Display of status and incrementation of the digital sound processor

The display shows whether a digital sound processor (DSP) is installed. DSP = 0, DSP not installed (stereo system, hi-fi system) DSP = 1, DSP is installed (Top HiFi system). The display shows the current volume setting. The display varies within a range extending between 0 and 63.

• Stereo system: Volume from 0 to 48
• HiFi system: Volume from 0 to 56
• Top HiFi system: Volume from 0 to 63