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Author Topic: How to use a momentary switch with a latching sound board.  (Read 27039 times)

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Offline eastern57

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How to use a momentary switch with a latching sound board.
« on: January 22, 2010, 02:14:29 PM »
This is primarily used with the MR/Hasbro Force FX sound boards.  This works with sound boards/drivers that have separate leads for a latching switch.  I have not tested it in a direct drive or resistored/buck puck set-up, and I do not recommend relying on this method to work in those situations.

This also has only been tested with this particular PCB.  I have not tested others.  But I know this technique works and it has been proven many many times.

Wiring the PCB to your force FX sound board.

- The main negative of the PCB (that entire gold-circle back) goes to the main negative on the sound board (call this the "back" of the PCB).
- Take the little metal connection plate off and attach your momentary switch leads to those connection points (call this the "front" of the PCB).
- The two spots where the LED was attached will connect to your sound board main switch connections [sw(+) & sw(-)].  Sw(+) goes to the pad on the "back" of the PCB and sw(-) to the pad on the "front" of the PCB.


Wide angle:




Close up:




Diagram:






Good Luck! ;)
 

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Offline Aradian Valentine

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Re: How to use a momentary switch with a latching sound board.
« Reply #1 on: January 22, 2010, 03:42:18 PM »
Awesome! thank you so much!

-AV
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Offline eastern57

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Re: How to use a momentary switch with a latching sound board.
« Reply #2 on: January 23, 2010, 07:13:47 AM »
No Problem, dude!  Good Luck!
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Offline Darksaber 3

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Re: How to use a momentary switch with a latching sound board.
« Reply #3 on: January 23, 2010, 01:48:11 PM »
I have a question? Do you think that perhaps that PCB could be hot glued directly onto the back of an MR board, for space reasons? Just so I could have it all wired up in a relativly small space? I have some internal space issues with my custom I've been working on, but I really want to get a yellow Anti-Vandal, which only comes in momentary, working with an MR board. Still, I don't know that I would have space for this, etc.
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Offline QUI-GON JINN

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Re: How to use a momentary switch with a latching sound board.
« Reply #4 on: January 23, 2010, 01:51:52 PM »
Quote from: Darksaber 3 on January 23, 2010, 01:48:11 PM
I have a question? Do you think that perhaps that PCB could be hot glued directly onto the back of an MR board, for space reasons? Just so I could have it all wired up in a relativly small space? I have some internal space issues with my custom I've been working on, but I really want to get a yellow Anti-Vandal, which only comes in momentary, working with an MR board. Still, I don't know that I would have space for this, etc.
I see no reason why you couldn't do glue it to the MR board.

Also,  Topic Stickied!
« Last Edit: March 15, 2010, 09:09:03 AM by QUI-GON JINN »
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Offline eastern57

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Re: How to use a momentary switch with a latching sound board.
« Reply #5 on: January 23, 2010, 02:02:57 PM »
Quote from: Darksaber 3 on January 23, 2010, 01:48:11 PM
I have a question? Do you think that perhaps that PCB could be hot glued directly onto the back of an MR board, for space reasons? Just so I could have it all wired up in a relativly small space? I have some internal space issues with my custom I've been working on, but I really want to get a yellow Anti-Vandal, which only comes in momentary, working with an MR board. Still, I don't know that I would have space for this, etc.

No - you MUST construct a separate chassis consisting of diamond disks and non-conducive adamantium struts.  :D  Hot glue is fine. ;) 

Smaller gauge wires, precise measurements, careful wire routing, and lots & lots of planning will strengthen your Cram-fu... it is an art... thus the "fu"... without it, it's just "cram".

Quote from: QUI-GON JINN on January 23, 2010, 01:51:52 PM
Also,  Topic Stickied!

Thanks Jay! ;)

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Offline Darksaber 3

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Re: How to use a momentary switch with a latching sound board.
« Reply #6 on: January 23, 2010, 06:56:07 PM »
K, thanks, I just wanted to make sure I wouldn't ruin the board or something. Well, when they get back in stock, I may pick up a few.
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Offline Delmustator

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Re: How to use a momentary switch with a latching sound board.
« Reply #7 on: January 25, 2010, 05:25:51 AM »
« Last Edit: January 25, 2010, 05:36:37 AM by Delmustator »
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Offline Darksaber 3

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Re: How to use a momentary switch with a latching sound board.
« Reply #8 on: January 25, 2010, 05:28:48 AM »
Hmmm, I just checked that out... It says that the ship in quantities of 250, I believe... Am I just reading it wrong?
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Offline Vektor

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Re: How to use a momentary switch with a latching sound board.
« Reply #9 on: January 25, 2010, 05:37:27 AM »
These little keychain flashlights also look awfully lot like Lighthounds, don't they...?

http://www.dealextreme.com/details.dx/sku.16510
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Offline Delmustator

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Re: How to use a momentary switch with a latching sound board.
« Reply #10 on: January 25, 2010, 06:35:21 AM »
Quote from: Vektor on January 25, 2010, 05:37:27 AM
These little keychain flashlights also look awfully lot like Lighthounds, don't they...?

http://www.dealextreme.com/details.dx/sku.16510

They are the same.. I actually looked there but the search did not show that one.

$2.38 for a 2-pack is a little more but they have them in stock. I usually order stuff once a month from them so I can combine all into one shipment.
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Offline QUI-GON JINN

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Re: How to use a momentary switch with a latching sound board.
« Reply #11 on: January 25, 2010, 12:09:44 PM »
Quote from: Vektor on January 25, 2010, 05:37:27 AM
These little keychain flashlights also look awfully lot like Lighthounds, don't they...?

http://www.dealextreme.com/details.dx/sku.16510
I looked there and couldn't find any.....thanks for that!
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Offline Delmustator

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Re: How to use a momentary switch with a latching sound board.
« Reply #12 on: January 30, 2010, 03:23:22 PM »
got some on order...
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Offline LUMINARA UNDULI

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Re: How to use a momentary switch with a latching sound board.
« Reply #13 on: January 30, 2010, 03:24:54 PM »
Lighthounds are also back in stock ;)
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Offline QUI-GON JINN

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Re: How to use a momentary switch with a latching sound board.
« Reply #14 on: January 31, 2010, 06:17:10 PM »
Quote from: LUMINARA UNDULI on January 30, 2010, 03:24:54 PM
Lighthounds are also back in stock ;)
They are now 15 short of fully stocked....;)
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