Philips Pagewriter Trim Service manual (2)
PageWriter Trim I/II/III/Rx
Cardiograph Service Manual
Notice
About This Edition
Publication # 453564007071
Edition 1
May 2004
Copyright
© 2004 Koninklijke Philips
Electronics N.V. All rights are
reserved.
All other product names are the
property of their resp ective owners.
Permission is granted to copy and
distribute this document for
educational purposes.
Warranty
Philips Medical Systems makes no
warranty of any kind with regard to
this material, including, but not
limited to, the implied warranties or
merchantability and fitness for a
particular purpose.
Philips Medical Systems 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.
WARNING
As with electronic equipment,
Radio Frequency (RF) interference
between the cardiograph and any
existing RF transmitting or
receiving equipment at the
installation site, including
electrosurgical equipment, should
be evaluated carefully and any
limitations noted before the
equipment is placed in service.
Radio frequency generation from
electrosurgical equipment and close
proximity transmitters may
seriously degrade performance.
WARNING
Like all electronic devices, this
cardiograph is susceptible to
electrostatic discharge (ESD).
Electrostatic discharge typically
occurs when electrostatic energy is
transferred to the patient, the
electrodes, or the cardiograph.
ESD may result in ECG artifact that
may appear as narrow spikes on the
cardiograph display or on the
printed report. When ESD occurs,
the cardiograph ECG interpretation
may be inconsistent with the
physician interpretation.
Philips Medical Systems assumes
no liability for failures resulting
from RF interference between
Philips Medical Systems medical
electronics and any radio frequency
generating equipment at levels
exceeding those established by
applicable standards.
CAUTION
The use of parts or accessories other
than those approved by Philips
Medical Systems may compromise
product performance.
United States federal law restricts
this device to use by or on the order
of a physician.
THIS PRODUCT IS NOT
INTENDED FOR HOME USE.
Medical Device
Directive
The PageWriter Trim cardiograph
complies with the requirements of
the Medical Device Directive
93/42/EEC and carries the
0123
mark accordingly.
Authorized EU-representative:
Philips Medizinsysteme Böblingen
GmbH
Hewlett Packard Str. 2
71034 Böblingen
Germany
Contents
Chapter 1. Introduction
Who Should Use this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Conventions Used in this Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Important Patient and Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Features and Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Tour of PageWriter Trim Cardiographs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
PageWriter Trim I Cardiograph. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
PageWriter Trim II, III, and Rx Cardiograph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
Patient Interface Module (PIM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
General Service Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Repair Philosophy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11
Ordering Supplies, Options and Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
Country/Region Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
Standard Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
Supplies and Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Contacting a Philips Response Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
North America Response Centers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
Europe Response Centers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
Asia Pacific Response Centers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
Other Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
Chapter 2. Theory of Operation
System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Hardware Logical View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Main Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Patient Interface Module (PIM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Printer Control (USB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Battery (Lead-Acid) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Keyboard/Trim Knob (PS/2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Magnetic Card Reader (PS/2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Barcode Reader (PS/2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Smart Card Reader. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
PCMCIA LAN Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
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PCMCIA Modem Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
High Level ECG Data Flow and Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Internal Main Archive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Internal Remote Archive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
External PC Card Archives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Rendered ECG Report Prints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Fax-Rendered ECG Report Print. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Power System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Power Labels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
+3.3V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Power Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Battery Charging Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Battery Gauge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Battery Discharging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Battery Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12
Charge Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12
Battery Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Vin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
VB+_T (Battery information). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
+3.3VB_P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
VDDX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Vcore (+1.86V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
+5VP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
USB_VCC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
VPH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
Chapter 3. Cardiograph Care and Maintenance
Cleaning the Cardiograph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Approved Cleaning Solutions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Cleaning the PIM, Patient Data Cable, and Lead Wires . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Cleaning the Print Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Replacing Printer Paper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Battery Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Caring for the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Storing the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Replacing the Lead Wires in the PIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Cardiograph and Accessory Disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Setting the Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
PageWriter Trim II/III/Rx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
PageWriter Trim I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8
Maintenance Tests (Trim II/III/Rx) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9
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Chapter 4. Troubleshooting
Power On and Power Off Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Troubleshooting Cardiograph Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Display Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Keyboard/Trim Knob/Dedicated Key Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Signal Acquisition Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
Real Time Screen Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Archive Screen Issues. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8
Printer Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
PC Card Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13
Chapter 5. Performance Verification and Safety Tests
Required Testing Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
External Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Internal Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Test and Inspection Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
Performance Verification Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
Visual Inspection (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Power On Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
ECG Simulation (ECG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Safety Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Safety Test S1 - Earth Leakage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Safety Test S2 - Protective Earth Resistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Safety Test S3 - Leads Leakage Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Chapter 6. Removing and Replacing Cardiograph Components
About the Cardiograph Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Removing and Replacing the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Removing the Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Replacing the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
Removing and Replacing the AC Fuses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Removing and Replacing the Paper Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Removing the Paper Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Replacing the Paper Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Chapter 7. Parts and Accessories
Ordering Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Ordering Supplies and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
PIM Assembly and Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Cart Assembly and Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
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Appendix A. Specifications
Technical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1
ECG Acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1
Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1
Screen Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1
Patient Interface Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1
Cardiograph Cart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1
Signal Processing/Acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2
Sampling Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2
Auto Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2
Rhythm Frequency Response. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2
Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2
Printer Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2
Report Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2
Battery Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3
Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3
Recharge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3
Network Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3
FAX Capability (optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3
Modem (optional for USA and Canada) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3
Barcode Reader (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3
Magnetic Card Reader (optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3
ECG Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3
ECG File Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3
Power and Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-4
Line Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-4
Environmental Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-4
Environmental Storage Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-4
Cardiograph Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-4
Trim I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-4
Trim II/III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-4
Cardiograph Weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-4
Trim I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-4
Trim II/III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-4
Cardiograph Shipping Container Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-4
Cardiograph Shipping Container Weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-5
Cardiograph Cart Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-5
Cardiograph Cart Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-5
Cardiograph Cart Shipping Container Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-5
Cardiograph Cart Container Weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-5
Safety and Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-5
Electromagnetic Compatibility (EMC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-5
Reducing Electromagnetic Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-6
iv PageWriter Trim Cardiograph Service Manual
Table of Contents
Appendix B. Maintenance Tests
Maintenance Tests (Trim II/III/Rx only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Patient Interface Module (PIM) Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-2
Barcode Reader Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Magnetic Card Reader Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-3
Printer Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Network Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-5
PageWriter Trim Cardiograph Service Manual v
Table of Contents
vi PageWriter Trim Cardiograph Service Manual
1
Chapter 1Introduction
This Service Manual provides the information you need to successfully service the PageWriter
Trim cardiographs and cart system. PageWriter Trim includes the following four models.
PageWriter Trim model Philips Part Number
PageWriter Trim III
860286
PageWriter Trim II 860288
PageWriter Trim I
PageWriter Trim Rx
860290
860287
This manual includes information on:
Theory of operation
Maintenance procedures
Performance verification and safety testing
Repairs
Ordering parts and supplies
Specifications
Maintenance tests
Before servicing the PageWriter Trim cardiographs, review the PageWriter Trim Instructions
for Use and PageWriter Trim Cardiograph Getting Started Guide shipped with the product.
This manual assumes you are familiar with the controls, basic cardiograph operations, and
capabilities of the device as described in these documents.
This chapter provides general technical information that you should know before servicing the
PageWriter Trim cardiographs. It is organized into the following sections:
Who Should Use this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Important Patient and Safety Information. . . . . . . . . . . . . . . . . . . . 1-3
Features and Capabilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Tour of the Device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
General Service Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Ordering Supplies, Options and Accessories . . . . . . . . . . . . . . . . 1-15
Contacting a Response Center. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
Other Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
1-1
Introduction Who Should Use this Manual
Who Should Use this Manual
This manual is for users who handle preventive maintenance, periodic operational checks, and
basic troubleshooting for PageWriter Trim cardiographs.
Before attempting to service the cardiographs, you must review the following documentation
and training materials:
PageWriter Trim Instructions for Use
PageWriter Trim Cardiograph Getting Started Guide
PageWriter Trim Cardiograph Interactive Training Program
This Service Manual
Conventions Used in this Guide
The documentation and training materials use the following typographic conventions.
Item How Displayed
Menu item
Button name
Menu items and button names appear in a bold font.
Example: Select
Config.
Keyboard keys Keyboa rd keys appear in italic font.
Example: Press Enter after typing the name.
WARNING Warning statements describe conditions or actions that may result in personal injury or
loss life.
CAUTION Caution statements describe conditions or actions that may result in damage to equipment or
software.
NOTE Notes provide additional important information about a topic.
TIP Tips provide suggestions for alternative ways of performing tasks.
1-2 PageWriter Trim Cardiograph Service Manual
Introduction Important Patient and Safety Information
Important Patient and Safety Information
The PageWriter Trim cardiograph isolates all connections to the patient from electrical ground
and all other conductive circuits in the cardiograph. This reduces the possibility of hazardous
currents passing from the cardiograph through the patient’s heart to ground .
WARNING Failure to follow these warnings could affect both patient and operator safety.
When operating the cardiograph on AC power, ensure that the cardiograph and all other
electrical equipment connected to or near the patient are effectively grounded.
Use only grounded power cords (three-wire power cords with grounded plugs) and
grounded electrical outlets. Never adapt a grounded plug to fit an ungrounded outlet by
removing the ground prong or ground clip. If an ungrounded plug adapter is requ ired , use
a ground strap to connect the equipotential port (rear of the cardiograph) to the power
source ground. Use the equipotential port when redundant earth ground is necessary
according to IEC 60601-1.
If a safe ground connection is not ensured, operate the cardiograph on battery power only.
The use of equipment that applies high frequency voltages to the patient (including
electrosurgical equipment and some respiration transducers) is not supported and may
produce undesired results.
WARNING Do not touch accessible connector pins and the patient simultaneously.
Electrical shock hazard. Keep cardiograph, Patient Interface Module (PIM) and all
cardiograph accessories away from liquids. Do not immerse cardiograph, PIM, or
other accessories in any liquids.
Periodically inspect the patient data cable, lead wires, and AC power cord for any worn or
cracked insulation.
Keep the patient data cable away from power cords and any other electrical equipment.
Failure to do so can result in AC power line frequency interference on the ECG trace.
The Philips Medical Systems patient data cable (supplied with the cardiograph) is an
integral part of the cardiograph safety features. Use of any other patient data cable may
compromise defibrillation protection and degrade cardiograph performance.
Only qualified personnel may service the cardiograph or may open the cardiograph
housing to access internal cardiograph components. Do not open any covers on the
cardiograph. All internal components must be serviced by qualified personnel.
Do not use this cardiograph near flammable anesthetics. It is not intended for use in
explosive environments or in operating rooms.
The use of the analog ECG output signal port (not supported on cardiograph) should not
be used when critical synchronization timing is required.
PageWriter Trim Cardiograph Service Manual 1-3
Introduction Important Patient and Safety Information
Do not touch the patient, patient data cable, or cardiograph during defibrillation. Death or
injury may occur from the electrical shock delivered by the defibrillator.
Ensure that the electrodes or lead wires do not come in contact with any other conductive
materials (including earth-grounded materials) especially when connecting or
disconnecting electrodes to or from a patient.
Connecting multiple cardiographs to the same patient may pose a safety hazard due to the
summation of leakage currents. Any combination of instruments should be evaluated by
local safety personnel before being put into service.
Do not pull on the paper while an ECG report is being printed. This can cause distortion of
the waveform and can lead to potential misdiagnosis.
Do not connect any equipment to the cardiograph RS-232 port that does not meet medical
safety requirements and that has not been evaluated by local safety personnel.
Equipment connected to the cardiograph RS-232 port can cause ground leakage currents
exceeding the maximum specified in IEC 60601-1 safety standards.
Do not connect any equipment to the cardiograph RS-232 port if a patient is connected to
the cardiograph.
Only use the Philips Medical Systems AC power cord supplied with the cardiograph.
Periodically inspect the AC power cord and AC power connector to ensure that both are in
a safe and operable condition. If the AC power cord or AC power connector is not in a safe
or operable condition, operate the cardiograph on battery power and contact Philips
Medical Systems for service.
The cardiograph has been safety tested with the recommended accessories, peripherals,
and leads, and no hazard was found when the cardiograph is operated with cardiac
pacemakers or other stimulators.
Do not connect any equipment or accessories to the cardiograph that are not approved by
Philips Medical Systems or that are not IEC 60601-1 approved. The operation or use of
non-approved equipment or accessories with the cardiograph is not tested or supported,
and cardiograph operation and safety are not guaranteed.
WARNING When using additional peripheral equipment powered from an electrical source
other than the cardiograph, the combination is considered to be a medical system. It
is the responsibility of the operator to comply with IEC 60601-1-1 and test the
medical system according to the requirements. For additional information contact
Philips Medical Systems.
Do not use non-medical peripherals within 6 feet of a patient unless the non-medical
peripherals receive power from the cardiograph or from an isolation transformer
that meets medical safety standards.
Only install Philips Medical Systems software on the cardiograph. The installation or use
of software not approved by Philips Medical Systems is strictly prohibited and
cardiograph safety and performance are not guaranteed.
1-4 PageWriter Trim Cardiograph Service Manual
Introduction Features and Capabilities
Only use Philips Medical Systems replacement parts and supplies with the cardiograph.
The use of non-approved replacement parts and supplies with the cardiograph is strictly
prohibited. Cardiograph safety and performance are not guaranteed when non-approved
replacement parts and supplies are used with the cardiograph.
Manual measurements of ECG intervals and magnitudes should be performed on printed
ECG reports only. Do not make manual measurements of ECG intervals and magnitudes
on the touch screen display since these ECG representations are scaled.
Only use patient electrodes that are approved by Philips Medical Systems. The use of non-
approved patient electrodes may degrade cardiograph perfo rmance.
The Philips Medical Systems warranty is applicable only if you use Philips Medical
Systems approved accessories and replacement parts.
Features and Capabilities
The Philips PageWriter Trim cardiograph has four models: PageWriter Trim III, PageWriter
Trim II, PageWriter Trim Rx, and PageWriter Trim I. The PageWriter Trim family of
cardiographs are economical, interpretive, lightweight cardiographs with a remote digital
patient module. The cardiograph contains the controls, the printer, and all the processing
circuitry.
Features
The features of the PageWriter Trim cardiographs include:
Battery or AC operated
Remote digital acquisition module with replaceable patient leads. Capability for up to 12
leads
640 x 480 Color and Mono LCD for PageWriter Trim III/II/Rx, 40 x 2 Character LCD for
PageWriter Trim I
Data to ECG Management system in XML format via modem or LAN for PageWriter III/
II/Rx
Optional cart with convenient storage areas for supplies
Capabilities
Downloads patient data from HIS with a barcode, magnetic card swipe, or smart card
swipe
Stores ECGs via PC Card
Transmits ECGs by FAX, PCMCIA-modem, or LAN
PageWriter Trim Cardiograph Service Manual 1-5
Introduction Tour of PageWriter Trim Cardiographs
Tour of PageWriter Trim Cardiographs
This section gives an overview of the outside of the cardiographs, as well as the Patient
Interface Module (PIM). For additional details, see the PageWriter Trim Instructions for Use.
PageWriter Trim I Cardiograph
The following section shows front and rear views of the PageWriter Trim I cardiograph. For
additional details, see the PageWriter Trim Instructions for Use.
Figure 1-1 PageWriter Trim I Cardiograph and Cart (Front View)
A
G
H
B
C
D
E
F
A Patient Interface Module (PIM) E PIM Leads
B Printer paper/report storage slot F Wheel Brake
C S torage Shelf G Control Panel
D AC Power Cord H Printer Paper Drawer
1-6 PageWriter Trim Cardiograph Service Manual
Introduction Tour of PageWriter Trim Cardiographs
Figure 1-2 PageWriter Trim I Cardiograph (Rear View)
I
ML
J
KN
I AC Power Cord Connector L Battery Door
J Equipotential Post M PIM Connector
K Fuse Door N Serial Connector (not supported)
WARNING Do not connect a LAN cable connector to the PIM connector.
Do not plug a telephone connector into the PIM connector.
PageWriter Trim Cardiograph Service Manual 1-7
Introduction Tour of PageWriter Trim Cardiographs
PageWriter Trim II, III, and Rx Cardiograph
The following section shows front and rear views of the PageWriter Trim II, III and Rx
cardiographs. For additional details, see the PageWriter Trim Instructions for Use.
Figure 1-3 PageWriter Trim II, III, and Rx Cardiograph and Cart (Front View)
G
A
H
I
J
B
C
D
E
F
A Patient Interface Module (PIM) F Wheel Brake
B Printer paper/report storage slot G Control Panel
C Storage Shelf H Keyboard
D AC Power Cord I Trim Knob
E PIM Leads J Printer Paper Drawer
1-8 PageWriter Trim Cardiograph Service Manual
Introduction Tour of PageWriter Trim Cardiographs
Figure 1-4 PageWriter Trim II, III, and Rx Cardiograph (Rear View)
KL
T
S
R
Q
P
M
N
O
K PC Card Eject Button P Battery Door
L PC Card Slot Q PIM Connector
M AC Power Connector R SmartCard Reader (USB) Connector
N Equipotential Post S Barcode Reader or Magnetic Card Reader Connector
O Fuse Door T Serial Connector (not supported)
WARNING Do not connect the LAN cable connector into the PIM connector.
Do not plug a telephone connector into the PIM connector.
Patient Interface Module (PIM)
The Patient Interface Module (PIM) is a hand-held device that connects to the cardiograph.
The lead wires on the PIM attach to the electrodes placed on the patient. The exterior of the
PIM is labeled for quick and easy lead identification.
The PIM connects to the patient data cable and to the lead wires attached to the patient. See
Figure 1-5 on the following page.
For details about connecting the lead wires to the PIM, see the PageWriter Trim Instructions
for Use.
PageWriter Trim Cardiograph Service Manual 1-9
Introduction General Service Information
Figure 1-5 Patient Interface Module
A
B
CD
A Lead Wire Labeling C Limb Lead Wires
B Patient Data Cable D Precordial (chest) Lead Wires
General Service Information
Keep the following points in mind when servicing this product.
Installation
The PageWriter Trim does not require installation by Philips field personnel. The cardiograph
can be installed by the customer. The PageWriter Trim Instructions for Use describes the
proper setup and configuration of the cardiograph and cart system.
Upgrades
Upgrades are available to add specific functionality to the device after purchase. These
upgrades are:
989803129931 Add Bar Code Reader
989803129941 Add Magnetic Card Reader
1-10 PageWriter Trim Cardiograph Service Manual
Introduction General Service Information
989803129951 Add PCMCIA Network LAN card
989803129961 Add 'Smart' IC Card Reader
989803130061 PageWriter Trim Training CD
989803130081 PageWriter Trim Documentation CD
989803130091 Patient Module - AAMI
989803130101 Patient Module - IEC
989803130111 Cardiograph Cart - Basic
989803138021 Shielded LAN cable
Consult your sales representative, dealer, or distributor for the latest details.
Preventive Maintenance
The PageWriter Trim does not require scheduled preventive maintenance.
Preventive maintenance and periodic operational checks are intended to be performed by the
user. Both topics are covered in the Cardiograph Care and Maintenance chapter of the
PageWriter Trim Instructions for Use and this service manual. If further technical assistance is
required, contact the nearest Philips Response Center. See "Contacting a Philips Response
Center" on page 1-17.
Repair Philosophy
The repair philosophy of the PageWriter Trim Cardiograph is subassembly replacement.
Examples of subassemblies are the print-head assembly, LCD, the main Processor Circuit
Assembly (PCA), the power supply board, the power module, the printer drawer, etc.
Replaceable subassemblies are identified in Chapter 7, “Parts and Accessories”. Only Philips
authorized personnel can repair this product. Repairs by users that involve replacing
subassemblies and components are not supported.
PageWriter Trim Cardiograph Service Manual 1-11
Introduction Ordering Supplies, Options and Accessories
Ordering Supplies, Options and Accessories
These tables list the options and accessories available for the PageWriter Trim family of
cardiographs, as well as ordering information for the supplies and accessories.
Country/Region Options
Country and region options includes the appropriate keyboard, power cord, printer paper,
patient leads, and language. The following table shows the configuration for the country and
region.
Table 1-1 Country/Region Option Configuration
Option
Country/
Region
Labels &
User Doc.
AB0 Taiwan Traditional
Chinese
AB2 China Simplified
Chinese
AB4 Singapore
English English US
& Hong
Kong
AB9 Portugal Portu-
guese
ABA USA/
English English US
Canada
(English)
ABB European
English English US
English
ABC Canada
French French European AAMI 8120(French)
Interp.
Rpt
Keyboard
English US
English
Chinese US
English
English
Portu-
European IEC 8120-
guese
English
English
PIM/
Lead
Version
Power
Cord
Opt.
AAMI 8120-
5429
IEC 8120-
8376
AAMI 8120-
1351
1689
AAMI 8120-
5429
IEC 8120-
1689
5429
Default
Paper
A
A4
A4
A4
A
A4
A
ABD Germany German German European IEC 8120-
ABE Spain Spanish Spanish European IEC 8120-
ABF France French French French IEC 8120-
ABG Australia English English US
1-12 PageWriter Trim Cardiograph Service Manual
English
1689
1689
1689
AAMI 8120-
4475
A4
A4
A4
A4
Introduction Ordering Supplies, Options and Accessories
Table 1-1 Country/Region Option Configuration (continued)
ABH Nether-
lands
ABM Latin
American
ABU UK English English US
Dutch Dutch US
English
IEC 8120-
1689
Spanish Spanish European AAMI 8120-
5429
IEC
English
81201351
ABZ Italy Italian Italian European IEC 8120-
6978
AC4 Brazil Portu-
guese
Portuguese
European AAMI 8120-
5429
AC8 Argentina Spanish Spanish European AAMI 8120-
6869
ACJ India English English US
English
AKJ Israel &
Gaza
English English US
English
IEC 8120-
4211
IEC 8120-
5182
Strip
A4
A
A4
A4
A
A
A4
A4
AKV Chile &
others
Spanish Spanish European AAMI 8120-
6978
AR0 Japan Japanese Japanese Japanese IEC 8120-
4753
A
A4
PageWriter Trim Cardiograph Service Manual 1-13
Introduction Ordering Supplies, Options and Accessories
Table 1-2 Options
Option Description
A01 PageWriter Trim Cardiograph and Cart System
A02 PageWriter Trim Cardiograph only
C11 Lan Card
C12 Bar Code Reader
C13 Magnetic Card Reader
C14 ‘Smart’ IC card reader
C15 Modem Card - U.S. and Canada only
C20 Interpretation (For Trim I only)
C30 PCMCIA Card ECG storage
Table 1-3 Documentation Part Numbers
Part Number Description
Quick Reference Card
Getting Started Guide
Instructions for Use
M4992-91905
Learning Products Folder
Standard Accessories
The standard accessories are based on model number and country/region options. See
"Country/Region Options" on page 1-12. Accessories include:
100 sheets of z-fold paper
– English paper p/n M3707A
– Metric paper p/n M3708A
Tab electrodes p/n 13943D
Alligator clips
– 989803129231 (AAMI)
– 989803129241 (IEC)
Quick Reference Card
Getting Started Guide
PageWriter Trim Learning Products Folder
1-14 PageWriter Trim Cardiograph Service Manual
Introduction Ordering Supplies, Options and Accessories
Supplies and Ordering Information
The part numbers for all supplies for the PageWriter Trim cardiograph are listed in this
section.
NOTE This section describes supply part numbers only. For repair part numbers, see Chapter 7, “Parts and
Accessories”.
You can order all supplies on the World Wide Web at
http://shop.medical.philips.com
Use the part numbers listed in this section for reference to ensure that the correct supplies are
ordered.
Table 1-4 Complete Lead Sets
Part Number Description
989803129161 Complete Lead Set (AAMI)
989803129191 Complete Lead Set (IEC)
Table 1-5 Replacement Lead Sets and Accessories
Part Number Description
989803129141 Limb Lead Set, 99 cm/39 in (AAMI)
989803129151 Chest Lead Set, 61 cm/24 in (AAMI)
989803129171 Limb Lead Set, 99 cm/39 in (IEC)
989803129181 Chest Lead Set, 61 cm/24 in (IEC)
989803129201 Long Limb Lead Set, 137 cm/54 in (IEC)
989803129211 Long Chest Lead Set, 99 cm/39 in (IEC)
989803129221 Long Complete Lead Set (IEC)
989803129231 Alligator Clips for Disposable Tab Electrodes (AAMI)
989803129241 Alligator Clips for Disposable Tab Electrodes (IEC)
PageWriter Trim Cardiograph Service Manual 1-15
Introduction Ordering Supplies, Options and Accessories
Table 1-6 Electrodes
Part Number Description
13943B Disposable cardiography electrode, resting diagnostic ECG
M2253A Disposable electrode, adult, resting ECG (not available in
Japan)
M2254A Tab electrode adapter
40431B Alligator Clip Adapter for 1/8 post
40498E Snap Lead Electrode (IEC)
40475A Snap Lead Electrode Adapter
40490E 15mm Suction Electrode
40421A Push-in Connect Welsh Electrode
40494E Limb Clamp Electrode C400 (4 per box)
40491E Limb Plate Electrode C400 (4 per bag)
40424A Limb Plate Electrode (4 pack)
14030A Strap Electrode, 14 inch limb (4 per pack)
40420A Disposable electrode, diagnostic, pre-gelled
13944B Wet Gel Foal Electrode, resting ECG
Table 1-7 Printer Paper
Part Number Description
M3707A Thermal Paper (100 sheets), A size (8.5 x 11 in/21.6 x 28 cm)
M3708A Thermal Paper (100 sheets), A4 size (8.27 x 11.69 in/21 x 29.69
cm)
Table 1-8 Battery
Part Number Description
989803130151 Battery
1-16 PageWriter Trim Cardiograph Service Manual
Introduction Contacting a Philips Response Center
Contacting a Philips Response Center
The Philips Response Center can assist with product troubleshooting and provide technical
expertise to help with any issue with the PageWriter Trim cardiograph or any of its
accessories.
For more information on the Philips Response Center go to
www.medical.philips.com/main/services/response_center
North America Response Centers
Country Telephone Number
Canada (800) 323 2280
United States (800) 548-8833
Europe Response Centers
Country Telephone Number
United Kingdom 07 002 432 58 472 or
07 002 HEALTHRC
Austria 01 25125 333
Belgium 32 2 525 7102 (French)
32 2 525 7103 (Flemish)
Finland 010 855 2455
France 0803 35 34 33
Germany 01850 475000
Italy 0800 8256087
Netherlands 31 4 027 876 30
Spain 34 90 2 304 050
Sweden 08 5064 8830
Switzerland 0800 80 10 23
PageWriter Trim Cardiograph Service Manual 1-17
Introduction Other Resources
Asia Pacific Response Centers
Country Telephone Number
Australia 1800 251 400
China 800 810 0038
Hong Kong 852 2876 7578
Macau 0800 923
India
New Delhi
Mumbai
Calcutta
Chennai
Bangalore
Hyderabad
011 2695 9734
022 5691 2643/2431
2485 3718
044 555 01000
080 5091 911
040 5578 7974
Japan 0120 381 557
Korea
Seoul
080 372 7777 (toll free)
02 3445 9010
Singapore 1800 Philips
New Zealand 0800 251 400
Philippines 02 845 7875
Malaysia 1800 886 188
Thailand 02 614 3569
Indonesia 021 794 7542
Taiwan 0800 005 616
Other Resources
For additional information on the PageWriter Trim cardiograph, see:
PageWriter Trim Cardiograph Getting Started Guide
PageWriter Trim Instructions for Use
PageWriter Trim Cardiograph Interactive Training Program
1-18 PageWriter Trim Cardiograph Service Manual
2
Chapter 2Theory of Operation
This chapter provides functional descriptions of the components of the PageWriter Trim
Cardiograph. These descriptions are at the functional-block level. This chapter also provides a
system-level interconnection schematic, a data flow schematic, and a power-system block
diagram.
This chapter is organized into the following sections:
System Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Hardware Logical View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
High Level ECG Data Flow and Storage . . . . . . . . . . . . . . . . . . . . 2-4
Power System Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Power Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Except as noted, the information in this chapter applies to the PageWriter II/III/Rx and the
PageWriter I.
System Overview
The PageWriter Trim system performs acquisition, analysis, printing, storage, and transfer of
ECG waveforms and other patient clinical data.
The PageWriter Trim Consists of three major subsystems:
Main controller
An Intel StrongArm-base single-board computer (SBC) with extensive I/O facilities,
running Windows CE 4.1. The PageWriter Trim application software runs on the main
controller, which includes the display and user-input subsystems.
Print controller
A Motorola Coldfire-based control circuit, embedded in the main controller board that
provides all the real-time management of the printer. The print controller communicates
with the main controller through USB.
Patient Interface Module (PIM)
An Intel StrongArm-based controller running Windows CE 4.1, coupled with a signal
acquisition board employing Philips proprietary mixed-signal ASIC technology for ECG
acquisition. The PIM communicates with the main controller through USB.
2-1
Theory of Operation Hardware Logical View
Hardware Logical View
Control of the PageWriter Trim is provided by application software running on the main
control board, interacting with numerous hardware and software subsystems. The following
are high-level descriptions of these various subsystems.
Main Control Board
The main control SBC contains loader software and the Windows CE kernel image in its
internal flash memory (32 MB for PageWriter Trim II/III/Rx, 16MB for PageWriter Trim I).
At system boot, a system RAM test is performed by the loader (onboard RAM is 64MB), and
then the Windows CE kernel loads. When Win CE loads, the application launcher runs,
verifying system and executable images before loading the Ruby application. For PageWriter
Trim II/III/Rx, all interaction with the operator is through the Ruby300_APP application. For
PageWriter Trim I, all interaction with the operator is through the Ruby100_APP application.
The application software is stored in internal Flash memory. For PageWriter Trim II/III/Rx,
ECG archives are stored on a separate 128MB CompactFlash (CF) card installed in the main
control board.
The following shows devices and interfaces provided by the main control board.
Figure 2-1 Devices and Interfaces for Main Control Board
2-2 PageWriter Trim Cardiograph Service Manual
Hardware Logical View Theory of Operation
The board presents a backplane through the back of the PageWriter Trim case, allowing the
user to access interfaces labeled as external above, along with the PCMCIA slot, and the PS/2
connection for a barcode reader device.
Display
The PageWriter Trim II/III/Rx display is 640 x 480 pixels, up to 64 color TFT LCD with
backlight. All display functions are handled by the main control board using the S1D13506
(EPSON) graphics accelerator chip.
The PageWriter Trim I display is a 40 x 2 Line Character LCD with cursor. Its function is
driven directly by SA1110.
Patient Interface Module (PIM)
The PIM is a SA1110-based WinCE subsystem, which is connected by USB to the main
control board. It provides real-time data acquisition of ECG signal from an electrode
connected patient.
Printer Control (USB)
All data printing is handled by the Main Board. The printer control is a Motorola Coldfire
processor-based control circuit. It provides ECG waveform rendering and basic bitmap
imaging operations, and uses a PCL-like control language API for page description and feed
control.
Battery (Lead-Acid)
The battery is a lead-acid 12 volt unit, providing 2.9 Amp-Hours of current when fully
charged.
Keyboard/Trim Knob (PS/2)
The PageWriter Trim II/III/Rx cardiograph includes a laptop-format, PS/2, sealed, full key
action keyboard, a Trim Knob as a pointing device for easy navigation, and six dedicated keys.
It includes a keyboard matrix, Trim Knob decoder, and daughter board, which provides
language-specific keyboard support and decoding via PS/2 and standard WinCE device
drivers for key and Trim Knob input into PageWriter Trim. Powered by PS/2 connection.
The PageWriter Trim I cardiograph includes six dedicated keys and a Trim Knob. The
dedicated keys and the Trim Knob interface to the Main Board via the PS/2 port.
PageWriter Trim Cardiograph Service Manual 2-3
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