Processor Operation - Meridian DVP1080MF User Manual

 
T r o u b l e s h o o t i n g
Note: Use the same procedure above during SET: PAL SCANRATE, if applicable
(International use)
I selected, SET: NTSC SCANRATE / 1920x1080, now there is no
video output.
The 1920x1080 output scanrate is a Progressive Format (67.43kHz), not a 1080i HDTV
Interlaced Format (33.75kHz). The display device must be capable of receiving this scanrate
(refer to display User's Manual).
When utilizing the DVI OUTPUT, cable lengths to support 1920x1080p should be no
greater than 16ft (5m). Cable lengths longer than 16ft (5m) may require a DVI to Fiber
Optic connection. DVI cable lengths longer than 16ft (5m) may render an unstable image,
"sparkles" throughout the image, or no image at all.
Note: Some digital displays may have a physical pixel density of 1920x1080, but will not
display the actual 1920x1080p/60Hz signal received by the DVP-1080 processor. Example:
1920x1080, 24p/sF. Think of 24p/sF as an Interlaced signal, whereby, a Progressive HD
Segmented Frame is displayed as two individual frames (similar to 1080i), then spliced back
together; an Interlaced Format.
Is SET: NTSC SCANRATE / 1920x1080 an Interlaced or Progressive
video signal?
The 1920x1080 output scanrate selection is a Progressive Format signal (67.4KHz, 60Hz
refresh). Typically, only high resolution displays will accept/resolve this input signal, such as
9"CRT projection, or a digital display device with a native pixel density of 1920x1080.
Note: Some digital displays will have a physical pixel density of 1920x1080; however, may
not accept this input scanrate. If not, the image may either be split, or half the image is
present, or no image at all. Refer to display user's manual for signal compatibility.
If the display does not accept 1920x1080 at 60Hz, then you must choose an alternate
resolution the display will understand, such as 1280x720 or 1920x540p (1080i equivalent).
Both output resolutions are perceived by the display as a DTV video signal.
WARNING
DAMAGE may occur if the output scanrate selected within the DVP-1080 SETUP MENU
exceeds theability of the display device to show the image.
Processor operation
The LCD is displaying an OVERHEAT WARNING.
The DVP-1080 processor possesses thermal protection circuitry which actively monitors
internal temperature during operation. Excessive heat may cause the processor to
malfunction, and/or, shorten product lifespan.
• Do not mount processor above power amplifiers or other equipment which generate
excessive heat
• Allow a minimum of one rack space, above and below the unit, for proper ventilation
(1RU or 1.75").
• Insure there is adequate system rack ventilation (preempts failure with additional
installed equipment)
• LEVEL 1 WARNING / HIGH TEMPERATURE
Internal Temperature is exceeding safe operational limits. Steps should be taken to improve
ventilation
• LEVEL 2 WARNING / HIGH TEMPERATURE
Internal Temperature is at critical thermal limits; processor failure may occur. Immediate
steps should be
implemented, to improve ventilation, and return the unit to optimal operational
temperature
• LEVEL 3 WARNING / EXTREME TEMPERATURE
Internal Temperature has exceeded maximum thermal limitations; processor will shut down.
• A LEVEL 3 WARNING will only display for Five (5) Seconds, then the DVP-1080 will shut
down
• DVP-1080 cannot be powered ON by the front panel power button during this condition
• A LEVEL 3 WARNING indication requires the unit first be unplugged to reset
• Normal operation resumes once the DVP-1080 has returned to optimal thermal
temperature