ALLEN & HEATH RPS14 Service Information

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/

Linear Console Power Supply

SERVICE INFORMATION

Publication AP5717

RPS14

2 rps14_ap5717_1.doc

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 [email protected] 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

Manufactured in the United Kingdom by Allen & Heath

Kernick Industrial Estate, Penryn, Cornwall, TR10 9LU, UK

http://www.allen-heath.com

rps14_ap5717_1.doc 3

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.

4 rps14_ap5717_1.doc

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: 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.

The RPS14 can be set to operate at a different mains voltage by performing

an internal wiring modification.

See document rps14_mains_voltage_setting.pdf for details.

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.

rps14_ap5717_1.doc 5

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

6 rps14_ap5717_1.doc

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 From Serial

Number Date Change Note

Number

003-253 Main PCB up-issue + transformer change - - -

003-253 Resistor value changes 001033 05/07/04 1049

003-253 Diode hole size change, PCB now Iss 1.1 - 02/12/04 1102

rps14_layout_1.doc Sheet 1 of 1

RPS14 Internal Layout

Product ................................ RPS14/100

............................................ RPS14/120

............................................ RPS14/220

............................................ RPS14/240

..............................................................

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

* 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).

FAN

AM4474

TRANSFORMER

AM5702**

MAIN PCB

003-253

SUB 1 PCB

SUB 2 PCB

FUSE F1

AL8154

FUSE F2

AL8154

FUSE F4

AL0395

FUSE F3

AL0466

FUSE F5

AL0487

or

AL3455*

rps14_parts_1.doc Sheet 1 of 1

7WAY PLUG

A

L3891

RPS14 Surface Parts

AC SUPPLYFUSE TYPE

T10A L 250V 20mm

T8A L 250V 20mm 220-240V~

100-120V~

ALLEN&HEATH CONSOLE PSU

RPS14

CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE FUSE

ATTENTION: REMPLACER LE FUSIBLE AVEC UN DES MEMES CARACTERISTIQUES.

WITH SAME TYPE AND RATING. DISCONNECT SUPPLY BEFORE CHANGING FUSE.

COUPER L'ALIMENTATION AVANT DE CHANGER LE FUSIBLE.

DO NOT OPEN. NO USER SERVICEABLE PARTS INSIDE.

DO NOT OBSTRUCT VENTILATION OPENINGS.

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.

AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR.

CAUTION

CHASSIS

GROUND

FUSE

525W MAX

V AC ~ 47- 63 Hz

MAINS INPUT

MADE IN ENGLAND

S/No

COMBINING

SUPPLIES

REDUNDANT

MAIN

TO CONSOLE

DC POWER IN (OUT 2)DC POWER OUT 1

ALLEN&HEATH

CONSOLE PSU AUTO COMBINING LINEAR TECHNOLOGY

+/-17V +12V +48V

POWER ON

ON

OFF

HI TEMP

RPS14

M3x5 SCREW AB4661

MAINS ROCKER SWITCH

A

L0587

FUSE HOLDER

A

L3178

8A FUSE AL0487 or

10A FUSE AL3455

MAINS IEC

A

L3179 80MM 12V FAN

A

M4474

80MM FAN GUARD AA5719

GREEN LED

A

E0085

RED LED

A

E0086 M8

x

65 SCREW

A

B5203 FAST FEET

A

K0102

2BA TERMINAL POST

A

L8106 M4x8 SCREW

A

B0332

M3x10 SCREW

A

B0076

SHORT

(

0.75m

)

DC POWER CABLE 002-584

LONG

(

2.9m

)

DC POWER CABLE 002-583

AL3893

Kernick Industrial Estate,

Penryn, Cornwall,

England. TR10 9LU

+44 (0)8707 556250

+44 (0)8707 556251 1

RPS14 MAIN PCB CIRCUIT

5554 1 2

PAGE:

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ISSUE BY DATE

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ALLEN&HEATH

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ABCDEFGH

a

b

c

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BY

CN1

1/4 INCH BLADE TERMINAL

CN2

1/4 INCH BLADE TERMINAL

CN3

1/4 INCH BLADE TERMINAL

14

23

BR1

BR RECTIFIER (AE3921)

D1

1N4002

C10

10,000/35

C11

10,000/35

C12

10,000/35

C2

470/35 LESR

R14

0R22 4W

R15

0R22 4W

R16

0R22 4W

Q3

2SC3264

R23

3K3

R22

3K3

R21

3K3

R20

3K3

1 2

F1

FUSE HOLDER 20MM SCHURTER CLIPS

CN4

1/4 INCH BLADE TERMINAL

CN5

1/4 INCH BLADE TERMINAL

CN6

1/4 INCH BLADE TERMINAL

14

23

BR2

BR RECTIFIER (AE3921)

D3

1N4002

C13

10,000/35

C14

10,000/35

C15

10,000/35

C3

470/35 LESR

R17

0R22 4W

R18

0R22 4W

R19

0R22 4W

Q4

2SC3264

TEMP

R27

3K3

R26

3K3

R25

3K3

R24

3K3

1 2

F2

FUSE HOLDER 20MM SCHURTER CLIPS

R33

100K

R34

100K

COLL

5

EMIT

4

AN 1

K2

NC 3

BASE

6

U4

4N35

COLL

5

EMIT

4

AN 1

K2

NC 3

BASE

6

U5

4N35

+VA

+VB

D8

BZX85C18

LD1

LED T1 3MM GREEN

R38

3K3

+17.5V

0V

-17.5V

D2

BYW81P-200

D4

BYW81P-200

+VA

+VB

R30

10K

R7

1K0

Q5

BC549

R28

2K2 1%

C16

470P/DISK

R1

4K7 R9

270R

Q1

MJE340

R2

1K5 1%

R36

1K0

R3

NF RES

1 3

2

VR1

PR VA 1K0

C20

100/25

R32

100K

C4

100N 100V/MLC

R8

1K0

Q6

BC549

R29

2K2 1%

C17

470P/DISK

R4

4K7 R13

270R

Q2

MJE340

R5

1K5 1%

R37

1K0

R6

NF RES

1 3

2

VR2

PR VA 1K0

C21

100/25

R31

10K R35

100K

C5

100N 100V/MLC

R58

0R0

V+ 12

V-

7

CS 3

CL 2

COMP

13

VREF

6

VO 10

VZ 9

NI

5

INV 4

VC 11

U2

UA723CN

V+ 12

V-

7

CS 3

CL 2

COMP

13

VREF

6

VO 10

VZ 9

NI

5

INV 4

VC 11

U3

UA723CN

C8

100/25

C9

100/25

C6

100N 100V/MLC

C26

100N 100V/MLC

C35

100/25

C37

100/25

C7

NF CAP RAD 0.200/0.300

C30

NF CAP RAD 0.200/0.300

+V_TO_U6

C MG 17-3-04

CN12

1/4 INCH BLADE TERMINAL

CN14

1/4 INCH BLADE TERMINAL

CN13

1/4 INCH BLADE TERMINAL

Q10

BC549

R49

47K

PROTECT

C34

47/25

R67

4K7

R68

4K7

003-253 iss.1

Kernick Industrial Estate,

Penryn, Cornwall,

England. TR10 9LU

+44 (0)8707 556250

+44 (0)8707 556251 1

RPS14 MAIN PCB CIRCUIT

5554 2 2

PAGE:

TITLE:

DRG No: ISSUE: SHEET: OF

ISSUE BY DATE

FILE: AG5554_1P2.Sch 13:41:04 16-Dec-2004

ALLEN&HEATH

Tel:

Fax: PRINTED:

ABCDEFGH

a

b

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d

e

CHK

BY

Vin

3

ADJ

1

Vout 2

U1

783

C19

47/63

C18

100N 100V/MLC

C1

1/63

R10

15K

R12

12K 1%

R11

180R

D6

1N4002

D5

1N4002

CN7

1/4 INCH BLADE TERMINAL

CN8

1/4 INCH BLADE TERMINAL

D11

1N4002

D12

1N4002

D10

1N4002

D13

1N4002

1 2

F3

FUSE HOLDER 20MM SCHURTER CLIPS

D9

BZV85C20V

R39

10K

R40

10K

LD2

LED T1 3MM GREEN

14

23

BR3

BR RECTIFIER (AE3921)

CN9

1/4 INCH BLADE TERMINAL

CN10

1/4 INCH BLADE TERMINAL

1 2

F4

FUSE HOLDER 20MM SCHURTER CLIPS

C22

10,000/25HE105C

C23

10,000/25HE105C

D14

1N4002

1

2

CN11

SIL 2 M STRT

LD3

LED T1 3MM GREEN

+48V

+12V

0VD

C24

1000/100

D7

BYW81P-200

R47

0R22 4W

R48

0R22 4W

Q8

2SC3264

C25

100N 100V/MLC

R57

100K

COLL

5

EMIT

4

AN 1

K2

NC 3

BASE

6

U7

4N35

+VC

D15

BZX85C5V6

R45

1K0

FAN

R56

0R0

+V_TO_U6

+VC

R44

1K0

Q9

BC549

R50

2K2 1%

C27

470P/DISK

R42

4K7 R46

270R

Q7

MJE340

1 3

2

VR3

PR VA 10K

C28

100/25

R51

10K R53

100K

C29

100N 100V/MLC

R54

1K8

R55

4K7

R43

4K7

V+ 12

V-

7

CS 3

CL 2

COMP

13

VREF

6

VO 10

VZ 9

NI

5

INV 4

VC 11

U6

UA723CN

C38

1/63

C32

100/25

C33

100/25

C MG 17-3-04

C31

100N 100V/MLC

CN15

1/4 INCH BLADE TERMINAL

CN16

1/4 INCH BLADE TERMINAL

CN17

1/4 INCH BLADE TERMINAL

TH1

THERMISTOR BEAD

R63

8K2

R64

27K

R65

68K

0VD

5

6

7

U8B

LM393

V-

4V+ 8

U8C

LM393

3

2

1

U8A

LM393

LD4

LED T1 3MM RED

R60

3K3

R61

3K3

Q11

BC549

0VD

R59

47K

PROTECT

R62

100K

0VD

R52

100K

C39

1/63

C40

1/63

C36

47/25

0VD

1

4

2

5 3

0

67

FEMALE

CN19

DC PWR SKT FEMALE 7 PIN CHASSIS

1

4

2

5 3

0

67

FEMALE

CN20

DC PWR SKT FEMALE 7 PIN CHASSIS

P4

PIN-SOLDER 1.5MM

P5

PIN-SOLDER 1.5MM

P6

PIN-SOLDER 1.5MM

P1 PIN-SOLDER 1.5MM

P2

PIN-SOLDER 1.5MM

P3

PIN-SOLDER 1.5MM

E3

N2

L1

IEC

MAINS

INLET

4

5

CN18

IEC MAINS INLET

1 2

F5

FUSE HOLDER 20MM

LIVE

1/4 INCH BLADE TERMINAL

NEUTRAL

1/4 INCH BLADE TERMINAL

EARTH

1/4 INCH BLADE TERMINAL

NTC1

INRUSH SUPP NTC10R

P7

PIN-SOLDER 1.5MM

EARTH2

1/4 INCH BLADE TERMINAL

PARK1

1/4 INCH BLADE TERMINAL

PARK2

1/4 INCH BLADE TERMINAL

PARK3

1/4 INCH BLADE TERMINAL

PARK4

1/4 INCH BLADE TERMINAL

PARK5

1/4 INCH BLADE TERMINAL

To Switch From Switch

LIVESW

1/4 INCH BLADE TERMINAL

NEUTRALSW

1/4 INCH BLADE TERMINAL

LIVETX

1/4 INCH BLADE TERMINAL

To Transformer

NEUTRALTX

1/4 INCH BLADE TERMINAL

R66

1K0

Vin

1

GND

2

+12V 3

U9

7812

R41

18R 1%

R69

18R 1%

R70

18R 1%

R71

18R 1%

003-253 iss.1

003-253 iss.1.1

Kernick Industrial Estate,

Penryn, Cornwall,

England. TR10 9LU

+44 (0)8707 556250

+44 (0)8707 556251 C

RPS14 MAIN PCB CIRCUIT

5554 1 2

PAGE:

TITLE:

DRG No: ISSUE: SHEET: OF

ISSUE BY DATE

FILE: AG5554_CP1.Sch 14:37:32 16-Dec-2004

ALLEN&HEATH

Tel:

Fax: PRINTED:

ABCDEFGH

a

b

c

d

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BY

CN1

1/4 INCH BLADE TERMINAL

CN2

1/4 INCH BLADE TERMINAL

CN3

1/4 INCH BLADE TERMINAL

14

23

BR1

BR RECTIFIER (AE3921)

D1

1N4002

C10

10,000/35

C11

10,000/35

C12

10,000/35

C2

470/35 LESR

R14

0R22 4W

R15

0R22 4W

R16

0R22 4W

Q3

2SC3264

R23

3K3

R22

3K3

R21

3K3

R20

3K3

1 2

F1

FUSE HOLDER 20MM SCHURTER CLIPS

CN4

1/4 INCH BLADE TERMINAL

CN5

1/4 INCH BLADE TERMINAL

CN6

1/4 INCH BLADE TERMINAL

14

23

BR2

BR RECTIFIER (AE3921)

D3

1N4002

C13

10,000/35

C14

10,000/35

C15

10,000/35

C3

470/35 LESR

R17

0R22 4W

R18

0R22 4W

R19

0R22 4W

Q4

2SC3264

TEMP

R27

3K3

R26

3K3

R25

3K3

R24

3K3

1 2

F2

FUSE HOLDER 20MM SCHURTER CLIPS

R33

100K

R34

100K

COLL

5

EMIT

4

AN 1

K2

NC 3

BASE

6

U4

CNY17-2

COLL

5

EMIT

4

AN 1

K2

NC 3

BASE

6

U5

CNY17-2

+VA

+VB

D8

BZX79C22V

LD1

LED T1 3MM GREEN

R38

1K5

+17.5V

0V

-17.5V

D2

BYW81P-200

D4

BYW81P-200

+VA

+VB

R30

10K

R7

1K0

Q5

BC549

R28

2K2 1%

C16

470P/DISK

R1

4K7 R9

270R

Q1

MJE340

R2

1K5 1%

R36

1K0

R3

NF RES

1 3

2

VR1

PR VA 1K0

C20

100/25

R32

100K

C4

100N 100V/MLC

R8

1K0

Q6

BC549

R29

2K2 1%

C17

470P/DISK

R4

4K7 R13

270R

Q2

MJE340

R5

1K5 1%

R37

1K0

R6

NF RES

1 3

2

VR2

PR VA 1K0

C21

100/25

R31

10K R35

100K

C5

100N 100V/MLC

R58

0R0

V+ 12

V-

7

CS 3

CL 2

COMP

13

VREF

6

VO 10

VZ 9

NI

5

INV 4

VC 11

U2

UA723CN

V+ 12

V-

7

CS 3

CL 2

COMP

13

VREF

6

VO 10

VZ 9

NI

5

INV 4

VC 11

U3

UA723CN

C8

100/25

C9

100/25

C6

100N 100V/MLC

C26

100N 100V/MLC

C35

47/25

C37

47/25

C7

100N 100V/MLC

C30

100N 100V/MLC

+V_TO_U6

C MG 17-3-04

CN12

1/4 INCH BLADE TERMINAL

CN14

1/4 INCH BLADE TERMINAL

CN13

1/4 INCH BLADE TERMINAL

Q10

BC549

R49

47K

PROTECT

C34

47/25

003-253 iss.C

Kernick Industrial Estate,

Penryn, Cornwall,

England. TR10 9LU

+44 (0)8707 556250

+44 (0)8707 556251 C

RPS14 MAIN PCB CIRCUIT

5554 2 2

PAGE:

TITLE:

DRG No: ISSUE: SHEET: OF

ISSUE BY DATE

FILE: AG5554_CP2.Sch 14:37:32 16-Dec-2004

ALLEN&HEATH

Tel:

Fax: PRINTED:

ABCDEFGH

a

b

c

d

e

CHK

BY

Vin

3

ADJ

1

Vout 2

U1

783

C19

47/63

C18

100N 100V/MLC

C1

1/63

R10

15K

R12

12K

R11

180R

D6

1N4002

D5

1N4002

CN7

1/4 INCH BLADE TERMINAL

CN8

1/4 INCH BLADE TERMINAL

D11

1N4007

D12

1N4007

D10

1N4007

D13

1N4007

1 2

F3

FUSE HOLDER 20MM SCHURTER CLIPS

D9

BZX79C22V

R39

10K

R40

10K

LD2

LED T1 3MM GREEN

14

23

BR3

BR RECTIFIER (AE3921)

CN9

1/4 INCH BLADE TERMINAL

CN10

1/4 INCH BLADE TERMINAL

1 2

F4

FUSE HOLDER 20MM SCHURTER CLIPS

C22

10,000/16

C23

10,000/16

R41

33R 4W

D14

1N4007

1

2

CN11

SIL 2 M STRT

LD3

LED T1 3MM GREEN

+48V

+12V

0VD

C24

1000/100

D7

BYW81P-200

R47

0R22 4W

R48

0R22 4W

Q8

2SC3264

C25

100N 100V/MLC

R57

100K

COLL

5

EMIT

4

AN 1

K2

NC 3

BASE

6

U7

CNY17-2

+VC

D15

BZX85C5V6

R45

1K0

FAN

R56

0R0

+V_TO_U6

+VC

R44

1K0

Q9

BC549

R50

2K2 1%

C27

470P/DISK

R42

4K7 R46

270R

Q7

MJE340

1 3

2

VR3

PR VA 10K

C28

100/25

R51

10K R53

100K

C29

100N 100V L/MLC

R54

1K8

R55

6K8

R43

4K7

V+ 12

V-

7

CS 3

CL 2

COMP

13

VREF

6

VO 10

VZ 9

NI

5

INV 4

VC 11

U6

UA723CN

C38

1/63

C32

100/25

C33

100/25

C MG 17-3-04

C31

100N 100V/MLC

CN15

1/4 INCH BLADE TERMINAL

CN16

1/4 INCH BLADE TERMINAL

CN17

1/4 INCH BLADE TERMINAL

TH1

THERMISTOR BEAD

R63

8K2

R64

39K

R65

22K

0VD

5

6

7

U8B

LM393

V-

4V+ 8

U8C

LM393

3

2

1

U8A

LM393

LD4

LED T1 3MM RED

R60

3K3

R61

3K3

Q11

BC549

0VD

R59

47K

PROTECT

R62

100K

0VD

R52

47K

C39

1/63

C40

1/63

C36

47/25

0VD

1

4

2

5 3

0

67

FEMALE

CN19

DC PWR SKT FEMALE 7 PIN CHASSIS

1

4

2

5 3

0

67

FEMALE

CN20

DC PWR SKT FEMALE 7 PIN CHASSIS

P4 PIN

P5 PIN

P6 PIN

P1 PIN

P2 PIN

P3 PIN

E3

N2

L1

IEC

MAINS

INLET

4

5

CN18

IEC MAINS INLET

1 2

F5

FUSE HOLDER 20MM

LIVE

1/4 INCH BLADE TERMINAL

NEUTRAL

1/4 INCH BLADE TERMINAL

EARTH

1/4 INCH BLADE TERMINAL

NTC1

INRUSH SUPP NTC10R

P7

PIN-SOLDER 1.2MM

EARTH2

1/4 INCH BLADE TERMINAL

PARK1

1/4 INCH BLADE TERMINAL

PARK2

1/4 INCH BLADE TERMINAL

PARK3

1/4 INCH BLADE TERMINAL

PARK4

1/4 INCH BLADE TERMINAL

PARK5

1/4 INCH BLADE TERMINAL

PARK6

1/4 INCH BLADE TERMINAL

003-253 iss.C

RPS14 Mains Voltage Setting 1

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: Any changes or modifications

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.

reserved. www.allen-heath.com

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

REMOVE 2x SCREWS

PER SIDE

ALLEN&HEATH RPS14 PSU Mains Voltage Setting

2 RPS14 Mains Voltage Setting

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.

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.

AC Mains Voltage Lead Colour

240 Brown

230 Violet

220 Red

120 Black

100 Grey

90 Orange

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.

ALLEN&HEATH RPS14 Transformer Wiring Details

ALLEN & HEATH RPS14 Service Information

ALLEN & HEATH RPS14 Service Information

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