Disassembly And Assembly Guide; Introduction; Tools Require; Preliminary Procedures And Precautions - Nellcor N-180 Service Manual

SECTION 6: DISASSEMBLY AND ASSEMBLY GUIDE
roof Introduction
i Tools Required
Preliminary Procedures and Precautions
Post Assembly Testing Requirements
Top Level View of Monitor Assemblies
Wiring Connections
Procedures
INTRODUCTION
This section describes how to disassemble the monitor when required for
parts replacement, testing or troubleshooting. Assembly procedures are the
reverse of dissasembly.
TOOLS REQUIRED
To disassemble the monitor you need
+ Number one Phillips head screwdriver
e Number two Phillips head screwdriver
* 'Tweezers or small needle-nose pliers (not absolutely required but handy
for retrieving dropped screws)
¢ Metric nut driver set or set of small metric wrenches
PRELIMINARY PROCEDURES AND PRECAUTIONS
In some cases the PCBs have components on both sides. Handle PCBs with
care. Before opening or disassembling the monitor, do the following:
1. Attach a grounding strap to your wrist.
2. On the monitor rear panel, set power switch to off.
WARNING: Failure to remove the AC power cord in the next step could
expose you to lethal AC voltage.
8. Ifattached, disconnect the AC power cord, oximetry sensor, and printer
cable,
——————— POST ASSEMBLY TESTING REQUIREMENTS
Tf you remove and replace electrical components, perform the tests in
Section 7, Performance and Safety Tests. ^
TOP LEVEL VIEW OF MONITOR ASSEMBLIES
Figure 6-1 is an exploded view of the monitor that shows the relationship of
three major assemblies: the top cover, the front panel assembly and the
bottom cover assembly. Four serews hold the bottom cover assembly to the
top cover. Each major assembly is in turn composed of minor assemblies.
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