Mw
2
Osclil-
lator
MW
T rac-
king
LW
4
Oscil-
lator
LW
5
T rack -
®
Instrument &
F requency
AM IF sweep
Generator and
Oscilloscope,
or AM IF
generating''scope
AM SSG
515 KHz
(400Hz, 30% mod)
and
VT VM
AM SSG
1650 KHz
b | (400Hz, 30% mod)
and VTVM
_
——
=
|
Test Point
eee ei
er
Dummy
fre.)
Repeat the above Item 2-(a), (b) for Minimum change.
wise (Highest}
TC202
;
.
Adjustment
Input
Output
hss
Dial Setting
ene
Purpose
Terminal | Terminal
7
AM-IF
Detector} Generator!
Tuning-gang | T202
= |Adjust for maxi-
input
Output
| Output
fully coun-
T203
mum gain with
gy
wise
T205
(IF freq.)
te
| (Lowest fre.)
MW
Output
| None
Tuning-Gana
Adjust for
Ant
| terminal
Counter-
maximum gain.
or
clockwise
| T201
Detector
(Lowest fre.)
Output
Tuning-gang
fully clock-
AM SSG
360K Hz
b | (400Hz, 30% mod)
and VTVM
|
(Lowest fre.)
Tuning gang
fully
clockwise
(Highest
fre.)
Tune to
signal
(400Hz, 30% mod)
Detector
and
VT VM
Output
AM SSG
330K Hz
(400Hz, 30%
and VT VM
al
|
al
TC302
LW Ant.
|Adjust for
coil
Maximumyain.
TC301

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