On the wire for the receiver, you know how one of the wires is red? Dosen't this usually represent wire 1? Did you plug that wire into pin 1? You may have to unplug the wire from the circuit board and turn it around
On the wire for the receiver, you know how one of the wires is red? Dosen't this usually represent wire 1? Did you plug that wire into pin 1? You may have to unplug the wire from the circuit board and turn it around
Could someone help me here, I loaded XP on it and when it boots to windows I lose my video signal with both composite and s-video, how did you guys get this to work? Do I need to change something in the BIOS?
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It looks like pin 1 (red wire) as well as at least pins 2 & 3, don't connect to anything on the receiver PCB, just traces that lead to three vias to the other side of board, where there are unused solder pads marked "IR2". I doubt that the connector should be flipped over on the receiver end, since the ribbon cable comes out the side of connector.
Since I have the Celeron 700 anyway, i may just keep my board, pull the receiver pin-bracket off so i can better see where the other traces lead, post any further pins in a more logical arrangement. If anyone can find the spec sheet for this holtek controller or can verify that the sheet previously linked to is "close enough", and/or determine what port this receiver is set to use, it could be helpful.
I haven't tested mine on a tv yet, but I did notice that the NTSC/PAL pin was set to PAL by default, so I changed it.
I have got mine up and running, I am using composite out currently to my tv. You need to get the Full driver package from ECS to get the tv out to work. it is here, thanks to Allegro. Text is horrid to try and read at 800 by 600, I turned it down to 640 by 480 and it was a little better. S-Video may be better, but I haven't tried it yet. XP found an unkown PCI device and Multimedia device. It can't find drivers for these. So if there are driver for the IR keyboard I maybe able to get it to work. I tried playing a DVD with a 700 celeron, it skips a lot. I have the mb in a Netvista case. I think I may transfer it over to a MicroATX case, but I doubt it since I already have a dvd player. I done with this for now, off to bed. Will try more tomorrow night
I put in a Hollywood magic DVD decoder card in mine. Used a cheap celeron 566 i had, You can usually find these decoder cards cheap, and they look great on the TV.
- Aug 11, 2001
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Another chapter in the IR receiver story:
I traced the pins back to the controller chip, referenced them to the chip's pin-functions, and then out through the ribbon cable. The following is an exerpt from this very rough work in progress.
DOH! My ascii art loses something in the translation... see linked text
I traced the pins back to the controller chip, referenced them to the chip's pin-functions, and then out through the ribbon cable. The following is an exerpt from this very rough work in progress.
DOH! My ascii art loses something in the translation... see linked text
XP has found an unknown PCI device and multimedia device. I don't know if its detecting the IRDA keyboard or not, XP doesn't have any drivers for this mysterious device. I do not have anything in the PCI slot. I already changed the BIOS to IRDA settings.
Mindless1, are you trying to tell us that it doesn't seem feasible that this thing will ever work???
That sounds strangely familiar to something I said to P2You, and this was his reply, from one of my previous posts:
I had another customer who couldn't get this connector installed correctly. After he plugged the connector in just like you and I have, it worked. He was using WinXP, though. Also, the connector ribbon cable does not match up with the holes in the connector, but, the wires inside do match the holes correctly. Please let me know if any of this helps. Thanks!
Now, I'm no EE (oh wait, yes I am), but the wires match up inside the connector ?? So, I'm the ***hole! I think that P2You sent us a circuit board that very well could be out of anything that has ever had IR in it, and there is no way in hell it is going to work.
I commend your work on the pin mapping. I was trying the same thing last night, but was having a hard time figuring out where some of the pins on the Holtek went to. I still want to order an IR transceiver, I just refused to pay the $5 handling charge that digikey wants on a $3 part (yet I'll pay $15 for a six-pack of beer...... how ironic). I need some other parts for a project, so I'll probably do it before long.
That sounds strangely familiar to something I said to P2You, and this was his reply, from one of my previous posts:
I had another customer who couldn't get this connector installed correctly. After he plugged the connector in just like you and I have, it worked. He was using WinXP, though. Also, the connector ribbon cable does not match up with the holes in the connector, but, the wires inside do match the holes correctly. Please let me know if any of this helps. Thanks!
Now, I'm no EE (oh wait, yes I am), but the wires match up inside the connector ?? So, I'm the ***hole! I think that P2You sent us a circuit board that very well could be out of anything that has ever had IR in it, and there is no way in hell it is going to work.
I commend your work on the pin mapping. I was trying the same thing last night, but was having a hard time figuring out where some of the pins on the Holtek went to. I still want to order an IR transceiver, I just refused to pay the $5 handling charge that digikey wants on a $3 part (yet I'll pay $15 for a six-pack of beer...... how ironic). I need some other parts for a project, so I'll probably do it before long.
It would be nice if P2Y would give us a hand in this, if they claim that they have customers who have it working. I just wonder if everyone else who has ordered this of the original ~250, now down to 129 mb owners have this problem. I am sre not all of them have used the keyboard, but someone has to have it working.
I sent Wayne over at Package2you an e-mail asking him to come to this forum and see the discussion on this. It would be much easier talking in one spot rather than doing this all one on one over email only to have it pasted here anyways.
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I don't know if it will ever work, right now I wouldn't hold my breath or EXPECT to get it working, but the larger part of the problem (as always) is lack of information)... the big questions are:
1) Does this IR receiver (i think receiver, not transceiver because it doesn't appear to send to keyboard) even belong, work, with the keyboard? I'm not so sure any old receiver would work even for basic keyboard function.
2) Ignoring the lack of proper header on the motherboard, what interface does it use, and does it need two interfaces for both keyboard and mouse, or just one? I suspect two, but will be returning to the Parex website shortly to reread that keyboard page.
I think it's most likely that this receiver uses both serial AND PS/2, as do the majority of other IR keyboards that I've seen while searching for more info about this one.
Frankly, i don't have the tools, training, or motivation to spend much more time on this keyboard, i may pop open the keyboard itself to see if there are any similarities in componentry with the receiver, try and guess whether the two are "mates", and perhaps I'll try hooking up the receiver data lines to a PS/2 port and see if that does any good, but I don't see any way to find a clock line from the receiver, or even know if the clock signal is absolutely essential in a one-way serial PS/2 connection, I had thought that the clock signal's only purpose was to stop the device from transmitting when the host was transmitting data back to it (by shutting OFF the clock signal).
- Aug 11, 2001
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Hmmmmmm....
For the time being, forget *almost* everything i previously posted about the receiver, pinouts.
I just poped open the keyboard, and inside is Holtek chip 48R50-A-0, which makes me doubt the appropriateness of the Holtek spec sheet i was using to get the pinouts.
The keyboard is pretty uninteresting inside, just standard fare except for the circuit board (250K d/l) right behind that infrared window. Since these two Holtek chips appear to be a matched pair, I do suspect that this IS the correct receiver for this keyboard, but in some bizarre OEM configuration.
I further think that the unused connection points on the receiver PCB are for indicator LED connection, for IR transmission, Caps Lock, and Num Lock indicators (or similar). However, they won't work "as is" to drive LEDs because the SMD resistor strip isn't in place. If someone wanted to use those positions to attach LEDs (i just might do that if i EVER get this @#$%#@$@$@$$#$@ keyboard working), it would be easier to just bridge the entire area that would hold the SMD resistor strip with a blob osf solder, then run from that blob a single resistor (I forget the value needed, maybe 100 Ohm) is on Holtek's website somewhere) and tie one of the leads from each/all LEDs used to a central point, to the resistor you add... if you know basic electronics you'll see what i mean now that it's apparent that these are to drive LEDS, I may eventually go into more detail about this but it seems pretty low-priority at the moment (or I could be wrong again, heh, just ignore me while i talk to myself and eventually i may have some solution to all of this)
For the time being, forget *almost* everything i previously posted about the receiver, pinouts.
I just poped open the keyboard, and inside is Holtek chip 48R50-A-0, which makes me doubt the appropriateness of the Holtek spec sheet i was using to get the pinouts.
The keyboard is pretty uninteresting inside, just standard fare except for the circuit board (250K d/l) right behind that infrared window. Since these two Holtek chips appear to be a matched pair, I do suspect that this IS the correct receiver for this keyboard, but in some bizarre OEM configuration.
I further think that the unused connection points on the receiver PCB are for indicator LED connection, for IR transmission, Caps Lock, and Num Lock indicators (or similar). However, they won't work "as is" to drive LEDs because the SMD resistor strip isn't in place. If someone wanted to use those positions to attach LEDs (i just might do that if i EVER get this @#$%#@$@$@$$#$@ keyboard working), it would be easier to just bridge the entire area that would hold the SMD resistor strip with a blob osf solder, then run from that blob a single resistor (I forget the value needed, maybe 100 Ohm) is on Holtek's website somewhere) and tie one of the leads from each/all LEDs used to a central point, to the resistor you add... if you know basic electronics you'll see what i mean now that it's apparent that these are to drive LEDS, I may eventually go into more detail about this but it seems pretty low-priority at the moment (or I could be wrong again, heh, just ignore me while i talk to myself and eventually i may have some solution to all of this)
Mindless1, your last post made me think. I would love to get my hands on one of the ps/2 receivers that is actually supposed to be with this keyboard and see what it's guts look like, cuz like you said, they are probably a matched pair. I wonder if the circuit board they sent us is just the guts out of one of those ps/2 receivers, slightly modified with 4 green wires that could have been soldered better by a blind 3 year old.
Windows XP now recognizes the IRDA keyboard apparently and it says its working properly, although its not working. It has a driver for the device dated 7/2001
EDIT: I am changing the speed to try and see if that works to get this thing working. Do you think I would have to unplug the USB keyboard so there isn't any interference between the two?
EDIT: Changing speed did nothing. I am trying to uninstall and seeing if XP will recognize it at startup
EDIT: I am changing the speed to try and see if that works to get this thing working. Do you think I would have to unplug the USB keyboard so there isn't any interference between the two?
EDIT: Changing speed did nothing. I am trying to uninstall and seeing if XP will recognize it at startup
I wouldn't recommend getting it unless its only for the mb, we cannot get the IRDA keyboard to work at all.
Has anybody written to P2You and told them they want their money back?? I mean full money back, shipping and everything, due to the fact that they sold us a product that does not work. I don't care if they say they got it working, cuz I think they are full of $***. We have more than a handful of computer literate people here that can't get the damn thing working, after trying everything they have told us and more, even going so far as to map out the pins and looking into rebuilding the thing.
I was thinking more about getting a IR transceiver, but as has already been pointed out, the receiver and transmitter are probably matched pair, and I don't think this thing is standard IrDA.
As has been noted before, don't buy this thing with hopes of the IR keyboard working.
I was thinking more about getting a IR transceiver, but as has already been pointed out, the receiver and transmitter are probably matched pair, and I don't think this thing is standard IrDA.
As has been noted before, don't buy this thing with hopes of the IR keyboard working.
I wrote P2Y last night detailing my attempts and everyone elses to get the IR keyboard to work. I also included the address tot his thread. I told them I wanted to know how they got it working, how many customers got it working, and a detailed description on how to go about getting it to work. If they can't do this I will most likely be asking for a refund. I would rather by take the money and put it towards a Shuttle system if this is the case.
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