C H E C K I N G T H E WAV E F O R M S
To check the waveforms on the SERVO P.W.B., the GND (�) probe of the Osilloscope to � ref� point. NOTES MEASURING DISC : DVD / DVDT-S01 CD / TCD-784A (It is better to use wires for extending between the probe and test points.) � When watching the HF waveform, use the extending wire as short as possible. � When HF waveform is noisy or can not discriminate the eye-pattern, replace the Traverse Unit after measuring the Iop. � Test points 1 ~ $ are shown below.
