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.
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.
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.
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.
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 – 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.
RPS14 Internal Layout Product ................................ RPS14/100 ............................................ RPS14/120 ............................................ RPS14/220 ............................................ RPS14/240 .............................................................. FAN AM4474 SUB 1 PCB Main Assembly ......................... 003-251 Pack Assembly......................... 003-252 FUSE F1 AL8154 FUSE F5 AL0487 or AL3455* PCB Assembly .........................
RPS14 Surface Parts ALLEN&HEATH RPS14 POWER ON ON MAINS ROCKER SWITCH AL0587 OFF +/-17V HI TEMP +48V +12V CONSOLE PSU AUTO COMBINING LINEAR TECHNOLOGY RED LED AE0086 GREEN LED AE0085 M8x65 SCREW AB5203 2BA TERMINAL POST AL8106 M4x8 SCREW AB0332 ALLEN&HEATH RPS14 CONSOLE PSU DO NOT OBSTRUCT VENTILATION OPENINGS. DO NOT OPEN. NO USER SERVICEABLE PARTS INSIDE. THIS APPARATUS MUST BE EARTHED BY THE POWER CORD. CAUTION AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR.
D1 +V_TO_U6 1N4002 R7 1K0 R67 4K7 C2 470/35 LESR 6 1/4 INCH BLADE TERMINAL 4 1 9 VZ U2 CL CS 1/4 INCH BLADE TERMINAL R23 3K3 C12 10,000/35 10,000/35 +17.
F3 FUSE HOLDER 20MM SCHURTER CLIPS D5 D11 1N4002 1N4002 3 1/4 INCH BLADE TERMINAL D13 1N4002 D12 e U1 783 C24 1000/100 D6 1N4002 1/4 INCH BLADE TERMINAL D9 BZV85C20V C19 C18 47/63 R12 100N 100V/MLC 12K 1% R10 15K +48V 1N4002 R11 180R C1 1/63 1N4002 CN15 D14 2 Vout ADJ D10 1N4002 Vin R39 10K 8 2 1 1 V- V+ CN7 R40 10K U8C LM393 4 CN8 LD2 LED T1 3MM GREEN 1/4 INCH BLADE TERMINAL To Switch NTC1 CN18 INRUSH SUPP NTC10R LIVE L IEC MAINS INLET N E 4 5 d From Switch F5 1 2
003-253 iss.1.
D1 +V_TO_U6 1N4002 R7 1K0 C2 470/35 LESR 1/4 INCH BLADE TERMINAL 1 9 VZ U2 R1 4K7 C6 100N 100V/MLC CN3 VO VREF CL CS 1/4 INCH BLADE TERMINAL R23 3K3 C12 10,000/35 10,000/35 +17.
F3 FUSE HOLDER 20MM SCHURTER CLIPS D5 D11 1N4007 1N4002 3 1/4 INCH BLADE TERMINAL U1 783 D13 1N4007 C24 1000/100 D12 e D6 1N4002 R10 15K 1/4 INCH BLADE TERMINAL D9 BZX79C22V C19 C18 47/63 100N 100V/MLC R12 12K +48V 1N4007 R11 180R C1 1/63 1N4007 CN15 D14 2 Vout 1 D10 1N4007 Vin R39 10K 8 2 V- V+ 1 ADJ CN7 R40 10K U8C LM393 4 CN8 LD2 LED T1 3MM GREEN 1/4 INCH BLADE TERMINAL NTC1 CN18 N E 4 5 d PARK4 INRUSH SUPP NTC10R LIVE L IEC MAINS INLET PARK1 0VD F5 1 2 FUSE
003-253 iss.
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.
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.
ALLEN&HEATH RPS14 Transformer Wiring Details RPS14 Transformer – A&H Part No. AM5702 Iss.
