Interacoustics AC40 Service Manual

AC40 Service Manual Page 21
Schematics
Block Diagram
TDM
codec
Output Att .
+20 -100 dB
Fix Att.
0-25 dB
Ext .
Ranges
+20 dB
TDH39
TDH 50
DD 45
Input
switch
Ch1
Input Att .
+30 -100 dB
Input Att .
+30 -100 dB
Talk Forward
Mic 1 Int
Mic 2
CD 1
CD 2
EAR 3A
EAR 5A
Bone
1
Stereo
Monitor
Headset
Output DAC C h 1 Fix Att. Ch1
Output Sw Ch 1
Output Sw Ch 2
Output Sw Ch 3
Input DAC Ch 2
Input DAC Ch 1
Input Sw Ch 1
Input Sw Ch 2
Output
switch
Ch1
Output
switch
Ch2
Output
switch
Ch3
Output
switch
Ch4
Input
switch
Ch2
2*Mono
2*Mono
Phone
Insert
TDM Serial
SD
card
Socket
SPI
Flash
Reset
DSP
Flash
DDR
Ram
USB Device
Pat . R.
2
USB Host
SPI
IRQ CPU
IRQ DSP
Pat . R.
1
B71
Author
Current revision
File Location
AC40 BlockDiagram
AC40 block di agram
Document Nam e
Proj ect Name
Revision date
Ib Pedersen
2.0
08-06 -2012
D-0100718
Input Ch 1-2
select
Fix Att. Ch1-2
code
Output Ch 1-2
code
Input Ch 3-4
Select
Mute Ch 1-2
FF1-2 Line
Fix Att Ch3 -4
Code
Output Ch 3-4
Code
Mute Ch 3-4
FF3-4 Line
SPI DAC 1
DSP
SPI
CS
FLag 20
FLag 21
FLag 22
SPI Row 1
SPI Row 0
SPI Row 2
SPI Codec
Stereo
Assistent
Headset
Phone - HF
HDA200
2*Mono
+20dB Ch 1
Output Sw Ch 4
8
channel
DAC
Att . Ch1 Output DAC
Att . Ch2 Output DAC
Att . Ch4 Output DAC
Att . Ch3 Output DAC
Att. Ch1 Intput DAC
Att . Ch2 Intput DAC
Att . Ch3 Intput DAC
SPI Keyboard
matrix /
encoder s
Display
600 *800
SPI
Key Led ctrl
Keyboard
Ext. Keyboard
Ext . Mouse
Laptop -PC
HUB
USB Host 1
USB Host 4
CPU
SPI
CS
SD
RAM
FLag 20
FLag 21
FLag 22
Real
time
clock
Input
110 -240 V
Power supply
Talk Forward
Mic 1 Ext
FF 1
Power
HDMI
Att . Ch4 Intput DAC
CD
Monitor
LSP 1
Left
Right
Phone 2 L
Phone – HF R
Phone 1 R
Phone - HF L
Inser t L
Insert R
Insert / HF
Phone 1/2 –
Insert / HF
FF1
20 W
FF1
Line
FF1 Line
FF 2
Power
FF2
20 W
FF2
Line
FF2 Line
FF2 P
FF1-2
FF1 P
Talk Back Mic
Monitor Ch 1
Monitor Ch 2
Output Ch 1
Output Ch 2
Output Ch 3
Output Ch 4
Input Ch 1
Input Ch 2
Input Ch 3
Input Ch 4
Output Ch 5
Output Ch 6
Input
switch
Ch3
Input Att .
+30 -100 dB
Input DAC Ch 3
Input Sw Ch 3
Input
switch
Ch4
Input Att .
+30 -100 dB
Input DAC Ch 4
Input Sw Ch 4
Mute
Mute Ch 1
Output Att .
+20 -100 dB
Fix Att.
0-25 dB
Ext .
Ranges
+20 dB
Output DAC C h 2 Fix Att. Ch2 +20dB C h 2
Mute
Mute Ch 2
Output Att .
+20 -100 dB
Fix Att.
0-25 dB
Ext .
Ranges
+20 dB
Output DAC C h 3 Fix Att. Ch3 +20dB C h 3
Mute
Mute Ch 3
Output Att .
+20 -100 dB
Fix Att.
0-25 dB
Ext .
Ranges
+20 dB
Output DAC C h 4 Fix Att. Ch4 +20dB C h 4
Mute
Mute Ch 4
FF 3
Power
FF3
20 W
FF3
Line
FF3 Line
FF 4
Power
FF4
20 W
FF4
Line
FF4 Line
FF4 P
FF3 -4
FF3 P
Bone
2
B71
Bone
1
Bone
2
Insert
Masking
Ins
M
Phone 1 L
Phone 2 R
Phone 1/2
+
+
Master
Volum e
Master
Volum e
Input Ch 4
Input Ch 4
Input Ch 3
Input Ch 2
Input Ch 1
Input Ch 4
Input Ch 4
Input Ch 4
+
+
Monitor
LSP 2
Reset
Mon Input FF3-4 Pwr
Mon Ass
Ch1/Ch2
SPI Codec
Option
off
LAN
Unik
ID
HDMI
CPU
CPU SPI in
LVDS
Ext. Power
FF. Control
Ext. FF
0.5A
Ext . FF Ctrl
5V

Interacoustics AC40 Specifications

General

Brand	Interacoustics
Model	AC40
Category	Measuring Instruments
Language	English