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

Important Soldering Tip:
Please do not use any flux either liquid or paste on the mother board. It will damage it. Use only Rosin core solder approved for electronics use.
We recommend to use only Kester "44" rosin core, SN63PB37, .015" diameter, part number 24-6337-0007.
This can be ordered from Techni-Tool under Techni-Tool part number 488SO157

Start with drive unit forward end to your left.


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.



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.



Then finish soldering the last motor lead from the unit to the decoder.

Other solder tips: When stripping wire, only strip a tiny little bit of the insulation. Strip no more then a 1/64 of an inch. When the wire gets tinned with solder the insulation will shrink back more. Try to not expose any more wire then 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

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