Lenovo A730 All-in-One IdeaCentre - Manual (Page 59)

a. Line up the holes on the new touch control board with the mounting holes on the middle frame
and secure it with the 2 screws.
b. Connect all the cables to the new touch control board.
Step 11. Reattach the rear cover to the LED panel.
Step 12. Reattach the hinge to the chassis, and reconnect the touch and LED panel cables to the
motherboard.
Step 13. Reattach the base cover and secure it with the screws.
Replacing the converter board
Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover.
To replace the converter board:
Step 1. Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
system, and turn off the computer and all attached devices.
Step 2. Unplug all power cords from electrical outlets.
Step 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
cables, and any other cables that are connected to the computer. Refer to “Left and right view”
and “Rear view” for help with locating the various connectors.
Step 4. Remove the base cover. Refer to “Removing the base cover”.
Step 5. Remove the hinge from the chassis. Refer to “Removing the hinge from the chassis”.
Step 6. Remove the rear cover. Refer to “Removing the rear cover”.
Step 7. Remove the 4 screws that secure the converter board to the middle frame. 1
Step 8. Disconnect the 2 cables from the converter board. 2
Step 9. Lift up the converter board to remove it.
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Chapter 8 . Replacing hardware 53