Start with a google search for your VCR model (Lets call it "m0del" and maybe "power"
Something like "m0del power" and see if anyone else has had the issue.
You could maybe find some dedicated forum for av equipment (www.avforums.com springs to mind) and post there, with your model number.
These MAY help but there are a lot of Emerson VCR models to choose from.
http://intrepid-video.com/database/emerson.htm
http://www.democraticunderground.com/discuss/duboard.php?az=view_all&address=105x2876452
XXX, January 2017