When a diaphragm formed in the shape of an oval is held by a holding member, an electrostatic electroacoustic transducer which allows stable tension without a diaphragm flexing is provided. A pair of metal mounting members are clicked on each pinched seal to allow the lamp to be mounted in a tubular quartz glass sleeve. Accordingly, when the digital broadcast receiver is automatically turned on according to the ON-timer function, the user can always watch the program on the screen which is currently on the air. A lateral cross bar tubing segment of the base ladder section is supported by hanging engagement on the hook brackets. The active device array substrate and the opposite substrate are assembled through the sealant, wherein the display medium is substantially filled in a region surrounded by the sealant to form the display panel and the groove is located between the sealant and a border of the active device array substrate. A storage device is selected from a selected data array of the plurality of data arrays to replace the failed storage device, wherein a data value corresponding to the selected data array is less than the data value corresponding to the first data array.