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| Speaker hack and electrical pass-through questions |
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| pmc:
I think that's just a momentary switch. Can't you just jumper the two connections under the button so that it's "always on"? -pmc |
| NickG:
If you hold the button down and the speakers stay on then that is true. However, there are four connections in the button...two paths? It is possible that having two paths helps to create the on/off toggling circuit, (the two transistors closest to the extension cord as Blanka stated) and you may need to solder across only two poles (not all four.) This is likely the situation if the action of holding the button down when powering it on eventually powers it off as well. I think the six wires are: Headphone Left and Right = Green and Yellow Ground = Black +Volts = Dark Red Volume and Bass attenuation level = Orange and Red |
| solowCX:
If the button is held and power is restored the speakers do not turn on, it needs the actual press of the button for power to be restored. This is even if the button is held as power is lost, or if the button is pressed and held after the cut-off and then restored. If the button is held down while the speakers are on normally they turn off immediately, not when you let go of the button. |
| NickG:
That seems to make sense. I would just try to short across one of the contact pairs (then the other pair) of the button while powered (without pressing the button to see if that turns it on. No! Wait, don't do that yet! Looking at the solder side photo of the PCB, the button has six solder points. When the button is pressed the East most is probably shorted to the Southeast and the West contact shorts to the Southwest? This is most likely, but it may short them all together instead. You could verify this with an ohmmeter before doing any potentially hazardous live testing. |
| solowCX:
A better understanding (or really one at all) of electrical engineering would probably help now then :). Actually don't have anything on hand to solder with, or an ohmmeter for that matter. Would a multimeter do the same as an ohmmeter, and what would I need to be checking for on the solder points? Thanks for the help in looking through this stuff, I'm sure I could have guessed it wouldn't have been as simple as cutting a wire or something. |
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