Correcting HDMI Crossover Problem in Denon AVR X8500H

A common issue that many Denon AVR X8500H owners run into is the HDMI crossover problem. When a single HDMI cable is used to connect the TV, receiver, and gaming console or Blu‑ray player, the signals can get mixed or routed incorrectly. The result is that audio or video may appear on the wrong device, or the picture may be distorted. This guide explains the root cause of the crossover problem, how to identify it, and step‑by‑step instructions for correcting it on a Denon X8500H.

Why HDMI Crossover Happens

HDMI cables carry both audio and video over a single pair of wires. In a typical home theater setup, the receiver receives the signal from the TV via HDMI ARC or a dedicated HDMI input. The receiver then outputs the processed signal back to the TV or to a separate display. Because the same cable is used in both directions, the device can interpret incoming and outgoing signals as the same type if the cable or the device’s firmware has an error.

The Denon X8500H uses a “crossover” mode on its HDMI inputs. When this mode is enabled and the cable is not labeled correctly, the receiver can swap the audio and video streams. The crossover problem shows up in a few ways:

• The TV displays black bars or a static image while the audio continues to play.
• The receiver shows a “no signal” icon but the TV still displays the picture.
• Audio comes from the wrong speaker channel or the surround mix is missing.

Identifying the issue early is important because it can lead to firmware updates, incorrect cable connections, or even hardware damage if left untreated.

Signs of an HDMI Crossover on the X8500H

If you notice any of these symptoms, it is a good idea to follow the troubleshooting steps below.

Preparing to Fix the Crossover

Before starting, make sure you have:

• The latest firmware for the Denon X8500H downloaded and available.
• All cables in good condition; a damaged cable can cause crossover.
• A clear labeling system for each HDMI port (e.g., “HDMI 1 – TV”, “HDMI 2 – Blu‑ray”).

Also, keep the receiver in a cool place and unplug it during the troubleshooting process to prevent any power spikes.

Step‑by‑Step Guide to Correcting HDMI Crossover

1. Disconnect All HDMI Cables

Begin by unplugging every HDMI cable from the receiver and the TV. This ensures no signal interference during the process.

2. Inspect and Replace Cables

Check each HDMI cable for visible damage. Look for bent pins, frayed wires, or any signs of wear. If any cable appears suspect, replace it with a new high‑speed HDMI cable that supports HDMI 2.0 or higher.

3. Label Each HDMI Port

Assign a clear label to each HDMI port on the receiver and TV. Use the same labeling system on the cables. For example:

• Receiver HDMI 1 – TV
• Receiver HDMI 2 – Blu‑ray
• Receiver HDMI 3 – Game console

Consistency reduces confusion and helps identify the correct port during the crossover correction.

4. Connect the TV to Receiver via HDMI ARC

Plug the TV’s HDMI ARC port into the receiver’s HDMI ARC port. Use a single cable for both input and output. If the TV has multiple ARC ports, use the one that is recommended in the TV’s manual.

5. Configure the Receiver’s HDMI Settings

Press the Setup button on the receiver’s remote and navigate to the HDMI settings menu.

• Locate the “HDMI Input Settings” option.
• For each HDMI input, set the “HDMI Crossover” setting to Off.
• Save the changes and exit the menu.

This step forces the receiver to treat each input as a distinct signal source rather than crossing audio and video.

6. Test Audio and Video Separately

With the cables connected, turn on the TV and receiver.

• Set the TV to display the HDMI ARC input.
• Play a video on the TV.
• Listen for audio from the receiver.

If the picture and audio are both present, the crossover has been resolved for this port.

7. Repeat for All Other HDMI Inputs

Follow steps 5 and 6 for each additional HDMI input. Verify that the TV and receiver display the correct audio and video for each source.

8. Check for Firmware Updates

Navigate to the receiver’s System menu and select Firmware Update.

• If an update is available, download it onto a USB flash drive and follow the on‑screen instructions.
• Firmware updates often include bug fixes for HDMI signal handling.

9. Perform a Final Test

After all inputs are verified and firmware is updated, do a final run‑through:

• Switch between sources on the TV.
• Ensure the audio levels remain consistent and no channels are missing.
• Confirm that no black bars or static appear when switching inputs.

If all checks pass, the HDMI crossover problem should be fully corrected.

Common Pitfalls to Avoid

• Using the same cable for multiple sources without proper labeling – This can confuse the receiver’s input detection logic.
• Leaving the receiver’s HDMI crossover setting enabled – Even if the cable is good, the software setting will still swap audio and video.
• Running cables through tight corners or under heavy weight – This can damage the internal wiring and lead to signal loss.
• Applying firmware updates without a stable power source – Power interruptions can corrupt the firmware and create new issues.

Additional Tips for a Stable Setup

• Use a powered HDMI switcher if you have more inputs than the receiver’s ports.
• Keep the receiver’s firmware current to benefit from the latest HDMI 2.1 support.
• Place the receiver in a well‑ventilated area to prevent overheating, which can affect signal integrity.
• Periodically clean the HDMI connectors with a dry, lint‑free cloth to remove dust.

When to Seek Professional Help

If, after following these steps, you still experience intermittent audio/video loss or the crossover returns, contact Denon support. A hardware fault in the HDMI circuitry may require professional diagnosis or repair. Additionally, if you are unsure about replacing cables or updating firmware, a qualified technician can provide assistance.

By methodically disconnecting, inspecting, labeling, and configuring the HDMI inputs on the Denon AVR X8500H, you can eliminate the crossover problem and enjoy clean, reliable audio and video. Remember to keep your equipment updated and well‑maintained, and you’ll enjoy a seamless home entertainment experience for years to come.