Introduction
If you need to access the internal components of your Sony BDP-BX320 Blu-ray player, follow this guide to remove the top case.
Tools
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            Power off and unplug the device from any power source. 
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            Place the Blue-ray player on a clean, stable surface. 
 
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            Use a Phillips #1 screwdriver to remove the three 8.3 mm screws on the back of the device. 
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            Slide the back section of the top case off the device. 
 
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            Use your hands or a metal spudger to gently disconnect the case from the small tabs on the bottom and sides of the device. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.