GE S5 Service Manual

Display Unit for F-CM(C)1 (Rev. 04), F-CM(C)REC1 (Rev. 01)
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                                          Document no. M1031520-02
Figure 5 Display Controller Block Diagram
2.5 MEM section
2.5.1 Memory Card interface
The memory interface consists of a PD6722 controller and two PCMCIA compatible card sockets. 
Both sockets consist of 60 signal and 8 power connections. The controller communicates with the 
CPU. Card insertions and removal are also detected by the controller.
The MemCards are PCMCIA-ATA...

Datex-Ohmeda S/5 Compact Anesthesia and Compact Critical Care Monitors
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Document no. M1031520-02                                                                           
Figure 6 Memory Section Block Diagram
2.6 NET section
The Ethernet interface controller is basically the heart of the NET section. The interface controller 
communicates with the CPU section through the CPU bus. The section also contains a 4k SRAM 
memory.
The network interface controller transmits data packets to the Datex-Ohmeda...

Display Unit for F-CM(C)1 (Rev. 04), F-CM(C)REC1 (Rev. 01)
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                                          Document no. M1031520-02
Figure 7 Central Processing Board, block diagram 
2.6.1 Ethernet interface
The data transformer is designed by Datex-Ohmeda and it is hospital grade approved.
Adapter’s 10BASE-T is an interface with low-pass filters on the unisolated side of the transformer. On 
the isolated side there is a common mode choke for both transmitting and receiving lines.
The three LEDs on the...

Datex-Ohmeda S/5 Compact Anesthesia and Compact Critical Care Monitors
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Document no. M1031520-02                                                                           
2.7 Wireless LAN
Datex-Ohmeda Wireless Network is an extension to, or an alternative for, a wired Datex-Ohmeda 
Network. It provides same network services than the wired Datex-Ohmeda Network.
The monitor network is a local area network based on standard Ethernet technology. The monitor 
network is formed by connecting one Central and...

Display Unit for F-CM(C)1 (Rev. 04), F-CM(C)REC1 (Rev. 01)
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                                          Document no. M1031520-02
Figure 8 Central Processing Board parts
2.8 Front Unit
NOTE: The LCD display backlight circuit runs on a high voltage. Do not touch the inverter board or 
the backlight tube leads when powered.
Front Unit includes an LCD display component, Inverter Board, Connector board and Keyboard.
The Front Unit is connected to the Central Processing Board with two cables: video signal...

Datex-Ohmeda S/5 Compact Anesthesia and Compact Critical Care Monitors
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Document no. M1031520-02                                                                           
2.8.1 Backlights
The backlight consists of two replaceable cold-cathode fluorescent tubes driven by a separate 
inverter board.
2.8.2 Connector board
The connector board is used for connecting the backlight power, keyboard and ComWheel signals 
between the Central Processing Board and the Front Unit. 
2.8.3 Keyboard 
There are two...

Display Unit for F-CM(C)1 (Rev. 04), F-CM(C)REC1 (Rev. 01)
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                                          Document no. M1031520-02
2.10 Connectors and signals
2.10.1 External connectors
Figure 9 External connections of Compact Monitor frame F-CM(C)1 rev.04 
(1) Air filter
(2) NET connector
(3)  NET ID connector (not used with N-CMW)
(4) Recorder (optional)
(5) SYNC connector
(6)  Connector for external keyboard (anesthesia record keeping solution keyboard), K-CREMCO or 
Barcode Reader
(7) Potential...

Datex-Ohmeda S/5 Compact Anesthesia and Compact Critical Care Monitors
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Document no. M1031520-02                                                                           
Figure 10 External connectors of Compact Monitor Frame rev.00...03
(1) Dust filters
(2)  Recorder unit (optional)
(3)  Connector for factory use only
(4) Synchronization connector
(5)  Connector for external keyboard (anesthesia record keeping solution keyboard), K-CREMCO or 
Barcode Reader
(6)  Potential equalization connector
(7)...

Display Unit for F-CM(C)1 (Rev. 04), F-CM(C)REC1 (Rev. 01)
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                                          Document no. M1031520-02
DIS connector, X5 DIS interface 
Network connector, X5
Coding element connector, X4
Direct ECG (pin 7)
Delay (max.): 15 ms
Gain ECG (in)/ECG (out): 1 mV/1V
NOTE: The direct ECG out signal is not available with modules M-ESTP rev. 01, M-EST rev. 00 and 
M-ETP rev. 00.
Nurse call (pin 8)
The nurse call signal is generated by the red and yellow alarms. When activated, the signal...

Datex-Ohmeda S/5 Compact Anesthesia and Compact Critical Care Monitors
18
Document no. M1031520-02                                                                           
Keyboard connector, X9
Synchronization connector, X8
Direct ECG (PIN 3):
Delay (max.): 15 ms
Gain ECG (in)/ECG (out): 1 mV/1V
NOTE: The direct ECG out signal is not available with modules M-ESTP rev. 01, M-EST rev. 00 and 
M-ETP rev. 00.
Pressure out (PIN 4):
P1 from hemodynamic module
Gain Signal (out) / Pressure (in): 1V/100 mmHg...