Panasonic KX-TC1205RUW, KX-TC1205RUB, KX-TC1205RUS, KX-TC1205RUF manual Block Diagram Base Unit, IC1

Page 36

14 BLOCK DIAGRAM (BASE UNIT)
H/S	ANTENNA		10.7MHz	RF FILTER	455kHz
				RF FILTER
				CF1, CF2
		RX VCO				TELEPHONE LINE
		RX VCO					INTERFACE
	DUPLEXER	L10, C26					INTERFACE
		L10, C26

	DPX1			RF IC
				RF IC		17		·• TEL LINE
				IC1		17		·• TEL LINE
				IC1		EXP		SW RY1
		RF AMP	MIX 1/2			TEL		SW RY1	DIODE
		RF AMP				TEL			DIODE
		Q1, T2				LINE			BRIDGE
		Q1, T2				LINE			BRIDGE	TEL LINE
	RX LOOP			RF		AMP		·• LINE	D2, D3,	TEL LINE
	RX LOOP					AMP		·• LINE	D4, D5
						Q11, IC3			D4, D5
			PLL OSC	-DATA		14		SEIZURE
	X1		PLL OSC	-CLK		COM		Q10
	X1			-CLK
				-STB
	TX LOOP		VC1
			VC1			POWER SUPPLY
						POWER SUPPLY
						RESET CHARGE
		POWER	DC 5V			5V			DC IN
		POWER				5V			12V 150mA
36		CONTROL				REGULATOR			12V 150mA
		CONTROL				REGULATOR			(AC Adaptor)
		Q2				Q18, Q19			(AC Adaptor)
	RF AMP	TX VCO				X2			AC DOWN
	RF AMP	TX VCO				X2			DTC
	Q3,Q4, T5	Q5, T6, DV1							DTC
									Q8
			VTX	RF	RX	RESET
				-DATA	DATA	RESET
				-DATA	DATA	DTC
				-CLK		DTC
				-CLK		Q9			CHARGE
				-STB		Q9
				-STB
			TX						CONTROL
			DATA						Q14, Q17
					CPU				DC 12V
					IC2				DC 12V
	DC 5V		LED		IC2
	DC 5V		Q21, LED1
			Q21, LED1
	CONTROL LINE					CHARGE			CHARGE
	CONTROL LINE					DTC			TERMINAL
						DTC			TERMINAL
	AUDIO SIGNAL					Q7
	AUDIO SIGNAL
						KX-TC1205RUB/W/S/F BLOCK DIAGRAM (BASE UNIT)

KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF

Image 36

Contents KX-TC1205RUB KX-TC1205RUW KX-TC1205RUS KX-TC1205RUF Contents Accessories and Packing Materials Battery Recharge Battery informationBattery Replacement Location of Controls Base Unit HandsetConnection KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF Adding Another Phone Operations Making Calls Answering CallsKX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF Flash Button Disassembly Instructions Show in Fig To remove RemoveRear Cabinet Battery compartment cover Troubleshooting Guide Check Power Bell Reception Check Battery Charge Check Link CPU IC2 RF IC IC1Refer to Adjustment P.27 Check Handset Transmission Check Handset ReceptionAdjustments Base Unit Test Mode Flow Chart Base UnitHow to change the channel AdjustmentAdjustment Standard Base Unit IC3Adjustments Handset Test Mode Flow Chart HandsetHow to change the channel Adjustment IC1Adjustment Standard Handset Component ViewFlow Solder Side View RF Specification HOW to Check the Handset SpeakerBase Unit Frequency Table MHz Explanation of CPU Data Communication STAND-BY TALK, Talk STAND-BY Ringing Changing the Channel Ports for transmitting and receiving of data Block Diagram Base Unit IC1Block Diagram Handset IC1Circuit Operation OutlinePower Supply Circuit Reset Circuit Base Unit Charge Circuit Telephone Line InterfaceTransmitter/Receiver Base to HandsetHandset to Base Signal Route Reset Circuit Handset Circuit Operation HandsetBattery Low / Power Down Detector 18.1. IC2 19.1. IC2 HOW to Replace Flat Package IC ProcedureModification Procedure of Bridge PreparationCabinet and Electrical Parts Location Base Unit Cabinet and Electrical Parts Location Handet Accessories and Packing Materials Replacement Parts List Cabinet and Electrical PartsDiodesi ZNR1 ERJ3GEYJ514 PQXA36ASVC Battery ERJ3GEYJ202 Accessories and Packing Materials For Schematic Diagram Base Unit Schematic Diagram Base UnitHandset Schematic Diagram Handset Schematic Diagram Base Unit 26.1 Base Unit26.2 RF Unit Base Unit FILTER\2Schematic Diagram Handset 27.1 HandsetRF Unit Handset 450kHzKX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF Circuit Board Base Unit IC1 IC4 IC2 IC3 Circuit Board Handset RX VCO TX VCO KXTC1205RUB