Atlas FP7

Scale:
HO Scale


This installation uses the following decoder:

A6X



This installation of TCS A6X digital decoder is for HO-Scale Atlas FP7 and was performed by Ronald Burns of Austintown, Ohio.

Start with drive unit forward end to your left.
Start with drive unit forward end to your left.
Un-solder all wires.
Un-solder all wires.
On the plastic shelf, at the rear of unit, cut out center lip. Do not cut off both ends of the plastic lip. This will act as a guide for the decoder.
On the plastic shelf, at the rear of unit, cut out center lip. Do not cut off both ends of the plastic lip. This will act as a guide for the decoder.
Use Silicone type sealant, two sided tape or roll clear tape to mount decoder. With hot solder iron, apply solder to each pad that you will use. Applying solder first, will make wire soldering easier.
Use Silicone type sealant, two sided tape or roll clear tape to mount decoder. With hot solder iron, apply solder to each pad that you will use. Applying solder first, will make wire soldering easier.
Follow decoder instructions and solder all 4 track lead wires. Then solder a wire from the motor lead that is away from you to the decoder motor lead on your right.
Follow decoder instructions and solder all 4 track lead wires. Then solder a wire from the motor lead that is away from you to the decoder motor lead on your right.
Then finish soldering the last motor lead from the unit to the decoder.
Then finish soldering the last motor lead from the unit to the decoder.

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