Equipment Required - Sanyo M1990FE Service Manual

EQUIPMENT REQUIRED
Generator Scope
Loop Antenna
VTVM
Distortion Meter
NOTE:
AM ALIGNMENT
Alignment
AM Standard Signal Generator
FM Standard Signal Generator
Stereo Signal Generator
Frequency Counter
Dummy Antenna (750, unbalanced type) for FM
e Oscilloscope
e Alignment Tool
Connections
Calibration
of IF
INPUT
Connect standard
loop antenna to
output terminal of
gene-scope.
Place loop antenna
60cm away from
bar antenna.
—_|_.
OUTPUT
Connect input
terminal of gene-
scope to detector
output terminals.
(TP9 or TP11,
and TP10)
Frequency
of Signal
Generator
Tuning Dial
Setting Remarks Adjustments
Obtain symmetrical curve
and maximum amplitude.
455kHz Low End
Calibration
of
Tuning Range
Adjustment
of
Tracking
Connect standard
loop antenna to
output of signal
generator.
Place loop antenna
60cm away from
bar antenna.
i ea
Connect VTVM with
330 dummy load
and oscilloscope
to Ext. Speaker
terminal.
and maximum amplitude.
1,670kHz High End TC4 (PVC)
1,400kHz | 1,400kHz TC3 (PVC)
1
Connections
Alignment
Calibration
of
IF
INPUT
Place output of
gene-scope on
Trap Coil (T1).
OUTPUT
Connect input
terminal of gene-
scope to detector
output terminals.
(TP9 or TP11,
and TP10)
Frequency
of Signal
Generator
Tuning Dial
Setting Remarks
Adjustments
Obtain symmetrical curve
and maximum amplitude.
Turn T3(blue core)
fully counter-
clockwise T2.
10.7MHz Low End
Obtain S curve and
maximum amplitude.
T3 (blue core)
Calibration
of
Tuning Range
Adjustment
of
Tracking
Connect signal
generator to antenna
terminals (TP1 and
TP2) through
dummy antenna
(750, unbalanced
type).
Connect VTVM with
33.0 dummy load
and oscilloscope
to Ext. Speaker
terminal.
maximum amplitude.
90MHz Max.
|
4
90MHz { u4
|
Repeat the above adjustment.