Philips Fm2 Service Manual

Safety Testing
Chapter 8 - Test and Inspection Matrix
89
System Safety Test
Whenever you connect a monitor to an obstetrical system such as Agilent OB 
TraceVue you must perform the System Test. The System Test consists of the 
Enclosure Leakage Current tests (normal and single fault condition) as described 
on 86. You must run this test when connecting either a new or repaired monitor. Table 23 Patient Leakage Current Values
Test Condition PolarityMaximum Allowable 
Leakage Current 
(µA)
Type B & BF...

Testing Transducers
90Chapter 8 - Test and Inspection Matrix
Testing Transducers
Testing Toco Transducers 
Visual CheckCheck the transducer for signs of damage. Ensure that there are no cracks in the 
transducer housing or dome, in the cable or the connector plug.
Electrical
Check1. Turn on the monitor.
2. Connect the transducer to the Toco socket. 
3. Check that the display acknowledges the connected transducer in the 
Toco frame of the main monitoring screen.
4. Lay the transducer face up on a flat...

Testing Transducers
Chapter 8 - Test and Inspection Matrix
91
transducer touches the flat surface only with the button and that the 
transducer is parallel to the flat surface.
8. The Toco display should read between 20 and 40 units above the 
Baseline.
Figure 12 Testing a Toco Transducer
9. If the test fails, repeat with another transducer. If it still fails, refer to 
Chapter 5,“Troubleshooting”.
Toco display = 5, 10, 15, or 20
depending on Baseline
setting  Toco display = 20 - 40 Toco
 units above the...

Testing Transducers
92Chapter 8 - Test and Inspection Matrix
Testing Ultrasound Transducers 
Visual CheckCheck the transducer for signs of damage. Ensure that there are no cracks in the 
transducer housing or dome, in the cable or the connector plug.
Electrical
Check1. Turn on the monitor.
2. Connect the transducer(s) to the US 1 or US 2 socket. 
3. Check that the display acknowledges the connected transducer(s) in the 
Ultrasound frame of the main monitoring screen.
4. Increase the loudspeaker volume to...

Testing Transducers
Chapter 8 - Test and Inspection Matrix
93
7. The transducer contains seven piezo-electric crystals.
Figure 14 Position Of Crystals in an Ultrasound Transducer
8. Holding the transducer in one hand, move a flat-bottomed pencil or 
similar object repeatedly towards and then away from each crystal. The 
distance between the pen and the transducer surface should be about 2 to 
3 cm.
Figure 15 Testing the Crystals in an Ultrasound Transducer
9. Check that a noise is heard from the...

Testing Transducers
94Chapter 8 - Test and Inspection Matrix
10. If the test fails, repeat using another transducer. If it still fails, refer to 
Chapter 5,“Troubleshooting”. 

Index
Index95 A
A/D values,27, 29
accessory testing
transducers
,22
Toco
,90
US
,92
assembly drawings
,71
B
battery
charging time
,83
checking
,20
disposal
,44
importance of polarity
,44
observing polarity
,43
recharging
,83
removal
,43
removal/replacement 
precautions
,40
replacement
,44
storing
,83
using
,82
block diagram
of operation
,7
C
cables
null-modem
,14
parallel printer
,18
recorder
,18
cautions
,3
cleaning
,11
closed case disassembly.See 
disassembly procedures
communications ports
parallel...

96Index attention characters (AT)
,15
default entries
,16
&K0
,16
E0
,16
X0
,16
X4
,16
modem
default
,15
user-customizable
,15
return characters
,15
installation
,6
mountings
,10
intended readership
,2
prerequisites
,2
interface
parallel
,13
serial
,13
interface board
removal
,55
interface PCB
removal
from rear conn. PCB
,56
replacing
on rear connector PCB
,56
K
keypad
description
,9
removal
,54
replacement
,54
L
LCD
assembly
high voltage precautions
,50
replacing
,51
assembly removal
,50
backlight
,8...

Index97
power-on indicator icon,4
power-on jingle
,21
power-on self-test
,2, 19, 20, 81
checksum
,20
error and error detection
,21
explanation
,20
jingle
,21
performing
,21
watchdog timer
,21
power-up defaults
,25–29
alarm settings
,25
data transfer
,26
destination
,26
date
,26
format
,26
explanation
,25
language
,26
modem init string
,25
patient ID
,26
phone number
,25
recorder paper
speed
,26
recorder paper style
,26
settings
,25
time format
,26
Toco baseline set-point
,25
US trace separation
,25...

98Index packing for
,5
side connector PCB
removal
,59
side panel
removal
,59
small parts kit
,63
software upgrades
RS-232 interface
,13
spare parts
,63–??
assembly drawings,71
exchange assemblies
M2922A
,64
M2925A
,64
exchange parts
,64
M2922-40003
battery kit
,68
M2922-44301
keypad kit
,69
M2922-60406
navigation wheel kit
,69
M2922-64001
housing kit
,67
M2922-64002
speaker kit
,68
M2922-64004
display kit
,69
M2922-66505
side connector PCB kit
,70
M2922-66510
interface PCB kit
,70
M2922-66511
rear...