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Author Topic: NBV4 Light Strip causes speaker static - help?  (Read 268 times)

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Offline ahuppert

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NBV4 Light Strip causes speaker static - help?
« on: July 22, 2021, 12:10:43 PM »
I have an NBV4 wired with 20g wire between the board and the RC port, the RC port and the battery, the board and the LED strip, and the REC port and the LED strip (see the thick wires in the picture). I'm using a 15A continuous draw battery, and I am getting static out of the speaker when I ignite the saber. It's fine without the blade attached, but the color and the sound is messed up when I connect a blade.  I've tried 32 separate blades on this saber and the same thing happens every time.

I'm using the following:

16mm Anti Vandal Momentary Red Dot/Ring Switch
20mA DynaOhm™ Variable Resistor
Saber Essentials 28mm Stealth V2 Speaker
330 ohm SMD 0603 resistor
Pixel PCB connector
Switchcraft 2.1mm Power Jack
Nano Biscotte Sound Module V4
DM Sony Li-Ion 18650 3.7V 15A 3120mAh PCB Protected Rechargeable Battery



« Last Edit: July 22, 2021, 12:14:05 PM by ahuppert »

Offline ahuppert

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Re: NBV4 Light Strip causes speaker static - help?
« Reply #1 on: July 22, 2021, 12:15:32 PM »
Here are some images of the PCB wiring.  I've tried multiple blades and the same problem happens:














Offline jbkuma

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Re: NBV4 Light Strip causes speaker static - help?
« Reply #2 on: July 26, 2021, 04:36:43 AM »
In your first photo (https://ibb.co/10vTHz1) Your hilt connector appears to be wired improperly.  I'm not 100% certain how the TCSS connectors are supposed to be wired, but you seem to either have a + wire on the - (top) side if the pads are supposed to be the same, or be bridging + to - on the - side (bottom) if the pads are not the same.

Offline scott

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Re: NBV4 Light Strip causes speaker static - help?
« Reply #3 on: July 26, 2021, 06:11:45 PM »
I was going to say the same thing as JB.  Curious why you decided to to double one side and not the other.  If you use 22 awg you should be able to get away with one pos and one neg.  on the other hand, if you actually did wire a positive to the negative pad, it should short and not just give you wonky results. 

 

retrousse