| 摘要 |
<p>PURPOSE:To prevent a semiconductor from breaking down by performing surely electric connection of a pair of connectors placed between the semiconductor and a control circuit before an electric source switch is turned ON. CONSTITUTION:An electric source switch 15 is placed between an electric source and a control circuit. A receptacle 40 (the first connector) connected with the control circuit is fixed on the front wall 11a of a housing. An operating part 17 of the electric source switch is fixed on the front wall in the neighborhood of the receptacle. When a plug 30 (the second connector) connected with a semiconductor such as a CCD is inserted into the receptacle 40, connectors 32 and 42 of both sides are electrically connected,and as the result, the control circuit and the semiconductor are electrically connected. Thereafter, a connecting ring 35 of the plug 30 is screwed into the receptacle 40. In the process for screwing work of this connecting ring 35, the electric source switch 15 is turned ON by pushing the operating part 17 by means of the connecting ring 35 and the electric source and the control circuit are connected.</p> |
