Inside the OQO 01

[Guest]

[Picasso]

More pictures can be found here. http://www.fearme.com/adotnet/Oqo_inside/index4.html
These are of the OQO 01. On the 01+ there is no notch in the board for the wifi connector.

[3vw]

Thanx for sharing & posting the pics. 

[NYguy]

Thanx for sharing & posting the pics. 

Picasso... 3vw.... So this where you guys hanging out. I just stumbled across this site. Not really much info like the other site but I will stay around. Maybe I send some traffic over this way.

[IZodiac]

good pics. im new here. they allowed me to partially take apart my oqo to remove some foam from the antennas and to fix a bulge in the back. i saw the blue thing. could any of you tell me what that is?

[Picasso]

The blue part is a rubber surround for the hard drive. It helps protect it from G force and the bumps and grinds of daily use.

[2disbetter]

SO do we think upgrading the ram is possible?

[Picasso]

No upgrades of ram for the 01.

The maxx the CPU can even support is only 512megs

[wenid]

Picasso, could you please post the part numbers of the major chips that are not visible/readable in the pics at adotnet.net?
Or failing that, please help me to safely remove the mainboard from my own OQO. I've removed the hard drive, bluetooth, WLAN, and fan. I also took off the antenna covers so I have a "floating" screen, but I haven't disconnected the screen's cable (I can't seem to open the connector. Did you just pull the cable out or is there some trick I'm missing?). I can't see any screws or anything holding the mainboard in, but it doesn't want to budge and I don't want to risk breaking it by forcing it.

[wenid]

Well I detached the screen and removed the plate underneath. That helped me to figure out where the mainboard was sticking (the tiny plastic post in the middle of the board), but I still couldn't get it out because of all the sockets and the scroll wheel.
Anyway, I've managed to identify most of the parts I was interested in so I thought I'd list them here in case anyone else is interested, now or in the future. Note that this is a model 01+. Some of these markings are very small and/or faint, so it is possible that I misread some characters.
The Bluetooth is provided by a CSR (www.csr.com) chip with the markings "BC219", "159BL","447AB". There seem to be two supporting chips. One appears to be marked "LW083A","TI 4AW","210L" and the other "SH1202","3c096" (with the 'c' circled making a copyright symbol),"4304".
The mainboard is marked "PCB-9051-03-rev01". A few components are mounted on the back of the board, but they are only visible after the WLAN board and fan assembly are removed.
Right behind the scroll wheel is a CY22393 (marked "CY22393FC","0531 A 02","636095"), which is a "Three-PLL Serial-Programmable Flash-Programmable Clock Generator" capable of generating clock signals up to 200MHz.
Near that is an ICS-branded chip marked "CN420744A","0446","9248AG-192" and then the NEC µPD720101 USB 2.0 host controller (markings: "D720101F1","0529PUA08").
The Transmeta Crusoe CPU is also on this side of the board. Its markings are "5800N100021","301251","101568","0515","6507F -3","D10128.99".
Parts visible once the panel under the screen is removed include the ALi M1535+ ("M1535+ A1","0444 TH07","XHH2QY00000F"), The Lynx3DM8+ ("SM722G8 AB 0436","MHL07 AF3FS","L F6DC"), and a National Semiconductor PC87591E ("2S442AB","cmNSC2000C2","PC87591E-VLB") LPC Mobile Embedded Controller.
There is also an STMicroelectronics LIS3L02AQ Inertial Sensor ("LIS3L02AQ","HAAAH 1N","KOR 434","E AFAF"), which I assume is how the OQO detects "freefall" so it can shut off the hard drive.
Finally, the battery that keeps the clock running is a Sanyo ML614 (3V 3.4mAh rechargeable Lithium, 1.4mm high, 6.8mm diameter).


EDIT:
P.S. Picasso's pics also clearly show a Texas Instruments TSB43AB22A OHCI 1.1 1394a link-layer controller.

[rrmoore64]

Anyone know of a disassembly guide or tips?  I am thinking of a few simple mods for my OQO and haven't really looked at tearing it down until now.

Thanks,

[Picasso]

I might be able to help. What do you want to mod the screen or the case?

Case is easy to open just remove rear cover.

Screen can be a little of a trick.

[rrmoore64]

Case - actually want to get behind the battery release.  I am going to try to add a small internal speaker to my 01. 

[Picasso]

Case is cake. Just remove the screws and the pen. The stock speaker on the 01+ Is in on the heat seak/fan and plays out the top. I think its a cell phone type.

[2disbetter]

That is actually a good idea. When your done woudl you mind telling me how complicated it was to add? I would appreciate it.

[rrmoore64]

Well, not a complete success.  I got the speaker from a cell phone - not the earpiece but the ringer speaker, and it was plenty thin enough to fit under the fan of the OQO.  I then located the connections near the headphone port that I could use to run wire-wrap wire to the speaker and got it all connected.  I then had to reassemble the whole thing since it would be nearly impossible to bench-test the OQO while disassembled. 

Once it was back together, it worked, but there wasn't nearly enough volume to hear it past a few inches.  I guess the headphone output from the OQO is really just not enough.  I also thought about the fact that I didn't check to see if the connections I used were ones that would disconnect once a headphone was plugged in - in fact, I'm sure they weren't so had I left it installed, the speaker and the headphones would have been active at the same time.  I removed all my work and went back to stock.

If I try it again, I will test the speaker I use with a pigtail from the headphone port first - but I would bet the audio volume will always be too low.  Oh well, thought it would handy for Skype if I didn't have my headphones with me.  I tried pairing a bluetooth handsfree device, but can never get more than a few clicks and pops - I guess the OQO Bluetooth radio chipset won't handle the bandwidth required for a simple audio connection.  I tried all the alternate SW stacks that had been discussed on the various forums with no better results.

Sorry,