300. Prior to removing, servicing or making measurements on any solid state circuit boards from the RADAR set, the operator should ensure that:

The proper work surfaces and ESD grounding straps are in place to prevent damage to the boards from electrostatic discharge .
The waveguide is detached from the antenna to prevent radiation.
The magnetic field is present to prevent over-current damage or overheating from occurring in the magnetron.
Only non-conductive tools and devices are used.

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