> For the complete documentation index, see [llms.txt](https://hlddocs.lookingglassfactory.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hlddocs.lookingglassfactory.com/getting-started/hld-86-setup-guide.md).

# HLD 86" setup guide

This guide walks you through unpacking the HLD 86", installing the included floor stand, playing the preloaded demo content, and optionally connecting an external computer.

{% hint style="warning" %}
Assembly and lifting require **3 to 4 people**. Switch off and disconnect the display from power before mounting, moving, or cleaning it. Only qualified personnel should open the display housing.
{% endhint %}

This page is a quick setup guide. Keep and read the complete Installation, Safety and User Manual supplied with your display before installation.

## What you'll need

* The HLD 86"
* The supplied AC power cable
* The remote controller
* The included Demo Media Player, connected and preloaded with demo content
* The included floor stand and its mounting hardware
* Tools appropriate for the supplied M8 fasteners
* Optional: an external computer and a compatible video cable:
  * HDMI 2.0
  * DisplayPort 1.2
  * USB-C with DisplayPort Alt Mode
* A flat, padded table large enough to support the display
* 3 to 4 people for the final mounting and lift

<figure><img src="/files/bP2TeCFqPSkxRoQ5NvmY" alt="The supplied power cable, remote controller, and floor stand"><figcaption><p>Power cable (1), remote controller (2), and included floor stand (3)</p></figcaption></figure>

<figure><img src="/files/c9iOfQCNhVrT1i8EbZYP" alt=""><figcaption></figcaption></figure>

## Before installation

### Acclimate the display

If the display was transported in cold weather or exposed to a large temperature change, let it slowly adjust to room temperature.

{% hint style="warning" %}
If condensation is present on or inside the display, do not power it on. Wait approximately **12 hours** before use.
{% endhint %}

### Unpack and inspect

1. Remove the packaging and keep it for future transport.
2. Confirm that the delivery matches your order.
3. Keep all supplied documentation.
4. Check the display and accessories for visible transport damage.
5. If anything is damaged or missing, stop and contact support before continuing.

## Choose a mounting option

### Included floor stand

Use the four-step process below to assemble the included floor stand and attach it to the display.

### Wall mount or third-party stand

The back of the HLD 86" has a **600 x 800 mm VESA pattern** with standard **M8 screw holes**.

{% hint style="warning" %}
Have a qualified installer select the mounting hardware, verify the supporting structure, and complete the installation.
{% endhint %}

<figure><img src="/files/c9iOfQCNhVrT1i8EbZYP" alt=""><figcaption></figcaption></figure>

## Assemble the included floor stand

### Step 1: Install the leveling feet

**Parts required**

* 1 stand base
* 6 hex nuts
* 6 leveling feet

1. Thread one hex nut onto each leveling foot.
2. Screw three leveling feet into the threaded holes along each short edge of the stand base.

The feet can be adjusted after installation to compensate for an uneven floor.

<figure><img src="/files/AR80CT0PVE1EGGe2A7mf" alt="Six leveling feet being installed in the floor stand base"><figcaption><p>Install three leveling feet along each short edge of the base.</p></figcaption></figure>

### Step 2: Attach the stand brackets

**Parts required**

* 2 stand brackets
* 6 M8 washers
* 6 M8x30 screws

1. Position both stand brackets on the stand base.
2. Align the mounting holes.
3. Secure each bracket with three M8 washers and three M8x30 screws.

<figure><img src="/files/33BAuk55ISAM4hdljDwA" alt="Two floor stand brackets being attached to the base"><figcaption><p>Attach both stand brackets to the base.</p></figcaption></figure>

### Step 3: Install the stand plate

**Parts required**

* 1 stand plate
* 4 M8 washers
* 4 M8x30 screws

1. Place the stand plate across the two stand brackets.
2. Align the four mounting holes.
3. Secure the plate with four M8 washers and four M8x30 screws.

<figure><img src="/files/lJyQEo58564dM5R73fw2" alt="The stand plate being attached across the two floor stand brackets"><figcaption><p>Secure the stand plate across the two brackets.</p></figcaption></figure>

### Step 4: Mount the display

**Parts required**

* 4 M8 washers
* 4 M8x55 screws - use the longer screws for this step

{% hint style="warning" %}
Place the display face down only on a **flat, padded table**. Use **3 to 4 people** to lift the completed assembly into its upright position.
{% endhint %}

1. Make sure the display is switched off and disconnected from power.
2. Carefully lay the display face down on the padded table.
3. Position the assembled floor stand on the back of the display.
4. Align the four mounting holes.
5. Secure the stand with four M8 washers and four M8x55 screws.
6. With 3 to 4 people, carefully lift the complete assembly into its upright position.
7. Adjust the leveling feet until the stand is stable and level.

<figure><img src="/files/tTwWqtL0Pdl0yCbnawYy" alt="The assembled floor stand being mounted to the back of the HLD 86 inch display"><figcaption><p>Use the four longer M8x55 screws to attach the stand to the display.</p></figcaption></figure>

<figure><img src="/files/c9iOfQCNhVrT1i8EbZYP" alt=""><figcaption></figcaption></figure>

## Connect video and power

The video, audio, control, and power connections are on the back of the display.

<figure><img src="/files/WWWISTHqT6OKbtnjguKH" alt="Rear and side views of the HLD 86 inch display with numbered controls and connections"><figcaption><p>Rear controls and connections</p></figcaption></figure>

| #  | Control or connection | Purpose                                                        |
| -- | --------------------- | -------------------------------------------------------------- |
| 1  | Carry handle          | Use while positioning the display during installation.         |
| 2  | Light sensor          | Adjusts screen brightness based on ambient light when enabled. |
| 3  | IR sensor             | Receives commands from the remote controller.                  |
| 4  | Status LED            | Shows power, signal, and startup status.                       |
| 5  | OSD buttons           | Control power, menus, selection, and settings.                 |
| 6  | Speakers              | Two integrated 10 W speakers.                                  |
| 7  | HDMI 2.0              | Video and audio input.                                         |
| 8  | DisplayPort 1.2       | Video and audio input.                                         |
| 9  | USB-C                 | Video through DisplayPort Alt Mode, plus touch/data.           |
| 10 | 3.5 mm AUX out        | Audio output for headphones or powered speakers.               |
| 11 | USB-A 5V/3A out       | Power output for a compatible peripheral.                      |
| 12 | RS232                 | 3.5 mm serial connection for OSD control.                      |
| 13 | AC input              | 100-240V AC, 50/60Hz power input.                              |
| 14 | AC power switch       | Switches incoming AC power on or off.                          |

### Play the included demo content

The Demo Media Player arrives connected to the display and includes preloaded demo content. No additional video or player cabling is required for your first power-on.

1. Set the rear **AC power switch** to **OFF**.
2. Connect the supplied AC cable to the display and a compatible power source.
3. Set the rear **AC power switch** to **ON**.
4. If the display does not start automatically, press the power button on the rear OSD controls or on the remote controller.
5. Wait for the preloaded demo content to appear before changing inputs.

The display searches for an active input automatically by default. If the demo content does not appear, use the remote's **AV/TV** button or the OSD **Input** menu to select **HDMI**.

{% hint style="info" %}
The **Default Power** firmware setting controls whether the display turns on automatically after AC power is applied. This guide assumes that setting is **Off**, so you need to press the power button. If the setting is **On**, the display starts when AC power is applied and you can skip step 4.
{% endhint %}

## Use the HLD with an external computer

To use a PC or Mac instead of the included Demo Media Player:

1. Shut down the computer.
2. Set the rear **AC power switch** to **OFF** and disconnect the display from AC power.
3. Disconnect the Demo Media Player's HDMI cable from the display. If your computer will use USB-C for video or touch, also disconnect the player's touch/data cable from the display's USB-C port.
4. Connect the computer to the display using **HDMI**, **DisplayPort**, or **USB-C with DisplayPort Alt Mode**.
5. If you are using HDMI or DisplayPort and want touch input, connect a compatible USB data cable between the computer and the display's USB-C port.
6. Connect the supplied AC cable to the display and a compatible power source.
7. Turn on the computer.
8. Set the rear **AC power switch** to **ON**.
9. If the display does not start automatically, press the power button on the rear OSD controls or on the remote controller.

A single compatible USB-C connection can carry both video and touch/data.

The display searches for an active input automatically by default. If the computer does not appear, use the remote's **AV/TV** button or the OSD **Input** menu to select the connected input.

{% hint style="info" %}
To return to the preloaded demo content, set the rear AC power switch to **OFF** and disconnect the display from AC power. Disconnect the external computer, reconnect the Demo Media Player's cables to their original ports, and then follow the steps above.
{% endhint %}

{% hint style="warning" %}
If you notice smoke, a burning smell, or unusual noise, disconnect the display from power immediately and stop using it.
{% endhint %}

## Check the status LED

| LED state | Meaning                                                                                | What to do                                                                        |
| --------- | -------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------- |
| Off       | The display has no power or is in sleep mode.                                          | Check the AC cable and rear power switch, or wake the display.                    |
| Red       | No video signal is present on the selected input, or the display is in soft power-off. | Check the source and cable, select the correct input, and press the power button. |
| Yellow    | The display failed to start.                                                           | Disconnect power and contact support.                                             |
| Green     | A valid video signal is present.                                                       | The display is ready to use.                                                      |

{% hint style="info" %}
Before moving or cleaning the display, power it off, set the rear AC power switch to **OFF**, disconnect the AC cable, and wait until the status LED is off.
{% endhint %}

## Troubleshooting

### The display has no image

1. Confirm that the AC cable is secure and the rear power switch is **ON**.
2. If you are using the included Demo Media Player, allow it time to start and confirm its cables are secure. If you are using an external computer, confirm that it is powered on and connected.
3. Select the connected input from the remote or OSD menu.
4. If you are using USB-C, confirm that the source and cable support DisplayPort Alt Mode.
5. If graphics drivers were just installed or updated, wait one to two minutes for the computer to finish starting.

### Touch is not responding with the Demo Media Player

The touch function may not respond when the HLD 86" first powers on, or it may stop responding after a period of use.

1. Locate the USB-C cable connected to the included Demo Media Player.
2. Disconnect the USB-C cable from the Demo Media Player.
3. Reconnect the cable securely.
4. Wait for the touch connection to be restored, then test touch again.

### The display shows a yellow status LED

The display did not start correctly. Disconnect it from power and contact support.

### The stand is not level

With the display upright and supported, adjust the six leveling feet until the base is stable and level.

<figure><img src="/files/c9iOfQCNhVrT1i8EbZYP" alt=""><figcaption></figcaption></figure>

## Next steps

Once the status LED is green and your source is visible:

* Use [HLD Author](/apps-and-tools/hld-author.md) to preview and prepare content for the display.
* Learn how to replace or add to the preloaded content with the [Demo Media Player](/managing-content/using-the-demo-media-player.md).
* For long-term deployments, set up a [Yodeck](/managing-content/yodeck-digital-signage-player.md) or [BrightSign](/managing-content/brightsign-digital-signage-player.md) digital signage player.

## Support

If you have questions or encounter an issue with your HLD 86", contact us at <support@lookingglassfactory.com>.