Tactile Switch Upgrade

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Tactile Switch Upgrade

Postby SkyNorth » 18 Jan 2013, 05:28

Hi,
This switch can be soldered onto the circuit board pads , and provides a real nice responsive click feel.
It Greatly reduces the key travel distance , and should also solve the sticking button problem.
The only draw back is that they are $1.20US ea. and you would need 14 to do all the switches...

The part is made by Omron - #B3U-1000P
Digikey # SW1020CT-ND
B3U-1000P_sml.jpg
B3U-1000P_sml.jpg (10.29 KiB) Viewed 8402 times


-Brent
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Re: Tactile Switch Upgrade

Postby rob.thomson » 18 Jan 2013, 06:25

14?

I though the 9XR only had 6 switches?
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Re: Sv: Tactile Switch Upgrade

Postby Dvogonen » 18 Jan 2013, 06:27

You are forgetting the trim switches
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Re: Tactile Switch Upgrade

Postby mpjf01 » 18 Jan 2013, 09:23

Presumably there are 4 under the maltese cross? That would be enough for me.

I went to order 6, Element 14 want $12.95 for delivery. From Sydney to Adelaide in an envelope cost maybe $1.
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Re: Tactile Switch Upgrade

Postby ShowMaster » 18 Jan 2013, 10:15

Sky came through like he mentioned he would!
14 counting trims I count.
Flaky trims may be a worse issue and may need to be done first?
SM
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Re: Tactile Switch Upgrade

Postby SkyNorth » 18 Jan 2013, 23:04

The switches under the cross may need to even lower... I'm finding that the cross can be pushed in the center and it activates more than
one switch at a time ...this sometimes resets the AVR.!!!
I
-Brent
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Re: Tactile Switch Upgrade

Postby rob.thomson » 19 Jan 2013, 02:15

In have ordered some from Farnell.

Brent... Have you done the mod yourself?
Based on your last comment I suspect yes.

Guess we may need some spacer washers to raise the pcb?
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Re: Tactile Switch Upgrade

Postby ShowMaster » 19 Jan 2013, 07:36

Maybe add a "bump" or small post under the cross center to the switch can only be rocked?
SM
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Re: Tactile Switch Upgrade

Postby SkyNorth » 20 Jan 2013, 00:01

Yes, I have done the mod.
I need to look at adding a support in the center of the cross as SM suggests ,so that the cross "rocks" around the center.
Or maybe trim down the plastic tabs on the bottom of the cross a bit...or both.

-Brent
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Re: Tactile Switch Upgrade

Postby ShowMaster » 20 Jan 2013, 05:09

I flew my 9xr today, stock hardware, latest er9x, Frsky DJT.
Went well but I do agree the trims are spongy feeling after years of snap action trims.
Great reason for auto trim on first flights, after that usable I guess. Switch upgrade would be nice!
I then switched radios to my sky Ver C board and 9x and felt the difference!
But that's to be expected.
SM
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Re: Tactile Switch Upgrade

Postby SkyNorth » 21 Jan 2013, 19:57

I put in a spacer under the "bump" that the cross pivots on , to stop it from being able to be pushed down.

The cross switches now work fine.

-Brent
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Re: Tactile Switch Upgrade

Postby jonlowe » 21 Jan 2013, 21:40

SkyNorth wrote:Hi,
This switch can be soldered onto the circuit board pads , and provides a real nice responsive click feel.
It Greatly reduces the key travel distance , and should also solve the sticking button problem.
The only draw back is that they are $1.20US ea. and you would need 14 to do all the switches...

The part is made by Omron - #B3U-1000P
Digikey # SW1020CT-ND
B3U-1000P_sml.jpg


-Brent


Do you have any pictures of the mod? What did you have to do to the PCB to prep for installation of the switches?

Jon
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Re: Tactile Switch Upgrade

Postby Dvogonen » 23 Jan 2013, 08:05

I got tired of the less than perfect rubber buttons and installed micro switches under them. The inspiration was this thread.
I got a slightly different kind, a 4x4x1.5 mm switch. They were right on the verge of being to large, but I managed to solder 2 out of the four tabs. That should hold them. The super low profile was perfect and the end result was very satisfying.
The cost from ebay was $3.50 for 100 switches. That included postage to Sweden.
The following video shows how to make the upgrade and tells you which micro buttons I used:
http://youtu.be/fYHOy7m_J7I
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Re: Tactile Switch Upgrade

Postby rob.thomson » 23 Jan 2013, 16:47

Agreed. Done the same in mine.

HK if you are listening this is an essential upgrade. The radio become usable!

I was getting really frustrated by constantly screwing up mixes with the left right button being picked up on a down click!
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Re: Tactile Switch Upgrade

Postby Charliechan » 15 Feb 2013, 02:09

I followed the lead and ordered from Digikey, switches installed and what a difference. Good mod and thanks to the forum for making it known. :D
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Re: Tactile Switch Upgrade

Postby jozo.hornak » 27 Feb 2013, 03:54

Hi everybody, my question is: is it realy true, that trim switches are same - rubbered as tactical switches? if i want to use 9XR withou trabbles in cold, do i have to chcange them, too? thank you very much.
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Re: Tactile Switch Upgrade

Postby Xtrem » 01 Apr 2013, 08:13

Hi,

After installing the micro switches the radio started doing random reboots when I press the keys.
Any suggestions?
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Re: Tactile Switch Upgrade

Postby SkyNorth » 02 Apr 2013, 04:33

You need to put a small spacer under the center of the "Cross"
This stops it from being able to push down on more than one switch at a time.

-Brent
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Re: Tactile Switch Upgrade

Postby Xtrem » 03 Apr 2013, 05:34

Hi,

I have already do that with no results.

sometimes press 100 or more times for that to happen reboot,s . Sometimes carry two or three and it happens .... Already left the radio on 24 hours without moving anything and nothing happens.

I dont know what should i do to solve this problem. I have no trust anymore in this radio
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Re: Tactile Switch Upgrade

Postby Xtrem » 06 Apr 2013, 18:23

Solved with 4 1K resistors in serial with button lines.

Didn´t find any other way.
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Re: Tactile Switch Upgrade

Postby alarcer » 28 Apr 2013, 21:37

How thick of a spacer and exactly where do you put it under the Dpad (cross)?
Thank You!
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Re: Tactile Switch Upgrade

Postby Tarjenk » 03 May 2013, 04:04

alarcer wrote:How thick of a spacer and exactly where do you put it under the Dpad (cross)?
Thank You!


I cut the head of a nylon screw and made it slightly more flat with a plier (approx 1,5mm thick when finished). I put this between the pcb and silicone pad. This worked great for me. :D
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Re: Tactile Switch Upgrade

Postby alarcer » 04 May 2013, 22:16

Thank you. I will give that a try.


Tarjenk wrote:
alarcer wrote:How thick of a spacer and exactly where do you put it under the Dpad (cross)?
Thank You!


I cut the head of a nylon screw and made it slightly more flat with a plier (approx 1,5mm thick when finished). I put this between the pcb and silicone pad. This worked great for me. :D
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Re: Tactile Switch Upgrade

Postby alarcer » 05 May 2013, 06:41

I cut the head off of a 3mm nylon bolt and that worked perfect. Thank you!
Now I am having the reboot problem when using the Dpad(cross) that Xtrem had. Has any body found a solution other than adding resistors? I am about tired of messing with this thing.


Tarjenk wrote:
alarcer wrote:How thick of a spacer and exactly where do you put it under the Dpad (cross)?
Thank You!


I cut the head of a nylon screw and made it slightly more flat with a plier (approx 1,5mm thick when finished). I put this between the pcb and silicone pad. This worked great for me. :D
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Re: Tactile Switch Upgrade

Postby tedbmoss » 25 May 2013, 08:31

The original (debouncing) r/c network is still on the 9XR but it does not work without at least 470 ohms in series with it and the 4 switches, I did not see any reason why one could not replace the existing SMD resistors with ones of higher value in order to keep it neat. I think the original resistors are 200 ohms. (Has the software changed?) The nylon screw piece works well as a center support.
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