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GSi TYMPSTAR 1, Руководство по обслуживанию

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Calibration 

Adjust the target SPL requirement for each frequency by pressing the TARG SPL 
up/down softkeys. The level can be adjusted up or down in 0.5dB increments. The 
final values must be within 10dB of the GSI defaults. 

Step 4 
Follow the instructions on the screen until all stimulus calibrations are complete. 

Step 5 
Press the RETURN hardkey to return to the Main Calibration Menu. 

Ipsi SPL Cal 

Step 1 
Press the IPSI SPL CAL softkey.  The IPSI SPEAKER SPL CAL will be dis- 
played. 

Step 2 
Adjust the overall calibration output level if necessary by pressing the Cal HL up/ 
down softkeys.  The level can be adjusted up or down in 5.0 dB increments. 

Step 3 (Custom Mode only) 
When a custom transducer is being calibrated as discussed earlier in Custom Trans- 
ducers, the TARG SPL softkeys will be active. 

Adjust the target SPL requirement for each frequency by pressing the TARG SPL 
up/down softkeys. The level can be adjusted up or down in 0.5dB increments. The 
final values must be within 10dB of the GSI defaults. 

Step 4 
Follow the instructions on the screen until all stimulus calibrations are complete. 

Step 5 
Press the RETURN hardkey to return to the Main Calibration Menu. 

GSI TympStar Version 1 and Version 2 Service Manual 

4 - 37

Содержание TYMPSTAR 1

Страница 1: ...Part Number 2000 0110RevB...

Страница 2: ...transmittedinanyformorbyanymeanswithoutthepriorwrittenpermissionofGrason Stadler Theinformation inthispublicationisproprietarytoGrason Stadler Partnumber 2000 0110 Printinghistory November 2001 First...

Страница 3: ...r failure due to tampering misuse neglect accidents modifica tion or shipping and is void if the instrument is not used in accordance with manufacturer s recommen dations or if repaired or is serviced...

Страница 4: ...made Any alterations of the present elec trical or mechanical construction or components will void these safety approvals CMOS handling Many of the integrated circuits on the PC Boards are constructe...

Страница 5: ...1 7 GSI default parameter settings 1 7 Specifications 2 1 Introduction 2 1 Standards 2 1 Version 1 Specifications 2 1 Sensitivity ranges 2 2 Probe signal 2 2 PneumaticSystem 2 3 Acoustic ReflexActiva...

Страница 6: ...ol 2 16 Temporal Specifications Of Stimulus Presentation 2 17 Environmental 2 17 Warm Up Time 2 17 Calibration Stability 2 18 Connectors 2 18 Electrical 2 19 Supplied Accessories 2 20 Mechanical 2 20...

Страница 7: ...Left column printout data 3 10 Color or black and white 3 10 Changing Instrument Versions 3 11 Changing from a Version 2 to a Version 1 3 11 Switching to V1 temporarily 3 12 Switching back to V2 3 12...

Страница 8: ...ted Ear Test Perforated TM 3 28 Multiple frequency tympanometry MULTIPLE Hz 3 29 Auto sequence testing 3 30 Programming auto sequence tests 3 31 Calibration 4 1 Introduction 4 1 When to calibrate the...

Страница 9: ...Self Cal 4 26 Switch 8 Load default calibration data 4 26 Probe serial number 4 26 Resolving problems 4 27 Calibration procedures 4 28 Hardkeys 4 28 Softkeys 4 29 Printing calibration sheets 4 30 Adj...

Страница 10: ...res 4 52 Self Cal 4 52 Loading default data 4 53 Contra Ipsi and Probe tone calibration 4 54 Contra and Ipsi Cal 4 54 External Input Calibration 4 55 Click Calibration 4 55 Contra SPL Cal 4 56 Ipsi Ch...

Страница 11: ...ving the instrument front panel label 5 29 Removing panel keypads 5 29 System Level Parts 6 1 General 6 1 Assembly drawings 6 1 Case chassis 6 2 Overall assembly 6 4 LCD assembly 6 5 Top case assembly...

Страница 12: ...Printer Board J6 8 4 Printer Board J4 8 4 Printer Board J8 8 5 Pressure Potentiometer Digital Board 8 5 Error Codes 8 6 CP Error codes 8 6 SP Error codes 8 16 Error Messages 8 19 LCD problem symptoms...

Страница 13: ...ys testparam eter choices and the possible alterna tives Admittance and pressure indications are shown on the LCD along with a continuous digital readout Test sta tus and invalid choices are also show...

Страница 14: ...scales for the display of reflex mea surement results can be selected manually Acur sor is available in all test modes for calling out numeric positions on the X and Y axes Version 1 equipment TympSt...

Страница 15: ...of 678 Hz and 1000 Hz are expressed in mmhos Sensitivity scales for the display of reflex measurement results can be selected manually Reflex test stimuli can be in put from an external source and pr...

Страница 16: ...us Within the probe box there are two small loudspeakers a microphone and a pressure transducer One loudspeaker delivers the probe tone to the ear canal whilethemicrophonemonitorstheintensityoftheprob...

Страница 17: ...xample pressing theTYMPhardkey causes theTymp Diagnostic screen to be displayed Tymp Diagnostic screen Tymp parameter menu GSI TympStar Version 1 and Version 2 Service Manual 1 5 Introduction A combin...

Страница 18: ...ser to navigatethroughtheTympDiagnosticparametermenusdiagrammedbelow These menus are from theVersion 1 however the process is the same in both versions GSIdefaultsoftkeyselectionsarecircledonmenudiagr...

Страница 19: ...grams Menu structure diagrams like the diagrams shown on these pages will be used throughout the remainder of this manual as a convenience to the user Sub menu of START daPa START daPa 600 400 200 200...

Страница 20: ...Chapter 1 1 8 Grason Stadler...

Страница 21: ...SI S3 6 1996 ANSI S3 7 1995 IEC 645 1 1992 IEC 126 1973 also BS 6111 1981 BS ISO 389 2 1994 Y2K Compliant UL 2601 1 Part 1 General Requirements for Safety CSA C22 2 No 601 1 M90 Canada CE Mark per Med...

Страница 22: ...Frequency Digital Read Out Graphical Including Cursor Display 226 Hz 7 0 to 7 0 0 16 to 0 80 0 16 to 0 80 Accuracy 226 Hz is 0 02 ml or 5 whichever is greater Probesignal Sinusoidal signal with the fo...

Страница 23: ...A 1 2cc coupler Noise Stimulus The transfer of reference threshold values was done by GSI using the Threshold Determination Method The transfer data from an IEC 711 to an ANSI HA 1 coupler was determi...

Страница 24: ...ntensityreductionbeginsat1 2ml Table 3 Upper limit of HL range in Reflex Threshold Mode 110 105 Lower limit of HL range for all stimulus signals 35 dB HL Hearing Level Increment 5 0 dB Hearing Level I...

Страница 25: ...ise from the instrument with reflex stim off when measured at 1 meter from the instrument shall be 50 dBA A weighting and SLOW averaging TemporalSpecifica Steady State Stimulus tions of Stimulus Initi...

Страница 26: ...ations anditmeetstheUL2601 1 CSA22 2andIEC60601 1 standards for safety Temperature Storage 40 degrees C to 75 degrees C Operating 15 degrees C to 35 degrees C Humidity 90 at 35 degrees C non condensin...

Страница 27: ...0 Hz Temperature Operating Range 15 C to 35 C Relative Humidity Operating Limit 90 Guaranteed Operating Elevation 6000 Ft 1800m Connectors STIMULUS External Stimulus Input Phone Jack Peak Voltage 3 VA...

Страница 28: ...al Equipment 2 Type B Medical Equipment 3 IPXO ingress of water ordinary equipment 4 Equipment not suitable for use in the presence of flammable anesthetic mixture with air or with oxygen or nitrous o...

Страница 29: ...on location DIMENSIONS AND WEIGHT W x D x H 20 38 inches x 15 inches x 12 6 inches LCD raised 52cm x 38cm x 32cm Height with LCD lowered 6 inches 15cm Weight 16 58 pounds 7 53 kg Shipping weight 29 50...

Страница 30: ...1994 Y2K Compliant UL 2601 1 Part 1 General Requirements for Safety CSA C22 2 No 601 1 M90 Canada CE Mark per MedicalDeviceDirective 93 42 EEC EN60601 1 1990 Safety Requirements for Medical Electrical...

Страница 31: ...Hz 21 to 21 5 0 to 25 1000 Hz 30 to 30 5 0 to 30 Accuracy 226Hz 0 1 ml or 5 whichever is greater Above 226Hz F 226 x 0 1 mmho or K whichever is greater K FACTOR From 250 to 1500 Hz 5 Above 1500 Hz 10...

Страница 32: ...y at which Delta B is zero B is measured at 200 daPa and at Peak Pressure ProbeSignal Frequencies Sinusoidal Discrete 226 Hz 678 Hz 1000 Hz Multi Freq From 250 Hz to 2000 Hz Multi Frequency Increment...

Страница 33: ...coupler Noise Stimulus The transfer of reference threshold values was done by GSI using the Threshold Determination Method The transfer data from an IEC 711 to an ANSI HA 1 coupler was determined by...

Страница 34: ...120 120 115 115 115 120 120 115 115 115 120 120 115 115 115 120 120 115 115 115 120 120 115 115 115 120 120 110 110 105 100 110 110 105 100 110 110 105 100 120 120 120 115 120 120 120 115 120 120 120...

Страница 35: ...0 115 120 120 115 120 120 115 120 120 120 120 120 120 115 120 120 120 115 Cf Versus C If Ipsi facilitator 500Hz 1000 2000 4000 6000 EXT SPL dbHL dbHL dbHL dbHL dbHL dbSPL 110 105 100 90 110 105 105 10...

Страница 36: ...esentationControl OFF mode signal level 20 dB SPL Signal To Noise Ratio 70 dBA Measured with disabled probe signal and A weighting for noise measurement Residual noise 25 dBA SPL Stimulus Present swit...

Страница 37: ...timulus on time 44 msec Stimulus off time 62 msec Rise and fall time 18 msec Period data for all other frequencies Period 115 msec Stimulus on time 44 msec Stimulus off time 53 msec Rise and fall time...

Страница 38: ...uency Range 50 60 Hz Temperature Operating Range 15 C to 35 C Relative Humidity Operating Limit 90 Guaranteed Operating Elevation 6000 Ft 1800m Connectors STIMULUS External Stimulus Input Phone Jack P...

Страница 39: ...ype B Medical Equipment 3 IPXO ingress of water ordinary equipment 4 Equipment not suitable for use in the presence of flammable anesthetic mixture with air or with oxygen or nitrous oxide 5 Mode of o...

Страница 40: ...ries depending on location DIMENSIONS AND WEIGHT W x D x H 20 38 inches x 15 inches x 12 6 inches LCD raised 52cm x 38cm x 32cm Height with LCD lowered 6 inches 15cm Weight 16 58 pounds 7 53 kg Shippi...

Страница 41: ...and menu examples use TympStar Version 2 images However the concepts and processes described apply equally well to both instruments Front panel controls Frontpanelcontrolsconsistofacombinationof hard...

Страница 42: ...med default criteria for reflex decay test Allows operator to recall and display tests in memory or in progress Allows operator to print selected test results Used when GSI TympStar is interfaced with...

Страница 43: ...ocated on the left and right sides of the LCD housing Their functions are printed directly on the push button and do not change The LCD housing hardkey functions include Clear Deletes selected tests s...

Страница 44: ...njunctionwithhardkeystonavigate throughmenusandsetparametervaluesfortheselectedtests Forexample press ing theTYMPhardkey causes theTymp Diagnostic screen to be displayed GSI developed default paramete...

Страница 45: ...Tympanometry The TympStar Version 1 measures compliance and shows the tracing on the graphic display as a solid line The TympStar Version 2 measures admittance Y and its components Susceptance B and...

Страница 46: ...d crystal display LCD shows axes for the graphic display of the selected test and pressure and compliance or admittance meters THETESTSTATUS line to the right of the graphics area of screen displays a...

Страница 47: ...t stimuli may be input from an external source and presented via external control The connections for these external inputs are provided on the rear panel of the Version 2 instrument These jacks are u...

Страница 48: ...line of Hewlett Packard DeskJet andLaserJet printers These printers provide full sheet printouts of test data Atest printout of results containing One left and right tympanogram graph A reflex thresho...

Страница 49: ...ter To set the external printer parameters parameters 1 Press the ETF hardkey to select the ETFtestmode thenpresstheRETURN hardkeytodisplaytheETFsub menu 2 Press the INSTRUMENT OPTIONS INTACT PERF INS...

Страница 50: ...nal Printer Setup Menu to set the left column of the printed data to the left or right ear 6 Press the PRINT TYPE softkey of the External Printer Setup Menu to set the printout toBlack andWhiteor Colo...

Страница 51: ...on 2 functionality and does not in clude 678 and 1000 Hz probe tones multi frequency tympanometry or ARLT testing To change from a TympStar Version 2 to a Version1 1 Press the ETF hardkey to select th...

Страница 52: ...s described below 1 Press the V2 softkey in the Version Menu Lock and key codes are dis played on the screen NOTE Press the CONTINUE softkey from this screen to keep the TympStar in the V1 Temporary m...

Страница 53: ...ity provides ex Version 2 panded testing capability and includes 678 and 1000 Hz probe tones multi frequency tympanometry and ARLT testing A license code must be obtained fromGrason Stadler to upgrade...

Страница 54: ...A LICENSE KEY TO LAUNCH V2 TYMPSTAR CONTACT YOUR GSI REPRESENTATIVE WITH THE FOLLOWING CODE 0A2B3C4E5D example of lock code YOUR GSI REPRESENTATIVE WILL PROVIDE YOU WITHA LICENSE KEY CODE ENTER THE L...

Страница 55: ...fitting on the side of theTympStar 2 Remove the cable clamp on the side of theTympStar 3 Remove the two retaining screws that secure the probe connector to the TympStar 4 Pull the connector straight...

Страница 56: ...NTATIVE WILL PROVIDE YOU WITHA LICENSE KEY CODE ENTER THE LICENSE KEY CODE HERE THEN PRESS THE DATA TRANSFER KEY Using an external keyboard type in the license key code as indicated by the on screen i...

Страница 57: ...URE KNOB to vary pressure and view ongoing test results graphically or on the pressure and compliance meters ManualTymp 1 Securely place the probe tip within the patient s ear canal and press the TYMP...

Страница 58: ...meters 1 Select test mode by pressing the REFLEX hardkey Default test param eters are displayed above softkeys on the LCD NOTE AUTO ZERO is used to baseline compliance 2 Press the START hardkey to pre...

Страница 59: ...o return to the reflex threshold diagnostic menu Reflex Threshold Threshold Seek automates the sequence of button presses used to arrive at Seeking reflex threshold values and also automates the marki...

Страница 60: ...memory Pressure Swallow Test intact TM 1 Select test mode by pressing ETF Default test parameters for ETF INTACT TM are displayed above softkeys on the LCD 2 Press START to initiate automated test TYM...

Страница 61: ...ETF hardkey followed by the RETURN hardkey 2 Select the INSTRUMENT OPTIONS softkey and then press the TEST SEQUENCE softkey 3 Select the REFLEX THRESHOLD softkey and press the ON OFF softkey to activa...

Страница 62: ...robe mount on the patient 6 Position the appropriate size eartip on the probe tip and securely insert in the ear canal 7 Press the EAR softkey then press LEFT or RIGHT ear 8 Press START to initiate te...

Страница 63: ...ete test data prior to pressing the STOP hardkey 6 Press the STOP hardkey to store the last two tracings in memory 7 Press the PAGE hardkey to view test results 8 Press the PRINT hardkey while in the...

Страница 64: ...ng pressure if tymp is sharply sloped i e offset from peak by 10 to 15 daPa 4 Select intensity of stimulus by pressing the INTENSITY up or down arrows Press the STEP SIZE softkey to set 1 2 or 5 dB st...

Страница 65: ...4 Press the NR LINE 1 or NR LINE 2 softkey to display no response NR 5 Select the EXIT softkey to return to the reflex threshold diagnostic menu Reflex Threshold Threshold Seek automates the sequence...

Страница 66: ...oftkeys may be used to define numeric points on Line 1 and Line 2 of the graphics area 7 Additional frequencies may be tested by using the STIMULUS up and down arrow hardkeys 500 Hz and 1000 Hz are th...

Страница 67: ...ticreflex 1 Press SPECIAL followed by RETURN sensitization 2 Select test mode by pressing the A R SENSI softkey Default test A R SENSI parameters are displayed above the softkeys on the LCD The test i...

Страница 68: ...test mode by pressing ETF Default test parameters for ETF INTACT TM are displayed above the softkeys on the LCD 2 Press START to initiate automated test TYMP 1 3 View ongoing test results as shown on...

Страница 69: ...test NOTE It may be helpful to select a sweep rate of 12 5 daPa sec for sharply sloped tymps 4 Ensure that the ear canal is securely sealed 5 Press START to initiate test Probe tone automatically swe...

Страница 70: ...Use up and down arrows to display desired Hz Press SET Hz softkey to select probe tone Use START or CONTINUE to run next tymp OR B Press DELTA DISPLAY softkey to return to delta display screen Cursor...

Страница 71: ...Threshold Auto Sequence Scroll through each stimulus by pressing the up and down arrow softkeys to scroll through the stimuli and toggle the YES NO softkey to program each stimulus for Reflex Thresho...

Страница 72: ...Chapter 3 Grason Stadler 3 32...

Страница 73: ...s LCD dis play The display will show current measurementparametersandgivein structions for completing the calibration Calibration Calibration parameters instructions 4 Calibration Introduction This ch...

Страница 74: ...without the need for calibration GSI recommends quarterly calibration checks for the GSITympStar along with annual certification ASHA requires quarterly electro acoustic calibration checks and annual...

Страница 75: ...lly and includes Check the Contra Ipsi and probe tone SPL calibration and recalibrate if necessary Perform Y or Y B G calibration Check the pressure system calibration and recalibrate if necessary Rou...

Страница 76: ...tial to clean the probe tip and Contra phone prior to calibration Step 1 Remove the probe eartip and tygon tubing at tached to the three metal probe tubes at the rear of the probe tip CAUTION Do not a...

Страница 77: ...s the larger di ameter Contra phone Step 1 UnplugtheContraphonefromthejack on the probe box and make sure the maintransduceropeningisclear Step 2 Unplug the Contra phone cable from the transducer by p...

Страница 78: ...d in the down position to performcalibrationsanddiagnostics Cal Option DIP switch NORMAL Mode CAL Mode Cal Normal switch The Cal Option DIP switch is lo cated on the digital board is used toconfigurec...

Страница 79: ...GSI values bya maximumof tion plus or minus 10 dB If the TARG SPL softkeys are pressed and released the outputlevelandLCDindicatedvaluewillchangeby0 5dB If these softkeys are pressed and held the out...

Страница 80: ...the following Hardware Diagnostics Ports Diagnostics MiscellaneousDiagnostics Error Log PressingtheHARDWAREDIAGsoftkeydisplaystheHardwareDiagnosticMode screen Therightsideofthescreenshowsreal timeana...

Страница 81: ...oadjustthegainofvoltagecontrolled amplifiersfortheIPSI CONTRA PROBEandMICcircuits TheDAClevelsand associatedcircuitgaincanbemanuallyadjustedusingtheDACLEVELfunction PressingtheDAC LEVEL softkey displa...

Страница 82: ...using the IPSI ON OFF CONTRAON OFFor PROBE ON OFFsoftkey TheminimumgainforeachcircuitcorrespondstoaDACvalueof0 themaximum corresponds to 255 The DAC Level is adjusted by pressing the UPand DOWNARROWso...

Страница 83: ...ftkeydisplays theHardwareDiagnosticModemenu atthe bottom of the screen IPSI ON OFF TheIPSIoutputchannelis toggled ON or OFF bypressingthe IPSI ON OFF softkey CONTRASOURCE ThesignalsourcefortheCONTRAch...

Страница 84: ...ttom of the LCD Pressing the PRESSURE MUX or MIC MUX softkey displays UP and DOWN ARROW softkeys that can be used to select a MUX source The PRESSURE MUX sources are shown in the upper left portion of...

Страница 85: ...nu The probe output tone and input filter mode can be selected by pressing the PROBE FILTER softkey The output can also be toggled between standard and multi frequencytones ThePROBE FILTERmenuwillbedi...

Страница 86: ...S This exampleshows afilter mode of 4 SWEPT BP selected PressingtheEXITsoftkeydisplaystheHardwareDiagnosticModemenu OutputsignalroutingforIPSIandCONTRAchannels bypressingtheROUTINGsoftkey TheRoutingme...

Страница 87: ...he Ports Diagnostic mode screen will be dis played Test results are displayed in the center of the LCD RS 232 INT ON OFF Pressing theRS 232INT ON OFFsoftkeytogglestheloopbacktestsequencefor the intern...

Страница 88: ...is pressedagain An example of the printed test data is shown below NOTE Any two orall of the PORTS DIAG tests can be conducted simultaneously Pressing the RETURN hardkey displays the Hardware Diagnost...

Страница 89: ...switches systemEEPROM softwaretimer and watchdog timer The system calendar and clock can also be set from the MISC DIAGmenu PressingtheMISC DIAG softkey displays the Miscellaneous Diagnostic Mode scre...

Страница 90: ...bottom Pressing the SET softkey displays the Set Date Time menu at the bottom of the LCD Pressingthe SETDATEorSETTIME softkey displays the current settings for the date or time respectively across the...

Страница 91: ...thesetting value Whenthedesiredvalueisdisplayed presstheRETURNhardkeytodisplayallof thedateor timesettings PressingtheSETsoftkeystoresthecurrentdateortimesettingsinsystemmemory andreturns to theSetDa...

Страница 92: ...Disallwhite LCD is a checkerboard Blackonwhitesquares thenwhiteonblacksquares Thecheckerboardpatternautomaticallydecreasesinsizeuntilthetestis complete TheprobeboxLEDsilluminateasfollows LCDisallblack...

Страница 93: ...n theLCD Pressingandholdinganyhardkeyorsoftkeycausesthesystemtodisplaythename of the key and to indicate that it is pressed Releasingthekeychanges thedisplaytoindicatethatthehardkey or softkeywas rele...

Страница 94: ...G Do not touch any wires circuitry orcomponents in theTympstar enclosure directly or with conductive tools AC power present in the enclosure can cause serious injury or death PressingtheEXITsoftkeydis...

Страница 95: ...halts the test PressingtheEXITsoftkeydisplaysthe MiscellaneousDiagnosticmenu SOFTWARE TIMER PressingtheSOFTWARETIMERsoftkeydisplays thesoftwaretimertestresults and starts an automatic timer test Theso...

Страница 96: ...he system for premature watchdog timertriggering Thesoftwaretimershouldcompleteitscyclewithouttriggeringthe watchdogtimererror Pressingthelargertimevaluesoftkeyteststhesystemforwatchdogtimerfailures T...

Страница 97: ...oftkeydisplaysadate time stampedlogoferrors TheErrorLog displays theprocessor major errornumber andminor error number arelisted Refer to Chapter 8 Troubleshooting for error descriptions GSI TympStar V...

Страница 98: ...e Cal mode is enteredwiththeswitchintheONposition softkeyswillbedisplayedontheLCD providingachoice of default datathat can be loaded CAUTION Default data is not accurate for test measurements It is on...

Страница 99: ...heprocessagainfromthebeginning Ifyouencounteraproblem Check your equipment test cavities and connections and start over Stillhaveaproblem Clean the probe or Contra phone check the probe tubes and star...

Страница 100: ...Adjustsoutputlevelofstimulustoneup or down in0 5dBincrements Presentbar Togglesthestimulustoneonandoff Datatransferkey Storescurrentlydisplayedcalibration valuesoftonefrequencyandlevelinthe TympStar...

Страница 101: ...rossthebottomofthescreenandcanbeselected bypressingthedesiredsoftkey Navigatingmenus Eachcalibrationtestfunction issupportedbyauniquemenuhierarchy oftests as illustratedbythePressureCalmenuhierarchysh...

Страница 102: ...FT or PRINT RIGHT softkey Pressing PRINT LEFT prints the data content of the screen Pressing PRINTRIGHTprints the calibration instructions shown onthe screen These screen printouts can be included in...

Страница 103: ...e needfor separatetransducertarget SPLadjustments 80 dB HL changed to 90 dB HL The TARG SPL level shown on the CONTRA SPL CAL and IPSI SPL CAL screenscanonlybeadjustedwhenacustomtransducerhasbeenspeci...

Страница 104: ...n of CONTRA and IPSI SPL Step 3 Whencalibrationiscomplete entertheNormalModeandverifythat NON GSI isdisplayed nexttodBHLon theLCD Transducers must be clean and completely inserted into the HA 1 couple...

Страница 105: ...libration sequence return to the normal mode and check compliance calibration at 0 daPa Then re enter the Cal Mode and verifythatIpsiandContrasoundpressurelevelsarewithinthespecifiedaccuracy Attenuato...

Страница 106: ...inplace Self Calibrationstoresnewprobetonefrequencydatain theTympStarandmustbeperformedifcircuitboardscontainedwithin theinstru ment digitalboardandanalogboard arerepaired Self Calibrationisnotrequire...

Страница 107: ...tone frequencies and oscillator clock frequencies The STIM SPLDATAis default data stored for the Ipsi and Contra transducers The GSIUSERKEYDATAisdefaultdatastoredfortheinstrumentfunctionkeys such as p...

Страница 108: ...e of the transducer The stimulus output voltage has reached its limit Step 1 Press the CONTRASPLCALsoftkey The CONTRAPHONESPLCALscreen willbedisplayed Step 2 Adjusttheoverallcalibrationoutputlevelifne...

Страница 109: ...theoverallcalibrationoutputlevelifnecessaryby pressingtheCalHLup downsoftkeys Thelevelcanbeadjusted up or down in5 0dBincrements Step 3 Custom Mode only Whenacustomtransducerisbeingcalibratedasdiscuss...

Страница 110: ...SPLCALsoftkey ThePROBETONESPLCALscreenwillbedisplayed Step 2 Followtheinstructionsonthescreenuntilthecalibrationiscomplete Step 3 Press the RETURN hardkey to return to the Main Calibration Menu Graso...

Страница 111: ...Calfunction Step 2 Verifythatthealtitude elevation displayedonthescreeniscorrectforyoursite If it is not increase or decrease the value using the altitude up down arrows The altitude can be increased...

Страница 112: ...continue Additionalcalibrationinstruc tionwillbedisplayednearthebottomofthescreen Step 4 Followtheinstructionsonthescreenuntilthecalibrationiscomplete Step 5 Press theRETURN hardkeytoreturn totheMainC...

Страница 113: ...layed Pressurefunctionsthatcanbecalibratedorverifiedinclude the following Ambient pressure 0 daPa reference Low and high pressure limits 600 400 Pressure leakmeasurement Pressurelinearity Safety valve...

Страница 114: ...pressurecalibrationfeatures menuhierarchy isshown Below in the following figure PR ESSU R E C A L SE T SE T V E R IFY A M B IE N T 600 400 C A L G O T O G O TO L E A K PR IN T PR IN T ST EP STE P SA F...

Страница 115: ...cablestrain relief byhand Remove the two metal and two nylon screws CAUTION These screws must be reinstalled in the same positions later Carefully remove the probe cover CAUTION Do not disconnect the...

Страница 116: ...tructionsonthescreen When theGO TO 600 softkey is pressed the meter will display the current 600 daPapressure ThemanometerandLCDmeter shouldagreewithin10 Step 3 If the LCD meter is not within the re q...

Страница 117: ...to achieveanacceptablereading NOTE The span potentiometercontrols the 600 daPa and 400 daPa levels Any adjustment at one pressure affects the other The adjustment of 600 and 400 is sometimes an iterat...

Страница 118: ...e the 1 0 daPa limits check the probe tubes connections and the cavity and cavity sealing surface Using the DIAG NOSTIC function can assist troubleshooting Contact GSI technical sup port if you are un...

Страница 119: ...n Ifthesafetyvalveoverpressurevaluesfalloutsidethe acceptablerange open theTympStar enclosure WARNING Thisadjustment is performedwhiletheinstrument enclosure is open and power is applied Do not touch...

Страница 120: ...ter 4 Adjust the safety valve to obtain satisfactoryoverpressure readings Negative pressure Positive pressure Step 3 Press the RETURN hardkey to return to the Pressure Calibration Menu Grason Stadler...

Страница 121: ...reenwillbedisplayed Use the diagnostic features to facilitate pressure system troubleshooting if neces sary Step 2 Press the RETURN hardkey once to return to the Pressure Calibration Menu or twicetore...

Страница 122: ...hes of the Cal options DIP switch to OFF down Set the Cal Normal switch to Normal up Verify that the probe and Contra phone are clean and ready for use Close thecover andreinstall the three retaining...

Страница 123: ...obe tone SPL calibrations Y B Gcalibration Pressuresystemcalibration Upon completion of a complete calibration sequence return to the normal mode andcheckcompliancecalibrationat0daPa Thenre enterCalMo...

Страница 124: ...rt struts in place Self Calibrationstoresnewprobetonefrequencydata intheTympStarandmustbeperformedifcircuitboards containedwithintheinstrument digitalboardandanalogboard arerepaired Self Calibrationis...

Страница 125: ...tone frequencies and oscillator clock frequencies The STIM SPLDATAis default data stored for the Ipsi and contra transducers The GSIUSERKEYDATAisdefaultdatastoredfortheinstrumentfunctionkeys such as...

Страница 126: ...pear when The stimulus is 5dB outside the acceptable sensitivity range of the transducer The stimulus output voltage has reached its limit The TympStar version 2 provides click output stimuli and an i...

Страница 127: ...alibratedwithdefaultdatawhenitleavesthefactory The defaultdatawillassumethata1 0VRMS 1kHzvoltageisappliedattheinputand thattheoutputiscalibratedinSPL i e 80dBdialreadingwillprovide80dBSPL of 1 kHz out...

Страница 128: ...LCALscreenwillbedisplayed Step 2 Press the IPSI CHANNEL softkey The CONTRA PHONE SPL CAL IPSI CHANNELscreenwillbedisplayed Grason Stadler Chapter 4 ContraSPLCal Step 1 Press the CONTRASPLCALsoftkey Ip...

Страница 129: ...t SPL requirement for each frequency by pressing the TARG SPLup downsoftkeys Thelevelcanbeadjustedupordownin0 5dBincrements Thefinalvaluesmustbewithin10dBoftheGSIdefaults Step 5 Followtheinstructionso...

Страница 130: ...dearlierinCustomTrans ducers theTARGSPLsoftkeys will be active AdjustthetargetSPLrequirement for each frequency by pressing theTARG SPL up downsoftkeys Thelevelcanbeadjustedupordownin0 5dBincrements T...

Страница 131: ...1 Press the IPSI SPLCALsoftkey TheIPSISPEAKERSPLCALwillbedisplayed Ipsi Channel Step 2 Press the IPSI CHANNEL softkey The IPSI SPEAKER CAL IPSI CHAN NELscreenwillbedisplayed GSI TympStar Version 1 and...

Страница 132: ...active AdjustthetargetSPLrequirement for each frequency by pressing theTARG SPL up downsoftkeys Thelevelcanbeadjustedupordownin0 5dBincrements The finalvaluesmustbewithin10dBoftheGSIdefaults Step 5 Fo...

Страница 133: ...s theTARGSPLsoftkeys will be active Adjust the target SPL requirement for each frequency by pressing the TARG SPL up down softkeys The level can be adjusted up or down in 0 5dB incre ments The final v...

Страница 134: ...SPLCALscreenwillbedisplayed Step 2 Follow theinstructions on thescreen to calibrateprobe tone frequencies from 226 Hz through MULTHZ 1500 Step 3 Press the VERIFY MULT HZ softkey The VERIFYMULT HZ scre...

Страница 135: ...all frequencies from 250 Hz to 2kHzarewithintheacceptable range Step 5 Press the EXIT softkey to return to the PROBE TONE SPL CALIBRATION screen Step 6 Press the RETURN hardkey to return to the Main C...

Страница 136: ...ayedonthescreeniscorrectforyoursite If itis not increaseor decreasethevalue usingtheALTITUDEup downarrows The altitude can be increased or decreased in 50 foot 16 meter increments NOTE You will not be...

Страница 137: ...alibrationinstruc tionwillbedisplayednearthebottomofthescreen Instructions Step 4 FollowtheinstructionsonthescreenuntiltheY B Gcalibrationiscomplete Step 5 Press theRETURN hardkeytoreturn totheMainCal...

Страница 138: ...ided earlierinthis chapterfortheTympStarVersion1 Whenallcalibrationshavebeencompleted Set all switches of the Cal options DIP switch to OFF down Set the Cal Normal switch to Normal Verify that the pro...

Страница 139: ...resent within the enclosure that can cause serious personal injury or death WARNING High voltage might be present in the LCD display enclosure Never open the LCD enclosure while power is applied to th...

Страница 140: ...integrated circuit pack age is handled can result in damage to the instrument 1 Place the instrument and components on a grounded conductive work surface 2 Ground yourself with a wrist strap having ab...

Страница 141: ...minimum of standard electronic pro duction tools are required for disassem bly and component replacement activi ties Nut driver set Small and medium Philips screwdrivers Small and medium straight edg...

Страница 142: ...retainertabsandpullingthe connector straight up CAUTION During reassembly the flat 60 pin digital signal cable must be folded to the rear out over the pump not to the front over the analog board Step...

Страница 143: ...crews at the corners of the board Step 8 Remove the analog board by grasp ing the upper left and lower right cor ners and pulling the board straight away from the probe connector Gen tly rock the boar...

Страница 144: ...board Step 2 Remove the 20 pin digital signal cable fromtherear of thedigitalboard mounted under the cover by disengag ing the two cable connector retainer tabs and pulling the cable straight out of...

Страница 145: ...short Philips screwdriver fully loosen the four retaining screws around the bellows on the bottom of thepumpassembly Thepumpassem bly can now be lifted out of the chas sis GSI TympStar Version 1 and V...

Страница 146: ...he connector straight up Step 3 Remove the four board retaining screws CAUTION The lower right board retaining screw is a special plastic screw and must be replaced in this position along with the pla...

Страница 147: ...nel and remove the two retaining nuts using a 1 4 open end wrench Step 3 Remove the power module from the chassis Fuse holder The fuse holder can be removed us ing a flat edge screwdriver NOTE Holes m...

Страница 148: ...g screw whileholding theknob NOTE It is unnecessary to c o m p l e t e l y remove the screw Step 3 Remove the knob Step 4 Using a nut driver remove the LCD contrast control potentiometer s re taining...

Страница 149: ...he 20 pin digital signal cable by pulling the cable connector straight out of the housing Step 4 Disconnect the printer motor connec tor by pulling it straight away from the board Step 5 Remove the pl...

Страница 150: ...he two screws left and right that secure the printer doorframe to the cover Step 4 Remove the printer doorframe by holding the top and bottom together as the assembly is lifted up and toward the front...

Страница 151: ...printer The paper bar must first be moved aside to provide access to the screw Hold the roll release lever in its top position while pressing down on the bar release then move the paper bar to expose...

Страница 152: ...at the front and rear of the printer as sembly Step 9 Carefully remove the printer assem bly from the top cover while guiding the printer cables through the slots in the cover Step 10 Disconnect the d...

Страница 153: ...the PC104 board Step 3 Disconnect the male 15 pin D con nector from the PC104 board by pull ing the connector straight up Step 4 Disconnect the female 15 pin D con nector from the PC104 board by pull...

Страница 154: ...move the PC104 board by pulling the connector on the end of the board straight away from the digital board Gently rock the connector slightly back and forth to ease the connector out of the digital bo...

Страница 155: ...wrench Loosen the two setscrews and lift the knob off the panel CAUTION Verify that there is clearance be tween the bottom of the knob and the panel surface when reinstalling and tightening the knob...

Страница 156: ...ing the two cable connector tabs and pulling the connector straight away from the board NOTE GSI recommends that all digital board cables connected to the PC 104 board remain temporarily connected to...

Страница 157: ...ew Step 10 Removetheremainingeightretaining screws and gently move the board away from the connector holes in the back of the cover When the connectors on the board have cleared the holes lift the boa...

Страница 158: ...or cable clampretainingscrew andremovethe cable clamp Step 3 Unclamp and remove the three surge suppressors Step 4 Cut and remove the plastic cable tie that secures the LCD cables to the cover Grason...

Страница 159: ...n and rotate the LCD forward to expose the screw holes in the back of the LCD enclosure Step 7 Remove the six screws that secure the back cover to the LCD enclosure Step 8 Gently lift the LCD back cov...

Страница 160: ...bled in exactly the same orientation Step 11 Disconnect the inverter assembly cable Step 12 Disconnect the 12 pin cable connec tor from the LCD assembly by grasp ing the connector firmly and gently pu...

Страница 161: ...nnector Step 15 Unplug the black plastic cable con nector Step 16 Remove the left hinge cover LCD cable ground cable and keypad cable by carefully pulling the three cables through the hinge block chas...

Страница 162: ...k cable header sideways in the cable opening Gently pull the LCD cable header through the hole Step 20 Orient the flat Softkeypad cable header sideways and pull the header through the hole while gentl...

Страница 163: ...cover straight off the LCD enclosure Step 4 Disconnect the 12 pin cable connec tor from the LCD assembly by grasp ing the connector firmly and gently pulling it straight off the pins Gently rock the c...

Страница 164: ...LCD board screen assembly The LCD is attached to the rear of the board CAUTION Do not touch the surface of the LCD Clean the surface if neces sary using clean compressed air CAUTION The screen surface...

Страница 165: ...er to the LCD enclosure Step 3 Gently lift the LCD back cover straight off the LCD enclosure Dis connect the black Softkey cable con nector Step 4 Fold but do not crease the keypad flex circuit cable...

Страница 166: ...including the small piece of paper beneath the flex cable Tri fold the ground tab and stick the label to the LCD front panel while simul taneously inserting the flex cable connector and ground tab thr...

Страница 167: ...emoving panel Step 1 keypads Remove the PC104 and digital boards as described earlier in this chapter Step 2 Gently pull therubber keypad contacts out of the holes in the front panel CAUTION During re...

Страница 168: ...Chapter 5 Grason Stadler 5 30...

Страница 169: ...s and assemblies are showngraphicallyusingdrawingswithpart andassemblynumberdesignations Assemblydrawings Thefollowingassemblydrawings areincluded Case chassis page 6 2 Overallassembly page 6 4 LCD as...

Страница 170: ...Chapter 6 Case chassis Grason Stadler 6 2...

Страница 171: ...System Level Parts GSI TympStar Version 1 and Version 2 Service Manual 6 3...

Страница 172: ...Chapter 6 Overallassembly Grason Stadler 6 4...

Страница 173: ...System Level Parts LCD assembly GSI TympStar Version 1 and Version 2 Service Manual 6 5...

Страница 174: ...Chapter 6 Top case assembly Grason Stadler 6 6...

Страница 175: ...System Level Parts Bottom case assembly GSI TympStar Version 1 and Version 2 Service Manual 6 7 3V Lithium Battery Panasonic BR1632 or equivalent...

Страница 176: ...Instrumentassembly 6 8 Chapter 6 Grason Stadler...

Страница 177: ...System Level Parts Labels GSI TympStar Version 1 and Version 2 Service Manual 6 9...

Страница 178: ...Chapter 6 Grason Stadler 6 10...

Страница 179: ...System Level Parts PrinterAssembly GSI TympStar Version 1 and Version 2 Service Manual 6 11...

Страница 180: ...Chapter 6 Grason Stadler 6 12...

Страница 181: ...OC after OS is booted the CP EXE program is loaded and run under the PharLap OS 4 OncetheCP EXEprogramiscompletelyloadedinmemory itbeginsrunning afterasmallamountofcompilergeneratedstartupcode toiniti...

Страница 182: ...suchastheDatacellindividuallyaddressabletest the Walking one data test an theWalking zero data test Failuresarereported as failsafecodes 14 TheProbeSerialNumberasstoredinSEREEisread Thiswillalsodeterm...

Страница 183: ...enter the user directly into the V2 lock keycodeentrymenu 30 Instrument Options areread alluserstoredvalues areread fromDOC ifthey don texistor are an invalid versionfailsafe is implemented this is a...

Страница 184: ...ading RTLvalues GSI defaults are loaded 43 The unit wereadstheCAL DIAG NORMALrunswitchanddeterminesthe mode normal mode calibration mode or diagnostics mode and for the latter two theappropriatesequen...

Страница 185: ...Hardware Description Interconnection diagram GSI TympStar Version 1 and Version 2 Service Manual 7 5...

Страница 186: ...d Theprinteriscomprisedof the following Paper advance motor Paper present photo eye Fixed thermal head Theprobeiscomprisedof the following Two speakers an IPSI stimulus speaker and a probe tone speake...

Страница 187: ...esponds to the keyboardcommandsanditmanipulatesthemeasurementdatafordisplayandprint ing ThePC104boardincludes the following EmbeddedAMD DX5 133 processor Pentium grade ISA interface to digital board A...

Страница 188: ...rdcontainstheprintermotorcontrolcircuits theprinterheadcontrol circuit and thecode for appropriate printing ofdata for boththeinternalthermal printer andan externalHP printer Theprinterboardincludes t...

Страница 189: ...Hardware Description System assembly diagram LCD front LCD rear AC Power module Probe GSI TympStar Version 1 and Version 2 Service Manual 7 9...

Страница 190: ...Chapter 7 Printer board Digital board Power supply board Pump Analog board PC 104 board Grason Stadler 7 10...

Страница 191: ...emssymptomsandprobablecauses Printerproblemssymptomsandprobablecauses ThehardwareDiagnosticMode System power supply measurements PowerSupply J2 8 page 8 1 page 8 6 page8 19 page8 22 page8 22 page8 23...

Страница 192: ...5 7groundreference Pins 8 9 24 VDC Pins 10 12 0VDC Pin 11 12VDC Pin 13 12VDC Pin 13 Pin 1 Red wire Pin 1 24VDC Pins2 3 groundreference Pin 4 12VDC Pin 5 12VDC Pins6 7 groundreference Pins 8 9 5VDC Pin...

Страница 193: ...5 00VDC Pin4 groundreference Pin 1 Digital Board J28 Pin 1 24VDC Pin 2 3 Probe Ground Pin 4 12VDC Pin 5 12VDC Pin6 7 GroundReference Pin 8 5 00VDC Pin 1 Digital Board J34 Pin 1 5 00VDC Pin2 3 4 Ground...

Страница 194: ...in2 groundreference Pin 3 5 00VDC Pin4 groundreference Pin 1 Pin 1 2 24VDC Pin3 4 groundreference Pin 5 6 7 STROBE 1 2 3 Pin8 THERMISTOR Pin 9 STROBE 4 Pin10 PRTLATCH Pin 11 STROBE 5 Pin 12 5 00VDC Pi...

Страница 195: ...n 1 5 00VDC Pin4 groundreference Pin 1 Pressure Potentiometer DigitalBoard Pin1 Red GroundReference Pin2 White 200dapa 4 29VDC 400dapa 3 84VDC Pin 3 Black 5 00VDC Pin 1 Red wire GSI TympStar Version 1...

Страница 196: ...does not respond to communication request by CP Subcodes none Likely Cause When the system is first booted the DPRAM is enabled and the SP is taken out of reset i e initialized and must respond to the...

Страница 197: ...he main CP menu handler This key is expected to be one of the 6 softkeys SK1 SK6 and if it is another hardkey it should have been handled previously This indicates an internal software failure 1401 AB...

Страница 198: ...to the communication task layer for transmission of test data Subcodes none Likely Causes The communications task layer has indicated that it could not process the request in the current state Protect...

Страница 199: ...Q_TIMEOUT Timeout by the SP while processing a multiple frequency probe tone during a command sent from the CP Subcodes probe tone frequency in Hz Likely Causes If the SP is not responding for any rea...

Страница 200: ..._BAD_READ_ITEM Data read item invalid Subcodes none Likely Causes The data file system was asked to read an item that it does not recognize There is a look up table that describes all of the possible...

Страница 201: ...e of the problem one or more data files may have been corrupted due to a previous system crash possible if a file was open for write and system crashes for any reason It is also possible to be a DOC f...

Страница 202: ...bit routine Subcodes none Likely Causes Ports are defined in a look up table and all callers should know if their port is 8 bit or 16 bit This failure indicates an internal software failure Attempt t...

Страница 203: ...int job Subcodes none Likely Causes After the print job is spooled the print job is submitted and we check to ensure that the buffer passed was non NULL Since we pre allocate our canvas buffers this w...

Страница 204: ...nding during entry to CAL Contra IPSI SPL mode Subcodes none Likely Cause During CONTRA IPSI SPL calibration the SP is asked to perform the actual calibration If the SP does not respond to the request...

Страница 205: ...3306 ABORT_HW_SEREE_PROBE_VER_INCOMPAT Probe EE was incompatible version could not upgrade Subcodes current probe ver Likely Causes An unknown probe version has been attached to the TympStar For exam...

Страница 206: ...Causes Software error Escape Instruction Interrupt Processor will generate this failure if the ESC instruction is executed The software never instructs this in normal operation Subcodes None Likely C...

Страница 207: ...eset Subcodes Address of failure Likely Causes Shorted data lines open data lines intermittent address lines defective component at U1 0036 Compliance Calculation Coefficent Out of Range Signal proces...

Страница 208: ...he probe speaker level is to be written to EEPROM during pseudo code execution that the probe speaker mux is set to the corresponding position Subcodes Invalid position Likely Causes Software error Pr...

Страница 209: ...ely at fault AControl Processor HELP1052messageis also likely to occur ERROR INVALID SELECTION DURINGCALMODE Thekey pressedisnotvalidwhileinthecalibrationmode NOTESITE ALTITUDEDEFAULTED TO0 RE ENTERIF...

Страница 210: ...tstimulus NR Screeningreflextestresultindicatingthatthetestwasstoppedforthatstimuluswith noreflexdetectedduetoanattenuatorlimiterrorwhensettingtheattenuatorforthe intensitybeingtested NT Screening ref...

Страница 211: ...ofthe Pressure Cal Mode ERROR INVALID SELECTION PROBE TONE NOT SELECTED The Present Bar was pressed to turn on the probe tone without a probe tone fre quencybeingselectedduringtheprobetoneCalMode ALER...

Страница 212: ...Artifact In The Hardwall Cavity Check for pinched probe tubes inside the probe box Replacetheprobeor checkthestimulus callevels Compliance or Y B or G calibration shift 1 Tubing length from the probe...

Страница 213: ...sopen itis thecauseof the fault ALERTPRESSURE SYSTEM ERROR POSSIBLE LEAK Message occurs at power up or during any test attempt Checkpumpphotoeyeforproperfunction Printer problem symptoms and probable...

Страница 214: ...al pressure pot signal to the control processor A Dconverter digitalboardschematic Therearesixadditionalsignals connectedtoit whichduringinitializationaremonitoredasintegritycheckstopro vidediagnostic...

Страница 215: ...quency andtheprobe tonesignalfor ON or OFF Theseselectionsenable youtotroubleshoottheprobetoneoscillator probetonechannel probeassembly andmicrophonefiltercircuitry DAC levels The level control DACs D...

Страница 216: ...oscillator can be routed toeither channel and thedesired stimulus canbe selected Thismode inconjunctionwiththeRoutingMode enablesanalysisofallthepossible mixing routingandavailablestimulusselections T...

Страница 217: ...8 Version 2 3 25 Automatic Auto Zero Version 1 3 18 Version 2 3 25 Automatic timer test 4 23 B Backlight inverter board 7 6 Bar release 5 13 Bellows 5 7 Bellows assembly 7 6 BIOS 7 2 7 7 Block diagram...

Страница 218: ...28 Date and time settings 4 18 Default data 4 53 Default parameter settings 1 7 Diagnostic 4 49 Diagnostic mode 4 8 Diagnostics 4 8 4 66 Digital board 5 17 7 6 7 7 Digital Board J28 8 3 Digital Board...

Страница 219: ...Hardware Diagnostic Mode 4 8 8 24 Hardware Diagnostics 4 8 Hold hardkey 3 2 Hold valves 7 6 I I C 4 14 I I 4 14 IDE hard disk interface 7 7 Instrument assembly 6 8 Instrument controls 1 5 Instrument V...

Страница 220: ...rnal printer 3 8 Preparing for calibration 4 4 Present 3 3 Present bar 4 28 Present hardkey 3 3 Pressure A D MUX 8 24 LCD panel label 5 27 LCD panel softkeys 4 28 LCD problem symptoms and probable cau...

Страница 221: ...obe tone and filter mode 8 25 Probe tone calibration 4 36 4 54 Probe tone frequencies 1 2 1 3 3 5 Version 1 3 5 Version 2 3 5 Probe tone generation 7 7 Index Probe Tone SPL Cal 4 38 4 62 Probe tones 4...

Страница 222: ...6 Version 1 2 17 Routine calibration sequence 4 33 4 51 Mechanical ROUTING 4 14 4 54 8 25 Version 1 2 9 RS 232 loopback connector 4 16 Version 2 2 20 RS 232 ports 4 15 Pneumatic system RS232 port 7 2...

Страница 223: ...22 Tymp screening 3 23 Test data Erasing and clearing 3 7 Paging 3 7 Test data and the cursor 3 7 Test mode 1 5 3 4 Test mode choices 1 2 1 3 Test modes and menu navigation 1 5 Test parameters 3 3 3...

Страница 224: ...es 5 9 Worm gear 7 6 Wrist strap 5 2 Y Y Cal 4 39 Y B G Cal 4 64 Index 8 Index Version 2 probe tone frequencies 3 5 Version 2 Specifications 2 10 Version 2 test procedures 3 22 Version 2 to Version 1...

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