How to change the battery of the DENON TU-245 audio tuner?

Q: How to change the battery of the DENON TU-245 audio tuner?

The DENON TU-245 tuner has a backup battery for saving preset memory (stations and settings). This battery allows you to maintain your presets for about a week at normal temperature when the device is turned off. Location and access: The backup battery is located in a small compartment usually found at the bottom or back of the device The compartment is secured with a small clip or a screw that you need to carefully remove Before any intervention, turn off and unplug the tuner from the power source for your safety Replacement procedure: Gently open the battery compartment without damaging the securing clip Carefully note the polarity (+ and -) of the battery before removing it to avoid incorrect installation Remove the old worn battery and replace it with a new one of the same type Strictly follow the orientation indicated in the compartment: the positive pole (+) must correspond to the + symbol in the housing Close the compartment and ensure that the clip is securely fastened or that the screw is properly tightened Important: The TU-245 manual does not specify the exact type of battery. Check the label or the engraving on the compartment to know the exact model (often a button cell like CR2032 or similar). You can also contact Denon customer service for confirmation. Once the battery is replaced, plug the device back in and check that your presets are retained.

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Accepted Answer

The DENON TU-245 tuner has a backup battery for saving preset memory (stations and settings). This battery allows you to maintain your presets for about a week at normal temperature when the device is turned off.

Location and access:

The backup battery is located in a small compartment usually found at the bottom or back of the device
The compartment is secured with a small clip or a screw that you need to carefully remove
Before any intervention, turn off and unplug the tuner from the power source for your safety

Replacement procedure:

Gently open the battery compartment without damaging the securing clip
Carefully note the polarity (+ and -) of the battery before removing it to avoid incorrect installation
Remove the old worn battery and replace it with a new one of the same type
Strictly follow the orientation indicated in the compartment: the positive pole (+) must correspond to the + symbol in the housing
Close the compartment and ensure that the clip is securely fastened or that the screw is properly tightened

Important: The TU-245 manual does not specify the exact type of battery. Check the label or the engraving on the compartment to know the exact model (often a button cell like CR2032 or similar). You can also contact Denon customer service for confirmation. Once the battery is replaced, plug the device back in and check that your presets are retained.

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