The channel display at the front stays black when switching on the device. Where is the failure?
This could have two reasons: 1. The primary fuse is blown, replace it with a substitute of the same type only. The fuse can be found in the rectangular fuse box above the power cord connector. 2. Internal fuses are blown. Remove the power cord, open the device and replace the blown fuses with substitutes of the same type only (see manual Technical Documentation). Always remove the fuses from the holder before checking them!
