| 摘要 |
PURPOSE:To reduce the number of component parts and facilitate replacing a component part, by a construction wherein the back side of a metallic chassis and a soldered side of a circuit board are disposed in proximity to each other, and the board is so mounted that it can be turned with an end thereof as a center. CONSTITUTION:The circuit board 7 is fitted with various electronic parts on the back side thereof, the soldered side thereof is directed upward, and it is disposed in proximity to the chassis 1. One end of the board 7 is turnably borne by a hinge 7a, which is detachably fitted to the board 7 by a press-fitting or hook construction, and has a hinge pin 12. On the other hand, a detachable cover 13 is provided which constitutes a major part of a lower half of a lower casing 9, and is detachably fitted into an opening part 9b provided in the lower half of the lower casing 9. |
