S5 CPU Board Software Cards Technical Reference Manual Oct 2001

Table of contents

TABLE OF CONTENTS CPU Boards and Software Cards TABLE OF CONTENTS

i

Introduction

1

1

2

Specifications

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

5

Service 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 i Document No.8002948

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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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CPU boards and softwares

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

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 Storage temperature Atmospheric pressure Humidity

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10...35 °C / 50...95 °F -10...+50 °C / 14...122 °F 660...1060 hPa (660...1060 mbar) 10...90 % non-condensing

CPU boards and softwares

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

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ISA BUS DAC 2 CH.

PS2 KEYB CONN

CONTROL PLD

NAND FLASH 4Mx8

BSA[0..23]

Buffer

BSD[0.15]

ISA CONTROL A[2..31] D[0..31] CONTROL

BCONTROL

SA[0..1]

2 x serial cannel

Buffer

TXDA..CTSC

3.3V 72 pin SIMM DRAM MODULE 16..32MB

MA,RAS,CAS

SA[0..23]

SD[0..15]

FREQUENCY GENERATOR

5V

DUART

50MHz 14.3MHz

ISA CONTROL

5V->3.3V REGULATOR

232-Buffer

TXDD..RXD D

7.3728MHz XTAL Audio Generator

14.318 MHz XTAL Buffer

96-pin connector CPU BUS

80486 DX4/DX5 3.3V

SD[0..15]

RADISYS R400EX PC-ChipSet

AUDIO

SA[2..23] EEPROM 64Kx8

BOOT FLASH CARD

PCMCIA -controller

FLASH 2Mx16 SRAM & RTC 8kx8

Figure 2

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

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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CPU boards and softwares

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.

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 A

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B

C

1

+15 V

AGND

DGND

2

-15 V

BALE

DGND

3

SA0

SA1

DGND

4 5

SA2 SA4

SA3 SA5

RESET_RS485 -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 20

N/C_1 N/C_2

IRQ11 IRQ12

CTSB 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

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.

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

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.

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2.

Check that the grounding plate under the CPU board rear panel is attached properly and is not bent.

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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.

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

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Check that the fan is running.

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6.

7.

8.

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.

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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.

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Check that the clock on the screen shows correct time. Adjust the time, if necessary. Monitor Setup - Time And Date 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.

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CPU boards and softwares 9.

Check the loudspeaker volume settings by setting the alarm sound: Alarms Setup - Alarm Volume Test the whole volume scale from 1 to 10 by turning the ComWheel and check that the alarm volume changes correspondingly. The alarm sound should be clear and audible with all the settings.

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10.

Enter the service menu. Monitor Setup - Install/Service (password 16-4-34) - Service (password 26-23-8) Take down the information regarding the monitor software.

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11.

Select SERVICE LOG from the menu. Record the Service Log onto the M-REC by selecting RECORD LOG. Check the content of recording for possible problems, then empty the Service Log by selecting RESET LOG from the menu.

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12.

Test the Central Unit watchdog circuitry: Monitor Setup - Install/Service (password 16-4-34) - Service (password 26-23-8) Set/Test Select the watchdog tests one by one and check that the monitor performs a restart in all other cases except when selecting the WD by UPI . NOTE: When selecting WD BY OVERLOAD, restarting should take place approximately after 15 seconds. With the other tests restarting takes place within a couple of seconds. If restarting did not take place, try to locate the fault: Watchdog --> CPU board/Power supply unit WD by Overload --> CPU board WD by GSP --> Primary display controller board/CPU board

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Check that the monitor is capable of storing the trend information and temporary settings in a short (max. 15 minutes) standby. Turn the monitor to standby and disconnect the power cord. Wait for two minutes, then reconnect the power cord and turn the monitor back on. The monitor should perform a “Warm start” which means the trend information and temporary settings should still be available. If the monitor performed a “Cold start” instead, the battery fuse or the lead acid battery of F-CU8 should be replaced. NOTE: The B-CPU5/B-CPU4 requires 2 Amps battery fuse (P/N 51063). The information regarding a start-up is also saved in the Service Log.

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Perform an electrical safety check and leakage current test.

15.

Check that the Central Unit functions normally after the performed electrical safety check.

•

Fill in all necessary documents.

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3.3 Disassembly and reassembly NOTE: Switch the monitor to standby and press the service reset -switch at least for five seconds before detaching any PC boards. 1.

Remove screws and detach all PC boards and cover plates from the right side of the CPU board.

2.

Remove the screws on the CPU board.

3.

Detach the CPU board.

Reassembly should be made in reversed order. NOTE: When reinstalling PC boards, push the boards carefully until they stop before fastening them with screws.

3.3.1 Downloading/replacing software on CPU Board, B-CPU5/B-CPU4 See also “Replacing CPU Board, B-CPU5/B-CPU4” on Part I/System Installation. NOTE: All user settings will be lost after downloading/replacing monitor software. NOTE: During the downloading of monitor software the serial number of the CPU board is written onto the software card and is matched with the downloaded monitor software serial number. If the downloading of monitor software would fail, the same monitor software could be downloaded again only onto the same CPU board, but not onto any other CPU board.

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1.

Make sure that the monitor is turned to standby. Press and hold the service reset switch on the Central Unit rear panel for at least five seconds, or until an audible tone is generated.

2.

Move off the lid for software card on the B-CPU5 / B-CPU4 rear panel.

CPU boards and softwares

!

3.

Insert the software card into the card drive slot and firmly press the card in position.

4.

Turn the power on.

5.

Wait for approximately 80 seconds. After the start up screen appears enter the Service View and make sure that the information regarding monitor software has been updated. Memorize the serial number of new software.

6.

Remove the software card and attach the lid.

7.

Pick up the software device plate with the serial number of the new software and attach the device plate on the B-CPU5/B-CPU4 rear panel.

NOTE: The license agreement, if delivered with the monitor software, needs to be in accordance with the corresponding monitor software serial number. Make sure you archive the license agreement in a secure location. 8.

Perform Factory Reset.

9.

Set the time and date.

10. Set the monitor’s network communication according to the used network software, if necessary. Network –service menu: Network software S-CNET99 -> DRI Level = 1999 Network software S-CNET01 -> DRI Level = 2001 NOTE: If the DRI level is changed, the monitor will restart automatically. 11. Check that there are no error messages on the screen. 12. Restore the original user settings, if necessary. See the troubleshooting flowchart for software card, if the downloading of new software failed. NOTE: Right after the monitor software downloading the start-up time is considerably longer. 11 Document No.8002948

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3.3.2 Performing Factory Reset NOTE: The Factory Reset is necessary after downloading of monitor software and after replacing the CPU board or SRAM/Timekeeper battery. NOTE: The Factory Reset will restore all your customized defaults, including language selection, to factory defaults. 1.

Press the Monitor Setup key.

2.

Select Install/Service and password (16-4-34).

3.

Select Service and password (26-23-8).

4.

Select Set/Test and perform Factory Reset.

5.

The monitor will perform an automatic restart. After the restart is completed, restart the monitor also manually by the On/Standby –switch.

3.4 Adjustments and calibrations No calibrations or adjustments are needed on the CPU board, B-CPU5/B-CPU4.

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CPU boards and softwares

4

TROUBLESHOOTING

4.1 Troubleshooting flowcharts 4.1.1 Monitor M o n ito r n o t fu n c tio n in g

O n / S T B Y s w it c h 'O N ' D is p la y c o n n e c te d ? K e y b o a rd c o n n e c te d ?

N o

C o n n e c t a n d c h e c k

N o

P o w e r c o rd c o n n e c te d ?

Y e s

D is c o n n e c t a n d r e c o n n e c t th e p o w e r c o r d

N o C o n n e c t p o w e r c o rd N o

Y e s

T h e p o w e r s u p p ly u n it w a s s h u t d o w n b y in s ta n t o v e r v o lta g e in th e m a in s .* )

N o

* ) N O T E ! In c a s e o f s h o rt p o w e r o ff a n d a u to m a tic s ta r t- u p s e e s e c tio n " P o w e r lo g ic b o a r d /P r o te c tio n s " to fin d p o s s ib le r e a s o n .

T u r n p o w e r o n b y s h o r tin g 1 3 (G N D ) a n d 2 0 (O N /S T B Y ) a t G a s In te rfa c e b o a rd c o n n e c to r

N o

Is fa n r u n n in g ?

O K ?

O K ?

R e m o v e a ll m o d u le s a n d tu rn p o w e r o n

Y e s

O K ?

Is fa n r u n n in g ?

Y e s

N o

Y e s A n y L E D s lit o n k e y b o a rd ?

K e y b o a r d tr o u b le . S e e p a r t II fo r tr o u b le s h o o tin g .

N o

Y e s

S ta rt-u p te x ts a p p e a r o n s c re e n ?

N o

Y e s

C lo c k e tc a p p e a rs o n th e s c re e n ?

N o

Y e s

A n o th e r m o d u le w o r k s in s a m e p la c e ?

P lu g in a m o d u le

M o d u le d a ta a p p e a r o n th e s c re e n ? N o

F a u lty C e n tr a l U n it. G o to n e x t p a g e .

Y e s

P ic k u p n e x t m o d u le

Y e s

N o C h e c k o th e r Y e s p o s itio n s w ith s a m e m o d u le , W o r k ?

N o

Figure 3

F a u lty m o d u le . G o to M o d u le tr o u b le s h o o tin g .

F a u lty m o d u le m o th e r b o a r d

F a u lty C e n tr a l U n it, g o to n e x t p a g e .

Monitor troubleshooting flowchart

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4.1.2 Digital section Digital section faulty.

Remove all modules and boards except CPU, UPI and display controller board

Turn the monitor on.

No

OK ? Yes

A beep is heard when monitor is turned on ?

No Replace CPU board.

Yes

Insert one of the removed boards.

Is tone same as at OK start ?

Yes

Try with another display

Yes

Turn the monitor on.

OK?

No

OK ? No

Replace faulty board

Is tone same as at OK start but longer ?

Yes Replace display

No Yes Replace Display controller.

No

Is tone Yes lower and longer than at OK start ?

Figure 4

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Digital section troubleshooting flowchart

Replace UPI-board

CPU boards and softwares

4.1.3 Software Card SERVICE PROCEDURE: Downloading of Service software or Upgrade software from a software card onto the CPU board.

Insert the software card into the card slot.

Check the software card's connection in the card slot and try again.

Turn the power ON.

Wait for 80 seconds.

Yes OK ? No

Start-up display appears?

No

Yes

Try with another software card. Please read the note below.

Has the information regarding monitor software been updated on the Service View?

No

OK

No OK Replace the CPU board and try again.

Yes

Remove the software card. Perform Factory Reset.

OK. Attach the device plate with the serial number of new software.

Figure 5

NOTE: The software card may be defective, or all available software has already been downloaded from the software card.

Software Card troubleshooting flowchart

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4.2 Error messages SRAM Error The SRAM memory is located on the CPU board. The SRAM Error is due to memory malfunction. Restart the monitor. If the problem persists, replace the SRAM/Timekeeper battery. Remember to perform factory reset after the replacement.

EPROM Error The EPROM Error message is displayed due to problems in the communication between the CPU board and the software flash memory. Replace the CPU board. Remember to perform factory reset after the replacement.

EEPROM Error The EEPROM memory is located on the CPU board. The EEPROM Error message is displayed due to memory malfunction. Perform factory reset. If the problem persists, replace the CPU board. Remember to perform factory reset after the replacement.

RAM Error The RAM memory is located on the CPU board. The RAM Error message is displayed due to memory malfunction. Replace the CPU board. Remember to perform factory reset after the replacement.

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5

SERVICE MENU The monitor software contains service menus, which can be used in examining the monitor functions and also in troubleshooting in case a fault occurs.

5.1 Service menu structure Service Menu Memory Frame Communication

Analog Outputs

Network

Network Comm Network Status

MemCards

MemCard Comm MemCard Status

Display

Power Supply

Battery

Keyboard

Keyboard Type Keyboard Log

Parameters

Gas Unit

General

ECG

Gases

STP

Spirometry

P / PT PP COP NIBP NMT M-SAT More . . .

Interface TONO EEG

Set/Test

Country Settings

DIS Interfacing

Service Log

Error History Event History Alarm History

Maintenance

Record Data Remote Access

Planned Maint. Repair Upgrade

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