Hi fellow MDers!! To enter the service mode on a European DH10P you'll need a LCD remote because nothing's visible on the units screen. 1. Press the play key to turn it on, 2. Slide the hold on, 3. Press & hold the volume- (down) button, then do the forward, forward, back, back etc key presses. When you're in the service mode the CHG & OPR lights flash on the unit. You can then either use the remote or the main unit buttons to change the 113 settings. If you've done it correctly you now have EQ custom 1&2 & full volume.....Be as deaf as you want....Your choice!! Best of Luck The Potleyman