Service Manual

Audio Traveller AA220

Partnumber 59292
Valid from serial 103785 to serial 121712

DK-5610 Assens
Denmark

Phone: +45 6371 3555

Fax: +45 6371 3522

E-mail info@interacoustics.dk
www.interacoustics.dk
°

° °

shift
±
 Ω

Ω
Ω

Ω
Ω
 ±

±
±

± ±

± ±
± ±

±
±

±
±
±
±

−
− ±

− ±

− ±

− ±

−
[dB re. 20 [dB re. 20 [dB re. 20 [dB re. 1µN] [dB re. 1µN] [dB re. 20
µPa] µPa] µPa] µPa]
shift>

shift>

±
±
± ±
Attenuator Calibration channel 1. Figure 1

Attenuator Calibration channel 2.Figure 2

Attenuator Calibration. Figure 3

The Calibration Menu. Figure 4

Probe Calibration Menu. Figure 5

Pressure Calibration. Figure 6

Probe Tone Calibration Figure 7
Compliance Calibration. Figure 8
 Probe Real Mode Figure 9

Ipsi Calibration Menu. Figure 10

Information Window. Figure 11
Headset calibration. Figure 12

Information Window. Figure 13

EEPROM Service Menu. Figure 14
 9 15
1 8
 Power Supply

VDD1 = +12VDC
VDD = +5VDC
GND = 0VDC

Intensity
INC/DEC CH1

Intensity
INC/DEC CH2

Shift

Pause/ Tymp/Reflex Print/

EFT Audiometry Man./Auto Ipsi Contra
new subject Print Screen

Right Left Bone R/L Talk Forward Function Store/

No Response

Bone Left

Bone Right
F1 F2 F3 F4 F5 F6 Back Left

Right

Contra

Ipsi
Frequency Frequency Intensity Intensity Intensity Intensity
Decrease Increase Decrease Increase Decrease Increase
Print/Print Screen

Auto

Man.

Audiometry

EFT

Reflex

Tymp

Pause
 1 9
2 1
D11

1
D17
4

CO12 CO13

1
CO1 CO2 CO3 CO4 CO7 C201

R169
1
VDD1
RL1 RL3
1 1 1
IC57
1

IC50
RC3

R154
1
1
RC1 RL6 + R161 R165 IC55

R167
C202 C210

12
C184

C136 R118 C135

D7

1
D3
D4

R105 R114
D1

IC39
C141 R122 R121

R184
+

C213 C219
R181
8
C179 1
C195

1
9
D15
C97
+
C109 L14

CO16
3 D12 4 C175

C126 C130

C196 R170
C121

C155
D13 C199
2 1
2

D9 R82 D14 2 26

C212
R152 C174
C164 CO14

IC56
RL5

CO5
1
3

VDD

C122
C99 C98

R98 1

IC29 R109

R172
C131

R171
1
RL7
2 1
4

1
D2
D10

+
+
IC26 C112

R156
RL4

R157

D18
1

R151
D16
D5

+
1

R191 R190
1
RL2 3 4 R99 C137 C169 C222
C82

F2
D8

R83 C113 C198

+
R76

15

22
C165
2

R70 R119 R195

+
V3
D6

R79 V4 C204 C205

C138
R123
R124

C211
R107
C14 C151
R106
R84
C114

R115
C188
3

R186
R188
R185
3 4
R110 C176 L29
R85 IC40
2

C20
18
C173 C180 L26 IC61
29

1
F1 R86 81
3

T1 R16 1

MP8
C56

R126 R224 R160

1
C31

R87

R130
C156

9
R17 R50 C64 R88 15 CO8 L15 C223
C21 T3 R51 R60 IC21 R89 R125 +
C192 L28
V2

1
C142

1
T2 IC30 R132 C166 R179 C224
C32

R18 C57 R61 R90 IC51

IC48
1

R168

RC4
C22 R52 1
R133 C152 +
C208
R91 C159
C255 C254 IC12 C66

C1 IC36

R177 C206
C58
IC13

T4 40
C146
C153

R153
R155
C2 C182

L27
R92
IC1

C157 T7 L30

8
1 +
R100 C115

C23 C123 C127

C139
R148

R116
1
C74

IC22

R81 C100
1

R128 X3
R80

MP1 C33 C65 R120 CO10 1

C186
C50 C193 L25

51
R108 C225
C147 R129 T6
31
1

1
MP3

R25

R145
C116

C253

R164
R117

IC27
R112 R111

C15

L21
IC31 R223
1

C181
MP0
1

L18
+

C25 1
MP9 T5
IC18

1
R15 C207 C214

C220
R53 R48

GND
R221

IC10 IC70

1
C91 R140 CO11 1
C143 R127

C215

C177
C10
+
IC11 C110 R101 C160 MP11
R142

IC5
R71

9
R113

R93 R102
C132

C70 R74 MP10 CO17

C190
1
9

73 17

C194

IC59
9

109
IC2 C24 R19
51

C221
+ +
81
R78

C26

L23
L16
11

1
R21
+
pu10 0007 00005
1

IC32

C170
R31 C51 C59 C71 C83 RC2 VDD
C12 C11

C3 C34

1
R33 R32

R198
IC41 IC52 C216
9 9
CO18 CO19 R214

C248
1 1
C128
C133

IC47 R196
11

C239
+
1
C4

R64 R63 R62

MP6

C233
C217 R211
C72

IC19 C92 L24

C111

MP7 RC6

L17
RC5
C95

IC14 R96
R1

C35 MP15
31

1
+
1 C189 R199 C244
P3 C84
R104 R103

1 +
C129
C144

1
C36 1 1
L31
1

37
IC23
R23 R22

C101 1 IC28 C178

11
MP4 IC33 C148 MP14
R143
R144

C236
R141
1

P5
R2

C85
IC15

GND 1
C60

1
IC34 C218 C227
C43

IC3 IC6 C42

R77
P4

17
+
+
R97

1
C134
C117
+

MP13

R207
C197

R210
1

L22

C235
1 C45 R72 C93 C102 +
R3

L20
R54

1
+
C200 C230 C242 C245 R205

C187
1
C145
R38

R34 V5
C168 C167
R147 R146

C37 R69 C86 C161 1

C250
C171
C27

R12 C16 R35

+
C124 X2 C154 C226
18
1

IC43

9
C61 IC58

29
IC7 C46 R73 C96 L5 MP12 C185 IC53 C209 C234 C237
C228

CO20
C103 R134 1
IC65
C87

1
C118
R4

IC20 N5 +

22
R39 L6 R135 R139
C28

N3 C94 8 1
R57
R36

C62

R197
R24 R40 R75 C104 IC44 IC60
C119

R136
C52 R49

R166
N4
R163
IC68

C191
C162
1
C183
R159

P1
R158

+ 1

C203
IC66

R173
IC4
C5

1
26

C158

N6 R137
L19

1
R20 R55 9
15
R212
P2 C88 R138 IC63 R213
IC16 C63

+
C38 C67 C75

7
L10 C163
R5

C120 L3

15
C17 C29 IC37
29

IC62
R41 IC24
9

40
C6 R9

29 29
R58
40
C73 R65

40

40

C249
18
C18
1

R95

C76+ 1 V1 1
IC45

C246

CO21
C243
3
L4

C240
R42
R131

R201
R59

C247
1

MP2 IC8
18
C44

R27 C47
C172
76

R6 C39 51 R206
R7 C19 C30 R43 C77 C89 IC42 IC49 R208
R28 R44 C53 C68 L1 IC46 IC54
1

C231
C149

R204
1

C7 R13 +
C105 C125 L7 L9 1
L13 R174
9
R209 C251
1

IC9 C40 C54

R200 C241
R8 R14 MP5 C78+
R29 R45
1
C150

1
R222 R94

IC67
1

C69
L33 L2
IC17

C8
R149

18

R192
1

IC69
R30 C48 IC25 7
18

18

1
7 7
1

1
L8

C79
IC38

1
IC64
IC35

R46 R66 C106 R193

C238
R10

C229 C232
R11

C41

R175
R176
R178

R182

R187
X1

R183

R189
VDD

R180
R220
R219

R215
R216
R218
R217
C13

C140

R67 C80
C9

R47 C55
15

C107 R194

8
15

R26 R37 C49 R56 R68 C81 C90 C108 R202 R203 C252
8
9
 2 1

4
1

1
Input
1
TR1 RL8
To Display

RL11
3 4

RL12
GND 2 1

2
RL9

3
2 1

3 4
2 1 RL13

RL10 3 4

3 4

pu10 0007 00005

24 2 24 2
CO15 1 CO9 1
 +

G R B
 R1

3
pu13 0002 0002
R2

pu13 0002 0002

C1 R3

4
1

SW1
CO1

1
C13 TD1
4

R7
N2 N1
C9 N4 N3
R9 R8 N5
N6
R10 C2
1

N7
IC1

N8
C10 C3

1
IC2
N9
C11 R5 R4
R11 C6 C5
1

R12 R6
V1

C12 N10
R13 N11
C7

N12
+ N13
C8

N15 N14
+
D1

1
 CTS goes High when the Instrument has processed the data.

CTS

Packet with Header, Data and control chars.

RxD

DSR

DTR

CTS

Transmission signals. Figure 1

Master/slave communication. Figure 2

Control Codes. Table 1.

 until if
the method is sequence and 6 reflexes recorded.

until if
the method is sequence and 6 reflexes recorded.
Master SI:
Slave:
Master SO:
BOOL OpenPort(int PortNo)
{
CString SettingStr;

SettingStr = "57600,N,8,1";

m_CommControl.SetCommPort(PortNo);

m_CommControl.SetSettings(SettingStr);

m_CommControl.SetHandshaking(2);

m_CommControl.SetPortOpen(TRUE);

m_CommControl.SetRThreshold(1);

return m_CommControl.GetPortOpen();
}

void SendString(CString StringToSend)

{
VARIANT OutString;

OutString.vt = VT_BSTR;

OutString.bstrVal = StringToSend.AllocSysString();

m_CommControl.SetOutput(OutString);
}

CString CTestAA220Dlg::CalculateCRC(CString StringToCalculate)

{
int CRCValue = 0, Counter;
CString CRCString;

for (Counter = 0; Counter < StringToCalculate.GetLength(); Counter++)

CRCValue += StringToCalculate.GetAt(Counter);

sprintf( CRCString.GetBuffer(10) , "%.5d", CRCValue );

StringToCalculate.Insert(StringToCalculate.GetLength()-1, CRCString);

return StringToCalculate;
}

void CTestAA220Dlg::OnOnCommMscomm1()
{
VARIANT InStringVar;
CHAR ch;
DWORD LastPosition;
 switch (m_CommControl.GetCommEvent())
{
case 2: InStringVar = m_CommControl.GetInput();
InString += InStringVar.bstrVal;
LastPosition = InString.GetLength()-1;

ch = InString.GetAt(LastPosition);
if (ch == 4) // The EOT is received
{
// Now deal with the data in the InString

InString.Empty();
}
break;
}
}
 Menu Keywords Figure 15

Save data at menu exit. Figure 16

 Main Setup. Figure 3

Tympanometry Setup. Figure 4

Reflex Test (method is Fixed). Figure 5

Reflex Table. Figure 6

Reflex Test A. Figure 7

Reflex Test B. Figure 8

Reflex Method Fixed. Figure 9

Fixed Reflex. Figure 10

Reflex Method Screening (10 dB Steps). Figure 11

Reflex Method Auto (5 dB). Figure 12

Reflex Method Sequence. Figure 13

Reflex Sequence.Figure 14
Compliance drifting. Figure 15
Reflex Sensitivity in ml. Figure 16

Reflex Sensitivity in %. Figure 177

Audiometry Setup Menu. Figure 18
Manual Audiometry Setup Menu. Figure 19
Test Audiometry Setup Menu. Figure 20.
Common Setup. Figure 21
4 vs. 6 Reflex Icon Boxes. Figure 22
Clinic Setup. Figure 23
 Advanced Reflex User Setup. Figure 20

Positive and Negative reflex display. Figure 21

Advanced Audiometry Setup. Figure 6
EEPROM Menu. Figure 7