AML ez2254 User manual

ez2254 Compressor/Limiter - Assembly manual
[“Colourbook” Issue 1b]

Warning!
This kit has the potential to be connected to, or generate, high voltages and currents, and high localized temperatures that could cause injury or death to the assembler, operator or end user.
This kit is solely intended as study material for aesthetic and educational purposes. However, should the assembled kit be accidentally or deliberately connected to a source of mains electrical power, potentially lethal voltages and currents could exist within the assembled unit.
This kit must only be assembled by a suitably experienced and qualified electrical or electronic engineer under proper supervision and with suitable safety precautions in place. Ensuring the experience and qualifications criteria are fully understood and complied with is the whole responsibility of the assembler.
Ensuring that this unit is not operated in a way which could cause injury or death is wholly the responsibility of the assembler, operator or end user.
In assembling this kit, you are accepting that all the above warnings and necessary qualifications are understood and complied with and the assembly is at your own risk.
Should this unit be accidentally or deliberately connected to a source of mains power, the following precautions should be observed.
High voltages and currents and localized temperatures will be present on many of the components which could cause injury or death. Voltages in excess of 390v dc and 270v ac may exist even after the source of mains power has been removed. These potentially lethal voltages may be present on many of the components for several
minutes after the power source has been removed. Voltages at the appropriate test points should be carefully measured with suitable test equipment to ascertain the safe or unsafe status of the unit. If the unit has been assembled incorrectly, the capacitors may also represent an explosion risk.
General assembly tips.
1] Take your time. (It is a lot quicker to get it right first time than get it wrong and have to perform corrective measures).
2] Use a suitably powerful soldering iron to ensure that the solder flows properly. This is particularly important for the contacts which are attached to the ground plane and the heatsink securing pins.
3] Ensure that the capacitors are fitted the correct way round as reversing their polarity could be potentially hazardous.
4] Don’t overtighten the chassis screws else you will never get them out again.
If in doubt ask !
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herein. Upon any termination or expiration of this Agreement, you must destroy all copies of the Educational Kit and the Documentation. You may terminate this Agreement at any point by destroying all copies of the Educational Kit and the
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expressly set forth hereunder are reserved by Audio Maintenance Limited.
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must return the parts contained within the Educational Kit to Audio Maintenance Limited at your expense with a copy of your receipt. This limited warranty is void if the defect has resulted from accident, abuse, or misapplication. Any replacement parts will be warranted for the remainder of the original warranty period. Outside the United
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c. Warranty Disclaimer. Except for the limited warranty set forth herein, THE EDUCATIONAL KIT IS PROVIDED “AS IS.” TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, AUDIO MAINTENANCE LIMITED DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED
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law.
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hereunder shall be England . The application of the United Nations Convention of Contracts for the International Sale of Goods is expressly excluded. This Agreement sets forth all rights for the user of the Educational Kit and is the
entire agreement between the parties. This Agreement supersedes any other communications with respect to the Educational Kit and Documentation. This Agreement may not be modified except by a written addendum issued by a duly
authorized representative of Audio Maintenance Limited. No provision hereof shall be deemed waived unless such waiver shall be in writing and signed by Audio Maintenance Limited or a duly authorized representative of Audio Maintenance Limited. If any provision of this Agreement is held invalid, the remainder of this Agreement shall
continue in full force and effect. The parties confirm that it is their wish that this Agreement has been written in the English language only.
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Kit Build certificate.
You warrant and represent that neither the United Kingdom Government nor any other United Kingdom Government agency has suspended, revoked or denied your export privileges.
Attention/Disclaimer
Although this kit can be assembled and built into a functioning audio equalizer, due to the high voltages and possibilities of human builder error, Audio Maintenance Limited hereby assumes no liability for injury/damage/ loss which might unintentionally occur.
This manual is for informational purposes only.
Copyright © 2013 Audio Maintenance Limited. All Rights Reserved.

ez2254 “Colourbook” Contents.
Section 1 - “Colourbook” assembly guide
Section 2 - Schematics diagrams and PCB Overlays
Section 3 - Parts List
Section 4 - Setup and Calibration

Revisions 1 to 1a;
PCB Updated to rev 4
ez2254 “Colourbook” revision history
Revisions 1a to 1b;
Change to knob fitting instructions
BC214B becomes BC560C
Transformer screw shortened to 12mm

Interstage2
VTB9046
AML-07-089
AML-07-089
(Rev
(Rev
4)
4)
-
-
2
2
part
part
set
set
Test:
Built:
Date:
S/N:
Test:
Built:
Date:
S/N:
0.5mA 1m A
Met ertype
Output Meter
+8 Threshold
SetGain
SetBias
VTB1847
Comp
Recovery
Limit
Recovery
Limit
In/Out
Limit
Level
Gain
Makeup
Comp
Ratio
G/RMeter
Stereo
Link Output
600R
Te rm i n a t io n
MainsSafetyEarth
Brown
Yellow
Yellow
Black
Orange
Blue
Green
Red
Violet
Brown
CUTOUT
10
11
7
8
9
10
11
eter
Input
VTB9046
Interstage1
VTB9045
AGnd +24v CGnd
115v 230v
VTT2489
M
CompThreshold
Sys
In/Out
Comp
In/Out
er
Select
Comp
Threshold
Input
Thisside
towardsmains filter
Green/
Yellow
Blue
Warning
- HazardousVoltage
Mount on
underside
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
2
3
4
5
6
230
1
2
3
4
5
6
Brown Blue
GreyViolet
Green/
Yellow
White
White
Input
Met
Place a “blob” of solder across the two pads of SW1 for 600 Ohm termination
Place a “blob” of solder across the two pads of SW3 for a 1mA meter
Output Termination and
Meter Type Selection

Interstage2
VTB9046
AML-07-089
AML-07-089
(Rev
(Rev
4)
4)
-
-
2
2
part
part
set
set
Test:
Built:
Date:
S/N:
Test:
Built:
Date:
S/N:
0.5mA 1m A
Met ertype
Output Meter
+8 Threshold
SetGain
SetBias
VTB1847
Comp
Recovery
Limit
Recovery
Limit
In/Out
Limit
Level
Gain
Makeup
Comp
Ratio
G/RMeter
Stereo
Link Output
600R
Te rm i n a t io n
MainsSafetyEarth
Brown
Yellow
Yellow
Black
Orange
Blue
Green
Red
Violet
Brown
CUTOUT
10
11
7
8
9
10
11
eter
Input
VTB9046
Interstage1
VTB9045
AGnd +24v CGnd
115v 230v
VTT2489
M
CompThreshold
Sys
In/Out
Comp
In/Out
er
Select
Comp
Threshold
Input
Thisside
towardsmains filter
Green/
Yellow
Blue
Warning
- HazardousVoltage
Mount on
underside
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
2
3
4
5
6
230
1
2
3
4
5
6
Brown Blue
GreyViolet
Green/
Yellow
White
White
Input
Met
D15, D22, D23, D24 = 1N4001 or 1N4007 (4)
Diodes

Interstage2
VTB9046
AML-07-089
AML-07-089
(Rev
(Rev
4)
4)
-
-
2
2
part
part
set
set
Test:
Built:
Date:
S/N:
Test:
Built:
Date:
S/N:
0.5mA 1m A
Met ertype
Output Meter
+8 Threshold
SetGain
SetBias
VTB1847
Comp
Recovery
Limit
Recovery
Limit
In/Out
Limit
Level
Gain
Makeup
Comp
Ratio
G/RMeter
Stereo
Link Output
600R
Te rm i n a t io n
MainsSafetyEarth
Brown
Yellow
Yellow
Black
Orange
Blue
Green
Red
Violet
Brown
CUTOUT
10
11
7
8
9
10
11
eter
Input
VTB9046
Interstage1
VTB9045
AGnd +24v CGnd
115v 230v
VTT2489
M
CompThreshold
Sys
In/Out
Comp
In/Out
er
Select
Comp
Threshold
Input
Thisside
towardsmains filter
Green/
Yellow
Blue
Warning
- HazardousVoltage
Mount on
underside
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
2
3
4
5
6
230
1
2
3
4
5
6
Brown Blue
GreyViolet
Green/
Yellow
White
White
Input
Met
D5-D14, D16-D21 = BAX16 (16)
Diodes

Interstage2
VTB9046
AML-07-089
AML-07-089
(Rev
(Rev
4)
4)
-
-
2
2
part
part
set
set
Test:
Built:
Date:
S/N:
Test:
Built:
Date:
S/N:
0.5mA 1m A
Met ertype
Output Meter
+8 Threshold
SetGain
SetBias
VTB1847
Comp
Recovery
Limit
Recovery
Limit
In/Out
Limit
Level
Gain
Makeup
Comp
Ratio
G/RMeter
Stereo
Link Output
600R
Te rm i n a t io n
MainsSafetyEarth
Brown
Yellow
Yellow
Black
Orange
Blue
Green
Red
Violet
Brown
CUTOUT
10
11
7
8
9
10
11
eter
Input
VTB9046
Interstage1
VTB9045
AGnd +24v CGnd
115v 230v
VTT2489
M
CompThreshold
Sys
In/Out
Comp
In/Out
er
Select
Comp
Threshold
Input
Thisside
towardsmains filter
Green/
Yellow
Blue
Warning
- HazardousVoltage
Mount on
underside
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
2
3
4
5
6
230
1
2
3
4
5
6
Brown Blue
GreyViolet
Green/
Yellow
White
White
Input
Met
ZD1, ZD2, ZD3, ZD4, ZD5 = 2v7 (5)
Zener Diodes

Interstage2
VTB9046
AML-07-089
AML-07-089
(Rev
(Rev
4)
4)
-
-
2
2
part
part
set
set
Test:
Built:
Date:
S/N:
Test:
Built:
Date:
S/N:
0.5mA 1m A
Met ertype
Output Meter
+8 Threshold
SetGain
SetBias
VTB1847
Comp
Recovery
Limit
Recovery
Limit
In/Out
Limit
Level
Gain
Makeup
Comp
Ratio
G/RMeter
Stereo
Link Output
600R
Te rm i n a t io n
MainsSafetyEarth
Brown
Yellow
Yellow
Black
Orange
Blue
Green
Red
Violet
Brown
CUTOUT
10
11
7
8
9
10
11
eter
Input
VTB9046
Interstage1
VTB9045
AGnd +24v CGnd
115v 230v
VTT2489
M
CompThreshold
Sys
In/Out
Comp
In/Out
er
Select
Comp
Threshold
Input
Thisside
towardsmains filter
Green/
Yellow
Blue
Warning
- HazardousVoltage
Mount on
underside
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
2
3
4
5
6
230
1
2
3
4
5
6
Brown Blue
GreyViolet
Green/
Yellow
White
White
Input
Met
D1, D4 = 1N 4148 Matched Pair (2)
D2, D3 = 1N 4148 Matched Pair (2)
Matched Diodes

Interstage2
VTB9046
AML-07-089
AML-07-089
(Rev
(Rev
4)
4)
-
-
2
2
part
part
set
set
Test:
Built:
Date:
S/N:
Test:
Built:
Date:
S/N:
0.5mA 1m A
Met ertype
Output Meter
+8 Threshold
SetGain
SetBias
VTB1847
Comp
Recovery
Limit
Recovery
Limit
In/Out
Limit
Level
Gain
Makeup
Comp
Ratio
G/RMeter
Stereo
Link Output
600R
Te rm i n a t io n
MainsSafetyEarth
Brown
Yellow
Yellow
Black
Orange
Blue
Green
Red
Violet
Brown
CUTOUT
10
11
7
8
9
10
11
eter
Input
VTB9046
Interstage1
VTB9045
AGnd +24v CGnd
115v 230v
VTT2489
M
CompThreshold
Sys
In/Out
Comp
In/Out
er
Select
Comp
Threshold
Input
Thisside
towardsmains filter
Green/
Yellow
Blue
Warning
- HazardousVoltage
Mount on
underside
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
2
3
4
5
6
230
1
2
3
4
5
6
Brown Blue
GreyViolet
Green/
Yellow
White
White
Input
Met
R79, R82 = 0R (2)
R120 = 1R0 (1)
R121, R131 = 10R (2)
R130, R132, R133 = 15R (3)
Resistors

Interstage2
VTB9046
AML-07-089
AML-07-089
(Rev
(Rev
4)
4)
-
-
2
2
part
part
set
set
Test:
Built:
Date:
S/N:
Test:
Built:
Date:
S/N:
0.5mA 1m A
Met ertype
Output Meter
+8 Threshold
SetGain
SetBias
VTB1847
Comp
Recovery
Limit
Recovery
Limit
In/Out
Limit
Level
Gain
Makeup
Comp
Ratio
G/RMeter
Stereo
Link Output
600R
Te rm i n a t io n
MainsSafetyEarth
Brown
Yellow
Yellow
Black
Orange
Blue
Green
Red
Violet
Brown
CUTOUT
10
11
7
8
9
10
11
eter
Input
VTB9046
Interstage1
VTB9045
AGnd +24v CGnd
115v 230v
VTT2489
M
CompThreshold
Sys
In/Out
Comp
In/Out
er
Select
Comp
Threshold
Input
Thisside
towardsmains filter
Green/
Yellow
Blue
Warning
- HazardousVoltage
Mount on
underside
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
2
3
4
5
6
230
1
2
3
4
5
6
Brown Blue
GreyViolet
Green/
Yellow
White
White
Input
Met
R129 = 24R (1)
R128 = 33R (1)
R42 = 47R (1)
R94 = 39R (1)
Resistors

Interstage2
VTB9046
AML-07-089
AML-07-089
(Rev
(Rev
4)
4)
-
-
2
2
part
part
set
set
Test:
Built:
Date:
S/N:
Test:
Built:
Date:
S/N:
0.5mA 1m A
Met ertype
Output Meter
+8 Threshold
SetGain
SetBias
VTB1847
Comp
Recovery
Limit
Recovery
Limit
In/Out
Limit
Level
Gain
Makeup
Comp
Ratio
G/RMeter
Stereo
Link Output
600R
Te rm i n a t io n
MainsSafetyEarth
Brown
Yellow
Yellow
Black
Orange
Blue
Green
Red
Violet
Brown
CUTOUT
10
11
7
8
9
10
11
eter
Input
VTB9046
Interstage1
VTB9045
AGnd +24v CGnd
115v 230v
VTT2489
M
CompThreshold
Sys
In/Out
Comp
In/Out
er
Select
Comp
Threshold
Input
Thisside
towardsmains filter
Green/
Yellow
Blue
Warning
- HazardousVoltage
Mount on
underside
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
2
3
4
5
6
230
1
2
3
4
5
6
Brown Blue
GreyViolet
Green/
Yellow
White
White
Input
Met
R127 = 56R (1)
R143 = 68R (1)
R85 = 91R (1)
R126 = 82R (1)
Resistors

Interstage2
VTB9046
AML-07-089
AML-07-089
(Rev
(Rev
4)
4)
-
-
2
2
part
part
set
set
Test:
Built:
Date:
S/N:
Test:
Built:
Date:
S/N:
0.5mA 1m A
Met ertype
Output Meter
+8 Threshold
SetGain
SetBias
VTB1847
Comp
Recovery
Limit
Recovery
Limit
In/Out
Limit
Level
Gain
Makeup
Comp
Ratio
G/RMeter
Stereo
Link Output
600R
Te rm i n a t io n
MainsSafetyEarth
Brown
Yellow
Yellow
Black
Orange
Blue
Green
Red
Violet
Brown
CUTOUT
10
11
7
8
9
10
11
eter
Input
VTB9046
Interstage1
VTB9045
AGnd +24v CGnd
115v 230v
VTT2489
M
CompThreshold
Sys
In/Out
Comp
In/Out
er
Select
Comp
Threshold
Input
Thisside
towardsmains filter
Green/
Yellow
Blue
Warning
- HazardousVoltage
Mount on
underside
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
2
3
4
5
6
230
1
2
3
4
5
6
Brown Blue
GreyViolet
Green/
Yellow
White
White
Input
Met
R119, R125 = 120R (2)
R174 = 130R (1)
R173 = 150R (1)
R172 = 200R (1)
Resistors

Interstage2
VTB9046
AML-07-089
AML-07-089
(Rev
(Rev
4)
4)
-
-
2
2
part
part
set
set
Test:
Built:
Date:
S/N:
Test:
Built:
Date:
S/N:
0.5mA 1m A
Met ertype
Output Meter
+8 Threshold
SetGain
SetBias
VTB1847
Comp
Recovery
Limit
Recovery
Limit
In/Out
Limit
Level
Gain
Makeup
Comp
Ratio
G/RMeter
Stereo
Link Output
600R
Te rm i n a t io n
MainsSafetyEarth
Brown
Yellow
Yellow
Black
Orange
Blue
Green
Red
Violet
Brown
CUTOUT
10
11
7
8
9
10
11
eter
Input
VTB9046
Interstage1
VTB9045
AGnd +24v CGnd
115v 230v
VTT2489
M
CompThreshold
Sys
In/Out
Comp
In/Out
er
Select
Comp
Threshold
Input
Thisside
towardsmains filter
Green/
Yellow
Blue
Warning
- HazardousVoltage
Mount on
underside
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
2
3
4
5
6
230
1
2
3
4
5
6
Brown Blue
GreyViolet
Green/
Yellow
White
White
Input
Met
R33, R48, R97, R111, R124 = 220R (5)
R171 = 240R (1)
R19, R46, R57, R117 = 270R (4)
R123, R150, R170 = 330R (3)
Resistors

Interstage2
VTB9046
AML-07-089
AML-07-089
(Rev
(Rev
4)
4)
-
-
2
2
part
part
set
set
Test:
Built:
Date:
S/N:
Test:
Built:
Date:
S/N:
0.5mA 1m A
Met ertype
Output Meter
+8 Threshold
SetGain
SetBias
VTB1847
Comp
Recovery
Limit
Recovery
Limit
In/Out
Limit
Level
Gain
Makeup
Comp
Ratio
G/RMeter
Stereo
Link Output
600R
Te rm i n a t io n
MainsSafetyEarth
Brown
Yellow
Yellow
Black
Orange
Blue
Green
Red
Violet
Brown
CUTOUT
10
11
7
8
9
10
11
eter
Input
VTB9046
Interstage1
VTB9045
AGnd +24v CGnd
115v 230v
VTT2489
M
CompThreshold
Sys
In/Out
Comp
In/Out
er
Select
Comp
Threshold
Input
Thisside
towardsmains filter
Green/
Yellow
Blue
Warning
- HazardousVoltage
Mount on
underside
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
2
3
4
5
6
230
1
2
3
4
5
6
Brown Blue
GreyViolet
Green/
Yellow
White
White
Input
Met
R28, R89, R92, R151, R169 = 390R (5)
R13, R18, R41, R67, R72, R96, R106, R152 = 470R (8)
R168 = 510R (1)
R30, R108, R153 = 560R (3)
Resistors

Interstage2
VTB9046
AML-07-089
AML-07-089
(Rev
(Rev
4)
4)
-
-
2
2
part
part
set
set
Test:
Built:
Date:
S/N:
Test:
Built:
Date:
S/N:
0.5mA 1m A
Met ertype
Output Meter
+8 Threshold
SetGain
SetBias
VTB1847
Comp
Recovery
Limit
Recovery
Limit
In/Out
Limit
Level
Gain
Makeup
Comp
Ratio
G/RMeter
Stereo
Link Output
600R
Te rm i n a t io n
MainsSafetyEarth
Brown
Yellow
Yellow
Black
Orange
Blue
Green
Red
Violet
Brown
CUTOUT
10
11
7
8
9
10
11
eter
Input
VTB9046
Interstage1
VTB9045
AGnd +24v CGnd
115v 230v
VTT2489
M
CompThreshold
Sys
In/Out
Comp
In/Out
er
Select
Comp
Threshold
Input
Thisside
towardsmains filter
Green/
Yellow
Blue
Warning
- HazardousVoltage
Mount on
underside
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
2
3
4
5
6
230
1
2
3
4
5
6
Brown Blue
GreyViolet
Green/
Yellow
White
White
Input
Met
R103, R154 = 620R (2)
R122, R155, R166, R167 = 680R (4)
R156 = 750R (1)
R34, R157 = 820R (2)
Resistors

Interstage2
VTB9046
AML-07-089
AML-07-089
(Rev
(Rev
4)
4)
-
-
2
2
part
part
set
set
Test:
Built:
Date:
S/N:
Test:
Built:
Date:
S/N:
0.5mA 1m A
Met ertype
Output Meter
+8 Threshold
SetGain
SetBias
VTB1847
Comp
Recovery
Limit
Recovery
Limit
In/Out
Limit
Level
Gain
Makeup
Comp
Ratio
G/RMeter
Stereo
Link Output
600R
Te rm i n a t io n
MainsSafetyEarth
Brown
Yellow
Yellow
Black
Orange
Blue
Green
Red
Violet
Brown
CUTOUT
10
11
7
8
9
10
11
eter
Input
VTB9046
Interstage1
VTB9045
AGnd +24v CGnd
115v 230v
VTT2489
M
CompThreshold
Sys
In/Out
Comp
In/Out
er
Select
Comp
Threshold
Input
Thisside
towardsmains filter
Green/
Yellow
Blue
Warning
- HazardousVoltage
Mount on
underside
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
2
3
4
5
6
230
1
2
3
4
5
6
Brown Blue
GreyViolet
Green/
Yellow
White
White
Input
Met
R142 = 910R (1)
R38, R104, R165 = 1k0 (3)
R65, R164 = 1k2 (2)
R3, R69, R74, R102, R107 = 1k5 (5)
Resistors

Interstage2
VTB9046
AML-07-089
AML-07-089
(Rev
(Rev
4)
4)
-
-
2
2
part
part
set
set
Test:
Built:
Date:
S/N:
Test:
Built:
Date:
S/N:
0.5mA 1m A
Met ertype
Output Meter
+8 Threshold
SetGain
SetBias
VTB1847
Comp
Recovery
Limit
Recovery
Limit
In/Out
Limit
Level
Gain
Makeup
Comp
Ratio
G/RMeter
Stereo
Link Output
600R
Te rm i n a t io n
MainsSafetyEarth
Brown
Yellow
Yellow
Black
Orange
Blue
Green
Red
Violet
Brown
CUTOUT
10
11
7
8
9
10
11
eter
Input
VTB9046
Interstage1
VTB9045
AGnd +24v CGnd
115v 230v
VTT2489
M
CompThreshold
Sys
In/Out
Comp
In/Out
er
Select
Comp
Threshold
Input
Thisside
towardsmains filter
Green/
Yellow
Blue
Warning
- HazardousVoltage
Mount on
underside
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
2
3
4
5
6
230
1
2
3
4
5
6
Brown Blue
GreyViolet
Green/
Yellow
White
White
Input
Met
R15, R31, R50, R87, R90 = 1k8 (5)
R27, R49, R53, R71, R76, R105, R115 = 2k2 (7)
R9, R20, R23, R99, R149 = 2k7 (5)
R47, R63, R141 = 3k3 (3)
Resistors

Interstage2
VTB9046
AML-07-089
AML-07-089
(Rev
(Rev
4)
4)
-
-
2
2
part
part
set
set
Test:
Built:
Date:
S/N:
Test:
Built:
Date:
S/N:
0.5mA 1m A
Met ertype
Output Meter
+8 Threshold
SetGain
SetBias
VTB1847
Comp
Recovery
Limit
Recovery
Limit
In/Out
Limit
Level
Gain
Makeup
Comp
Ratio
G/RMeter
Stereo
Link Output
600R
Te rm i n a t io n
MainsSafetyEarth
Brown
Yellow
Yellow
Black
Orange
Blue
Green
Red
Violet
Brown
CUTOUT
10
11
7
8
9
10
11
eter
Input
VTB9046
Interstage1
VTB9045
AGnd +24v CGnd
115v 230v
VTT2489
M
CompThreshold
Sys
In/Out
Comp
In/Out
er
Select
Comp
Threshold
Input
Thisside
towardsmains filter
Green/
Yellow
Blue
Warning
- HazardousVoltage
Mount on
underside
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
2
3
4
5
6
230
1
2
3
4
5
6
Brown Blue
GreyViolet
Green/
Yellow
White
White
Input
Met
R37, R43, R44, R144, R159 = 3k9 (5)
R32 = 4k7 (1)
R17, R78, R83 = 5k1 (3)
R56 = 6k8 (1)
Resistors

Interstage2
VTB9046
AML-07-089
AML-07-089
(Rev
(Rev
4)
4)
-
-
2
2
part
part
set
set
Test:
Built:
Date:
S/N:
Test:
Built:
Date:
S/N:
0.5mA 1m A
Met ertype
Output Meter
+8 Threshold
SetGain
SetBias
VTB1847
Comp
Recovery
Limit
Recovery
Limit
In/Out
Limit
Level
Gain
Makeup
Comp
Ratio
G/RMeter
Stereo
Link Output
600R
Te rm i n a t io n
MainsSafetyEarth
Brown
Yellow
Yellow
Black
Orange
Blue
Green
Red
Violet
Brown
CUTOUT
10
11
7
8
9
10
11
eter
Input
VTB9046
Interstage1
VTB9045
AGnd +24v CGnd
115v 230v
VTT2489
M
CompThreshold
Sys
In/Out
Comp
In/Out
er
Select
Comp
Threshold
Input
Thisside
towardsmains filter
Green/
Yellow
Blue
Warning
- HazardousVoltage
Mount on
underside
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
2
3
4
5
6
230
1
2
3
4
5
6
Brown Blue
GreyViolet
Green/
Yellow
White
White
Input
Met
R114, R162 = 8k2 (2)
R81, R112, R116, R138, R140, R175 = 10k (6)
R10 = 12k (1)
R8, R11, R21, R22, R29, R101, R158 = 15k (7)
Resistors