[Breaking Down Samsung's Printer] More Than 70 Blue LEDs on Operating Portion [Part 6]
The substrate of the operating portion bonded on the face panel. Two LED controller ICs "PT6961" made by Princeton Technology Corp. of Taiwan are seen at the left upper corner of the picture. A buzzer "KPM1205A" made by Kepo Electronics Co Ltd of Taiwan is seen on the left bottom of the picture. A semi-conductor that looks like a micro computer was mounted on the right side of the buzzer. The letters "CP6688AM, 0731, KCR, 646306" are printed on the surface.