LCDInfo.com

Hello,
' laptop ' got an old T1200 given by Toshiba. Functioned still however it was missing that to floppy drive. Thus I the part apart-built and a rather good LC display discovered. It is a TOSHIBA TLX-1342-G3B HTTP:members.chello.RKmikejuen/TLX-1342-G3B/
The display has 15 Poligen a connection, whereby 4 PIN's GND are warscheinlich (have it already connected).

The control functions then surely similarly a character display. However the command table is the same (display initialization, Mode and so)?The rather good display is rather old and rather useless, at least without CONTROLLERS.
You can imagine the thing like a monitor, only only the pixels indicates which it continuously sent gets.
Schau times on the Main board after, which for a IC beside the connection sits, perhaps laest itself that use.

The display was SW, Gray tones, Colored?

Thus, you think there belonged still another CONTROLLER in addition...
On the display plate are some larger IC's, but those can be also only to the LC control. Is 3x T7900 and 8x T7778A. Otherwise still smaller IC's is as for example a potential transformer
drauf.
In the diagram HTTP:members.chello.RKmikejuen/TLX-1342-G3B/mainboard_a.jpg one sees the Main board of the T1200. The plug to the display is marks it is also marked where this then
gehn. All 4 goes to 2 IC's (both are 40H008F).
Now still the signal data, on the display connections (seen from the display) on connection the 2
to 5 drauf is:
2: Clock rectangle with 500Hz and 5V 3: Clock Dirakimpulse with 50Hz 5V 4: undefined 50Hz clock 5: 2MHz sine of 1V to 4V (looks out like a Clock) can supply if
necessarily pictures of the Oszi.
To a few lines from the display go also to the processor, (that is where the OKI stands above) HTTP:www.okisemi.com/datadocs/doc narrowmsm80c86a_10rs.pdf.

The part is already really age-old. I do not have ever a 8086er laptop seen...
You should waive that better completely, the Dinger gives it realtiv rarely.
The 8086 is the CCU.
The TC8565 is the floppy disk drive CONTROLLER, the TC8570 of the RS232 CONTROLLERS. The SED9420 heads for the floppy disk drive.
The 50Hz clock is the beginning of a new picture.
The 500Hz clock could be the beginning of a new line, thus 100Zeilen are transferred.
With 2MHz the graphic data are transmitted (1-4bit at the same time). Warscheinlich is divided the display into two halves, the simultaneous to be headed for.
The dissolution will be with for instance 400x200.

From where do the whole lines come by the 40H008 run? The two pins in diem picture below red in each case the marked, are the entrances. These would have to go to the LCD CONTROLLER.

Thus completely to waive goes no longer completely. 1. always that was missing to floppy ones and 2. the housing straight lies in the garbage. But now, where I with the clock point, I can head for the thing in the best way with a processor. I porbiers in the next days times... Thanks for the reference! The 2MHz clock will be then surely the clock for the drivers or sowas.

Who still different one refers to has, gladly!

I believe you understand the control not completely!
With the 2MHz clock the diagram data were pushed in serially pushed in
(1Pixel per clock) if a whole line, then a Latch of impulses (500Hz clock) with that comes the whole
diagram data for a line to be taken over and stored.
If you again at the 1. Line arrived, then the 50Hz impulse comes, so that the display point, where pixel is 1.

Schau times up HTTP:wwwbode.cs.tum.edu/~acher/projects.HTML

The timing is better there avowed.
But procure to you times better a data sheet to the display. The -17V only puts on, if the clock runs, otherwise the display gets broken!

Thanks, jetz isses already more clearly. Then become I times schaun, as the whole run.
Thus in the 2MHz clock I must a pixel clean-push (5V = black, 0V knows oer in such a way).
Data sheet gibts there unfortunately keins in the net