NEC NDH-81 NDH-161 owner manual Troubleshooting, Symptom Cause Solution

Troubleshooting

Check the following guide for the possible cause of a problem before contacting service.

Symptom	Cause	Solution
No power.	The power cord is disconnected.	Plug the power cord into the wall
		outlet securely.
No picture.	The TV is not set to receive recorder	Select the appropriate video input
	signal output.	mode on the TV so the picture from
		the recorder appears on the TV
		screen.
	The video cable is not connected	Connect the video cable securely.
	securely.
	The connected TV power is turned off.	Turn on the TV.
	Progressive is set to ON, while the TV	Turn off the progressive scan (see page 16).
	cannot receive progressive scan
	mode.
No sound.	The equipment connected with the	Select the correct input mode on the
	audio cable is not set to receive	audio receiver so you can listen to the
	recorder signal output.	sound from the recorder.
	The audio cables are not connected	Connect the audio cable securely.
	securely.
	The power of the equipment connected	Turn on the equipment connected
	with the audio cable is turned off.	with the audio cable.
	The audio connecting cord is damaged.	Replace it with new one.
The playback picture is	The disc is dirty.	Clean the disc.
poor.
The recorder does not	No disc is inserted.	Insert a disc. (Check that the disc
start playback.		indicator in the display window is lit.)
	An unplayable disc is inserted.	Insert a playable disc. (Check the disc
		type, color system, and regional code.)
	The disc is placed upside down.	Place the disc with the playback side
		down.
	The disc is not placed within the	Place the disc on the disc tray
	guide.	correctly inside the guide.
	The disc is dirty.	Clean the disc.
	The Rating level is set.	Cancel the Rating function or change
		the rating level.
The picture from the	The video signal from the external	You cannot connect via this recorder.
external input is	component is copy-protected.	Connect the component directly to
distorted		your TV.
Some channels are	Those channels are not stored in the	Restore channels. See “Program Edit”
skipped over when	recorder.	on page 15.
using CH (+/-).
The picture or sound of	Aerial or cables are loose.	Tighten connections or replace cable.
broadcasting channel is		(AV1, AV2, DV, etc.)	Reference
A/V input or DV IN to
weak or missing.
Camcorder image is not	Camcorder is off.	Turn camcorder on and operate
shown.		properly.
Camcorder image via	The recorder’s source is incorrect.	Use AV/INPUT to select input channel
recorder is not shown
on TV screen.

53