Succes!! Fully finished build!http://www.youtube.com/watch?v=Rs-vZkcxYc4
-great IPS panel, 1400x1050 pixels
-mostly inside original Intuos 3 package
Original first post:
Massive text warning
Will try to compensate with some more photos later, are on another camera.
After reading a lot of the topics on bongofish.co.uk we decided to build one of these things for fun and actual use of course.
Several topics, especially the Wei tab made us decide to put the whole thing inside the Intuos itself. Certainly because of the esthetics of the whole thing. So Intuos 3 A4 was going to be the base, we already have one (5 years old?) but that one is in constant use so a newer one was needed.
So to start with the parts:
-We found a barely used Intuos 3 A4 for €180,- (1.5 years old)
A lcd panel was a bit more troublesome.
A lot of the topics discuss panels but we wanted to have it as cheap as possible since we didn't want to make a big a sacrifice to the silicon gods when the whole thing went off the deep end.
After some searching on a national 2ndhand website a used panel from a IBM T60 laptop was found which should do the trick, for about 80 euros.
-This is an 15" S-IPS 1400x1050 LP150E05-A2K1 panel.
Now the controller, which we found on the E-bay site of nyjtouch.
They helped us finding the correct one and although they could't guarantee us it would work since they didn't have the panel itself to test they thought it would work. We ordered the whole package, a DVI / VGA lvds controller, a ccfl inverter and some extra cables.
-R.RM5451 LCD Controller Board Kit with DVI for $39 including shipping.
China --> Netherlands by China Registered Airmail, ordered 10th of November and arrived 19th.
So this puts the total cost so far to: 300 euros
[ Attachment: You are not allowed to view attachments ] The screen hooked up to controller.
First we took the Intuos 3 apart.
The screws didn't pose any problem, but this was only the beginning. The whole thing is kept together with annoying amounts of double sided tape. This took quite some time to remove properly without ripping PCBs apart or some other form of irreversible damage.
What worked best for us to start somewhere, where the tape was most visible and use a small flathead screwdriver to pry the pieces loose. Then the large green sensor PCB was still stuck to the casing with two L shaped sticky foam pieces, a long sharp blade took care of that. We did tear one piece of copper foil which seems to be used to connect the different ground-planes of the PCBs together. Should be easy to reconnect later.
What we noticed was the Intuos3 we bought differs a bit from the one that was already in use.
The difference is that with the one we bought there is a small "gutter" so to speak in the top layer where the grey protective sheet is taped to the plastic top cover. Probably to make the overall solution of the gray protective sheet stuck to the top plastic layer more smooth. So the top layer isn't entirely smooth compared to the old one. May swap the casing with the "older" Intuos 3 A4 to counter it.
Now the Intuos was in pieces it was time to turn to the LCD.
We did a small test with the LCD completely assembled and putting it atop of the Intuos to see how much disassembly was needed.
At tabledmod.com this seems to be the approach to take. We noticed that a large piece of covering metal at the side of the CFFL was completely blocking the signal so that had to go. Also the PCB for the row and column drivers and LVDS signals was blocking the signals so that needed to be folded outwards. No jitter noticed what so ever, but that is understandable since nothing on the LCD was connected anyway.
This all meant we needed to remove the metal bezel and remove all the tape surrounding the panel.
Since we were scared as hell to break anything we took our time but as with many things over time we got more excited.... and lost some of our restrain and went too fast. This led to our first sacrifice to the silicon gods by breaking the CCFL. (CRAP!!!!)
Some searching online and we found a replacement including cables etc in Germany (www.ccfl-roehre.de
) . 30 euros including shipping (DOH!) (arrived 23rd) On a side note, we found a cheaper replacement in the UK later on. (www.backlightweb.co.uk
) and in the US they seem cheaper but with all the shipping cost and delay it didn't really appeal to us.
We wanted to keep the metal bezel part that housed the CCFL for some support and reducing the risk to break it again.
We cut of the excess metal and used a sander on it to make it all a bit more smooth.
[ Attachment: You are not allowed to view attachments ] The internals of the Intuos 3 spread out, after quite some effort of getting it apart.
We hooked the whole thing up and surprise surprise the thing crapped out on us. It seems the controller is configured for the incorrect resolution, although we explicitly e-mailed and got confirmed it would be configured for 1400x1050. Nyjtouch has been helpfull as to trying to figure out what went wrong but with the time difference it is a slow process.
The panel gets detected as a 1920x1200 screen, some parts of the screen overlap and some parts of the screen are missing. With some driver options in Linux it is relatively simple to override the EDID that gets detected with one of your own. We did that but no result....
Without the CCFL there is almost no jitter at all which is a good thing, but without proper graphics alignment it is only a small up-side compared to the controller crap at the moment. We have ordered the programmer and another controller so we can do the programming ourselves.
[ Attachment: You are not allowed to view attachments ] LCD still works, but the controller is programmed wrong. Here we were still waiting for the new CCFL.
With the CCFL hooked up and everything open and the grounds still severed we got some succes, but writing the standard " yay, it works" is a bit tough with a wrongly programmed controller.. With the CCFL it seems we lost some 4 pixel rows somewhere on the edge of the panel
Not really that bad, it is close to the edge. If we drive the LCD panel at the wrong resolution, jitter is really really strong. At the native resolution it is promising.
So for now, we'll have to wait for the China mail
-Intuos 3 A4 taken apart, still works
-IPS panel works
-New CCFL works
-Not to bad jitter, without shielding efforts
-Controller doesn't match resolution of panel
-Killed our first CCFL
-IPS panel lost 4 pixel rows
-Some jitter so far
-Waiting for new controller
With the new controller we can do serious testing, start shielding and put it all back together, incl probably this backside of a nice Samsung LCD screen. Fits rather well with the Intuos.
[ Attachment: You are not allowed to view attachments ]
Backside that mounts well to the backside of the Intuos and will hold the controller etc.