"out9" appears to always be enabled

[brendon]

@dc42 Yes. If you remove the SD card (I am not using an SBC), the LEDs are enabled at power on.

[brendon]

I have the out 4-6 jumper between V_OUTLC1 + 12v and the out 7 - 9 jumper between V_FUSED + V__OUTLC2. Moving the out 4-6 jumper to V_FUSED + V_OUTLC1 has no effect.

Moving the out 7-9 jumper between V_OUTLC2 + 12v causes out9 to always be +12v.

[dc42]

@brendon it could either be a hardware fault or a firmware bug. Can you try reverting to the last RRF version when you had it working? Alternatively, if you are comfortable loading firmware with Bossa, you can try erasing the firmware and seeing whether OUT9 comes on when you press the reset button.

[dc42]

@brendon said in "out9" appears to always be enabled:

Moving the out 7-9 jumper between V_OUTLC2 + 12v causes out9 to always be +12v.

Do you mean 12V between the two OUT9 pins, or do you mean OUT9_NEG is at +12V (so OUT9 is off)?

[brendon]

@dc42 Technically it has 'never worked'. I wired up the LED strips when I assembled the machine, but just got around to connecting them this week. How far back in firmware releases should I try?

[brendon]

@dc42 +12v between the 2 output pins.

[dc42]

@brendon it sounds to me like a hardware fault then. warranty@duet3d.com.

[dc42]

PS - if you are into hardware, you could try measuring the voltages between each end of R52 and ground. They should both be at/close to 0V for OUT9 to be off.

[brendon]

@dc42 Is it not worth downgrading the firmware to see if it works on any other versions?

[T3P3Tony]

@brendon i just replicated the same setup with a 6HC and it works fine with 3.4b5 so i think its likely that the hardware is faulty. the quickest way to check is erase it using the jumper on the board and see if it still turns on.

[brendon]

@t3p3tony If I erase it, will I have to use Bossa to re-write firmware?

[T3P3Tony]

@brendon yes you will.

[brendon]

@t3p3tony @dc42 Erasing and reflashing with Bossa did not resolve the issue. I will reach out to warranty@duet3d.com. I appreciate the assistance!

[dc42]

@brendon what I actually meant was, when the board was erased and before you reinstalled the firmware, did OUT9 still turn on when you powered up or reset the board? If it did then that indicates a hardware issue.

[brendon]

@dc42 Sorry for the brevity in my previous response. Yes, out9 is still turned on and enabled after the board was erased but before the firmware was flashed.

[brendon]

@dc42 @T3P3Tony

The new board arrived and the Out channels are now properly controlling the LED strips. Thank you for helping me sort out my issue. The offending hardware is boxed up and will be arriving to you shortly. Thanks again!!!