#Otari mx 80 24 track analog tape recorder. Well kept machine I purchased in 1994. I have lost the play function. Machine works in fast forward or reverse; the roller puck engages the Capstan when you hit the play button and the head shield automatically rises; Capstan can be turned by hand and appears normal; the Capstan board light stays red when you push play; the reel control board does a green light in rewind but stays red when fast forwarding; and all board caps and connections appear as new. Please advise.