I'd say that you should send it back again, and again, until they get it right. That is if you have the time, of course.
Oh, and tell them to fix the hinge.
I'm a fairly new owner of a Acer 302XMI, and aft
I'm a fairly new owner of a Acer 302XMI, and after some troubles with the Acer repair centre in Germany I have started to consider if I exspect too mutch off the digitizer (and perhaps Acer in general).
My question is:
Is it reasonable to exspect that the digitizer is linear at the whole screen, or is it normal with 0,5 cm variations of the calibration ?
And the short story to this is:
When I'm using the 302XMI in tablet mode, I started using it with the hinge to the right side (well ... thats the way it started the first time :-) - with the benefit that the CD drive was on the top of the TPC, and on the negative side that the pen is on the lower left side.
The only problem I have with this, is that the right side (the side with the hinge) has a calibration problem. To make a straight line, i have to move the pen in a curve. The calibration is correct at the hinge, but at top and bottom side it's out of adjustment with aprx. 0,5 cm at the corners.
And no - it dosn't matter if i use the tablet the other way around. The calibration problem is the same even in Notebook mode.
And several recalibrations dosn't help. (Just wish i had acces to the 81 point calibration procedure)
So after having the TPC for 3 days, it was sent back to repair (DOA) - but repaired and returned with a new digitizer - and the same calibration problem .... besides from scratches and a broken hinge cap.
Therefore my question - is it just too mutch to exspect that the digitizer is linear all over the screen - just the same way as when i use my PDA.
I'd say that you should send it back again, and again, until they get it right. That is if you have the time, of course.
Oh, and tell them to fix the hinge.
Well, the digitizer problem is different from the pda, because pda is contact related. Tablet isn't. What I have noticed is that it depends on how you hold pen. Plus you can 'train' it by compensating where you put the pen on the cross vs the error in the corners.
qcomdrj I'm aware of that the PDA uses a touch display, and that the TPC uses at EMR sensitive digitizer. The EMR sensitive display is the reason for that the TPC calibration is there to compensate for the way you hold the pen. The calibration very well described here:
http://channel9.msdn.com/ShowPost.aspx?PostID=8549#8549
Until now i have only seen that variations in the way you hold the pen, results in 1-2mm offset between where you point and where the cursor is.
And I don't belive that it explains why i can't make a straight line, without moving the pen in a curve.
I'll say you're entitled to expect that the goods are fit for the purpose advertised - but German rules may be different from mine, British. Some imprecision in cursor location may be acceptable for everyday computing, but if the retailer knows that you want an electronic draughtsman's board, and they offer you the Acer Tablet on that basis, that higher standard applies.quote:Originally posted by Larsson
I'm a fairly new owner of a Acer 302XMI, and after some troubles with the Acer repair centre in Germany I have started to consider if I exspect too mutch off the digitizer (and perhaps Acer in general).
My question is:
Is it reasonable to exspect that the digitizer is linear at the whole screen, or is it normal with 0,5 cm variations of the calibration ?
And the short story to this is:
When I'm using the 302XMI in tablet mode, I started using it with the hinge to the right side (well ... thats the way it started the first time :-) - with the benefit that the CD drive was on the top of the TPC, and on the negative side that the pen is on the lower left side.
The only problem I have with this, is that the right side (the side with the hinge) has a calibration problem. To make a straight line, i have to move the pen in a curve. The calibration is correct at the hinge, but at top and bottom side it's out of adjustment with aprx. 0,5 cm at the corners.
And no - it dosn't matter if i use the tablet the other way around. The calibration problem is the same even in Notebook mode.
And several recalibrations dosn't help. (Just wish i had acces to the 81 point calibration procedure)
So after having the TPC for 3 days, it was sent back to repair (DOA) - but repaired and returned with a new digitizer - and the same calibration problem .... besides from scratches and a broken hinge cap.
Therefore my question - is it just too mutch to exspect that the digitizer is linear all over the screen - just the same way as when i use my PDA.
But if you reject the Acer Tablet, then you have to find something better.
My Acer 302 is at home, I'll test it later if I remember, but this older, much slower Compaq TC1000 makes a fairly good job in Paint of straight lines on a ruler edge. Generally, a digitiser with an unpowered pen (the TC1000 uses a battery, one I'd never seen before - AAAA, quadruple) and with the comp lication of a visible screen to draw on, is taking on a harder job than a non-display, separate pen board. You could still use one of those!
If using a ruler isn't your specific need, maybe you would have a better experience with an alternate cursor icon. I uploaded some cursors into discussion thread http://www.tabletpcbuzz.com/forum/to...TOPIC_ID=19190 ; my idea is to show you (well, to show me) clearly exactly where the computer thinks the pen is. My pen often isn't in contact with the screen anyway - I use a separate clicking device with my other hand. That's an RSI thing.
Well ... had the 302XMI send to repair once again, for the following reasons:
1. Hinge broken by last repair
2. Scratches made by last repair
3. The problem with digitzer - 5mm offset & aprx. 10mm fra bottom of screen pen movement accelerates. Abd the problem is only at the side with the hinge.
And the result ??
1. Hinge replaced
2. Scratches ignored
3. Digitizer ignored - repair noted that this was within tolerances.
So .. right now i'm considering what to do next.
As it is now, the part of the screen where the hinge, is can't be used with the pen. I use the pen a lot, as i have some troubles with my hand. But the combination of the offset & acceleration area makes it difficult evnen to select a program from the taskbar - when in notebook mode.
In slate mode I am forced to use the 302XMI with the hinge to the right - and having problems using File menus in programs.
And I dont like to have the heat from the CPU blown towards me.
But i would like to know what the tolerances is for the digitizer.
So .. I guess i try to get this from Acer in written - has anybody seen any specifications for the digitizer fra Acer ??
....and perhaps ask Microsoft what specification/quality the digitizer has to fullfill - to be able to be called a Tablet PC.
In any case - i got the 302XMI back Thursday, and Acer are called tomorrow to pick it up again. At least I won't accept scratches made from the repair center.
And yes ... it was all written on a noted when send to service.
Two months now ... and 3 times to services.
I never buy an Acer again.
I'm afraid I don't really know what to expect from Tablet digitisers (not owning one yet), but having read alot of reviews to try and pick one out I did find mention of an accuracy problem at the edges on some models.
I think the Toshiba M200 got around this with a wide boarder, but that really doesn't help in the case of a tablet that isn't working properly and is already owned.
Best I could advise is send it back with a note saying, "Thanks but no thanks." and expressing how the inept after sales and technical support you have experienced have lead you to return the product.
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