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Possible to remove LCD Display?

New MessagePossible to remove LCD Display? (modified 0 times) tadr
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Ok - Well I've read through all the messages in this forum, and scoured the net for more information on this Compaq IA-1... and i must say the results have been rather dissapointing. Too bad the thing doesn't just have an ide connector...

Anyway, it sounds like the only way to get an OS with any usability is by installign to a flash card and running from there - which isn't a viable solution if you need any type of storage (I'm lookign to make an mp3 player... for my car ) Anyway, the only other obvious solution I could think of would be to install the OS to the CF card and use an external USB storage device (pretty expensive though...) Has anyone tried this? Is the USB controller a standard OHCI chip? If so, once say, Win 98, is running on the CF, the USB ports should be usable as normal... This is certainly a possibility.


The other thing I wanted to bring up, was the fact that this is one cheap price for a 10" LCD screen. Has anyone considered removing the screen and interfacing it to work with a regular video card in another comp? Any ideas what this would involve? Does anyone have pictures of the connections/wires coming from the display panel? Is this even possible? I think this would be my ideal solution, as a 266 mhz computer can be built for WAY less than any of the solutions described here(microdrive, etc) albeit the larger size factor... anyway, I'm rambling. Reply with any feedback - I am very interested.

-tad

11-09-2001 08:38:41

New MessageRE:Possible to remove LCD Display? (modified 0 times) ranman
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Yes, there isn't much information on the net about the IA-1. Most of the info is here. It would be great if it had an IDE, but at least the compact flash is treated as a full IDE device.

Yes, under win98, it shows 2 usb controllers, one for each set of 2 usb ports. All usb ports seem to produce enough power to support anything I have plugged in.

I have win98 installed on a 340mb microdrive - it has no problem reading or writing to it.

I also have external USB storage (a hitachi 3.2gig notebook drive and usb HD case from compgeeks) that works well. It plays MP3s off the drive no problem. However, trying to copy large files to it seems to cause a "write error". No problem doing the same thing on my windows me box to the same hd and case. Copying large files from the USB HD works fine, and even running office 97 from it runs fine.

I also have a logitech iFeel mouse, and the linksys usb adapter plugged in. These with the usb hd all work fully and at the same time.

I have also tried:

usb keyboard
sandisk usb compact flash reader
wintv usb
logitech usb web cam pro 3000

It had no problem powering the above usb devices, of course, though, for the latter two, it was pretty slow.

Also, you can overclock the processor and you can replace it without modifications to the board as long as you get a 1.9v processor that doesn't mind getting to hot. A k6-2 333 worked in mine - the IA-1 still saw it as a 266, but by using softfsb, you can change the fsb, but not the multiplier.


ranman

11-09-2001 09:33:30

New MessageRE:Possible to remove LCD Display? (modified 0 times) tadr
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Thanks for the info ranman, very hepful. Any idea/input about possibly detaching the screen?
11-09-2001 09:55:04

New MessageRE:Possible to remove LCD Display? (modified 0 times) Kudzu
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I also have external USB storage (a hitachi 3.2gig notebook drive and usb HD case from compgeeks) that works well. It plays MP3s off the drive no problem. However, trying to copy large files to it seems to cause a "write error". No problem doing the same thing on my windows me box to the same hd and case. Copying large files from the USB HD works fine, and even running office 97 from it runs fine.

The IA-1 uses the same chipset as the Iopener, and the transfer errors resulting from the Via chipset's problems might be fixed using the same method: a patch. Has anyone managed to extract a copy of the bios?

On another note, since the IO and IA do use some of the same components, the search engine on the Iopener messageboard might help provide answers to some of your questions, if you can't find them here.

Kudzu

11-10-2001 01:52:51

New MessageRE:Possible to remove LCD Display? (modified 0 times) ranman
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Kudzu,
I had been following some of the posts over there that talked about dealing with that specific issue, but never tried any of the suggestions. Some people noted improvements, others didn't. And the problems I notice are exactly what they described over there.

As far as extracting a copy of the bios, I don't think anyone has done it yet. Sisoft says the bios is by compaq. Who would have made it for them? Award or themselves? Any ideas?

I am ecstatic to see all this new interest in the IA-1. Being here from day 1 of this board, it is great to see several posts per day. It used to be that it would be days/weeks without a post. It would be great if we could get the same knowledge/hacking level that is seen over on the i-opener and audrey.


ranman

11-10-2001 12:11:28

New MessageRE:Possible to remove LCD Display? (modified 0 times) Easystreet
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Still no response to the remove the display question. Is it possible and where to find info?
12-15-2001 10:42:28

New MessageRE:Possible to remove LCD Display? (modified 0 times) diepiapaopolopo
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I've taken the thing completely apart and even removed the LCD from its surrounding plastic enclosure. It has some kind of funky connector that I had never seen before. (Then again, I've never seen the bare connector for any other LCD, so it may not be that strange at all...) I didn't think to take pictures. I will if I take it apart again.
12-15-2001 23:48:05

New MessageRE:Possible to remove LCD Display? (modified 0 times) nTrfAce
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Anything's possible. Not all things are practical.

If you want to remote the display a handfull of feet from the MSN Companion, you should be able to do so by hacking a multi-conductor cable inline between the base and the display. You'll be looking at 30 or so conductors for the LCD signalling and another 12 or so for the backlight/contrast/brightness/LEDs Add in three for the mike, and two more if you feel like moving the speaker from the base. Digikey has some round cable that is just jacketed flat cable like IDE/floppy cable. It would be a good start, or you could just use flat cable and later roll it yourself. I'd expect that 10' would be safe, and I would expect things to stop working or get noisy at 20' and above. So the cost would be a few bucks for 50 conductor flat cable and an evening of soldering and heat shrinking. Either crack your device open or look carefully at the pictures at http://www.linux-hacker.net/ipaq/ Look at motherboardtop.jpg, far right side. The two tan connectors, lower is about 2x15, the upper 1x about 12 conections. Those are the LCD, and the mic and speaker come from the lower left side, right near the audio components.

If you want to make the LCD from MSN companion into an external LCD screen for a standard video card or an LCD video card, you'll very likley spend much more effort to do so than it would cost to buy an LCD monitor. (and all this work is for an 800x600 display, not 1024x768) If you're an engineer who's already used to ordering and prototyping your own devices, and doing it for fun you might break even. The hours put in would be relaxation. If you're a lay person trying to save money you're pretty far out of luck starting here.

If the above two scenarios didn't sufficently answer your question please re-submit it with more details. I'm guessing you are wondering if there's a high density DB-15 between the LCD and the base, and the answer is no. This won't plug into a standard VGA card. It's a raw LCD panel. You'd have to be a bored, talented hacker to go get the data sheet for the LCD panel and interface chips and start going at re-building the interface, esp starting with an analog VGA rather than a digital LCD video card.

--nTrfAce

12-16-2001 15:56:25

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