Touchscreen Replacement, CT 2.0 Head Unit

Overview

Use this guide to remove and replace the touchscreen in a Countertop 2.0 head unit.

In this article (click to jump):

• Required Tools & Parts
• Replacement Procedure
  • Task 1: Power Off the Bevi
  • Task 2: Remove the Shell
  • Task 3: Remove the Front Housing
  • Task 4: Remove the Touchscreen
  • Task 5: Replace the Touchscreen
  • Task 6: Reinstall the Front Housing
  • Task 7: Reinstall the Shell
  • Task 8: Test the Bevi Machine

Required Tools & Parts

• 720-0368 - FRU - TOUCHSCREEN ASSEMBLY
• Vehicle key or small flathead screwdriver
• Flush cut pliers
• 1x 5.5” zip tie

Replacement Procedure

Task 1: Power Off the Bevi

1. Power off the Bevi using the power switch on the front of the chiller.
2. Disconnect the power cord from the back of the chiller.

Task 2: Remove the Shell

1. Place one hand on the left and one hand on the right of the shell and twist toward one side until the shell releases from the front of the head unit.
2. Insert a key or flatheaded screwdriver straight into the shell latch-release hole until the tool stops moving.
   1. CAUTION: It is possible to slip the tool underneath the latch.

3. Lift the shell up to remove it from the CT 2.0.

CAUTION: The shell may require some force to remove.

Task 3: Remove the Front Housing

1. Remove the nozzle shroud.
   1. Identify the tab extending downward from the nozzle shroud and pull on the tab until the nozzle shroud releases from the front housing.
   2. Place the nozzle shroud in a safe location.

2. Remove the drip tray from the base of the head unit and set it aside.
   1. Ensure the drip tray and its grate stay together.
3. Remove the flavor lines from the locating features on either side of the front housing.
4. Disengage the front housing’s snaps.
   1. There are two sets of snaps - one set on the base of the head unit and another set behind the touchscreen.
   2. Push on the touchscreen while depressing the touchscreen snaps to disengage the front housing.

5. Remove the front housing from the head unit.
   1. Once the front housing is released from the touchscreen, disengage the lower front housing attachment snaps to release the front housing from the head unit.
   2. Tilt the front housing forward to assist in removal.
   3. Lift the front housing up and out from the head unit’s base.

Task 4: Remove the Touchscreen

1. Remove the power cable from the SBC.
   1. Depress and hold the lock latch to release the connector from the SBC.
   2. Ensure to hold onto the plastic connector when disconnecting the cable from the board.

2. Carefully cut the zip tie securing the display cable’s ferrite to the pump tower.
   1. Take care not to cut or knick any cables while removing the zip tie.

3. Disconnect the remainder of the cabling from the SBC.
   1. LED Backlight Cable
   2. Video Cable (LVDS)
   3. Touch Sense Cable
   4. The backlight cable has a lock latch that must be depressed while disconnecting it.

CAUTION: Do not pull directly on any of the wires; they are easy to damage and the wires may pull out of the connectors.

4. Unroute the flow meter’s cable from behind the touchscreen.

5. Release the touchscreen from its mounting snaps (labeled A and B).
   1. Use a thumb and index finger to pull the mounting tab out while pulling on the touchscreen until it unseats.

6. Remove the touchscreen from the pump towers.

Task 5: Replace the Touchscreen

1. Unpackage the new touchscreen.
2. Remove the tape holding down the touchscreen’s cables.

3. Seat the touchscreen into the pump towers.
   1. Ensure all cables are away from pinch points prior to seating the touchscreen.
   2. Push the touchscreen in one side at a time until an audible click is heard and the mounting snaps engage.
4. Route the cabling as it was prior to removing the touchscreen.
   1. Take care not to excessively pull on the cables.
5. Use a zip tie to install the ferrite to its original location on the pump towers.

6. Cut the excess length of the zip tie.
   1. Take care not to cut any cables when cutting the zip tie.
7. Reconnect all touchscreen cables to the SBC.
   1. Ensure all cables with a lock latch audibly click into the connector on the SBC.
   2. Ensure all cables without a lock latch are fully seated in their connectors.
8. Reconnect the power cable from the control board to the SBC.
   1. Ensure the lock latch clicks into place.

Task 6: Reinstall the Front Housing

1. Place the front housing on the base of the head unit.
   1. There is an alignment rib on the base of the head unit which helps align the front housing onto the base.
   2. Align the bottom of the front housing with the front housing attachment snaps (labeled E and F) and push the front housing back and down to engage the snaps.

2. Reinstall the front housing.
   1. Visually align the front housing attachment features behind the touchscreen.
   2. Simultaneously pull the touchscreen forward while pushing the front housing backward to engage the front housing attachment features behind the touchscreen (labeled S and T).
   3. Note: the touchscreen may need to be pushed down while connecting the touchscreen and front housing to help engage the mounting snaps.

3. Insert the flavor lines back into their routing clips.
4. Reinstall the nozzle shroud.
   1. After installing the nozzle shroud, check that the nozzle and all eight flavor injectors are unobstructed by the shroud.

Task 7: Reinstall the Shell

1. Loosely place the shell onto the head unit.
   1. Ensure proper alignment of the hooks on the front of the shell.
   2. Ensure no cabling or flavor lines are pinched in the shell prior to seating it. Components at risk of being pinched are:
      1. Flavor lines - pump to nozzle
      2. Flow meter cable
      3. Cables from the touchscreen
   3. Ensure the power cord is effectively routed through the port on the back of the shell.
2. Reseat the shell onto the head unit.
   1. Firmly press on the top of the shell directly above one of the snaps to seat it into the touchscreen.
   2. Perform the same step on the other side of the shell.
   3. Ensure the snaps fully click into place.
3. Replace the drip tray.
4. Reconnect the power cord to the back of the chiller.
5. Power on the Bevi.
   1. Monitor the touchscreen as the Bevi powers on.

Task 8: Test the Bevi Machine

1. Test the functionality of the Bevi machine to ensure that your issue has been resolved.