No display after removing laptop RJ45 Jack

June 12, 2012 at 07:07:43
Specs: Windows XP
No display after removing RJ45 Jack in Laptop, Kindly suggest me how I can trace the fault.

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#1
June 12, 2012 at 08:22:46
Do you mean you unpluged the ethernet cable from the jack or you physicaly removed the jack from the mother board?

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#2
June 13, 2012 at 04:41:55
I was having some complication in LAN connection and one of my friend told me to remove RJ45 Jack and replace it with a new one, I did but didn't find new RJ45 Jack in the market except the old extracted from the dead motherboard. Since then everything is fine except I am not having the display in LCD. My said friend tried but told me to get some knowledge of tracing, i.e fault finding technique, how to trace the missing value or resistence that creats problem. That's it .I need the technique, to find the display fault.
Thanks in advance.


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#3
June 13, 2012 at 12:48:13
Well at this point I would say you fried something or broke a trace somewhere on the motherboard. If you've never worked on a circuit board or done troubleshooting on one, I would suspect you don't have the tools to troubleshoot either such as a voltmeter, oscilliscope, etc. Nor do you have the schematics of the motherboard that will tell you what voltages are supposed to be present at what points.

I would do two things at this point. Stop listening to your idiot friend, then take your laptop to a shop and have the motherboard replaced by a qualified technician.


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