Sony RCD-W500C Service Manual page 43

Note :The clear RF signal waveform means that the shape "
RF signal waveform
4 Fig. 4-22
5) As prompted by the message shown in Fig. 4-24, check that
the waveform as shown in Fig. 4-23 appears on an oscilloscope.
RF signal waveform
4 Fig. 4-23
6) As prompted by the message shown in Fig. 4-26, check that
the waveform as shown in Fig. 4-25 appears on an oscilloscope.
RF signal waveform
4 Fig. 4-25
7) Check that the message "CDR PB-CAL completed!" appears. (The tray opens.)
NG Judgment Result Indication
4-2-1. Playback Measurement NG!
Contents : This message appears when the BLER (Block Error Rate) during playback is outside the specification.
Measure : Check if there is any abnormality in RBD2.
Replace KRM-220CAA.
VOLT/DIV : suitable value
TIME/DIV : 500ns
VOLT/DIV : suitable value
TIME/DIV : 500ns
VOLT/DIV : suitable value
TIME/DIV : 500ns
" can be clearly distinguished at the center of the waveform.
4 Fig. 4-24
4 Fig. 4-26
RCD-W500C
43