[Topcon CT-80]: Automatic Measurement Instructions Not Appearing On Screen

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If your Topcon CT-80 is failing to show on-screen instructions in automatic-mode, an internal LED circuitry board, used for sensing proper alignment and application, may be faulty. Although the instrument may be able to be used (with accuracy) in manual mode, it is not recommend to continue to use the instrument if on-screen instructions fail to display properly in automatic mode. These internal sensors are employed to validate application measurements and the instrument may produce unreliable and inconsistent results without their proper functioning.


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