POSIFLEX Business Machines PP3000 manual Circuitry Layout & Connectors, CN3 Power switch connector

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CIRCUITRY LAYOUT & CONNECTORS

	CN2	CN1							CN3
U1
		U5				U2	JP1	JP2	SP232ACP
							1
							3		U3
		TMP90C041AF
JP3 JP4						U6			CN4
1
3	EDG	8
		7
		6
		5
		4				2	M27C512
CN5		3			1				CN6
		2			5	6
SW1	ON	1
					JP5	U8
			JP6	JP8	JP10 JP12
	EDG		3
		8
		7	1
		6	JP7	JP9	JP11 JP13				CN7
		5							CN9
		4
		3
		2	B303 6DAHG
SW2	ON	1
CN8	EDG	8
		7
		6	U11
		5
		4
SW3		3
		2
	ON	1
		1
	EDG	3	JP14
		4
CN11		3
		2
SW4	ON	1
			PST-PRT001A-TJ						JP15
BZ1	U16								CN10
									BAT1

Fig. 17 Board layout

CN1 : Reserved

CN2 : Control panel connector

This CN2 connector connects the control panel board through cable CCBLA- 189.

CN3 : Power switch connector

This CN3 is connected to cable CCBLA-188 to connect to the printer power switch.

CN4 : Serial interface connector

This connector is used to connect the host computer by RS-232Cor RS-422A. The MAX232A has to be installed in U3 to use RS-232 interface and MC3451

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