Canon MVX3 Instruction Manual page 160

❍ At cold temperatures, the screen may be darker than usual. This is not a
malfunction. The screen returns to normal when the camcorder warms up.
E
Viewfinder
❍ Extend the viewfinder and move it upward. Remove the
protect cover and clean the glass with a cotton swab.
Reattach the protect cover when finished.
❍ Be careful not to scratch the glass when cleaning.
Video Heads
❍ When the message "HEADS DIRTY, USE CLEANING CASSETTE" appears, or when
the playback picture becomes distorted, the video heads need to be cleaned.
❍ To maintain the best picture quality, we recommend cleaning the video heads
frequently with the Canon DVM-CL Digital Video Head Cleaning Cassette or a
commercially available dry cleaning cassette.
❍ Do not use wet type cleaning cassettes as this may damage the camcorder.
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