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BIXOLON SRP-E770III Series Service Manual Download Page 31

 

SRP-E770III 

 

4-3 Special Circuit Description 

 

4-3-1 Power Circuit 

 

This system is operated under 100Vac or 240Vac. The power circuit supplies the three differential DC voltage 
sources. 
 

 

 

 
1) Feed Motor Voltage, TPH Driving Voltage : +24VDC 

+24VDC is supplied from SMPS. 
This voltage is used as a Step motor driving voltage and a source voltage of the other voltage sources and 
TPH Driving Voltage. 

 
2) CPU I/O, NAND FLASH, Etc. Voltage : +3.3VDC 

Change the input +24VDC to +3.3VDC by a regulation. U7(A4490EESTR) 
 

3) DDR2 SDRAM Voltage : +1.8VDC 

Change the input +24VDC to +1.8VDC by a regulation. U7(A4490EESTR) 
 

4) CPU Core Voltage : +1VDC 

Change the input +5VDC to +1VDC by a regulation. U13(EUP3408) 

 
 
 
 
 
 
 
 
 

No. 

VOLTAGE 

DESCRIPTION 

1 

VDD_24V (+24VDC) 

Step Motor Voltage, Thermal Printer Head (TPH) Voltage 

2 

VDD_3V3 (+3.3VDC) 

CPU I/O, NAND Flash, LOGIC Etc. Voltage 

3 

VDD_1V8 (+1.8VDC) 

CPU, DDR2 SDRAM Voltage   

4 

VDD_1V (+1VDC) 

CPU Core Voltage   

Ver. 1.01 

- 31 - 

Summary of Contents for SRP-E770III Series

Page 1: ...Service Manual Label Printer Ver 1 01 SRP E770III...

Page 2: ...Auto Calibration 12 2 2 9 Gap Sensor Manual Calibration 13 2 2 10 Data Dump Mode 14 2 2 11 The Peel Off Option 14 2 2 12 Using Fan Fold Paper 15 2 2 13 Firmware Download 16 3 Product Specifications 1...

Page 3: ...2 4 Platen Roller Block 41 5 2 5 Paper Guide Block 42 5 3 Case Upper Block 44 5 3 1 Case Upper Block 44 5 3 2 Holder TPH Block 45 5 3 3 TPH Assembly Block 46 5 3 4 Lever Lock Block 47 6 Maintenance 4...

Page 4: ...view of this Label Printer This System Label Printer is a ATMEL processor based system using a 32 bit Atmel processor This Service Manual provides the technical information for many individual compone...

Page 5: ...d alterations might create a safety hazard Also any design changes or additions will void the manufacture s warranty 6 Components parts and wiring that appear to have overhead or that are otherwise da...

Page 6: ...tall all such elements to their original position 3 After servicing always check that the screws components and wiring have been correctly reinstalled Make sure that the portion around the serviced pa...

Page 7: ...all it Most replacement ESDs are packaged with leads that are electrically shorted together by conductive foam aluminum foil or other conductive materials 8 Immediately before removing the protective...

Page 8: ...he power cord to a power source outlet 1 Turn off the power switch 2 Connect the communication cable to the printer communication port to be used Connect USB B Type cable to the USB port This port req...

Page 9: ...ower switch 2 Connect the communication cable to the printer communication port to be used Connect the LAN Ethernet Cable to the ETHERNET port This port requires a UTP cable CAT5 or higher less than 3...

Page 10: ...n It restarts printing when pressed again 4 Green LED blinking TPH Thermal Printing Head overheated or The printers is waiting for the button input to run Auto Calibration function 5 Orange LED blinki...

Page 11: ...tion 1 Make sure that a printer is in Print Standby Mode 2 Depress the Feed button for about 3 seconds then the LED changes to orange color 3 Release the Feed button then the printer starts the Standa...

Page 12: ...tarts Media Length Measurement Mode in the following conditions 1 When the printer has no measure length for example first feeding after installation 2 When the detected label length differs from the...

Page 13: ...e the printer is connected and execute the utility program Please the Calibration Setting Manager Button after setting the interface type 1 Select the sensing type and input the label length by millim...

Page 14: ...mped in hex format without processing Turn the printer off and on to recover to the Print Standby Mode Use Stand alone Configuration Mode Sequence Number 5 refer to 5 1 to start Data Dump Mode 2 2 11...

Page 15: ...per through the slot 5 Adjust the paper guides and close the cover 2 2 12 Using Fan Fold Paper Supplying paper to the printer externally is done as follows 1 Insert the paper at the rear of the printe...

Page 16: ...e Download There are two ways to download firmware 1 Normal firmware download Used to change firmware with the updated version Please refer to the Firmware download manual 2 Emergency firmware downloa...

Page 17: ...3 Product Specifications 3 1 Appearance 3 1 1 Printer Dimensions mm Figure3 1 Printer Dimension 3 1 2 AC DC Adapter Dimension mm Figure3 2 AC DC Adapter Dimension 57 1 34 1 1200 50 171 221 189 130 1...

Page 18: ...SRP E770III 3 1 3 Feature Locations Feed Button Power Switch Cover Lever Printer Head Paper Holder Paper Gap Sensor Paper Cover Cover STD Paper Guide Ver 1 01 18...

Page 19: ...SRP E770III Figure3 3 Feature Location USB B Type Fan Fold Power Jack USB B Type Label Peel off Option Ver 1 01 19...

Page 20: ...Type BULK Speed 480M bps High Speed Power Self powered Connector Type USB B type Ethernet Interface Network 10 100 Base T Auto Detection Protocol TCP UDP IP ICMP ARP Flow Control Hardware RTS CTS Prin...

Page 21: ...Font Download True Type Font Download Template The label format can be stored in the printer and can be reused Variable and Counter can be used in template Variable Total 100 variables supported Can...

Page 22: ...an 23 code pages International Characters more than 32 code pages Fonts 10 resident expandable SLCS bitmap fonts One resident scalable font for SLCS 16 resident Expandable BPL Z bitmap fonts One resid...

Page 23: ...o Condensation 3 3 6 TPH Thermal Printer Head Specifications Item Description Remark Head Element Structure 2 Heaters Dot Number of Heat Element 832 Dots Heat Element Pitch 0 125 mm dot 8dots mm 203 d...

Page 24: ...25 20V Full Load Rated Voltage Min 22 80V Std 24 00V Max 25 20V Rated Current 2 5A 100 240V AC Input Ripple and Noise 250mV Iout 2 5A Resistance load S C P Short Current Protect Shutdown Mode The shu...

Page 25: ...Level Logic 1 Mark 5V Logic 0 Space 0V Baud Rate 9 600 19 200 38 400 57 600 115 200 bps Data bits length 7 bits 8 bits Stop bits length 1 bit 2bits Parity Odd even or None 2 RS 232C Cable 3 Cable Conn...

Page 26: ...Xoff ASCII 13h signal hrough the TxD line If the printer is busy the printer transmits XOFF to host through the TxD line Then the host recognize that the printer is now busy So the host does not tran...

Page 27: ...P Dynamic Host Configuration Protocol Flow control Hardware RTS CTS 2 Ethernet I F cable 3 Ethernet I F signal descriptions Pin No Signal name Assignment Color Function 1 TD White Orange Transmit 2 TD...

Page 28: ...0 V Speed Hi Speed 480M bps Power Self Powered Cable Connector Cable A to B Type Standard Connector B Type Other Supports the 480 Mbps high speed HS mode for USB 2 0 as well as the 12 Mbps full speed...

Page 29: ...ram CN4 CONTROL PANNEL SENSOR DOWN PAPER FEED MOTOR THERMAL HEAD DC JACK POWER ADAPTOR HOST MAIN CIRCUIT BOARD UNIT SRP E770III HOST HOST SERIAL ETHERNET USB ECN3 CN1 J1 CN9 CN5 CN10 CN8 PEEL OFF COVE...

Page 30: ...SRP E770III 4 2 Block Diagram Ver 1 01 30...

Page 31: ...oltage sources and TPH Driving Voltage 2 CPU I O NAND FLASH Etc Voltage 3 3VDC Change the input 24VDC to 3 3VDC by a regulation U7 A4490EESTR 3 DDR2 SDRAM Voltage 1 8VDC Change the input 24VDC to 1 8V...

Page 32: ...cuit uses a reset IC XC6127N27C U24 When 3 3Vdc is fallen under 2 7Vdc by Power Off reset signal prohibits the system from misoperating by lowering down to 0V Figure 4 1 Reset Circuit Vcc RESET 200ms...

Page 33: ...m 2 RS232C Communication waveform CPU ST3232 Driver D SUB9 Female Host Printer Host Printer Transmit data Host not Busy Host Busy Host Busy CTS RTS RX TXD Transmit Printer to Host Receive Host to Prin...

Page 34: ...10 100 Base T All in one type Auto detection 4 3 5 USB Communication Block Diagram The printer support the USB Universal Serial Bus The transfer type is the BULK Figure 4 5 USB2 0 Communication Block...

Page 35: ...ols the each dot of TPH Table 4 1 Printer Head Strobe Processing Strobe No TPH Dot No Dots STB Strobe pin CPU STB1 1 192 192 TPH_STB1 STB2 193 320 128 TPH_STB1 STB3 321 448 128 TPH_STB1 STB4 449 576 1...

Page 36: ...SRP E770III 5 Disassembly and Assembly 5 1 Case Lower Block 5 1 1 Case Lower Block Figure 5 1 Disassembly Case Lower 1 1 Remove the five screws 2 Separate the from the printer Ver 1 01 36...

Page 37: ...re 5 2 Disassembly Case Lower 2 1 Remove the three Screws 2 Remove the connector wires from the PCB Main 3 Separate the PCB Main and sheet PCB from the Printer 4 Remove the two Screws 4 Separte the Br...

Page 38: ...ame Block 5 2 1 Lower Frame Block Figure 5 3 Disassembly Frame Lower 1 1 Move the Guide hinge 2 Separate the Lower Frame Assembly from the Case Upper Assembly Lower Frame Assembly Guide hinge Case Upp...

Page 39: ...SRP E770III 5 2 2 Cover STD Block Figure 5 4 Disassembly Frame Lower 2 1 Separate the Guide hinge and Spring hinge from the Frame Lower 2 Separate the Cover STD from the Frame Lower Ver 1 01 39...

Page 40: ...k Figure 5 5 Disassembly Frame Lower 3 1 Remove the Screw 2 Separte the Assy Brkt Motor from the Frame Lower 3 Remove the two screws and Separate the Motor 4 Remove the two Washer and Separate the for...

Page 41: ...SRP E770III 5 2 4 Platen Roller Block Figure 5 6 Disassembly Frame Lower 4 1 Turn the Bush Roller 2 Separate the from the Frame Lower Ver 1 01 41...

Page 42: ...5 2 5 Paper Guide Block Figure 5 7 Disassembly Frame Lower 5 1 Remove the two Screws 2 Separate the from the Frame Lower 3 Remove the one Screw and the one Screw 4 Separate the from the Frame Lower V...

Page 43: ...II 5 2 6 Paper Holder Block Figure 5 8 Disassembly Frame Lower 6 1 Remove the one Screw and four Screws 2 Separate the from the Frame Lower 3 Separate the Holder Paper Fixed from the Holder Paper R Ve...

Page 44: ...SRP E770III 5 3 Case Upper Block 5 3 1 Case Upper Block Figure 5 9 Disassembly Case Upper 1 1 Remove the four Screws and two Screw 2 Separate the from the Case Upper Ver 1 01 44...

Page 45: ...SRP E770III 5 3 2 Holder TPH Block Figure 5 10 Disassembly Case Upper 2 1 Remove the four Screws 2 Separate the Holder TPH Assembly from the Case Upper Ver 1 01 45...

Page 46: ...sassembly Case Upper 3 1 Separate the TPH Assembly from the Holder TPH 2 Remove the one Screw and separate the PCB Sensor up 3 Separate the two Connectors Wire Head from the TPH 4 Remove the two Screw...

Page 47: ...Separate the two Spring TPH from the Case Upper 3 Remove the two Screws 4 Separate the PCB Feed from the Case Upper 5 Separate the Connector Wire Feed from the PCB Feed Disassembly Lever Lock Assembl...

Page 48: ...ricity etc Take care not to allow the print head to become scratched and or damaged in any way Be careful not to get your fingers pinched when opening or closing the paper cover Also be careful the pa...

Page 49: ...move adhesive foreign substances or other pollution materials 4 After cleaning the parts do not use the printer until the alcohol evaporates completely 1 2 min and the printer has completely dried Cle...

Page 50: ...ponent Troubleshooting tables Follow the steps outlined in these tables to repair a defect whose symptoms are known 7 1 Troubleshooting flow chart 7 1 1 Basic flow chart If the source of a problem is...

Page 51: ...SRP E770III 7 1 2 LED dose not light Ver 1 01 51...

Page 52: ...wer then turn on the power Is label roll paper not insert Replace or insert label paper roll OK END END OK Replace up gap sensor down ass y END Replace up gap sensor up ass y OK Replace PCB main ass y...

Page 53: ...I 7 1 4 LED is orange blink C OK Turn off the power then turn on the power Is cover opened Close cover OK END Yes No Yes No No END Replace cover s w ass y OK Replace PCB main ass y END END No Yes No V...

Page 54: ...Is output voltage of regulator on PCB main within SPEC 1 Replace PCB main ass y Yes Does not paper feeding Yes No Dose print quality is deficient Replace PCB main ass y Replace Motor ass y Replace TP...

Page 55: ...SRP E770III 7 1 6 Data from host is not printed normal Ver 1 01 55...

Page 56: ...SRP E770III 7 2 Power Problem Ver 1 01 56...

Page 57: ...SRP E770III 7 3 System Problem Ver 1 01 57...

Page 58: ...SRP E770III 7 4 Panel PBA and Media Sensor Problem Ver 1 01 58...

Page 59: ...t Pattern No Power Ok TP58 64 Control Signal Ok TP62 65 68 69 Yes 1 Refer to the Power Problem TPH_24V VDD_5V 2 Check the Harness No END Step Motor Ok TP82 83 85 86 Yes 1 Check the Power VDD_24V TP74...

Page 60: ...SRP E770III 7 6 RS 232C Serial Communication Problem Ver 1 01 60...

Page 61: ...SRP E770III 7 7 USB Communication Problem Ver 1 01 61...

Page 62: ...SRP E770III 7 8 Ethernet Communication Problem Ver 1 01 62...

Page 63: ...ein is designed only for use with this BIXOLON product BIXOLON is not responsible for any direct or indirect damages arising from or related to use of this information The BIXOLON logo is the register...

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