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Motorola Xoom Tablet Repair with an Ultrasonic Cleaner

One of the most advanced tablets in the market, the Motorola Xoom Tablet runs Android 3.0 Honeycomb and comes with a 10.1" HD widescreen display and HDMI connectivity. Thin and powerful, the Xoom Tablet features Motorola's Bluetooth Wireless keyboard, a 5 megapixel camera, a 2 megapixel front-facing camera, and 720p HD video recording capability. With these amazing features, it's ideal to keep your Motorola Xoom Tablet in top shape through regular maintenance. Cleaning your printed circuit boards (PCBs) with an ultrasonic cleaner is one of the best ways to ensure optimum performance.

Motorola Xoom Tablet units can take a lot of abuse including being left out in the rain, dropped in the soup or otherwise rendered inoperable. Unless your Motorola Xoom Tablet is irreparably damaged, it can most likely be restored to operation in an ultrasonic printed circuit board cleaner. With the same technology used by printed circuit board manufacturers, ultrasonic circuit board cleaning quickly and safely removes contaminants from the delicate components in your Motorola Xoom Tablet.

Here you will learn:

  • How an Ultrasonic PCB Cleaner Works
  • How to Select and Set Up your Circuit Board Cleaner
  • How to Disassemble, Clean and Reassemble your Motorola Xoom Tablet

How Ultrasonic PCB Cleaners Work to Restore Your Motorola Xoom Tablet

Ultrasonic cleaning baths are used in a wide range of applications to remove virtually any soil or contamination by using the power of cavitation action. This is the term used to describe the implosion of billions of minute bubbles contacting Motorola Xoom Tablet PCB components and surfaces. The bubbles are created by generator-powered ultrasonic transducers bonded to an ultrasonic cleaning tank and typically operate at an ultrasonic frequency of 37 to 42 kHz (37,000 to 42,000 cycles per second).

When the bubbles implode contaminants are quickly and safely removed from PCB surfaces without damaging delicate parts. So tiny are the bubbles that they penetrate minute cracks, crevices and blind holes that might lodge dried residue, dust and dirt particles. The ultrasonic PCB cleaning system will complete the job in as little as 10 to 15 minutes. And it will do it in an environmentally friendly manner because the ultrasonic circuit board cleaning solution formula is a biodegradable concentrate that minimizes disposal problems.

How to Select and Set Up your Motorola Xoom Tablet Circuit Board Ultrasonic PCB Cleaner

Ultrasonic PCB cleaners come in a variety of sizes from a table-top ultrasonic cleaner to a floor-mounted industrial ultrasonic cleaning machine, so you can select any size you need. Our most popular models for cleaning Motorola Xoom Tablet circuit boards are the ¾ gallon Elma EH075EL and 1½ gallon Elma EH150EL. You should select an ultrasonic PCB cleaner equipped with a frequency sweep function, such as an Elma model, to prevent damage to sensitive components during cleaning. Choose a model also equipped with a heater to improve the ultrasonic cleaning process.

Whatever the model and size of ultrasonic circuit board cleaner you use there are steps to take before cleaning begins.

  1. Fill the ultrasonic cleaner tank to the fill line (or approximately 2/3 full) with ultrasonic cleaning solution such as Elma tec clean A1 diluted 1:20 with water.
  2. Turn on the ultrasonic cleaner, set the heater to approximately 50?C, and operate for about 30 minutes to drive off cavitation inhibiting entrained air. Degassing is complete when bubbles stop coming to the surface and must be performed every time the tank is filled with fresh circuit board cleaning solution.

How to Disassemble, Clean and Reassemble your Motorola Xoom Tablet

Step 1: Disassembling your Motorola Xoom Tablet

First, remove the two screws located at the bottom of the unit near the charge and data sync ports. Once this is done, you may now remove the plastic cover over the ports. Turn your Motorola Xoom tablet around and slide the bottom portion of the back cover down. The back cover uses slides with small clips to hold on to the unit. To fully remove it, simply use a small screwdriver or any similar object to push the clips and completely remove the back cover.

Remove the top portion of the back cover, which is held by two screws. A small connector for the power button also needs to be removed. Use a plastic opening tool to slide the ribbon off the connector. This will now separate the back cover.

There are 13 T6 screws and two T5 screws holding the battery. Remove these screws with the respective screwdrivers and loosen the battery. You will also need to disconnect the small cable connecting the battery to your Motorola Xoom circuit board. Use your plastic case opener tool to carefully remove the two small speakers.

In order to take out the camera, you will have to remove the small plastic frame it is sitting in. Once this is removed, you may now remove the ribbon cable using the plastic opening tool and simply pull the camera out. Disconnect the two connectors at the bottom of the unit and one at either side located on top.

You will now have to remove the 10 screws holding the circuit board to the unit. There are two gold screws which have special brackets located at the top of the device. Unscrew these screws and you may now carefully remove your circuit board.

You now hold in your hand, your Motorola Xoom Tablet circuit board.

Congratulations! You have successfully removed your circuit board from your Motorola Xoom Tablet! You may now proceed with the next step.

Step 2: Cleaning the Printed Circuit Board

Set the PCB ultrasonic cleaner’s thermostat to 50°C and activate the Sweep mode. While the solution is heating, place your PCB in the basket. If you are cleaning more than one at a time take care that they do not touch each other. Once the operating temperature is reached lower the basket into the cleaning solution and set the timer for 10 minutes. Cleaning time depends on the condition of the PCBs and may have to be adjusted.

At the end of the cycle remove the components from the bath. If they are not clean replace them in the bath until the cleaning is complete. Then rinse them in distilled or deionized water to remove all traces of the cleaning solution and avoid water spotting. Dry them with an air blower or warm air dryer.

Safety note: DO NOT reach into an operating ultrasonic bath. Instead remove the basket if you want to inspect or rearrange the parts.

Step 3: Reassembling your Motorola Xoom Tablet

Place the circuit board in its original compartment. Return the two gold screws with brackets at the top. Put back and tighten the 10 screws holding the circuit board to the unit.

Reconnect the two connectors found at the bottom of the unit. Don’t forget the ones on both sides located in the upper part of the device. Return your Motorola Xoom tablet’s camera by inserting the camera ribbon cable back into the connector and locking it in place, still using your plastic opening tool. Reattach the small plastic frame so that the camera fits in nice and snug with the rest of the components.

Return the two small speakers. Place the battery back to its original position. Connect the small cable connecting the battery to your Motorola Xoom circuit board. Reattach the 13 T6 screws and the two T5 screws to hold the battery in place.

Using your plastic opening tool, loosen the connector and slide the power button ribbon cable into it. Lock the cable in place by using your opening tool. Return the top portion of the back cover by putting back the two screws holding it in place.

Slide the back cover into its original location. Make sure it does not budge. You may now return the plastic cover protecting the charge and data sync ports. Tighten the two screws to lock it in place.

Admire the piece of work you just put back together.

Voila! Start your device and your Motorola Xoom Tablet should be good to go.

More Operating Tips

Any contaminants that rise to the surface of the bath should be skimmed off and disposed of properly. When the circuit board cleaning solution becomes discolored or cleaning takes longer it is time to replace it. Drain the tank and dispose of the spent solution according to local regulations. Take the time to remove any material that settled to the bottom of the tank. Clean the tank using a cleaning process recommended by the manufacturer.

Questions: Contact the iUltrasonic ultrasonic cleaning experts to pick an ultrasonic cleaner for sale at 973 821-4400

Disclaimer: This advice is not provided by a licensed technician. Follow at your own risk. We assume no liability for any damages caused by following the advice in this article.


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