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Fixing an IBM T40 with no Video (In North Vancouver)

Updated on February 23, 2012
Hard drive problem not suitable for pick up. It is used in shelter.
Hard drive problem not suitable for pick up. It is used in shelter.
Using VGA cable to connect to TV.
Using VGA cable to connect to TV.
Using earphone jack plug to RCA Connector cable to sound system.
Using earphone jack plug to RCA Connector cable to sound system.
Laptop display along with TV display.
Laptop display along with TV display.
The little fuse with F has been replaced.
The little fuse with F has been replaced.

For fixing the T42 Thinkpad with red screen, I bought a LCD from a T40. The seller gave me the LCD together with the T40 which had video problem. Unfortunately, the LCD screen had several white spots that I could not use but the T40 gave me the chance to rebuild it.

When fixing another T42 which had video on external monitor but not on LCD screen, I bought a new LCD screen for it. The original LCD had backlight burnt out. From the LCD screen with white spots, I took out the backlight and put it into the T42 LCD screen.

Out of the lot of 5 hard drives that I bought, one had bad sectors but still usable.

I got all the parts but the T40 motherboard required reflow. I did it on 25Sep2011 with all the steps that I used on HP.

I used the AC adapter from the T42 with red screen. I powered up the T40 and tried to install the IBM Preload image to it. The recovery did not run through because of hard drive error. I switched to Ubuntu OS. Although Ubuntu reported hard disk problems detected, it allowed me to continue the installation. When the Ubuntu desktop came out, I found that the LCD screen also had a bright arc near the bottom right hand corner.

For this T40 which had LCD screen defect, no CD/DVD drive and failing hard drive, I did not sell it but used it at home for connecting to TV and audio system. The original wireless was 802.11b. I upgraded it to 802.11g. It provides wireless access and feeding video and audio to TV and audio system. With a wireless mouse, I could enjoy videos in a 46" TV screen.

On 12Jan2012, it started having video problem occasionally. I did another reflow at the back of the GPU on 30Jan2012. It works again. I replaced the hard drive and loaded the IBM PRELOAD partition. When I open the T40 again, the the power shut down switch on the screen cable got loosen. I tried to replace the cable by another one. It brew the fuse and the T40 could not be powered on.

I checked all the fuses and located the shorted one. The fuse is very small. I tried three times to get the fuse from old motherboard before I could get one. I soldered the fuse to the T40 and it works gain. Instead of changing the screen cable, I just fixed the little power shut off switch.

It was picked up by an artist for a low price as broken laptop on 23Feb2012.


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