Vidikron VL 52 operation manual Maintenance and Troubleshooting

Maintenance and Troubleshooting

Table 5-1. Troubleshooting Chart (continued)

Symptom		Possible Cause(s)		Solution
Picture is okay, but there is no	•	Audio output is muted.	• Press the MUTE button on
sound.				the remote control.
	• Volume setting is too low.		• Turn up the volume.
	•	Source component is	• Check audio connections to
		connected incorrectly or		source component.
		not at all.
	•	Speakers are connected	•	Check speaker connections
		incorrectly or not at all.		(Figure 3-7).
	•	Audio settings are	•	Check the following
		incorrect.		settings: Speaker (page 34)
				and HDMI Audio (page 37).
				For HDMI audio souces,

ensure that the audio output format is “PCM” (refer to the manual for the source component).

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.

RGB-HD images appear “noisy.”

•The Red/Pr, Green/Y or Blue/Pb outputs from the source are connected to the wrong inputs on the DView.

•Clock and Phase settings need adjustment.

•Ensure that the source outputs are connected to the correct DView input.

•Manually adjust Clock and Phase settings, or perform an Auto-Adjust (refer to PC Mode Adjust on page 34).

“Invalid mode” appears on-screen.

The image is too large or too small.

•The resolution and frequency of the video card in the computer are not compatible with the DView.

•Image size needs adjusting.

•Select a compatible resolution and vertical frequency (refer to

Computer Signal Compatibility on page 57).

•Adjust the image size (refer to PC Mode Adjust on page 34).

46 Vidikron VL-52 and VL-57 Installation/Operation Manual