Introduction

I will show in this Guide how to replace the 12 AX7A Tube in your Tube Art MP easily and without complications.

Loosen the 4 screws sideways the device, using a PH1 Loosen the 4 screws sideways the device, using a PH1
  • Loosen the 4 screws sideways the device, using a PH1

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Use the Smart Wrench to loosen the two In- and Output controllers. Attach the Smart Wrench below the controller. Be careful not to damage the surface. Now you can lift up the top of the device, and the mainboard appears.
  • Use the Smart Wrench to loosen the two In- and Output controllers. Attach the Smart Wrench below the controller.

  • Be careful not to damage the surface.

  • Now you can lift up the top of the device, and the mainboard appears.

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Use the Smart Wrench again to loosen the cinch ports on the backside.
  • Use the Smart Wrench again to loosen the cinch ports on the backside.

  • Attention! Do not lose the washers located at the in- and outside. Two pieces each.

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Use the PH 1 to unscrew 2 screws on the motherboard. Now you can take the board out completely Attention: There are again 2 washers.
  • Use the PH 1 to unscrew 2 screws on the motherboard.

  • Now you can take the board out completely

  • Attention: There are again 2 washers.

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Carefully bend the tube up to get a better view Remove the tube with a cloth from the socket, a metal spudger can help Insert the new tube
  • Carefully bend the tube up to get a better view

  • Remove the tube with a cloth from the socket, a metal spudger can help

  • Insert the new tube

    • Use cloth so that no residues accumulate on the surface.

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Finally just reassemble all parts. Be careful to tighten all the screws and ports, otherwise internal vibrations could cause damage to your device. First put the cinch ports in to get the mainboard back  in place.
  • Finally just reassemble all parts.

  • Be careful to tighten all the screws and ports, otherwise internal vibrations could cause damage to your device.

  • First put the cinch ports in to get the mainboard back in place.

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Conclusion

Congratulations you did it :)

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Alex Krug

Member since: 12/23/2016

99 Reputation

2 Guides authored

One Comment

Only replace the fuse? Is that the only part that usually breaks?

Raoul B. - Reply

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