GE S5 Owners Manual

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To change the LCD backlight
- Disconnect the connector from the inverter board.
- Push the lid beside the backlight to release  the backlight tube. Pull the backlight carefully 
out.
NOTE: Do not bend the backlight tube.
NOTE: Do not touch the backlight tube with your hands.
To separate the LCD display from the frame 
unit
- Remove the four (T10) screws holding the  display to the frame unit.
- Disconnect the connector from the inverter  board.
- Lift the display carefully up.
- Disconnect the LCD display flat cable carefully  from the display.
NOTE: When reassembling the LCD display, be careful that no dirt or finger prints are left 
between the LCD display element and the protection glass window.
NOTE: Do not use excessive force when fastening the display to the frame. Fastening the 
screws too tightly might bend the display too  much and break it. The screws must also be 
fastened gradually, first fasten all screws slightly, then more tightly. 
						

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3.3.2 Handling and storage of LCD display component
Handling of LCD display comp onent and protective window
If the LCD Display component surface becomes dusty, wipe it gently with absorbent cotton, 
chamois or other soft material. If necessary, breathe onto the display surface and wipe 
immediately. The display surface may also be  cleaned using a small amount of normal hexane. 
Do not use acetone, toluene or alcohol because  they cause chemical damage to the polarizer.
1. Wipe off saliva and water drops as soon as possible. Their prolonged contact with the  polarizer cause deformations and color fading.
2. Do not open the component case because inte rnal circuits are sensitive to electrostatic 
discharges.
Taking a spare part LCD Display component or a display shield into use:
Peel off the protective film slowly (in more th an 10 seconds) from the display or protective 
window surface. Fast peeling may generate enough static electricity to destroy the LCD Display 
component.
Storaging an LCD display component  as a spare part for a long period
1. Store the display in a dark place. Do not expose  it to sunlight or fluorescent light. Keep the 
temperature between 5 °C and 35 °C / 41 °F and 95 °F at normal humidity.
2. The polarizer surface should not come into contact with any other object. It is  recommended that the display unit is stored in the container in which it was originally 
shipped. 
						

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To remove the  inverter board
NOTE: The inverter board is sensitive to bending.
- Remove the two (T10) screws and the insulator plate.
- Disconnect the backlight  connector(s) and the 
inverter cable connector. 
NOTE: When reassembling make sure that the 
connectors are fastened properly.
Inverter Board F-FM(W)-01
Inverter Board F-FM(W)-00
NOTE:  When replacing the Inverter board, fasten the inverter screws gently, using only as 
much force as necessary to fasten the board firmly enough in place. The screws must not be 
fastened so tightly that the board  will be bent from around the screws.
To remove the handle
- Remove the two screws (T15) holding the 
handle to the handle guide unit. 
						

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To remove the EMC shield
- Remove the 14 screws (T10) holding the shield to the frame unit. One of the screws is under 
the Network connection cable. Lift the shield 
carefully up.
NOTE: When reassembling the monitor, 
remember to connect the grounding wire of the 
Sync connector unit to the EMC shield. 
Now you can access the following field 
replaceable spare parts. Follow the instructions 
below:
- “To remove the handle guide unit”
- “To remove the CPU board”
- “To remove the loudspeaker unit”
- To remove the Network cable, disconnect the  cable connectors from the CPU board and the 
Network connector board.
To remove the ha ndle guide unit
- Remove the WLAN antenna from the handle 
guide.
- Remove the two screws (T10) holding the  handle guide unit to the frame. 
						

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To remove the CPU board
- Disconnect the following cables from the CPU board:
•  loudspeaker cable
•  Sync connector cable 
•  interconnection board connector cable
•  network connection cable 
- Remove the eight screws (T10) holding the  CPU board to the frame.
- Lift the CPU board carefully up and remove it  from the frame.
To remove the  loudspeaker unit
- Remove the two screws (T10) holding the 
loudspeaker unit to the frame.
- Disconnect the loudspeaker cable from the  CPU board. 
						

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To remove the interconnection board
- Remove the three screws (T10) holding the plastic flex board cover.
- Turn the frame around. Remove the two  screws (T10) holding the flex board to the 
frame.
- Disconnect the interconnection board  connector from the module bus cable.
NOTE: When reassembling the monitor, check 
that a cellular rubber sealing is attached to the 
module bus cable connector.
- Remove the interconnection board carefully  from the frame. 
						

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To remove the power supply frame
- Remove the two screws (T15) holding the power supply frame to the inner frame.
- Now you have access to replace the inner  frame and Modulebus cable unit sub-
assembly.  
						

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3.4 Batteries
3.4.1 Battery indicators
The S/5 FM messages, screen symbols and front panel LED indicators tell the user about the 
status of the batteries. For screen symbols, see “Part 1 Symbols”. For LED indicators, consult the 
table below and for messages, see section “Troubleshooting.”
Table 5 Battery indicators
Screen symbol Explanation Front panel battery LED indicators
Monitor is battery 
powered. Batteries are 
fully charged and the 
size of the green bar 
indicates the charging 
level.green lit
orange dark
Monitor is battery 
powered. Battery A is 
empty, battery B is ok.  green lit
orange dark
Monitor is battery 
powered. Battery A 
failure, battery B is ok. green lit
orange flashing
Monitor is mains 
powered. Battery A is 
being charged (white 
bar), battery B is already 
charged. green dark
orange lit
Monitor is battery 
powered. Battery A is 
missing, battery B is ok. green lit
orange flashing
        
     no screen symbol Monitor is mains 
powered. No battery 
backup: batteries have 
failed or they are not 
inserted. green dark
orange flashing
B
BA
AB
B
B
B 
						

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3.4.2 To change the batteries
Figure 14 Inserting a battery
(1)  Open the lid of the battery compartment located behind the handle by sliding it to the left.
(2)  Lift up the battery you want to change. Check the indicators and messages on the screen to make sure that you change  the battery with lower charge.
(3)  Push in the new battery. Make sure that the  charging indicator is facing forward and push 
the battery down all the way. Check the monitor indicators.
CAUTION After having replaced a battery, alwa ys make sure that you close the battery 
compartment by sliding the lid bac k to the right until it clicks.
WARNING Do not incinerate a battery  or store at high temperatures as it will explode.
3.4.3 To check the battery
Figure 15 Capacity indicator on the battery
Check the battery charging level by pressing the test 
button on the battery as indicated in the drawing on the 
left. 
The green bar lights up and the number of lit segments 
indicates the charging level: the more lit segments, the 
higher the capacity level.  
						

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3.4.4 Conditioning the batteries
Condition the batteries regularly to maintain their useful life. Condition a battery every six 
months or when the message ‘Condition Battery x’‘ appears on the screen. Always observe the 
messages and symbols on the screen to see the battery status. You can also check the status 
through  Monitor Setup  - Battery Setup . Conditioning a battery is best done on an external 
charger. If you do not have an external  charger, proceed according to the following 
instructions.
NOTE: You cannot condition batteries during patient monitoring. Always disconnect the 
modules first.
1. Continue normal battery use until the green bar of a battery charge indicator is less than  3/4 of the full height. After th is, remove the battery. Continue monitoring with one battery 
until its charge is  less than 3/4 of the full capacity.
2. Insert both batteries and connect the moni tor to the power supply. The monitor starts 
charging both batteries, and the capacity indicators scroll accordingly. Keep charging the 
batteries until both capacity indicators are full height.
3. Continue charging for another two hours. Af ter this, check that the orange battery LED in 
the front panel is no longer on. If it is, continue charging until it goes off.
4. Disconnect the monitor from the power supply and leave it on until the batteries run out  and the monitor switches off. Wait for another 15 minutes.
5. Reconnect the monitor to the power supply  and turn it on. Continue charging the 
batteries until both capacity indicators are full height and no longer scrolling.
6. Keep charging for another two hours. After this, check that the orange battery LED in the  front panel is no longer on. If it is, continue charging until it  goes off to indicate that the 
battery conditioning is complete.
NOTE: If only one battery is inserted during co nditioning, the orange LED will keep flashing and 
will not go off.
3.5 To replace the fuses
3.5.1 Primary fuses
Pull out the fuse holder under the mains connec tor at the back of the monitor. Replace the 
fuses with fuses of exactly the same type and rating.
3.5.2 Fuse for external DC
External DC power for future use only.
Remove the rear cover. Replace the fuse that is located inside the fuse holder under the 
receptacle with a fuse of exactly the same type and rating.
3.6 To download the software on CPU board
In case of a faulty CPU board refer first to se ction “To remove the CPU board“ and then follow 
the instructions for down loading service software.
NOTE: All user settings will be lost afte r downloading of new monitor software.
NOTE: During the downloading of software the serial number of the monitor is written on the 
software card. The software can then be down loaded again to the same monitor, but not to 
any other monitor. (For F-FM(W)-00 frame version).