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RXD-M57MP
7
ADJUSTMENT
FM Alignment:
TEST UNIT
Figure 5. FM Band Frequency Coverage Alignment
Connect FM S/G to ANT inputs (mod 1 kHz 22.5kHz dev.)
Step S/G
Frequency
Dial
Setting Indicator
Adjust Remarks
1
87.5 MHz
Low end
Connect DC Voltage
meter to test point Vt
and ground
Confirm Vt:
1.7
±
0.2V
2
108 MHz
High end
Same as step 1
Confirm Vt:
8.5
±
1V
Figure 6. FM Band/Tracking
FM GENERATOR
DUMMY
ANTENNA
TP1
TEST UNIT
DUMMY
LOAD
VTVM
OSCILLOSCOPE
Vt
GROUND
DC
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