BIXOLON service manual Troubleshooting, Power Problem, SRP-350/352plusA&C, Ok? On SMPS

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SRP-350/352plusA&C

7. Troubleshooting

This chapter describes the methods for troubleshooting in this Receipt Printer.

7-1 Power Problem
Power
Problem
Power Out	N
Ok? On SMPS
Y	1.	Check the Input/Output Power Cable
	2.	Replace the Adapter(SMPS)
Power VDR	N
(+24V) Ok?
Y	1.	Check the Harness of Power S/W
	1.	Check the Harness of Power S/W
	2.	Check the related Circuit & Pattern
Power VTPH	N
(+24V) Ok?
Y	1.	Check the TR (Q3,Q4)
	1.	Check the TR (Q3,Q4)
	2.	Check the related Circuit & Pattern
Power	N
(+7.8V) Ok?
Y	1.	Check the Regulation U16 (LM2576S-ADJ)
	1.	Check the Regulation U16 (LM2576S-ADJ)
	2.	Check the related Circuit & Pattern
Power VCC	N
(+5V) Ok?
	1.	Check the Regulation U2 (BA17805FP-E2)
	2.	Check the related Circuit & Pattern
Y
Power	N
(+3.3V) Ok?
Y	1.	Check the Regulation U3 (BA033FP-E2)
	2.	Check the related Circuit & Pattern
End
Rev. 2.01		- 51 -

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Contents Service Manual SRP-350/352plusA&CThermal Printer Rev SRP-350/352plusA&C Table of Contents4. Hardware 5. Disassembly and Assembly6. Adjustments and Maintenance 7. Troubleshooting1-1 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 2-1-2 Interface Cable Installation 2. Installation and Operation2-1 Installation 2-1-1 AC Adapter 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 3-1-2 AC Adapter Dimensions mm 3. Product Specifications3-1 Appearance 3-1-1 Printer Dimensions mm3-1-3 Feature Locations-SRP-350/352plusA/C TYPE SRP-350/352plusCO USB Communication 3-2 General SpecificationsSRP-350/352plusCOS RS-232 Serial Communication SRP-350/352plusCOP IEEE1284 Parallel CommunicationDescription 3-3 Thermal Printer Specifications3-3-1 Printer Specification 3-3-2 Character SpecificationPD 160R 3-3-3 Paper Specification3-3-4 Reliability and Environment Specification ※ Note3-3-5 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 Host 3-5-1d Signal Description3-5-1c Cable Connection Printer※ Note Refer to the Operation Manual about XON/XOFF flow control 2-5-2a Forward Mode Specification Compatibility mode3-5-1e H/W Flow Control 3-5-1f S/W Flow ControlBusy 3-5-2c Signal Specification Compatibility/Nibble/Byte mode3-5-2c IEEE1284 I/F Cable nAck3-5-3c Cable 3-5-3a Specification3-5-3b Signal Description 3-5-3 USB2.0 Interface3-5-4d Construction From the Series A ConnectorsSeries B Connectors ※ Note Minimum conductor construction must be stranded tinned copper3-6-2 Cable Connection 3-6 Cash Drawer Specifications※ Note +24V is always output through pin 4 during power on 3-6-1 Drawer Cable4-1 Wiring Diagram 4. HardwareFigure 4-1 Board Wiring Diagram Figure 4-2 Block Diagram 4-2 Block DiagramVOLTAGE 4-3 Special Circuit Descriptions4-3-1 Power Circuit 4 CPU, Flesh, SRAM, Reset Voltage +3.3VASM811 REUSF-T 4-3-2 RESET CircuitReset signal is signal in order to start-up CPU under Power-on Figure 4-4 Reset Block Diagram Figure 4-5 Reset Waveform2 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 4-3-9 Thermal Printer Head Circuit DATA#1,2LATCH STROBE14 Foot Rubber 5. Disassembly and Assembly5-1 Case lower block 1 Scrw 2 Brkt Dip Switch 3 Case LowerScrew 8 Screw 1 Screw 2 Brkt PCB6 Main PCB 5 PCB Serial Parallel3.Remove the three screws. 4.Separate the Manual cutter from 5-2 Case Upper block1.Push the button to open the Cove Open. 2.Remove the four screws 1.Remove the two screws1.Remove the E-Ring. 2.Separate the Spring tension, the Roller Platen Assembly1 Spring Hook 4 Brkt-Hook 3 Screw1 Screw 5-3 Frame block3 Cover Housing 4 Screw2 Heatsink Assy 1 Screw 4 Screw 7 ConnectorSpring TPH 5.Separate the Connector from the Heat-sink 1.Remove the screwSlip 1 Screw 2 Frame Main 3 Brkt PCB 4 Power SwitchFrame Main Washer6. 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 Reverse Mode 7-9 USB2.0 Communication ProblemMain PBA I/F Failure?