| 摘要 |
<p>PURPOSE:To connect many units to one transmission line in cascade type and to conceal adjustable shafts behind decorative plates so that the adjustable shafts are prevented from being mistakenly touched. CONSTITUTION:The television community receiving units 7 are respectively provided with television terminals 7a and 7b, and many of them are connected to transmission lines 6a or 6d in cascade type. Television receivers 8 and FM tuners 9 are connected to the television terminals 7a and 7b. In respective units 7, the main frames 18 of cases are turned to face outside and are stored in wiring boxes and outlet boxes. The television terminals and the adjustable shafts 17 are revealed outside. The television terminals are connected to measur ing devices and the adjustable shafts 17 are rotated, whereby signal outputs from the television terminals are adjusted to optimum levels. The measuring devices are taken off and the decorative plates 12 are covered. Since the tele vision terminals are revealed from the decorative plates 12, the adjustable shafts 17 are concealed behind the decorative plates 12. The signals are outputted from respective units connected to the transmission lines at optimum levels.</p> |
