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Interacoustics AC40 Service Manual
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AC
40 Service M
anual
A
ppendix A
Page
1
Ap
pendix A
Update New
s
Follow
ing modifications are
made for manual version 8100837 Rev 2
instruments
from 10/2013
M
inor visual changes to manual format
67
Table of Contents
Default Chapter
1
Service Manual
1
Table of Contents
2
Contents
3
General Information
3
Survey of Reference and Max Hearing Level Tone Audiometer
4
ANSI Free Field
9
IEC Free Field
9
Survey of Reference and Max Hearing Level Speech Audiometer
10
Swedish Speech Calibration
12
Norwegian Speech Calibration
13
Equivalent Free Field
14
General Properties for Earphones
14
Accessories and Parts
16
Accessories
16
Consumables and Parts
19
Schematics
21
Disassembly
22
Open the Cabinet
22
Remove the PCA Back Board and Side Board
23
Remove the Power Supply
24
Remove the Display
25
Adjusting the Knobs after Reassembly
26
Calibration Procedure
28
Service, Adjustment and Repair
28
Phasing of Headphones
29
Calibration of Test Equipment
29
Calibration Mode Entering
29
Checklist for Calibration
30
Calibration Standard for Audiometer
31
Selecting TDH39 Headset
32
Selecting DD45 Headset
36
Selecting HDA200 Headset
39
Selecting HDA280 Headset
43
Selecting EAR3A Insert Phone
47
Selecting EAR5A Insert Phone
50
Selecting CIR22/CIR33 Insert Masking Transducer
54
Selecting B71 Bone Transducer
57
Calibration Procedure Free Field and Custom Max
60
Select Free Field Setup
61
Custom Max
62
Transducer Calibration
64
Update Procedure - Firmware
65
Installing MHA (Master Hearing Aid) Wave Files
65
AC40 Stand Alone Unit, Print Logo Update
65
Appendix A Update News
68
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Interacoustics AC40 Specifications
General
Brand
Interacoustics
Model
AC40
Category
Measuring Instruments
Language
English
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