Sanyo DWM-3500 User Manual download pdf (Page 66)

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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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Sanyo DWM-3500 User Manual Page 66