Hitachi VT-F380A ユーザーズマニュアル

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Getting Started (Initial Setup) 
 
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When you set the option to HIFI, hi-fi tapes will play in high fidelity, and  non-hi-fi tapes 
will play in linear mode. 
Stereo vs. Mono Sound 
When you select the STEREO option, your VCR records in stereo any station that 
broadcasts stereo sound.  When a TV channel broadcasts in stereo, you'll see a stereo 
indicator on the TV screen. 
STEREO is the normal factory setting because it works for both stereo and mono 
broadcasts.  It is also necessary for recording a second audio program (SAP). 
When you select MONO, sound is recorded as mono even when a channel broadcasts 
in stereo. 
Use the MONO setting when the stereo signal is not strong enough for quality reception 
(for example, when there is signal drift or noise). 
Hi-Fi Sound 
Hi-Fi sound is the same quality as that of a compact disc player.  Its dynamic range of 
over 90dB will record either stereo or monaural broadcasts with the highest quality 
possible.  Linear sound, on the other hand, will record monaural sound using the same 
format as a non hi-fi VCR.  Stereo programs are recorded in hi-fi on both the left and 
right channels and also recorded on the linear track as monaural.