NAD M56, Service Manual

Page: 21 / 101

TRAINING MASTER FOR BLU-RAY (BD)
2. NO PICTURE
2-1. Black Screen
The entire screen is black.
Does the BD on-screen
menu appear?
NO
YES
Make sure the customer did not select 480i resolution in the menu
of the BD player if using HDMI connections. Change resolution on
upconversion BD player by pushing the resolution button of the remote con-
troller. HDMI don’t support 480i resolution.
What cables is the customer
using to connect the BD?
NO
YES
Determine what cables the customer is using to connect the BD to
the TV and if connected properly. Refer to OM for connections.
Tighten any loose cables. Make sure the customer is not connecting a
BD to VCR or BD to DVD Recorder. Copy protection can distort
the picture on older VCR models.
Is the TV set to
the correct input?
NO
YES
Make sure the TV is on the correct input. Turn TV off,
then on to determine input. Video when using composite, or component.
DVI when using DVI, and HDMI when using HDMI.
Is the customer able to
watch TV programming?
NO
YES
If the customer is not able to watch television then he may have a
problem with his television, especially if the cable signal comes
through on a different input. If the customer can not get a TV program,
then he still may have a problem with the particular input on his TV.
Can the customer connect
the BD to another TV?
NO
YES
Have the customer connect the BD to another TV in order to
determine if the problem is the BD or the TV. Refer to the OM for
connections assistance. If the BD works on the second TV,
then the customer has a problem with his TV.
Has the customer tried
another set of cables?
NO
Have the customer try another set of cables. A bad cable can
also cause video problems. Test the cable with another device to the TV
to also determine if the TV is bad. If BD is problem, please see
service chart for service information.
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