928 Mixing Console
Edition:
07.02.01 Alignment, general E 3/13
3.2.4 Electrostatically sensitive components („ESE“)
Many materials of today's working environment are possible sources
of static electricity. Under certain conditions persons or objects can
be charged to very high voltages – and according to Murphy's Law,
these conditions are always met. When discharged, pulses of substan-
tial peak power can occur. If this energy even partly finds its way into
an electronic component, the latter can be damaged or destroyed.
Handling „ESE“ assemblies Correct handling of electronic assemblies is a very important factor in
the area of equipment maintenance; some simple guidelines must be
followed:
1. Discharge your body by touching ground potential before touching
any electronic assembly.
2. Shake hands with your partner before handing him over an electronic
assembly.
3. Only touch a PCB at its edges (or its front panel, if any).
4. Switch off power before removing or inserting an assembly.
5. Stocking and transporting of „ESE“ assemblies must be performed only
in special packaging material designed for this purpose.
6. Work only with tools suited and tested for „ESE“ components.
7. Always wear the grounding wrist-strap when working on electronic
assemblies.
8. Keep Styrofoam, PVC foils, plastic bags and similar materials far away
from „ESE“ assemblies.
Use of a grounded protection mat („ESE“ mat) is strongly recom-
mended (refer to the next paragraph).
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