Video Head Cleaning - Sharp DV-RW250X Operation Manual

Problems and troubleshooting / Video head cleaning
SYMPTOMS
VCR
TV recording does not work.
Timer recording does not work.
Noise bars on screen.
OTHER
No 4:3 (16:9) picture.
No on-screen display.
Nothing appears in the display window.
No surround sound.
The unit or remote operation key is
not functioning.
Playback does not start when the
title is selected.
Audio soundtrack and/or subtitle
language is not changed when you
playback a DVD.
No subtitles.
Angle cannot be changed.
" " appears on the screen.

Video head cleaning

Video Head Clogging
The video heads record and playback pictures and sound on
the video tape. In the event that they become dirty you won't
be able to do a perfect recording and the playback picture will
be extremely snowy. Also, keep in mind that a poor tape
quality and a damaged cassette may contribute to the rapid
accumulation of dirt on the heads.
Automatic Head Cleaning System
The Automatic Head Cleaning System cleans the video heads automatically when a cassette is inserted and ejected
to prevent dirt from accumulating on the heads. However, manual head cleaning is needed if the picture on playback
is still unclear although the picture on program is normal. This failure signifies that the head is getting dirty and can
occur when playing poor quality or damaged tapes. If the heads require cleaning, use a high quality head-cleaning
cassette or have them cleaned professionally.
Attention:
Video heads may eventually wear out and should be replaced when they fail to produce clear pictures even after
having been carefully cleaned.
POSSIBLE SOLUTIONS
• The erase prevention tab of the video cassette is broken off.
• The unit is in the external input mode.
• The time is not set correctly.
• The recording start/end time is not set correctly.
• TIMER REC has not been pressed (
• Tracking adjustment beyond range of automatic tracking circuit.
Try Manual tracking adjustment.
• Video heads are dirty.
• The tape is worn or damaged.
• The setup does not match your TV.
• Select Display "ON".
• Check the DIMMER setting for SETUP.
• The setup does not match your stereo system.
• Turn off the unit and unplug the AC power cord for several min-
utes, then replug it.
• Check the Parental setup.
• Multilingual language is not recorded on the DVD disc.
• Some discs have no subtitles.
• Subtitles are cleared. Press SUBTITLE.
• Multi-angles are not recorded on the DVD disc.
• The function is prohibited with the unit or the disc.
is not lit).
Good Picture
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Snowy Picture
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