Panasonic KX-FT21RS manual Control Section, Block Diagram, 100

100

							ANALOG PORT CONTROL
							I/O
	ROM (IC2)				SRAM (IC3)	ANALOG FRONT END (IC5)
	A0-17				A0-17		ANALOG SW
							(IC6)
					D0-7
	D0-7
	RD				RD
					WR		TX
					20.736MHz	TXOUT
+24V	IC7						RX
						RXIN
	LED ON	RD WR	-A017	D0-7
	+5V						H/S RX
							H/S TX
TO
CIS	CLK, SIG	CIS-CTL	ASIC		VOL		SP
			IC1
	24V						TO
		TH ON
	Q13			XRESETI			OPE PANEL
		HEAD-CTL			RS,E
					KSTART,KLATCH,KSCLK,KTXD,KRXD,KIN0,KIN1,KIN2,KIN3
		XWDERR
TO	STBI-2,THLAT
THERMAL HEAD	THCLK,THDAT						TO
		32.768KHz 24MHz
	5V					(IC7)	MOTOR
	(IC4)				T0,T2~T5	MOTOR
	RESET					DRIVER
	BACK UP				TO SRAM (IC3)

TO ANALOG

TO ANALOG

6.3.1.	6.3.
BLOCK DIAGRAM	CONTROL SECTION

KX-FT21RS