If POWER CKT BKR (4) trips again, set MAIN PWR (1) to OFF and notify unit
INTACCENT-OFF (2): intercom and radio sound levels are equal
INTACCENT-ON (2): radio sound level is lower than intercom.
Connect CVC helmet (7) to C-2278/VRC intercom control set (8) as shown in illustration below.
Set MONITOR switch (9) to ALL.
Set three position switch (10) to desired position (see illustration below).
Adjust VOLUME control knob (11) as necessary.