Denon DVM-2845CI Service Manual page 23

FLOW CHART NO.18
[No Disc] indicated. (When the focus servo is not functioning.)
Replace the DVD Main CBA Unit.
No improvement can be found.
Replace the DVD Mechanism.
FLOW CHART NO.19
[No Disc] indicated. (When the laser beam does not light up.)
Replace the DVD Main CBA Unit.
No improvement can be found.
Replace the DVD Mechanism.
FLOW CHART NO.20
Both functions of picture and sound do not operate normally.
Replace the DVD Main CBA Unit.
No improvement can be found.
Replace the DVD Mechanism.
Yes
Yes
Yes
No
Original DVD Main CBA Unit is poor.
No
Original DVD Main CBA Unit is poor.
No
Original DVD Main CBA Unit is poor.
23
DVM-2845CI