Motorola DCX3501M Set-top, Logic, Dolby Pro Logic II, Dolby Pro Logic, TV screen Top, Devices

Troubleshooting

B

	Problem	Possible Solution
	set-top	Verify that the home theater receiver is set to a surround sound audio mode (Dolby Pro
		Logic®, Dolby Pro Logic II®, Dolby Pro Logic IIx®).
		Verify that the receiver is properly configured to work with all connected speakers.
	There is no video on the	Verify that the TV is powered on and set to the appropriate input source for the DCX set-
	TV screen	top.
		Verify that the DCX set-top is powered on and tuned to an authorized cable channel.
		Verify that all video cables between the DCX set-top and the TV are firmly connected.
		Verify that the coaxial cable feed is firmly connected to the DCX set-top and the wall jack.
		If the DCX set-top video output is connected to a home theater unit, verify that the home
		theater unit is powered on and set to the appropriate input source.
		If the DCX set-top video output is connected to a TV through an HDMI connection, power
		off the TV and then power off the DCX set-top. Wait one second and then power on the
		devices.
		Not all HDTVs can display every output format (1080p60, 1080p30, 1080p24, 1080i, 720p,
		480p, or 480i) available on the DCX set-top. To select a different format:
		• Ensure that your DCX set-top is plugged into a power outlet and is turned off.
		• Press the MENU key on the front panel. Your settings are displayed on the DCX set-top
		front panel display.
		• Press the ▲ and ▼ keys to display the HDMI/YPbPr OUTPUT setting.
		• Press the ► key to cycle through the available output formats until a picture displays
		on the TV.
	No graphics or program	If you use the IEEE-1394 connection, on-screen graphics, including closed captions and
	guides appear on the	program guides, are not displayed by the DCX set-top. On-screen graphics and captions
	TV screen	may still be overlaid by your TV, if enabled. Alternatively, use HDMI or component video
		instead.
	No closed captions	Verify on the User Settings menu that closed captions are enabled on the DCX set-top.
	display	Verify that closed captions are enabled on the TV.
		Note: Closed captioning may not be available on the current program.
	There are black bars to	Wide screen TVs display 4:3 programs in this format unless set to Stretch. Turn on the 4:3
	the right and left of the	OVERRIDE feature in the User Settings menu. This enables most wide screen TVs to
	picture	stretch the video to fill the screen (see your TV manual for information about stretching
		4:3 video).
		If the DCX set-top is connected to a wide screen TV, verify that the TV TYPE is set to 16:9
		in the User Settings menu.
		Many HD programs are broadcast in pillar-box format with black bars to the left and right
		of the picture. These programs are broadcast in 16:9 HD formats even though the video is
		not 16:9.
	There are black bars	All 4:3 HDTVs display HD programs in letterbox format (black bars above and below the
	above and below the	picture) because of the shape of the display screen.
High-Definition All-Digital Dual Tuner DVR Set-top DCX3501–M • User Guide			47
365-095-16095-x.2