Record-55 issue was B4 hardware failure (Was: [sugar] Design Question)

John Watlington wad at
Sun Jul 20 23:13:24 EDT 2008

On Jul 20, 2008, at 11:07 PM, Gary C Martin wrote:

> On 20 Jul 2008, at 22:27, John Watlington wrote:
>> Take a look at:
>> XO_Troubleshooting_AV#Errors_communicating_with_the_camera
>> The majority of these problems are due to a latch on the flex  
>> cable connector coming loose.
>> If you disassemble the laptop, and find that it was due to another  
>> source, pleased either
>> add it to the guide or let me know.
> Thanks for the pointer. I've now disassembled, detached and  
> reattached the camera connector and am back up and running. I could  
> see no visible signs of any damage, though the ribbon from camera  
> to motherboard did seem perhaps a little short/tight given the  
> attachment angle. The camera is working in Record and with the  
> hardware test, however moderate pressure to the right of the screen  
> near the camera (i.e. as when you rotate/move the screen from that  
> side) will cause the image to fail or go purple/green as before,  
> though it is currently returning to normal when pressure is released.
> So, resolved enough for me to help test software that uses the  
> camera :-) but I'll need to keep an eye on the pressure applied  
> when adjusting the screen angle.
> --Gary
> P.S. I'll try and think-up something non-committal for the wiki  
> page about applying and/or avoiding pressure on the right side of  
> screen as something to investigate if a camera is playing up.

Please remember that the B4 is pre-production hardware.
We lengthened the cable between the camera and the motherboard to  
improve this problem
in production.


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