Opweb.de is not a professional service, it is a hobby of mine. To collect old books and to share them with others. I hope this website can help you to bring your old equipment back to live. I have many service manuals and schematics that can assist you to repair and maintenance. You can find user manuals here of course.
This site is an ongoing project, most likely it will never be finished, but it's a good start. Because each unit that is repaired and does not end up in the trash is worth the effort. And with your help Opweb.de gets better every day. Do you have any manuals or images from your device, please upload it here and share it with others.