Flowers for some John and H. Dziardziel !!!

After 24 hours without back-up battery's and not connected to the 4,5 V
trafo (the reset theory John S. mentioned).

I put back the 2 back-up battery's, connected the 4,5 V trafo and ...
oh wonder, the display gave a clear view. The commands via the push
buttons were follwed and I could listen to my favorite far-away
shortwave broadcasting. Also FM senders are working. However, not all
the functions like scanning are working, sometimes it is fading away
and display disapears. Some minutes later it comes back. Now it is
working longer time.

So I think time comes to open the radio and clean inside as H.D
suggests.

Does anybody know a www-site where I can find drawings of te inside ? I
have bad experience with Sony as it goes about supply information about
parts numbers and drawings.