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RXD-M47MP
QQ
3 7 63 1515 0
FM Alignment:
Connect FM S/G to ANT inputs (mod 1 kHz 22.5kHz dev.)
Step
S/G Frequency
1
87.5 MHz
2
108 MHz
3
90.1 MHz
4
106.1 MHz
TE
L 13942296513
5
FM GENERATOR
www
.
8
ADJUSTMENT
TEST UNIT
Vt
GROUND
Figure 6. FM Band Frequency Coverage Alignment
Dial Setting
Indicator
Low end
Connect DC voltage
meter to test point Vt
and ground
High end
Same as step 1
90.1 MHz
Connect oscilloscope
or VT/VM to speaker
jack
106.1 MHz
Same as step 3
Repeat steps 3 and 4 to minimize tracking error.
DUMMY
ANTENNA
Figure 7. FM Band/Tracking
x
ao
u163
y
i
2 9
8
DC
METER
Adjust
L203
L204
VC202
Q Q
3
6 7
1 3
TEST UNIT
R-OUT
L-OUT
TP1
GND
.
9 4
2 8
Remarks
Adjust until Vt equal to:
1.5 ± 0.05V
Confirm Vt: 7-9V
Adjust until Maximum
output
Adjust until maximum
1 5
0 5
8
2 9
9 4
output
OSCILLOSCOPE
VTVM
DUMMY LOAD
m
co
9 9
2 8
9 9
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