Lcd Help!!

James · Dec 15, 2001

Firstly Hello to all

Right i built a Paralell Cable and attached it to the LCD Display
All is Working Fine , Except that when i use the Backlight Which is Connected to a Seperate +5 and Ground (the Light Comes on but after about 1 min the thing gets so dam hot u could fry a Egg on the Thing Thus Forcing me to Disable the Light

i used these Schematics for the LCD Hookup and all Works Sweet apart from the Light

http://www.ocmod.com/img/articles/lcd01/sch01b.gif

PLEASE HELP me with this B4 i go NUTS!...

THX.......

CF Tech · Dec 16, 2001

The backlight must have a current limiting resistor installed. Please see this thread for instructions on how to calculate Rlimit.

There is schematic in this post that shows the connection of Rlimit.

High current through the backlight can damage the backlight as well as causing too much heat.

James · Dec 17, 2001

LCD is now all sorted light is on and all is cool

i must say thank you to the team at crystalfontz your products are second to none and the after sales support is exceptional
from 1 very happy customer thanks again!!! .............

Lcd Help!!

James

New member

CF Tech

Administrator

James

New member