Help! No power to flight board or rx!

[JBRUSCH]

I have painstakingly pieced together my quad, which has taken over a month and today was supposed to be my quad and my first flight ever. However, the stupid thing won't recieve power. Battery is fully charged, and wires are plugged in, but I get nothing. Here is my setup:

Kk2.1.5 flight board
F450 frame
DJI 2212/920kv motors
DJI E300 15a ESCs
HK6S TX/RX
Turnigy 2650mAh 3 cell

I think the ESCs aren't sending power to the board because when I plugged another esc from a plane into the flight board, it all powered up. What does it take to fix this?? I'm dying to fly already. Thanks for the help!

 

[tstrike]

Those esc's are opto's, the kk board needs at least one but really 2 esc's with built in bec's to drop voltage down to the receiver. Not sure you can use those with the kk board.

paste this into google-
can you use opto escs with the kk 2.1.5 board?
one of the results you'll get will lead you to a website that can't be named. Your answers and solutions can be found there.
Short story is you'll need a y servo cable and a small 5 volt bec to get power to kk board.

 

[JBRUSCH]

Those esc's are opto's, the kk board needs at least one but really 2 esc's with built in bec's to drop voltage down to the receiver. Not sure you can use those with the kk board.

paste this into google-
can you use opto escs with the kk 2.1.5 board?
one of the results you'll get will lead you to a website that can't be named. Your answers and solutions can be found there.
Short story is you'll need a y servo cable and a small 5 volt bec to get power to kk board.

Ok I found the site you referenced and so I'll be ordering a UBEC and y servo connector. Basically, there is continuity between the receiver and the M1 port, but the M2-M8 ports are separate. I have a 6 channel rx/tx so ill plug in on end of the y into the rx and the other into one of the ports M5-M8. This will supply both "halves" with 5v.

On a possibly separate note, I have simulated this with two ESCs; each with the servo connector plugged in in the same way described above. I verified that all M1-M8 ports have power using a piezo buzzer. The KK board and receiver both turn on as well, but the motors don't turn at all. I enter the receiver check and when move the sticks, get the appropriate inputs. So the ports, rx, and board are getting power, and the ESCs are powered by the integrated power distribution in the F450 frame. I arm the board and nothing happens. There are also no displayed errors. What's going on?

 

[tstrike]

On a possibly separate note, I have simulated this with two ESCs; each with the servo connector plugged in in the same way described above. I verified that all M1-M8 ports have power using a piezo buzzer. The KK board and receiver both turn on as well, but the motors don't turn at all. I enter the receiver check and when move the sticks, get the appropriate inputs. So the ports, rx, and board are getting power, and the ESCs are powered by the integrated power distribution in the F450 frame. I arm the board and nothing happens. There are also no displayed errors. What's going on?

Don't know if you've calibrated the esc's yet but, and this can get tricky- Turn on your radio, raise throttle all the way up, here's the tricky part, while holding down buttons 1 and 4 on the kk board, plug in battery, wait for the single tone (mine was really faint) when you hear the tone, lower throttle to bottom, wait for final tone then release the buttons, done.
You may also have some channels reversed, like when I did mine I had my rudder channel reversed and it wouldn't arm, so you have to go in to servo setup in your radio menu and reverse the channel.
I'm just getting into the kk board so I'm no expert.

 

[JBRUSCH]

Don't know if you've calibrated the esc's yet but, and this can get tricky- Turn on your radio, raise throttle all the way up, here's the tricky part, while holding down buttons 1 and 4 on the kk board, plug in battery, wait for the single tone (mine was really faint) when you hear the tone, lower throttle to bottom, wait for final tone then release the buttons, done.
You may also have some channels reversed, like when I did mine I had my rudder channel reversed and it wouldn't arm, so you have to go in to servo setup in your radio menu and reverse the channel.
I'm just getting into the kk board so I'm no expert.

I'm pretty sure I haven't calibrated them yet. But I don't think that's my current issue. I have the battery monitor attached to the power distribution and when I plug in a battery, the kk board continues to read 0.0v. Also, when I plug in the battery, the ESCs should beep indicating that they have power, but they don't make a sound. I've already gone into the receiver test to switch any channels and trim them to the center. When I attempt to calibrate the ESCs there is not a single sound. I think my power distribution board is flawed. Today I will check for continuity between the power cable and ESC solder points.

 

[JBRUSCH]

Alright through testing continuity, I have found that the power distribution board is working as expected. The only issue is somewhere between the positive power cable solder point and the xt60 plug terminal. The issue was that the ESCs were not receiving any power at all. Ill make another power cable and then try to fly.