Sanyo RB-7201 Service Manual page 22

MPEG AND FRONT END P.W.BOARD CHECK WAVEFORM
13
POWER KEY ON.
15
Play CD(When DVD play is all 0 level)
17
DVD paly(48kHz sampling 16bit)
DVD SKIP.
14
16
AC IN(STANDBY) as play.
DVD stop
18
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