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ELECTRICAL ADJUSTMENT -3/6
<FM ADJUSTMENT>
For adjusting FM, do wiring function and connection as in the following.
Standard Signal Generator
7. TRACKING ADJUSTMENT
Requirement
Measuring equipment: millivoltmeter
Test point: TP8 (Lch), TP9 (Rch), GND
Adjustment point: L904
1) Adjust the S.S.G. setting to 87.5 kHz of 30% variation and reduce the output level
all the way (till a certain degree of is monitored through the oscilloscope).
2) Adjust L904 until the value of the milivoltmeter reaches the maximum.
GOOD
L904
L903
There is no gap.
SET
Lch
Rch
GND
NG
L903
L904
There is gap.
-36-
TP
Connect to the respective
measuring equipment
AC MILLIVOLTMETER
CH1
CH2
TP8
GND
GND
TP9
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