17
Test & adjustment
Next step is to calibrate the clock time base
The processor has an internal oscillator that is used to run the clock.
By means of CV1(TIME CALIBRATION), it is possible to adjust the oscillator
frequency if the clock does not run correctly.
1. Start by setting the trim capacitor in his center (50% overlap) position:
50%
2. should the clock run too fast, then turn the capacitor more in the maximum
(100% overlap) direction:
100%
3. should the clock run too slow, then turn the capacitor more in the minimum
(no overlap) direction:
0%
Summary of Contents for H8009
Page 19: ...19 PCB DIAGRAMS ...
Page 20: ...20 PCB 24 Transmitter PCB ...