HP 3562A, Service Manual

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HEWLETT
SAFETY SUMMARY
The following general safety precautions must be observed during all phases of operation, service, and repair
of this instrument. Failure to comply with these precautions or with specific warnings elsewhere in this manual
violates safety standards of design, manufacture, and intended use of the instrument. Hewlett-Packard Com­
pany assumes no liability for the customer's failure to comply with these requirements. This is a Safety Class
1
instrument.
GROUND THE INSTRUMENT
To minimize shock hazard, the instrument chassis and cabinet must be connected to an electrical ground .
instrument is equipped with a three conductor ac power cable. The power cable must either be plugged
into an approved three-contact electrical outlet or used with a three-contact to two-contact adapter with the
grounding wire (green) firmly connected to an electrical ground (safety ground) at the power outlet . The power
jack and mating plug of the power cable meet International Electrotechnical Commission (I EC) safety standards.
DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE
not operate the instrument in the presence of flammable gases or fumes. Operation of any electrical instru­
ment in such an environment constitutes a definite safety hazard .
. KEEP AWAY FROM L IVE CIRCUI TS
Operating personnel must not remove instrument covers. Component replacement and internal adjustments
must be made by qualified maintenance personnel . Do not replace components with power cable connected.
Under certain conditions, dangerous voltages may exist even with the power cable removed. To avoid injuries,
always disconnect power and discharge circuits before touching them .
DO NOT SERV ICE OR ADJUST ALONE
not attempt internal service or adjustment unless another person, capable of rendering first aid and resus­
citation, is present.
DO NOT SUBSTI TUTE PARTS OR MOD IF Y INSTRUMENT
Because of the danger of introducing additional hazards, do not install substitute parts or perform any unautho­
rized modification to the instrument . Return the instrument to a Hewlett- Packard Sales and Service Office
for service and repair to ensure that safety features are maintained .
DANGEROUS PROCEDURE WARNINGS
Warnings, such as the example below, precede potentially dangerous procedures throughout this manual . Instruc­
tions contained in the warnings must be followed .
WARNING
Dangerous voltages, capable of causing death, are present in this instrument. Use
extreme caution when handling, testing, and adjusting.