Datex-Ohmeda S-5 Service Manual S5 CPU Board B-CPU5

Datex-Ohmeda

S/5™ CPU Board, B-CPU5 (Rev. 00)

S/5™ CPU Board, B-CPU4 (Rev. 01)

Software Cards

Technical Reference Manual

Datex-Ohmeda Inc.
3030 Ohmeda Drive
MADISON, WI 53718
U.S.A.
Tel. [phone] Fax [phone]

www.us.datex-ohmeda.com

All specifications are subject to change without notice.

Document No.8002948-0

October 2001

Datex-Ohmeda Division,

Instrumentarium Corp.

P.O. Box 900, FIN-00031

DATEX-OHMEDA, FINLAND

Tel. [phone] Fax [phone]

www.datex-ohmeda.com

 Instrumentarium Corp. All rights reserved.

Table of contents

TABLE OF CONTENTS

CPU Boards and Software Cards

TABLE OF CONTENTS i

Introduction 1

1 Specifications 2

1.1 Electrical requirements .............................................................................................................................2

1.2 Environmental requirements .....................................................................................................................2

2 Functional Description 3

2.1 CPU board, B-CPU5/B-CPU4 ....................................................................................................................3

2.2 Software Cards, U-xxxxxx/L-xxxxxxS/S-xxxxxS..............................................................................................5

2.3 Connectors and signals.............................................................................................................................6

2.3.1 Internal connectors...........................................................................................................................6

3 Service Procedures 7

3.1 General service information.......................................................................................................................7

3.2 Service check ...........................................................................................................................................7

3.2.1 Recommended tools ........................................................................................................................7

3.3 Disassembly and reassembly..................................................................................................................10

3.3.1 Downloading/replacing software on CPU Board, B-CPU5/B-CPU4 ...................................................10

3.3.2 Performing Factory Reset ................................................................................................................12

3.4 Adjustments and calibrations..................................................................................................................12

4 Troubleshooting 13

4.1 Troubleshooting flowcharts......................................................................................................................13

4.1.1 Monitor..........................................................................................................................................13

4.1.2 Digital section................................................................................................................................14

4.1.3 Software Card ................................................................................................................................15

4.2 Error messages.......................................................................................................................................16

5Service menu 17

5.1 Service menu structure ...........................................................................................................................17

5.2 Service...................................................................................................................................................18

5.3 Service menu .........................................................................................................................................19

5.4 Frame ....................................................................................................................................................19

5.4.1 Memory .........................................................................................................................................20

5.4.2 Communication..............................................................................................................................20

5.5 Parameters.............................................................................................................................................21

5.6 Set/Test.................................................................................................................................................22

5.6.1 Country Settings .............................................................................................................................23

5.7 Service Log.............................................................................................................................................24

5.7.1 Error History ...................................................................................................................................24

5.7.2 Event History ..................................................................................................................................25

5.7.3 Alarm History..................................................................................................................................25

5.7.4 Maintenance..................................................................................................................................26

5.8 Record Data ...........................................................................................................................................28

5.9 Remote Access.......................................................................................................................................28

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6 Spare Parts 29

6.1 Spare parts list.......................................................................................................................................29

6.2 Products ................................................................................................................................................29

6.2.1 CPU boards and software ...............................................................................................................29

6.2.2 CPU Board, B-CPU5/B-CPU4 .........................................................................................................29

7 Earlier Revisions 30

APPENDIX A 31

Service check form A-1

TABLE OF FIGURES

Figure 1 B-CPU5 / B-CPU4 ................................................................................................................................1

Figure 2 CPU board block diagram, B-CPU5/B-CPU4..........................................................................................4

Figure 3 Monitor troubleshooting flowchart.......................................................................................................13

Figure 4 Digital section troubleshooting flowchart .............................................................................................14

Figure 5 Software Card troubleshooting flowchart .............................................................................................15

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Document No. 8002948

INTRODUCTION

This section provides information for the maintenance and service of the following products:

• CPU board, B-CPU5

• CPU board, B-CPU4

• Software Cards, U-xxxxxx/L-xxxxxxS/S-xxxxxS

CPU boards and softwares

Figure 1 B-CPU5 / B-CPU4

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1 SPECIFICATIONS

1.1 Electrical requirements

Interruptibility Data memory and alarm settings are saved during power failures up

to 15 minutes

1.2 Environmental requirements

Operating temperature 10...35 °C / 50...95 °F
Storage temperature -10...+50 °C / 14...122 °F
Atmospheric pressure 660...1060 hPa (660...1060 mbar)
Humidity 10...90 % non-condensing

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2 FUNCTIONAL DESCRIPTION

2.1 CPU board, B-CPU5/B-CPU4

The CPU board takes care of the central processing.

The main features of the CPU board are:

• AMD 486DX4 or 486DX5 processor

• Internal clock frequency 75 MHz

• 32 MB DRAM / 16MB DRAM (B-CPU4)

• 64 MB program flash memory / 32MB (B-CPU4)

• 8 kB static RAM with real time clock

• 32 kB EEPROM memory

• 2 + 2 channels UART:

• 3 serial channels with signals in AC-logic level

• 1 serial channel signals in RS232-level

• Programmable alarm sound generator

• PC-card slot for software updates

CPU boards and softwares

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A

X

CONTRO L

PS2
KEYB
CONN

DAC

2 CH.

PLD

NAND

FLASH

4Mx8

ISA BUS

Buffer

BSA[0..23]

BSD[0.15]

80486

DX4/DX5

3.3V

3.3V

5V->3.3V

REGULAT OR

5V

[2..31]

D[0..31]

CONTROL

72 pin SIMM

DRAM

MODULE

16..32MB

MA,RAS,CAS

FLASH

CARD

RADISYS

R400E

PC-ChipSet

50MHz

14.3MHz

FREQUENCY
GENERATOR

14.318
MHz

XTAL

PCMCIA

-controller

Buffer

ISA CON TROL

SD[0..15]

SA[0..1]

SA[2..23]

SD[0..15]

2 x serial cannel

ISA CO NTROL

SA[0..23]

Figure 2 CPU board block diagram, B-CPU5/B-CPU4

DUART

7.3728MHz
XTAL

Audio

Generator

EEPROM

64Kx8

BOOT

FLASH
2Mx16

SRAM
& RTC

8kx8

BCONTROL

Buffer

TXDA..CTSC

232-Buffer TXDD..RXD

AUDIO

D

96-pin connector

CPU BUS

The CPU board, B-CPU5/B-CPU4 is made with PC-technology components. Radisys chipset and
PLD handle all timings and signaling for ISA type CPU bus.

The B-CPU5/B-CPU4 contains an onboard flash memory where software is downloaded from a
software card.

Powerfail or standby

When the monitor is turned to standby or the mains voltage fails, NMI-interrupt is generated by the
power control logic. The interrupt signal in the CPU means that all supply voltages except +5V for
the CPU board will be switched off shortly. NMI interrupt service program then saves all necessary
parameters in the static RAM before supply voltages fail.

When hardware detects HALT command generated from power down; all the outputs to the CPU
motherboard are left floating in high impedance state. Only DRAM refreshing cycle continues to
occur. The halt state will continue until a RESET pulse from the power control logic circuit is
received.

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Watchdog functions

There are certain watchdog functions to ensure the monitor’s performance. The UPI4(NET) board
and the primary display controller board interrupt the CPU board continuously in order to state that
they function properly. The CPU board refreshes the watchdog timer in the power supply unit in
order to prevent reset pulse. If the primary display controller board or the CPU board stops the
refreshment, the monitor will be reset in order to prevent false information to be displayed on the
screen. If the UPI4(NET) board stops the refreshment, the board will be reset internally.

SRAM M48T18

Lithium battery back-up 8 kB static RAM with a real-time clock.

CAUTION The IC contains a lithium battery. Discard the battery according

to local regulations

CPU boards and softwares

.

2.2 Software Cards, U-xxxxxx/L-xxxxxxS/S-xxxxxS

Upgrade software, U-xxxxxx and Service software, L-xxxxxxS/S-xxxxxS are delivered on an 8 MB/4
MB PCMCIA flash memory card.

The upgrade software has been developed for monitor software upgrades. The uprgade software
can be downloaded onto a monitor that is equipped with the B-CPU5/B-CPU4.
The service software has been developed to replace the original monitor software in case of a B­CPU5/B-CPU4 failure. The service software is downloaded onto a replacement empty B-CPU5/B­CPU4. See section 3.3.1 “Downloading/replacing software on CPU Board, B-CPU.””

There is service software available of each S/5 monitor software version. The functionality of the
service software is equal to the functionality of the corresponding original S/5 monitor software.

The Service software, L-xxxxxxS is license software. The license agreement that is delivered with the
software should be archived in a secure location. Relevant license number may have to be referred
when contacting Datex-Ohmeda for service/support. The licence number is needed also for
possible software upgrades.

CAUTION The software card is not write-protected. For safety reasons do not use software

cards in any other purposes, or on any other platforms than they are designed for.

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2.3 Connectors and signals

2.3.1 Internal connectors

CPU board - CPU mother board

AB C

1 +15 V AGND DGND

2 -15 V BALE DGND

3 SA0 SA1 DGND

4 SA2 SA3 RESET_RS485

5 SA4 SA5 -RESET_RS485

6 SA6 SA7 DATA_RS485

7 SA8 SA9 -DATA_RS485

8 SA10 SA11 TXDD_RS232

9 SA12 SA13 RXDD_RS232

10 SA14 SA15 PWM_ECG

11 SA16 SA17 BIT1IN

12 SA18 SA19 TXDC

13 SA20 SA21 RXDC

14 SA22 SA23 RTSC

15 -SMEMR -SMEMW CTSC

16 -SIOR -SIOW TXDB

17 CLK -RESET RXDB

18 -IOCHRDY IRQ10 RTSB

19 N/C_1 IRQ11 CTSB

20 N/C_2 IRQ12 TXDA

21 -SBHE IRQ15 RXDA

22 SD0 SD1 RTSA

23 SD2 SD3 CTSA

24 SD4 SD5 AUDIO_OUT

25 SD6 SD7 +5 V

26 SD8 SD9 +5 V

27 SD10 SD11 +5 V

28 SD12 SD13 +5 V

29 SD14 SD15 ON/STBY

30 +15 VD -RESET_CPU +5 V_CPU

31 +15 VD +32 VD REFRESH_WD

32 GNDD GNDD POWER_FAIL

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CPU boards and softwares

3 SERVICE PROCEDURES

3.1 General service information

The field service of the B-CPU5/B-CPU4 is limited to replacing the actual CPU board, the
SRAM/Timekeeper battery, or mechanical parts. Faulty CPU boards and used service software
cards can be returned to Datex-Ohmeda for repair/exchange.

Datex-Ohmeda is always available for service advice. Please provide the unit serial number, full
type designation and a detailed description of the fault.

CAUTION Only trained personnel with appropriate equipment should perform the tests and

repair outlined in this section. Unauthorized service may void warranty of the unit.

3.2 Service check

These instructions include complete procedures for a service check. The service check is
recommended to be performed after any service repair. However, the service check procedures can
also be used for determining possible failures.

The procedures should be performed in ascending order.

The instructions include a check form (Appendix A) which should be filled in when performing the
procedures.

The mark

the procedure.

The procedures are designed for monitors that contain the S/5 monitor software, L-xxx01(A).
However, most of the procedures also apply to monitors that contain some other monitor software
revision / type.

? in the instructions means that the check form should be signed after performing

3.2.1 Recommended tools

Tool Order No. Notes

Command Bar / Command Board

M-REC

M-NE(12)STPR/M-ESTPR/M-ESTP

Screwdriver

General

Make sure that no cables or modules are connected to the Central Unit, F-CU8. Lift off the video
display with its stand, if placed on the Central Unit.

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CPU board

1. Check that the CPU board rear panel is clean and intact. Check that both CPU and software

device plates are intact.

?

2. Check that the grounding plate under the CPU board rear panel is attached properly and is

not bent.

?

3. The SRAM/Timekeeper battery on the CPU board is recommend to be replaced after every 8

years. Replace the battery, if necessary.

NOTE: The Factory Reset must be performed, if the SRAM/Timekeeper battery is replaced.

?

General

4. Check that all the rear side PC boards are secured to the Central Unit with two screws.

?

5. Install the video display together with the Command Bar/Ccommand Board, the M-

NE(12)STPR/M-ESTPR/M-ESTP and the M-REC. Connect the power cord and turn the
monitor on.

Check that the fan is running.

?

6. Check that the monitor starts up properly, i.e. the alarm LEDs on the Command

Bar/Command Board turn blank, the start-up sound is heard from the loudspeaker and the
normal monitoring screen appears. No error messages should appear onto the screen.

?

7. Check that the connected modules are recognized, i.e. the needed parameter information is

shown on the screen and the M-REC records two lines of start-up information.
If some parameter information is missing, check the screen configuration from the
MONITOR SETUP -menu.

?

8. Check that the clock on the screen shows correct time. Adjust the time, if necessary.

Monitor Setup - Time And Date

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NOTE: If the clock shows time 0:00 continuously (at successive start-ups), the
SRAM/TIMEKEEPER battery should be replaced. The FACTORY RESET must be performed
after the battery is replaced.

?