Runco CX-40HD manual Maintenance and Troubleshooting, Troubleshooting Tips, Troubleshooting Chart

5. Maintenance and Troubleshooting

Table 5-1provides some general guidelines for troubleshooting problems you may encounter with the Crystal Series LCD Display. 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

Symptom		Possible Cause(s)		Solution
The display does not turn on	•	The Crystal Series LCD	• Ensure that the Crystal
after initial installation.		Display is not plugged in or		Series LCD Display is
		the AC outlet is not active.		plugged in and that the AC
				outlet is active.
	•	The remote control	•	Replace the batteries.
		batteries have run out.
The display is on, but there is	•	Incorrect source selection.	• Select the correct source.
no picture.	•	Source component is not	• Turn on the source
		turned on.		component.
	•	Source component is	•	Check video connections
		connected incorrectly or		to source component.
		not at all.
Picture is okay, but there is no	•	Audio output is muted.	• Press the MUTE button
sound.				on the remote control.
	• Volume setting is too low.		• Turn up the volume.
	•	Source component is	•	Check audio connections
		connected incorrectly or		to source component.
		not at all.
	•	Speakers are connected	•	Check speaker
		incorrectly or not at all.		connections (Figure 3-8).
	•	Audio settings are	•	Check the following
		incorrect.		settings: Digital Audio Out
				(page 36), TV Speaker
				(page 36) and HDMI Audio
				(page 41).
Image is too bright and/or	•	Contrast is set too high.	• Lower the contrast setting.
lacks definition in the bright
areas of the image.

5.1

Troubleshooting Tips

Image appears “washed out” and/or dark areas appear too bright.

Black or white dots appear on all channels or a specific channel.

•Brightness is set too high.

•Antenna or cable TV source is connected incorrectly or not at all.

•Broadcast signal is weak.

•Lower the brightness setting.

•Check the antenna or cable TV connection.

•If using an off-air antenna, adjust its position or location.

Runco CX-40HD/CX-46HD Owner’s Operating Manual 49