Folks...Having only read about the not-so-highly-regarded, Singing Machine on this list, I finally got to have a crack at one & fixed it. Symptom-One Mic Not Working Solution - Defective Dual Op Amp, #4558D, crossed to NTE778a, Replaced. Clint Vanorsdell, DBA Video Van, 90 Rockland St., Hanover, MA 02339 ------------------------------------------ Submit A Repair Tip For Everyone Here: http://www.tech-assist.org/secure/tip/main.html ------------------------------------------ To REMOVE your email address, click here: http://www.tech-assist.org/unsubb.html To CHANGE your email address, click here: http://www.techassist.net/forms/change.html