HP 3562A, Service Manual

Page: 445 / 570

H EWLETT
PACKARD
SAFETY SUMMARY
The following general safety precautions must be observed during all phases of operation, servi ce, and repair
of this instrument. Failure to comply with these precautions or with specific warnings elsewhere in this manual
violates safety standards of design, manufactu re, and intended use of the instru ment. Hewlett-Packard Com­
pany assumes no l iabi lity for the customer's failure to comply with these req ui rements. This is a Safety Class
1
instru ment.
G RO U N D THE IN STR UMENT
To m i n im ize shock hazard, the i nstrument chass is and cabi net m ust be connected to an el ectri cal ground.
The instrument is equi pped with a three cond uctor ac power cab le. The power cable m u st either be p l u gged
i nto an approved three-contact electrical outlet or used with a three-contact to two-contact adapter with the
gro u n d i ng wire (green) f i rmly connected to an electrical ground (safety ground) at the power outlet. The power
jack and mating plug of the power cable meet I nte rnational E l ectrotechnical Comm ission (l EC) safety standards.
DO NOT OPERATE IN AN EXP LOSIVE ATMOSPH E RE
Do not operate the instru ment 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 LIVE C I RCU ITS
Operating perso nnel m ust not remove instrum ent covers. Component replacement and internal adj ustments
m ust be made by q u a l ified m a intenance personnel. Do not replace com ponents with power cable connected.
Under certa i n conditions, dangerous vo ltages may exist even with the power cable removed. To avo id i nju ries,
always d isconnect power and di scharge circu its before touching them.
DO NOT SERVICE OR ADJ U ST A LO N E
Do not attempt internal service or adj ustment u n l ess another person, capable of rendering f i rst aid and resus­
citation, is present.
DO NOT SU BSTITUTE PA RTS OR MODIFY IN STR UMENT
Because of the danger of introd ucing add itional hazards, do not in stall substitute parts or perform any unautho­
rized modification to the instrum ent. Return the i nstrument to a H ewl ett-Packard Sales and Service Office
for service and repair to ens u re that safety featu res are mai ntai ned.
DA N G E R O U S PROC E D U R E WA R N I N G S
Warn ings, such as the example bel ow, precede potentially dangerous procedu res throughout this manual. I nstruc­
tions contai ned in the warn ings must be fo llowed.
WAR NING
Dangerous voltages, capable of causing death, are present in this instrument. U se
extreme caution when hand li ng, testing, and adjusti ng.