Directed Audio 6550 Service Manual

Novametrix Medical Systems Inc. Wallingford, Connecticut, U.S.A. 06492.Copyright 1995. All rights reserved. No part of this manual may be reproducedw

x Model 515B/C Service Manual Rev. 01

Rev. 01 Model 515B/C Service Manual11DescriptionThis manual is written for personnel who service and/or maintain the Novametrix Model 515Bor 515C Puls

1 DescriptionTrademark Acknowledgments2Model 515B/C Service Manual Rev. 01[This page intentionally blank.]

Rev. 01 Model 515B/C Service Manual32Patient SafetyPulse oximetry is a non-invasive method of monitoring the oxygen saturation of arterial blood.Pulse

2 Patient SafetyWarnings4Model 515B/C Service Manual Rev. 012.2Warnings• Explosion Hazard: Do NOT use the Model 515B/C in the presence of flammable an

CautionsPatient Safety2Rev. 01 Model 515B/C Service Manual52.3Cautions • Do not operate the Model 515B/C when it is wet due to spills or condensation.

2 Patient SafetyCautions6Model 515B/C Service Manual Rev. 01[This page intentionally blank.]

Rev. 01 Model 515B/C Service Manual73Front and Rear Panel IllustrationsPOWER button - Press to turn the monitoron or off.AC indicator - Green when the

3 Front and Rear Panel Illustrations8Model 515B/C Service Manual Rev. 01Ground stud - Use to connect monitor’s chassis to earthground.Rear panel power

Rev. 01 Model 515B/C Service Manual94Summary of OperationThis section gives a brief description of the operation of the Model 515B/C monitor. For more

4 Summary of OperationAdjusting Volume Levels10Model 515B/C Service Manual Rev. 01To activate auto alert limits press and hold either the key for sa

Rev. 01 Model 515B/C Service Manual115Electronic Theory of OperationThe electronic theory of operation of the Model 515B/C Pulse Oximeter is detailed

5 Electronic Theory of OperationMain Board12Model 515B/C Service Manual Rev. 01Q1 is biased off by R1, R2, and D3. This prevents the battery from tryi

Main BoardElectronic Theory of Operation5Rev. 01 Model 515B/C Service Manual13IC4 pin 5 low, biasing Q2 on (page 4 on schematic). With Q2 on, Q8 and Q

5 Electronic Theory of OperationMain Board14Model 515B/C Service Manual Rev. 01(no connection between IC28c pins10 and 11) except as noted above for t

Main BoardElectronic Theory of Operation5Rev. 01 Model 515B/C Service Manual15The CS5503 converter continuously samples its input, converts the value

5 Electronic Theory of OperationMain Board16Model 515B/C Service Manual Rev. 01signals control the sensor LED drive and the photodiode’s return path c

Main BoardElectronic Theory of Operation5Rev. 01 Model 515B/C Service Manual17BATLEV1: Battery Level 1The monitor’s battery voltage is divided down by

5 Electronic Theory of OperationMain Board18Model 515B/C Service Manual Rev. 01After all three ADCs have been read, the CPU sets the AA1 and AA0 decod

Main BoardElectronic Theory of Operation5Rev. 01 Model 515B/C Service Manual195.2.13 Microprocessor SupervisorA microprocessor supervisory integrated

Rev. 01 Model 515B/C Service ManualiiiRRevision History19-May-95 Release at revision 00.15-Nov-95 Updated, revision 01.

5 Electronic Theory of OperationMain Board20Model 515B/C Service Manual Rev. 015.2.15 DisplaysThe front panel visual interface is made up of LEDs, the

Main BoardElectronic Theory of Operation5Rev. 01 Model 515B/C Service Manual215.2.17 Keypanel and Configuration HeaderThe processor continually scans

5 Electronic Theory of OperationMain Board22Model 515B/C Service Manual Rev. 01[This page intentionally blank.]

Rev. 01 Model 515B/C Service Manual236MaintenanceThis section contains maintenance information for the Model 515B/C monitor and accessories.6.1Cleanin

6 MaintenanceBattery Maintenance24Model 515B/C Service Manual Rev. 016.2Battery MaintenanceIf the monitor has not been used or powered by AC mains for

Replacing AC Mains FusesMaintenance6Rev. 01 Model 515B/C Service Manual256.3.1 Assemblies with the earlier Power Entry Modules1. Turn off the monitor.

6 MaintenanceChanging AC Mains Voltage26Model 515B/C Service Manual Rev. 014. Pry the fuse housing out from the power entry module.5. Replace the blow

Changing AC Mains VoltageMaintenance6Rev. 01 Model 515B/C Service Manual273. Using needle-nosed pliers, pull the voltage selector drum from the power

6 MaintenanceChanging AC Mains Voltage28Model 515B/C Service Manual Rev. 013. Using a flat blade screwdriver, pry the fuse access door open to expose

Assembly ExchangesMaintenance6Rev. 01 Model 515B/C Service Manual296.5Assembly ExchangesDisassembly should be performed by qualified service personnel

iv Model 515B/C Service Manual Rev. 01[This page intentionally blank.]

6 MaintenanceChanging System Software30Model 515B/C Service Manual Rev. 012. Disconnect the keypanel from the main board, set aside in a safe place.3.

Rev. 01 Model 515B/C Service Manual317TroubleshootingCertain conditions may evoke special messages in the saturation and pulse rate displays. Thesedis

7 Troubleshooting32Model 515B/C Service Manual Rev. 01Light interference. Ambient light source (sunlight, warming lights, etc.) are interfering with s

Rev. 01 Model 515B/C Service Manual338Functional TestThe functional tests verify the overall functional integrity of the monitor and sensor. If themon

8 Functional TestFunctional Test34Model 515B/C Service Manual Rev. 018.2Functional Test1. With the unit off, plug the line cord to the rear panel powe

Functional TestFunctional Test8Rev. 01 Model 515B/C Service Manual357. Apply the sensor:Finger sensor:Y-S ens or :8. Check for reasonable SpO2 and pul

8 Functional TestFunctional Test36Model 515B/C Service Manual Rev. 0112. Press and hold for three seconds, verify that the monitor beeps twice, then

Rev. 01 Model 515B/C Service Manual379Electronic TestsThe electronic tests verify the operation of the electronic circuits within the Model 515B/C.The

9 Electronic TestsAssembly Tests38Model 515B/C Service Manual Rev. 013. Connect the line cord to the power entry module (power supply/rear panel assem

Assembly TestsElectronic Tests9Rev. 01 Model 515B/C Service Manual393. Press to turn the monitor on.4. Monitor pin 6 of IC19, check for sync pulses.

Rev. 01 Model 515B/C Service ManualvGGuaranteeEquipment manufactured or distributed by Novametrix Medical Systems Inc., is fullyguaranteed, covering

9 Electronic TestsAccuracy Test40Model 515B/C Service Manual Rev. 0114. Set the SIG ATTEN to 1, verify that finger sensor icon and the alert bar flash

Accuracy TestElectronic Tests9Rev. 01 Model 515B/C Service Manual41Verify all the LEDs and segments briefly illuminate.The software revision level wil

9 Electronic TestsAccuracy Test42Model 515B/C Service Manual Rev. 01[This page intentionally blank.]

Rev. 01 Model 515B/C Service Manual4310SpecificationsBelow are specifications for the Novametrix Model 515B/C Pulse Oximeter. Thesespecifications are

10 SpecificationsGeneral Specifications44Model 515B/C Service Manual Rev. 01• Messages: Sensor disconnected, sensor off patient, low signal, insuffici

Rev. 01 Model 515B/C Service Manual4511AccesoriesModel 515B/C PULSE OXIMETER Catalog No.Description6500-00 Model 515B Pulse Oximeter6550-00 Model 515C

11 Accesories46Model 515B/C Service Manual Rev. 018793-24 Y-24 Plan: The plan warranty is 24 months.Includes 6 boxes of any Y-Strip Taping Systems8793

Accesories11Rev. 01 Model 515B/C Service Manual47MISCELLANEOUS7106-10 Transport Pouch (for monitor)7104-10 Side Accessory Pouch6318-00 Kickstand Kit f

11 Accesories48Model 515B/C Service Manual Rev. 01[This page intentionally blank.]

Rev. 01 Model 515B/C Service Manual4912Parts ListsCommon Replacement Parts List12.1Model 515C6550-00 Model 515C Pulse Oximeter w/Graphics DisplayThis

vi Model 515B/C Service Manual Rev. 01Service PolicyNovametrix Medical Systems Inc. will provide Warranty Service Support to its customerswithin 48 ho

12 Parts ListsModel 515C50Model 515B/C Service Manual Rev. 016550-01-00 Main AssyThis list applies to the units with the 6376-01 rear panel assembly (

Model 515CParts Lists12Rev. 01 Model 515B/C Service Manual51 152066 1 CAPACITOR, 220UF, 63V, RADIAL, ELECTROLYTIC 152070 1 CAPACITOR, 1000UF, 10V,

12 Parts ListsModel 515C52Model 515B/C Service Manual Rev. 01 474182 1 RESISTOR, 150K OHM, 1/8W, 1%, SURFACE MOUNT 474185 1 RESISTOR, 150 OHM, 1/8W

Model 515BParts Lists12Rev. 01 Model 515B/C Service Manual532724-01 01 Main Board Assy12.2Model 515B6500-00-00 Model 515B Pulse OximeterThis list appl

12 Parts ListsModel 515B54Model 515B/C Service Manual Rev. 016500-01-00 Main AssyThis list applies to the units with the 6376-01 rear panel assembly (

Model 515BParts Lists12Rev. 01 Model 515B/C Service Manual55153058 1CAPACITOR, 4700PF, 50V, 10%, X7R, CERAMIC, S 154062 3CAPACITOR,.01UF, 50V, 10%, X7

12 Parts ListsModel 515B56Model 515B/C Service Manual Rev. 01474211 1RESISTOR, 49.9K OHM, 1/8W, 1%, 1206 STYLE, S 475045 1E2 POTENTIOMETER, 10K OHM, 2

Model 515BParts Lists12Rev. 01 Model 515B/C Service Manual572723-01 01 Main Board Assy 2723-17 01 Main Board Subassy LINE PART NO REV QPA DESCRI

12 Parts ListsModel 515B58Model 515B/C Service Manual Rev. 01 474138 14 RESISTOR, 100 OHM, 1/8W, 1%, SURFACE MOUNT 474144 5 RESISTOR, 20.5K OHM, 1/

Common Assemblies to both Models 515B & 515CParts Lists12Rev. 01 Model 515B/C Service Manual5912.3Common Assemblies to both Models 515B & 515C

Rev. 01 Model 515B/C Service ManualviiCContents1 Description ...

12 Parts ListsCommon Assemblies to both Models 515B & 515C60Model 515B/C Service Manual Rev. 016382-01-00 Power Harness Assy6407-01-00 Top Cover A

Common Assemblies to both Models 515B & 515CParts Lists12Rev. 01 Model 515B/C Service Manual612725-01 00 Power Supply Board Assy 2725-17 00 Power

12 Parts ListsCommon Assemblies to both Models 515B & 515C62Model 515B/C Service Manual Rev. 016487-01 00 Rear Panel Assy 6487-17 00 Rear Panel S

Rev. 01 Model 515B/C Service Manual6313Schematics and Assembly Drawings6500-00 Final Assy, Model 515B6500-09 Overall Wiring Diagram, Model 515B6500-01

13 Schematics and Assembly Drawings64Model 515B/C Service Manual Rev. 01[This page intentionally blank.]

viii Model 515B/C Service Manual Rev. 016 Maintenance .......

Rev. 01 Model 515B/C Service Manualix12.2 Model 515B ........................531