Saturday, February 18, 2017
Wednesday, February 15, 2017
Fixing an electric toy train engine
I was asked to repair a toy train that was not working.
After checking the batteries for power with a multi-meter I guessed it was the motor and pulled it apart.
I cleaned the grease off the rotor and took some fresher grease, still black looking, from the contact points.
I spread the grease around the clean rotor and reassembled it.
It Worked!
Lap Top Power Socket
An Asus laptop had power problems.
I found a few videos.
Short summary
A long summary
I played the short video until I was confident then I counted all the screws.
I made a plan...
And gave it a go, taking a photo at every step.
Then I soldered up the broken part.
It was the gold solid wire coming out the rear of the socket!
Can you see the black break in the gold wire?
Then I loaded the photos onto my laptop and went through them in reverse.
Using the photos as a check procedure.
I had to watch a few segments of the long video in order to connect back in the ribbon cables.
That was the most difficult part. But my photos showed me the before connections, so I kept persevering until the ribbon cables looked the same.
No screws were lost or damaged in this processes!
And none left over. I used magnets to hold the screws.
I found a few videos.
Short summary
A long summary
I played the short video until I was confident then I counted all the screws.
I made a plan...
PLAN | ||
Remove | Number | |
Battery | 1 | |
rubber feet | 4 | |
Screw under feet | 4 | |
one screw at back in battery area | 1 | |
Under cover | 1 | |
Underneath screws | 11 | |
small door | 1 | |
screws under door | 2 | |
battery area screws | 5 | |
Keyboard | 1 | |
Keyboard ribbon | 2 | |
Optical drive | 1 | |
screws in optical drive area | 3 | |
Under track pad | 7 | |
IO cable | 1 | |
Speaker cable | 4 | |
IO Board screw | 1 | |
IO board removal | 1 | |
Fix power plug |
And gave it a go, taking a photo at every step.
Then I soldered up the broken part.
It was the gold solid wire coming out the rear of the socket!
Can you see the black break in the gold wire?
Then I loaded the photos onto my laptop and went through them in reverse.
Using the photos as a check procedure.
I had to watch a few segments of the long video in order to connect back in the ribbon cables.
That was the most difficult part. But my photos showed me the before connections, so I kept persevering until the ribbon cables looked the same.
No screws were lost or damaged in this processes!
And none left over. I used magnets to hold the screws.
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