# X-carriage PCB Replacement

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### Repair guides are to be used when directed by Voltera Support only!

**Performing these without Voltera Support's direction could be the wrong resolution path for your issue and could cause damage to your machine. If you haven't been in contact with Voltera Support about your issue please email <support@voltera.io> or reach out in the chat before proceeding.**
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## Before you begin

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Before beginning this procedure you should have NOVAs bridge removed following the [NOVA bridge replacement guide](https://docs.voltera.io/docs/repairs/nova/nova-repair-guides-catalog/complex-repairs/bridge-replacement) up to the **Installing the new bridge** section.&#x20;
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This guide will take you through replacing the X-carriage PCB in NOVAs bridge. Before beginning this guide you should have been in contact with our support team and received replacement parts and calibration jigs.

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**Safety first!** Before starting any repair, take a moment to review the [safety information in your user manual.](https://docs.voltera.io/docs/nova/downloads/nova-user-manual) An online version of the guidelines can also be found [here.](https://docs.voltera.io/docs/nova/getting-started/safety-guidelines)
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As you work through this guide please reach out to our email <support@voltera.io> or through the chat if you run into any issues or have any questions. We are more than happy to assist you virtually with this repair.&#x20;

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**When in doubt, reach out!**
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#### Estimated Repair Time:

* 3 hours (including bridge removal)

#### Tools you will need:

* Screwdriver
  * T20 Torx
  * T10 Torx
  * T6 Torx
* 3mm hex key
* A tray or container for screws

#### Parts you have received from Voltera:

* X-carriage PCB

## Bridge setup

With the bridge removed from NOVA place it on a flat, sturdy working surface.&#x20;

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Ensure you have enough working room and a secure place to store loose screws and hardware.
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<figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/PdHJlrCQmTiNtNA1gPit/IMG_6268.JPG" alt="" width="563"><figcaption></figcaption></figure>

## Remove the X-carriage PCB

To access the x-carriage PCB we need to remove the right bridge end plate and slide out the cable tray.&#x20;

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The right side of the bridge does not have ribbon cables.&#x20;
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<figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/PGAi8lTbol1q50zzihQN/image.png" alt=""><figcaption></figcaption></figure>

{% stepper %}
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#### Remove the bridge 90° mounting bracket

Remove the two T25 torx screws securing the 90º mounting bracket to the bridge.

<figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/PEhEYk71HeXEgrGecCI2/image.png" alt=""><figcaption></figcaption></figure>
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#### Remove the right bridge end plate

Using a screwdriver along with a T20 and a T10 torx bit remove all of the screws securing the bridge end plate.&#x20;

* T20 - Yellow highlight&#x20;
* T10 - Green highlight

<div><figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/stPaxcgn69XYV9OU46rW/image.png" alt="" width="563"><figcaption></figcaption></figure> <figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/AgmDsNeLFepS9rjQzvaF/image.png" alt="" width="563"><figcaption></figcaption></figure></div>

<figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/C3BRQDLhyQbgBNVv7mO6/image.png" alt="" width="449"><figcaption></figcaption></figure>
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#### Remove the bridge cable tray

Remove the two T10 screws securing the bridge cable tray to the left bridge end plate.&#x20;

<div><figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/albtR4Cp8BF1E8gKnPdw/image.png" alt=""><figcaption></figcaption></figure> <figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/VqpSxDJJSRYmdylEqGPX/image.png" alt=""><figcaption></figcaption></figure></div>

Now you can slide the bridge cable tray off of the bridge.

<figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/AvN5ujAiqLl5kJ15BNeX/image.png" alt=""><figcaption></figcaption></figure>
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#### Remove the X-carriage bottom plate

Using a 3mm hex key remove the 4 screws securing the x-carriage bottom plate to the bridge.&#x20;

<div><figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/r7VhjmOi5HtHF0mYsITM/image.png" alt="" width="563"><figcaption></figcaption></figure> <figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/IUKgAKEqtGigX9SHZlbR/image.png" alt="" width="524"><figcaption></figcaption></figure></div>
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#### Remove the X-carriage PCB

Use a screwdriver and T6 torx bit to remove the two screws securing the port connectors to the x-carriage PCB.

<div><figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/92gdiPh5Si0pzdtSjfnO/image.png" alt="" width="496"><figcaption></figcaption></figure> <figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/dibIUdIU442InKZ3Lt0p/image.png" alt="" width="527"><figcaption></figcaption></figure></div>

Disconnect the port flex cables from the x-carriage PCB by using your fingers to lift up on the metal tabs.&#x20;

{% embed url="<https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYKzrL5Rz2l0ufpEa39Yc%2Fuploads%2FkFVATzuCWYZWnEBDfXrs%2FIMG_6245.mp4?alt=media&token=0bb1a355-8ee8-4a61-924c-b8827d767cd3>" %}

<figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/uRLxvGG6o2Arw2bZd6oG/image.png" alt=""><figcaption></figcaption></figure>

Lift the x-carriage PCB out of the bridge and disconnect the left and right motor wire harnesses on the backside of the board by pinching the release tab on either connector.&#x20;

<div><figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/IPFZwLgDXi2F2tOZPQFX/image.png" alt="" width="550"><figcaption></figcaption></figure> <figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/5lDSfIwV3akKoV9p93d6/image.png" alt="" width="530"><figcaption></figcaption></figure></div>

With the x-carriage board loose from the bridge, remove the plastic clip securing the ribbon cables and disconnect both ribbon cables.&#x20;

<div><figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/jJl2a5ebkEXbxmWOu4s4/image.png" alt="" width="563"><figcaption></figcaption></figure> <figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/rvC9qTWdm7smTkr5LRuC/image.png" alt="" width="563"><figcaption></figcaption></figure></div>

{% hint style="info" %}
In case you've forgotten, here is a video of how to properly disconnect a ribbon cable:

<a href="https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYKzrL5Rz2l0ufpEa39Yc%2Fuploads%2Fjr3tZPassrlKMV6I7QmY%2FIMG_6217.mp4?alt=media&#x26;token=db5bac35-669b-4a5e-8ba2-2092dbc51be2" class="button primary">How to disconnect a ribbon cable</a>
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## Reassemble the bridge

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#### Connect the new X-carriage PCB

Connect the new x-carriage PCB to the ribbon cables. Ensure that the cables are fully inserted and the blue end is sitting parallel to the connector.&#x20;

<figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/2CVDFItqDWPQnJxLDmCw/image.png" alt=""><figcaption></figcaption></figure>

Install the black plastic cable clip so that it holds the ribbon cables to the x-carriage PCB.

<figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/obNdOkSRMk7CXU4LX9Oh/image.png" alt=""><figcaption></figcaption></figure>

Connect the left and right motor wire harnesses to the backside of the x-carriage board.&#x20;

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Ensure that the two port flex cables are accessible and sitting outside of the tool carriage.&#x20;
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<div><figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/SFjWm2n12wBf9DXvDYym/image.png" alt="" width="563"><figcaption></figcaption></figure> <figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/igRhhlPjc3pV1liNlTiK/image.png" alt="" width="563"><figcaption></figcaption></figure></div>

Push the x-carriage PCB into the tool carriage so that it sits flush and the port flex cables are accessible.&#x20;

<figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/eb5imeCAcrz71X5GF0la/image.png" alt=""><figcaption></figcaption></figure>

Connect the port flex cables by pushing the end of the metal cable downward into the connector. It will click into place.

<div><figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/JXydFMcOl1VUrA9Kvuh8/image.png" alt="" width="518"><figcaption></figcaption></figure> <figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/hiYLA2QvGalilIZlWMFN/image.png" alt="" width="563"><figcaption></figcaption></figure></div>

Secure the two port flex cables to the x-carriage PCB using the T6 torx screwdriver.&#x20;

<figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/gDaKEPHJF8Ih9yhoOyiu/image.png" alt=""><figcaption></figcaption></figure>
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#### Attach the X-carriage bottom plate

Using a 3mm hex key attach the x-carriage bottom plate to the bridge with the 4 black screws.

<figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/OTHZErTvzufyKUrZcjay/image.png" alt=""><figcaption></figcaption></figure>
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#### Attach the bridge cable tray

Slide the bridge cable tray into place.

<figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/2sjygHAB6VTxfe4SWzub/image.png" alt=""><figcaption></figcaption></figure>

Secure the bridge cable tray to the left side of the bridge with two M3 x 12 self tapping screws.

<div><figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/VqpSxDJJSRYmdylEqGPX/image.png" alt=""><figcaption></figcaption></figure> <figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/albtR4Cp8BF1E8gKnPdw/image.png" alt=""><figcaption></figcaption></figure></div>
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#### Attach the right bridge end plate

Attach the bridge end plate to the bridge using a screwdriver in order:

1. T20 - Red highlight
2. T10 - Yellow highlight
3. T10 - Green highlight (finger tight)&#x20;

<figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/r7KJXszCPlHQmYRxwpbI/image.png" alt=""><figcaption></figcaption></figure>
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#### Attach the bridge 90° mounting bracket

Secure the 90º mounting bracket to the bridge using a screwdriver with a T25 torx bit.&#x20;

<figure><img src="https://content.gitbook.com/content/Ug3mbo6FhPbGOGvlUwTu/blobs/PEhEYk71HeXEgrGecCI2/image.png" alt=""><figcaption></figcaption></figure>
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## Repair Complete!

Congratulations, you have successfully replaced NOVAs X-carriage PCB!

To re-attach the bridge to NOVA and recalibrate go back to the [NOVA bridge replacement guide](https://docs.voltera.io/docs/repairs/nova/nova-repair-guides-catalog/complex-repairs/bridge-replacement) and start from step X.&#x20;

Please reach back out to our support team through email (<support@voltera.io>) or the chat to let them know everything went well. We will arrange a shipping label to return the old parts back to us for further testing.