Thread: Densitron

There has already been a heated discussion about this issue... Please read this thread:
http://www.mp3car.com/cgi-bin/ultima...c&f=7&t=000385

If you have any trouble, I'd be glad to help... I've gone through 3 of these trying to figure it out, and now I've finally got it

-Miles

[ 10-12-2001: Message edited by: milesg ]

Hey Alon, i recently bought the same timeline lcd, and when i recived mine the positive and negative wires for the led backlight were disconnected and i can not find anywhere on the web where it shows which wire goes where. Can you look at your lcd and tell me which is the positive and negative terminal....thanks!

For SuperMatty and milesg, where did you guys get your pots from and do you have the part numbers? thanks

Also about the ribbon attached how do you know which hole corresponsed to which pin?

Ryan_Seibert The terminal marked "A" is the Anode (positive). The terminal Marked "C" is the Cathode (Negative).

SuperMatty That's great! Glad to hear it.

Jawbreak I just went to the local electronic store and got my pots there. Even radio shack should have the 10k Pot. For the 100 Ohm pot, My friend used a 1k pot and it worked fine, but it was really sensitive.

About the ribbon cable, I removed mine and replaced it with an IDE header type pin block. This is how it used to be:
Red Wire = Pin 16
Then it goes in order all the way to pin 1 which is at the opposite edge of the ribbon.

I hope this helps you guys. I'll post more info on my LCD installation later(I'm making it detachable). Let's just say that I've found a use for the "un-used" pin 16

-Miles

Hey Milesg, since im not to coordinated with the A" is the Anode (positive). The terminal Marked "C" is the Cathode (Negative)type of thing, and anyways, i cant find anywhere on the lcd where it says that, say that i am looking down at the lcd, with the ribbon cable on the right side, can you tell me on the opposite side ( the side with the power for the led) whether the red or black power cable goes on the top or the bottom?? Any help would be gretly appreciated! Thanks!

Hey, sorry to confuse you...

First off: you're looking at the thing upside-down hehe, the cable should be on the left if you're looking at it's face (or at least that's the way my last 3 LCDs were).

okay, so here it is:

______ | --------------- |C
Ribbon | LCD Screen Face |
------ |_________________|A


I hope this font works.
If not, then the Cathode is on top when the ribbon is on the left, and you're looking at the face of the LCD.

Good Luck,
-Miles

hmmm... Exactly as I planned

[ 10-14-2001: Message edited by: milesg ]

Sorry for my stupidity milesg, but your diagram did work Everything seems to but working great, i wired it tonight. Thanks for the help!