usb Pixelnet dongle/16 port hub/ssc major issues

[tbone321]

Resistors are not polarized so it really doesn't matter which way you put them in.  Perhaps you might want to take closeup pictures of the board and post them so that we can see it. 

[urthegman]

When you say you moved the shunt to program, that DOES mean you have it on BOTH program pins at the same time?(in the picture the shunt is only on one pin) I don't know why but I've always put the shunt on both pins BEFORE I hit transmit.

[lawn patrol]

ive tried it both way ways it never works

[tbone321]

If the shunt is not on both pins then it is doing nothing.  Setting it on one pin is simply the storage position which is I suspect, why he has it like that, so he doesn't lose it.

[TexasStingray]

Aafter build 2 SSC and still no lights, I would look at the Hub, that's what I think would be the next logical thing to do.

[rm357]

It's time to start posting pictures of your boards.

[lawn patrol]

This just happened this morning when i was plugging in the 4 pin power i forgot to disconnect the power supply and i had pin in wrong direction...board still has led on. will post pictures later tonight have to go to work.

[peteandvanessa]

This just happened this morning when i was plugging in the 4 pin power i forgot to disconnect the power supply and i had pin in wrong direction...board still has led on. will post pictures later tonight have to go to work.

Ouch, did that burn through the copper track?

[t.jo13]

Following the trace that is fried, It connects the first pin on all (3)- 4 pin power connectors and sends power to the st485Bn chip just above the first power connector. Then in the other direction it sends power to 1 pin on the 24 pin connector. This could cause some additional issues.

[lawn patrol]

either way ss dont work now and didnt work before im so frustrated im about to toss it in the trash. im going to start building my le now and hopefully that will work with the dongle.

[TexasStingray]

After you build the Express, reprogram the USB Dongle for DMX and hook it directly to the Express. This way for sure you will know that the USB Dongle and the Express are working. You can always reprogram the USB Dongle again for PixelNet. Then you can start looking at the Hub again.

[lawn patrol]

still working on the express building two of them...will the damage to the hub be fixable? maybe put a jumper wire in?

If all goes well i should be done with the build by friday

[TexasStingray]

A jumper wire might work but be very careful. You may have damaged some components as well.

[rm357]

If the led is still working, I think you dodged a bullet. The 5v is only used for the 485 chips, which require very little power. The led is lit from the 5v line at the 485 chip - most likely getting power from the outside 4 pin connector.

I don't think you need to worry about a jumper.

[taybrynn]

Just make sure you take your time.  I might suggest trying xlights instead of vixen as its tester is really nice and easy to use.

You need to take good quality pictures of your boards in natural diffused daylight with the flash off and post them.  I think that would help a lot and allow members to review your board in greater detail for problems.  Capture a clear picture of both the front and back of the board.