Just received 3 new naro servos for my TM400 build. The package had four manufacturers names in the corner-JR, Futaba, Sanwa and Multiplex of which JR was marked. I quickly noticed that the wires are different colors than my park servos and the plug is also different. Is this the difference between "F" and "J" type servos? Can I use the J type on extensions and rx's even though the F type has a small notch at the bottom? Also if they are interchangable, which wire colors match up? The j type wires are brown, red and orange. The f type are black, red, and white. Whats my options here if any?
Thanks Rick

Rick:
Black, brown are batt. negative. Red is batt. positive and white, orange are signal wire. Can't hurt anything if you plug them in backwards, just won't work. Plug them in with the same colour match direction as your regular servos. I use the same servos in a TM 400. Great trouble free servos and great flying plane. Beefed the plane up a bit as I put it through the mill. I braced up the landing gear as it pulled out on the first landing. If you can find a picture on the net of the real one, you will see that there are two more struts on the front of the undercarriage. I added those two and had no problems since.

Thanks Gord,
To make sure I got it right, the brown wire matches up with black, the reds are in the middle and orange lines up with white. Sounds simple enough. My TM build has been a slow process due to lack of free time and waiting for the cash to buy the electronic gear. I already did the landing gear mod. Copied it from a TM400 build thread. Probably the same one you saw the picture. How did you route your rx antenna through the fuselage? Or did you do it before you glued the halves together? Any special exit point? Hope to be ready for the maiden next weekend.
Thanks again, Rick

This is the antenna I use on many rcvrs .http://www.uoguelph.ca/~antoon/gadgets/gadgets.htm On the right column you will see an antenna a short ways down. Only 12 in. long Taped to the side of the fuse. can hardly see it. The first four ins. just goes across the wing saddle. Never had a glitch.