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Frequency
TUNER
ADJUSTMENT
(Continued)
SW2 ALIGNMENT
Alignment
Adjustments
Remarks
INPUT
OUTPUT
Generator
Calibration
| Connect AM signal
oo
Ed
Obtain sine-wave of 400 Hz
of
generator to antenna
| Connect VTVM with
and maximum amplitude.
a
ae
Range | terminals (TP1 or
3.20hm dummy load
TP2)
and oscilloscope to
Adjustment
| through dummy
Phones/Ext. Speaker
es
[ ane [oe
of
antenna
terminal.
Tracking
(300hm/10 pF).
Repeat the above steps until no further change is noted in any of the adjustment.
Tuning Dial
Setting
Tuning Dial
;
Obtain symmetrical curve
and maximum amplitude.
Turn T2 (blue core)
Connect output
Connect input
fully counter-
terminal of gene-
terminal of gene-
clockwise.
scope to pin 3 of
scope to detector
T1
Nd
Calibration
1C1 through
output.
;
capacitor (10 pF)
(CN1-2 and CN1-1
10.7 MHz
Low End
or CN1-3)
Obtain S curve and
maximum amplitude.
T2 (blue core)
Alignment
of Signal
INPUT
OUTPUT
Generator
Calibration
Connect FM signal
| 87.2MHz
2MHz
a
a
Obtain sine-curve and
of
generator toantenna
| Connect
VT VM with
maximum amplitude.
Tuning Range}
terminals (TP1 and
3.20hm dummy load
TP2) through
and oscilloscope to
Adjustment
| dummy antenna.
Phones/Ext. Speaker
of
(750hm, unbalanced | terminal.
Repeat the above steps until no further change is noted in any of the adjustment.
FM MULTIPLEX ADJUSTMENT
|
38kHz (V.C.0.) ADJUSTMENT
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