CF-18 Touchpanel Issues

The Touchpanel seems to work fine with no deadspots, however the axis are off.
Moving the stylus from left to right moves the mouse down, and moving the stylus from top to bottom moves the mouse from left to right.

Is there a way to change the axis on this? or does anyone know what could be the cause of this issue?

 

Touch panel (touchscreen) or touchpad?
I don't believe touch panel can work like that.
Touchpad - yes. Rotate the screen by front panel buttons or display rotation tool or windows display settings. It's a quick permanent fix )

 

Touchpanel (The touchpad input is fine and works as it should)

If I rotate the screen the axis follows the rotation and is still the same. I have replaced the little board that connected the touchpanel to the motherboard and this has made no difference.

Edit: I could video it and upload it as a video to imgur or something if you would like to see.

 

That would be great. Give us a better idea what is going on

 

Not sure if were allowed to post links, but its for the greater good.

 

was that a screwdriver ?
hmmm ...
did you try running the calibration tool while the display position is "normal" ?

 

Wow! It's a cool feature! ))

 

Calibration tool gives the : "Parameter Error, Please Input Again".

I can neither confirm nor deny the use of a screwdriver as a stylus.
I have also tried installing the touchpanel upside down and it still has the same issue.

 

touch panel ribbon installed upside down?

 

That would do it. CF-18/19 the cable is flipped like a back-lit keyboard.

Running Windows 7?

We need the model number and the operating system...W7, XP, Tablet ?

Maybe this will speed it up.
Assuming Windows 7.
Tap menu (windows) key.
Type calib.... look for calibration.
In the pop-up there is a reset check box. Check and re-boot.

What the above does is reset touchscreen settings in the registry.

Again do menu...calib....calibrate. Be sure to save.

Again this is assuming W7. If another program then we need to know.

 

Running Windows XP currently, these machines are rarely connected to the internet and no browsing is done.
Model Number is: CF-18 NHHZXBM

Just trying the ribbon the other way around to see if this helps.

 

That's different.

 

Flipping the ribbon did not help at all

 

Open up a drawing program.
Microsoft Paint maybe

Try drawing in it and see what happens.

Did you install Windows using a recovery set?

 

Same issue with the touchpanel happens when I draw in paint, its the same input so not sure how that would narrow it down to anything?

It was working fine with the previous touchpanel, I dont get why this panel is acting so strange.

Windows was installed prior to the touchpanel being replaced.

 

What mk is the CF18?
What mk did the touchpanel come from?
Did it come from a CF19 maybe?


Ok I missed that this started with a panel change.
I think what is going on is the same type of issue I had with a CF31 touchpad.
The mk2 and later CF31 use a different brand of touchpad. It looks the same except the ribbon cable is a different color.
The touchpad and touchpanel both have a 4 wire connection. 2 of those are left-right and 2 are up-down. X-Y axis to be semi technical.
Anyway, the 2 different brands while using the same looking and size connector, use OPPOSITE polarity. Left becomes right and up becomes down. I made a custom pcb to correct the polarity.


Going by memory on the 31 MK1. Just to give you an idea of what is probably happening on your CF18.
1 - 4 and 2-3 are reversed on the "new" panel
1-R-L POSITIVE
2-U-D NEGATIVE
3-U-D POSITIVE
4 -R-L NEGATIVE

31 mk2 and later
1-R-L NEGATIVE
2-U-D POSITIVE
3-U-D NEGATIVE
4 -R-L POSITIVE

 

Im not really sure what model it came from, it was purchased from the following link:
http://www.ebay.co.uk/itm/10-4-scre...395306?hash=item3ab8321daa:g:CcAAAOSwstxVF17Y

It says CF-18 but now you say that it could be a CF-19, but from what I remember doesnt the CF-19 screen frame have a speaker built in?

You make a good point with the polarities, could I potentially splice the red cables coming from the pcb and thus resolve the problem?

 

the polarity change is on the flat cable going from the touchpanel to the tiny pcb inside the lid.

 

Sure, but theres is 6 cables, im assuming:
Power +
Power -
U
D
L
R

or something like that

 

I don't know the exact polarity.
I was just showing an example of the possibilities.

Here is the probably reversed cable. It comes directly off the panel. No real wires.
Maybe swapping the pcb this plugs into would work?

 

Same, just as a guess. I dont even know if the red wires coming from the pcb would have the signals isolated.

I understand the cable you mean, I have already swapped the PCB out.

 

There are different part numbers for the touch screen panel for different mks.

I am guessing that it is the wrong panel.

Let me do some more research

Aftermarket panels are listed as the same for all CF 18 and CF 19.
This is getting odd.

 

Here is the illustration from a manual.
Notice exactly how that flat cable is folded only once.
Make sure yours is identical



Here is a great video. It's for a 19, but the 18 should be the same.

Around 17 minutes it gets to the point you need.
The pins on that flat cable should be pointing down.

 

yeah ...
maybe the panel is flipped , but the flat cable would be on the wrong side (left to right) .
have you tried to do the recalibration sequence ?
it may be possible to wind up with what you are experiencing if the range of inputs was broad enough .
i can't recall the exact sequence of the points but one would have to "tell" the calibration program the "wrong" point .
(at any rate , the center points should roughly be correct)

 

Once your happy with it tape the cable in place. I have fixed several 19's with a piece of tape.