HP 783xx, 788xx Service manual 2

HP 783Xx Series and HP 788Xx Series

Service Manual Volume 2

Patient Monitors and Neonatal Monitors

HEWLETT

Fia

HP Part No. 78354-90108

Printed in Germany

PACKARD

Edition 8

March 1993

Notice

The information contained in this docuement is subject to change without notice.
Hewlett-Packard makes no warranty of any kind with regard to this material, including, but

not limited to, the implied warranties of merchantability and fitness for a particular purpose.
Hewlett-Packard shall not be liable for errors contained herein or for incidental or
consequential damages in connection with the furnishing, performance, or use of this material.

Hewlett-Packard assumes no responsibility for the use or reliability of its software on
equipment that is not furnished by Hewlett- Packard.

This document contains proprietary information, which is protected by copyright. All rights
are reserved. No part of this document may be photocopied, reproduced or translated to
another language without the prior written consent of Hewlett-Packard Company. The
information contained in this document is subject to change without notice.

Hewlett-Packard Company
Medical Products Group (Europe)
Schickardstrasse 4

7030 Boeblingen

Federal Republic of Germany

@ Copyright Hewlett-Packard Company, 1991. All rights reserved.

Printing History

New editions are complete revisions of the manual. Update packages, which are issued
between editions, contain additional and replacement pages to be merged into the manual by
the customer. The dates on the title page change only when a new edition or a new update is
published.

Preface

This manual covers the following models:

n

MODELS 78352A/78352C/78353A/78353B/78354A/78354C PATIENT MONITORS

n

MODELS 78832A/78833A/78833B/78834A/78834C NEONATAL MONITORS

n

MODEL 78356A GAS MONITOR

The contents of this manual (Volume One) apply to HP Models 78352A/C, 78353A, 78353B,

78354A and 78354C series, 78832A, 78833A, 78833B, 78834AfC series, and 78356A with the

following serial numbers prefixed:

MODELS PREFIX
78352A 2640G
78352C

78353A

78353B 2612G
78354A 2613G
78354C
78356A 2717G

First
2348G

First Issue

Issue

MODEL
78832A
78833A

78833B
788348

78834C

PREFIX
2412G
24136
2610G
2611G
First Issue

Instruments with higher serial numbers may contain production changes. In such cases refer
to the Manual Change sheets and Publication Change Notices enclosed with this manual.

Hewlett-Packard reserves the right to make changes in its products without notice in order to
improve design or performance characteristics. Hewlett-Packard products are sold on the basis
of the specifications valid on the day of purchase. Hewlett-Packard is not obliged to update
instruments which have already been retailed.

CONTENTS OVERVIEW

This manual contains service information for the Hewlett-Packard 78352/3/4, 78832/3/4 and
78356A monitors. The information is divided into two sections:

w Chapter 1 - Service

n

Chapter 2 - Schematics

n

Chapter 3 - Replaceable Parts

Further sections covering Theory of Operation and Maintenance Checks are contained in
Volume 1 of the manual (part number 78354-9000A).

Documentation relating to these monitors:

Instrument Document Part Number

Note

78352A

Operating Guide 78352-90001
78353B/4A Operating Guide 78354-90001
78352C/4C

Operating Guide 78354-92001
78352A/2C/3B/4A/4C Installation Guide 78354-90011
78833B/4A Operating Guide 78834-91001

78834C

78833B/4A/4C
78356A
78356A

78352A
78352C ) monitors are and 78832A 1 monitors are
78353~ 1 referred to 78833A ) referred to
78353~ 1 in text as
783548 ) 783Xx
78354C ) 78334C )

>

Operating Guide 78834-92001

Installation Guide 78834-90011

Operating Guide 78356-90001

Installation Guide 78356-90011

Series

78833~ ) in text as
788348 ) 788Xx Series

iv

Special Notation

Notes, cautions, and/or warnings may accompany the instructions in this manual. They are
defined below:

Note

3

Caution

0

Warning

Notes provide emphasis to information or additional information “off line”
from a procedure.

Cautions highlight procedures that must be followed to avoid damage to the
recorder.

Warnings highlight procedures that must be followed to avoid hazards to human
life or safety.

V

Contents

1.

Service
Introduction

Disassembly and General Service Precautions
Cleaning
Extender Boards
Display uP Board Exchange

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1-1
1-2
1-3
1-3
1-3

la. Disassembly Procedures

3/4 and Full Modules

Top cover removal

Board Removal (display uP, interpolation or parameter)
Power Supply Assembly Removal
Power Supply Disassembly
Audio Module Removal
Front Panel Removal
Front Panel Disassembly
NIBP Board and Pump Removal
Mother Board Removal

lb. Reassembly Procedures

3/4 and Full Modules

Mother Board Installation
Board Installation
Front Panel Reassembly
Front Panel Installation
Power Supply Reassembly
Power Supply Assembly Installation
NIBP Pump and Board Reassembly (78352A/C and 78354A/C)

Cover Installation

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1a-1
1a-1
1a-1
1a-2
1a-3
1a-5
1a-6
1a-7
1a-9

1a-14

1b-1
1b-1
1b-2
1b-3
1b-5
1b-6

1b-9
1b-10
1b-10

1c. Adjustments

Introduction

CRT Adjustments

Interpolation Board Adjustments

Gain and Offset Adjustments
Baseline Width Adjustment

ECG Adjustments

Offset Adjustment

Notch Filter Adjustment
Power Supply Adjustments
System 780 Annotating Analog Interface (Opt. J11)
System 780 Configuration Adjustments

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1c-1
1c-2
1c-4
1c-4
1c-4
1c-7
1c-7
1c-7
1c-8

1c-9

1c-9

Contents-1

Offset Adjustment ........................

SDN Configuration Adjustments

Instrument Identity ........................

Instrument Data Transmission Errors
Instrument Status Word
Binary to Hex Conversion Table

1d. Jumpers & Switch Programming

Jumpers & Switch Programming for all Boards

Mother Board: 78353-66501t and 78354-66501

Programming Switch S1

Conditions when switch closed

Programming Switch S2

Condition when switch closed
Programming Switch S3
Programming Switch S4

Summary of S1 and S2 switch positions for 78354-66501 Mother Board:

Display uP Board 78353/4-66502, 78354-66602 and 78354-66702

Programming Switch S1
Programming Switch S2
Programming Switch S3 (78354-66502 board only)

Interpolation Board 78353-66503

Programming Switch S1
Programming Switch S2 (
Jumpers

Audio Board 78353-6651 1/12
ECG Board (3-lead) 78832-66522

Programming Switch S 1

ECG Board (Full lead) 78354-66522, 66722
Pressure Board 78353-66532/4

Programming Switch S1
Programming Switch S2
How to change the pressure scaling mode:

NIBP Board 78354-66535 and 78352-66535
CO2/02 Board 78354-66540 and 78356-66540

Programming Switch S1 (78354-66540 only)
Programming Switch S1 (78356-66540 only)
Programming Switch S2

02 Board 78356-66541

Programming Switch S1 (78356-66541 only)

PAT Board 78354-66552

Programming Switch S1
Programming Switch S3

Temperature Board 78353-66554

Programming Switch S1

Temperature Board 78354-66554

Programming Switch S1
Programming Switch S3

Respiration Board 78832-66562

Programming Switch S1

tcp02/C02 Board 78834-66572

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no on Revision C boards and higher) t

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1c-9
1c-14
1c-15
1c-16
1c-16
1c-16

1d-1
1d-1
1d-1
1d-1
1d-2
1d-2
1d-3
1d-3
1d-4
1d-6
1d-6
1d-7
1d-7
1d-9
1d-9

1d-9
1d-10
1d-11
1d-12
1d-12
1d-13
1d-15
1d-15
1d-15
1d-16
1d-17
1d-20
1d-20
1d-20
1d-21
1d-21
1d-21
1d-23
1d-23
1d-23
1d-25
1d-25
1d-26
1d-26
1d-26
1d-27
1d-27
1d-28

Contents-2

SpO2 Board 78354-66510 ......................

System Board 78353-66590 ......................

System Board 78353-66592 ......................

RS-232C Interface Board 78354-66598 .................

NIBP Board (78352-66538) ......................

Error Codes and Messages

le.

Introduction .............................

Error Codes .............................

ECG (783XX series) Error Codes: ...................

ECG (788XX series) Error Codes: ...................

Pressure Error Codes: .........................

NIBP Error Codes: .........................

CO2 Error Codes: ..........................

02 Error Codes: ..........................

Temperature (783XX series) Error Codes: ...............

Temperature (788XX series) Error Codes: ...............

Respiration Error Codes: .......................

tcpCO2/O2 Error Codes: ......................

SpO2 Error Codes: .........................

SDN Error Codes: .........................

780 Annotating Interface Error Codes: .................

Error Messages ............................

Defective Components On Display uP And Interpolation Boards ......

1d-29
1d-29
1d-31
1d-32
1d-33

1e-1
1e-1
1e-3
1e-3
1e-3
1e-3
1e-4
1e-4
1e-4
1e-4
1e-5
1e-5
1e-6
1e-6
1e-7
1e-8
1e-8

2.

Schematics

Introduction ............................. 2-1

Schematic Diagrams

2a.

Introduction .............................

Organization of Material in Chapter 2a ................

Board Compatibility Chart ......................

Exchange Board Overview ......................

2b.

Connection Boards

Introduction .............................

Replaceable Parts List

3.

Introduction .............................

How to Find a Part ..........................

ORDERING INFORMATION .....................

General Options for all types of Monitors ................

Right angle power cords are ordered under the following part number: ...

Instrument Model Number: 78352A ...................

Model Description: Surgical Monitor

.................

Parameter Option: #A01 (ECG) ...................

Parameter Option: #A11 (ECG, NIBP) ................

Parameter Option: #A13 (ECG, NIBP, 2TEMP) ............

Parameter Option: #A15(SPO2, NIBP)

Parameter Option: #A16 (ECG, SP02, NIBP) .............

2a-1
2a-1
2a-4
2a-6

2b-1

3-1
3-1
3-2
3-7
3-8
3-9

3-9
3-10
3-11
3-13
3-15
3-16
3-17

Contents-3

Interface Option: #J10 (Limited 780 Interface)
Interface Option: #J11 (Annot. Interface)

Interface Option: #J12 (SDN Interface)

Interface Option: #J13 (RS232 Interface)

Instrument Model Number: 78352C

...................

Model Description: Surgical Monitor
Parameter Option: #A01 (ECG)

...................

Parameter Option: #A05 (ECG SP02)
Parameter Option: #A11 (ECG/NIBP)

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................

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Parameter Option: #A13 (ECG/NIBP/2TEMP)
Parameter Option: #A16 (ECG/SPO2/NIBP)
Interface Option #J10 (Limited 780 Interface)

Interface Option #J11 (Annotating Interface)

Interface Option #J12 (SDN Interface)
Interface Option #J13 (RS232 Interface)

Instrument Model Number: 78354A

...................

Model Description: Surgical Monitor
Parameter Option: #A01 (ECG)

...................

Parameter Option: #A02 (ECG, PAT)
Parameter Option: #A03 (ECG,P1)
Parameter Option: #A04 (ECG, P1, PAT)

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Parameter Option: #A06 (ECG, P1, P2, T1, T2)
Parameter Option: #A08 (ECG, RESP, 2T)
Parameter Option: #A09 (ECG, RESP, 1 PRESS)
Parameter Option: #A10 (ECG, RESP, P1, P2)
Parameter Option: #A11 (ECG, RESP, PAT)
Parameter Option: #A12 (ECG, P1, P2, PAT)
Parameter Option: #A14 (ECG, SPO2, 2TEMP)
Parameter Option: #A17 (ECG, SPO2, 1PRESS)
Parameter Option: #A18 (ECG, SPO2, AUX, 1T)
Parameter Option: #A21 (ECG, RESP, 2T, 2P)

Parameter Option: #A22 (ECG, P1/2/3, PAT)
Parameter Option: #A23 (ECG, T1/2, P1/2/3)
Parameter Option: #A24 (ECG, RES, P1/2,PAT)
Module Option: #C01 (NIBP)
4/4 Module Option: #CO2 (CO2/O2)
4/4 Module Option: #C03 (C02/NIBP)
4/4 Module Option: #C06 (Dual PRESS)

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................

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4/4 Module Option: #C16 (Dual PRESS, NIBP)
Parameter Option: #C18 (2PRESS, C02)

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Interface Option: #J10 (Limited Analog Interface)
Interface Option: #J11 (Annot. Interface)
Interface Option: #J12 (SDN Interface)
Interface Option: #J13 (RS232 Interface)

Instrument Model Number: 78354C

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Model Description: Patient Monitor (Adult)
Parameter Option: #A01 (ECG)
Parameter Option: #A03 (ECG, P1)

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Parameter Option: #A06 ECG,P1,P2,T1,T2
Parameter Option: #A08 ECG RESP 2T

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Parameter Option: #A12 ECG P1,P2,PAT

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3-19
3-19
3-19
3-20
3-21
3-21
3-22
3-23
3-24
3-26
3-28
3-30
3-30
3-31
3-31
3-32
3-32
3-34
3-35
3-36
3-37
3-38
3-39
3-40
3-41
3-42
3-43
3-44
3-45
3-46
3-47
3-49
3-51
3-53
3-55
3-57
3-59
3-61
3-62
3-64
3-66
3-66
3-66
3-67
3-68
3-68
3-69
3-70
3-71
3-72
3-73

Contents-4

Parameter Option: #A14 ECG SPO2 2TEMP
Parameter Option: #A17 ECG SPO2 1PRESS
Parameter Option: #A18 ECG SPO2 AUX 1T

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Parameter Option: #A19 ECG RESP SPO2 ..............

Parameter Option: #A51 ECG CO2 SP02
Parameter Option: #C01 NIBP
Parameter Option: #C02 CO2/O2

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..................

Parameter Option: #C03 CO2 / NIBP
Parameter Option: #C06 2 PRESS0
Parameter Option: #C16 DUAL PRESS NIBP
Parameter Option: #C18 2 PRESS / CO2
Parameter Option: #J10 ANALOG INTF.LIMT
Parameter Option: #J11 ANNOT INTERFACE
Parameter Option: #J12 SDN INTERFACE
Parameter Option: # J13 RS232 INTERFACE

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Instrument Model Number: 78834A ...................

Model Description: Patient Monitor (Neonatal)
Parameter Option: #A07 (ECG. RESP)

................

Parameter Option: #A08 (ECG, RESP, 2T)
Parameter Option: #A09 (ECG, RESP, P1)
Parameter Option: #A10 (ECG, RESP, 2P)
Parameter Option: #A21 (ECG, RESP, 2T, 2P)
Parameter Option: #A22 (ECG, RESP, 2T, 3P)

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Parameter Option: #A35 (E, R, 2T2P, P02C02D)
Parameter 4/4 Option: #C31 (INPUT, P02C02, DR)
Parameter 4/4 Option: #C32 (INPUT, P02C02, DR)
Parameter 4/4 Option: #J10 (Limited Analog Interface)
Parameter 4/4 Option: #J11 (Annot. Interface)
Parameter 4/4 Option: #J12 (SDN Interface)
Parameter 4/4 Option: #J13 (RS232 Interface)

Instrument Model Number: 78834C

...................

Model Description: Patient Monitor (Neonatal)
Parameter Option: #A07 (ECG RESP)

................

Parameter Option: #A08 ECG RESP 2X TEMP
Parameter Option: #A09 ECG RESP P1

Parameter Option: #A10 ECG RESP 2P
Parameter Option: #A19 ECG RESP SPO2
Parameter Option: #A35 ECG RESP TCP
Parameter Option: #C01 NIBP
Parameter Option: #C02 CO2/O2
Parameter 4/4 Option: #C06 2 PRESS
Parameter 4/4 Option: #C08 3 PRESS

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Parameter 4/4 Option: #C20 NIBP/SPO2
Parameter 4/4 Option: #C30 SPO2

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Parameter 4/4 Option: #C35 2 PRESS TCP
Parameter 4/4 Option: #C36 TCP SPO2

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Parameter 4/4 Option: #J10 (Limited Analog Interface)
Parameter 4/4 Option: #J11 ANNOT.INTERFACE
Parameter 4/4 Option: #J12 SDN INTERFACE

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Parameter 4/4 Option: #J13 RS232 INTERFACE

Overall Assembly

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3-74
3-75
3-76
3-77
3-78
3-79
3-80
3-81
3-83
3-84
3-86
3-87
3-87
3-88
3-88
3-89

3-89

3-91
3-92
3-93
3-94
3-95
3-96
3-98

3-100
3-102
3-104
3-104
3-105
3-105
3-106
3-106
3-107
3-108
3- 109
3-110
3-111
3-112
3-113
3-114

3-115
3-116
3-117
3-119
3-120
3-121
3-122
3-122
3-122
3-123
3-125

Contents-5

Rear Panel Mechanical Parts/Chassis
General Internal Parts For Non-Invasive Pressure

A. Ordering Information

Direct Mail Order Program
Main Sales and Support Offices

United States of America
Other International Areas

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3-127

............. 3-129

A-1
A-3
A-3
A-4

Contents-6

Figures

1c-1. Location of Components for Adjustment and of Centering and Ring Magnets

1c-2. Location of interp. bd adjustment potentiometers (78353 - 66503) .....

1c-3. Service/Test Waveform .......................

1c-4. Location of interpolation board (78352 - 66503) adjustment potiometers and

78352A/C service/test waveform ..................

1c-5. Location of A22R69 and A22R82 ...................

1c-6. Notch Filter Adjustment - Test Equipment ...............

1c-7. Location of R204 and TP1 ......................

1d-1. Location of A1/S1,S2 and A4/S3,S4 ..................

1d-2. Location of A2Ju12, A2/S1, S2, S3 (78354-66502) ............

1d-3. Location of A3/S1, S2 and A3Ju1 - A3Ju8 (pre-Rev. C boards) ......

1d-4. Location of A3/S1 and A3Jul - A3Ju8 (Rev. C boards) .........

ld-5. Location of A22/S1 .........................

1d-6. Location of A34/S1, S2 .......................

1d-7. Location of A35/S1, S2 and A35/Ju1-4 (78354-66535 Rev. A boards) ...

1d-8. Location of A35/S1, S2, S4 and A35/Ju3, Ju4 .............

1d-9. Location of A40/S1, S2 and A40Ju1-Ju7 ...............

1d-10. Location of A41/S1 .........................

1d-11. Location A52/S1, S3 ........................

1d-12. Location of A54/S1 .........................

1d-13. Location of A54/S1, S3 .......................

1d-14. Location of A62/S1, A62Ju5, A62Ju6 .................

1d-15. Location of A72/S1 .........................

1d-16. Location of A90/S1, S2 .......................

1d-17. Location of A92/S1 .........................

1d-18. Location of A98/S1 .........................

2a-1. Board vs EPROM Chart (Revision A) .................

2a-2. Board vs EPROM Chart (Revision C) .................

2a-3. Mother Board ...........................

2a-4. Extender Board ...........................

2a-5. Mother Board Schematic (A1) ....................

2a-6. Display UP Board Schematic (A2) ...................

2a-7. Display UP Board Schematic (A2 continued) ..............

2a-8. Display MP Board Schematic (A2 continued) ..............

2a-9. Display MP Board Schematic (A2 continued) ..............

2a-10. Display MP Board Schematic (A2 continued) ..............

2a-11. Display MP Board Schematic (A2 continued)

2a-12. Interpolation Board Schematic (A3) ..................

2a-13. Interpolation Board Schematic (A3 continued)
2a-14. Power Supply Boards Schematic (A6/A7)

2a-15. SpO2 Board Schematic (A10) .....................

2a-16. SpO2 Board Schematic (A10 continued) ................

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1c-3
1c-5
1c-5

1c-6
1c-8
1c-8

1c-10

1d-5

1d-8
1d-10
1d-11
1d-12
1d-16
1d-19
1d-19

1d-21
1d-22
1d-24
1d-25
1d-26
1d-27
1d-28
1d-30
1d-31
1d-33

2a-8

2a-11
2a-15
2a-17
2a-19
2a-21
2a-23
2a-25
2a-27
2a-29
2a-31
2a-33
2a-35
2a-37
2a-39
2a-41

Contents-7

2a-17. SpO2 Board Schematic (A10 continued)
2a-18. Audio Board Schematic (A12)
2a-19. Audio Board Schematic (A12 continued)
2a-20. Battery and Lamp Boards Schematic (A18/A19)
2a-21. SpO2 Board Schematic (A20)
2a-22. SpO2 Board Schematic (A20 continued)
2a-23. SaO2 Board Schematic (A20 continued)
2a-24. ECG Board (Full-lead) Analog Circuits Schematic (A22/A42)
2a-25. ECG Board (Full-lead) Analog Circuits Schematic (A22/A42 continued) . .
2a-26. ECG Board (Full-lead) Analog Circuits Schematic (A22/A42 continued) . .
2a-27. ECG Board (Full-lead) Analog Circuits Schematic (A22/A42 continued) . .
2a-28. ECG Board (Full-lead) Analog Circuits Schematic (A22/A42 continued) . .
2a-29. Pressure Board Analog Circuits and Input Connection Board Schematic

A31/A32 (A33/A34) .......................

2a-30. Pressure Board Digital Circuits Schematic A32 (A34)
2a-31. NIBP Board Analog Circuits Schematic (A35)
2a-32. NIBP Board Analog Circuits Schematic (A35 continued)
2a-33. NIBP Board Digital Circuits Schematic (A38)
2a-34. NIBP Board Analog Circuits Schematic (A38 continued)
2a-35. NIBP Board Schematic (A38 continued)
2a-36. NIBP Board Digital Circuit Schematic (A38 continued)
2a-37. CO2 Board Motor and Temp. Circuits Schematic (A40)
2a-38. CO2 Board Preamplifier and Digital Circuits Schematic (A40 continued) . .
2a-39. O2 Board Schematic (A41)
2a-40. Temp/Pleth/Aux Bd Analog Circuits and Input Conn.Bd Schematic

(A51/A52) ...........................

2a-41. Temp/Pleth/Aux Bd Digital Circuits Schematic (A52)
2a-42. Temp/Pleth/Aux Bd Analog Circuits and Input Conn. Bd Schematic

(A51/A52) ...........................

2a-43. Temp/Pleth/A ux Board Digital Circuits Schematic (A52 continued)
2a-44. Temperature Board Analog Circuits and Input Connection Schematic (A52

continued) ...........................

2a-45. Temperature Board Analog Circuits and Input Connection Board Schematic

(A53/A54) ...........................

2a-46. Temperature Board Digital Circuits Schematic (A54 continued)
2a-47. Temperature Board Analog Circuits and Input Connection Schematic

(A53/A54 continued) .......................

2a-48. Temperature Board Digital Circuits Schematic (A54 continued)

2a-49. Respiration Board Analog Circuits and Input Connection Board Schematic

(A61/A62) ...........................

2a-50. Respiration Board Digital Circuits Schematic (A62 continued)
2a-51. tcpCO2/O2 Board Analog Circuits Schematic (A72)
2a-52. tcpCO2/O2 Board Analog Circuits Schematic (A72 continued)
2a-53. Barometer Board Schematic (A73)
2a-54. System Board Schematic (A90)
2a-55. 780 System Board Analog Circuits Schematic (A92)
2a-56. 780 System Board Digital Circuits Schematic (A92 continued)
2a-57. SDN Board (A95)
2a-58. SDN Board (A95 continued)
2a-59. RS232 Board Schematic (A98)
2a-60. Front View Keyboard

..........................

........................

....................

.....................

......................

....................

.....................

....................

................

................

............

................

................

......

..........

.............

.........

.............

.........

................

.........

.........

..........

....

......

......

......

...........

......

..................

...........

......

2a-43
2a-45
2a-47
2a-49
2a-51
2a-53
2a-55
2a-57
2a-59
2a-61
2a-63
2a-65

2a-67
2a-69
2a-71
2a-73
2a-75
2a-77
2a-79
2a-81
2a-83
2a-85
2a-87

2a-89
2a-91

2a-93
2a-95

2a-97
2a-99

2a-101
2a-103

2a-105
2a-107

2a-109
2a-111
2a-113
2a-115
2a-117
2a-119
2a-121
2a-123
2a-125
2a-127
2a-128

Contents-6

3-1. Overall Assembly for Revison A,B and C
3-2. Power Supply Assembly

.......................

3-3. Rear Panel Mechanical Parts/Chasis

............... 3-125

................. 3-127

3-4. General Internal Parts for Non-Invasive Pressure

3-126

............ 3-129

Contents-9

Tables

1c-1. System Output Configurations

1e-1. Error Code Key - Fault Diagnosis
2a-1. Index of Schematics contained in Chapter II
2a-2. Board Compatibility Chart

3-1. List of Abbreviations

3-2. Rear Panel Mechanical Parts / Chasis ................. 3-127

3-3. General Internal Parts for Non-Invasive Pressure

........................

.................... 1c-12

................... 1e-2

.............. 2a-2

......................

............

2a-4

3-129

3-3

Contents-10

Service

Introduction

Chapters la, lb, lc, Id and le provide all the Service information required for the 78XxX
Series Patient and Neonatal Monitors. The Service Chapters cover the following:

n

Chapter la Disassembly Procedures

q

Top cover removal

o Board removal

(Display UP, Interpolation, Parameter)

q

Power supply assembly removal

q

Power supply disassembly

q

Audio module removal

q

Front panel removal

q

Front panel disassembly

q

NIBP Board and Pump removal
78354A/C monitor..78352A/C monitor

q

Mother Board removal

n

Chapter lb Reassembly Procedures

q

Mother Board installation

q

Board installation

o Front panel reassembly

q

Front panel installation

q

Power supply reassembly
o Power supply assembly installation
o NIBP reassembly

0 Cover installation

1

n

Chapter lc Adjustments

H Chapter Id Jumpers and Switch Programming

n

Chapter le Error Codes and Messages

Service l-1

Disassembly and General Service Precautions
Caution

Read the following precautions thoroughly before performing any of the
disassembly procedures. Serious damage to the instrument can result if the
precautions are not strictly followed.

Y

n

The front panel is vulnerable to scratching. Avoid rough handling of the panel.

n

When the chassis is removed from the case, bare metal edges are exposed which can scratch
the work surface. Be careful that the sharp edges and corners of the chassis do not scratch
the work area surface.

n

The input amplifiers have a floating ground section which is isolated from the remainder of
the board.

Never handle this section of the board - oil, dirt, dust, etc., deposited on this section can
cause leakage paths which can degrade floating circuit isolation and performance.

n

Handle all circuit boards by the edges; CMOS circuits operate with currents in the
nanoampere range and leakage paths caused by skin oils, dirt, dust, etc., can cause

inaccurate circuit performance.

w As all of the screws in the Monitor have been treated with a special varnish they should not

be screwed in and out more than about ten times. After this, replace with new screws.

n

Generally, the insulation resistance of the oxide layer in MOS IC structures is very high, and
the oxide layer is very thin. Because of this, it is possible that the static voltages usually
present on clothes and the human body will be enough to generate a potential difference
across the insulator, high enough to cause a breakdown of the insulating layer.

The following precautions should be taken while handling these ICs. Particular care should be
taken under conditions of low humidity.

1. Store new ICs by inserting them into a urethanepolyester cushion (which is conductive), or
wrapping them in aluminium foil, so that all the pins are at the same potential.

(The ICs should be stored in that manner until mounted on the circuit board.)

2. Check the soldering iron for possible power-line leakage current. To do this, connect an
ohmmeter to the tip of the soldering iron and the plug. If there is a leakage path, use
another soldering iron.

3. Equalize any potential difference between the clothes, the tools in use, the work bench,
the set being worked on, and the packaged IC by touching them all in succession with the
hands or a conductive wire or tool.

4. When it is necessary to handle the IC with the fingers, do not touch any pin, hold the IC
at the ends of its plastic package case.

Warning

AVOID ELECTROSTATIC DISCHARGE !

l-2 Service

The following precautions should be observed prior to beginning disassembly:

1. Turn the instrument off.

2. Remove the power cord and all signal cables from the rear panel.

Warning

In Chapter la the disassembly procedures are arranged from top assembly downwards.
Chapter lb contains information on reassembly.

If the instrument is to be reconnected and the power turned on with the rear
panel removed, low voltage and dangerous high voltage sources would be
exposed. Be careful. Do not power up the chassis on a conductive surface
such as a bare metal table. Place the chassis on a non-conductive material,
such as heavy cardboard.

Cleaning

The instrument should be clean and free of dust and dirt. Clean as required with a lint-free
cloth or sponge dampened with warm soapy water or alcohol. The front panel is more
sensitive to scratching than the other surfaces of the Monitor. Be careful, especially when
cleaning this surface.

Caution

dl

Do not allow any liquid to enter the instrument case. Do not pour liquid on
the instrument while cleaning. Never use any abrasive material such as steel
wool or silver polish, and never use strong solvents as acetone to clean the
monitor.

Extender Boards

Four extender boards and one cable are needed for servicing the Monitor:

lx 5061-5640

1 x 5061-5641 Interpolation Board / Display UP Board
1 x 5060-1805
1 x 78353-66589 Power Supply Extender Board (15 pin connector)
1 x 78353-61607 Power Supply Extender Cable

Parameter Board / Display UP Board

System Board

Display UP Board Exchange

After exchanging the Display UP Board, wait at least 20 seconds before switching the
instrument back on, otherwise an error message will be generated

Service l-3

Disassembly Procedures

314 and Full Modules

Top cover removal

1. Undo and remove the 4 upper screws on the instrument case.

2. Raise the front of the top cover and lift cover off.

Die beiden oberen Fotos von alter Seite l-5 nebeneinander hier einfiigen

la

Board Removal (display UP, interpolation or parameter)

1. Lift out the board stabilizer which holds the boards in place.

2. Undo the colored plastic clips at either end of the board.

Die beiden unteren Fotos von alte Seite l-5 nebeneinander hier einfiigen

Disassembly Procedures 1 a-l

3. Lift the board out.

Note

3

Das erste Foto von alte Seite l-6 hier einfiigen

For Parameter Boards, to remove the plastic cover pull forward. Be careful
with contact spring at reassembly.

Power Supply Assembly Removal

1. Undo the screw holding the power supply assembly in place. This screw has a compression
washer underneath which must be re-fitted. On monitors with NIBP, detatch pressure tube

from input connector and NIBP board, also detatch power supply lead from NIBP board.

2. Lift out the power supply assembly, complete with NIBP pump (if fitted).

Die zweiten und dritten Fotos von alte Seite l-6 hier einfiigen

la-2 Disassembly Procedures

Power Supply Disassembly

1. Remove the power supply cover by undoing the two screws on the top and the three screws
on the side.

Das let&e Foto von alte Seite l-6 hier einfiigen

2. For access to the secondary power supply board A6, unscrew the rear panel assembly
(2 screws).

3. Disconnect the transformer and battery connector (not shown).

Die beiden oberen Fotos von alter Seite l-7 nebeneinander hier einfiigen

4. Loosen the potential equalisation connector with a socket wrench and remove.

5. Slide out rear panel insert. (On later models the label is removed from underneath).

Die beiden unteren Fotos von alter Seite l-7 nebeneinander hier einfiigen

Disassembly Procedures 1 a-3

6. Undo two screws holding the power inlet in position (required only for access to power
inlet).

7. For access to the primary power supply board A7, undo the three screws holding it into
position.

Die beiden oberen Fotos von alter Seite 1-8 nebeneinander hier einfiigen

8. Power supply board A7 is now fully accessible.

Das letzte Foto von alte Seite l-8 hier einfiigen

1 a-4 Disassembly Procedures

1. Press the button on the top of the audio module cover, and pull the cover off the module.
Later models have a screw in the rear panel to secure the audio cover.

2. Undo the 1 or 2 screws on the inside of the audio module. Later models have only one
screw, remove this and slide the complete audio module out after disconnecting audio
module cable and battery board cable (optional).

Die beiden oberen Fotos von alter Seite l-9 nebeneinander hier einfiigen

3. Pull audio module a little away from the rear of the instrument and disconnect the cable

from the battery board. The battery board can now be removed (optional).

4. Disconnect the ribbon cable from X9 (and X19 if applicable) on the mother board and feed

out through the slot in the rear bracket. The audio module can now be removed.

Die beiden unteren Fotos von alter Seite l-9 nebeneinander hier einfiigen

Disassembly Procedures

1 a-5

Front Panel Removal

1. The parameter boards must be lifted out before the front panel can be removed.

2. Disconnect the CRT socket, the ground wire, the cable to the keyboard assembly, the HV
connection and the choke connection.

Die beiden oberen Fotos von alter Seite l-10 nebeneinander hier einfiigen

3. Undo the screw on the inside of the front panel, next to the CRT, and tilt the front panel
assembly forwards.

4. 788Xx series, 78352C, 78354C
Disconnect the three lamp board wires from the mother board.

Die beiden unteren Fotos von alter Seite l-10 nebeneinander hier einfiigen

la-6 Disassembly Procedures

5. 788Xx Series only
Undo the one screw on the lamp board and remove as shown (push the lamps from the
front of the panel to access the board).

78352C, 78354C and 78834C
The LED lamp board is mounted with two screws to the keyboard assembly and can only

be removed with the complete keyboard assembly.

6. Lift front panel assembly out.

Die beiden oberen Fotos von alter Seite l-11 nebeneinander hier einfiigen

Front Panel Disassembly

1. Unscrew the two CRT holders, one on either side of the tube.

2. Lift out the CRT, the CRT holders, grounding spring (earlier models have a side hook
which needs to be unclipped, it is not necessary on later models and cannot be re-ordered).

Die beiden unteren Fotos von alter Seite l-11 nebeneinander hier einfiigen

Disassembly Procedures la-7

3. Unscrew the parameter connector assemblies (the type and fitting of the connector
assemblies varies depending on parameter configuration).

4. The cover can now be lifted off the assembly

(as

shown) and the connector can also be

removed from the front panel.

Note

Some connector boards have spring contact for shield connection. Be careful
at reassembly to avoid damaging the spring.

Die beiden oberen Fotos von alter Seite 1-12 nebeneinander hier einfiigen

5. Not applicable to the 78352C, 78354C and 78834C monitors:
Undo three screws to remove the keyboard assembly. (The keyboard assembly on the

78352C, 78354C and 78834C monitors is not removable, it is glued to the front panel).

Das letzte Foto von alte Seite 1-12 hier einfiigen

1 a-8 Disassembly Procedures

NIBP Board and Pump Removal

78354A Monitors with old ac pump:

1. Pull out NIBP parameter board until access to the tube connections are possible.

Das erste Foto von alte Seite 1-13 hier einfiigen

2. Disconnect the tubes from the front panel and the T-piece leading to the pump. Leave
tube attached to board.

Das zweite Foto von alte Seite 1-13 hier einfiigen

Disassembly Procedures la-9

3. Disconnect cables from the pump control board to the parameter board. The board can
now be completely removed.

Das letzte Foto von Seite 1-13 hier einfuegen

4. Disconnect power supply to control board and to pump and remove the control board by
tilting towards pump to unclip it and then lift out.

Das erste Foto von Seite 1-14 hier einfuegen

la-10 Disassembly Procedures

5. The four screws holding down the pump can now be removed (four outer X-headscrews).
Extender board with pump removed showing ribbon cable connections to the mother

board.

Das zweite Foto von Seite 1-14 hier einfuegen

6. The front panel can be removed by removing the screw shown and sliding out the panel.
Note the position of the switch assembly and LED board.

Das let&e Foto von Seite 1-14 hier einfuegen

Disassembly Procedures la-l 1

78352A/C Monitor: 78354A/C with de pump:

1. Disconnect tubing from T-piece branch leading down to front panel connector and to
pump. Remove connector (brown and red wires) on NIPB board. This connects to the
pump control board.

Note

that

for the new NIBP Board (78352-66538),

orange wires) connects to the power supply and the pump.

th

e removed connector (black, brown, red,

Das erste Foto von alte Seite 1-15 hier einfuegen

2. The NIPB board and other parameter boards may now be removed.

Das zweite Foto von aIte Seite 1-15 hier einfuegen

la-12 Disassembly Procedures

3. Pump:

to remove the pump remove connector (red and black wires) to pump control board

and remove the front 2 nuts securing the pump assembly to the vibration supports.(Refit

new external tooth lock washers if nuts are loosened p-n 2194-0413).

Note that for new NIBP Board, the pump is isolated when disconnected
supply and the board. The pump is removed by undoing two

the

power

4. Pump Control Board:

supply.

to remove the pump control board, disconnect from power supply,

nuts and

from

washers

the power

securing

remove screw (arrowed) and gently push down to free lower end of board from slot and

then rotate out. Note that the new NIBP Board has no pump control board.

Die beiden letzten Fotos von alter Seite 1-15 nebeneinander hier einfuegen

it to

Disassembly Procedures 1 a-l 3

Mother Board Removal

1.

Note

2. Looking from front: Undo the screws holding the mother board in place: two on left (also

holding side LH bracket), three on right (one of which holds the Audio bracket), two on
rear (also holding rear bracket on some models) and one in center.

Die beiden oberen Fotos von alter Seite 1-16 nebeneinander hier einfuegen

3. Unscrew the green/yellow ground wire, which is also used to secure the Mother Board and
screening strip.

For access to the Mother Board, the front panel assembly does not necessarily
have to be removed. Simply tilt it forward - all cables are long enough to
permit this extension.

4. Undo the two screws which fasten the two grounding brackets to the Mother Board. Lift
grounding brackets out.

Die beiden unteren Fotos von alter Seite 1-16 nebeneinander hier einfuegen

la-14 Disassembly Procedures

5. Lift up the Mother Board at the rear and pull out. (Picture shows side panels removed,
but this is not necessary).

6. The power on/off switch coupler rests in the bottom cover underneath the Mother Board.
Note position of nylon spacer ring.

Die beiden Fotos von alter Seite 1-17 nebeneinander hier einfuegen

Disassembly Procedures la-15

lb

Reassembly Procedures

3/4 and Full Modules

Mother Board Installation

1. Replace the Mother Board, making sure that the protrusion of the power on/off switch
coupler fits through the slot provided in the Mother Board.

2. Center the Mother Board with the center screw and replace LH side bracket and its 2
screws (early models also have a LH side center screw as shown). Replace the 3 screws on
the RH side (including Audio bracket and RH end of screening strip), the 2 rear screws and
screw holding green/yellow ground wire and LH end of screening strip. Do not tighten until
all 9 screws holding the Mother Board are back in position. (Some models may have upto

12 screws holding the board down).

Die beiden oberen Fotos von alter Seite 1-18 nebeneinander hier einfuegen

3. Reconnect the ground bracket (in later models this comes off with the Mother Board when
the two screws are released and a copper strip replaces the wire).

4. Reconnect the floating ground bracket (in later models this comes off with the Mother
Board when the two screws are released).

Die beiden unteren Fotos von alter Seite 1-18 nebeneinander hier einfuegen

Reassembly Procedures lb-l

5. Screw both brackets back into place.

Bitte oberstes Foto von alter Seite 1-19 hier einfuegen

6. The Mother Board is now ready to receive the power supply assembly, boards, front panel
etc.

Bitte zweites Foto von alter Seite 1-19 hier einfuegen

Board Installation

1. Insert the Display up and the Interpolation Boards back into the corresponding connectors.

Bitte unterstes Foto von alter Seite 1-19 hier einfuegen

1 b-2 Reassembly Procedures

Front Panel Reassembly

1. Make sure that the photo resistor on the keyboard assembly . . .

Bitte oberstes Foto von alter Seite l-20 hier einfuegen

2. . . . is positioned over the front-panel recess provided for this purpose.

Bitte zweites Foto von alter Seite l-20 hier einfuegen

3. Screw the parameter connector assemblies back into position (connectors facing upwards).

Bitte drittes Foto von alter Seite l-20 hier einfuegen

Reassembly Procedures 1 b-3

4. Place

the CRT back into position - ensure no dirt or other material is trapped between

CRT and front panel screen.

5. Place screws in right-hand bracket. Do not tighten. Hook the grounding spring for the

CRT coating into position - do not bend the spring hook. Replace screws in left-hand
bracket remembering to include black wire from power lamp assembly.

Bitte letztes Foto von alter Seite l-20 hier einfuegen

6. Tighten all of the screws so that the CRT is positioned symmetrically. Hook up the other
end of the ground spring for the CRT coating.

Bitte erstes Foto von alter Seite 1-21 hier einfuegen

1 b-4 Reassembly Procedures

Front Panel Installation

1. Fit the front panel assembly back into position.

Bitte zweites Foto von alter Seite 1-21 hier einfuegen

2. Reconnect the CRT socket, the ground wire, the cable to the keyboard assembly, the HV
connection and the choke connection. Reinsert parameter boards.

Bitte letztes Foto von alter Seite 1-21 hier einfuegen

Reassembly Procedures 1 b-5

Power Supply Reassembly

1. Secure the power inlet connector back into position.

2. Insert primary power supply board A7.
Note: Make sure that Board fits exactly in slot of rear heat sink.

Bitte die beiden obersten Foto von alter Seite l-22 nebeneinander hier einfuegen

3. Screw back into place (two lower screws).

4. Reconnect transformer to the primary power supply board A7.

Bitte die beiden untersten Fotos von alter Seite l-22 nebeneinander hier einfuegen

1 b-6

Reassembly Procedures

5. Position secondary power supply board A6 in slot provided and screw to rear panel.

6. Reconnect transformer to the secondary power supply board A6, making sure that all of
the connector pins make proper contact. Reconnect battery connection (if fitted).

Bitte die beiden obersten Fotos von alter Seite l-23 nebeneinander hier einfuegen

7. Reinstall power supply cover.

8. Screw two side screws back into position.

Bitte die beiden untersten Fotos von alter Seite l-23 nebeneinander hier einfuegen

Reassembly Procedures 1 b-7

9. Screw rod back into position between the two power supply boards.

10. Secure top of cover with the two screws.

Bitte die beiden obersten Fotos von alter Seite l-24 nebeneinander hier einfuegen

11. Slot rear-panel insert back into position.

12. Secure rear panel insert by screwing the potential equalisation connector back into
position.

Bitte die beiden untersten Fotos von alter Seite l-24 nebeneinander hier einfuegen

1 b-8 Reassembly Procedures

13. Check that the soldered ground connection is still intact.

Bitte oberstes Foto von alter Seite l-25 hier einfuegen

Power Supply Assembly Installation

1. Slot the power supply assembly into the bottom cover at the rear of the Monitor. Lower

the assembly back into position taking care not to clamp any of the cables underneath.

2. Screw power supply assembly back into position with the one screw required.

Bitte die beiden mittleren Fotos von alter Seite l-25 nebeneinander hier einfuegen

3. Check that power on/off switch coupler makes mechanical contact with the switch. Test
the on/off switch to see that it works.

Bitte unterstes Foto von alter Seite l-25 hier einfuegen

Reassembly Procedures 1 b-9

NIBP Pump and Board Reassembly (78352A/C and 78354A/C)

Reassembly is the reverse of disassembly. With the 78352A monitor care should be taken
when sliding in the NIBP board not to trap the tubing leading to the transducer between the
NIBP board and any adjacent board. Fit tube leading down to front panel connector between
the board and RHS side panel. Note the correct tubing connections:-

78352A/C, 78354A/C

(dc pump)

78354A (ac pump)

Bitte die beiden obersten Fotos von alter Seite l-26 nebeneinander hier einfuegen

Cover Installation

Remount side covers (4 bottom screws) and put the board stabilizer back into position.
Remount top cover with 4 top screws.

Bitte die beiden unteren Fotos von alter Seite l-26 nebeneinander hier einfuegen

1 b-10 Reassembly Procedures

lc

Adjustments

Introduction

In order to make any adjustments it is necessary to remove the top cover of the instrument;
so, during the adjustment procedures take care to avoid contact with exposed high voltage
sources.

To make any of the adjustments it is necessary to enter the monitor test mode.
To do this, first ensure that the monitor is switched off for at least 20 s.
Now press the softkeys labelled JL or (CalMark) and Z or (Suspend) simultaneously, then switch

the monitor on whilst keeping the buttons pressed. Hold pressed until the prompt tone is
heard. The CRT adjustment grid will now appear on the screen.

In this mode the softkeys have the following functions:
(cal,,,s;) n
Istopl STOP Press to display service/test waveform - non- overlapping

(used in “CRT Adjustments” and “Interpolation Board Adjustments”
See Figure lc-3*

(Overview) fi

(PatientData)~

(Record) q

The remainder of this section contains the detailed adjustment procedures.

*only one service/test waveform available in 78352A/C.

Press to display service /test waveform with channels 2
and 3 overlapping (used in “Interpolation Board Adjustments”.

Press to enter into system 780 configeration mode (only if
780 annotating system and SDN board is installed) (used in

“System 780 Configuration Adjustments”)

Press to display part numbers of ROMs loaded (hence
software revision status eg. 5180-XxXx, 5181-XxXx)

Adjustments 1 c-l

CRT Adjustments

These adjustments are made using components on the motherboard and the CRT assembly

and are normally only required after a mother board or CRT exchange. The location of these

components is shown in Figure lc-1.

Display the CRT adjustment grid on the screen as described in “Introduction” then follow the

adjustment procedure below:

1. Optimize the display with cut-off adjust AlR55

2. If the horizontal synchronization is out of range, adjust with AlR21

3. Adjust the horizontal amplitude with AlR28. The vertical lines to the right and the left
of the grid should just be visible at the edge of the screen.

If the adjustment grid is not in a central position it will not be possible to make this
adjustment. In this case, rotate the centering magnets (see Figure lc-1) on the CRT until
the grid is centered then repeat the adjustment.

4. Adjust the linearity with AlR22. The horizontal grid subsections should all be of equal
length.

5. AlR28 and AlR22 are interactive, so repeat steps 3) and 4) until optimum result is
achieved.

6. Adjust the vertical amplitude with AlL2. The horizontal lines above and below the grid
should just be visible at the edge of the screen.

If the adjustment grid is not in a central position see paragraph 4) for centering
procedure.

7. Adjust the linearity with AlL3. The vertical grid subsections should all be of equal
length.

8. Next press the softkey labelled STOP to display the service/test waveform
(non-overlapping).

9. Check the interpolation - there should be no modulation of the test waveform intensity. If
there is modulation, adjust AlR55 again until it is reduced to a minimum.

10. Switch the instrument off then after 20 seconds back on again. The initial monitoring
display should appear.

11. Adjust the focus with AlR38.

lc-2 Adjustments

12. Check the length of the baseline - it should be 97 mm.

13. Adjust the intensity with the rear panel screwdriver control.

14. Switch the monitor off and after 20 seconds on again, and display the CRT adjustment
grid. (see “Introduction”)

15. If the shape of the adjustment grid is distorted, i.e. the gridlines are curved, optimise the
shape by repositioning the small magnets on the ring at the front of the deflection yoke
assembly. See Figure lc-1.

Components for Adjustment Centering and Ring Magnets

Diagram und Photo von alte Seite l-29 hier einfiigen

Figure lc-1. Location of Components for Adjustment and of Centering and Ring Magnets

Adjustments lc-3

Interpolation Board Adjustments
Note

The 78352A/C

monitor uses Interpolation Board 78352-66503, all other

monitors described in this manual use Interpolation Board 78353-66503.

78352A/C adjustments are contained in brackets.

Yll

All interpolation board adjustments are made using the nine potentiometers on the
78353-66503 board and three potentiometers on the 78352-66503 board.

Gain and Offset Adjustments
First enter the monitor test mode and press STOP key to display the service/test waveform in

non-overlapping mode (see “Introduction”). Now follow the adjustment procedure below:

a. Adjust the gain for channel 1 using A3RlO (78352A/C: A3/R19) until the distance between

the 1st (bottom) and 3rd levels of the step waveform is approximately the same as the

distance between the graticule lines.

b. Adjust the offset for channel 1 using A3R28 (78352A/C: A3/R29) until the two levels of

the step waveform are directly on the graticule lines

c. As A3RlO and A3R28 (78352A/C: A3/R19 and A3/R29) are interactive it may be

necessary to repeat steps a) and b) until an optimum result is obtained.

d. Adjust the gain and offset for.channels 2 and 3 as for channel 1 above but using A3R30,

A3R8 and A3R20, A3R18 respectively.

e. t To check the adjustment, press # or COverview) key to display the service test waveform

with channels 2 and 3 overlapping (see “Introduction”).

f. t The waveforms for channels 2 and 3 should be of equal size and the step waveforms level

with each other (Figure l-56). If not, adjust the offset and gain for channels 2 and 3 in this
mode until an optimum result is achieved.

Baseline Width Adjustment
Enter the monitor test mode and display the service/test waveform (see “Introduction”)
a. Adjust the width of the baseline of the channel 1 waveform using A3R37

A3/R12).

e waveform should have the same intensity at every point.

Th

(78352A/C:

b. t Adjust the baseline width of the channel 2 and 3 waveforms in the same way using

A3R39 and A3R38 respectively.

Note

t Not applicable to 78832A and 78352A/C)

lc-4 Adjustments

OS1 Gl OS2

c2 OS3

G3

Wl W2

W3

r

Figure lc-2. Location of interp. bd adjustment potentiometers (78353 - 66503)

See Chapter lc for details on how to enter the following display modes:

Service/test waveform
(non-overlapping,
3 channel interp.)

Figure 103. Service/Test Waveform

Service/test waveform
(channels 2 + 3 overlapping,
3 channel Interp.)

Adjustments lc-5

Figure 1 c-4.

Location of interpolation board (78352 - 66503) adjustment potiometers and 78352A/C

service/test waveform

1 c-6 Adjustments

ECG Adjustments
Note

3

Offset Adjustment

1. Switch monitor on and connect ECG patient cable and lead set.

2. Short all the leads together.

3. Select diagnostic mode and ensure that switch 1 of A22Sl is closed.

4. Ensure that switch S2 on the mother board is programmed to output the ECG wave at the
rear panel phone jack (switch 4 closed and switches 1, 2 and 3 open).

5. Connect a DVM to the rear panel phone jack.

6. Adjust A22R69 so that the DVM reading equals OV f 20 mV.

Notch Filter Adjustment
60 Hz
50Hz

1. Connect the test equipment as shown in Figure lc-5

Note: all boards are already adjusted in the factory.

78832-66542, 78354-66542
78832-66522, 78354-66522

2. Ensure that switch S2 on the mother board is programmed to output the ECG wave at the
rear panel phone jack (switch 4 closed and switches 1, 2 and 3 open)

3. Switch monitor on and select diagnostic mode and lead II.

4. Apply a 5 V peak-to-peak sine wave at 50 or 60 Hz (main frequency) to the test circuit.

5. Trigger the oscilloscope to the line frequency (only possible when the line frequency equals

the notch frequency).

6. Adjust A22R82 until the wave ouput displayed on the oscilloscope is at minimum
amplitude.

Note

The Full Lead ECG board (78354-66522) has 3 switches, the positions and
location of which are shown in the Jumper & Switches in “ECG Board (Full
lead) 78354-66522, 66722” in Chapter Id.

Adjustments 1 c-7

Figure lc-5. Location of A22R69 and A22R82

78SXX ser1er
14337A114336A

REAR-PANEL REAR-PANEL
PHONE JACK PHONE JACK

OSCILLOSCOPE OSCILLOSCOPE

P.N.

10501A

FUNCTION
GENERATOR

TEST

CIRCUIT

769XX serie*

149678114467A
PATIENT CABLE

,- ----1
#$

Figure 106. Notch Filter Adjustment - Test Equipment

Power Supply Adjustments

-4 Volt Adjustment
a. Switch the monitor on.

b. Connect a DVM to ground and to the -4 V test pin at the top of the power supply board

A6.

c. Adjust A6, R5, located next to this pin, so that the DVM reading equals -4 V f 3 mV.

1 c-8 Adjustments

System 780 Annotating Analog Interface (Opt. Jll)

The annotating 780 system board (78353-66592) provides full parameter, alarm and recorder
information. There are six alternative output- connector configurations which are shown in

table 1. (For more detailed information please refer to pages l-42 to l-44)..

System 780 Configuration Adjustments

The system interface is configured using the softkeys. First, enter the system 780

configuration mode as described in “Introduction”.
The functions of the softkeys are now as follows:

Cal Mark JL

Press to select one of the seven possible configurations of

the signals at the system output connector (see Table lc-1).
(Stop) STOP
(Overview) #

Press to select latching or nonlatching system alarms.

Press to change temperature offset (see offset adjustment

below). This should not be necessary as the value is set at the

factory.
[PatientData)D

Press to change general parameter offset (see offset adjustment

below). This should not be necessary as the value is set at the

factory.

Record IL

Press to store configuration values. When store procedure is

successfully completed the monitor returns to the previous

operating level and the CRT adjustment grid is displayed.

Off set Adjustment

It may be necessary to adjust the system 780 board if the EAROM has lost information. In
this case follow the procedure below:

a. General parameter offset

With the monitor in system ‘780 configuration mode, measure the general offset at TPl. If

it is zero volts the offset is correct. If it is not zero volts the offset must be adjusted using

the softkey indicated above.
The softkey label will show the offset correction step number and will rotate over the full

positive and negative range, increasing the number by one each time the key is pressed.
Press the softkey until the value is zero volts. The step size is 2.5 mV.

b. Temperature parameter offset

Note

With option N12 (G erman temperature standards) this adjustment is not
possible.

With the monitor in system 780 configuration mode, measure the temperature offset on pin

10 of system output connector (J91). If it is zero volts the offset is correct. If it is not zero
volts the offset should be adjusted. To enable the adjustment procedure, connect X3 pin 2
to ground.

Adjustments 1 c-9

For adjustment, use the temperature offset softkey. The procedure is the same as for the
general parameter offset described above. Press the softkey until the value is zero volts.
The step size is 1.25 mV.

c. Store the offset correction values by pressing the store softkey. The monitor returns to the

previous operating level (monitor test mode) when store procedure is complete.

Note

d. Temperature gain adjustment

Note

With the monitor in
signal on pin 10 of system output connector (J91). The measurement value in this
operating level should be 2.558V f 0 mV, otherwise adjust with potentiometer R204.

A gain adjustment is necessary in monitor test mode for temperature.

With option N12
possible.

monitor test

(G erman temperature Standards) this adjustment is not

mode (grid raster display) measure the temperature

lc-10 Adjustments

Figure 1~7. Location of R204 and TPl

Explanation of Configurations in Table lc-I.

Configuration 0:

Configuration 1:

Configuration 2:

Configuration 3:

Configuration 4:

Configuration 5:

Configuration 6:

Monitor with 7811B control center without arrhythmia
system. Bedside recorder 78171/2/3.

Monitor with 78501/2/4/8 Speakeasy control center without
arrhythmia system.

Monitor with 7811B control center with arrhythmia system.
No parameter values Systole and Diastole for invasive blood
pressure 2.

Monitor with 78501/2/4/8 Speakeasy control center with
arrhythmia system. No Resp. or CO2 curve.

Corresponds to Config. 0, but with a fixed allocation of
the recorder channels 1 and 2 with “Delayed ECG” on channel

1 and “Delayed Press 1” on channel 2. This corresponds to

the default configuration in Config. 0.
Special neonatal version with CRG-option. Cannot be

selected on the adult-monitor mode. Switch Sl must be
opened in operation with 8232 alarm recorder.

Only on OR multi-channel recorder. This version cannot be
selected on the German language option as there is no
allowance by PTB on 2. temperature.

Warning

In configurations O-4 and 6, the switch Sl must be closed.

Adjustments 1~11

Table lc-1. System Output Configurations

J92

pin
no.

1 ECG wave

2 pleth wave encoded pleth wave encoded pleth wave

3 signal gnd.

4 recorder encoded recorder encoded recorder tcpcoz

5

6

7 INOP

8 reset

9

10 temp 1.

11 resp. rate

12

0 1 1*

deselect deselect

data alarm data alarm

recorder

return INOP return INOP return

encoded recorder encoded recorder ‘Temp.2 ***

Configurations O-6

2 3 4

analog

alarm gnd.

heart rate average

patient alarm

5s 6

tcpo2

data

***

A

scaled

pressure 2 pressure 2 pressure 2 pressure 2 pressure 2

wave

B

C

absolute

(6’3)

scaled absolute scaled absolute

pressure 1 pressure 1 pressure 1 pressure 1

wave

scaled

wave

systolic

pressure 1

D diastolic

pressure 1

E

F

H

CO2 /resp. resp. CO2 wave resp scaled

wave wave wave pressure 2 wave

systolic absolute systolic cardio

pressure 2 pressure 1 pressure 2

mean heart rate

pressure 2

wave (300) mode

absolute scaled tcpco* ECG wave

(60)

(300)

wave

wave

wave

absolute

pressure 2

wave

absolute

pressure 3

wave

CO2 wave

b-to-b

**

pleth wave

respirogram

resp.

wave

1~12 Adjustments

Table 1~1. System Output Configurations (continued)

592

pin
no. 0

J

K

L diastolic

M mean

N

*
**

***
****

output configuration for CO2 /02 parameter
for cardiorespirogram mode, switch Sl on system board should be open

no Aux Wave because it is available as analog signal
output configuration not available in German Language Option (PTB)

recorder ET COz recorder scaled delayed delayed NIBP wave

channel 2 channel 2 pressure 1 pressure 1

pressure 2 pressure 2 pressure 2

recorder control control recorder control delayed

channel 1 state 1 state 5 channel 1 state 1 ECG wave HR b-to-b

1

Fi 02

Configurations O-6

1* 2 3 4 5# 6

resp.

wave wave wave

ALARM ON/

OFF

absolute diastolic Fi 02

wave (60)

ET CO2

pressure 1

delayed HR b-to-b

***

#

only available in 788Xx series

Adjustments 1~13

SDN Configuration Adjustments

The system distribution network board is configured using the softkeys.
To do this, first ensure that the monitor is switched off for at least 20s. Now press the keys

labelled JL or [Cal) and E or (Suspend) simultaneously, then switch the monitor on
whilst keeping the buttons pressed. Hold pressed until the prompt tone is heard. The CRT

adjustment grid now appears on the screen.
Enter the SDN configuration mode by pressing m or (Patient] key and the following

display will appear:
SYSTEM
NETWORK TEST (CalMark) J-L
FACTORY DATA (Stop) STOP

ECHO (Overview) #

(Patient-a
BACK TO SETUP (Record) H Press to return screen to grid display

When the NETWORK TEST softkey is pressed the following display appears:

NEXT BRANCH

(Cal)

Press to select branch connection information
Press to select sensitivity, R/Y or INOP alarms,

alarm mode and arrhythmia on/off.
Press to initiate test - comprises of a 500 TEST

word message transmitted to the SDN board

(performed in the factory only)

. . .

JL Press for next branch

(up to 321

BRANCH 0 (Stop) STOP

OOlC

28

f&xi-) #

BACK TO SETUP

Pressing the NEXT BRANCH softkey advances the display to the next branch in the network
upto the maximum number of 32 branches. The information in the center of the screen
indicates the branch being observed and the identity of the downstream instrument (in this
case a 78504A Patient Information Center - see following “Instrument Identity”). The second
entry (OOlC) encodes the instrument status (see following “Instrument Data Transmission
Errors” and “Instrument Status Word”).

(iGi-- 8.. Press

to return softkeys

to

SYSTEM display

1~14 Adjustments

Pressing the FACTORY DATA softkey gives the following display;
FACTORY DATA SYSTEM
AL CONF =RYI [Mark) n

Select sensitivity RY, RI or RYI
alarm configuration

AL MODE =AUTO lstopl STOP

Select either AUTO or DEMAND for

alarm display t

AR WAVE=ON (Overvie;v) @

Select on or off arrhythmia

delayed ECG wave

(Patient-a

STORE CONF ljj) L-51

. . .

Press to store and return

display to previous

Pressing the ECHO TEST softkey clears the display of all other functions and only the
words ECHO TEST are left on the screen. This function is performed in the factory during
service checks and a 500 word message is transmitted to the SDN board for processing and
re-transmission back to the board testing device.

Note

t DEMAND mode is the standard setting on the 78352A/C monitor and on
other instruments with SDN the standard setting is AUTO.

3

Note

The alarm latching/non-latching function of the SDN board is selected on
switch block Sl, visual alarm switch 7, on the Display UP Board.

Instrument Identity

YY Instrument

03 785348
28 785048
48 785048
68 78504A
88 785048
A8 7850411
C8 785046

28 785088
48 785088
68 78508A
8A 785088
AA 78508A
CA 7850811

ID no.

Adjustments lc-15

Instrument Data Transmission Errors

BIT
76543210

l....... False SPS Event Flag

1 . . . Fatal Control Error Flag

l.....

1 Physical Data Error Flag

l... Logical Data Error Flag

1..

1. System Cycle Failure Flag

. . . . . .

Recoverable Control Flag Error

Poll Cycle Overflow Flag

Bo Error

Instrument Status Word

BIT
76543210

x.. .

x.. .
0
1

. . .

. . .
x..
0 . .

1.

x
0 .

1..

Self Test State (=l during Self Test)
Configuration State
Autopoll
SDU
DLC Line State
Offline
Online
System Cycle State

Local

Betaork

xx

Start/Restart Indicators

2 .

starting = 1

2

Restarting = 1

Binary to Hex Conversion Table

Binary Her

0 0000
0 0001
0 0010

0 0011

0 0100
0 0101
0 0110
0 0111

0 1000
0 1001
0 1010
0 1011
0 1100

0 1101
0 1110
0 1111

1 0000

0
1
2

3

4
5
6
7
8
9
A
B
c
D
E
F
10

lc-16 Adjustments

Id

Jumpers & Switch Programming

Jumpers & Switch Programming for all Boards

Mother Board: 78353-665013 and 7835446501

Switches Sl and S2 on the Mother board are accessible when the top cover and parameter
boards are removed.

Programming Switch Sl
The Switch functions are shown below:
Conditions when switch closed.

1 Aux alarm to XlOC/18 (78353-66552

PAT Board only)

2 +5V buffered from A19 to XlOC/18

(OPEN = No Trend)

3 RESET signal is routed to X19 pin

14

Switch Sl

4 RESET signal is routed to System -

connector X91 pin 13
5 No contact
6 ICU alarm volume, possible to turn

alarm volume down to zero
7 QRS tone for Japan (switch closed

for option 202)
8 Standard QRS tone (OPEN for

option ZO2)

76366A

Jumpers & Switch Programming Id-1

Note

Either 2 or 1 must be open
The QRS tone is not available on the 78356A monitor. Switches Sl-7 and 8

should OPEN.

Note

t78354-66501 board replaces 78353-66501.
If replacement board is ordered check that the Revision number of the board

is B-2513, C or greater. If it is not then for monitor 78834A Opt A22 only,

connect pin 11 on X83 to pin 6 on X4 (see wiring diagram). This is already
done on boards 78354-66501 with Revision B-2513, C or greater.

Programming Switch S2

This switch controls which parameter wave is present at the phone jack output on the rear
panel.

Condition when switch closed.

1 Not connected
2 Parameter wave from XlOC
3 Parameter wave from XlOB
4 Parameter wave from XlOA

Note
Standard settings are listed in summary table opposite.
Switches 4 should be in the CLOSED position to get the
ECG wave on limited I/F output. If this is abered the
label on the side panel should be changed.
The parameter wave options are not available on the

73352A

78356A

78356A monitor. Switches S2-2 and 3 should be open.

Switch S2

ld-2 Jumpers & Switch Programming

Programming Switch S3

Switch S3 is located on the Extender Board.

1 OPEN: No parameter wave from Mother Board

CLOSED: Parameter wave from Mother Board
2 Parameter wave from Y/X6C} Sl
3 Parameter wave from Y/XGB} must be

open

Switch S3

4 Parameter wave from Y/XGA} OPEN

Note

Standard setting is SI CLOSED, S2/S3/S4 OPEN.

Sl is OPEN if 2 or 3 or 4 switch are CLOSED.

Programming Switch S4

Switch S4 is located on the Extender Board and configured according to the instrument and

option:

78354A #A22, #A23
1 CLOSED } K4 to 1 OPEN } K5 to

2 OPEN } Keyboard 2 CLOSED } Keyboard
3 OPEN }

4 CLOSED } code-2 4 OPEN } code-3

Slot

78834A #A22

3 OPEN }

Slot

Switch S4

All other options:
1 OPEN } no K

2 OPEN } to Keyboard
not used } Slot is

not used } not used

Jumpers 81 Switch Programming id-3

Summary of Sl and S2 switch positions for 78354-88501 Mother Board:.

Sl Function when

783528 783538 78832A 788338 78833B 78353B

783568

Switch closed

78352C

78354A/C
78834A/C

1 Aux alarm OPEN

2

+5V Buffered

CLOSED OPEN CLOSED CLOSED CLOSED CLOSED

CLOSED OPEN OPEN OPEN

OPEN

OPEN

CLOSED

Reset to X91-13(Ltd.I/F) CLOSED CLOSED CLOSED CLOSED CLOSED CLOSED

3
CLOSED
4 Reset to X19-4(alrm Imp) CLOSED CLOSED CLOSED CLOSED CLOSED CLOSED
CLOSED
5

No contact
6 ICU alarm vol. zero
7

Japan QRS tone( 202)

8

Std. QRS tone

OPEN
OPEN
CLOSED CLOSED CLOSED CLOSED CLOSED CLOSED OPEN

OPEN OPEN OPEN OPEN OPEN OPEN
OPEN

OPEN

OPEN OPEN

OPEN

OPEN

s2

1

No contact
2

Param. wave from XlOC
3

Param. wave from XlOB
4

Param. wave from XlOA

OPEN
CLOSED OPEN OPEN OPEN
CLOSED CLOSED CLOSED CLOSED CLOSED CLOSED OPEN

OPEN

OPEN

OPEN

OPEN OPEN OPEN
OPEN OPEN OPEN

ld-4 Jumpers 81 Switch Programming

Blatt von alte Seite 1-42 hier einfiigen

Figure Id-l. Location of Al/Sl,SP and A4/S3,S4

Jumpers & Switch Programming id-5

Display UP Board 78353/4-66502,78354-66602 and 78354-66702

Jumpers: Ju2 on the Display UP board is set at 0 ohm.

Programming Switch Sl

Switch Sl on the Display UP board is accessible when the top cover and the left side cover

have been removed. It consists of eight mini switches. The functions of these switches are

shown below.

I

L

Switch Sl

OPEN

1 Trend

2 Alarm reminder

every 3 minutes

3’ 2 channel display

4 78353-66592 or

78353-66595 loaded

5 Alarms off at power-on

6 Audible Alarm latched
7 Visual Alarm latched
8 Adult monitor

(78352/3/4)

*No effect on 78354-66702

CLOSED
No Trend
Silent Mode

3 channel display
78353-66590 or

no system board loaded
Alarms off for three minutes

the automatically switched on
Audible Alarm non-latched
Visual Alarm non-latched
Neonatal monitor (78832/3/4)

On models before 1st June 88, there are two more sets of switches. These are replaced by

jumpers on current models:

ld-8 Jumpers & Switch Programming

Programming Switch S2

Switch S2 on the display microprocessor board is accessible when the top cover and the left
side cover have been removed. It consists of two miniswitches and in older boards was used
to program for single or multi- channel (2 or 3 channel) processing and display. Both switches
were left closed in later boards.

Switch S2

Programming Switch S3 (78354-88502 board only)

Switch S3 is accessible when the top cover and left side cover have been removed. It consists
of three miniswitches to change the ROM capacity. On later boards switches were always left
closed.

1 x 32K x 8EPROM(U26)

Switch S3

1 x 8K x 8EPROM(U50)

Jumpers & Switch Programming ld-7

The diagram below shows layout of board prior to June 88.

1

A

I

Figure ld-2. Location of A2Jul2, A2/Sl, S2, S3 (78354-66502)

6

I

c

I

D

ld-8 Jumpers 81 Switch Programming

Interpolation Board 78353-66503

Programming Switch Sl
Switch Sl on the interpolation board is programmed at the factory and controls the

segmentation of the display field. The switch positions are as follows:

10

These positions

Programming Switch S2 (not on Revision C boards and higher)
Switch S2 is also programmed at the factory and configures the circuits for use with 8Kx8

EPROM.
The Switch positions are as follows:

should

Switch 1

not

be changed

Positions for 78353A/3B/4A,
78833A/3B/4A (channel 2 in center of
screen)

Switch l-4 positions for 78832A (channel 2
in lower half of screen)

jj~Q/)(j~pJ~

,

These positions

SWITCH S2

Switches 1, 4, 5 and 6 not connected.

open

should noi be changed

Jumpers & Switch Programming ld-9

Jumpers
Jumpers 1 to 8 on the interpolation board are used to configure the circuits for 3 channel

operation. The standard connection, which should not be changed, is shown below.
o- - -0 Jul not connected
o---o Ju2 connected
o- - -0 Ju3 not connected
o- - -0 Ju4 not connected

‘Offset channel 3’ signal is routed through U4C
‘Chip select wave 3’ signal connected to U12A
+5V signal connected to U44B
‘Blank 3’ signal connected to Video Intensity

Circuits (U33)

--o Ju5 connected

0

o- - -0 Ju6 not connected

o-----o connected

Ju7

0-

- -0 not connected )

Ju8

Capacitor C26 optional

1

EPROM

on A3 o-----o not connected)on A3

78353-66502 Ju7

UP Display

:

Board o-----o connected

1

The locations of Sl, S2 and Jul-8 are shown below:

Ju8

)78354-66502

)uP Display
)Board

1

Figure ld-3. Location of A3/Sl, S2 and A3Jul - A3Ju8 (pre-Rev. C boards)

ld-10 Jumpers 81 Switch Programming

Figure ld-4. Location of A3/Sl and A3Jul - A3Ju8 (Rev. C boards)

Audio Board 78353-6651 l/12

Jumpers

Jumpers
Jumper Jul - Connected

OPEN

1 ECG wave from System ECG wave from ECG board

board via yellow wire

2 not used not used

CLOSED

Jumpers & Switch Programming Id-1 1

ECG Board (34ead) 78832-66522

Programming Switch Sl
Switch Sl on the ECG board is accessible when the top cover and the ECG board have been

removed.
The switch functions and standard positions are shown below:

Switch Sl

I

OPEN

1

HP Filter lower

frequency 0.5 Hz

(78832/3/4)

Switch 4 closed,

see below

78353A only: Alarm
default limits 20-200

bm

78832A/78833A only:

Trend capability

4

Switch 2 closed,

see above

CLOSED
HP lower frequency filter

determined by
FILTER/DIAGNOSTIC
setting (78352/3/4)

+5V normal supply
(783532/3/4)

Alarm default limits 50-120
bpm No trend capability

+5V supply buffered
(78832/3/4)
(buffers trend RAM’s on
parameter boards)

U27

I lllllIllllllllllllllll g

Figure ld-5. Location of A22/Sl

ld-12 Jumpers 81 Switch Programming

ECG Board (Full lead) 78354-66522,66722

Switches Sl, S2 and S3 on the ECG Board are accessible when the top cover and the board is

removed.

OPEN CLOSED

1 HP Filter lower

DIAG = 0.05Hz

No Trend

Switch 1

Switch 2

3 Must be open for ST

board 66722

OPEN

1 50Hz Notchfilter

2

OR

Standard ECG

No Trend

CLOSED

60 Hz Notchfilter
ICU/Arrhythmia bandwidth

Switch S3

OPEN

1 ICU/Arrhythmia

bandwith

2

OR

CLOSED

OR

ICU/Arrhythmia bandwidth

Jumpers & Switch Programming ld-13

Jumpers

Jumper Jul is used for board testing at the factory. Jul is CLOSED for normal operation and
OPEN for factory test only.

ld-14 Jumpers 81 Switch Programming

Pressure Board 78353-66532/4

Programming Switch Sl
Switch Sl on the pressure board is accessible when the top cover and the pressure board have

been removed. The switch configures the circuits for single or dual pressure monitoring and
units of pressure measurement.

OPEN

1 Pl/P2 on one

2 kPa,

Switch 1

Programming Switch S2
The switch functions of S2 are shown below:

OPEN

1 OPEN

2 CLOSED

1

CLOSED

2 OPEN
3 OPEN

4 CLOSED

3 CLOSED

4 OPEN

CLOSED

setup

key Pl/P2

on two separate setup

keys

mmHg

CLOSED
Normal 5V supply

(no trend option) - 78353/4
Buffered 5V supply

(trend option) - 78833/3
Use2Kx8RAM

(no trend option) - 78353/4
Ues 8 K x 8 RAM

(trend option) - 78833/4

Switch 2

Jumpers & Switch Programming

ld-15

r

t’

*

I

I

Figure ld-6. Location of A34/Sl, S2

How to change the pressure scaling mode:

1. Turn the Monitor off for at least 1 minute

2. Depress the alarm reset
switch the Monitor on.

g or (Silence/Reset) key and the CAL softkey simultaneously and

Hold these buttons depressed until the test waveforms appear.

3. Press the Pl setup button

4. Press the ALARM softkey and cycle through until “alarms off’ appears in the display.

5. Press and hold the unlabelled m or (Patient] softkey for at least 10 seconds

6. Switch the Monitor off, and then on again.

ld-16 Jumpers & Switch Programming

NIBP Board 78354-66535 and 78352-66535

Switches and jumpers are accessible when the top cover and the NIBP board have been
removed.

Switch 1

Switch 2

Switch S3 is not used

OPEN

1 kPa

2 Service Mode

1 OPEN

2 CLOSED

1

CLOSED

2

OPEN

CLOSED

mmHg

Normal Operating Mode

Buffered +5V supply

for trend (#ElO)

Normal +5V supply

(no trend)

Note

gm-

%?EJ~

1 OPEN

2 CLOSED

1 CLOSED 16K

2 OPEN

32K x 8 EPROM

(trend)

x 8 EPROM (no trend)

(no trend)

@I

Switch 4

Switch S4 is only loaded on 78354-66535 Rev B boards and higher and on
78352-66535 Rev. A boards.

Jumpers & Switch Programming ld-17

Jumpers

Note: Jumpers Jul and Ju2 are only loaded on Rev. A boards.

Standard

Jul not loaded loaded

Ju2 loaded
Ju3 loaded
Ju4 not loaded loaded

#El0

not loaded
not loaded

Function: / distinguishes between
32K x 8 EPROM
or

16K x 8 EPROM
16K x 8 RAM

32K x 8 RAM

ld-18 Jumpers & Switch Programming

7635&- 66535

I

h

Figure ld-7. Location of A35/Sl, S2 and A35/Jul-4 (78354-66535 Rev. A boards)

A

I

0

Figure ld-8. Location of A35/Sl, S2, S4 and A35/Ju3, Ju4

(78354-66535 Rev. B boards and higher and 78352-66535 Rev. A boards)

Jumpers 81 Switch Programming ld-19

I I

1

I

CO2/02 Board 78354-66540 and 78356-66540

Switches Sl,S2 are accessible when the top cover and the CO2/02 board have been removed.

Note

In later instruments, 78356-66540 replaces 78354-66540.

Programming Switch Sl (78354-66540 only)

OPEN

1 No Resp. Rate Resp. Rate displayed from

from CO2

(OPEN for AlO+CO2, A12+COz/COs, A06, CO3
A19, Cl& AM, CM)

2 kPa (Opt. E22) mmHg

Programming Switch Sl (78356-66540 only)

OPEN

1 Not used Not used
2 78256A only
3 No Resp. Rate Resp. Rate displayed from

from CO2

(OPEN for A12/COz)

4 kPa (Opt. E22) mmHg

CLOSED

CO2 signal

CLOSED

All other instruments

CO2 signal

ld-20 Jumpers & Switch Programming

Programming Switch S2

Note: 8K RAM is Std

+5V Buffered } Trend

+5V Normal } No Trend

- i”7 - -u- _ ,“, _

Figure ld-9. Location of A40/Sl, S2 and A40Jul-Ju7

02 Board 78356-66541

Switch Sl is accessible when the top cover and the 02 board have been removed.

Note

!fl

In later instruments, 78356-66541 replaces 78354-66541.

Programming Switch Sl (78356-66541 only)

1 Not used Not used
2 78356A only

CLOSED

all other instruments

Jumpers & Switch Programming id-21

Blatt von alter Seite l-55 hier einfiigen

Figure ld-10. Location of A41/Sl

ld-22 Jumpers & Switch Programming

Programming Switch Sl

OPEN

1 Not used
2 -­3 4MHz from Mother Bd.
4 Not used
5 Aux CO2 mmHg
6 Aux PRESS mmHg
7 2K RAM
8 8K RAM (Trend)

CLOSED
Not used
4MHz from Mother Bd.

Not used
Aux CO2 kPa
Aux PRESS kPa
8K RAM (Trend)
2K RAM

There is no S2
Programming Switch S3

1 CLOSED
2 OPEN

1 CLOSED
2 CLOSED

+5V normal (no Trend)

+5V Buffered (Trend)

Jumpers & Switch Programming ld-23

-I]-- -

- R‘, -

-

Figure Id-11. Location A52/Sl, S3

ld-24 Jumpers & Switch Programming

Temperature Board 78353-66554

Programming Switch Sl
Switch Sl on the temperature board consist of two mini switches, only one of which is

currently used.

When switch 1 is open, temperature signals Tl and T2 are

1

0 0

0

id

E7l

Switch Sl

0

0 en

2

both processed in the digital circuits.
When switch Sl is closed, temperature signal AT (=Tl- T2) is

processed in the digital cicuits.
Switch 2 is not used.

.

p --cl‘ -

B

“21 “9

5 -

.

SI

30

Figure ld-12. Location of A54/Sl

n

- Al2 - -RI1 -

-CQ -

--c‘ -

--rlQ -

--RB -

--cs -

--RIO -

dR3-

01

.

0

-RR)0 --

r-C.R5 -

@

--21 -

--R21 -

-CR‘-

02

.

0

Jumpers 81 Switch Programming ld-25

Temperature Board 78354-66554

Programming Switch Sl

Switch Sl on the temperature board consists of two mini switches, only one of which is
currently used.

When switch 1 is open, temperature signals Tl and T2 are
both processed in the digital circuits.

When switch is closed, temperature signal AT (=Tl-T2) is
processed in the digital circuits.

Mini switch 2 is not used.

Switch Sl

There is no Switch S2

Programming Switch S3

1 OPEN +5V normal

2 CLOSED (no Trend) - 78352/3/4

1 CLOSED

2

OPEN (Trend) - 78833/4

+5V Buffered

Switch S3

78354 - 6655L

- CII-

I

A

.qY

I

- m- “8

-7 rl

B

Figure ld-13. Location of A54/Sl, S3

ld-26 Jumpers & Switch Programming

Respiration Board 78832-66562

Programming Switch Sl
Switch Sl on the Respiration board is accessible when the top cover and the respiration board

have been removed. The switch functions and standard positions are shown below:

OPEN
+5V supply normal

1

(Switch 2 CLOSED)

+5V supply buffered

2

(Switch 1 CLOSED)

Trend capability

3
4

Not used (must be OPEN)

Jumpers

Connection of jumpers Ju5 and Ju6 on the respiration board depends on the type of RAM

used for U18.
w For type 6116 RAM jumper Ju6 is connected and Ju5 is not connected.

w For type 8464 RAM jumper Ju5 is connected and Ju6 is not connected.

CLOSED
+5V supply buffered

(Trend) -78832/3/4
+5V supply normal

(no Trend) -78352/3/4
no Trend

II

i

1

Figure ld-14. Location of A62/Sl, A62Ju5, A62Ju6

Jumpers & Switch Programming ld-27

\

Cl7

-1

- CII
VIZ

- R52-- R

a

- R57--

- RSL - ­pi-p-pl

1

tcp02/C02 Board 78834-66572

Switch Sl on transcutaneous board is configured as follows;

10634- 66572

Switch 1

OPEN

tcp02 enabled
tcpCO2 enabled
correction enabled
mmHg

CLOSED
tcp02 disabled
tcpC02 disabled
correction disabled
kPa

Figure ld-15. Location of A72/Sl

ld-26 Jumpers & Switch Programming

1

SpO2 Board 78354-66510

There is only one switch on the Oxygen saturation board. It is configured as follows:

OPEN
1 Normal
2 Normal setting
3 Wave amplitude

=Perfusion

4 Normal setting

setting

CLOSED
Not used at present
Not used at present

Wave amplitude

= SQl (SpO2 signal

quality indication

Not used at present

System Board 78353-66590

Switch 1 on the System Board 78353-66590 is configured as follows:

OPEN
1 Switch S2 CLOSED

see below

2 Switch 1 CLOSED

see above

3 78832/3/4 (selects

beat-to-beat HR)

CLOSED
selects ECG with variable gain

from system board
selects ECG with variable gain

from ECG board
78352/3/4 average HR)

788321314
With Resp. parameter

788321314
Beat-to-beat HR
to output

783521314
HR DC to output

78832/3/4
Resp. wave to pin J

788321314
HR beat-to-beat to

X92 pin N

Switch 1

QQa

7se3x

4 783521314

No Resp. parameter

5 78352/3/4

Switch 6 CLOSED

see below

6 788321314

Switch 5 CLOSED
(see above)

7 783521314

8 783521314

Switch 2 on the System Board 78353-66590 is configured as follows:

Jumpers 81 Switch Programming ld-29

Switch 2

r

OPEN
1 Not used
2 Normal operation

CLOSED
Not Used
auxiliary alarm to output

(service switch)

Figure ld-16. Location of A90/Sl, S2

ld-30 Jumpers & Switch Programming

System Board 78353-66592

Switch 1 on the System Board 78353-66592 is configured as follows:

Switch 1

OPEN

-RI52 - (

CLOSED

.

I

RW-

Figure Id-17. Location of A92/Sl

Jumpers 81 Switch Programming Id-31

RS-232C Interface Board 78354-66598

Prior to November 1988, Switch Sl on the RS232C Interface Board 78354-66598
configured as follows:

Switches l-4 bed
select ion numberg

Bed
No

1

2

3
Cl=OPEN 3
C=CLOSED 4

5

6

7

8

9

10
11

12
13
14
15

Switch

1 2
c c
0 c

c 0

0 0
0 0

c c

0 c
c 0
0 0

c c

0 c

c 0

0 0
c c
0 c
c 0
0 0

3
C
C
C
C
C
0

0
0

0
C
C
C

C

0

0

0

0

Switches 5-6 baud rate
selection for channel 2

4

5

6 7
C
C
C
C

C

C
C
C
C
C

I

I I

I

I I

I
I
I

I

0
C

0

0

C

C

C . . . . . 19200 baud (std HP rate)

I
I
I
I

0

---7= OPEN: Service test

. . . . . . 1200 baud

. . . . . . 2400 baud

. . . . . .

0

0
0
0
0
0
0

8=CLOSED: Op. mode

OPEN: Fact. mode

CLOSED: Op. mode

9600 baud

was

From the end of November 1988 new RS-232C software, introduced to enable use with the

new SpO2 parameter, uses switch l/4 to select and deselect alarm recording.
S1/4 Open - Alarm recording off / S1/4 Closed - Alarm recording on

It is only now possible to set bed numbers up to 7, using switches Sl/l, l/2 and l/3.

#For standard setting with all software, mode switches l-3 and 5-8 are CLOSED.

Id-32 Jumpers 81 Switch Programming

Blatt von alte Seite 1-65 hier einfiigen

Figure ld-18. Location of A98/Sl

NIBP Board (78352-66538)

There is only one switch on the new NIBP Board. It is configured as follows:

OPEN

1 mmHg
2 Adult only
3 Board slot 6
4 Repeat 15 min. (ICU)
5 Diast. corr. off
6 Default mode auto.

7

Trend

8 No trend

CLOSED
kPa
Adult/Ped./Neo.
Board slot 1 to 5
Repeat 5 min. (OR)
Diast. corr. on
Default mode manual
No trend
Trend

Jumpers & Switch Programming ld-33

le

Error Codes and Messages

Introduction

This chapter provides all the Error Codes and Error Messages for the 78XxX series Patient
and Neonatal Monitors.

Error Codes

Error codes can be displayed at any time during instrument operation or during the Power-on
self-test program. An error code may appear in the numeric field of a parameter, when related
to this parameter, or in the common message field when related to the instrument generally.
The error code is latched when both the Master Alarm capability and the specific parameter
alarm capability are ON.

The error codes are in alphanumeric form in three parts. <EYX>
The error code always begins with E. Y can be any number from 0 to 6 and represents the

location of the error as shown in table below.

Error Codes and Messages

le-1

Error Code Key - Fault Location

Y=

I

Instrument/Display/General

0

1
2
3
4
5
6

c

X is a letter or number representing a more detailed error diagnosis. Those currently in use
are shown in Table le-1.

Error Location

Parameter in slot 1 (XlOA)
Parameter in slot 2 (XlOB)
Parameter in slot 3 (XlOC)
Parameter in slot 4 (X6A)
Parameter in slot 5 (X6B)
System Board

Table le-1. Error Code Key - Fault Diagnosis

I x= I

1
2
3
4
5

0

F

Interpretation

Data error
Trend error
Communication error
Hardware malfunction
EAROM data error
Parameter malfunction - the parameter

board indicated by the first error code has a
fault.

Parameter missing after power fail < 15 s.
A comparison has been made between
parameters displayed before and after power
fail and one or more is missing.

Internally stored data lost
Trend data lost
Comm. with display lost

Replace EAROM
Replace parameter board or troubleshoot

down to componentlevel.

Ensure that parameter board is securely
connected to the mother board and input
connection board.

Cause/Remedy

Hence an example of an error code is: <E32>
which means that there is a RAM fault

slot 3 (connector XlOC). RAM1 should be replaced.
Two other error codes which might occur are:
<EYO>

<EYl> a suspected data error has been detected and a parameter or the instrument

indicates a parameter is not communicating correctly. In this case ensure that
the parameter board is properly connected then switch the instrument off.
Switch on again after 20s; if error code is still displayed replace the parameter
board.

may have reverted to default settings (the settings present when the
instrument is switched on). It is only necessary to check that these settings
are as required, then press Alarm Reset to cancel the error code display and
audible alarm.

(trend data lost)

on the parameter board which is in

le-2 Error Codes and Messages

ECG (783Xx series) Error Codes:

Error

<EYl>
<EY2>

t

Data error
Trend error

ECG (788Xx series) Error Codes:

Error

<EYl> Data error
<EY2> Trend error

Pressure Error Codes:

Error

<EYl> Data error
<EY2> Trend error
<EY5> EAROM checksum error
<EY6> RAM too small

Cause/Remedy

Data invalid

Trend data lost

Cause/Remedy

Data invalid

1 Trend data lost

Cause/Remedy

NIBP Error Codes:

<EYO>
<EYl>
<EY2>
<EY3>
<EY4>
<EY5>
<EY6>
<EY7>
<EY8>
<EY9>
<EYA>
<EYB>

<EYC>
<EYD>
<EYE>

Note

Data error
Trend error
Comm error
not used

Faulty EAROM data

Overpress error

Inflation error
Safety error
Deflation error
Zero errror

1
}not used

1
Production test error

Y = 4 (slot X6A)

Error

No error detected
Data invalid
Trend data lost
Communication with display lost

Overpressure switch on

Safety timer overflow

Zero offset value not in range

in 78354A; Y = 1 (slot XlOA) in 78352A

Cause/Remedy

Error Codes and Messages le-3

CO2 Error Codes:

<E41>
<E42>
<E43>
<E44>

<E45>
<E46>

Data lost
Trend data lost
Sensor malfunction
Instrument not correctly

calibrated
EAROM error
Wrong RAM

02 Error Codes:

<EYl>
<EY2>
<EY5>
<EY6>

Data lost
Trend data lost
EAROM error
Wrong RAM

Error

Error

Cause/Remedy

CO2 trend data lost.

Motor or heater defect.

Recalibrate (C02>150mmHg or
C02<-2mmHg)
Cal. constants, altitude etc.
Trend option uses 8K RAM, non-trend
uses 2K RAM. Change RAM or switching.

Cause/Remedy

02 related data is incorrect
02 trend data lost.
Exchange EAROM
Trend option uses 8K RAM, non-trend uses

2K RAM. Change RAM of switching.

Temperature (783Xx series) Error Codes:

Error

<EYl> Data error
<EY2> Trend data lost
<EYE> Reference error

Temperature (788Xx series) Error Codes:

Error

<EY6>
<EY7>
<EY8>
<EY9>

ADC error
ADC test failed
ADC not ready
ADC output for reference

Cause/Remedy

Built in reference temperature out of
range/malfunction.

Cause/Remedy

ADC defect
ADC defect
ADC defect
Relay defect? R out of range

le-4 Error Codes and Messages