When we buy new device such as Grundig DR 3400 DD we often through away most of the documentation but the warranty.
Very often issues with Grundig DR 3400 DD begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in Home Theater System Grundig DR 3400 DD is responsible for and what options to choose for expected result.
Fortunately you can find all manuals for Home Theater System on our side using links below.