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Initializing the Microprocessor / Resetting the Microprocessor

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When do I Initialize the Microprocessor / Reset the Microprocessor and why?

Although you'll rarely need to "initialize the microprocessor" under normal operating conditions, there are a few cases the microprocessor may temporarily freeze or lock up. When this happens, simply follow the guidelines in the back of your owner's manual to "reboot" the microprocessor and restore normal operation.

If you experience some unusual behavior -- a channel that's suddenly silent, "forgotten" level adjustments, some eccentricities in your unit, this could be a sign you may need to reset the microprocessor. Of course, you should check all connections carefully first. If you've eliminated connection and setup errors as a source of potential problems, you may need to go through the initialization process.

The procedure will be listed as "Initialization of the Microprocessor" or "Resetting the Microprocessor" as each unit has its own individual protocol for reset. The reset procedure is usually listed towards the rear section of the owner's manual, but you will see exactly what page this procedure can be found on by looking at the "Table of Contents" in the front section of the manual.

There are several issues that can cause a unit to improperly work or freeze up, such as a jolt of static electricity or a current surge through an input. When you do initialize the microprocessor, please remember that this erases any saved settings you may have previously programmed into the unit. As a tip, if you write down your preferred settings BEFORE you reset your unit's microprocessor, you'll have an even easier task of setting up the unit after the reset occurs. With Networked models, you can use the Web (Browser) Control feature to back up your settings by saving a configuration file on your hard drive. How to use the Web Control feature is also listed in your owner's manual. For this feature, we recommend using Internet Explorer as the browser.

In the event you do initialize the microprocessor without saving your settings, please refer to your owner's manual for instructions on any setup tips.

*Note - If your owner's manual does not have the reset instructions due to age, please contact Denon Support directly by phone (201-762-6665) or by email:

For the US: Denon USA Contact Link

For Canada: Denon Canada Contact Link

**Note - If you had an installer setup your system, please first contact your installer to see if they can reset and then setup your system again as there may be specific EQ calibrations (Audyssey) that the installer will need to perform.

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