Grundig RPC 2500-2 Digital Radio Malfunction -Repair manual

[Tolis]

Hello from Greece.
I need all the help i can get.
I have an Grundig RPC 2500 which worked great all those years.
Suddenly the radio stopped to function and i hear nothing but a FFFZZZZ and no stations all over the scale, either in FM or LW or MW.
When i press up-down search goes 0.05 MHz (up-down) and everything "locks" down. javascript:emoticon('')
Cassette and Turntable works great.
Its a great looking compact stereo. Please if anyone can help me or have the service manual contact at my email: [email protected] or post the answer to the Forum.
Thanks in advance
All the best from Greece,
Tolis