# How to figure out the pinout of this embedded netbook (Asus EEE X101h) webcam? [closed]

Sometime ago my old Asus X101H netbook died with a molten cooler fan. I've extracted it's webcam, which I want to use for another project.

Now I'm trying to map the pinout of the connector. The situation looks like this:

So I'm guessing it's using USB to connect the webcam. On the board is also a microphone, so I'm guessing there are two USB interfaces.

I've figured out the grounds by measuring the resistance by the screw hole (left side of the boards frontal view).

The black and the blue wire are GNDs. I know it's hard to figure out D- and D+ but it's not so bad if I get the wrong.

My only problem is, how can I figure out which pins are the VCCs?

On the label of the cable is written:

X101H CMOS CABLE
P/N: 14004-00090100
HIGH-TEK (KW5) 11/08/22


I've a Fluke Multimeter, but not many other tools.

## closed as off-topic by Chris Stratton, Finbarr, Elliot Alderson, Dwayne Reid, RoyCJan 22 at 9:15

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "Questions on the repair of consumer electronics, appliances, or other devices must involve specific troubleshooting steps and demonstrate a good understanding of the underlying design of the device being repaired. See also: Is asking on how to fix a faulty circuit on topic?" – Chris Stratton, Finbarr, Elliot Alderson, Dwayne Reid, RoyC
If this question can be reworded to fit the rules in the help center, please edit the question.

• Practically speaking, you probably do not. If you really want to pursue this, first you'll need to boot the original system with this connected and figure out if it is showing relevant USB devices. It's somewhat likely this is not USB but rather some synchronous interface - if you can't run the original system with an external fan pointed at the CPU you'd probably need a scope to tell. If you want something for a project, buy something with known specs. – Chris Stratton Jan 19 at 18:35
• Thank you for your comment. Well, there is no way to get the original system back together. I've found block diagrams of other ASUS EEE netbooks and most of them connect the camera via USB. – Robin Jan 19 at 18:46
• You should be able to figure out power and ground. If you want to take risks with a sacrificial USB hub and sacrificial computer, you could then experiment with data line candidates and see if there is a combination that works. But only if you are willing to accept a slight but real risk of losing everything involved in the experiment. Basic webcams with USB connectors sell for a few dollars... – Chris Stratton Jan 19 at 18:51
• Your best bet might be to start doing some reverse-engineering of the circuitboard. See what's connected to what, and see if you can find part numbers. I doubt you're going to figure it out though. – Hearth Jan 19 at 19:23
• Be aware that schematics for your computer appear to be available online and depending where you live it may be perfectly legal for you to download it temporarily for educational purposes. You should be able to find both precise pinout and the names of connected chips there. – K H Jan 19 at 21:40