Denon DVD-2500BTCI Service Manual page 26

FLOW CHART NO.14
The disc tray cannot be opened and closed. (It can be done using the remote control unit.)
Is the normal control voltage inputted to Pin(3) of
IC2000? Refer to "FLOW CHART NO.12" <The key
operation is not functioning.>
Refer to "FLOW CHART NO.15" <The disc tray
cannot be opened and closed.>
FLOW CHART NO.15
The disc tray cannot be opened and closed.
[No Disc] indicated.
Picture does not appear normally.
Audio is not outputted normally.
Replace the BE Main CBA Unit.
No improvement can be found.
Replace the FE Main CBA & BD Mechanism
Assembly.
No
Yes
No
Yes
DVD-2500BTCI
Replace the "OPEN/CLOSE" switch (SW3006).
Original BE Main CBA Unit is poor.
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