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Hi Don and welcome to JustAnswer,Thank you for the question and your patience. Should you still need assistance for information purposes only...Initially, bear with us; re-confirm and post back with the complete model number of the RCA.
For some reason, B271F680 is reported back as a non-valid RCA product. The model number would be something like 27F500TDV.
Still, have you tried to clean the laser lens of the DVD player using a disc for such purpose?