Tektronix MDO3000 Series, Service Manual

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Important Safety Information
probe reference lead to the circuit under test before connecting the probe input.
Disconnect the probe input and the probe reference lead from the circuit under test
before disconnecting the probe from the measurement product.
Connect and disconnect properly.
De-energize the circuit under test before
connecting or disconnecting the current probe.
Connect the probe reference lead to earth ground only.
Do not connect a current probe to any wire that carries voltages above the current
probe voltage rating.
Inspect the probe and accessories. Before each use, inspect the probe and
accessories for damage (cuts, tears, or defects in the probe body, accessories, or
cable jacket). Do not use if damaged.
Ground-referenced oscilloscope use.
Do not fl oat the reference lead of this probe
when using with ground-referenced oscilloscopes. The reference lead must be
connected to earth potential (0 V).
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.
Verify safety after repair.
Always recheck ground continuity and mains dielectric
strength after performing a repair.
MDO3000 Series Mixed Domain Oscilloscopes Service Manual vii