First off I am not an electrical genius but I can read basic schematics and follow directions and know my limits. I am fully aware of safety issues and concerns.

I need to be able to make this illustration work for me .... there has to be something simple that I just don't know.



Right now it acts like the power button is being held down, or always on. They all power up and then power off again a few seconds later. So I am getting cross talk between the 3 components I believe. I was thinking a simple diode in line but then I don't think that they would turn on.

I am hooked into the actual physical switch for the components and they all work as they should when I use 3 separate switches but not when trying to use one switch. Only One switch can to be used for ease of operation and convenience. I am not looking for any different solutions other than this as this fits my project as it stands now.

I spent about 4 hours searching this forum and a couple more on Google looking for what I need. I am not able to either search properly or maybe what I need if more complex than I think.

Do I need to build a board that when it the button is pushed and released it will send a the same kind of signal to the individual components? What do I need for parts?

I am not looking for this to be done for me but maybe point me in the direction I need to research. I like to learn and hands on for me is the best way.

Thank you for your time.

 

What exactly are you hoping to achieve? From what I can gather, you want to switch on 3 devices by throwing the same switch? To do this, you want to switch a common supply to all 3 devices? A diagram of your current arrangement would help us.

 

Give us more information about this, do you want to switch on all devices at once, or each one individually?

Use a rocker/ toggle switch instead.

 

First off I am not an electrical genius but I can read basic schematics and follow directions and know my limits. I am fully aware of safety issues and concerns.

I need to be able to make this illustration work for me .... there has to be something simple that I just don't know.

View attachment 102788

Right now it acts like the power button is being held down, or always on. They all power up and then power off again a few seconds later. So I am getting cross talk between the 3 components I believe. I was thinking a simple diode in line but then I don't think that they would turn on.

I am hooked into the actual physical switch for the components and they all work as they should when I use 3 separate switches but not when trying to use one switch. Only One switch can to be used for ease of operation and convenience. I am not looking for any different solutions other than this as this fits my project as it stands now.

I spent about 4 hours searching this forum and a couple more on Google looking for what I need. I am not able to either search properly or maybe what I need if more complex than I think.

Do I need to build a board that when it the button is pushed and released it will send a the same kind of signal to the individual components? What do I need for parts?

I am not looking for this to be done for me but maybe point me in the direction I need to research. I like to learn and hands on for me is the best way.

Thank you for your time.

How does what you want differ from just plugging them into a power strip?

 

Modern TVs don't turn on when attached to power, switched or otherwise. They sit in standby mode waiting for a button push on the chassis or remote.

Are you trying to switch power or video/audio signals?

 

Sorry for the slow reply ... the TV's I have do not remember last state after power loss so they will not come back to full on when power is applied, like say from a smart power strip, only comes back to a standby state waiting for a signal from a remote or button push.
Correct, all I need to do is turn on the TV'S and computer from a standby state to power on .... one momentary switch is what is being used .... just like you would be pushing the button on each unit, But I need to do it remotely as the devices are not within reach to push a physical button. A remote for the TV's is also not practical or user friendly. Here is my project .... .
Virtual Pinball Cabinet, I had 3 separate push button switches in the back of the cabinet but now I have moved the machine around and I am not able to reach the buttons. I installed a momentary on button on the bottom of the cabinet in the same location as a normal pinball machine and I only have room for, and for easy of use for others that would walk up to it and play, one button to push.
The third (smallest) screen is a actual de-cased laptop screen and it powers from the PC Power supply so there is no need for it to be on a switch.
The Dropbox link to my build if anyone is interested .... https://www.dropbox.com/sh/qyyzgwew645n89p/AAC9st3psPwWiLBwHYkKOhc8a?dl=0
.

 

Sorry, Yes I need all devices to turn on at the same time with one button push. Like I stated in the first post, if I connect all 3 of the device leads to a single button each device will power on but then also power off as if the button is being held down. I believe that all the devices are wired correctly as it is only 2 wires on each device, one ground and the other should be a small voltage. When you connect the circuit (with the momentary button) the power either comes on or turns off. So the only thing I can figure is that I have different voltages that are "confusing" the devices and making them thing that there is a button being pushed. Sorry if this is confusing but it sounds good in my head .... lol Probably why I can not figure it out.
So I was thinking that I need individual device isolation but still have the ability to turn on all three from a single switch at the same time.

Again thanks for your time and responses

 

Again, a diagram/schematic of your current arrangement would help a lot. I suspect that you're not using a double poll switch as you should be.

 

Again, a diagram/schematic of your current arrangement would help a lot. I suspect that you're not using a double poll switch as you should be.

Thank you TheButtonThief ... I could draw up a Diagram/schematic of what I have working now but it would not look much different than what I have posted above. Really all this is in my head for the most part. But putting it down here and looking at it has helped and actually I think you have given me the answer.
I did not know they made a triple or quad throw switch and I think that will work. So thank you for the help. After a google search I came up with this ...

that should allow me to accomplish what I need, to make all three devices turn on when I push the button. So looking at the switch pictured, it seems that each row or column is for one device with a common / NO / NC tabs .... simple and cheap.
I am going with this part unless anyone can tell me why this will not work.
Thank you again for your time and patience and sorry I could not make the explanation simpler. Great help from all thank you.

 

So looking at the switch pictured, it seems that each row or column is for one device with a common / NO / NC tabs .... simple and cheap.

Seems like a suitable switch, with the only problem that I can this of is that it may be rather hard to depress with your fingers as is the type of thing found in a guitar pedal and my guitar pedals are very firm to push even with a foot and a fair bit of body weight. Hope my quick diagram helps you. The one above shows how I think you've currently got it wired and the one below shows the correct may to wire it up.

 

Thank you, yes it seems to be a foot switch .... did not think about resistance in physical movement. I will keep looking for a suitable 3 pole switch.

Thank you for the diagram and you are correct on how I had it wired

 

These seem to be a little tough to find .... not sure if this one is a foot switch or not ....

http://www.mouser.com/ProductDetail...GAEpiMZZMsqIr59i2oRcgcqsvIoT7%2bNF/a6F3xL7Bo=

 

Separate relays, a small power supply and a short one-shot timer (100-500ms) triggered by a momentary switch of your choice would work.

 

Separate relays, a small power supply and a short one-shot timer (100-500ms) triggered by a momentary switch of your choice would work.

I had thought of that but was hoping for a little more simple of a solution .... I already use some relay boards to power other items from a controller that reads data from the emulator via the usb. So I guess I could build something like you suggest but I am running out of real estate inside the cab .... and it also seems a bit over kill for this very low power task.

Thank you for your suggestion, it gives me another avenue to look down.