http://www.rcgroups.com/forums/showpost.php?p=12512882&postcount=62

http://www.rcgroups.com/forums/showpost.php?p=11514521&postcount=165

You may try this also as few in rcgroups have suggested that the white jumper as indicated below in photo is meant for changing mode of the tx. Changing jumper position along with ratchet and spring may change the mode.

IT IS DONE! Changing the ratchet and spring is real easy. Thank you so much sunderamvelar Changing the jumper worked.
For mode 1 jumper should me on top two pins and for mode two jmper should be on bottom two pins. Simple and easy

Anwar ji the main board for 4ch and 6ch are not the same as i said earlier.
Thanks a lot for your help.

A word of caution to anyone who wants to fiddle inside a cheap radio. The plastic is of poor quality so HANDLE WITH CARE!

wow.. so much discussion about wires and soldering and in the end a jumper did the trick.. nice

The earlier steps were generic, and the jumper trick is specific to this brand/model.  I guess they are compensating for not allowing change of modes via software

sweet... welcome to mode 2 world

I had learnt the lesson the hard way when I did mode change for my Futaba 7C. I had to first interchange the pots, trim switches, ratchet and springs for mode change. This involved lot of difficulties of centering of the pots at zero trim and sub trim. However after it was done it was working perfectly.

Only after few months I came to realise that the change of mode, was possible through sub menu of the settings.   Then I had to revert back everything again with all the difficulties of centering of pots, now with only interchange of springs and ratchet and mode change through settings it was working perfectly. Therefore I specifically searched for simpler solution.

Glad could be of some help.   

That is the first thing I also looked for, "software support for mode change". 

This one turned to be a hardware hack though !

Thanks vikas
My radio hasnt heard of anything called "software" Finally a tiny jumper saved the day. But now the ailerons and rudder are interchanged. Shouldn be a problem though.

Quote from: rajathv8 on November 23, 2010, 10:55:18 AM
But now the ailerons and rudder are interchanged. Shouldn be a problem though.

That is strange. With jumper change is aileron and rudder are also shifting?.

If aileron and Rudder also interchanging, then it is not mode 2 but mode 3 or 4. please clarify on the qoute.

Would it be just wrong wiring of channels on the receiver end ?

Isn't that expected behavior...

In mode 1 rudder and elevator are on left while throttle & aileron are or right...
Mode 2 rudder and throttle on left while elevator & aileron of right

what behavior you see with your radio??


Here is how it should look in mode 1 vs mode 2




Source: http://www.spektrumrc.com/Articles/Article.aspx?ArticleID=2105

I have now:
1. Throttle and aileron on left stick
2. Rudder and elevator on right stick

I can solve this by just interchanging the aileron and rudder servo while connecting on the rx right?

yup... but this isn't really mode 2 funny HK

Yeah imagine if a guy buys mode two and gets this instead. Strange.
I removed the AA battery connectors to make space for lipo. One question : Should i always disconnect the lipo after use or leave it connected?  I use the tx once every two days on sim.

See how the on/off switch work... does it break the circuit or just control the flow of current using some funky electronics.. I think it should directly be in between electronics & battery if that is the case then you may leave it plugged. Lipo means little extra safety so you might want to take it out as well..

Ok. Will do

Quote from: rajathv8 on November 23, 2010, 12:03:44 PM
I have now:
aileron on left stick..Rudder and elevator on right stick..solve this by just interchanging the aileron and rudder servo while connecting on the rx right?

Very strange

it is Ok as long as no mixing is used.

However in this case it is better to go in for the interchanging of the connectors of throttle and aileron instead of jumper change.

Quote from: rajathv8 on November 23, 2010, 12:03:44 PM
I can solve this by just interchanging the aileron and rudder servo while connecting on the rx right?

Before doing this, can you list out how (which channels) you have connected ALL the various servos and ESC on your receiver currently ?

Plus 1 to reply by Mr Anwar

Rx side it should be

Channel 1 - Aileron
Channel 2 - elevator
Channel 3 - Throttle
Channel 4 - Rudder

Ok wrong call. It is fine now.

Right : Ailerons and elevator
Left : Throttle and rudder

The aileron reverse switch isnt working. Had this prob when i recieved the radio itself.

 
Good luck and happy flying.

Thankyou

Have a doubt. My radio has a trainer port but no trainer switch. In futaba i believe the master uses this switch to take control of the model. How does the trainer thing work in this HK radio?

It does not have a PPM in I am sure it can be used as a master Tx coupled with trainer Tx.

Any idea why the +5 V is there?