Fig; Rf Signal Waveform; Volt/Div : Suitable Value Time/Div : 500Ns; Volt/Div : Suitable Value - Sony RCD-W50C Service Manual
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RCD-W50C
4) Press the H button of Deck A. After playback starts, press
"OK". (Fig. 4-37)
5) When the message as shown in Fig. 4-38 appears some seconds
later, select 4x of the test mode (refer to page 22, Play Speed
Selection Mode (Deck A)) PLAYBACK SPEED. Then press
the H button of Deck A. After playback starts, press "OK".
6) As prompted by the message shown in Fig. 4-40, check that
the waveform as shown in Fig. 4-39 appears on an oscilloscope.
RF signal waveform
4 Fig. 4-39
7) As prompted by the message shown in Fig. 4-42, check that
the waveform as shown in Fig. 4-41 appears on an oscilloscope.
RF signal waveform
4 Fig. 4-41
8) Check that the message "CDR REC-CHECK completed!" appears.
NG Judgment Result Indication
4-4-1. CD-R Playback Measurement NG!
Contents : This message appears when the BLER (Block Error Rate) *Beta/m11 of the track that is recorded and played back, is outside
the specification.
Measure : Check if there is any abnormality in RBD1.
Replace KRM-220CAA.
46
VOLT/DIV : suitable value
TIME/DIV : 500ns
VOLT/DIV : suitable value
TIME/DIV : 500ns
4 Fig. 4-37
4 Fig. 4-38
4 Fig. 4-40
4 Fig. 4-42
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