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INSTRUCTION MANUAL PR 1591/00, /10
2.3.2 Repairs
Maintenance and repair work must be performed only by trained personnel
aware of the risks (see chapter 2.2.). Make sure that the construction of the
instrument is not altered to the detriment of safety. Above all, leakage paths, air
gaps, and insulation layers must not be reduced.Only original parts may be used
for replacement.
only by trained personnel who are aware of the risks
2.3.3 For special attention
When soldering on the circuit boards it is essential
-
to switch off the power,
-
to use a low-voltage soldering iron, galvanically separated from the mains
side.
Suitable soldering irons should have temperature control and different types
of nozzles (pin point tips), e.g. Weller Magnastat WTCP or WECP, or
Ersa TC 70/24 V.
If a higher wattage-rating soldering iron is used, excessive heat can cause the
printed circuits paths to separate from the board base material, thus irreparably
damaging the printed circuit board.
2.3.4 Electrostatically sensitive components
This instrument contains electrical components which are susceptible to damage
from electrostatic discharge. Servicing statically sensitive assemblies or
components may be performed only by qualified personnel at an antistatic work
station, or by the local service organization of Philips Weighing.
2.3.5 Replacing fuses
The instrument must be disconnected from all voltage sources when a fuse is to
be renewed, or when the instrument is to be adapted to a different mains voltage
! CAUTION !
Maintenance or repairs must be performed
! WARNING !
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