Casio ZD-3 Service Manual page 16

FM Alignment (Figures 2 and 3)
Step Alignment
1 Tuning range
calibration
2
1
Adjustment of
tracking
2
3
FM SG
FM dummy load
R1=Output impedance
R2=75 Ω - R1/2 Ω
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Frequency Tuning
of FM signal dial
generator setting
Low End
88 MHz
High End
108 MHz
90 MHz 90 MHz
106 MHz 106 MHz
Repeat the above adjustments.
Set
FM ANT
R2
R1
GND
of FM SG
Figure 2
14
Adjustment
Obtain sine-wave and
L3
maximum amplitude.
FM-OSC
L4
Max.
FM-RF
Output meter
J301
Headphone jack
GND
Dummy
load
32 Ω
Remarks
Oscilloscope
4754-022-0