How to replace the backlight for the Allen Bradley PanelView Plus Terminals

This section shows how to replace the backlight for the 700, 1000,1250, and 1500 terminals. The 1250 high-bright terminals do not havea replaceable backlight.

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IMPORTANT Disposal: The backlights for these products contain mercury.Dispose of per applicable laws.

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Follow these steps to replace the backlight.

• 1. Disconnect power from the terminal.
• 2. Remove the display module bezel.

  
  

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  IMPORTANT The 700 series C display is not secured by screws and is onlyretained by a bracket. Use care not to drop the display once thebezel is removed.

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• 3. Remove the four screws that secure the display bracket for the 700 series C display.
• 4. Remove the four screws that secure the LCD display for all other displays.

  
  

• 5. Lift the LCD display and detach the display connector from thecircuit board.The circuit board layout may vary for each terminal model.The location of the connector varies by model.

  
  

• 6. Detach the backlight connectors from the circuit board.The 1250 has one or two backlight connectors depending on theseries of the display. The 1500 has four backlight connectors.

  
  

• 7. Follow these steps for the PanelView Plus 700 and 1000displays.

  a. Press the retaining tab that secures the backlight and then pullout the backlight.

  
  

  b. Insert the new backlight.

  
  

• 8. Follow these steps for the PanelView Plus 1250 and 1500displays.

  a. Remove the screws that secure the backlights and remove thebacklights.
  – The two backlights for the 1250 series A and B displays areeach secured with two screws. The single backlight for the1250 series C displays is secured with one screw.
  – For the 1500 series B displays, remove the tape and thenremove the backlights.

  
  

  b. Insert the new backlights and then secure each with the samescrews from the previous step and torque to0.117 Nm (1.04 lb•in).

• 9. Attach the LCD display connector to the circuit board.Refer to step 5.
• 10. Attach the backlight connector to the circuit board.Refer to step 6.
• 11. Secure the LCD display.

  a. Attach the display bracket then secure the display in thebracket for the 700 series C display.

  b. Attach the four screws for all othe displays.

  
  

  Tighten the screws and torque to 0.58 Nm (5…7 lb•in).

• 12. Replace the display module bezel.