Hitachi VM-H620A User Manual

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Basic Techniques 
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Note: The indication showing double speed playback does not appear. 
Note: When double speed playback is activated, both the picture and sound are played back 
at twice the normal speed. This will cause noise lines to appear on the picture and the sound 
to become warbled. (With some tapes the width of the noise band may vary or noise may 
flow.) 
Note: With some TVs, the synchronization may unlock and the picture may fluctuate or the 
picture may become black-and-white.