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1. FM IF ADJUSTMENT
1) As The Distortion Meter Is Not Used
"Frequency
| Adjustfor [Adjustment |
98MHz
| DC OV+10mv
Repeat step 1 several times.
DC
UNIT
R122
©) VOLTMETER
[250B |
Figure 3. FM IF Adjustment Connection Diagram
2) As The Distortion Meter Is Used
Signal Generator ............. Connect to FM Antenna Terminal through the dummy.
(Adjust for the output of the generator to be 60dB at this time.)
VT M isch thszossa fevssedeeetetes Connect to the speaker terminal.
(Adjust for the indication of the VTVM to be 2V with volume.)
Distortion Meter ............... Connect to the speaker terminal.
(Rotate the T101 until the distortion meter is minimum T.H.D.)
DISTORTION METER
98MHz
Minimum T.H.D.
SIGNAL
GENERATOR
FMIN
SPEAKER OUT
Figure 4. FM IF Adjustment Connection Diagram
2. FM MPX ADJUSTMENT-SEPARATION
STEREO
OSCILLOSCOPE
Pilot Signal
Adjust for
| Adjustment |
Difference
of R
and
L must
be
maximum.
STEREO
MODULATOR
NOTE
: In case
of adjusting
the stereo
separation, if input is L (or R) channel, R (or L)
channel must be maximum.
Figure 5. FM MPX Adjustment Connection Diagram
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