F16v5 - low voltage outputs 9 to 16

S

sackboy

New elf
Joined
Jan 4, 2024
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Hi there,

I have just started settings out my brand new Falcon F16v5.

I have tested outputs 1 to 8 without issues, and the voltage is reading a correct 12v

I just connected a set of LEDs to output 9, and a load of green LEDs lot on on the board, indicating an error.

The voltage for outputs 9 to 16 is reading extremely low (around 3.5v).

I have checked the incoming voltage on “V2/GND” and the voltage is 12 volts.
I have also tested the PCB traces for the incoming voltage without issues, and tried using external power as well.

The web GUI also reports a correct 12v and I have set the switch on the pcb to 12v.

Note that I have disconnected "V1" for now while I am testing.

Still, I can only get 3.5v on outputs 9 to 16.

This board is brand new, anychance this board is faulty?IMG_6203.jpegIMG_6204.jpegIMG_6205.jpeg
 
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burnt said:
i could be wrong . does the f16 switch the output voltage off if no data?
Click to expand...
I was sending data at the time of testing. That's what was so odd. I just tried again no, still getting 3.5v during test on my voltmeter
 
Also, I am running a separate power supply for "V2" but I don't think that would be an issue. Its a beefy boy mean well and it is working fine on my external board.
 
Supply voltage is fine.

Stable 12v. I’ve also powered up the board without issues, and an external expansion board.

Are there any mystery dip switch settings or anything weird I have missed.

Not home to take anymore photos right now, but as I explained, “V1” is deliberately isolated right now, and worked fine, and the board can be logged into without issues.

Something is stopping the voltage between the board and terminal blocks .
 
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dont you need 12V to each input ?
looks like you only have incoming power to one side of the board ? both sides need to be fed if you want to use all 16 ? each side only power 8 ports each
 
try it again with the 12V going to both the Left side input and the right side input
dont forget they are reversed on one side, so watch to ensure you get Positive and GND the right way
 
Juddge said:
try it again with the 12V going to both the Left side input and the right side input
dont forget they are reversed on one side, so watch to ensure you get Positive and GND the right way
Click to expand...
Hi there, as mentioned before, both V1 and v2 were connected at the time of testing.

Polarity was correct as the first 8 outputs worked fine, and external and v2 power for the falcon computer tested and powered up ok.

No polarity issues, no voltage issues.

From what I know (and please correct me if I am wrong), V1 and V2 are independent from each other, hence why I have disconnected V1 while diagnosing this fault.

I have got the 7-12v volt switch selected.

I need to know what else to check before I go back to the manufacturer as everyone is advising the same things and not reading what I’ve already done in the way of fault finding.
 
sackboy said:
I was sending data at the time of testing. That's what was so odd. I just tried again no, still getting 3.5v during test on my voltmeter
Click to expand...
was f15 getting data or using f16 test mode. can post pic of output page.
 
burnt said:
was f15 getting data or using f16 test mode. can post pic of output page.
Click to expand...
Hi there.

I was running test mode.

I had the RGBW sequence running, which is how I know my first first ports were wired correctly, and the same with my expansion board.

Port “9” instantly brought up the led fault lights when I plugged in a string of 50 pixels.
That’s the moment that ports 9-16 all showed fault lights at the same time.

I initially thought I’d worked something back to front too, but the power supply, voltages and polarity was ok.

I Ben thought that maybe the connector for V2 was damaged, and I did a resistance check between this connector and the back of the pcb (the traces were fine).

I just don’t know what else to check, as all the switches and wiring looks fine.
 
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Update:


I spoke directly with David at Falcon about this issue. It’s not something that can be fixed on my end, and he’s already organised to send me a replacement board.





Big thanks to David — really nice guy and very helpful to deal with. 👍
 
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