Panasonic UF-580 Technical Manual

Also see for DX-600: Network fax guide Service manual

20DX-600/800DEC 2003Ver 2.00UF-580/590/780/7901.1.10 Control PanelThe Control Panel consist of the Display PCB and Panel Unit, which display various status information. It isnormally interfaced to the main CPU. Keyed input signals are received by the Panel CPU and the data istransferred to the main CPU on the SC PC Board.The Control Panel performs the following processes simultaneously:• Key inputting• LED, LCD display• Data transmission / receptionInterface to main CPUThe interfacing between the main CPU and the panel CPU are all executed with commands and responsesin the following two formats:• Command / response (1 byte) + number of data + check sum• Command / response (1 byte) + number of data + data 1 + data 2........................ + data n + check sum.PNLCKPNLRDPNLSDPNLRSTBZCLK+5V+5VPGNDGNDnPWSAVEnWAKEUPnBPNTBATLVL20 characters, 2 lines, 5x7 dots controlLED, KEY scanning2888SCN (7:0)KIN (7:0)LEDKey matrix(59 keys)PNL1 PC Board11LED (1:0)LEDCT (1:0)From/toSCPCB