Re: My Next eelmod: G4 Cube w/ Videos
eelhead said:
HALPS!!!
OKs so I still lack the PICO power brick so I am using a regular PSU to do this for now
So I followed minihacks guide to getting my touch sensor to work.
I did the resistor off the LED to the #2 on the plug - from that I put it to LED+
#1 goes to 5v constant
#4 I put to PWR+
#5 I put to PWR-
so thing is when the board is not running LED is on and as soon as I touch the sensor it turns on the board but the LED goes out ??
So any Ideas? I swapped the PWR ones around, I put the #2 on to the LED- instead of +
Also I have the back plate the that touch sensor is on grounded with it to the groung on a 4 pin molex off the PSU for testing.
Hi Eelhead. Sounds to me as if the connection to the LED is wrong. The point of the resistor modification is to force the LED to behave correctly in the absence of the "real" Cube signals. So there must be something wrong with that connection somewhere.
There are only a few variables to look at:
Did you connect to the right pin of the PSU/ Is the connection still good at the lead going to the 5 pin cube connector/ is the connection still good at the LED. I suggest the following troubleshoot:
A. Make sure the wire is connected properly to the light green wire of the PICO (pin 16, PS_On signal) by doing the following:
1. Disconnect the wire from the leg of the LED, but keeping the multi lead connector for the cube switch attached
2. With the power disconnected from the cube (i.e. mains lead completely disconnected) check that the signal you get at the end of the wire before the resistor (probably hidden under heatshrink) is NOT at zero resistance to ground. It needs to be "floating" which will give a theoretically infinite resistance reading in that state.
2. Switch the meter to volts and now check that with the unit plugged into the mains but not switched on that you see the floating voltage value and that then when you turn the Cube on with the touch switch it goes to zero volts.
3. If 1 or 2 don't display the expected behaviours then you may have connected to the wrong pin of the PICO or the connection may not be good.
4. Assuming there is a problem still at stage 3 then double check you're at the right pin of the PICO. If you are sure you are using the correct pin from the PICO then try making the connection without wiring into the cube connector lead. In other words, remove your resistor connection from pin 2 and instead go straight to the flying lead from your PICO - if that cures the issue then possible shorting out at the connector might have happened (maybe a solder bridge) or perhaps some cubes actually had pin 2 of the connector actually connected to something and so yours needs a direct connection (doubt it - more likely a wiring error).
Good luck!! It WILL work.
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