Runco XP-50DHD Plasma Display User Manual

							Operation
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Color Space: Select Color Space from the Service menu to choose the color space of 
the source signal for HDMI, RGB, and component connections.
 The default setting, Auto, functions as follows:
HDMI: If the Auxiliary Video Information (AVI) infoframe contains color space and/or 
range data, the PlasmaWall uses that information. Otherwise, for RGB sources, the 
PlasmaWall uses the RGB-Video color space.  For component SDTV and EDTV 
resolutions, REC601 is used.  For other component video resolutions, REC709 is 
used.
RGB: If Hsync or Vsync signals are present, the PlasmaWall uses the RGB-PC color 
space. Otherwise, REC601 is used for SDTV and EDTV sources, and REC709 for 
all other sources.
Component: For SDTV and EDTV resolutions, the PlasmaWall uses the REC601 
color space.  For all other resolutions, REC709 is used.
In most cases, the Auto setting determines the correct color space to use. If it does not, 
you can force the PlasmaWall to use a specific color space. Choose one of the following:
REC709 sets the color space matrix to that defined in ITU-R BT.709.
REC601 sets the color space matrix to that defined in ITU-R BT.601.
RGB-PC uses RGB color space and sets black at 0,0,0 RGB and white at 
255,255,255 RGB, assuming an 8-bit image.
RGB-Video uses RGB color space and sets black at 16,16,16 RGB and white at 
235,235,235, assuming an 8-bit image, to correspond to the luminance values defined 
in digital component standards.
Triggers: Select Triggers from the Service menu to configure the 12-volt trigger outputs. 
You can assign one or more trigger outputs to each aspect ratio. Those triggers are then 
activated by selecting that aspect ratio. 
Miscellaneous: Select Miscellaneous from the Service menu to set the following options: 
Language: Select Language from the Miscellaneous menu and press the up- or 
down-arrows to select the OSD Language (English, Français, Deutsch, Italiano, 
Español, Svenska, Traditional Chinese, Simplified Chinese, Português or Russian). 
OSD Timer: Select OSD Timer from the Miscellaneous menu to set the OSD Timer, 
which controls how long the menus remain on-screen after selecting them. Select from 
5 to 60 seconds, in one-second increments. Or, set the timer to 0 (disabled) if you want 
the menus to remain on-screen indefinitely. 
OSD Messages: When you select a new aspect ratio, input source or memory preset, 
the DHD Controller briefly displays an on-screen message confirming your new 
selection. To prevent the display of these messages, select 
OSD Messages from the 
Miscellaneous menu to and set it to Off. 
Blank Screen Color: Select Blank Screen Color from the Miscellaneous menu to 
select the color that appears when no incoming signal is present. The range is from 0 
to 255 inclusive for each color component (red, green and blue). 
Sidebar Color: Select Sidebar Color from the Miscellaneous menu to change the 
color of the inactive image area. The range is from 0 to 255 inclusive for each color 
component (red, green and blue). The inactive image area is on either side of the active 
image area when using the 4:3 aspect ratio.
Film Mode: Use Film Mode to smooth out moving images from interlaced, 
standard-definition (SD) sources. In most cases, the PlasmaWall detects the proper 
“pull-down” rate and vertical frequency. However, if your source is jittery and/or tearing 
you may want to enable 
Film Mode to ensure stable processing for that source.  
						

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CUE (Chroma Upsampling Error) Correction: Some DVD players use MPEG 
decoders that do not correctly “upsample” the 4:2:0 format chroma information on the 
DVD to the 4:2:2 or 4:4:4 format required by the video encoder of the display device.
This so-called “chroma bug” sometimes causes streaky or spiky horizontal lines 
running through the chroma channel. It is most noticeable in static, interlaced scenes 
and on diagonal edges (especially red ones). Set 
CUE to On to correct this issue. 
Sync Threshold: Select Sync Threshold to adjust the threshold at which negative pulses 
on the component video green/luma channel are interpreted to be sync pulses.
Sync Threshold adjustment is occasionally necessary when a DVD player or HDTV source 
signal drops “below black” (for example, during scenes with explosions or when subtitles 
are present) and causes the display device to temporarily lose sync. If the sync level from 
the source is persistently too low, the display device won’t sync with the source at all. 
The range is from 0 (approximately 60 millivolts (mV)) to 15 (approximately 256 mV). 
HDMI EDID Extension: Extended display identification data (EDID) is a data structure 
provided by a display device to describe its capabilities to a graphics card. It is what 
enables a modern personal computer to know what kind of monitor is connected. 
Some modern display devices provide more information via EDID than others, in the form 
of “extensions.” Some computer graphics cards do recognize or properly interpret this 
extended EDID information. 
Select HDMI EDID Extension from the Service menu to specify whether or not the EDID 
extensions from the display device are passed through to the sources connected to the 
HDMI
 1 or HDMI 2 inputs. By default, the extensions are on. Change these settings only if 
HDMI EDID incompatibility issues arise.
Front Panel Brightness: Select Front Panel Brightness from the Service menu to adjust 
the brightness of the front-panel LED and LCD status indicators. 
 
Logo LED: Select Logo LED from the Front Panel Brightness menu to adjust the 
brightness of the large, illuminated logo on the left side of the display. The range is from 
0 (off) to 31. 
Standby LED: Select Standby LED from the Front Panel Brightness menu to change 
the behavior of the front-panel STANDBY indicator LED. When set to ON, the LED 
lights amber when the system is in standby mode; otherwise, it is off. When set to OFF, 
the LED is always off. 
LCD: Select LCD from the Front Panel Brightness menu to adjust the brightness of the 
front-panel LCD. The range is from 0 (off) to 4. 
Logo LEDLCDStandby LED 
						

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System Reset: To reset ALL controller settings (including image settings) back to their 
factory defaults, choose System Reset from the Service menu. 
A confirmation message appears. Select Yes to continue with the reset or select No to 
cancel. 
 
 
This action is not undoable. Proceed with caution! Before you 
perform a System Reset, save your “Custom” Memory Presets 
(
page 47) and ISF Day/Night Memory Presets (page 51).
Caution 
						

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Notes: 
						

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5.1 
Cleaning
Regular cleaning will extend the life and performance of the PlasmaWall. Before cleaning, 
be sure to unplug the power cord from the power outlet.
Cleaning the Display 
Panel Body and Remote 
Control
Do not under any circumstances use solvents such as benzene or thinner to clean the 
PlasmaWall. Doing so may cause deterioration or peeling of paint from the display or 
remote control unit.
Wipe the display and remote control gently with a soft cloth. In the case of excessive dirt 
buildup, dampen a soft cloth with a diluted neutral cleaning detergent and after wringing 
the cloth thoroughly, wipe the component and then dry it with a dry soft cloth.
Cleaning the ScreenAfter dusting, wipe the screen gently using the supplied cleaning cloth or another soft 
cloth (cotton, flannel etc.). Do not use tissue or a rough cloth. The screen surface is easily 
scratched; do not rub it or hit it with a hard object.
If you clean the surface of the screen with a wet cloth, water droplets on the surface may 
enter into the product and cause a malfunction.
Cleaning the VentsAs a general rule, use a vacuum cleaner about once a month to clean the vents on the 
rear panel of the display of dust buildup (set the vacuum cleaner to its weakest setting 
when doing this). If not removed, accumulated dust can cause the internal temperature to 
increase, resulting in possible breakdown or fire.
5. Maintenance and Troubleshooting 
						

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5.2 
Troubleshooting Tips
Table 5-1 provides some general guidelines for troubleshooting problems you may 
encounter with the PlasmaWall. If the suggested solutions fail to resolve the problem or if 
you encounter an issue not described here, please contact your Runco dealer or Runco 
Technical Support. 
 
Table 5-1. Troubleshooting Chart 
SymptomPossible Cause(s)Solution
The display does not turn on 
after initial installation.  The PlasmaWall is not 
plugged in or the AC outlet 
is not active. 
 
 The DHD Controller is not 
plugged in or the AC outlet 
is not active. 
 
The remote control 
batteries have run out. 
 The serial connection from 
the DHD Controller to the 
PlasmaWall is incorrect. 
 Ensure that the 
PlasmaWall is plugged in 
and that the AC outlet is 
active. 
 Ensure that the DHD 
Controller is plugged in 
and that the AC outlet is 
active. 
 Replace the batteries.  
 Ensure that the 
Display Control (RS-232) 
output from the DHD 
Controller is properly 
connected to the 
SERIAL 
input on the PlasmaWall 
(see 
Figure 3-4 and Figure 
3-5). 
The PlasmaWall and DHD 
Controller are both on, but 
there is no picture and 
on-screen menus do not 
appear.  Faulty or incorrect video 
connection between the 
DHD Controller and the 
PlasmaWall. 
 
 
 Ensure that the HDMI 
output from the DHD 
Controller is properly 
connected to the 
SLOT 2A input on the 
PlasmaWall (see 
Figure 
3-4). 
The display is on and menus 
appear, but there is no 
picture.  Incorrect source selection. 
 Source component is not 
turned on. 
 Source component is 
connected incorrectly or 
not at all. 
 Select the correct source. 
 Turn on the source 
component. 
 Check connections from 
source component to DHD 
Controller. 
Image is too bright and/or 
lacks definition in the bright 
areas of the image.  Contrast is set too high.  Lower the contrast setting.
Image appears “washed out” 
and/or dark areas appear too 
bright.  Brightness is set too high.  Lower the brightness 
setting. 
Colors in the image are 
swapped; for example, reds 
appear blue or vice versa.  The Red/Pr, Green/Y or 
Blue/Pb outputs from the 
source are connected to 
the wrong inputs on the 
DHD Controller.  Ensure that the source 
outputs are connected to 
the correct DHD Controller 
input.  
						

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RGB-HD images appear 
“noisy.” Clock and Phase settings 
need adjustment.  Adjust Clock and Phase 
settings (refer to 
Input 
Color on page 51).
Computer images do not dis-
play correctly. 
 The resolution and 
frequency of the video 
card in the computer are 
not compatible with the 
PlasmaWall. Select a compatible 
resolution and vertical 
frequency (refer to 
Supported Timings on 
page 76). 
The image is too large or too 
small. Image size needs 
adjusting.  Adjust the image size (refer 
to 
Input Position on 
page 45). 
Table 5-1. Troubleshooting Chart (continued)
Symptom Possible Cause(s) Solution 
						

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In addition to using the DHD Controller front-panel keypad or remote control unit, there 
are two methods of controlling the PlasmaWall and DHD Controller externally: 
 Using a serial (RS-232) link to send ASCII commands and receive responses to those 
commands.
 Using discrete infrared (IR) codes to program a third-party remote control unit.
The following sections describe both of these methods. 
6.1 
Serial Communications
The DHD Controller uses a simple text-based control protocol to take requests from 
control devices and to provide responses to such devices. This section describes how to 
send control messages over a serial link between the DHD Controller and an 
automation/control system or a PC running terminal emulation software.
RS-232 Connection and 
Port Configuration
To interface the PlasmaWall with an automation/control system or a PC running terminal 
emulation software, connect it to the Display Control output of the DHD Controller as 
shown in 
Figure 3-5. Connect your control system or PC to the RS-232 input of the DHD 
Controller as shown in Figure 3-11. 
Configure the RS-232 controller or PC serial port as follows: no parity, eight (8) data bits, 
one (1) stop bit and no flow control. Set the baud rate to 19200, to match that of the DHD 
Controller RS-232 port. 
Serial Command SyntaxSerial commands to the DHD Controller take the following form:
 Commands are not case-sensitive. 
 For a single command that takes no parameters, type the command followed by a 
carriage return; for example, to set the aspect ratio to Letterbox, type 
LETTERBOX
 . 
 For a single command that takes a parameter, type the command, a space or a 
comma and the desired value followed by a carriage return; for example, to set the 
brightness to -10, type BRIGHTNESS
 -10  or 
BRIGHTNESS,-10
 . 
 You can also send a string of multiple commands on a single line, separated by 
commas. For example, COMPOSITE,BRIGHTNESS
 50,16:9 switches to 
the Composite video input, sets the brightness to 50 and sets the aspect ratio to 16:9. 
Command strings can be up to 255 characters long. 
 
6. External Control
Avoid combining the ON or POWER 1 commands with other commands 
on a single line. After sending ON or POWER 1, allow at least five (5) 
seconds for the DHD
 Controller to power up. If you have enabled the 
ISF splash screen (refer to 
Splash Configure on page 52), allow 15 
seconds for the DHD Controller to power up. 
Once it does, it will accept and properly execute multiple serial 
commands. 
Note 
						

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Table 6-1 lists the RS-232 command set. The “Parameter (min/max)” column shows the 
valid parameter ranges, or “NA” for commands that take no parameters. 
When you enter a valid command, the DHD Controller executes it and acknowledges it 
with a plus sign on the command line (+ >). When you enter an invalid command – one 
that is misspelled or followed by values outside the valid range for that command – the 
DHD Controller ignores it and returns a minus sign (- >).
Table 6-1. Serial Commands 
CommandParameter 
(min/max)Value 
Stored?Description
Power On/Off Commands
OFFNANATurns display off
ONNANATurns display on
POWER0/1NATurns display on and off
POWER?NANAReturns power status
Input Selection Commands
COMPONENTNAYESSelects the Component input
COMPOSITENAYESSelects the Composite video input 
HDMI1NAYESSelects the HDMI 1 input 
HDMI2NAYESSelects the HDMI 2 input 
HD1NA YESSelects the RGB HD 1 input
HD2NA YESSelects the RGB HD 2 input
INPUT?NANAReturns active input
SCARTNA YESSelects the SCART input
SVIDEO1NAYESSelects the S-Video 1 input
SVIDEO2NAYESSelects the S-Video 2 input