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Troubleshooting
This chapter provides suggested solutions to common problems that may occur when installing and using
the DVP1080MF.
Connecting the processor to the display
Which output scan rate should I choose for my display?
The appropriate output scan rate selection is usually determined by the actual native pixel
density of a digital display device.
Each display device will specify their individual video/computer input capabilities. All display
devices will list their specific video/computer input specifications within the User's Manual,
and are typically located within a "Table of Supported Resolutions", or under similar
nomenclature.
The following represent basic examples for possible output scan rate selections:
Display Type
Display resolution
Plasma TV
1366 x 768
Digital projector
1366 x 768
Note: Occasionally, a digital display device may not actually accept the signal received
from the processor at its native pixel resolution. Choose a standard DTV signal in this
instance, such as 1280x720 (default setting), or 1920x540 (1080i equivalent).
There are sparkles appearing throughout the image
Cable length is too long to support the output resolution selected on the processor
• Sparkles may occur if the resolution selected on the DVP-1080 processor has exceeded
the ability of the DVI cable to transmit all of the video data (missing bits = sparkles).
This is directly dependent upon cable quality (contact cable manufacturer regarding
length to resolution specifications).
• Unassisted DVI cable lengths to 50ft (15.24m) have been achieved with resolutions of
1024p and lower.
• Cable lengths of 50ft (15.24m), or greater, may require a DVI to Fiber Optic cable
connection between the processor and display for resolutions higher than 1024p;
consult Cable Manufacturer
You can also use a Meridian HDMAX 121 extender/booster at the display end to solve
problems like this. Contact your Meridian authorised dealer for details.
Is the DVP-1080 capable of passing/processing an HDCP
encrypted DVI/HDMI signal?
Yes. However, the DVI INPUT on the display device must also be HDCP compliant to view
the image, or the HDCP encryption "handshake" will be broken. If when using HDCP
encrypted signals there is digital "snow", or a message dialog box prompts you to make
an alternate connection, you should then check the display's Operations Manual to verify
DVP1080 scan rate
HDCP compliance.
1366 x 768
Note: A DVI signal that is HDCP encrypted will deactivate the ANALOG OUTPUTS.
1280 x 720
Which type of DVI cable should I use from the processor to the
display?
It is recommended to install a DVI-D, Single-Link cable connection.
The physical DVI connection IN and OUT of the DVP-1080 is a DVI-I, Dual-Link connector.
However, the DVP-1080 internal pin out configuration is for a DVI-D, Single-Link cable
connection. This allows for system connection flexibility. The display device will typically
have a DVI-D type connector.
What length of DVI cable can I use?
High resolution displays require a high quality DVI cable connection from the processor
to the display. DVI cables must be rated to support the scanrate and length to be
implemented; up to 50 foot non-fiber cables are okay for scanrates 1280x1024 and
below. Higher scanrates, such as 1920x1080p, require the DVI cable be rated to at least
T r o u b l e s h o o t i n g
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