420 E8257D/67D, E8663D PSG Signal Generators Service Guide
Safety and Regulatory
General Safety Considerations
General Safety Considerations
The following safety notes apply specifically to signal generators. These notes
also appear in other chapters of this service guide as required.
These servicing instructions are for use by qualified personal only. To avoid
electrical shock, do not perform any servicing unless you are qualified to do so.
The opening of covers or removal of parts is likely to expose dangerous voltages.
Disconnect the product from all voltage sources before starting to open.
The detachable power cord is the instrument disconnecting device. It disconnects
the mains circuits from the mains supply before other parts of the instrument. The
front panel switch is only a standby switch and is not a LINE switch (disconnecting
device).
The power cord is connected to internal capacitors that may remain live for 5
seconds after disconnecting the plug from its power supply.
This is a Safety Class 1 Product (provided with a protective earthing ground
incorporated in the power cord). The mains plug shall only be inserted in a socket
outlet provided with a protective earth contact. Any interruption of the protective
conductor inside or outside of the product is likely to make the product
dangerous. Intentional interruption is prohibited.
Replace battery only with the same or equivalent type recommended. Discard
used batteries according to manufacturer’s instructions.
If this product is not used as specified, the protection provided by the equipment could be
impaired. This product must be used in a normal condition (in which all means for
protection are intact) only.
Many of the assemblies in this instrument are very susceptible to damage from
electrostatic discharge (ESD). Perform service procedures only at a static-safe
workstation and wear a grounding strap.
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