« previous next »
Pages: [1]   Go Down

Author Topic: VFD Display 20x2  (Read 5537 times)

0 Members and 1 Guest are viewing this topic.

Offline facumedicaTopic starter

  • Contributor
  • Posts: 49
  • Country: 00
    • TatuBlog
VFD Display 20x2
« on: April 15, 2014, 09:49:21 pm »
I need the datasheet of a VFD display. Is marked from NEC, it says FD20X2AA-C. Is quite old, it has some custom chips on it back and two 7408.
Thanks!
Logged
My blog! English and Spanish! No Google translation! http://tatublog.com.ar

The youth gets together his materials to build a bridge to the moon, or, perchance, a palace or temple on the earth, and, at length, the middle-aged man concludes to build a woodshed with them.

Henry David Thoreau
 

Offline codeboy2k

  • Super Contributor
  • ***
  • Posts: 1836
  • Country: ca
Re: VFD Display 20x2
« Reply #1 on: April 19, 2014, 12:47:21 pm »
I have the following for the NEC FC20X2JA.. it might help.
Logged
 

Offline facumedicaTopic starter

  • Contributor
  • Posts: 49
  • Country: 00
    • TatuBlog
Re: VFD Display 20x2
« Reply #2 on: April 20, 2014, 09:55:07 pm »
Thanks! It's not the same but it should give me an idea. I'll take a look and maybe use the Test function and see if it does something. :-/O
I'll keep you informed  :-DMM
Thanks again!
Logged
My blog! English and Spanish! No Google translation! http://tatublog.com.ar

The youth gets together his materials to build a bridge to the moon, or, perchance, a palace or temple on the earth, and, at length, the middle-aged man concludes to build a woodshed with them.

Henry David Thoreau
 

Offline facumedicaTopic starter

  • Contributor
  • Posts: 49
  • Country: 00
    • TatuBlog
Re: VFD Display 20x2
« Reply #3 on: April 21, 2014, 12:26:51 am »
I'm uploading some pictures, maybe they'll help.
There's a simple schematic, I couldn't find the Datasheet of the B6101C055/B6I0IC55
Mine has only parallel comunication so there are less pins.
Could you give me a hand on this?
Schematic (can't upload it here it's a big image. 1.1MB) https://www.dropbox.com/s/46utny2n03lpa39/20140420_211400.jpg[/b]]https://www.dropbox.com/s/46utny2n03lpa39/20140420_211400.jpg
Bye!
Logged
My blog! English and Spanish! No Google translation! http://tatublog.com.ar

The youth gets together his materials to build a bridge to the moon, or, perchance, a palace or temple on the earth, and, at length, the middle-aged man concludes to build a woodshed with them.

Henry David Thoreau
 

Offline facumedicaTopic starter

  • Contributor
  • Posts: 49
  • Country: 00
    • TatuBlog
Re: VFD Display 20x2
« Reply #4 on: April 21, 2014, 12:30:35 am »
More attachments!
The AND gates are obviously used as buffers.  :P
Logged
My blog! English and Spanish! No Google translation! http://tatublog.com.ar

The youth gets together his materials to build a bridge to the moon, or, perchance, a palace or temple on the earth, and, at length, the middle-aged man concludes to build a woodshed with them.

Henry David Thoreau
 

Offline facumedicaTopic starter

  • Contributor
  • Posts: 49
  • Country: 00
    • TatuBlog
Re: VFD Display 20x2
« Reply #5 on: April 21, 2014, 01:46:23 am »
The B6101 it's a gate array. It will be more difficult to know which are the data lines, I though that one was like a controller  :palm:
Datasheet: http://pdf1.alldatasheet.com/datasheet-pdf/view/127292/NEC/B6101.html

How can I control the display without the board which came with it? How can I make a custom controller?
« Last Edit: April 21, 2014, 02:20:03 am by facumedica »
Logged
My blog! English and Spanish! No Google translation! http://tatublog.com.ar

The youth gets together his materials to build a bridge to the moon, or, perchance, a palace or temple on the earth, and, at length, the middle-aged man concludes to build a woodshed with them.

Henry David Thoreau
 

Offline facumedicaTopic starter

  • Contributor
  • Posts: 49
  • Country: 00
    • TatuBlog
Re: VFD Display 20x2
« Reply #6 on: April 21, 2014, 03:14:26 pm »
It Is almost impossible to know which pins are which  :palm: If I could find the datasheet of the fg70's or something more obvious I could trace the pins (as I did on a hd44780 lcd).
I'm considering to make a custom driver with a PIC micro. I will desolder the glass and start testing!
Any ideas for the controller?
Bye!
Logged
My blog! English and Spanish! No Google translation! http://tatublog.com.ar

The youth gets together his materials to build a bridge to the moon, or, perchance, a palace or temple on the earth, and, at length, the middle-aged man concludes to build a woodshed with them.

Henry David Thoreau
 
Pages: [1]   Go Up
« previous next »

Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf

 


EEVblog Main Site EEVblog on Youtube EEVblog on Twitter EEVblog on Facebook EEVblog on Odysee