replacing the 3rd channel switch on the TQ3

[country-clod-89]

alright this is very simple, this is step by step and the parts you need.

parts needed:

3 position switch of your choice

2 capacitors of any value (im using 0.1 caps)

good quality low resistance solder


follow these steps:

1 take the crystal out of your transmitter

2 unscrew all the screws on back of your TQ3 (except the flathead screw, thats your third channel adjustment screw)

3 take the back cover off of the transmitter

4 unscrew the antenna (you dont have to it just give you a little more room)

5 take out the 2 screws holding the third channel switch in.

6 unsolder the switch write down sequence of wires do not forget to do this!! I found out the hard way ( sequence on mine was black, gray, white)

7 take your third channel switch and solder on 2 capacitors from center tab to outer and center tab to the other outer tab

8 solder the switch wires onto the third channel switch in the same sequence you took them off the old one.

9 mount the switch anywhere you like, pic below will show how i did mine.

10 replce antenna

11 replce the back cover of the transmitter, tighten screws

12 put the crystal back in

13 test the trasmitter

14 if all goes well its time to go have fun!

[country-clod-89]

here another of the inside

[SPEED RACER]

just curious,you said caps,do you mean resisters?i've done this to my airtronics using resisters that worked good

[country-clod-89]

nope I used capacitors, they work fine

[antony_aiken]

do you think it would be possible to use a dimmer switch and have fully proportional 3-channel 4x4x4??

[country-clod-89]

I dont see why not, I thought about taking the parts out of an old radio and using the parts from the steering.

[SPEED RACER]

the problem that you'll run into with other radio gear is that theknob is mechanically centered,so it'll be large to use.the potential switch is actually small but does not center itself

[fastfred]

What's the purpose of the resistors/capacitators?

m

[country-clod-89]

they clear up the signals and help the servo return to center.

[Cubman]

On the 3 position toggle switches I have seen, there are two rows of three tabs each. Does it matter which ones I use? If not, could I put the capacitors on one row and the wires on the other?

[SPEED RACER]

on the switchs you described ,the one's i've seen you can't do that.one side is seperate from the other.but you need to read the specs or test for contenuity of the 2 terminals going you already have it

[charliechristmas58]

why couldnt i take the controler that doesnt have the toggle switch and use a 3 position rocker switch so i wont have that big hole in the side .

[charliechristmas58]

Never mind. it wont work.

[SFC K]

Never mind. it wont work.

Your what won't work?????

[charliechristmas58]

use a 2 channel transmitter front cover. but i did the switch. it works but i dont like the hole it left