Jump to content



Photo
- - - - -

Claspad Backlight


  • Please log in to reply
10 replies to this topic

#1 Daruosh

Daruosh

    Casio Freak

  • Members
  • PipPipPipPip
  • 285 posts
  • Gender:Male
  • Location:Tehran - Iran
  • Interests:Computer Programming, Electronics, Image Processing, Neural Networks, AI, System Development, Calc, Guitar, Music,

  • Calculators:
    CP 300 OS 3.03, Algebra FX 2.0 Plus ROM 1.05, CG-20

Posted 23 June 2004 - 09:44 PM

Do you know how can I add backlight option to my CP?
I know someone that add backlight for TI calcs.
Check out: Backlight Page

It's amazing :D

#2 TheKingChaos

TheKingChaos

    Casio Fan

  • Members
  • PipPip
  • 30 posts
  • Location:Stgo de Chile

  • Calculators:
    Classpad 300

Posted 23 June 2004 - 10:20 PM

:o Does someone dare? :o
Because I would not dare :blah:
Not for the present time :rolleyes:

#3 mkanter

mkanter

    Casio Addict

  • Members
  • PipPipPip
  • 74 posts

  • Calculators:
    CFX9850G, ClassPad 300

Posted 24 June 2004 - 08:23 AM

you may buy some 2.5 mm white leds wire them together and clue them at the edge of the display (the screws are very small: 2mm or 1.5mm)

if you find out the power line (cummonly an line that is gnd if switched on and n/c if turned off). then you connect the leds with this line or you attach an external switch and connect the leds directly to the battery contacts.

NOTE: YOU WILL LOSE YOUR GARANTEE IF YOU OPEN THE CLASSPAD!!!

#4 qwerty841

qwerty841

    Casio Freak

  • Members
  • PipPipPipPip
  • 198 posts
  • Gender:Male
  • Location:vernal

  • Calculators:
    ClassPad 300,TI 83 PSE,TI Voyage 200,Windows Calculator

Posted 25 June 2004 - 07:26 PM

Maybe you could just get one of these...
http://www.classpad....&products_id=35

#5 Daruosh

Daruosh

    Casio Freak

  • Members
  • PipPipPipPip
  • 285 posts
  • Gender:Male
  • Location:Tehran - Iran
  • Interests:Computer Programming, Electronics, Image Processing, Neural Networks, AI, System Development, Calc, Guitar, Music,

  • Calculators:
    CP 300 OS 3.03, Algebra FX 2.0 Plus ROM 1.05, CG-20

Posted 25 June 2004 - 07:31 PM

I meant BACKLIGHT. Like PV backlight. By some revers engineering in PV I would add BACKLIGHT to my CP B)

#6 SoftCalc

SoftCalc

    Casio Technician

  • Members
  • PipPipPipPipPipPip
  • 406 posts
  • Location:Portland, OR USA

  • Calculators:
    ClassPad 300 , AFX 2.0, HP-48/49/50, TI-89/92/Voyager, HP Expander, etc...

Posted 26 June 2004 - 12:52 AM

If you're brave, and know your way around with a soddering iron
you can try it yourself :unsure:. Here are some links to other calculators/handhelds that people have added backlights for...

Basic example using a TI.
http://richfiles.sol.../Backlight.html
These plans are pretty general, which means they could be easily be applied to a Casio calculator. Of course it also means you need to figure out the specific stuff yourself.



:rock: HP 200LX palmtop (made ~1995, long since discontinued)
http://www.daniel-he...klight/install/
This web page applies to the HP 200LX, but again it could be applied to the Casio ClassPad. This web page has some really good pictures illustrations, a must read if you plan on trying this.

General Kit
http://www.backlight4you.com/
This company that offers a generic backlighting kit (the one used in the HP 200LX example above). They pretty much just sell you the parts.

#7 SoftCalc

SoftCalc

    Casio Technician

  • Members
  • PipPipPipPipPipPip
  • 406 posts
  • Location:Portland, OR USA

  • Calculators:
    ClassPad 300 , AFX 2.0, HP-48/49/50, TI-89/92/Voyager, HP Expander, etc...

Posted 26 June 2004 - 12:54 AM

You could buy a ClassPad RM, which has an external LCD for an overhead display. You can then use one of these light boxes to see it clearly.

http://www.loganelec...om/lightbox.htm

Taken literally, this would be a backlight :lol2:

#8 Daruosh

Daruosh

    Casio Freak

  • Members
  • PipPipPipPip
  • 285 posts
  • Gender:Male
  • Location:Tehran - Iran
  • Interests:Computer Programming, Electronics, Image Processing, Neural Networks, AI, System Development, Calc, Guitar, Music,

  • Calculators:
    CP 300 OS 3.03, Algebra FX 2.0 Plus ROM 1.05, CG-20

Posted 26 June 2004 - 07:02 PM

Tnx 4 ur valued info.
I've take apart my PV and now I'm trying to find out how its backlight works.

#9 Nurhidayat

Nurhidayat

    Newbie

  • Members
  • Pip
  • 8 posts

  • Calculators:
    classpad300,cfx 9850 gb+,fx3650p,algebra fx 2.0+,fx 991 ms

Posted 28 June 2004 - 11:02 AM

what is it for??

#10 SoftCalc

SoftCalc

    Casio Technician

  • Members
  • PipPipPipPipPipPip
  • 406 posts
  • Location:Portland, OR USA

  • Calculators:
    ClassPad 300 , AFX 2.0, HP-48/49/50, TI-89/92/Voyager, HP Expander, etc...

Posted 28 June 2004 - 05:29 PM

what is it for??

A backlight?.... it is an illuminated display. The LCD on the ClassPad doesn't have the best contrast. A blacklight is a series of LEDs (light emitting diodes) that shines light from behind the display.

Check out an example below to see what a difference it makes...

Posted Image

#11 PJay

PJay

    Casio Freak

  • Members
  • PipPipPipPip
  • 260 posts
  • Gender:Male

  • Calculators:
    Casio fx-991ES Plus

Posted 15 July 2004 - 07:16 AM

I meant BACKLIGHT. Like PV backlight. By some revers engineering in PV I would add BACKLIGHT to my CP B)

I need it REALLY ! Please help me ... :hammer: :unsure:
It's very good for night. If you can install it on CP, please tell me ! :hammer: :ph34r:




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users