ALLEN&HEATH WARNING HIGH VOLTAGES. Power Supply Unit (PSU) work should only be carried out by qualified personnel.

Transcription

1 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.

2 RPS Linear Console Power Supply SERVICE INFORMATION Publication AP

3 Introduction This publication provides technical information on servicing the Allen & Heath RPS 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 Product information Technical downloads Distribution contacts Company contacts Technical support See web for local contact RPS User Guide AP Operating instructions Performance specification RPS Service Information Issue status: rps_ap_.doc Print date: 0 January 00 Copyright 00 Allen & Heath. All rights reserved Manufactured in the United Kingdom by Allen & Heath Kernick Industrial Estate, Penryn, Cornwall, TR0 9LU, UK rps_ap_.doc

4 Servicing Precautions General Notes Service personnel: Service facilities: Service information: Mains power: 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. 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. 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). 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: Closing the unit: Testing the unit: Shipping 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. 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. 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. 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. rps_ap_.doc

5 Servicing Notes RPS User maintenance: There are no user serviceable parts inside the unit. It should be serviced by suitably qualified personnel only. Technology: The RPS 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 RPS can be set to operate at a different mains voltage by performing an internal wiring modification. See document rps_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 RPS 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 00V 0V ± 0% 0V 0V ± 0% Fuse type T 0A 0V 0mm T 8A 0V 0mm Internal DC Rail Fuses Each DC supply rail (+V, -V, +V and +8V) 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 RPS 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 rps_transformer_.pdf and check that the correct secondary voltages are reaching the main PCB. rps_ap_.doc

6 Contents Log Internal Layout drawing...rps_layout_.pdf Surface and Main Parts... rps_parts_.pdf Main PCB...rps_00-_main_c.pdf...rps_00-_main_..pdf Transformer Wiring Information...rps_transformer_.pdf Mains Voltage Setting... rps_mains_voltage_setting.pdf Engineering Change Notes...rps_ecns_.pdf rps_ap_.doc

7 RPS Historical Change Log The following list identifies historical changes to the RPS. 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 00- Main PCB up-issue + transformer change Resistor value changes 000 0/0/ Diode hole size change, PCB now Iss. - 0//0 0 rps_ap_.doc

8 RPS Internal Layout Product... RPS/00... RPS/0... RPS/0... RPS/0 SUB PCB FAN AM... Main Assembly Pack Assembly FUSE F AL8 FUSE F AL08 or AL* SUB PCB PCB Assembly Fuse 0mm.A A/Surge... AL09 Fuse 0mm.A A/Surge... AL0 FUSE F AL8 Fuse 0mm 8A A/Surge... AL08 Fuse 0mm 0A A/Surge... AL Fuse 0mm A A/Surge... AL8 FUSE F AL09 Cooling Fan 80mm V... AM Transformer... AM0 FUSE F AL0 TRANSFORMER AM0** MAIN PCB 00- * Fuse F = 0A for 00-0V AC operation, 8A for 0-0V AC operation ** Changes to the transformer wiring were made when the main PCB was up-issued form AG_C to AG_. If ordering a replacement transformer, be sure to check and quote the PCB issue number (printed on the board). rps_layout_.doc Sheet of

9 RPS Surface Parts RPS ALLEN&HEATH POWER ON ON OFF MAINS ROCKER SWITCH AL08 HI TEMP +/-V +V +8V CONSOLE PSU AUTO COMBINING LINEAR TECHNOLOGY RED LED AE008 GREEN LED AE008 M8x SCREW AB0 FAST FEET AK00 BA TERMINAL POST AL80 Mx8 SCREW AB0 CAUTION DO NOT OBSTRUCT VENTILATION OPENINGS. DO NOT OPEN. NO USER SERVICEABLE PARTS INSIDE. THIS APPARATUS MUST BE EARTHED BY THE POWER CORD. ALLEN&HEATH DC POWER OUT RPS CONSOLE PSU DC POWER IN (OUT ) AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR. WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE. CAUTION: FOR CONTINUED PROTECTION 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. MAINS INPUT S/No MADE IN ENGLAND V AC ~ - Hz W MAX FUSE FUSE TYPE T0A L 0V 0mm T8A L 0V 0mm AC SUPPLY 00-0V~ 0-0V~ CHASSIS GROUND MAIN REDUNDANT TO CONSOLE COMBINING SUPPLIES WAY PLUG AL89 Mx0 SCREW AB00 MAINS IEC AL9 FUSE HOLDER AL8 8A FUSE AL08 or 0A FUSE AL 80MM V FAN AM 80MM FAN GUARD AA9 Mx SCREW AB LONG (.9m) DC POWER CABLE 00-8 SHORT (0.m) DC POWER CABLE 00-8 rps_parts_.doc Sheet of

10 D +V_TO_U e d CN CN CN F FUSE HOLDER 0MM SCHURTER CLIPS C 00N 00V/MLC R0 K N00 R K BR BR RECTIFIER (AE9) R K R K R K C0 0,000/ C 0/ LESR C 0,000/ C 0,000/ C 00N 00V/MLC R K C8 00/ V+ VREF NI V- R K0 VC U CL UACN CS COMP VO VZ INV +VA C Q BC9 0 9 R8 0P/DISK K % C0 00/ Q MJE0 R9 0R R0 0K R K % R K0 Q SC R 0R W R 0R W R 0R W VR PR VA K0 R NF RES C NF CAP RAD 0.00/0.00 D BYW8P-00 C 00/ +VA R 00K R8 K CN U N BASE AN COLL K EMIT NC +.V CN 0V PROTECT Q0 BC9 D8 BZX8C8 LD LED T MM GREEN R9 K C / R 00K R8 0R0 D c b CN CN CN F FUSE HOLDER 0MM SCHURTER CLIPS C 00N 00V/MLC R K N00 R K BR BR RECTIFIER (AE9) R K R K R8 K C 0,000/ C 0/ LESR C 0,000/ C 0,000/ C 00N 00V/MLC R K C9 00/ V+ VREF NI V- R8 K0 U VC +VB UACN CS COMP VO VZ CL INV C 0 9 R9 0P/DISK K % Q MJE0 R 0R R K % Q SC R 0R W R8 0R W R9 0R W VR PR VA K0 C0 NF CAP RAD 0.00/0.00 C 00/ +VB R 00K U N BASE AN COLL K EMIT NC R K0 R NF RES Q BC9 C 00/ R 0K R 00K D BYW8P-00 CN -.V a TEMP CHK ISSUE BY DATE BY ALLEN&HEATH Kernick Industrial Estate, C MG --0 TITLE: Penryn, Cornwall, PAGE: England. TR0 9LU Tel: + (0)80 0 Fax: + (0)80 FILE: AG_P.Sch PRINTED: ::0 -Dec-00 DRG No: ISSUE: SHEET: OF RPS MAIN PCB CIRCUIT A B C D E F G H

11 e CN F FUSE HOLDER 0MM SCHURTER CLIPS D0 N00 D N00 D N00 D N00 C 000/00 U 8 Vin ADJ D N00 Vout C / D N00 R0 K R 80R C8 R 00N 00V/MLC K % C9 / D9 BZV8C0V R9 0K D N00 R0 0K CN +8V 8 V+ V- U8C LM9 CN8 LD LED T MM GREEN d c b CN9 CN0 CN8 IEC MAINS INLET C 00N 00V/MLC PIN-SOLDER.MM P PIN-SOLDER.MM P PIN-SOLDER.MM P PIN-SOLDER.MM P P L N E IEC MAINS INLET PIN-SOLDER.MM P PIN-SOLDER.MM F FUSE HOLDER 0MM SCHURTER CLIPS BR BR RECTIFIER (AE9) DC PWR SKT FEMALE PIN CHASSIS CN9 FEMALE NTC To Switch INRUSH SUPP NTC0R LIVE F FUSE HOLDER 0MM PARK PARK NEUTRALTX NEUTRAL NEUTRALSW PARK EARTH EARTH C 0,000/HE0C C 0,000/HE0C DC PWR SKT FEMALE PIN CHASSIS CN0 Vin U9 8 GND FEMALE CN SIL M STRT FAN +V_TO_U C9 00N 00V/MLC R K C8 / V+ VREF NI V- R K0 U VC +VC CL UACN CS COMP VO VZ INV C R0 0P/DISK K % Q9 BC9 0 9 C8 00/ Q MJE0 R 0R R 0K R 00K R K8 Q8 SC R 0R W R8 0R W R K VR PR VA 0K C 00N 00V/MLC R K C9 / TH THERMISTOR BEAD R 8K R 0R0 LD LED T MM GREEN C 00/ D BYW8P-00 C0 / C 00/ R 00K R K R 8K +V CN CN U8B LM9 U8A LM9 +VC R 00K R 00K U N BASE AN COLL K EMIT NC PROTECT R0 R K K LD LED T MM RED D BZX8CV PROTECT R K0 Q BC9 R9 K C / 0 0 +V From Switch LIVESW R 8R % R9 8R % R0 8R % R 8R % To Transformer LIVETX P PIN-SOLDER.MM PARK PARK R K0 a ALLEN&HEATH CHK ISSUE BY DATE BY Kernick Industrial Estate, C MG --0 TITLE: Penryn, Cornwall, PAGE: England. TR0 9LU Tel: + (0)80 0 Fax: + (0)80 FILE: AG_P.Sch PRINTED: ::0 -Dec-00 DRG No: ISSUE: SHEET: OF RPS MAIN PCB CIRCUIT A B C D E F G H

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13 D +V_TO_U e d CN CN CN F FUSE HOLDER 0MM SCHURTER CLIPS C 00N 00V/MLC R0 K N00 R K BR BR RECTIFIER (AE9) R K R K C0 0,000/ C 0/ LESR C 0,000/ C 0,000/ C 00N 00V/MLC R K C8 00/ V+ VREF NI V- R K0 VC U CL UACN CS COMP VO VZ INV +VA C Q BC9 0 9 R8 0P/DISK K % C0 00/ Q MJE0 R9 0R R0 0K R K % R K0 Q SC R 0R W R 0R W R 0R W VR PR VA K0 R NF RES C 00N 00V/MLC D BYW8P-00 C / +VA R 00K R8 K CN U CNY- BASE AN COLL K EMIT NC +.V CN 0V PROTECT Q0 BC9 D8 BZX9CV LD LED T MM GREEN R9 K C / R 00K R8 0R0 D c b CN CN CN F FUSE HOLDER 0MM SCHURTER CLIPS C 00N 00V/MLC R K N00 R K BR BR RECTIFIER (AE9) R K R K C 0,000/ C 0/ LESR C 0,000/ C 0,000/ C 00N 00V/MLC R K C9 00/ V+ VREF NI V- R8 K0 U VC +VB UACN CS COMP VO VZ CL INV C 0 9 R9 0P/DISK K % Q MJE0 R 0R R K % Q SC R 0R W R8 0R W R9 0R W VR PR VA K0 C0 00N 00V/MLC C / +VB R 00K U BASE AN COLL K EMIT NC CNY- R K0 R NF RES Q BC9 C 00/ R 0K R 00K D BYW8P-00 CN -.V a TEMP CHK ISSUE BY DATE BY ALLEN&HEATH Kernick Industrial Estate, C MG --0 TITLE: Penryn, Cornwall, PAGE: England. TR0 9LU Tel: + (0)80 0 Fax: + (0)80 FILE: AG_CP.Sch PRINTED: :: -Dec-00 DRG No: ISSUE: C SHEET: OF RPS MAIN PCB CIRCUIT A B C D E F G H

14 e CN F FUSE HOLDER 0MM SCHURTER CLIPS D0 N00 D N00 D N00 D N00 C 000/00 U 8 Vin ADJ D N00 Vout C / D N00 R0 K R 80R R K C8 00N 00V/MLC C9 / D9 BZX9CV R9 0K D N00 R0 0K CN +8V 8 V+ V- U8C LM9 CN8 LD LED T MM GREEN d c b CN9 CN0 P PIN P PIN P PIN P PIN P PIN P PIN CN8 IEC MAINS INLET L N E IEC MAINS INLET C 00N 00V/MLC F FUSE HOLDER 0MM SCHURTER CLIPS DC PWR SKT FEMALE PIN CHASSIS CN9 FEMALE NTC INRUSH SUPP NTC0R F FUSE HOLDER 0MM LIVE NEUTRAL EARTH BR BR RECTIFIER (AE9) C 0,000/ C 0,000/ DC PWR SKT FEMALE PIN CHASSIS CN0 FEMALE EARTH PARK / INCH BLADE / TERMINAL INCH BLADE TERMINAL PARK PARK R R W CN FAN SIL M STRT +V_TO_U C9 00N 00V L/MLC R K C8 / V+ VREF NI V- R K0 U VC +VC UACN CS COMP VO VZ CL INV C R0 0P/DISK K % Q9 BC9 0 9 C8 00/ Q MJE0 R 0R R 0K R 00K R K8 Q8 SC R 0R W R8 0R W R K8 VR PR VA 0K C 00N 00V/MLC R K C9 / TH THERMISTOR BEAD R 8K R 0R0 LD LED T MM GREEN C 00/ D BYW8P-00 C0 / C 00/ R K R 9K R K +V CN CN U8B LM9 U8A LM9 +VC R 00K U CNY- BASE AN COLL R 00K K EMIT NC PROTECT R0 R K K LD LED T MM RED D BZX8CV PROTECT R K0 Q BC9 R9 K C / 0 0 P PARK PARK PARK PIN-SOLDER.MM a ALLEN&HEATH CHK ISSUE BY DATE BY Kernick Industrial Estate, C MG --0 TITLE: Penryn, Cornwall, PAGE: England. TR0 9LU Tel: + (0)80 0 Fax: + (0)80 FILE: AG_CP.Sch PRINTED: :: -Dec-00 DRG No: ISSUE: C SHEET: OF RPS MAIN PCB CIRCUIT A B C D E F G H

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16 ALLEN&HEATH RPS PSU Mains Voltage Setting For RPS units fitted with an Issue Main PCB On leaving the factory, the RPS power supply unit will be wired to operate at one of four different mains voltage ranges, depending on its destination: Mains Input Voltage Range: 00V AC +/- 0% 0V AC +/- 0% 0V AC +/- 0% 0V AC +/- 0% 0/0Hz 0/0Hz 0/0Hz 0/0Hz It is possible to reconfigure the RPS 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 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. Copyright 00 Allen & Heath Limited. All rights reserved. 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 : 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 : Remove the cover Remove the eight T0 Torx (star head) screws and lift off the cover. REMOVE x SCREWS REMOVE x SCREWS PER SIDE RPS Mains Voltage Setting

17 Step : Change the voltage setting Locate the mains inlet PCB. An issue board is shown here some early RPSs 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 PARK to PARK 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 0 Brown 0 Violet 0 Red 0 Black 00 Grey 90 Orange Step : 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 00V 0V ± 0% 0V 0V ± 0% Fuse type T 0A L 0V 0mm T 8A L 0V 0mm The mains fuse is located on the rear of the RPS 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 : 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 : Test Connect the unit to a mains supply at the new voltage. Power up and check for correct operation. RPS Mains Voltage Setting

18 ALLEN&HEATH RPS Transformer Wiring Details RPS Transformer A&H Part No. AM0 Iss. Date /0/0 PRIMARY SECONDARY Bwn 0mm 8AWG Blu 0mm 0AWG.0V No Load 0V o 0.A S P Whi 0mm AWG 0.V No Load o 9.@ A Vio 0mm 8AWG S 0V o Bwn 0mm AWG o 0V P Blk 00mm 0AWG Red 0mm 8AWG o.0v No Load 0V Org 00mm AWG S P o 0.V No Load S 9.@ A Blk 0mm 8AWG Yel 00mm AWG 0V o o 0V P Vio 90mm 0AWG 8.V No Load Grey 0mm 8AWG 00V o S Vio 90mm 0AWG P o 0V Ora 0mm 8AWG 90V o Red 0mm 0AWG.V No Load P Blu 0mm 8AWG S 0V o Red 0mm 0AWG Autoreset, 0deg o 0V Grn 0mm 8AWG Screen o Note: This transformer (Allen & Heath part no. AM0, iss.) is suitable for use with RPS units using issue /. main PCBs. Some early RPSs were produced using an issue C main PCB. The AM0 iss. 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.