Dansette record player RG 31 ( Non Working)

A red and cream Dansette record player with radio, BSR monarch 4 speed turntable in working order, goes round at correct speed 16/33/45/78 . The main problem is no sound output from the amplifier section, needs a repair by a engineer. Model RG 31 was made in the 1960s in England. A nice item I hope some one can restore it to its glory days !!