Digital Dynamics LIONEL TRAINmaster LCRU Manuel d'instructions d'installation - Page 5

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4. Locate the circuit board over any free horizontal chassis surface. Orient the board so that

its wires are closest to the motor.

foam tape to the chassis.

5. Inspect the underside of the circuit board to be sure that there are no parts of the circuit

in contact with the metal chassis.

Method B

The LCRU has provisions for conventional mechanical fastening to an engine chassis. In some

cases, it may be possible to take advantage of existing chassis features to firmly mount the

LCRU. Generally, a Lionel stamped sheet metal chassis has an E-unit bracket that consists of a

tab bent up from the chassis. Engines such as the FM Trainmaster, EP-5, GP-7/9, and others have

this feature.

1. Place the LCRU board on its side, and align one of the three (3) holes on the bottom of the

heatsink with the slot in the E-unit bracket.

2. Place a strip of adhesive foam tape along the bottom edge of the LCRU board. The bottom

edge is opposite the side that has the four posts for making connections to the headlamps

and electrocouplers.

3. Referring to the photograph below, attach the heatsink to the bracket using the supplied #4

1/4" sheet metal screw. Be absolutely certain that the screw does not make contact with the

circuit board after it has been tightened against the E-unit bracket. Damage to circuit

boards shorted out in this manner will void the warranty.

Carefully press down on the circuit board to engage the

Figure 1

LCRU Installation Manual