| 摘要 |
The circuit improves a productivity, verifies a record condition and is capable of surround function for normal video tape. The circuit includes a sound erase head (1), a record/regeneration head (2), an oscillator (6), an automatic level control unit (7), a line amplifier (8), an equalizier amplifier (9), a record amplifier (10), and a record equalizer (11). The circuit also includes a mode selection means which selects a power supplies such as a record, monitor and surround power, an audio regeneration circuit driving means which controls an audio circuit, a voice output control means and a main voice output control means.
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