BIXOLON service manual SRP-350/352plusA&C, 2 Block Diagram

Page 33

					SRP-350/352plusA&C
4-2 Block Diagram
POWER					RS-232	RS-232
ADAPTER					RS-232	RS-232
ADAPTER					DRIVER	CON.
+24VDC					DRIVER	CON.
+24VDC
					IEEE-1284	IEEE-1284
		VPP(+24V)			DRIVER	CON.
		VPP(+24V)
		VTH(+24V)
POWER		VCC(+5V)	+3.3V		ETHERNET	ETHERNET
POWER			+3.3V		ETHERNET	ETHERNET
SUPPLY	+3.3V	RESET			DRIVER	CON
CIRCUIT	+3.3V	RESET
		CIRCUIT			USB2.0	USB
		+2.5V			USB2.0	USB
		+2.5V			DRIVER	CON.
					DRIVER	CON.
FLACH		ADDRESS
FLACH		DATA
M29W160EB		DATA
				MCU	SENSOR	P_END &
					SENSOR	NEAR
		ADDRESS			CIRCUIT	NEAR
				uPD70F3170	CIRCUIT	SENSOR
SRAM				uPD70F3170		SENSOR
SRAM		DATA				AUTO
K6R4008V1D		DATA			DRIVER	AUTO
					DRIVER	CUTTER
						CUTTER
					SWITCH	A_CUT
					SWITCH	SWITCH
						SWITCH
BUZZER		BUZZER				THERMAL
BUZZER		CIRCUIT				THERMAL
		CIRCUIT				HEAD
						HEAD
					MOTOR	PAPER
		DIP			MOTOR	FEED
DIP					DRIVER	FEED
					DRIVER	MOTOR
		SWITCH				MOTOR
SWITCH		SWITCH
SWITCH		CIRCUIT
		CIRCUIT				LED
						LED
						FEED
DRAWER		SWITCH				BOTTON
DRAWER		SWITCH
&		DRIVER
COMPULSORY		DRIVER
				CLOCK
				5MHz
			[Figure 4-2 Block Diagram]

Rev. 2.01

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Image 33

Contents Service Manual SRP-350/352plusA&CThermal Printer Rev SRP-350/352plusA&C Table of Contents6. Adjustments and Maintenance 5. Disassembly and Assembly7. Troubleshooting 4. Hardware1-1 Safety Precautions 1. Precaution Segmenta Remove or reinstall any component or assembly 1-2 Servicing Precaution1-3 Precaution for Electrostatically Sensitive Devices ESDs 1-4 Operational Precautions1. Some semiconductor solid state devices are easily damaged by static electricity. Such components are called Electrostatically Sensitive Devices ESDs examples include integrated circuits and some field-effect transistors. The following techniques will reduce the occurrence of component damaged caused by static electricity 2-1 Installation 2. Installation and Operation2-1-1 AC Adapter Installation 2-1-2 Interface Cable Installation2-1-5 Wall Mount Installation SRP-350/352plusA&C 2-2 Operation 2-2-1 Setting the DIP switches2-2-2 Setting the DIP switch RS-232C Serial Interface ※ Auto Cutter Enable / Disable selection 2-2-3 Setting the DIP switch IEEE1284 Parallel, USB Interface2-2-5 The self Test Mode 2-2-4 Hexadecimal DumpingFigure 3-13 The Self-Test Sheet 2-2-6 Setting the Memory Switches SRP-350/352plusA&C 3-1 Appearance 3. Product Specifications3-1-1 Printer Dimensions mm 3-1-2 AC Adapter Dimensions mm3-1-3 Feature Locations-SRP-350/352plusA/C TYPE SRP-350/352plusCOS RS-232 Serial Communication 3-2 General SpecificationsSRP-350/352plusCOP IEEE1284 Parallel Communication SRP-350/352plusCO USB Communication3-3-1 Printer Specification 3-3 Thermal Printer Specifications3-3-2 Character Specification Description3-3-4 Reliability and Environment Specification 3-3-3 Paper Specification※ Note PD 160R3-3-5 Printable Area 3-3-6 TPH Thermal Printer Head Specification 1 180dpi3-3-7 Other Component Specification 3-4 SMPS Specifications 3-4-1 SMPS Switching Mode Power Supply Specification3-4-2 SMPS Output Connector 3-5 Interface Specifications 3-5-1 RS-232C Serial Interface 3-5-1a Specification3-5-1b RS-232C I/F Cable 3-5-1c Cable Connection 3-5-1d Signal DescriptionPrinter Host3-5-1e H/W Flow Control 2-5-2a Forward Mode Specification Compatibility mode3-5-1f S/W Flow Control ※ Note Refer to the Operation Manual about XON/XOFF flow control3-5-2c IEEE1284 I/F Cable 3-5-2c Signal Specification Compatibility/Nibble/Byte modenAck Busy3-5-3b Signal Description 3-5-3a Specification3-5-3 USB2.0 Interface 3-5-3c Cable3-5-4d Construction Series B Connectors Series A Connectors※ Note Minimum conductor construction must be stranded tinned copper From the※ Note +24V is always output through pin 4 during power on 3-6 Cash Drawer Specifications3-6-1 Drawer Cable 3-6-2 Cable Connection4-1 Wiring Diagram 4. HardwareFigure 4-1 Board Wiring Diagram Figure 4-2 Block Diagram 4-2 Block Diagram4-3-1 Power Circuit 4-3 Special Circuit Descriptions4 CPU, Flesh, SRAM, Reset Voltage +3.3V VOLTAGEReset signal is signal in order to start-up CPU under Power-on 4-3-2 RESET CircuitFigure 4-4 Reset Block Diagram Figure 4-5 Reset Waveform ASM811 REUSF-T2 Cash Drawer Driving Circuit 4-3-3 Buzzer and Cash Drawer Circuits 1 Buzzer Driving Circuit4-3-4 I/F PBA Detect Block Diagram 4-3-5 RS-232C Communication Block DiagramUPD70F3107 4-3-7 USB Communication Block Diagram 4-3-6 Parallel Communication Block Diagram4-3-8 DIP Switch Circuit LATCH DATA#1,2STROBE1 4-3-9 Thermal Printer Head Circuit5-1 Case lower block 5. Disassembly and Assembly1 Scrw 2 Brkt Dip Switch 3 Case Lower 4 Foot Rubber6 Main PCB 8 Screw 1 Screw 2 Brkt PCB5 PCB Serial Parallel Screw1.Push the button to open the Cove Open. 2.Remove the four screws 5-2 Case Upper block1.Remove the two screws 3.Remove the three screws. 4.Separate the Manual cutter from1 Spring Hook Roller Platen Assembly4 Brkt-Hook 3 Screw 1.Remove the E-Ring. 2.Separate the Spring tension, the3 Cover Housing 5-3 Frame block4 Screw 1 ScrewSpring TPH 5.Separate the Connector from the Heat-sink 4 Screw 7 Connector1.Remove the screw 2 Heatsink Assy 1 ScrewFrame Main 1 Screw 2 Frame Main 3 Brkt PCB 4 Power SwitchWasher Slip6. Adjustments and Maintenance 6-1 Adjustment6-1-1 Remaining Roll Paper Adjustment 6-1-2 Paper Jam ※ Caution Turn off the printer power before cleaning 6-2 Maintenance7. Troubleshooting 7-1 Power ProblemOk? On SMPS 7-2 System Problem 7-3 Panel PBA and Sensor Problem 7-4 Thermal Printer Head and Feed Motor Problem 7-5 Auto Cutter and Drawer Problem 7-6 Dip S/W and I/F PBA Select Problem Input Ok?Select Ok? 7-7 RS-232C Serial Communication Problem 7-8 IEEE-1284 Parallel Communication Problem Main PBA I/F 7-9 USB2.0 Communication ProblemFailure? Reverse Mode

4-2 Block Diagram

[Figure 4-2 Block Diagram]