Fans issue geeetech i3x printer

[William]

Hi. I ask to seller and he told me to check jp2. If not connected, to use a cap...
I use a 12v input...
I am confused.

Hi,
Don't worry.You can have a try.The fans will get the power supply from the PSU directly after you do that.

[shadowcaster]

Hi. I have 12 v on that pin. Now what can i do?

[shadowcaster]

Hi. I tried it and my fans come to life...also pwm fan works properly. But why? What is the difference between cap on jp2 or not? Only powers on fans?
Regards.

[William]

Hi. I tried it and my fans come to life...also pwm fan works properly. But why? What is the difference between cap on jp2 or not? Only powers on fans?
Regards.

Hi,
With the cap,the fans will get the power supply from the PSU directly(Your DC output is 12V,and your fan's operating voltage is 12V too,so it's OK).
And without it,the fans will get the power from a regulator chip.

[shadowcaster]

So the chip doesn't work properly? But on the voltage regulator i have 12V...

[William]

So the chip doesn't work properly? But on the voltage regulator i have 12V...

It is possible some other around the chip doesn't work properly...

[shadowcaster]

Hi. Thanks for reply. Can you provide me the circuit schematic or pcb so i can i check the issue? Regards.

[William]

Hi. Thanks for reply. Can you provide me the circuit schematic or pcb so i can i check the issue? Regards.

Sure,here it is:

Regards

[shadowcaster]

Thanks a lot!

[shadowcaster]

Hi. Thanks a lot. Can you provider me the pcb's section relatively power fan route trought JP2? Regards.