Tektronix WFM5250, Service Manual

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Important safety information
Do not operate in an explosive atmosphere.
Keep product surfaces clean and dry.
Remove the input signals before you clean
the product.
Provide proper ventilation. Refer to the installation instructions in the manual for
details on installing the product so it has proper ventilation.
Slots and openings are provided for ventilation and should never be covered or
otherwise obstructed. Do not push objects into any of the openings.
Provide a safe working environment.
Always place the product in a location
convenient for viewing the display and indicators.
Use only the Tektronix rackmount hardware speci fi ed for this product.
Service safety summary
The Service safety summary section contains additional information required to
safely perform service on the product. Only quali fi ed personnel should perform
service procedures. Read this Service safety summary and the General safety
summary before performing any service procedures.
To avoid electric shock. Do not touch exposed connections.
Do not service alone.
Do not perform internal service or adjustments of this
product unless another person capable of rendering fi rst aid and resuscitation is
present.
Disconnect power.
To avoid electric shock, switch off the product power and
disconnect the power cord from the mains power before removing any covers or
panels, or opening the case for servicing.
Use care when servicing with power on.
Dangerous voltages or currents may exist
in this product. Disconnect power, remove battery (if applicable), and disconnect
test leads before removing protective panels, soldering, or replacing components.
Terms in this manual
These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.
CAUTION.
Caution statements identify conditions or practices that could result in
damage to this product or other property.
WFM5250 Waveform Monitor Service Manual vii