GE S5 Service Manual
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Table of figures
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Document no. M1031520-02
Table of figures
Figure 1 Compact Anesthesia Monitor ................................................................................................................ 1
Figure 2 Basic structure of Display Unit .............................................................................................................. 4
Figure 3 Central Processing Board Block Diagram .............................................................................................. 6
Figure 4 UPI Section Block Diagram ................................................................................................................... 7
Figure 5 Display Controller Block Diagram .......................................................................................................... 9
Figure 6 Memory Section Block Diagram .......................................................................................................... 10
Figure 7 Central Processing Board, block diagram ............................................................................................ 11
Figure 8 Central Processing Board parts ........................................................................................................... 13
Figure 9 External connections of Compact Monitor frame F-CM(C)1 rev.04 ........................................................ 15
Figure 10 External connectors of Compact Monitor Frame rev.00...03 ................................................................. 16
Datex-Ohmeda S/5 Compact Anesthesia and Compact Critical Care Monitors iv Document no. M1031520-02
Display Unit for F-CM(C)1 (Rev. 04), F-CM(C)REC1 (Rev. 01)
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Introduction
This section provides information about the maintenance and service of the following products:
•S/5™ Compact Anesthesia Monitor F-CM1 Display Unit and S/5™ Compact Critical Care
Monitor F-CMC1, Display Unit (including UPI function, LCD display, Command board function,
Display Controller function, NET function, MEM function, DIS function, Display Unit power
supply unit) or S/5™ Compact Anesthesia Monitor F-CMREC1 Display Unit and S/5™ Compact
Critical Care Monitor F-CMREC1 Display Unit (in addition to above mentioned parts also a
built-in recorder).
•Software Licenses L-CANE05/A, L-CICU05/A.
All the service menus related to the monitor are described in a separate “Service Menu” slot and the
spare part lists in “Compact Monitors Spare Parts” slot.
Figure 1 Compact Anesthesia Monitor
Datex-Ohmeda S/5 Compact Anesthesia and Compact Critical Care Monitors 2 Document no. M1031520-02 1 Specifications 1.1 S/5 Compact Monitor, F-CM1, F-CMREC1, F-CMC1, F-CMCREC1; Display Unit Display Unit Dimensions, D x W x H 55 x 335 x 270 mm (2.2 x 13.2 x 10.6 in) Weight
Display Unit for F-CM(C)1 (Rev. 04), F-CM(C)REC1 (Rev. 01)
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Data transmission IEEE 802.11b compliant,
Direct Sequence Spread Spectrum (DSSS)
Roaming Automatic roaming between the Datex-Ohmeda Centrals
Access Points
Certificates Wi-Fi certified
Encryption Wired Equivalent Privacy (WEP) 40 and 128 bit
WLAN adapter PC card type with antenna
1.6 Recorder option
Power consumption 3 W
Printer type Thermal array
Print resolution Vertical 8 dots/mm (200 dots/inch)
Horizontal 32 dots/mm (800 dots/inch)
at a speed of 25 mm/s and slower
Paper width 50 mm, printing width 48 mm
Traces Selectable 1, 2, or 3 traces
Print speed 1, 6.25, 12.5, 25 mm/s
1.7 Digital outputs of Display Unit
Nurse call Low State: 0-0.8V; High State: 2.8-5V
Generated on red and yellow alarms
Defibrillation Synchronization State 0: 0-0.8V; state 1: 2.8-5V
Delay (max): 35 ms from R peak
Signal active time 10 ms
Serial Output Asynchronous
Serial data interface, uses RS-232 standard
Baud rate max 115.2 kbps
Parity: None; Data bits: 8; Stop bit: 1
Datex-Ohmeda S/5 Compact Anesthesia and Compact Critical Care Monitors 4 Document no. M1031520-02 2 Display Unit functional description The Compact Monitor Display Unit includes the following parts: •Central Processing Board (CPB): includes Display Controller, UPI, CPU and optionally Network and MemCard functions •Color LCD display and its backlight inverter •Connector board •Command board •Display Unit DC/DC power supply •Fan and loudspeaker Figure 2 Basic structure of Display Unit 2.1 CPU section The CPU section takes care of the central processing. The main features are: •486 processor •Internal clock frequency 100 MHz •32 Mbytes DRAM •8 Mbytes program flash memory •32 Kbytes static RAM with real time clock •4 channel UART: •2 serial channels with signals in AC-logic level 12,1 Display BacklightInverter Connector Board KeypadKeypad CPU BOARD Net Unit Sync. Unit display_basic_structure.vsd
Display Unit for F-CM(C)1 (Rev. 04), F-CM(C)REC1 (Rev. 01)
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•2 serial channel signals in RS232-level
•Programmable alarm sound generator
•PC-card slot for software updates
2.1.1 Standby and Display Unit power down
When the monitor is turned to standby, NMI-interrupt is generated by the control logic. The interrupt
signal in the Central Processing Board means that all the outputs from the CPB are switched off (i.e.
display, alarm leds, etc.). The CPU section processor enters the HALT state.
During the Halt state the DRAM refreshing cycle continues to occur, thus saving trend and patient
data and user settings stored in the DRAM. After 15 min. the Power Management Board (in the Frame
Unit) cuts of the Display Unit voltage.
If the monitor is restarted within 15 min. of the last power off, a Warm Start is performed (trends and
temporary settings will be available). If the monitor is restarted after 15 min. of the last power off, a
Cold Start is performed (trends and temporary settings will be erased).
2.1.2 Watchdogs
There are certain watchdog functions to ensure the monitor’s performance. The UPI interrupts the CPU
continuously in order to tell that everything runs smoothly. If this watchdog fails, the UPI section is
initialized. The monitor is not reset.
The CPU section has its own watchdog in order to ensure that the main software functions normally. In
software overload situation the watchdog is not refreshed, and the monitor is reset.
The Central Processing Board (the CPU section) communicates with the Power Management Board in
the Frame Unit. This communication is also used as a watchdog signal between CPB and PMB.
Datex-Ohmeda S/5 Compact Anesthesia and Compact Critical Care Monitors 6 Document no. M1031520-02 Figure 3 Central Processing Board Block Diagram 2.1.3 SRAM MT48T37V The lithium battery back-up is a 32 Kbytes static RAM with a real-time clock. CAUTION The IC contains a lithium battery. Discard the battery according to local regulations. 486 Pro cessor PC MCIASe rialEth ernetSo undUP I Chipse t Displ ay Co ntroller486 LOCAL BUS C PU BU S DRAM Rese t Log ic N on- Volatile Mem oryBoot Memo ryCode Memo ry Patient Modu les MOD ULE-B US display_central_proc_diagr.vsd
Display Unit for F-CM(C)1 (Rev. 04), F-CM(C)REC1 (Rev. 01)
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2.2 UPI section
The UPI functions as a general I/O section. It performs I/O duties assigned to it by the CPU. The main
processor and the processor on the UPI communicate through a dual-port memory (shared RAM)
which is located on the UPI section.
2.2.1 Functional Blocks
The UPI section contains the CPU bus interface, a processor, program and dual-port memories, I/O
block, and serial bus interface.
2.2.2 CPU Bus Interface
The UPI section is connected to the CPU section by CPU (ISA) bus. The following signals pass between
the UPI and CPU: data bus, address bus, reset, write and read signals.
2.2.3 Processor
The processor of the UPI section is a Hitachi H8S/2655, which functions at 16 MHz frequency.
2.2.4 Serial Bus Interface
The serial bus interface of the UPI section contains Module Bus RS485, serial RS232 and RS422
interfaces.
Figure 4 UPI Section Block Diagram
U
PI
Proce
ssor
Sh
ared
S
RAM
C
ontrol
LogicUPI-BUSCPU
BUS
Voltage
MeasTemp
Meas
Key
pad Inter
face
ComWhe
el Interfac
e
DIS-Bu
s
Mo
dule Bus
A
nalog & D
igital outp
uts
C
entral P
rocessi
ng Boa
rd
display_upi_diagr.vsd
Datex-Ohmeda S/5 Compact Anesthesia and Compact Critical Care Monitors 8 Document no. M1031520-02 2.3 Software License, L-CANE05, L-CANE05A, L-CICU05, L-CICU05A L-CICU05/L-CICU05A software is developed for critical care monitoring and L-CANE05/L-CANE05A is for anesthesia monitoring. Anesthesia record keeping capability is included in the anesthesia monitor software L-CANE05/L-CANE05A as standard. The software L-CANE05A and L-CICU05A include extended arrhythmia analysis. L-CANE05/L-CANE05A/L-CICU05/L-CICU05A is a license software. The license agreement that is delivered with the software should be archived in a secure location. A relevant license number may have to be referred when contacting GE Healthcare service/support. The license number is needed also for future software upgrades. Each of the above listed monitor software is loaded on a Central Processing Board at the factory, i.e. they are not available separately. The L-xxx05(A)S software is used for service purposes only and is stored on a separate Software Card (PCMCIA, 8 MB). See section “Downloading the software on empty Central Processing Board”. The U-xxx05(A) software is used for upgrade purposes and is stored on a separate Software Card (PCMCIA, 8MB). See section “Downloading the software on empty Central Processing Board”. CAUTION The software card is not write protected. For safety reasons do not use software cards for any other purpose, or on any other platforms than they are designed for. 2.4 Display controller section The display controller is integrated to the Central Processing Board. The processor on the CPU section transmits graphics information through the CPU bus to the display memory on the Display Controller section. The Display Controller section supports SVGA resolution. The resolution is automatically selected for the LCD display in use. The resolution is set to 800 x 600. 2.4.1 Display memory The Display memory contains digital display data. The size of the memory is 1 Mbyte making an 800 x 600 display resolution with 256 colors possible. The memory consists of a 1Mbyte DRAM. 2.4.2 Display controller resolution The resolution of the display controller is set to SVGA, i.e. 800x600 resolution.