Atlas 447299 ユーザーズマニュアル

Atlas #544099 and #447399 DCC Decoders

Atlas Model Railroad Co., Inc.

internal safeguards to prevent damage, you must not allow any metal

part of the locomotive to touch surface components of the decoder other

than the pickup pads on the decoder that connect to the wheel-sets, the

headlights, and the motor brushes.

Any contact to other parts of the

decoder can cause a direct internal short circuit and destroy the

DCC decoder.

The Atlas #544099 and #447299 DCC decoders

are not completely

protected against static electricity and have sensitive electronic parts.

When installing one of these decoders in your N scale locomotive, it is

recommended that you wear a grounded anti-static wrist strap. Also be

careful in handling the decoder, especially in the area around the top

rear part of the decoder (the area where the microprocessor is located).

All Atlas #544099 and #447299 DCC decoders come with

two LED headlights already installed. The light outputs of

these decoders are designed only to drive these LED

headlights. The Atlas warranty is void if the LEDs are

removed from the decoder PC board.

Step by Step Installation

In the following steps, please refer to the instructions provided with your

Atlas locomotive.

1) Remove the locomotive's body shell. Use care so as not to

damage any of the fragile parts.

2) Loosen the two screws that hold the frame together; these screws

are located at the front and rear of the frame.

3) Carefully remove the lighting control circuit board, which is located

at the top of the frame.

4) Place the decoder between the two halves of the frame so that the

decoder label is at the top of the board and the two motor pads are

at the bottom of the decoder. These motor pads will connect with

the two copper motor contacts when the decoder installation has

been completed.

5) Carefully press the two frame halves together, with the sides of the

decoder inserted into the notches in the two halves of the frame.

Some pressure is needed to press the two frame halves together.

This pressure fit insures good electrical contact between the frame

and the decoder.

6) Tighten the two screws that hold the locomotive frame together.
7) Carefully check to make sure that the motor contacts are not

touching either half of the frame. It is necessary to look down from

the top through the frame cutouts in order to check for such