| 摘要 |
A mobile phone handset comprises a casing (2), a PCB (3) with volume control circuitry thereon mounted on the casing and a flexible strip (16) with conductive paths thereon connecting the PCB 3 with a volume control switch (20). Each electrically conductive path has a break in it which is located beneath the deformable volume control switch (20) so that when the switch is depressed, it deforms a metal part thereof and bridges the break in the electrical paths to complete the electrical circuit. The other end of each path terminates in a contact pad (24a,25a,26a) which may be formed around an aperture 18. The PCB 3 also has electrically conductive paths on it which terminate in contact pads on its undersurface. The PCB (3) is fixed on the casing (2) by retaining means such as a screw (13) which compress the electrically conductive contact pads on the PCB (3) and the flexible member (16) together to make an electrical connection therebetween and fix the PCB 3 on the casing 2. |
