Need help. Short circuit on my CubeX Duo. How can I repair this?

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tanapon tangboonnitiwong

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Nov 21, 2013, 1:07:14 AM11/21/13

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Recently I tried to replace Cubex Duo filament motor and gear since it was broken and cannot print out filament. The bolt was really tight I twisted it really hard until it's head worn out. I could not take the motor out anymore. Then, I decided to place my new motor at the 3rd print jet placement which is still available.

After that I moved all the 1st print jet's cable into the new 3rd print jet. I also checked the motherboard and move the first print jet pc board out and put it into 3rd print jet slot on motherboard. (Everything seems to went fine since I followed the name of parts on the board.)

I moved the 1st PJ's cartridge sensor and link the cable into 2nd PJ's sensor since the slot was available.(I thought it was for linking between 2nd Cartridge and 3rd Cartridge.) After I finished assemble every parts, I plugged the machine and the 2nd cartridge sensor started to burn. I plugged out the electric cable and sensor cable before things got worsened anymore.

I checked the board up, there weren't any damage. Only the 2nd sensor cartridge is burned. I tried to turn it on again but the display and the light below weren't come up. The red LED on the motherboard was bright (I assume that electricity is still running inside the board.) and I still heard the buzz sound coming from it.

Could you please help me identify the problem? I'm really desperate right now since it's my faculty's property and I'm in charge of it.