Reprap Ramps 1.4 RRD Fan Extender

[Gerard123]

Again, i have a same kind of a earlier problem; good documentation
I buyed a Reprap Ramps 1.4 RRD Fan Extender from Geeetech (Reprap Ramps 1.4 RRD Fan Extender is marked with the text Geeetech.com) on Aliexpress, instead from geeetech.com.
Why ??? just for the price difference and its the same product.

BUT when i look for the specifications on the internet, i was warned the power cable is reversed; he picture of Geeetech is wrong
Just to avoid to blow up the Fan Extender, what pins i must use for the power connections, and, how to is the order of the pins ?
They aren't marked on the pcb, nor vcc or ground is marked..........

http://prntscr.com/c7fak5 ==> picture from Geeetech
http://prntscr.com/c7fa4d ==>Wrong cables ???

[William]

Hi,
I don't know where your second pic comes from.But i think you'd better plug them in the way Geeetech shows in the pic they attached:

7.jpg (99.61 KiB) Viewed 10397 times

[Gerard123]

Hi William,

The second picture is from instructables.com.
http://www.instructables.com/id/Configu ... Fan-Exten/
I know this site it as a reliable site.

In the past i had similar problems with Geeetech.
Thats why i have doubt about this.
Should i go for Instructables or not.
I also can't read the chip number, so i can't check data sheet for the right connections...............

Lol, if i guess wrong, i damage the fan extender...

[Gerard123]

Hi William,

The second picture is from instructables.com.
http://www.instructables.com/id/Configu ... Fan-Exten/
I know this site it as a reliable site.

In the past i had similar problems with Geeetech.
Thats why i have doubt about this.
Should i go for Instructables or not.
I also can't read the chip number, so i can't check data sheet for the right connections...............

Lol, if i guess wrong, i damage the fan extender...

[Gerard123]

.... Also, on this website, http://www.soliforum.com/topic/2816/how ... ontroller/ the wires are revered too....

I think Geeetech made a mistake
If so, not nice of Geeetech and i hope the correct it...........

[Gerard123]

LOl, msg will be checked by the administrators then placed ?? (or forgotten ??)

[William]

But i measured it,the picture i attached is right.The red cable is for positive electrode，and the black one is for negative electrode.
Let know how it goes after you test it.