NAD M56, Service Manual

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TRAINING MASTER FOR BLU-RAY (BD)
Is the disc inserted into
the BD player properly?
NO
YES
Make sure the disc has been inserted into the BD player properly.
The player can not read a disc inserted into the unit upside down.
What type of disc is
the customer using?
NO
YES
Determine the type of disc the customer is not able to play.
If the customer is using a store-bought movie BD,
then please skip the next three questions.
If it’s a recorded disc, move onto the next question.
Did the customer burn
this disc in a DVD recorder?
NO
YES
Make sure the customer finalized the disc in the DVD recorder.
Make sure the type of disc the customer is using is compatible
with the BD player. If the customer initialized a DVD-RW in VR mode,
make sure the owners manual has the RW logo to show
compatibility for the VR format.
Did the customer burn
the disc in a computer?
NO
YES
Make sure the customer burned a compatible format
(such as VCD, SVCD, or DivX). Make sure the file meets the
specifications required for the player to play the disc. Check the owners
manual for specifications. Disc may still not be compatible.
Refer customer to section of OM regarding burned discs.
Has the customer tried
multiple discs?
NO
One disc with the problem is a problem with the disc.
BD players can play scratched or dirty BDs (DVDs) and not have any issues
during playback. Multiple discs with the issue can mean
the lens on the BD player needs to be cleaned. Recommend a
lens cleaner. Service BD if lens cleaner was used.
5-2. Disc Error
The unit displays “disc error” when a disc is inserted into the BD player.
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