Valleylab Force FX-8C, Service Manual

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Service Personnel Safety
Introduction
Force FX-8C Service Manual 1-5
Electric Shock Hazards
Servicing
Fire Hazard
For continued protection against fire hazard, replace fuses only with
fuses of the same type and rating as the original fuse.
Warning
Connect the generator power cord to a properly grounded receptacle. Do not use
power plug adapters.
Do not connect a wet power cord to the generator or to the wall receptacle.
To allow stored energy to dissipate after power is disconnected, wait at least five
minutes before replacing parts.
Always turn off and unplug the generator before cleaning.
Do not touch any exposed wiring or conductive surfaces while the generator is
disassembled and energized. Never wear a grounding strap when working on an
energized generator.
When taking measurements or troubleshooting the generator, take appropriate
precautions, such as using isolated tools and equipment, using the “one hand
rule,” etc.
Potentially lethal AC and DC voltages are present in the AC line circuitry, high
voltage DC circuitry, and associated mounting and heat sink hardware described
in this manual. They are not isolated from the AC line. Take appropriate
precautions when testing and troubleshooting this area of the generator.
High frequency, high voltage signals that can cause severe burns are present in
the RF output stage and in the associated mounting and heat sink hardware
described in this manual. Take appropriate precautions when testing and
troubleshooting this area of the generator.
Caution
Read all warnings, cautions, and instructions provided with this generator before
servicing.
The generator contains electrostatic-sensitive components. When repairing the
generator, work at a static-control workstation. Wear a grounding strap when
handling electrostatic-sensitive components, except when working on an
energized generator. Handle circuit boards by their nonconductive edges. Use an
antistatic container for transport of electrostatic-sensitive components and circuit
boards.
Notice
After installing a new low voltage power supply, verify that the voltages are
correct.
Warning