Marantz DV4400, Руководство по обслуживанию

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1-6-5 E57M2TR
FLOW CHART NO.20
Both functions of picture and sound do not operate normally.
Replace the DVD Main CBA.
Replace the DVD Mecha.
No
Yes
No improvement can be found.
Original DVD Main CBA is poor.
FLOW CHART NO.18
[No Disc] indicated. (When the focus servo is not functioning.)
FLOW CHART NO.19
[No Disc] indicated. (When the laser beam does not light up.)
Replace the DVD Main CBA.
Replace the DVD Mecha.
No
Yes
Replace the DVD Main CBA.
Replace the DVD Mecha.
No
Yes
No improvement can be found.
Original DVD Main CBA is poor.
No improvement can be found.
Original DVD Main CBA is poor.