Philips AJ AJ3910 User Manual

A firmware update for the Philips part number 3910 (likely referring to the Denon DVD-3910 player) may be needed to enable features like HDMI output. However, the context does not provide a direct link or method to obtain the firmware. One user mentioned searching their files to find the update and sharing it later, suggesting it may not be officially or easily available.

Therefore, obtaining the firmware may require contacting others who own the device or searching in user forums.

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The Denon 3910 CD player may not play CDs due to one or more of the following reasons:

1. It may need a firmware update.
2. The laser lens could be dirty—using a cleaning disc might help.
3. The player might be aging or have internal dust buildup affecting performance.

These issues can cause the player to display "loading" and then show 0h00m00s without starting playback.

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