AML ez1073pre - Page 39

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Audio Maintenance Limited
E-Mail: service@audiomaintenance.com
C Adshead
ez1073-pre
AML-07-120
1 of 1
API References
-16v DC;
+16v DC;
Analogue Ground;
PSU Common;
Chassis Ground;
Output HI;
Output LO;
Input HI;
Input LO;
Pin 1
Pin 2
Pin 4
Pin 5
Pin 8
Pin 10
Pin 12
Pin 13
Pin 14
+48v DC; Pin 15
VTB9045
Orange
Yellow
Brown
Red
Violet
Green
Blue
Black
0
0
Input Hi - Pin 10
0
0
Chassis
Ground
Analogue
Ground
+48v DC; Pin 15
Input Lo - Pin 8
+16v pin 12
AGnd
48v
LoZ
Input Transformer Sub Assembly
with mechanical support PCB
Output Hi - Pin 2
Output Lo - Pin 4
Chassis
Ground
VTB2569
Phase
Switch PCB Main PCB
Switch PCB
Main PCB
Violet
Blue
Sub - Violet
Sub - Blue
Post Phase Hot
Post Phase Cold
Sub - Post Phase Hot
Sub - Post Phase Cold
Sub - Agnd
Agnd
Agnd
Agnd
Agnd
Sub - Agnd
Sub - Agnd
Sub - Agnd
Sub +48v
Sub +48v switched
SUB +48v LED switched
SUB +16v pin 12
Sub - Post Pad Hot
Sub - Post Pad Cold
Sub - Agnd
Input Tx paralleled cold
Sub - Input Tx paralleled hot
+48v pin 15
+48v switched
+48v LED switched
+16v pin 12
Post Pad Hot
Post Pad Cold
Input Tx paralleled cold
Input Tx paralleled hot
AML-07-120 - rev3
9th Nov. 2017
3
SUB +16v pin 12
+16v pin 12
AGnd
-16v DC
Pin 14
+16v DC
Pin 12
Analogue Ground
Pin 5
PSU Common
Pin 13
Chassis Ground
Pin 1
AGnd
Gain Stage 1 Input
Gain Stage 1 Output
Gain Stage 1 Input
Gain Stage 1 Output
V Stage 3 +
V Stage 2 +
V Stage 1 +
V Ref Neg
V Stage 1 +
V Stage 3 +
V Ref Pos
Increasing Gain Increasing Gain
Increasing Gain
Agnd
Agnd
Gain Stage 2 Output
V Stage 2 + Agnd
Agnd
Gain Stage 2 Input
Gain Stage 2 Boost
Gain Stage 1 Boost
V Ref Neg
V Ref Neg
Gain Stage Sub Assembly
Gain Stage Sub Assembly
Agnd
Output Stage Sub Assembly
V Ref Pos
V Ref Neg
V Ref Neg
Surge Control Sub Assembly
TP1 TP2