Figure 1-2. Electronic control unit (ECU)

TM 5-6675-250-34

c. Electronic Control Unit (ECU). The ECU

equipment from excessive current. Test provisions

(figure 1-2) consists of a panel assembly mounted in

are provided by a meter and switches. The electronic

a carrying case. Controls and indicators extend

circuitry of the ECU is contained on a printed circuit

through an edge-lighted panel assembly. The panel

board secured to the underside of the panel

is marked to identif y controls, indicators, and switch

assembly. Removal of the panel from the case

positions. Receptacles are provided for connecting

provides access to the electronics and all internal

the equipment for operation. A fuse protects the

components of the unit.

Figure 1-2. Electronic control unit (ECU)