634 Installation Manual

[rplaza]

Hi, I purchased the CFA634-TFB-KS then I conected to my serial port and it worked perfect but without the backlight.
Then I found out that I need to put 5v to it in order to make it work.

But there's 2 5v inputs I don't want to tested each one because i'm afraid i can damage the display.

So I would like to read some instructions before installing it.

If someone have this information please share it with me.

Thanks,

RP.

Crystalfontz LCD Blog

Looking for additional LCD resources? Check out our LCD blog for the latest developments in LCD technology.

 

[CF Support]

You connect 5v to Pin 3 (VLED) for the backlight.

Usually we would attach the WR232Y02 cable to it if you ordered it at the same time.

 

[rplaza]

Backlight power conection

So just to be sure, I have to conect from my pc power supply a
Red (+5v) to (VLED) and the Black (ground) to ground directly without any resistance?
I read something on the forum that a 8 ohm resistance was used in between this cable.

 

[CF Support]

See the WR232Y02 cable here:
http://www.crystalfontz.com/products/cables/index.html#WR232Y02

No resistors needed, they're already on the PCB.