JBL FLIP 2 - auto sleep

[TRelectro]

Hello guys,

I have one problem with speakers JBL FLIP 2. These speakers have a auto sleep system and after 30 minutes without audio signal they turn off. This system could be good if when we send audio again they turn on automatically but that doesn't happen. I want develop one circuit capable to turn on the speakers when I play music. So I had soldering one wire on each terminal of ON/OFF button and I searched for a solution. I found some solutions for that but still have a problem. My circuit amplifies the sound signal with one 9VAC/230VAC and with a diode charges a capacitor. When this capacitor have a certain value of DC voltage turns on one tiristor and with that closes the ON/OFF button and turns ON the speaker. After that the problem is the audio signal charges the capacitor again and turns on the tiristor again. With the button to turn ON and turn OFF the speaker is the same the circuit turns ON the speaker and after a while turns OFF the speaker. And do it repeatedly.

Someone have a solution for that?

Thanks everyone and sorry for my bad english :/

[budm]

Re: JBL FLIP 2 - auto sleep

"I have one problem with speakers JBL FLIP 2. These speakers have a auto sleep system and after 30 minutes without audio signal they turn off. This system could be good if when we send audio again they turn on automatically but that doesn't happen." So do you mean the AUTO-TURN on when audio signal is present does not work any more?
That power switch is a MOMENTARY switch isn't it, not latching type?

[TRelectro]

Re: JBL FLIP 2 - auto sleep

So do you mean the AUTO-TURN on when audio signal is present does not work any more?

These speakers don't have AUTO-TURN ON when audio signal is present. Basically they have AUTO-TURN OFF but don't have the opposite.

That power switch is a MOMENTARY switch isn't it, not latching type?

Yes, it's. You can see in the picture below.

http://brain-images.cdn.dixons.com/4...002004_002.jpg

Thanks

[stj]

Re: JBL FLIP 2 - auto sleep

search for a "VOX switch" schematic.

or buy one like this:
http://store.qkits.com/moreinfo.cfm/QK126

[TRelectro]

Re: JBL FLIP 2 - auto sleep

search for a "VOX switch" schematic.

or buy one like this:
http://store.qkits.com/moreinfo.cfm/QK126

Hello,

I thougth in that but still have a problem. The button is the same to Turn ON and Turn OFF the spear so for example, if I buy a vox switch to turn on when I clap my hands I clap one time and the switch turn on the speaker, if I clap again they turned off. And that is the problem that I have. When I played music the capacitor charges and the circuit turns On the speakers but with the music the capacitor charges again and turns Off the speakers.

[Agent24]

Re: JBL FLIP 2 - auto sleep

A VOX switch works differently - as long as it has audio input, then it will keep the switch ON. When the audio input stops, it turns the switch off.

Isn't that what you want?

[stj]

Re: JBL FLIP 2 - auto sleep

no, his system is using a microcontroller.
he needs to put a logic gate such as an and gate in the circuit so the vox only outputs if the standby led is on or the power is off.

you could probably use a transistor with the vox feeding the base, the led feed driving the collector and the emiter going to the switch.
or something not too different.

a schematic would help.

[TRelectro]

Re: JBL FLIP 2 - auto sleep

no, his system is using a microcontroller.
he needs to put a logic gate such as an and gate in the circuit so the vox only outputs if the standby led is on or the power is off.

you could probably use a transistor with the vox feeding the base, the led feed driving the collector and the emiter going to the switch.
or something not too different.

a schematic would help.

Yes, that is what I want. Some logic with 2 inputs (One voltage signal from speaker who tell if the speaker is on or off and one input from a vox circuit for example) If the input from vox circuit is "active" and the speaker is off then I close the button terminals and turns On the speaker, otherwise doesn't do anything.

I will put the circuit that I have and if someone could tell me how can I implement these logic with circuit I will be appreciated