GE S5 Service Manual

							Frame Unit for F-CM(C)1 (Rev. 04), F-CM(C)REC1 (Rev. 01)
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                                          Document no. M1044470-01
14. Content of service log
Select Service Log from the menu. Check the contents of the Service Log for possible problems. 
If the monitor contains the recorder unit, record the Service Log on the recorder by selecting 
Record Log.

15. Voltages
Check the power supply unit output voltages through the service menu: 
Monitor Setup
Install/Service (Password 16-4-34)
Service (password 26-23-8)
Frame
Power Supply
The output voltages should meet the following ranges:
Preset monitor settings:
Record/Print
Record Waveforms
Waveform 1 --> ecg1
Waveform 2 --> p1
Waveform 3 --> p2
Delay --> Off
Paper Speed --> 6.25 mm/s
Length --> 30 s
16. Module communication
Connect a patient simulator to the module.
Enter the ESTP : ECG service menu:
Monitor Setup
Install/Service (Password 16-4-34)
Service (password 26-23-8)
Parameters
ESTP : ECG
Check that the Timeouts, Bad checksums and Bad c-s by mod values do not increase faster 
than by 5 per second.+15 V 14.50...15.50 V
-15 V -14.50...-15.50 V
+15 VD 14.50...15.50 V
+5 V 4.80...5.30 V
VBUS 10.00…17.00 V
+12 V 11.50…12.50 V
+3.3 V 3.00…3.60 V
VBUS 10.00…17.00 V 
						

							Datex-Ohmeda S/5 Compact Anesthesia and Compact Critical Care Monitors
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Document no. M1044470-01                                                                           
Change the module into the other slot. When the module is recognized, check that the values do 
not still increase faster than by 5 per second.

17. Battery voltage
Enter the Battery service menu:
Monitor Setup
Install/Service (password 16-4-34)
Service (password 26-23-8)
Frame
Power Supply
Battery
Check that the shown Battery Voltage value is within 10 – 14V.

18. Monitor temperature
Check that the shown Monit Temp value is within 20 - 40.

19. Battery operation
Disconnect the power cord (without switching the monitor to standby).
Check that the monitoring continues normally. The battery indicator should appear on the upper 
right hand corner of the screen.
 
20. Mains power recognition
Reconnect the power cord.
Check that the LCD display screen brightness increases back to normal and the monitoring 
continues without problems. The battery indicator should be replaced by the text CHARGE.

3.2.6 Recorder Unit
21. Recorder messages
Open the recorder unit cover. 
Check that the message ‘Recorder: Cover open’ appears on the screen, then close the cover.
 
						

							Frame Unit for F-CM(C)1 (Rev. 04), F-CM(C)REC1 (Rev. 01)
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                                          Document no. M1044470-01
22. Recording
Press the key 
Record Wave and check that the module starts recording the selected 
waveforms. Press the key
 Stop on the module to stop recording.
NOTE: InvBP waveforms are not recorded without a patient simulator.
NOTE: If no recording appears, check that the paper roll is installed in a correct way. Only one side of 
the paper is printable.

23. Paper speed 
Press the key 
Record Wave again and this time wait until the recording stops. Check that the 
length of the recorded waveform scale is 18.7 cm (1.5 cm).
Change the paper speed setting to 1 mm/s:
Record/Print
Record Waveforms
Paper Speed --> 1 mm/s
Press the key 
Record Wave and wait until the recording stops. Check that the length of the 
scale is now 3.0 cm (± 0.5 cm).

24. Quality of recording
Check that the quality of the recordings is acceptable.

3.2.7 General
25. Service reset switch
Check the service reset switch.
Switch the monitor to standby and disconnect the power cord. Press the service reset switch for 
at least five seconds. Check that the LED next to the switch turns off, and also the fan turns off.
Reconnect the power cord and turn the monitor back on. Check that all trends have now been 
erased.

26. Battery capacity
Typical lifetime of the Compact Monitor Ni-MH batteries is approximately 4 years.
Test the batteries by performing the following:
•detach all modules
•keep the monitor connected to the mains power until the batteries are fully charged
•install a hemodynamic multiparameter module and disconnect the power cord
•notice the time the monitor stays on with batteries 
						

							Datex-Ohmeda S/5 Compact Anesthesia and Compact Critical Care Monitors
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Document no. M1044470-01                                                                           
Replace the batteries, if the time was less than 45 minutes.

27. Battery charging
Reconnect the power cord, switch the monitor on and enter the Battery service menu:
Monitor Setup
Install/Service (Password 16-4-34)
Service (Password 26-23-8)
Frame
Power Supply
Battery
Check that the monitor starts charging one of the batteries and all data is reasonable.

28. Service Log reset
Enter the Service Log in the service menu:
Monitor Setup
Install/Service (Password 16-4-34)
Service (Password 26-23-8)
Service Log
Clear the content of the Service Log by selecting Reset Log in the menu.

29. Electrical safety check
Perform an electrical safety check and a leakage current test.
Check that the monitor functions normally after the performed electrical safety check.

30. Final cleaning
Switch the monitor to standby, disconnect the power cord and perform final cleaning.
After cleaning, reconnect the power cord for recharging the batteries.

•Fill in all necessary documents. 
						

							Frame Unit for F-CM(C)1 (Rev. 04), F-CM(C)REC1 (Rev. 01)
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                                          Document no. M1044470-01
3.3 Disassembly and reassembly
WARNINGThe S/5 Compact Monitor is always energized by an internal battery. A short 
circuit may cause internal damage. Do not touch any exposed wiring or 
conductive surface inside, as this may cause an electric shock.
See the exploded view of the  S/5 Compact Monitor Frame Unit in the ‘Spare Parts’ slot to get quick 
unerstaning of the structure. 
3.3.1 To remove the batteries
1. Open the Bottom Plate of the Frame Unit by opening the eight screws.
2. Detach the battery cables and remove the batteries.
NOTE: Remember the order of the batteries connected to the PMB board.
3.3.2 To remove the AC/DC Unit
1. Open the four screws holding the unit at the back of the Compact Monitor .
2. Pull the AC/DC Unit carefully to avoid damaging the connector.
NOTE:  It is not allowed to repair the AC/DC power unit in the field. 
Return the faulty AC/DC power unit to GE Healthcare for service.
3.3.3 To disassemble the Side Frame Unit
1. Detach/remove the AC/DC Unit.
2. Open the three screws from the left side of the Frame Unit back plate. 
3. Loosen the long screw at the upper left corner of the Frame Unit.
4. Open the two screws at the bottom left side of the Frame Unit.
5. Pull the Side Panel Unit carefully from the connector to the PMB Board and out of the frame.
NOTE: When reassembling the Side Panel Unit, be careful not to damage the components on the PMB 
Board.
3.3.4 To detach/remove the PMB Board (Power Managemet Board)
NOTE:  It is important to remove the batteries before starting to remove the PMB Board!
NOTE: Remember the order of batteries connected to the PMB Board.
1. Disassemble the Side Panel Unit.
2. Open the Bottom Plate of the Frame Unit by opening the eight screws and remove the batteries.
3. Open the two screws holding the connector to the AC/DC Unit.
4. Open the two screws holding the connector to the Display Unit.
5. Detach the Power and Data cables from the PMB Board.
6. Open the eight screws holding the PMB Board. 
7. Pull the PMB Board carefully to detach it from the Module Mother Board. 
						

							Datex-Ohmeda S/5 Compact Anesthesia and Compact Critical Care Monitors
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Document no. M1044470-01                                                                           
3.3.5 To detach/remove the Module Mother Board
1. Detach/remove the PMB Board.
2. Unscrew the spacers to remove the Module Mother Board.
NOTE: Be carefull not to damage the service reset switch.
3.3.6 To remove the Recorder Unit
Disassemble the Side Frame Unit.
Loosen the screws and extract the recorder. 
3.3.7 Adjustment and Calibrations
It is not necessary to perform calibrations or adjustments on the Compact Monitor Frame Unit. 
						

							Frame Unit for F-CM(C)1 (Rev. 04), F-CM(C)REC1 (Rev. 01)
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                                          Document no. M0144470-01
3.4 Internal battery
WARNINGThe S/5 Compact Monitor is always energized by an internal battery. A short 
circuit may cause internal damage. Do not touch any exposed wiring or 
conductive surface inside, as this may cause an electric shock.
The monitor can be run either on mains power or on internal battery. Battery operation is initiated 
when the power cord is disconnected or when the mains power is lost during monitoring. 
The internal battery capacity is up to 2.5 hours with fully charged batteries.
NOTE: Before using the monitor for the first time, charge the battery to its full capacity (charging time 
10 hours).
3.4.1 Battery time
A symbol on the monitor screen indicates the remaining operating time of the battery. 
When about 10 minutes of battery operating time is left, a Batt low alarm is activated and the 
monitor makes one beep. 
When about two minutes of operating time is left, a new alarm Batt empty is activated.
3.4.2 Refreshing the batteries
The battery is automatically charged when the monitor is connected to mains power. Charging the 
battery depends on the discharge level of the battery. Battery charging time is ten hours to full 
capacity.
If the monitor is used mainly with the mains power, refresh the battery by charging and discharging 
the battery completely once a month to slow down loss of battery capacity.
NOTE: If the monitor is used for frequent short transportation, refresh the batteries every two weeks 
and replace the batteries every six months.
To refresh:
1. Connect the monitor power cord to power outlet for at least ten hours.
2. Remove the power cord, and turn on the monitor and let it turn off by itself (it takes about 1.5 
hours). Wait for 15 minutes. 
3. Reconnect the power cord to power outlet and charge the battery for at least ten hours. 
NOTE: Inadequate maintenance will decrease the battery capacity and the monitors operation time 
on batteries.
When charging, a charging symbol is displayed. 
During battery charging, the standby led is blinking. It lights up when the batteries are fully charged. 
						

							Datex-Ohmeda S/5 Compact Anesthesia and Compact Critical Care Monitors
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Document no. M0144470-01                                                                           
3.4.3 Replacing the batteries
1. Open the Bottom Plate of the Frame Unit by opening the eight screws.
2. Detach the battery cables and remove the batteries.
3. Insert new batteries and connect the battery cables.
NOTE: Remember the order of the batteries connected to the PMB board. 
						

							Frame Unit for F-CM(C)1 (Rev. 04), F-CM(C)REC1 (Rev. 01)
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                                          Document no. M1044470-01
4 Troubleshooting
For troubleshooting, see also section Display Unit: Troubleshooting in\
  this manual.
4.1 General 
Trouble CauseWhat to do
Monitor is not starting 1. 
On/Stby key pressed too long.
2. The batteries are empty.
3. If power cord connected. If the 
On/Stby LED is lit or blinks. AC/DC 
power unit may be faulty.
4. If the Frame unit fan is running. If 
AC/DC power unit is working, the PMB 
in the Frame Unit may be faulty.
5. 
On/Stby key may be faulty. 1. 
On/Stby key may be pressed for 
less than 10 s.
2. Connect the power cord.
3. Replace the AC/DC power unit.
4. Replace the PMB.
5. Replace the Display Unit side panel 
keyboard foil.
Monitor is not starting, the Frame 
Unit back panel LED is lit. 1. The connection between Frame Unit 
and Display Unit may be faulty.
2. Display Unit voltages are not OK.
3. Faulty Central Processing Board. 1. Check the connector and the cables 
between Display Unit and Frame Unit.
2. Replace the Display Unit DC/DC 
power board.
3. Replace the Central Processing 
Board.
The monitor starts (Frame Unit 
back panel LED is lit and a beep is 
heard), but the display remains 
black. 1. The LCD display cables are  
loose.
2. The backlights are not lit.  1. Check the LC
D cables and 
connectors on the Central Processing 
Board and in the Front Unit.
2.Connector Board cable may be loose. 
Check the cable. 
Backlights may be faulty. Replace 
them.
Backlight inverter may be faulty. 
Replace the inverter.
Module data disappears from the 
screen. Parameter module current (in PMB) too 
high. Detach and change the parameter 
module.
PMB module power section may be 
faulty. Replace the PMB.
Keyboard not working, but module 
communication is OK. Keyboard cables and connectors, or 
Connector Board cable and connector 
may be faulty. Check the Connector Board cable and 
connector. 
Check the keyboard cable connection 
to the connector board. 
						

							Datex-Ohmeda S/5 Compact Anesthesia and Compact Critical Care Monitors
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Document no. M1044470-01                                                                           
Keyboard not working, and 
module communication not 
working.UPI section of the Central Processing 
Unit not functi
oning normally. Restart the monitor.
Replace the Central Processing Board.
Keyboard partly not working.  Keyboa rd faulty.  Replace the keyboard foil.
Connector Board faulty  Re place the Connector Board.
Display temperature high and 
Check dust filter messages. The temperature insi
de the display unit 
has been more than 55 °C for two 
minutes at the minimum. Check and change the dust filter if 
necessary.
‘Battery failure’ message on the 
display. 1. Problem in communication between 
Display Unit and Frame Unit (the PMB 
serial number and other data faulty in 
Service View).
2. PMB in Frame Unit may be faulty. 1. Check the connec
tors and cables 
between Display Unit and Frame Unit.
2. Replace the PMB. 
Frame temperature high and 
Check dust filter messages. The temperature insi
de the frame is 
more than 55  °C. Check and change the dust filters if 
necessary.
Battery temperature high and 
Check dust filter messages. The temperature of 
the batteries is 
more than 53 °C. Check and change the dust filters if 
necessary.
Display Unit is too warm. 1. Display Unit Fan is no t working. 1. Check the Fan cable is connected to 
the correct connector.
Recorder is not working properly. 1 . Recorder communication problem.
2. Problem in voltages in Frame Unit. 1. Check the connec
tors and cables 
between Display Unit and Frame Unit.
2. Check the Frame Unit voltages from 
the service menu. If not OK, replace the 
PMB.
After shut down, the trend and 
patient data does not remain 15 
min in the memory. 1. The On/Stby switch has been 
pressed for over 10 s. (= service reset)
2. Faulty PMB. 1. When switching off, the On/Stby 
switch has to be pressed for less than 
10 s. 
2. Replace the PMB.
Trouble CauseWhat to do