Intermountain F7B

Scale:
N Scale


This installation uses the following decoder:


This installation is for the N Scale Intermountain F7B and uses the TCS IMF4-NF Decoder. It was performed by TCS.

Be careful as you take off the shell because it is difficult to remove and can be broken easily.
Be careful as you take off the shell because it is difficult to remove and can be broken easily.


Here is a picture of the chassis with its shell removed where you can see the original Intermountain light board.

Desolder both wires (red and black) from the original lighting board.
Here is a picture of the chassis with its shell removed where you can see the original Intermountain light board. Desolder both wires (red and black) from the original lighting board.


Next, unscrew the two screws holding the lighting board in place and removed it from the chassis. 

Replace the lighting board with the IMF4-NF while taking care to make sure the motor wires come through the front two holes of the decoder. Screw the decoder in place, solder the motor connections to the second row of holes, and you are ready to run!
Next, unscrew the two screws holding the lighting board in place and removed it from the chassis. Replace the lighting board with the IMF4-NF while taking care to make sure the motor wires come through the front two holes of the decoder. Screw the decoder in place, solder the motor connections to the second row of holes, and you are ready to run!





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

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