Grass Valley Apex v.2.0 - Manual (Page 115)

APEX — Installation and Service Manual 117
LEDs
§ If DS27 and DS28 are both illuminated, the Master Clock input is
missing.
Table 12. IN-34075 / IN-34110 Input Boards
Ref Display Meaning
MADI DS1 Green MADI input detected and in use (AES inputs ignored)
Off AES inputs in use
MATRIX A
IN USE DS2 Green Using Matrix board A
Off Not using Matrix board A
OK DS3 Green Link from Matrix board A OK
Off Link bad or not present
MATRIX B
IN USE DS4 Green Using Matrix board B
Off Not using Matrix board B
OK DS5 Green Link from Matrix board B OK
Off Link bad or not present
READY DS6 Green Board is running and configured
Off Board not running
ALARM DS7 Red Power supply is bad
Off No error