Jr propo x3810 radio transmitter manual?

[Neddy]

I was given a Jr Propo x3810 transmitter which has a 2.4g conversion kit fitted. I can't seem to find a manual on line for this transmitter. Has anyone got a pdf manual on file or similar they could send me. I will forward my email address if needed. Thanks 

[GaryW]

Here u go... the x3810 & 8103 are the same radio

 

xp8103.pdf

Edited April 6 by GaryW

[Neddy]

Wow thank you very much for sending that much appreciated cheers Ned

[John Lee]

Note the information on page 18 about the lithium memory battery. Given the age of the radio it is likely to need replacing, unless already done in the last couple of years. As you are likely to lose all the model memories when it is replaced it may be worth your while doing this before you otherwise start using the set.

 

Despite the warnings in the manual I found it straightforward to replace the battery and by acting quickly I was able to preserve the volatile memory. I'd recommend that you buy a tagged battery (CR2032) or alternatively a tagged battery holder for the job. An online search ('replace lithium memory battery on JR radio') will give you more guidance. It was a hot topic in its day, 10-15 years ago.

[Neddy]

It has a lithium 1500mah 9.9 v life battery.It is a very tight fit because of Leeds obut it goes in with some juggling. At present a bit confused about how to change models of planes. It was used on  nine different planes. I have two of them I want to use but can't figure how to change to them. There's probably a seperate switch or knob to change it has a lot of them?

 

https://hobbyking.com/en_us/hobbyking-1500mah-life-3s-9-9v-transmitter-pack-1.html?___store=en_us

[Peter Jenkins]

Neddy, you need to read the information on Page 18 as per John Lee's post.  The CR2032 lithium battery is a very slim battery that is used in clocks, remote switches etc and powers the memory when the main Tx battery is disconnected - that's the one you have linked to in your post above.  This link takes you to the CR2032 battery.  On my JR XG11 Tx, they must have changed to using NV RAM to hold the model memories as it does not need this back up battery to support the model memories.  

 

As John says, best to make the change before you start programming the model memories - just in case!

[Neddy]

Sorry I was thinking about the main battery. So now I have to find where this little 2032 battery is. It says if it is flat the will be an L on the model plane screen. I hope it's not showing it. I will change it eventually just hoping it's ok for now.

[Peter Jenkins]

So it would seem.  Perhaps John could tell you where it is as the manual doesn't identify its location.

[Neddy]

I have checked there is no L showing on model screen so it's okay at present. 

[John Lee]

10 hours ago, Neddy said:

 At present a bit confused about how to change models of planes. It was used on  nine different planes. I have two of them I want to use but can't figure how to change to them. There's probably a seperate switch or knob to change it has a lot of them?

 

 

5 hours ago, Peter Jenkins said:

So it would seem.  Perhaps John could tell you where it is as the manual doesn't identify its location.

 

It was about 20 years ago that I changed the battery so I'm afraid I can't recall exactly. But when you remove the back of the transmitter it can be found soldered on one of the PC Boards.

 

As to changing models Neddy I'd refer you to Section 3.4 on page 28 of the manual 'Model Select (System Set-Up Mode)'. 

 

The 3810 was a great set in its time, I had two of them. But it is 1990's technology and the programming is anything but intuitive, with seemingly random pressing of the 8 buttons, sometimes several at a time. Things have progressed enormously since then and you need to 'unlearn' what to expect from a set nowadays to get to grips with the operating system. Back then I carried the manual with the transmitter and often had to refer to it to remind myself how to do relatively simple tasks.

Edited April 8 by John Lee

[Neddy]

I guess it's old technology but not as old as my 1960s non computer education. I find it a challenge to decipher the instructions as to what to do first. A simple list of order one to whatever would be easier to follow.

[Neddy]

What to do first?

[Neddy]

It's been converted to 2.4ghz technology by using a FRSky converter.

[Peter Jenkins]

Hi Neddy

 

There are 2 parts to your Tx.  There is the computer part and there is the radio part.  You have replaced the radio part with the FrSky 2.4 GHz module but the computer part is pure JR and its functions are as described in the Tx handbook.  None of those changes apart from how the Failsafe operates I would think as that is dependant on the radio link.

 

Setting up the model memory is as per the manual you have.  The same will hold true of setting control throws, exponential and any mixes you want to use.

 

Hope that helps.

[John Lee]

9 hours ago, Neddy said:

What to do first?

 

 

It is what it is & I'm afraid wishing for a simple consecutive list of actions is just not going to happen. It's pre YouTube so I very much doubt you will get help there and you are pretty much stuck with the manual. You may want to search on the RCGroups, RCUniverse & Flying Giants forums where there were many discussions 20 years ago on how to do things. They are US forums so search using 'JR8103'

 

But to get you started from memory & the manual:

 

First thing is to switch on whilst holding both the up & down buttons:

 

 

 

Then pick the model you want

 

 

Then 'Select'

 

 

Then back out

 

Edited April 9 by John Lee

[Neddy]

Thank you it took me a while and i did manage to change and check the model numbers of 10 preloaded planes.  I think I will have to virtually go back and delete them reload and re pair the two planes I was hoping  were part of the ten preloaded ones.

[Peter Jenkins]

Skmetimes it saves a lot of time and effort to start with a clean memory.  That way, you will know what the model is mesnt to do!  It can be a ddvkl of a job trying to trouble shoot odd behaviour when it's skmeone else's setup that you dkn't really understand!

[Neddy]

Well I did manage to delete the names of the ten programmed planes. Then I did a pairing procedure  of the two planes I have here plus a spare received with an ESC  and servo fitted. I also changed the switch setting on the back of the flysky  unit. They all worked paired but the rudder and elevator settings on the planes were reversed I tried to reverse these but without success. Plus one of the planes wanted to run in reverse meaning with power turned off the propeller was spinning flat out. So now I don't know what to do?

[Peter Jenkins]

Hi Neddy

 

To avoid confusion it's always best to use the standard terminology.  For example:

 

a.  Pairing should be called Binding as that is how it is referred to in all manuals I've read since 2010.

 

b.  "Power turned off" can be confusing.  Is the Tx power turned off or is the throttle stick in the closed position?  I suspect you mean with the throttle stick in the closed position but I'm not 100% sure.  Turning the Tx off is the way we check that the Failsafe works correctly.  For an electric motor, you should set it so the motor either stops or has a very slow idle.

 

c.  Is the motor running in reverse or is the throttle function reversed?  I suspect the latter as you say it runs flat out with the power turned off - see my b.

 

d.  If the motor really is running in reverse i.e. the aircraft is being pushed backwards with power on, you need to disconnect the drive pack, and then remove 2 of the 3 wires going from the ESC to the motor and swap them over.  It doesn't matter which 2 you swap over.  Then reconnect the flight battery and check that the motor runs in the correct direction.  (The ESC turns the DC current of the battery into a 3 phase AC supply to the motor.  The switching on and off of the 3 phase supply provides the turning force for the motor so swapping 2 of the 3 leads over merely turns the direction of rotation of the 3 phase supply to the motor.)

 

When making any checks on an electric motor, always remove the propeller first as if the motor goes to full power you don't have a major problem!

 

I had a look at the manual that is posted and it seems to be missing the page with Reversing the Servo movement on it.  I found another manual here, which is not as easy to navigate but does have the relevant section on reversing a servo and I've posted the screen shot of it below.  If you follow that you should get a reversed servo direction.  If the throttle stick is working back to front then you need to reverse the throttle channel as well.

 

 

Hope that helps.

 

Peter

[Neddy]

One plane is operating with propeller acting normally running in the right direction, but the rudder and tail elevator are reversed! The other plane the on off switch on the 3810 is reversed, off is on. If I turn switch off the plane just about jumps off of the table propeller running flat out in right direction. But the rudder and tail elevator are reversed also. As for terminology binding or pairing some sites say pairing others say binding 

[Peter Jenkins]

OK, have you tried using the "Reverse" function that is described at para 4.3 in the manual?  As I don't have an XP8103 I cannot work through showing screen shots.

 

The screen shot I've sent seems to work as follows:

 

1.  Switch on the Tx

2.  Press the UP DOWN keys together to enter Function mode.

3.  From the list displayed, use the UP DOWN keys separately to access the Reverse function from the list. 

4.  Use one of the <ch ch> buttons to select the channel you want to reverse 

5.  Press one of the + - buttons to change the direction of travel

6.  Select the next channel to change using the <ch ch> buttons and reverse it using the + - buttons.

7  When done, press the UP DOWN keys together to exit Function mode.

8.  Take the prop off and then check the channels affected to make sure they work correctly. If you feel you cannot tell which way the motor is running then put the prop back on and restrain the aircraft while you try the Throttle switch.

[kenb]

Neddy. 

 You say  the plane nearly jumped off the table with the propeller flat out  . Please remember to take the prop off while testing Especially indoors. 

[Neddy]

I am outside using a garden table with a cord attached to the fuselage just in case.  Today I used a different transmitter and receiver on both planes. Both planes operated without a fault. Later using the 3810 with bound receivers I managed to get one of the planes to operate properly with rudder and elevator reversed. The other plane I managed to reverse the rudder and elevator. But when transmitter is turned off the propeller starts to spin vertually flat out. If I turn the transmitter on it still runs for about half a minute then stops. The throttle position is in the off position

[Dale Bradly]

It's your failsafe telling it to throttle up on loss of radio signal.

Set it properly and it won't do it.

 

[John Lee]

11 hours ago, Neddy said:

Well I did manage to delete the names of the ten programmed planes. 

 

Deleting the names will not delete all the other attributes in that model memory, so any reverse, expo, etc etc will still remain. You need to do a 'Data reset' as described in section 3.8.

 

It may help to appreciate that the transmitter has two separate, but interlinked, software menus. They are the 'Set up Mode' and the 'Function Mode'. They are described on pages 26 & 27 of the manual. To enter the 'Set up mode' you press & hold the Up & Down buttons before switching on the set, to enter the 'Function Mode' you press the Up & Down buttons simultaneously when the set is already switched on.

 

To reverse any servo or the throttle you need to be in the 'Function Mode' and then follow as Peter described.