Part 2 Isolating and Solving Monitor Problems

Message

Cause of Failure

Remedy

 

 

 

"SpO2 Noisy Signal"

Excessive patient movement or electrical

Try to reduce patient movement,

 

interference are causing irregular pulse

or to relieve the cable strain on

 

patterns.

the sensor.

 

 

 

"SpO2 Non-Pulsatile"

Pulse is too weak or is not detectable, or

Change the application site of

 

the application site is too thin.

the sensor, or stimulate

 

 

circulation at the current site.

 

 

 

"SpO2 Transduc Malf"

Sensor is malfunctioning.

1. Change the SpO2 sensor as

 

 

soon as possible.

 

 

2. Return the faulty sensor to

 

 

your biomedical

 

 

department.

 

 

 

"Temperature Probe

Monitor is not detecting temperature

Check that the temperature probe

Disconnect"

reading.

is properly connected to the

 

 

monitor.

 

 

 

Isolating the

Defective

Component

You can use the following table to isolate and solve problems which may occur in the monitor.

Symptom

Cause of Failure

Remedy

 

 

 

The battery symbol is not

A battery is not present in the

Install a charged battery (see “Removing

displayed

monitor, the battery is defective,

the Battery” on page 7-4). If a battery is

 

or there is a bad connection.

already present, remove it and refit the

 

 

battery making sure to push is completely

 

 

into position. Check the connection wires

 

 

to make sure wires are secured to battery.

 

 

 

Some or all numerics or

Parameters are switched off.

Switch parameters on.

waves are not displayed

No accessories are connected.

Connect the required accessories. If

 

 

 

connections are secure, replace the suspect

 

 

accessory.

 

 

 

Monitor screen appears dim

Brightness not properly adjusted.

Adjust brightness using Contrast button.

 

Display backlight tube worn.

Replace backlight tube according to

 

 

instructions in “Replacing the Backlight

 

 

Tube” on page 7-9.

 

 

 

Monitor screen is blank

Display backlight tube worn or

1. Check the backlight tube connector

 

loose connection.

2. Replace the backlight tube

 

Main PCB module malfunction.

Replace the Main PCB module according

 

to instructions in “Removing the Main

 

 

 

 

PCB Module” on 7-12.

 

 

 

6-8Troubleshooting

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Philips 862478, 862474 manual Isolating Defective Component, Symptom Cause of Failure Remedy

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