Introduction

Use this guide to remove the Visioneer OneTouch 7400 USB motherboard for repair or replacement.

Parts

No parts required.

On the bottom of the scanner, remove the screw at the top left side.
  • On the bottom of the scanner, remove the screw at the top left side.

Add Comment

Remove the rubber foot pad opposite the screw hole to expose a second screw hole. Remove the screw beneath the foot-pad.
  • Remove the rubber foot pad opposite the screw hole to expose a second screw hole.

  • Remove the screw beneath the foot-pad.

Add Comment

Rotate the scanner so the screw hole is located on the top left hand side. Place the plastic opening tool between the top casement and bottom casement of scanner with the hook facing up. Gently pry the two casements apart beginning above the screw hole and working your way around.
  • Rotate the scanner so the screw hole is located on the top left hand side.

  • Place the plastic opening tool between the top casement and bottom casement of scanner with the hook facing up.

  • Gently pry the two casements apart beginning above the screw hole and working your way around.

  • Note that the top and bottom casings are held together by a series of 6 tabs. There is one tab on each of the long sides of the scanner approximately 6 inches in from the corners. There are two tabs on each of the short sides of the scanner approximately 2.3 inches in from the corners. Use the spudger to unhook the tab from the top casement.

Add Comment

Deck the Halls
With tools and Fix Kits
Separate the two casement pieces.
  • Separate the two casement pieces.

Add Comment

On the bottom half of the casing, remove the two screws in the motherboard. On the bottom half of the casing, remove the two screws in the motherboard.
  • On the bottom half of the casing, remove the two screws in the motherboard.

Add Comment

Carefully detach the wires from the motherboard, pulling slowly but firmly.
  • Carefully detach the wires from the motherboard, pulling slowly but firmly.

  • On the right hand side, the motherboard is attached to the ribbon. Do not pull too hard.

Add Comment

Flip the motherboard over carefully.
  • Flip the motherboard over carefully.

  • Gently pull the ribbon out of its bed.

Add Comment

Conclusion

To reassemble your device, follow these instructions in reverse order.

Jena

Member since: 10/18/2013

608 Reputation

6 Guides authored

Team

0 Comments

Add Comment

View Statistics:

Past 24 Hours: 1

Past 7 Days: 1

Past 30 Days: 3

All Time: 133