Theres a protruding plastic that pushes the close detection switch inside, the switch might have gotten dirty or reshaped, you can remedy this by adding height to the protruding plastic, or have someone disassemble the unit for you. It can easily be remedied by a technician...
Boss DR880 back light comes on but no programs show. Have changed to a new power supply but no...
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Boss DR880 back light comes on but no programs show. Have changed to a new power supply but no change