MADSEN AccuScreen Sevice Manual Sept 2002

TABLE OF CONTENTS 1. WHEN IS SERVICE NECESSARY ? ...3 2. WHO CAN CARRY OUT WHAT SERVICE ? ...3 3. SHIPPING AND TEST PROCEDURES ...4 4 SOFTWARE TOOLS FOR SERVICE ...5 4.1 PC software ...5 4.2 device software ...5 5 TESTING PROCEDURES...6 5.1 Device check procedure after SW configuration ...6 5.2 Annual test...6 5.3 Calibration and Final test ...6 5.4 Probe calibration (PRE) / Check Probe calibration ...6 5.5 ABR trunk cable test ...6 6. FINAL ASSEMBLY ...7 7. TROUBLESHOOTING ...8 7.1 Error codes ...8 7.2 Systematic troubleshooting...10 7.2.1 Device ...11 7.2.2 Probe...12 7.2.3 Optional configuration ...13 8. SUPPLIES...14 8.1 Accessory ...14 8.2 Spare parts ...15 8.3 Test equipment ...15 9. MAINTENANCE...16 9.1 Probe ...16 9.1.1 Cleaning and maintenance of the probe tip...16 9.1.2 Changing the acoustic filter disc...17 9.1.3 Cleaning the attachable colored ear tips ...17 9.2 Cleaning the Accu Screen ...18 10. LABELS AND OPENING THE DEVICE ...19 11. APPENDIX ...20

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1. WHEN IS SERVICE NECESSARY ? •

According to the ‘SW/HW Information’ menu on the AccuScreen device the ‘annual test’ service is necessary.

•

after each repair or opening of the device Æ final test

•

if problems appear during proper use, as well as if the measurement procedure or the results are faulty

2. WHO CAN CARRY OUT WHAT SERVICE ? User: - short functional tests (Self tests) - cleaning of device and accessories - troubleshooting according to the „troubleshooting guide“ For additional repair actions, services and maintenance refer to your distributor

Service-centres that have been authorized by the manufacturer: - extensive functional tests - repair of device and accessories - software upgrades - service including calibration and final testing Manufacturer - extensive repair including exchange of essential parts and components - probe calibration - software upgrades - service including calibration and final testing Please notice: Repairs and service including calibration of the AccuScreen may be carried out only by the manufacturer or by services that have been authorised by the manufacturer. In case of repair actions by anyone else, the manufacturer reserves the right to refuse any liability for the operational safety, the reliability or the efficiency of the device

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3. SHIPPING AND TEST PROCEDURES production AccuScreen device

'ES-Tool' 'IRDA Test'

production Probe

'final test'

Probe calibration

final assembly

S H I P P I N G fz 'up1.exe' 'ES-Tool'

software upload

Internet & 'license1.exe'

licencing

'set_cal.exe'

'device check after SW configuration /firmware update'

final assembly madsen

S H I P P I N G madsen ANNUAL

SERVICE

'annual test' includes firmware upgrade test

'Release Manager'

'set_cal.exe'

'probe test'

REPA IR

open device / change hardware unit

low level repair (e.g. change battery)

probe failure

replace probe

'Release Manager-Tool'

'IRDA Test' 'set_cal.exe'

software upgrade

'Release Manager-Tool'

software upgrade

'final test'

'device check after SW configuration /firmware update'

'probe test'

'probe test'

'Release Manager-Tool'

testing the probe calibration

software upgrade

'device check after SW configuration /firmware update'

.

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4 SOFTWARE TOOLS FOR SERVICE 4.1 PC software up1.exe

DOS tool for software upload

set_code1.exe

DOS tool to send the license code to the device to unlock the software

set_cal.exe

DOS tool to set a new calibration date on the device

ES-Tool

Software to configure some settings like sound, backlight…

Release Manager

Tool which updates the newest software release automatically

IRDA Test

Tool to test the IRDA link between device and PC

A more detailed description of this configuration tools you find in appendix H.

4.2 device software Service Menu

Main Menu -> Options -> Self test (press and keep down button pressed and press right button) -> Service Menu Mic cal

Microphone calibration resp. test

Spk1 1000Hz

Speaker 1 calibration resp. test

Spk2 1000Hz

Speaker 2 calibration resp. test

Show test counters measurement counter reading

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5 TESTING PROCEDURES 5.1 Device check procedure after SW configuration The test procedure after software configuration is needed after every software upgrade. You find the whole specification for the software check in appendix A.

5.2 Annual test The annual test is necessary for service issue. The final test includes the device check after software configuration. In appendix B you see the specification for the test.

5.3 Calibration and Final test The final test is necessary after repairing by opening the device. The final test includes the annual test and the check after software upgrade. The final test consists:

final test instruction final test flowchart final test protocol

You find the whole documents in the appendix C.

5.4 Probe calibration (PRE) / Check Probe calibration This procedure is for probe calibration resp. check probe calibration. This procedure can be done with an AccuScreen device or OAE-ABR Simulator You find the whole guideline in appendix D.

5.5 ABR trunk cable test This procedure is for testing the ABR trunk cable. You find the whole guideline in appendix E.

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NOTE: The clock battery of the device must be replaced every three years to make sure that the date and time functions work properly. In order to change the battery you need a soldering gun and you have to open the device therefore a ‘final test’ is necessary after replacing the battery. The work instruction for changing the battery is in appendix I.

6. FINAL ASSEMBLY Check the manufacturing and serial number sticker. Check the corresponding case equipment. Final visual check of device, probes and accessories.

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7. TROUBLESHOOTING 7.1 Error codes Error Message Probe Error!

Cause Probe error - probe not connected? - probe occluded?

Stopped Cal FAIL

Solution Remove the probe Check whether the probe is connected. Clean probe if occluded.

Measurement aborted

Repeat measurement on the same ear Stimulus level calibration Assure stable probe placefailed ment; avoid noise

Testing not possible!

Impedance of electrodes or Check electrodes and balance is to high renew them if necessary. EEG values are constantly Repeat measurement if the high baby is quiet.

Testing not possible! Please disconnect the label printer! No printer connected

There is no measuring Disconnect the label printer possible while the printer from the device. is connected to the device. - Printer is not connected - Connect the printer with with the device the device. - Printer is turned off. - Turn printer on.

Printer error

-

Paper jam Out of labels

Labels not adjusted No labels in printer

Change Battery

Battery empty < 5.5 Volt

Check manual of label printer correctly Adjust labels correctly

Battery charge low <5.8 Volt

clock bat low

clock battery discharged

Codec failure Codec is defect Please note that after “Codec failure” was displayed the device will be automatically turned off.

Refill labels Replace the battery before continuing with the measurement Replace the battery before continuing with the measurement Contact your service department (battery lifetime > 2 years Please contact service department.

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Error Message LCD test failed

Cause

LED blinks, number code is Internal error code showed in upper left corner System Error System malfunction The calibration date has expired. Please have the device calibrated soon.

Solution Please contact service department Please note code and contact service department Contact your service department Please contact service department.

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7.2 Systematic troubleshooting For troubleshooting use the given flowcharts: On the left you see the steps you should follow. Beside is described how to do the steps. And on the right side you see the procedure to handle the problems.

How to work with the flowcharts: •

Follow the steps if you find no failure go to the next step.

•

If you find a failure try to repair it with the given hints on the right side. o If the trouble shooting hints force you to open the device to replace e. g. the processor board follow first all steps of the flowchart to ensure that you replace the right unit. o If you can’t repair the device with the given hints go to the next step (if possible) maybe the failure can be solved in a following step!

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7.2.1 Device steps

procedure

external demage check

- sockets - display - housing

probe test

power up device

check ifLED flash short red and green

notice error messages

do the selftests

troubleshooting

- goto probe test flowchart

- insert charged battery - check battery contact - check fuse - replace keyboard - replace processor board

- OK - button

- directly after switch on - change flash-eprom (boot program on flash-eprom is out of order) - observe LCD display e.g. Clock batt low !!!

- Menu (Options -> Selftest)

LCD -test

keyboard - test

- check connection LCD display - check soldering points on LCD - replace LCD panel - replace processor board

- check plug-and-socket connection - replace keyboard - replace processor board

codec - test

- replace processor board

probe - test (witch LDA)

- check plug- and-socket connection (cable, soldering points) - replace analog board (use LDA (Loopback diagnostic adapter))

open device

- remove battery - remove screws (6 pices)

visual check

- check plug- and-socket connection - check soldering points - check for short-circuits and loose connections .

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7.2.2 Probe steps

optical check

procedure

troubleshooting

- check for loose or damaged cable - check probe housing - check filter disk & probe tip

OK

probe - test

probe - info

probe - test

check probe calibration

Spk1 1000Hz test

- use a proper working Accu-Screen or OAE-ABR Simulator - Menu (Options -> Selftest) - probe in test cavity

- connect LDA to Ear probe connector - does AccuScreen identify LDA? yes: no: - eprom defect - device failure - replace probe -> device flowchart

- display the probe data

probe OK

ok

- The following tests are in the 'Service menu' ('Self test' menu [press down-button keep button pressed and press additional right-button] -> Service menu) - cp. 'Testing the calibration of PRE probes'

79 +-3dB

- speaker defect resp. recalibration - replace probe

fail

ok

Spk2 1000Hz test

79 +-3dB

Spks out of phase test

<70dB

- speaker defect resp. recalibration - replace probe

Spk polarity test (OAE-ABR Simulator)

(Akku Screen)

~79dB

- speakers out of phase (wrong polarity) - replace probe

.

.

Mic cal test

94 +-2dB

- microphone defect resp. recalibration - replace probe

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7.2.3 Optional configuration steps

procedure

troubleshooting

IRDA

- scratched IR window on top screen?

- replace analog board

- data exchange with working IRDA PC - make sure that PC IRDA adapter is working

- check internal IR wiring - replace analog board

- test printer with PC or working AccuScreen - notice printer manual

- buy a new printer

- e. g. data exchange with EchoLink

- replace processor board

- data exchange printer - AccuScreen with a spare printer cable

- replace printer cable

visual check

test link

printer

test printer

test serial port

test printer cable

.

ABR trunk cable

leakage resistance test

-connect the cable with the 'ABR trunc cable test adapter' -follow the ABR trunk cable test document (appendix)

- replace ABR trunk cable

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8. SUPPLIES 8.1 Accessory Part No. Units Accessory box 1389 1069 1040 1/5 1339 50 / 200 1340 50 / 200 1341 50 / 200 1342 50 / 200 1343 50 / 200 1344 50 / 200 1345 50 / 200 1346 50 / 200 1347 50 / 200 1368 50 / 200 1369 50 / 200 1414 Case 1415 1/5 1387 1388 1372 1112 1089 1113 1114 1115 1117 1116

Reference Description

blue red brown green iceblue transparent white blue red redbrown green yellow

Accessory box AS complete Accessory box Cleaning wire Ear tip DP 4mm Ear tip DP 4.5mm Ear tip DP 5.0mm Ear tip DP 5.5mm Ear tip DP 6.0mm Ear tip DP 7.0mm Ear tip DP 8.0mm Ear tip DP 9.0mm Ear tip DP 10.mm Ear tip DP mushroom Ear tip DP tree AS Accessory box label Case green "AS" + Inlay T Mad Case green "AS" printed Inlay T Madsen Test cavity DP Charger FW 7206/09 Akku T Main adapter f. char. Euro Main adapter f. char. USA/Japan Main adapter f. char. Australia Main adapter f. char. WW Main adapter f. char. UK

Cables 1307 1367 1370 1371 1326 1/5 1425

Transfer cable PC serial Label printer cable ABR trunk cable Electrode cable set IR - adapter USB/Serial converter

Probe 1402 1401 1361 1362 1353

Probe DP Probe TE Probe tip TEOAE+DPOAE Probe tip TEOAE Acoustic filter DP

1/5 1/5 1/5

blue green yellow

Design

Different accessories 1384 1405 1420 1440 400

Label printer Label for Label printer AccuLink SW Electrodes

Manuals 1421 1422 1423 1424

User Manual Basic User Manual PRO Quick guide Basic Quick guide PRO

Manufacturer

GN part number

1-08-038 8-68-31200 8-68-31201 8-68-31202 8-68-31203 8-68-31204 8-68-31205 8-68-31206 8-68-31207 8-68-31208 8-68-31209 8-68-31210

4.0mm 4,5mm 5,0mm 5,5mm 6,0mm 7,0mm 8,0mm 9,0mm 10,0mm

Ni MH 6V/1500 mAh

on request

1-21-62600 1-21-62700 8-68-31300

Dymo LabelWriter 330 T 54x101mm 220 pc

Dymo Dymo

3/pkg

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8.2 Spare parts Part No. Qty Reference Description 1392 1393 1184 1272 1437 1310 1296 1297 1410 1273 1274 1394 1413 1276

1 1 1 1 1 6 1 1 1 1 1 1 1 1

Housing upper part AS Display window printed AS LCD - graphic display LCD connection cable LCD display with cable Screws for housing Keyboard 5 keys assembled Keyboard cover 5 keys Front label AS 5 keys Keyboard 17 keys assembled Keyboard cover 17 keys Front label AS 17 keys manufacturing label serial number label

1289 1182 1309 1311

1 1 10 1

shaft cover housing base part rounded head screws for pcb’s foam self-adhesive

1429 1328 1329 1330 1331

1 1 1 1 1

foam ES Analog B. TD ES Analog B. TDA ES Analog B. TD Plus ES Analog B. TDA Plus

1255 1436 1439 1278

1 1 G1 1 1 IC3

ES Proc. B. T past equipped Clock battery piezo buzzer Flash EPROM

Design

Manufacturer

PG-12864 LRU-FTA-H

Rose / Haas Rose / Haas Powertip

Rose Haas Rose Haas

Taguan 230 / RAL 7035

Rose

30 x 9 x 6mm 55 x 30 x 10mm

PLCC 32 S

8.3 Test equipment Part No. Qty Description

Design

Manufacturer

1459 1460

1 OAE-ABR Simulator 1 Battery symbol threshold adapter

fz fz

1461 1462 1463 1464

1 1 1 1

fz fz fz fz

1465 1466 1467

1 coupler IEC711 1 sound level meter 1 sound level calibrator

Adapter for IEC711 coupler (probe PRE) Adapter for sound level meter calibrator (probe PRE) LDA (loopback diagnostic adapter) ABR trunk cable test adapter

model:SIP95S calss:1 model: 513A

ACLAN Cirrus Research

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9. MAINTENANCE 9.1 Probe 9.1.1 Cleaning and maintenance of the probe tip It is necessary to clean the probe frequently, especially since even small amounts of cerumen can occlude one of the three channels of the probe.

Note B

A

B C A

Remove the probe tip (B) by pressing the button (A) while shoving the probe tip carefully upwards out of the probe case.

D By means of the cleaning wire (C) you remove the acoustic filter disc (D) from the probe tip. C

Use the cleaning wire (C) to clean the sound channels of the probe from the rear.

The probe tip can be cleaned with a disinfectant or alcohol (70%). Ensure the sound channels are completely dry before replacing the tip onto the body of the probe. Even the tiniest amount of moisture may dissolve any residual cerumen and thus contaminate the sensitive micro filter (black) in the body of the probe.

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NOTE

The probe body contains sensitive components. Never attempt to clean the sound apertures in the probe housing mechanically or with liquids. Doing so may cause damage to the probe. Please contact your authorized service department for a periodical cleaning of the probe body.

9.1.2 Changing the acoustic filter disc

Note

If the calibration procedure fails and the message “Probe Error!” is displayed, the micro filter of the probe may be damaged or obstructed. In such a case, the filter disc needs to be changed. Therefore remove the probe tip (please see chapter 8.1.1) and by means of the cleaning wire (C) you take out the acoustic filter disc from the probe tip and insert a new disc. Test proper probe functions ‘Self test’ -> ‘Probe test’

9.1.3 Cleaning the attachable colored ear tips

Note

An ultrasonic bath is recommended for cleaning the silicone ear tips. Sterilization in alcohol or a disinfectant is also possible, as is the use of steam sterilizers up to a temperature of 150° C. Avoid exposing the ear tips to intense sun light or UV light. Disposable articles (like ear tips or cleaning pins) should be disposed according to local regulations.

The datasheet of the probe is in appendix F.

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9.2 Cleaning the Accu Screen

•

Before cleaning, the Accu-Screen must be turned off and separated from any current from an external source (e.g. PC). Prior to the actual cleaning, separate the probe and the data transfer plug from the device.

•

Use only warm water and a mild detergent (do not use alcohol or disinfectants.)

•

Clean the surface with a damp cloth.

•

Always ensure that no moisture gets inside the probe or into the device).

•

Never immerse the Accu-Screen into water or other cleaning solution.

Note

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10. LABELS AND OPENING THE DEVICE

To open the device unscrew the 6 screws (*), after repair screw up the device and put on one screw sealing wax (cp. picture).

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11. APPENDIX A. Device check procedure after SW configuration / firmware update B. Annual test C. Final test D. Testing the calibration of PRE probes E. ABR trunk cable test F. Probe datasheet (probe handling and cleaning) G. Software upload & configuration (licencing) procedure H. AccuScreen configuration tools I. Change battery (work instruction) J. OAE-ABR Simulator instruction manual K. Schematics

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