Hitachi ur18dsl RADIO , Repeater with pictures

Hello, I have a Hitachi radio. Problem: It only comes when switching on from the speakers , Welcome to Hitachi Power Tools , then you see the 88.0 MHZ stand on the display and it is all quiet, no sound nothing ! The headphone output also does not work . It can be pressed and operated all buttons , just no sound . Does anyone know from there ?? Tips ? The radio has inside 2 circuit boards , have each photographed from front and back . Many looks a experienced electric motor more than me Schmorr or Brandstellen are not to be found on the boards. Thanks in advance! With successful tips for reperatur, I send a box of beer by Paypal!!