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Q7 & SD7 Local IO Backplane Replacement (TN584)

Important Note: These instructions are a guide to replacing the local I/O backplane card in a
SD7/Q7 mixer. This note is for the use of factory approved technicians only.

 

Preparations

Read the instructions carefully before starting, and leave yourself time to perform the work.

 

Tools required

  • 2mm hex (allen) key
  • 1 point pozidrive (PZ1) screwdriver
  • Flat-headed screwdriver

Ensure you have taken appropriate anti-static precautions

Avoid working in areas with synthetic floor coverings or carpet, especially polypropylene material, as opposed to natural materials such as solid wood or wool. Ideally work at a proper workbench with ESD safe features, such as a metal frame. Before work, try to discharge yourself into a mains earth fitment, water pipe etc.

This is important as parts of the equipment are static sensitive and even if any damage is not immediately obvious, so called “latent damage” can occur, where a device may be partially degraded yet continue to perform its intended function. However, the operating life of the device may be reduced dramatically, leading to premature failure.

If you are unsure about any part of the procedure, seek advice before proceeding.


 

Before you start, shut down the console, switch it off, and remove the power leads.

 

Procedure

Release the thumb screws (Flat-headed screwdriver) on the 3 x local I/O modules on the rear of
the console and remove the modules.

 

Remove 6 x 2mm kex stainless panel fixing screws from the master upper panel (Use the 2mm
hex driver). Lift the upper surface from the bottom edge (nearest faders). Disconnect cable
connections as shown below and remove the surface.

 

Locate the local I/O backplane board. Disconnect cable connections as shown below. Note that it
is recommended to remove the video clamp PCB from the video switcher board to allow the PSU
connectors on the local I/O backplane to be removed more easily.

 

Unscrew the local I/O backplane card from the chassis (9 x screws with Pozi screwdriver) and
then replace the card. Refit all cable connections, the master upper surface and the local I/O
modules.

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