Troubleshooting

When a TBS does not function properly when presenting a card, various components can be the cause. In this article, you will find a step-by-step guide for troubleshooting common malfunctions of the reader, the lock, and the display. Follow the checkpoints and quickly determine whether a component needs to be replaced or adjusted.

Malfunctions and Solutions

Problem Description	Action	Check	Result: OK	Result: Not OK
System does not turn on after presenting card	Replace battery	Check if the system turns on after presenting the card	√	Replace the Reader Unit
System displays “Close drum” after presenting card	Adjust lock sensor	Check if the lock is engaged after presenting the card	√	Replace and adjust the lock
Drum can be opened without presenting card	Remove the service key from the lock	Check if the lock is engaged after presenting the card	√	Replace and adjust the lock
Lock clicks after presenting card	Replace the battery	Check if the lock is engaged after presenting the card	√	Replace and adjust the lock
Display does not turn on after presenting card, lock does open	Replace the Reader Unit	Check if the display turns on after presenting the card	√	–
Lock does not open, display shows “Open drum”	Replace the lock	Check if the lock is engaged after presenting the card	√	Replace the wiring harness

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Malfunctions and Solutions

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