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Lenovo Yoga Book X90F. Model number: Lenovo YB-J912F. This guide will help to replace the right and left speakers if there is no audio playback. The relevant troubleshooting section can be found using this link.
The speaker is responsible for audio volume and quality, so poor audio quality will require a speaker replacement.
Prior to starting the replacement, please turn the power off on the computer and disconnect any external power sources, such as the device charger.
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Turn off and power down the device before beginning this process. A heat gun or hair dryer will be suitable to heat the adhesive that holds down the screen. Apply heat to the entire surface area of the bottom screen.
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Once the adhesive has been heated up, take the iFixIt suction cup and lift in a corner. The screen should be separating from the adhesive here.
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While the screen is lifted, insert the ifixit opening pick to help pry off the screen.
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While the screen has been lifted, insert the plastic opening picks. Heat the adhesive and follow with the screen removal tool to ensure that you are not prying it apart with excessive force.
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After the screen has been opened, disconnect the ribbon connecting the bottom screen to the motherboard by gently pulling the ribbon with tweezers.
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If there are black coverings on the tabs as shown in the second image, carefully remove them using a pair of tweezers.
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Separate and remove the bottom screen from the device.
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Peel the yellowish covering off, using the flat end of the spudger to pry it up and the tweezers to pull it off gently.
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Use tweezers to unplug the intertwined black and red wires.
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Using the JIS #00 screwdriver, remove the three 8 mm screws that are holding the right speaker down.
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Using the tweezers, remove the right speaker from the device.
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Use tweezers to unplug the intertwined red and black wires.
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Using the JIS #00 screwdriver, remove the two 8 mm screws that are holding the left speaker down.
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Use the spudger to gently pry the left speaker up.
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Use the tweezers to pull the left speaker out.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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