Samsung SCX-4500 Service Manual page 29

Product specification and feature
2.2.3.5 Panel Part
It adapts CY8C21434 Touch IC interfaces through UART and PT6961 LED Driver IC controls 65 LED matrix and 15
status LEDs.
Touch Sensor IC - CY8C21434
2.2.3.6 Engine H/W configuration
1) Main Board
Main Board is consist of Engine and Controller on the one-Board.
Main board interfaces PC and communicates with Image Scan and LCD of OPE Panel. Video data comes out from
LSU. it senses and controls motor driving, Fuser high voltage, and sensors.
Service Manual
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Samsung Electronics