<FM ADJUSTMENT>
For adjusting FM, do wiring function and connection as in the following.
SET
Standard Signal Generator
TP
Lch
Rch
GND
measuring equipment
Connect to the respective
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 87.5KHz 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.
L903 L904
There is no gap.
GOOD
L903 L904
There is gap.
NG
AC MILLIVOLTMETER
CH2
CH1
GND
TP8
TP9
GND
– 43 –
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299