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July 4, 2005, 2:50 am
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Last week I wrote about the backlight in the LCD of an IBM T21.
I was able to take it all apart and checked the wires, no luck.
I want to test the output of the inverter, and I wonder what voltage I
should get from there. I have a nice voltmeter/oscilloscope so I can check
the frequency as well. I don't know where to find the specs, though, so I
was wondering if somebody can help me on that.
Re: IBM thinkpad LCD
can seriously injure or kill you. It's typically in the range of 800 to
1,600 volts, up around 10 - 20 KHz, current availability is in the range
of 5 ma to 20 ma. There is quite a bit of variability depending on the
exact machine and configuration.
This is no part of a laptop for an amateur to be fooling around with,
again, the voltages in the inverter can be very dangerous.