ALLEN&HEATH
WARNING – HIGH VOLTAGES
Power Supply Unit (PSU) work should only
be carried out by qualified personnel.
We recommend that you use an approved Allen & Heath
service centre for all power supply work.
Please contact your local Allen & Heath distributor for more details.
http://www.allen-heath.com/
RPS14
Linear Console Power Supply
SERVICE INFORMATION
Publication AP5717
Introduction
This publication provides technical information on servicing the Allen & Heath RPS14 Linear
Console Power Supply. Included are internal layout drawing and circuit schematics with board
layouts and spare parts information. Whilst we believe this information to be reliable we do not
assume responsibility for inaccuracies. We also reserve the right to make changes in the interest
of further product development.
Additional Resources
Allen & Heath web site www.allen-heath.com Product information
Technical downloads
Distribution contacts
Company contacts
Technical support support@allen-heath.com
See web for local contact
RPS14 User Guide AP5716 Operating instructions
Performance specification
RPS14 Service Information
Issue status: rps14_ap5717_1.doc
Print date: 07 January 2005
Copyright © 2005 Allen & Heath. All rights reserved
Manufactured in the United Kingdom by Allen & Heath
Kernick Industrial Estate, Penryn, Cornwall, TR10 9LU, UK
http://www.allen-heath.com
2 rps14_ap5717_1.doc
Servicing Precautions – General Notes
Service personnel: Service work should be carried out by technically qualified service personnel
only. Mains power is dangerous and can kill. Do not attempt to work on a
linear or switched mode power supply if you are not suitably qualified to do
so. Do not attempt to repair surface mount circuit assemblies unless you are
suitably qualified and have the necessary facilities to do so. Replacement
circuit assemblies can be ordered.
Service facilities: Ensure a suitably sized work surface is available. Ensure this is clear of dirt,
debris and obstructions which may damage the equipment surfaces. Ensure
adequate lighting. Use the correct tools for the job and ensure they are in
good working order. Ensure all workshop safety requirements are adhered
to.
Service information: Check that you have all the information you need before starting the service
job. Refer to the Allen & Heath web site or contact Allen & Heath technical
support for details on the latest information. Full technical information can
be downloaded from the web site Distributor Zone (password required).
Mains power: Connect the equipment to mains power only of the type described in the
user guide and marked on the rear panel. The power source must provide a
good ground connection. Ensure you always use an isolation transformer
when working on any mains power supply unit.
Mains cord and fuse: Use the correct power cord as supplied with the equipment. Do not remove
or tamper with the ground connection in the power cord. Heed the
Important Mains Plug Wiring Instructions printed in the user guide if it is
necessary to rewire the mains cord. Always replace the equipment mains
fuse with the correct type and rating as described in the user guide and
marked on the equipment panel.
Opening the unit: Switch off and remove the mains power cord before opening the equipment.
Ensure all power supply covers and safety shields are in place before
applying power with the unit open for diagnostic fault finding.
Closing the unit: Before finishing, check the quality and accuracy of the service work carried
out. Remove any dirt or debris as this may cause equipment failure in the
future. Ensure all assemblies, harnesses and connectors are correctly
aligned and plugged in. Ensure that jumper settings and control
configurations are correctly set according to the requirements of the
customer.
Testing the unit: Before operating the equipment, read and adhere to the Important Safety
Instructions printed in the user guide. Test that the service work has been
successfully carried out.
Shipping the unit: Use adequate packing such as the original packaging or purpose designed
flight case if you need to ship the unit. To avoid injury to yourself or damage
to the equipment take care when lifting, moving or carrying the equipment.
rps14_ap5717_1.doc 3
Servicing Notes – RPS14
User maintenance: There are no user serviceable parts inside the unit. It should be serviced by
suitably qualified personnel only.
Technology:
The RPS14 uses conventional thru-hole PCB technology.
Operation:
The RPS14 can be set to operate at a different mains voltage by performing
See document rps14_mains_voltage_setting.pdf for details.
To test the Power Supply Unit, make sure it is connected as described in the
user guide. Check that the voltage setting marked on the rear panel is
correct for the local mains supply.
an internal wiring modification.
Fault Finding
Should the Power Supply Unit fail to work correctly, check the following components first:
Mains Fuse
The AC mains fuse is located on the rear of the RPS14 unit next to the AC mains connector. In the event of a
mains surge or under-rated fuse value, the fuse will rupture. Switch off the power supply and remove the mains
lead plug from the “MAINS INPUT” socket on the rear of the unit. Check the fuse and replace if necessary.
TO AVOID THE RISK OF FIRE REPLACE FUSE WITH THE CORRECT TYPE ONLY, AS INDICATED
ON THE UNIT.
AC~ mains input voltage Fuse type
100V – 120V ± 10%
220V – 240V ± 10%
T 10A 250V 20mm
T 8A 250V 20mm
Internal DC Rail Fuses
Each DC supply rail (+17V, -17V, +12V and +48V) is protected by its own fuse. These fuses are mounted on
the main PCB. See the internal layout drawing for the locations, values and part numbers of these fuses. Check
these fuses to see if any have blown.
Cooling Fan
Check that the cooling fan is operating correctly, and that the ventilation holes are not blocked with dust or other
debris which could cause the unit to overheat and stop working. Note that if the RPS14 is suffering an
overheating problem, firstly the “HI TEMP” LED on the front panel will illuminate, then the unit will enter “protect”
mode and shut off the supply. Clear any dust from the ventilation holes using a vacuum cleaner and dry, lint
free cloth. Do not use liquid cleaners or compressed air to clean the unit. If the fan is not operating correctly or
if it becomes noisy it must be replaced.
Transformer
A non-functioning power supply unit may be caused by a failed transformer. Refer the transformer wiring
information in document rps14_transformer_2.pdf and check that the correct secondary voltages are reaching
the main PCB.
4 rps14_ap5717_1.doc
Contents Log
Internal Layout drawing ..................................................rps14_layout_1.pdf
Surface and Main Parts.................................................... rps14_parts_1.pdf
Main PCB ...........................................................rps14_003-253_main_c.pdf
.........................................................................rps14_003-253_main_1.1.pdf
Transformer Wiring Information .............................rps14_transformer_2.pdf
Mains Voltage Setting .............................. rps14_mains_voltage_setting.pdf
Engineering Change Notes ..............................................rps14_ecns_1.pdf
rps14_ap5717_1.doc 5
RPS14 – Historical Change Log
The following list identifies historical changes to the RPS14. The effective dates, serial numbers and
related change note documentation are included for reference to help identify the correct issue circuit
boards and components. Whilst we believe this information to be reliable we do not assume responsibility
for inaccuracies. We also reserve the right to make changes in the interest of further product
development.
Assembly Description
003-253
003-253
003-253
Main PCB up-issue + transformer change
Resistor value changes
Diode hole size change, PCB now Iss 1.1
From Serial
Number
-
001033
-
Date
- -
05/07/04 1049
02/12/04 1102
Change Note
Number
6 rps14_ap5717_1.doc
RPS14 Internal Layout
Product ................................ RPS14/100
............................................ RPS14/120
............................................ RPS14/220
............................................ RPS14/240
SUB 1 PCB
FAN
AM4474
FUSE F1
AL8154
FUSE F2
AL8154
FUSE F4
AL0395
FUSE F3
AL0466
FUSE F5
AL0487
or
AL3455*
SUB 2 PCB
TRANSFORMER
AM5702**
..............................................................
Main Assembly ......................... 003-251
Pack Assembly......................... 003-252
PCB Assembly ......................... 003-253
..............................................................
Fuse 20mm 6.3A A/Surge ......... AL0395
Fuse 20mm 1.6A A/Surge ......... AL0466
Fuse 20mm 8A A/Surge ............ AL0487
Fuse 20mm 10A A/Surge .......... AL3455
Fuse 20mm 16A A/Surge .......... AL8154
Cooling Fan 80mm 12V............ AM4474
Transformer.............................. AM5702
MAIN PCB
003-253
* Fuse F5 = 10A for 100-120V AC operation, 8A for 220-240V AC operation
** Changes to the transformer wiring were made when the main PCB was up-issued form AG5554_C to AG5554_1. If ordering a replacement transformer, be sure to check
and quote the PCB issue number (printed on the board).
rps14_layout_1.doc Sheet 1 of 1
RPS14
AL3893
CONSOLE PSU
AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR.
CAUTION: FOR CONTINUED PROT ECTION AGAINST RISK OF FIRE REPLACE FUSE
WITH SAME TYPE AND RATING. DISCONNECT SUPPLY BEFORE CHANGING FUSE.
ATTENTION: REMPLACER LE FUSIBLE AVEC UN DES MEMES CARACTERISTIQUES.
COUPER L'ALIMENTATION AVANT DE CHANGER LE FUSIBLE.
V AC ~ 47- 63 Hz
525W MAX
S/No
MADE IN ENGLAND
M3x10 SCREW AB0076
RPS14 Surface Parts
HI TEMP
RED LEDAE0086
CAUTION
MAINS IEC AL3179 80MM 12V FAN AM4474
+/-17V
MAINS INPUT
+12V
GREEN LED AE0085
DO NOT OBSTRUCT VENTILATION OPENINGS.
DO NOT OPEN. NO USER SERVICEABLE PARTS INSIDE.
THIS APPARATUS MUST BE EARTHED BY THE POWER CORD.
WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK
DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.
+48V
2BA TERMINAL POST AL8106 M4x8 SCREWAB0332
FUSE
T10A L 250V 20mm
T8A L 250V 20mm 220-240V~
FUSE HOLDER AL3178
8A FUSE AL0487 or
10A FUSE AL3455
M3x5 SCREW AB4661
AC SUPPLYFUSE TYPE
100-120V~
CHASSIS
GROUND
80MM FAN GUARD AA5719
ALLEN&HEATH
AUTO COMBINING LINEAR TECHNOLOGY
M8x65 SCREW AB5203
ALLEN&HEATH
LONG(2.9m) DC POWER CABLE 002-583
SHORT (0.75m) DC POWER CABLE 002-584
RPS14
POWER ON
FAST FEET AK0102
CONSOLE PSU
DC POWER IN (OUT 2)DC POWER OUT 1
TO CONSOLE
MAIN
REDUNDANT
ON
OFF
COMBINING
SUPPLIES
MAINS ROCKER SWITCHAL0587
7WAY PLUG AL3891
rps14_parts_1.doc Sheet 1 of 1
CN1
003-253 iss.1
1/4 INCH BLADE TERMINAL
CN2
e
1/4 INCH BLADE TERMINAL
CN3
1/4 INCH BLADE TERMINAL
d
FUSE HOLDER 20MM SCHURTER CLIPS
F1
1 2
C6
100N 100V/MLC
D1
1N4002
23
BR1
BR RECTIFIER (AE3921)
R21
R20
3K3
3K3
R22
3K3
14
R23
3K3
R67
4K7
C10
10,000/35
C2
470/35 LESR
C11
10,000/35
C12
10,000/35
C4
100N 100V/MLC
R1
4K7
6
5
C8
100/25
12
VREF
NI
7
R7
1K0
V+
U2
UA723CN
V-
11
VO
VC
VZ
INV
13
R28
2K2 1%
CL
CS
COMP
Q5
BC549
+VA
10
9
2
3
4
C16
470P/DISK
+V_TO_U6
C20
100/25
Q1
MJE340
R9
270R
R30
10K
Q3
2SC3264
R14
0R22 4W
R2
1K5 1%
1 3
R36
1K0
VR1
PR VA 1K0
2
R15
0R22 4W
R3
NF RES
R16
0R22 4W
C7
NF CAP RAD 0.200/0.300
D2
BYW81P-200
C35
100/25
R38
3K3
CN12
1/4 INCH BLADE TERMINAL
+VA
R33
100K
6
BASE
5
COLL
4
EMIT
CN13
1/4 INCH BLADE TERMINAL
+17.5V
U4
4N35
AN
K
NC
0V
PROTECT
R49
47K
Q10
BC549
D8
BZX85C18
1
2
3
LD1
LED T1 3MM GREEN
C34
47/25
R32
100K
D3
1N4002
c
b
CN4
1/4 INCH BLADE TERMINAL
FUSE HOLDER 20MM SCHURTER CLIPS
CN5
1/4 INCH BLADE TERMINAL
CN6
1/4 INCH BLADE TERMINAL
F2
1 2
100N 100V/MLC
C26
23
BR2
BR RECTIFIER (AE3921)
R25
R24
3K3
3K3
R26
3K3
14
R27
3K3
R68
4K7
C13
10,000/35
C3
470/35 LESR
C14
10,000/35
C15
10,000/35
C5
100N 100V/MLC
R4
4K7
C9
100/25
6
5
12
VREF
NI
7
R8
1K0
V+
U3
UA723CN
V-
+VB
11
VO
VC
VZ
INV
13
R29
2K2 1%
CL
CS
COMP
Q6
BC549
10
9
2
3
4
C17
470P/DISK
C21
100/25
Q2
MJE340
R13
270R
R31
10K
R35
100K
Q4
2SC3264
R17
0R22 4W
R5
1K5 1%
1 3
R37
1K0
VR2
PR VA 1K0
2
R18
R19
0R22 4W
0R22 4W
NF CAP RAD 0.200/0.300
R6
NF RES
C30
D4
BYW81P-200
C37
100/25
R58
0R0
+VB
R34
100K
6
5
4
CN14
1/4 INCH BLADE TERMINAL
4N35
BASE
COLL
EMIT
U5
AN
K
NC
-17.5V
1
2
3
a
ALLEN&HEATH
Kernick Industrial Estate,
Penryn, Cornwall,
England. TR10 9LU
+44 (0)8707 556250
Tel:
+44 (0)8707 556251
Fax:
ABCDEFGH
ISSUE BY DATE
C MG 17-3-04
CHK
BY
FILE: AG5554_1P1.Sch 13:41:04 16-Dec-2004
PRINTED:
TEMP
TITLE:
RPS14 MAIN PCB CIRCUIT
PAGE:
DRG No: ISSUE: SHEET: OF
5554 1 2
1
F3
003-253 iss.1
FUSE HOLDER 20MM SCHURTER CLIPS
D10
1N4002
D11
1N4002
D12
1N4002
D13
1N4002
C24
1000/100
3
783
U1
CN7
1 2
1/4 INCH BLADE TERMINAL
e
CN8
1/4 INCH BLADE TERMINAL
Vin
D5
1N4002
ADJ
1
C1
1/63
Vout
2
D6
1N4002
R10
15K
R11
180R
R12
12K 1%
C18
100N 100V/MLC
C19
47/63
D14
1N4002
D9
BZV85C20V
R39
R40
10K
10K
LD2
LED T1 3MM GREEN
CN15
+48V
1/4 INCH BLADE TERMINAL
8
4
0VD
V+
V-
U8C
LM393
d
IEC MAINS INLET
CN9
1/4 INCH BLADE TERMINAL
c
CN10
1/4 INCH BLADE TERMINAL
b
PIN-SOLDER 1.5MM
PIN-SOLDER 1.5MM
PIN-SOLDER 1.5MM
PIN-SOLDER 1.5MM
PIN-SOLDER 1.5MM
CN18
1
L
IEC
MAINS
INLET
445
5
100N 100V/MLC
P1 PIN-SOLDER 1.5MM
P2
P3
P4
P5
P6
2
N
3
E
FUSE HOLDER 20MM SCHURTER CLIPS
1 2
C31
DC PWR SKT FEMALE 7 PIN CHASSIS
2
5 3
NTC1
F5
1 2
FUSE HOLDER 20MM
1/4 INCH BLADE TERMINAL
BR RECTIFIER (AE3921)
CN19
FEMALE
INRUSH SUPP NTC10R
EARTH
F4
BR3
4
1/4 INCH BLADE TERMINAL
1
67
0
To Switch From Switch
LIVE
1/4 INCH BLADE TERMINAL
NEUTRAL
1/4 INCH BLADE TERMINAL
EARTH2
1
23
14
DC PWR SKT FEMALE 7 PIN CHASSIS
2
5 3
LIVESW
1/4 INCH BLADE TERMINAL
NEUTRALSW
1/4 INCH BLADE TERMINAL
U9
7812
Vin
+12V
GND
2
C22
CN20
FEMALE
C23
10,000/25HE105C
4
0
R41
18R 1%
R69
3
18R 1%
R70
18R 1%
R71
18R 1%
1
67
To Transformer
1/4 INCH BLADE TERMINAL
LIVETX
NEUTRALTX
1/4 INCH BLADE TERMINAL
CN11
1
2
SIL 2 M STRT
FAN
10,000/25HE105C
P7
PIN-SOLDER 1.5MM
PARK1
1/4 INCH BLADE TERMINAL
PARK2
1/4 INCH BLADE TERMINAL
PARK3
1/4 INCH BLADE TERMINAL
+V_TO_U6
C29
100N 100V/MLC
6
VREF
R42
4K7
5
NI
C38
1/63
PARK4
1/4 INCH BLADE TERMINAL
PARK5
1/4 INCH BLADE TERMINAL
R44
1K0
+VC
12
11
10
VO
V+
VC
9
VZ
2
CL
U6
UA723CN
V-
7
CS
INV
COMP
13
R50
2K2 1%
Q9
BC549
3
4
C27
470P/DISK
C28
100/25
R51
10K
Q7
MJE340
R46
270R
R53
100K
R66
1K0
Q8
2SC3264
R47
0R22 4W
R54
1K8
2
1 3
VR3
PR VA 10K
R55
4K7
C39
1/63
0VD
R48
0R22 4W
C25
100N 100V/MLC
R43
4K7
TH1
THERMISTOR BEAD
R63
8K2
0VD
LD3
LED T1 3MM GREEN
C32
100/25
R56
0R0
0VD
D7
BYW81P-200
0VD
R52
100K
0VD
R64
27K
R65
68K
C40
1/63
+12V
CN16
1/4 INCH BLADE TERMINAL
C33
100/25
0VD
CN17
1/4 INCH BLADE TERMINAL
U8B
6
5
LM393
2
3
U8A
LM393
+VC
R57
100K
0VD
7
1
R62
100K
PROTECT
R60
3K3
LD4
LED T1 3MM RED
0VD
D15
BZX85C5V6
U7
4N35
6
BASE
5
COLL
4
EMIT
AN
NC
1
2
K
3
0VD
R61
3K3
PROTECT
R45
1K0
Q11
BC549
R59
47K
0VD
C36
47/25
a
ALLEN&HEATH
Kernick Industrial Estate,
Penryn, Cornwall,
England. TR10 9LU
+44 (0)8707 556250
Tel:
+44 (0)8707 556251
Fax:
ABCDEFGH
ISSUE BY DATE
C MG 17-3-04
CHK
BY
FILE: AG5554_1P2.Sch 13:41:04 16-Dec-2004
PRINTED:
TITLE:
RPS14 MAIN PCB CIRCUIT
PAGE:
DRG No: ISSUE: SHEET: OF
5554 2 2
1
003-253 iss.1.1
CN1
003-253 iss.C
1/4 INCH BLADE TERMINAL
CN2
e
1/4 INCH BLADE TERMINAL
CN3
1/4 INCH BLADE TERMINAL
d
FUSE HOLDER 20MM SCHURTER CLIPS
F1
1 2
C6
100N 100V/MLC
D1
1N4002
23
BR1
BR RECTIFIER (AE3921)
R21
R20
3K3
3K3
R22
3K3
14
R23
3K3
C10
10,000/35
C2
470/35 LESR
C11
10,000/35
C12
10,000/35
C4
100N 100V/MLC
R1
4K7
6
5
C8
100/25
12
VREF
NI
7
R7
1K0
V+
U2
UA723CN
V-
11
VO
VC
VZ
INV
13
R28
2K2 1%
CL
CS
COMP
Q5
BC549
+VA
10
9
2
3
4
C16
470P/DISK
+V_TO_U6
C20
100/25
Q1
MJE340
R9
270R
R30
10K
Q3
2SC3264
R14
0R22 4W
R2
1K5 1%
1 3
R36
1K0
VR1
PR VA 1K0
2
R15
0R22 4W
R3
NF RES
R16
0R22 4W
C7
100N 100V/MLC
D2
BYW81P-200
C35
47/25
R38
1K5
CN12
1/4 INCH BLADE TERMINAL
+VA
R33
100K
CNY17-2
6
BASE
5
COLL
4
EMIT
CN13
1/4 INCH BLADE TERMINAL
U4
AN
K
NC
+17.5V
1
2
3
0V
PROTECT
Q10
BC549
D8
BZX79C22V
LD1
LED T1 3MM GREEN
R49
47K
C34
47/25
R32
100K
D3
1N4002
c
b
CN4
1/4 INCH BLADE TERMINAL
FUSE HOLDER 20MM SCHURTER CLIPS
CN5
1/4 INCH BLADE TERMINAL
CN6
1/4 INCH BLADE TERMINAL
F2
1 2
100N 100V/MLC
C26
23
BR2
BR RECTIFIER (AE3921)
R25
R24
3K3
3K3
R26
3K3
14
R27
3K3
C13
10,000/35
C3
470/35 LESR
C14
10,000/35
C15
10,000/35
C5
100N 100V/MLC
R4
4K7
C9
100/25
6
5
12
VREF
NI
7
R8
1K0
V+
U3
UA723CN
V-
+VB
11
VO
VC
VZ
INV
13
R29
2K2 1%
CL
CS
COMP
Q6
BC549
10
9
2
3
4
C17
470P/DISK
C21
100/25
Q2
MJE340
R13
270R
R31
10K
R35
100K
Q4
2SC3264
R17
0R22 4W
R5
1K5 1%
1 3
R37
1K0
VR2
PR VA 1K0
2
R18
0R22 4W
R6
NF RES
R19
0R22 4W
C30
100N 100V/MLC
D4
BYW81P-200
C37
47/25
R58
0R0
+VB
R34
100K
1/4 INCH BLADE TERMINAL
6
5
4
U5
CNY17-2
CN14
BASE
COLL
EMIT
AN
K
NC
-17.5V
1
2
3
a
ALLEN&HEATH
Kernick Industrial Estate,
Penryn, Cornwall,
England. TR10 9LU
+44 (0)8707 556250
Tel:
+44 (0)8707 556251
Fax:
ABCDEFGH
ISSUE BY DATE
C MG 17-3-04
CHK
BY
FILE: AG5554_CP1.Sch 14:37:32 16-Dec-2004
PRINTED:
TEMP
TITLE:
RPS14 MAIN PCB CIRCUIT
PAGE:
DRG No: ISSUE: SHEET: OF
5554 1 2
C
F3
003-253 iss.C
FUSE HOLDER 20MM SCHURTER CLIPS
D10
1N4007
D11
1N4007
D12
1N4007
D13
1N4007
C24
1000/100
3
783
U1
CN7
1 2
1/4 INCH BLADE TERMINAL
e
CN8
1/4 INCH BLADE TERMINAL
Vin
D5
1N4002
ADJ
1
C1
1/63
Vout
2
D6
1N4002
R10
15K
R11
180R
R12
12K
C18
100N 100V/MLC
C19
47/63
D14
1N4007
D9
BZX79C22V
R39
R40
10K
10K
LD2
LED T1 3MM GREEN
CN15
+48V
1/4 INCH BLADE TERMINAL
8
4
0VD
V+
V-
U8C
LM393
d
IEC MAINS INLET
CN9
1/4 INCH BLADE TERMINAL
c
CN10
1/4 INCH BLADE TERMINAL
b
P1 PIN
P2 PIN
P3 PIN
P4 PIN
P5 PIN
P6 PIN
CN18
IEC
MAINS
INLET
445
5
100N 100V/MLC
1
L
2
N
3
E
C31
F5
1 2
FUSE HOLDER 20MM
F4
FUSE HOLDER 20MM SCHURTER CLIPS
1 2
DC PWR SKT FEMALE 7 PIN CHASSIS
CN19
2
5 3
FEMALE
4
NTC1
INRUSH SUPP NTC10R
23
1
67
0
LIVE
1/4 INCH BLADE TERMINAL
NEUTRAL
1/4 INCH BLADE TERMINAL
EARTH
1/4 INCH BLADE TERMINAL
BR3
BR RECTIFIER (AE3921)
DC PWR SKT FEMALE 7 PIN CHASSIS
2
5 3
EARTH2
1/4 INCH BLADE TERMINAL
14
C22
10,000/16
CN20
FEMALE
4
0
C23
10,000/16
1
67
PARK1
1/4 INCH BLADE TERMINAL
PARK2
1/4 INCH BLADE TERMINAL
PARK3
1/4 INCH BLADE TERMINAL
R41
33R 4W
PARK4
1/4 INCH BLADE TERMINAL
PARK5
1/4 INCH BLADE TERMINAL
PARK6
1/4 INCH BLADE TERMINAL
CN11
1
FAN
2
SIL 2 M STRT
P7
PIN-SOLDER 1.2MM
+V_TO_U6
C29
100N 100V L/MLC
6
R42
4K7
5
C38
1/63
12
VREF
NI
7
R44
1K0
V+
U6
UA723CN
V-
+VC
11
VO
VC
VZ
INV
13
R50
2K2 1%
CL
CS
COMP
Q9
BC549
10
9
2
3
4
C27
470P/DISK
C28
100/25
R51
10K
Q7
MJE340
R46
270R
R53
100K
Q8
2SC3264
R47
0R22 4W
R54
1K8
2
1 3
VR3
PR VA 10K
R55
6K8
C39
1/63
0VD
R48
0R22 4W
C25
100N 100V/MLC
R43
4K7
TH1
THERMISTOR BEAD
R63
8K2
0VD
LD3
LED T1 3MM GREEN
C32
100/25
R56
0R0
0VD
D7
BYW81P-200
0VD
R52
47K
0VD
R64
39K
R65
22K
C40
1/63
+12V
CN16
1/4 INCH BLADE TERMINAL
C33
100/25
0VD
CN17
1/4 INCH BLADE TERMINAL
0VD
U7
CNY17-2
BASE
COLL
EMIT
R62
100K
PROTECT
LD4
LED T1 3MM RED
D15
BZX85C5V6
1
AN
2
K
3
NC
R60
3K3
0VD
R61
3K3
PROTECT
R45
1K0
Q11
BC549
R59
47K
0VD
C36
47/25
U8B
6
5
LM393
2
3
U8A
LM393
+VC
R57
100K
0VD
7
1
6
5
4
a
ALLEN&HEATH
Kernick Industrial Estate,
Penryn, Cornwall,
England. TR10 9LU
+44 (0)8707 556250
Tel:
+44 (0)8707 556251
Fax:
ABCDEFGH
ISSUE BY DATE
C MG 17-3-04
CHK
BY
FILE: AG5554_CP2.Sch 14:37:32 16-Dec-2004
PRINTED:
TITLE:
RPS14 MAIN PCB CIRCUIT
PAGE:
DRG No: ISSUE: SHEET: OF
5554 2 2
C
003-253 iss.C
ALLEN&HEATH RPS14 PSU Mains Voltage Setting
For RPS14 units fitted with an Issue 1 Main PCB
On leaving the factory, the RPS14 power supply unit will be wired to operate at one of four different mains
voltage ranges, depending on its destination:
Mains Input Voltage Range:
100V AC +/- 10% 50/60Hz
120V AC +/- 10% 50/60Hz
220V AC +/- 10% 50/60Hz
240V AC +/- 10% 50/60Hz
It is possible to reconfigure the RPS14 to operate from a different voltage range. It may be necessary to do this
if the unit is to be used in a different part of the world. See overleaf for the possible settings.
The procedure involves removing the unit’s cover and re-positioning leads connected to the transformer’s
primary winding.
Due to the hazardous nature of the mains voltages exposed when opening the unit, this work should be carried
out only by technically competent personnel. If you are not sure or require further assistance, please contact
Allen & Heath technical support (see www.allen-heath.com
for contact details).
IMPORTANT
to the equipment not approved by Allen & Heath
could void the compliance of the equipment.
Whilst we believe the information in these
instructions to be reliable we do not assume
responsibility for inaccuracies. We also reserve
the right to make changes in the interest of
further product development.
Copyright© 2004 Allen & Heath Limited. All rights
reserved. www.allen-heath.com
: Any changes or modifications
This work should be carried out only by
qualified technical personnel authorised by
Allen & Heath.
Disconnect the mains power cord before
opening the unit.
Take care not to damage the panels or
internal assemblies during fitting. Prevent loose
parts or dirt from entering the unit as this may
cause equipment failure.
Procedure
Step 1: Preparation
Ensure the unit is powered off. Disconnect the mains power lead and console DC cables. Remove the unit from
its rack or other furniture and place on the work surface.
Step 2: Remove the cover
Remove the eight T10 Torx (star head) screws and lift off the cover.
REMOVE 4x SCREWS
RPS14 Mains Voltage Setting 1
REMOVE 2x SCREWS
PER SIDE
Step 3: Change the voltage setting
Locate the mains inlet PCB. An issue 1 board is shown here – some early RPS14s were fitted with an issue C
PCB – please consult Allen & Heath technical support for information on changing the voltage setting for the
issue C units.
The mains voltage setting is selected by connecting the
appropriate transformer primary lead to the LIVETX terminal
on the PCB. The terminals PARK1 to PARK5 are not
connected to any circuits – they are simply used to store the
unused leads safely.
Select the correct lead for your required mains voltage by
referring to the table, and then swap its position with the
lead currently connected to the LIVETX terminal. The unit is
now set to operate at the new mains voltage, and the
previously used primary lead is safely stored on a PARK
terminal. If in any doubt about the mains voltage for your
area, contact your electricity supplier.
AC Mains Voltage Lead Colour
240 Brown
230 Violet
220 Red
120 Black
100 Grey
90 Orange
Step 4: Check the fuse rating
It may be necessary to change the mains fuse to suit the new mains voltage – see the following table:
AC~ mains input voltage Fuse type
100V – 120V ± 10%
220V – 240V ± 10%
T 10A L 250V 20mm
T 8A L 250V 20mm
The mains fuse is located on the rear of the RPS14 unit next to the MAINS INPUT connector. Switch off the
power supply and remove the mains lead plug from the MAINS INPUT socket. Check the fuse and replace with
one of the correct type if necessary
Step 5: Refit the cover
Check your work carefully, making sure the leads are properly seated on the terminals. Ensure that there is no
dirt or debris inside the unit. Replace the cover and secure with the 8x Torx screws.
The unit should be clearly re-labelled with the new operating voltage.
Step 6: Test
Connect the unit to a mains supply at the new voltage. Power up and check for correct operation.
2 RPS14 Mains Voltage Setting
ALLEN&HEATH RPS14 Transformer Wiring Details
RPS14 Transformer – A&H Part No. AM5702 Iss.2 Date 12/05/04
PRIMARY SECONDARY
Bwn 350mm 18AWG · · Blu 350mm 20AWG 26.0V No Load
240V o─────────────────▄ │ ▄─────────────────o 24.5V @ 0.5A
█ │ █ S1
P1 █ │ █ Whi 350mm 16AWG 20.5V No Load
█ │ █─────────────────o 19.5@ 12A
Vio 350mm 18AWG █ │ █ S2
230V o─────────────────█ │ █ Bwn 350mm 16AWG
█ │ ▀─────────────────o 0V
P2 █ │
█ │ Blk 300mm 20AWG
Red 350mm 18AWG █ │ ▄─────────────────o 26.0V No Load
220V o─────────────────█ │ █ 24.5V @0.5A
█ │ █ Org 300mm 16AWG S3
P3 █ │ █─────────────────o 20.5V No Load
█ │ █ S4 19.5@ 12A
Blk 350mm 18AWG █ │ █ Yel 300mm 16AWG
120V o─────────────────█ │ ▀─────────────────o 0V
█ │
P4 █ │ · Vio 190mm 20AWG 58.4V No Load
█ │ ▄─────────────────o 55.0V @ 1.0A
Grey 350mm 18AWG █ │ █
100V o─────────────────█ │ █ S5
█ │ █ Vio 190mm 20AWG
P5 █ │ ▀─────────────────o 0V
█ │
Ora 350mm 18AWG █ │
90V o─────────────────█ │ Red 220mm 20AWG 14.6V No Load
█ │ ▄─────────────────o 13.5V @ 5.0A
P6 █ │ █
Blu 350mm 18AWG █ │ █ S6
0V o──────■■─────────▀ │ █ Red 220mm 20AWG
Autoreset, 120deg │ ▀─────────────────o 0V
│
Grn 370mm 18AWG │
Screen o───────────────────┘
Note:
This transformer (Allen & Heath part no. AM5702, iss.2) is suitable for use with RPS14 units using
issue 1 / 1.1 main PCBs. Some early RPS14s were produced using an issue C main PCB. The
AM5702 iss.2 may be adapted for use with an issue C unit should a replacement be needed.
Please contact Allen & Heath technical support for advice on this matter.
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