Krell Industries CIPHER Owner Reference Manual page 17

(SECTION THREE: Anatomy of the CIPHER continued)
Display
19 Front Panel Display
Shows disc type and format, and the current status of the CIPHER. See page
27 for more details.
20 Dim Button or Key
This reduces the brightness of the front panel display.
21 Display Button or Key
This cycles the display between three choices: remaining track time, elapsed
disc time, and remaining disc time.
The following front panel buttons are not operational:
setup and disc.
17