Atlas GE Silver B23-7

Scale:
HO Scale


This installation uses the following decoder:

DP5



This installation of TCS DP5 Digital Decoder is for HO Scale Atlas Silver GE B23-7 and was performed by A.G.

The three pictures above show the beautiful Atlas Silver GE B23-7 with its shell on.
The three pictures above show the beautiful Atlas Silver GE B23-7 with its shell on.
Unscrew the front screw (circled in red) as well as the back one that holds the coupler pockets to the chassis and remove both coupler pockets.
Unscrew the front screw (circled in red) as well as the back one that holds the coupler pockets to the chassis and remove both coupler pockets.
Grasping the shell by the solid area between the grills, lift the shell straight up and off of the chassis.
Grasping the shell by the solid area between the grills, lift the shell straight up and off of the chassis.
Picture of the same board with the DCC plug removed. In the upper left corner of the DCC socket you can see a small triangle mark — that is the "pin # 1" indication (orange wire).
Picture of the same board with the DCC plug removed. In the upper left corner of the DCC socket you can see a small triangle mark — that is the "pin # 1" indication (orange wire).
Using the image above for reference install the DP5 decoder into the 8 Pin NMRA socket. Be sure to orient the pins so that pin 1 on the decoder enters the NMRA socket 1. Below is an alternate method of installation using an MC2P-SH.
Using the image above for reference install the DP5 decoder into the 8 Pin NMRA socket. Be sure to orient the pins so that pin 1 on the decoder enters the NMRA socket 1. Below is an alternate method of installation using an MC2P-SH.
Plug the MC2P-SH into the DCC socket so that the orange wire is lined up with the "first pin indicator."
Plug the MC2P-SH into the DCC socket so that the orange wire is lined up with the "first pin indicator."
Place some electrical tape over the decoder and stick it to the chassis so that it will not touch the moving part of the motor. Hold the shell in one hand and the chassis in your other hand. Lining up the front of both pieces, lower the shell onto the chassis, keeping the lower edge of the shell parallel with the chassis. Do not forget to attach both couplers.
Place some electrical tape over the decoder and stick it to the chassis so that it will not touch the moving part of the motor. Hold the shell in one hand and the chassis in your other hand. Lining up the front of both pieces, lower the shell onto the chassis, keeping the lower edge of the shell parallel with the chassis. Do not forget to attach both couplers.

Important Soldering Tip

Please do not use any flux either liquid or paste on the mother board. Over time, the acidic properties of liquid or paste flux will begin eating away at the fiberglass PCB and will damage it. Use only Rosin-core solder or no-clean flux approved for electronics use.

TCS recommends the use of Kester "44" Sn63 Pb37, .015" diameter Rosin-core solder. Kester part number 24-6337-0007.

You can order this solder from the following retailers:
Digikey - PN:KE1110-ND
Techni-Tool - PN:488SO6775

Other solder tips

When stripping wire, only strip a tiny little bit of the insulation. Strip no more than a 1/32 of an inch. When the wire gets tinned with solder, the insulation will shrink back more. Try to not expose any more wire than half the length of the solder pad at most. In no case should solder or exposed wire wire ever be outside the boundary of the the solder pad you are attaching a wire to.
Click here for important information on properly Stripping and Tinning wire