This installation is for the HO-Scale Athearn Genesis GP35. It uses a TCS T1 decoder and was performed by Thomas Gosser


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

http://www.techni-tool.com

Athearn_GP35

TCS T1 Decoder will be installed in this engine.

Place loco on its top or side to access coupler boxes.

Remove coupler boxes using small phillips screwdriver. Turn loco right side up.

Gently slip loco shell straight up and off of chassis. Watch for wires attached to shell.

Remove jumper plug from harness attached to circuit board.

Athearn_GP35

Plug T1 decoder into harness. Tape down if needed.

Athearb GP35

Replace loco shell gently.

Place loco on test track try out installation.

If everything works you may now reinstall the couplers/boxes.


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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