Cd Adjustments - Casio ZD-1 Service Manual

Pre-Adjustment Procedures
* Remove the bottom chassis assembly. (Refer pages 3, 4)
* Use the plastic screwdriver.
Equipment Required
* Oscilloscope
* Screwdriver (Plastic type)
Focus Sarvo Offset Adjustment (Figures 7 and 11)
Step Connect
1 See
Figure 7
Focus Servo E-F Balance Adjustment (Figures 8 and 11)
Step Connect
1 Play the regular disc.
See
Figure 8
Keep the
2
depressed.
Oscilloscope

CD ADJUSTMENTS

Setting Adjust
Play the regular disc. VR702
Oscilloscope
GND
Figure 7
Setting Adjust
VR702
button
GND
Figure 8
Adjust VR701 for the amplitude of the waveform
at maximum.
0V
Measuring on oscilloscope.
CD PCB
TP709
TP710
E-F balance signal
CD PCB
TP706
TP710
12
Result
>1.0V p-p
Result
A
0V
(Vref)
B
A=B