Troubleshooting; Introduction; How To Use This Section; Who Should Perform Repairs - Nellcor OXIMAX N-595 Service Manual

T r o u b l e s h o o t i n g

Introduction

How To Use
This Section
Who Should
Perform
Repairs

Troubleshooting

Guide
N-595
This section explains how to troubleshoot the N-595 if problems arise. Tables
list possible monitor difficulties, along with probable causes, and
recommended actions to correct the difficulty.
Use this section in conjunction with Performance Verification on page 9, and
Spare Parts on page 69. To remove and replace a part you suspect is
defective, follow the instructions in Disassembly Guide on page 51. The
circuit analysis section in the Technical Discussion on page 109, offers
information on how the monitor functions.
Only qualified service personnel should open the monitor housing, remove
and replace components, or make adjustments. If your medical facility does
not have qualified service personnel, contact Nellcor's Technical Services or
your local Nellcor representative.
Problems with the N-595 are categorized in Table 4 on page 43. Refer to the
paragraph indicated for further troubleshooting instructions.
Note: Taking the recommended actions discussed in this section will correct
the majority of problems you may encounter. However, problems not
covered here can be resolved by calling Nellcor's Technical Services
or your local Nellcor representative.

Table 4: Problem Categories

Problem Area
1. Power
• No power-up on AC and/or DC
• Fails power-on self-test
• Powers down without apparent cause
2. Buttons
• monitor does not respond properly to
buttons being pressed
Refer To
Power on page 44
Buttons on page 45
43