User's Manual

M7X and M7R Page 5-15 Maintenance

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Replacing the Control Head

Ensure the input ac and dc supplies are disconnected before removing the Control Head.

This equipment contains devices sensitive to electrostatic discharge. Precautions applicable to

handling such equipment, including wearing a static protection wrist strap connected to earth,

should always be taken.

To remove to radio’s Control Head:

(1) Using a Torx T20 screwdriver, remove and retain the four M4 x 6 mm screws that secure the

Control Head to the chassis; see Fig 5-11.

Fig 5-11 Replacing the Control Head (1)

(2) Pull the Control Head forward to access the three cables that connect to the control head’s rear

plate (Fig 5-12).

WARNING Dangerous Voltage

Caution ESDs

M4 x 6 mm screws