Physio Control LIFEPAK 9 - Table 5-2 Table; Inspection Techniques; Exterior Inspection; Interior Inspection

Service and Maintenance 4
PCB
Repair
The
SAS
Adapter
PCB
Assembly
in
the
adapter
is
a
multilayer
PCB.
Precautions
Multilayer
PCBs
are
not
repaired
easily.
It
consists
of
alternate
layers
of
conductive
patterns
and
insulating
material
bonded
together
and
interconnected
with
plated-thru
holes.
The
internal
layers
and
connection
points
are
quickly
damaged
by
too
much
heat,
rendering
the
entire
PCB
useless.
It
is
therefore
recommended
that
all
multilayer
PCBs
be
returned
to
Physio-Control
for
repair
or
replacement.
Inspection Techniques — When servicing or repairing the instrument, begin with a visual
inspection. When a failure is found, look for other peripheral damage.
Exterior Inspection Visually inspect the entire instrument for wear, corrosion,
deterioration, and damage resulting from extreme temperatures or
dropping. Lift and turn the instrument upside down while listening for
loose hardware.
Interior Inspection Table 4-1 lists the major hardware components of the instrument,
possible problems, and recommended corrective actions.
Table 4-1 Inspection Techniques
Hardware Problem Corrective Action
Chassis, covers, and Warped, bent, damaged surface, or Replace
brackets missing hardware
Components Loose mountings Repair
(mechanical and Broken, or damaged leads Replace
electrical) Deteriorating or leaking Replace
Connector pins Bent Straighten (if slight)
Loose or corroded Replace
Nameplate, labels, Hlegible Replace if damaged
and decals
PCB surfaces* Charred, cracked, or brittle Replace PCB
Screws and nuts Loose or cross-threaded Tighten or replace
Terminals and Improperly installed Install correctly
connections Missing or worn Replace
Failed solder connections Resolder (if not damaged) or replace
Wire insulation and Deteriorated, worn, pinched, or Replace
tubing damaged
* Some discoloration of the PCB surface can be expected due to high operating temperatures of some components.
©
November
1994
Physio-Control
Corporation
All
Rights
Reserved
4-3