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TSC Alpha-4L Service Manual

Direct thermal portable printer
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Alpha-4L
Direct Thermal Portable Printer
SERVICE
MANUAL
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Summary of Contents for TSC Alpha-4L

  • Page 1 Alpha-4L Direct Thermal Portable Printer SERVICE MANUAL...

  • Page 2: Table Of Contents

    Contents 1. FUNDAMENTAL OF THE SYSTEM ........ 2 1.1 Overview......................2 2. ELECTRONICS ..........4 2.1 Summary of Board Connectors ..............4 3. MECHANISM ..........12 3.1 Replacing the Platen Roller ................12 3.2 Replacing the Print Head Assembly ............. 13 3.3 Replacing the Keys Control Board/ LCD Control Board ......

  • Page 3: Fundamental Of The System

    1. FUNDAMENTAL OF THE SYSTEM 1.1 Overview Front View Power on/off button Feed button Printer status LED indicator Battery status LED indicator Media cover release button Peel-off sensor (Without for linerless model) Print head Transmissive sensor – Gap sensor Media holder lock switch Media holder Media cover Reflective sensor –...
  • Page 4 Rear View Li-ion battery Belt chip Battery open clasp Hanger for shoulder strap External label entrance chute USB interface * MicroSD card socket Power jack Note: * Recommended MicroSD card specification. SD card SD card spec Approved SD card manufacturer capacity V1.0, V1.1 MicroSD 128 MB Transcend, Panasonic...

  • Page 5: Electronics

    2. ELECTRONICS 2.1 Summary of Board Connectors CON101 J101 CON102 J401 CON103 J404 Main board top Connector Description DC Jack J101 12V DC IN...
  • Page 6 Micro SD connector Description SD_Data2 SD_Data3 SD_CMD Pin 1 3.3V J401 SD_CLK Pin 8 SD_Data0 SD_Data1 Micro USB Description VBUS Pin 1 J404 Pin 10 Battery CON101 pin1~4 & CON102  pin1 for battery positive CON103 pin1~4 & CON102  pin4 for battery negative CON101 CON102 pin2~3 for NTC...
  • Page 7 Main board bottom J501 S101 J703 J301 J403 BAT1 J603 J601 J600 J602 Connector Description For LCD & LED board Description 3.3V PEEL_E PEEL_R 8V battery J600 LED_Charging off & low battery Pin 1 LED_Charging Power KEY Feed KEY...
  • Page 8 Description /HPM CAP2- CAP2+ CAP1+ CAP1- CAP3+ J601 Pin 1 VOUT 3.3V LCM_D7 LCM_D6 LCM_D5 LCM_D4 LCM_D3 LCM_D2 LCM_D1 LCM_D0 LCM_RD LCM_WR LCM_A0 /LCM_RST /LCM_CS...
  • Page 9 For LED Board Description 3.3V LED_STATUS LED_ERROR J602 LED_FULL BATTERY LED_HALF BATTERY LED_BT LED_WIFI For LCD board Description J603 3.3V LED_ERROR MANUAL KEY INFO KEY Download port Description 3.3V /RESET MISO MOSI WiFi connector Description 3.3V J402 /WIFI_RST WIFI_RXD WIFI_RST...
  • Page 10 WIFI_TXD WIFI_CTS Bluetooth connector Description 3.3V BT_RST BT_RXD BT_RTS J403 BT_TXD BT_CTS BT_DISCON BT_CON Stepping motor Description AOUT1 J501 AOUT2 BOUT1 BOUT2 Black mark sensor Description J701 3.3V BM_E BM_R Gap sensor Description 3.3V J702 GAP_R...
  • Page 11 Hand open senor Description J703 HEAD Print head Description /LAT TPH_CLK 3.3V_TPH STB1 STB2 STB3 J301 STB4 STB5 STB6 STB7...
  • Page 12 Charger station Description 12V_IN S101 12V_IN RTC battery Description BAT1...

  • Page 13: Mechanism

    3. MECHANISM 3.1 Replacing the Platen Roller 1. Open the printer cover. Use a tool to take the platen roller off. Replace the platen roller. 2. Reassemble the parts in the reverse procedures.

  • Page 14: Replacing The Print Head Assembly

    3.2 Replacing the Print Head Assembly 1. Use to remove two screws on lower cover. hex wrench (#2.5) 2. Open the printer cover. Remove four screws on lower inner cover. 3. Remove the upper cover carefully.
  • Page 15 4. Remove 2 screws on the each side of lower inner cover to remove the print head spring fixture.
  • Page 16 5. Loosen the connector lock (black) then disconnect the flat cable from the main board. Remove the print head assembly. 6. Replace the print head assembly.
  • Page 17 Print head ass’y Print head spring fixture 7. Reassemble the parts in the reverse procedures.

  • Page 18: Replacing The Keys Control Board/ Lcd Control Board

    3.3 Replacing the Keys Control Board/ LCD Control Board 1. Refer to section 3.2 to remove the upper cover. Disconnect the cables from the main board. Note: For the flat cable (LCD control board), please loosen the connector lock (brown) then disconnect the cable.

  • Page 19: Replacing The Peel-Off Sensor Module

    3.4 Replacing the Peel-off Sensor Module Refer to section 3.2 to remove the upper cover. Disconnect the peel-off sensor connector by loosen the connector lock for panel board. Remove 1 screw. Replace the peel-off sensor module. Reassemble the parts in the reverse procedures.

  • Page 20: Replacing The Bluetooth Module

    3.5 Replacing the Bluetooth Module 1. Refer to section 3.2 to remove the upper cover. 2. Remove 2 screws on the Bluetooth control board. Use a tool to remove the spacer support on the Bluetooth control board. 3. Disconnect the connector on the board. Replace the Bluetooth module. 4.

  • Page 21: Replacing The Main Board Assembly

    3.6 Replacing the Main Board Assembly Refer to section 3.5 to remove the upper cover and Bluetooth control board. Remove 2 screws on the main board. Disconnect all the connectors on the main board. Replace the main board. 3. Reassemble the parts in the reverse procedures.

  • Page 22: Replacing The Stepping Motor

    3.7 Replacing the Stepping Motor 1. Refer to section 3.2 to remove the upper cover. 2. Remove 5 screws. Disconnect the connectors on main board to take out the internal mechanism. 3. Remove 2 screws to replace the stepping motor. 4.

  • Page 23: Replacing The Gap Sensor Assembly

    3.8 Replacing the Gap Sensor Assembly 1. Refer to section 3.7 to take out the internal mechanism. 2. Loosen 2 springs. 3. Remove 4 screws on the internal mechanism. 4. Replace the gap sensor assembly. 5. Reassemble the parts in the reverse procedures.

  • Page 24: Replacing The Media Holder Assembly

    3.9 Replacing the Media Holder Assembly 1. Refer to section 3.8 to remove the gap sensor assembly. 2. Replace the media holder assembly. 3. Reassemble the parts in the reverse procedures.

  • Page 25: Replacing The Hand Open Sensor Assemble

    3.10 Replacing the Hand Open Sensor Assemble Refer to section 3.7 to take out the internal mechanism. Remove 1 screw to replace the hand open sensor assembly. Reassemble the parts in the reverse procedures.

  • Page 26: Replacing The Peel-Off Module

    3.11 Replacing the Peel-off Module 1. Refer to sections 3.1 and 3.7 to remove the platen roller and take out the internal mechanism. 2. Remove the black mark sensor cover. 3. Remove 4 screws on upper cover to take out the black mark sensor module. 4.

  • Page 27: Replacing The Black Mark Sensor Assembly

    3.12 Replacing the Black Mark Sensor Assembly 1. Refer to sections 3.11 to take out the black mark sensor assembly. Disconnect the black mark sensor connector from main board. 2. Reassemble the parts in the reverse procedures.

  • Page 28: Replacing The Charger Board Assembly

    3.13 Replacing the Charger Board Assembly 1. Refer to the section 3.7 to take out the internal mechanism. 2. Disconnect the connector on the main board. Remove 2 screws to replacing the charger board assembly. 3. Reassemble the parts in the reverse procedures.

  • Page 29: Replacing The Wi-Fi Module (Option)

    3.14 Replacing the Wi-Fi Module (Option) 1. Refer to section 3.2 to remove the upper cover. 2. Disconnect the antenna connector gently. 3. Remove the screw and loose the spacer support on the Wi-Fi module. Antenna connector 4. Replace the Wi-Fi module board. 5.

  • Page 30: Replacing The Rtc Battery (Option)

    3.15 Replacing the RTC Battery (Option) 1. Refer to section 3.14 to remove the WiFi module. 2. Disconnect the connector on the main board. 3. Replace the RTC battery. 4. Reassemble the parts in the reverse procedures.

  • Page 31: Troubleshooting

    TROUBLESHOOTING 4.1 Common Problems The following guide lists the most common problems that may be encountered when operating this bar code printer. If the printer still does not function after all suggested solutions have been invoked, please contact the Customer Service Department of your purchased reseller or distributor for assistance.
  • Page 32 * The printer is in Hex Dump * Turn off and on the printer to skip the mode. dump mode. Irregular printing * The RS-232 setting is * Re-set the Rs-232 setting. incorrect.

  • Page 33: Maintenance

    MAINTENANCE This session presents the clean tools and methods to maintain your printer. 1. Please use one of following material to clean the printer.  Cotton swab  Lint-free cloth  Vacuum / Blower brush  100% ethanol 2. The cleaning process is described as following, Printer Part Method Interval...

  • Page 34: Revise History

    Revise History Date Content Editor Camille 2016/4/6 Modify section 3.14 (Replacing the Wi-Fi Module)
  • Page 35 9F., No.95, Minquan Rd., Xindian Dist., No.35, Sec. 2, Ligong 1st Rd., Wujie Township, New Taipei City 23141, Taiwan (R.O.C.) Yilan County 26841, Taiwan (R.O.C.) TEL: +886-2-2218-6789 TEL: +886-3-990-6677 FAX: +886-2-2218-5678 FAX: +886-3-990-5577 Web site: www.tscprinters.com E-mail: printer_sales@tscprinters.com TSC Auto ID Technology Co., Ltd. tech_support@tscprinters.com...

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