An intermediate arrangement for fastening a body of a portable communication device such as cellular phone or PDA to its base is provided. The dithering unit performs dithering on each pixel based on the dithering table, the gray-scale value, and the pass information. In addition, the bridge saddles are interconnected with the bridge base by octave adjustment screws, which are arranged beneath the plate using a prescribed attachment portion arranged inside of the hollow space of the body. A central connection point is disposed between two outer connection points viewed in both directions. The feedback line includes a circuit coupled between the bias node and the feedback transistor for causing a current to flow through the feedback transistor, and for increasing a resistance of a portion of the feedback line in parallel to the capacitor.