Advertisement
EQUIPMENT REQUIRED
»
AM Standard Signal Generator
FM Standard Signal Generator
Generator Scope
Stereo Signal Generator
Loop Antenna
Ceramic Capacitor (1 OpF)
Carbon Resistor (830kQ)
VTVM
Frequency Counter
NOTE:
Use an alignment tool with plas
MW ALIGNMENT
TUNER ADJUSTMENT
Dummy Antenna (3800/1 OpF) for SW2
Dummy Antenna (75Q, unbalanced type) for FM
tic grip for all adjustments.
Oscilloscope
Dummy Load (3.20)
Alignment Tool
Before
performing
the adjustment,
set the switches
and
controls as follows:
*
Function Switch ............cccccccccccseccceeeeeeuenes RADIO
*
Mode Switch .............c
ccc cece eeeeeceneee see eaes MONO
*)
"TONE: CONtrOlS: a. s.aascciceseeseeleeesvawiunosisde
odtanee' Max.
*
Balance Control .....................
Center (click position)
*
Volume Control ............c
cece ccees eee eseeeeneeenees Center
Standard Test Frequency 400Hz and Modulation 30% at AM
Frequency
Alignment
Calibration
terminal of
1
of IF
gene-scope.
for AM
60cm away f
bar antenna.
Calibration
of
Tuning Range | of AM signal
generator.
LU
Connections
INPUT
OUTPUT
Connect loop
antenna to output
Place loop antenna
Connect loop
antenna tc output
Connect input
terminal of gene-
scope to detector
output terminals
(CN1-1 and CN1-2,
or CN1-3).
rom
of Signal
Generator
455kHz
Tuning Dial
Setting
Remarks
Adjustments
Obtain symmetrical curve
and maximum amplitude.
Low End
T3, T4 and T5
Connect VTVM with
3.20 dummy load
and oscilloscope
Adjustment
Place loop antenna | to Phones/Ext.
of
60cm away from
Speaker jack.
Tracking
bar antenna.
510kHz
1,670kHz
600kHz
pale
nne
Obtain sine-wave of 400Hz
and maximum amplitude.
High End
600kHz
1,400kHz
L4-3 (bar ant. coil)
SW1 ALIGNMENT
Alignment
Calibration
of
Tuning Range
of AM signal
generator.
Connect loop
antenna to output
Connections
OUTPUT
Connect VTVM with
3.20 dummy load
and oscilloscope
Adjustment
Place loop antenna
to Phones/Ext.
of
60cm away from
Speaker jack.
Tracking
bar antenna.
an
Repeat the above steps until no further change is noted in any of the adjustments.
Frequency
of Signal
Generator
Tuning Dial
Setting
Low End
Obtain sine-wave of 400Hz
and maximum amplitude.
High End
2.5MHz
6.5MHz
TC3 (PVC)
Repeat the above steps until no further change is noted in any of the adjustments.
Advertisement
