Re: IIc Flat Panel Display

[giorgio.morocutti@alice.it]

Il Sat, 02 Jun 2012 16:29:17 -0500, Michael J. Mahon <mjmahon@aol.com>
ha scritto:

><giorgio.morocutti@alice.it> wrote:
>> Il Sat, 02 Jun 2012 12:45:47 -0500, Michael J. Mahon <mjmahon@aol.com>
>> ha scritto:
>> 
>>> Wayne Stewart <waynejstewart@gmail.com> wrote:
>>>> I have a couple. The only place where they're really easily readable
>>>> is outside in sunlight
>>> 
>>> Has anyone ever opened one up and played with the LCD bias?
>>> 
>> And there are some schematics?
>> 
>> Thanks
>> 
>> Giorgio
>> 
>> 
>> Apple II and Apple III forever !!!
>
>It should be quite easy even without schematics. 
>
>But after posting, I realized that a panel of this vintage probably has a
>bias adjustment, labelled "contrast" or something similar. If this control
>can change the display from "off" to "black", then that's all that bias can
>do. If it is all the way at one end for best display, then changing the
>bias range could make a real improvement. 
>
Sorry, no trimmer or potentiometer on inside printed circuit.
The external contrast knob is already at maximum.

Thanks for your suggestion

Giorgio

Apple II and Apple III forever !!!