(1) Loosen four screws and remove powerbox
(2) Set multimeter select switch to volts DC.
(3) Connect positive (+) multimeter lead to
wire 1785 at circuit breaker CB27.
(4) Connect negative () multimeter lead to
a known good ground.
(a) If 10 to 14 vdc are not present,
repair wire 1785 (see schematic
Fig 2-75) or notify DS Maintenance.
(b) If there are 10 to 14 vdc present,
wire 1785 is OK.
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical circuits, a
direct short may result. Damage to equipment, injury or death to personnel may occur.