Maintenance – Sanyo DWM-3500 User Manual
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MAINTENANCE
WARNING:
FOR YOUR PERSONAL SAFETY, BE SURE TO DISCONNECT THE AC POWER CORD BEFORE PROCEEDING WITH ANY
MAINTENANCE OR CLEANING.
Cleaning the Cabinet
Use a clean soft cloth moistened with plain lukewarm water and wrung dry. Never use benzol, benzene or other strong chemical
cleaners since these could damage the finish of your unit. It is important that no liquid reaches the inside of the unit.
Video Head Cleaning
The video heads are the means by which the unit reads the picture from the tape during playback. In the unlikely event that the heads
become dirty enough to be clogged, no picture will be played back. This can easily be determined if, during playback of a known good
tape, there is good sound, but no picture (picture is extremely snowy). If this is the case, use a high quality head cleaning system or
have them cleaned professionally.
Video head clogging
Good Picture
Snowy Picture
Video head cleaning is needed when the playback picture becomes unclear. This signifies that the heads are getting dirty and can occur
when playing poor quality or damaged tapes. If the heads require cleaning, use a equivalent high quality chemical non-abrasive (wet)
head cleaning tape or have them cleaned professionally. If playing a head cleaning tape in the unit once does not improve the picture,
play it several times before requesting service.
Notes:
•
DO NOT ATTEMPT TO CLEAN THE VIDEO HEADS OR SERVICE THE UNIT BY REMOVING THE TOP COVER.
•
Video heads may eventually wear out and should be replaced when they fail to produce clear pictures.
•
To help prevent video head clogging, use only good quality VHS tapes. Discard worn out tapes.
Video head cleanning
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