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The Speaker Company me240 Replacing the Power Supply Unit, Refer to .4 to remove the main board

Models: me240

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3.5Replacing the Power Supply Unit

1.Refer to section 3.4 to remove the main board.

2.Disconnect two connectors from the power switch.

3.Take off the power supply cover (black mylar). Disconnect two connectors and remove four screws on the power supply unit.

Screws

3.Replace the power supply unit.

4.Reassemble the parts in the reverse procedures.

Page 18

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The Speaker Company me240 manual Replacing the Power Supply Unit, Refer to .4 to remove the main board, Screws

Contents

THERMAL TRANSFER / DIRECT THERMAL BAR CODE PRINTER SERVICE MANUAL ME240/ ME340TABLE OF CONTENT 1. FUNDAMENTAL OF THE SYSTEM 1.1. OverviewFront View 1. Ribbon rewind spindle 2. Ribbon supply spindle Interior View3. Print head pressure adjustment knob 4. Ribbon end sensor 5. Print head release lever 6. Label roll guard 7. 3” core adapterSD card spec Rear ViewRecommended SD card specification SD card capacityTranscend, Panasonic V1.0microSD 1 GB V2.0 SDHC CLASS2.1 Summary of Board Connectors 2. ELECTRONICSDescription ConnectorDescription VoltageDescription DescriptionVoltage VoltageCentronics power connector ConnectorCentronics soft cable connector Description2.2 Pin Configuration StrobeCONFIGURATION Ethernet3.1Remove the Electronics Cover 4. Reassemble the parts in the reverse procedures3. MECHANISM 1. Remove three screws on back of the printer Screws2. Reassemble the parts in the reverse procedures Screws Screws 3.2 Remove the Right Side Cover2. Disconnect harness from the Key/LCD panel module 3.3 Replacing the Key/LCD Panel Module1. Refer to section 3.1 to remove the electronics cover 3. Push two tabs to remove/replace the Key/LCD panel module3.4 Replacing the Main Board 3. Disconnect all connectors from the main boardThe connector to power supply The tab of harness 1. Refer to section 3.1 to remove electronics cover5. Reassemble the parts in the reverse procedures 4. Remove four screws on the main board Screws Screws4. Replace the main board 3. Replace the power supply unit 3.5 Replacing the Power Supply Unit2. Disconnect two connectors from the power switch 1. Refer to section 3.4 to remove the main board3. Remove three screws on the stepping motor Screws 2. Disconnect the stepping motor connector Stepping motor connector3.6 Replacing the Stepping Motor 4. Replace the stepping motor2. Disengage the print head lift lever 3.7 Replacing the Platen Roller Assembly1. Open printer right side cover 3. Remove one screw to remove the lower front coverFor regular labelFor thick label Thickness is 0.19 mm Right side bushing Platen roller assembly7. Reassemble the parts in the reverse procedures Indicator The default position is set2. Remove one screw from the mechanism Screws 3.8 Replacing the Print head ASSY1. Open the printer right side cover 3. Disengage the print head release leverTenons Print head module New screw3.9 Replacing the Media Sensor Module 3. Remove two screws to remove the ribbon end sensor module Screws Ribbon end sensor module connector3.10 Replacing the Ribbon End Sensor Module 7. Reassemble the parts in the reverse procedures3. Remove one screw that fixing the ribbon supply spindle Screw Ribbon encoder sensor module connector3.11 Replacing the Ribbon Encoder Sensor Module 1. Refer to section 3.1 to remove the electronics cover8. Reassemble the parts in the reverse procedures 7. Remove one screw to replace the ribbon encoder sensor module Screw1. Refer to section 3.1 to remove the electronics cover 3.12 Centronics Parallel Interface Board Installation Option2. Remove two screws to remove the interface cover Screws Screws5. Loosen the connector before install the flat cable 8. Reassemble the parts in the reverse procedures3.13 Cutter Module Installation Option 6. Close the cutter cover 3.14 Peel-off Module Installation Option 6. Close the peel-off cover 3.15 Print Engine Module Specification Option Print engine module measurementsPrint engine module Print engine module with peel-off Bottom view Print engine module with cutter1. All measurements are in mm Problem 4. TROUBLESHOOTING4.1 Common Problems Recovery ProcedureFLASH / DRAM Not PrintingMemory full SD card is unable to useLCD panel is dark and keys are skew when printingPoor Print Quality not workingThe printing position of small reboot the printerPower and Error LEDs are label is incorrect4.2 Print Head Pressure Adjustment Knob Symptom 4.3 Mechanism Fine Adjustment to Avoid Ribbon WrinklesAdjustable Printer Parts upper right direction “ˊ”Left knob Right knob4.4 Z-axis Mechanism Adjustment Knob Z-axis mechanism adjustment knob Marker positionPage  Lint-free cloth  Vacuum / Blower brush  100% ethanol 5. MAINTENANCE2. The cleaning process is described as following Printer Part Do not touch printer head by hand. If you touch it careless, please use ethanol to clean it Date UPDATE HISTORYContent EditorPage Corporate Headquarters