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Megger MIT510 Manual

High voltage insulation testers
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MIT510, MIT520, MIT1020,
S1-552, S1-554, S1-1052 S1-1054
High Voltage Insulation Testers.
Issue 2
Date 17/08/06
COPYRIGHT © MEGGER LIMITED
6172-999

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Summary of Contents for Megger MIT510

  • Page 1 MIT510, MIT520, MIT1020, S1-552, S1-554, S1-1052 S1-1054 High Voltage Insulation Testers. Issue 2 Date 17/08/06 COPYRIGHT © MEGGER LIMITED 6172-999...
  • Page 2 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Compiled Date Used MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: Contents Page Section 1 Safety Warnings and Hazards. Section 2 Instrument Assembly and Disassembly. Section 3 Battery charge calibration. Section 4 Circuit Description Block Diagrams. Section 5 Circuit Diagrams Section 6...
  • Page 3 MIT1020 is a 10kV instrument. Only trained and qualified persons should service this product after a risk assessment. The copyright to this document is owned by Megger Ltd. This document must not be copied or reproduced in whole or part without the prior written consent of the copyright owner.
  • Page 4 Additional filtering menus are also available in the firmware Section 2 Instrument Assembly and Disassembly. Page MIT510/520 & 1020 Assembly. MIT510/520 & 1020 Disassembly. MIT510/520 & 1020 Assembly Numbers MIT510/520 & 1020 Drawings. Interconnect Diagrams.
  • Page 5 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Compiled Date Used MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: MIT Assembly. (Refer to Assembly Drawings) 2.1 Front Panel assembly. 1. Fit springs to high voltage shutter sockets and locate into recess of raised socket moulding guides. 2.
  • Page 6 MIT510 serial interface PCB 5140-988 MIT520/1020 serial interface PCB 5140-987 Assembly Drawing List 6430-861 MIT510/1020 Display Board Assembly. 6231-756 MIT510 Serial Interface Board Assembly. 6231-758 MIT520/1020 Serial Interface Board Assembly. 6231-716 MIT510/1020 Key Board Assembly 6331-804 MIT510/1020 Power Board Assembly.
  • Page 7 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: 2.4 Assembly Drawings.
  • Page 8 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled:...
  • Page 9 MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: 2.5 Interconnect Diagram for MIT510/MIT520 models Note: The W numbers shown on this diagram are not the same as W numbers on assembly drawings. Front Panel Display Board Keyboard Assy 6430-861 Assy 6231-716...
  • Page 10 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Compiled Date Used MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: Interconnect Diagram for MIT1020 models. Note: The W numbers shown on this diagram are not the same as W numbers on assembly drawings. Front Panel Display Board Keyboard...
  • Page 11 Battery’ button. Switch the unit back on and follow the sequence described above. The software is available for download from the Megger Limited website part number (6111-759). Support files for this will have to be downloaded from the Microsoft™ website. A CD version (including the necessary support files) is...
  • Page 12 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Compiled Date Used MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: Blank Page...
  • Page 13 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Compiled Date Used MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: Section 4. Electronic Circuit Description. Page 4.1 Power Board. 4.2 Display Board. 4.3 Key Board 4.4 Comms Boards. 15-16 4.5 Measurement Board. 4.6 ‘Hv’Board.
  • Page 14 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Compiled Date Used MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: Power Board, Display Board and Key Board Block Diagram. HV Module Battery Mains Battery Charger Protect Iso Tx Isolation Switch Reg Off Line Reg Emc Filter Battery Volts M onitor...
  • Page 15 USB Connect RS232 Connect USB Tx USB Rx USB detect Buffer Level Translate Or gate EEprom Switch 3.3 USB Instrument Connect The MIT510 serial board has the facility for USB communication, but the MIT510 instrument does not use USB communications.
  • Page 16 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: 3.3v iso Isolated Comms Iso Tx +10v iso Regulate & -- rail generate --10v iso RS 232 Buffer & RS232 Level Translate Iso Tx Drive &...
  • Page 17 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: Attenuated ‘Hv’ From ‘Hv’ board Ac Detect To ‘Hv’ board Discharge on/off M icro ‘Hv’ on/off Set ‘Hv’ Set current limit Break Down Detect Guard OK Current Overrange Fuse...
  • Page 18 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: 5240-429-A7 & below 5240-430-A9 & below HV Control Board Feedback Capacitance meas To ‘Meas’ board Set ‘Hv’ from ‘Meas’ board To ‘Meas’ board Attenuator Attenuator...
  • Page 19 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: HV Control Board Feedback 5240-429-A8 & above Capacitance meas 5240-430-A10 & above To ‘Meas’ board Set ‘Hv’ from ‘Meas’ board To ‘Meas’ board Attenuator Attenuator...
  • Page 20 SERVICE MANUAL Number 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: Section 5 Circuit Diagrams. Pages 5.1 Display Circuit Diagrams. 20 - 27 5.2 Keyboard and Engineering Board Circuit Diagrams. 28 - 31 5.3 Interface 10 &...
  • Page 21 Archcliffe Road, Dover, 6270-299 Kent, CT17 9EN, England Title Display PCB - Top Level Instrument: MIT510/520/1020 Issue Date CN No. Drawn By : James Patten 14-10-2005 22482 Date: Wednesday , March 17, 2004 02-11-2005 22500 © MEGGER LIMITED Size Sheet...
  • Page 22 0V(led) Display PCB - Power Signals & Range leds 330R Instrument: MEG05/10, models -10, -20 Issue Date CN No. Drawn By : James Patten 14-10-2005 22482 0V(led) Date: Tuesday , July 13, 2004 02-11-2005 22500 © MEGGER LIMITED Size Sheet...
  • Page 23 Screening can for Display PCB - IrDA & Backlight IrDA tranceiver Instrument: MEG05/10, models -10, -20 Issue Date CN No. Drawn By : James Patten 14-10-2005 22482 Date: Monday , Nov ember 08, 2004 02-11-2005 22500 © MEGGER LIMITED Size Sheet...
  • Page 24 Kent, CT17 9EN, England CNVss Title Display PCB - Controller EXTRST Instrument: MEG05/10, models -10, -20 Issue Date CN No. Drawn By : James Patten 14-10-2005 22482 Date: Wednesday , March 17, 2004 02-11-2005 22500 © MEGGER LIMITED Size Sheet...
  • Page 25 R273 47K R274 47K Instrument: MEG05/10, models -10, -20 Issue Date CN No. Drawn By : James Patten 14-10-2005 22482 Date: Tuesday , March 16, 2004 02-11-2005 22500 Components not f itted in model 10A. © MEGGER LIMITED Size Sheet...
  • Page 26 Display PCB - Power management IC12-4 TP190 TP191 LM339 Instrument: MEG05/10, models -10, -20 Issue Date CN No. CNVss Drawn By : James Patten 14-10-2005 22482 CNVss Date: 02-11-2005 22500 Wednesday , March 17, 2004 © MEGGER LIMITED Size Sheet...
  • Page 27 Kent, CT17 9EN, England Title TP130 Display PCB - Keyboard Signal Conversion Instrument: MEG05/10, models -10, -20 Issue Date CN No. Drawn By : James Patten 14-10-2005 22482 Date: Wednesday , March 17, 2004 02-11-2005 22500 © MEGGER LIMITED Size Sheet...
  • Page 28 SERVICE MANUAL Number 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: Keyboard and Engineering board circuit diagrams follow...
  • Page 29 MEGGER LIMITED Document Number Archcliffe Road, Dover, 6270-297 Kent, CT17 9EN, England Title MIT5&10-10/20 KEYPAD Instrument: MIT5XX & 10XX Issue Date CN No. Drawn By: T.Offley-Shore 03-11-2004 Date: Wednesday, February 19, 2003 <Issue2> <Date2> <CN2> © MEGGER LIMITED Size Sheet...
  • Page 30 MEGGER LIMITED Document Number Archcliffe Road, Dover, 6270-297 Kent, CT17 9EN, England Title MIT5&10-10/20 KEYPAD Instrument: MIT5XX & 10XX Issue Date CN No. Drawn By: T.Offley-Shore 03-11-2004 PCD Date: Wednesday, February 19, 2003 <Issue2> <Date2> <CN2> © MEGGER LIMITED Size Sheet...
  • Page 31 MEGGER LIMITED Document Number Archcliffe Road, Dover, 6270-297 Kent, CT17 9EN, England Title MIT5&10-10/20 KEYPAD Instrument: MIT5XX & 10XX Issue Date CN No. Drawn By: T.Offley-Shore 03-11-2004 PCD Date: Wednesday, February 19, 2003 <Issue2> <Date2> <CN2> © MEGGER LIMITED Size Sheet...
  • Page 32 SERVICE MANUAL Number 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: Interface 10 & 20 circuit diagrams follow...
  • Page 33 TP34 Archcliffe Road, Dover, 6270-296 Kent, CT17 9EN, England Title Interface PCB 10 & 20 Instrument: MIT5XX & 10XX Issue Date CN No. Drawn By: Simon Haynes 03-11-2004 Date: Tuesday, June 22, 2004 03-02-05 22235 © MEGGER LIMITED Size Sheet...
  • Page 34 100.00K BCW32 100.00K Interface PCB 10 & 20 100.00n Instrument: MIT5XX & 10XX Issue Date CN No. BAS16 50.00 Drawn By: Simon Haynes 03-11-2004 Date: Tuesday, June 22, 2004 03-02-05 22235 USB Present © MEGGER LIMITED Size Sheet and Voltage...
  • Page 35 SERVICE MANUAL Number 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: Isolated Interface circuit diagrams follow...
  • Page 36 Kent, CT17 9EN, England Title INTERFACE BOARD (ISOLATED) Instrument: MIT5XX & 10XX Issue Date CN No. GND_EARTH GND_EARTH Drawn By : Simon Hay nes 11-10-06 22841 ISOLATION Date: Tuesday , June 22, 2004 03-02-2005 22235 © MEGGER LIMITED Size Sheet...
  • Page 37 INTERFACE BOARD (ISOLATED) BAS16 50.00 Instrument: MIT5XX & 10XX Issue Date CN No. USB Pre se nt Drawn By : Simon Hay nes 11-10-06 22841 and Voltage Date: Tuesday , June 22, 2004 03-02-2005 22235 © MEGGER LIMITED Size Sheet...
  • Page 38 SERVICE MANUAL Number 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: Power supply circuit diagrams follow...
  • Page 39 2.2K 6270-295 Kent, CT17 9EN, England 0.063W Title POWER SUPPLY BOARD 0V mains Instrument: MIT5XX & 10XX Issue Date CN No. Battery MainsOnDetect Drawn By: C.Wedge 05-04-2005 22321 Date: Friday, April 12, 2002 05-05-05 22336 © MEGGER LIMITED Size Sheet...
  • Page 40 MEGGER LIMITED Document Number Archcliffe Road, Dover, 6270-295 Kent, CT17 9EN, England Title POWER SUPPLY BOARD Instrument: MIT5XX & 10XX Issue Date CN No. Drawn By: C.Wedge 05-04-2005 22321 Date: Friday, April 12, 2002 05-05-05 22336 © MEGGER LIMITED Size Sheet...
  • Page 41 MEGGER LIMITED Document Number Archcliffe Road, Dover, 6270-295 Kent, CT17 9EN, England Title POWER SUPPLY BOARD Instrument: MIT5XX & 10XX Issue Date CN No. Drawn By: L.Densham 22321 05-04-2005 Date: Friday, April 12, 2002 05-05-05 22336 © MEGGER LIMITED Size Sheet...
  • Page 42 MEGGER LIMITED Document Number Archcliffe Road, Dover, 6270-295 Kent, CT17 9EN, England Title POWER SUPPLY BOARD Instrument: MIT5XX & 10XX Issue Date CN No. Drawn By: C.Wedge 05-04-2005 22321 Date: Friday, April 12, 2002 05-05-05 22336 © MEGGER LIMITED Size Sheet...
  • Page 43 SERVICE MANUAL Number 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: Measurement circuit diagrams follow...
  • Page 44 Archcliffe Road, Dover, 6270-298 Kent, CT17 9EN, England Title Measurement Board - Block Diagram Instrument: MIT5XX & 10XX Issue Date CN No. Drawn By : C.Wedge 22-02-2006 22621 Date: Wednesday , August 14, 2002 06-03-2006 22636 © MEGGER LIMITED Size Sheet...
  • Page 45 Kent, CT17 9EN, England Title Measurement Board - Current Measurement 0V(A) Instrument: MIT5XX & 10XX Issue Date CN No. 100n Drawn By : C.Wedge 22-02-2006 22621 Date: Wednesday , August 14, 2002 06-03-2006 22636 Guard band (0VA) © MEGGER LIMITED Size Sheet...
  • Page 46 Archcliffe Road, Dover, 6270-298 Kent, CT17 9EN, England Title Measurement Board - Power Supply Instrument: MIT5XX & 10XX Issue Date CN No. Drawn By : C.Wedge 22-02-2006 22621 Date: Wednesday , August 14, 2002 06-03-2006 22636 © MEGGER LIMITED Size Sheet...
  • Page 47 6270-298 0V(D) Kent, CT17 9EN, England Title 0V(D) Measurement Board - IRDA Link Instrument: MIT5XX & 10XX Issue Date CN No. Drawn By : C.Wedge 22-02-2006 22621 Date: Wednesday , August 14, 2002 06-03-2006 22636 © MEGGER LIMITED Size Sheet...
  • Page 48 Kent, CT17 9EN, England LM339 R298 Title 100K 4066 Measurement Board - ADC 0V(A) Instrument: MIT5XX & 10XX Issue Date CN No. Drawn By : C.Wedge 22-02-2006 22621 Date: Wednesday , August 14, 2002 06-03-2006 22636 © MEGGER LIMITED Size Sheet...
  • Page 49 Measurement Board - Voltage Meas. & Guard Fuse Monitor Guard Fuse Monitor Instrument: MIT5XX & 10XX Issue Date CN No. Drawn By : C.Wedge 22-02-2006 22621 <Variant Name> Date: Wednesday , August 14, 2002 06-03-2006 22636 0V(A) © MEGGER LIMITED Size Sheet...
  • Page 50 Kent, CT17 9EN, England Title Not f itted 0V(D) Measurement - Controller Instrument: MIT5XX & 10XX Issue Date CN No. Drawn By : C.Wedge 22-02-2006 22621 R224 0R Date: Wednesday , August 14, 2002 06-03-2006 22636 © MEGGER LIMITED Size Sheet...
  • Page 51 SERVICE MANUAL Number 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: 5KV Generator circuits follow...
  • Page 52 470p discharge- Archcliffe Road, Dover, 6270-300 Kent, CT17 9EN, England Title 5kV HV BOARD 0V-PWR Instrument: MIT5XX Issue Date CN No. Drawn By : L.Densham 15-02-06 22608 Date: Monday , December 31, 2001 11-07-06 22737 © MEGGER LIMITED Size Sheet...
  • Page 53 MEGGER LIMITED Document Number Archcliffe Road, Dover, 6270-300 Kent, CT17 9EN, England Title 5kV HV BOARD Instrument: MIT5XX Issue Date CN No. Drawn By : L.Densham 15-02-06 22365 Date: Monday , December 31, 2001 11-07-06 22309 © MEGGER LIMITED Size Sheet...
  • Page 54 SERVICE MANUAL Number 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: 10 KV Generator circuits follow...
  • Page 55 Archcliffe Road, Dover, 6270-301 0.063W 0.063W 1N4002 1N4002 Kent, CT17 9EN, England Title 10kV HV BOARD 0V-PWR Instrument: MIT1020&30 Issue Date CN No. Drawn By : L.Densham 11-07-06 22737 Date: Monday , December 31, 2001 21-09-05 22438 © MEGGER LIMITED Size Sheet...
  • Page 56 MEGGER LIMITED Document Number Archcliffe Road, Dover, 6270-301 Kent, CT17 9EN, England Title 10kV HV BOARD Instrument: MIT1020&30 Issue Date CN No. Drawn By : L.Densham 11-07-06 22737 Date: Monday , December 31, 2001 21-09-05 22438 © MEGGER LIMITED Size Sheet...
  • Page 57 SERVICE MANUAL Number 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: Section 6 Component Layouts Page 6.1 Display Board 6.2 Keypad Board 6.3 Interface 10 & 20 Board 6.4 Isolated Interface Board 6.5 Power Supply Board 6.6 Measurement Board 6.7 5KV Generator Board 6.8 10KV Generator Board...
  • Page 58 SERVICE MANUAL Number 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: Display PCB 5240-430-A9 Drawing Issue 6 SK30 MTHOLE_1 MTHOLE_2 MTHOLE_3 FIDMARK1 FIDMARK2 TR38 R304 R288 TR39 R286 R287 IC26 TR10 TR12 TR11 TR13 R289 R290...
  • Page 59 SERVICE MANUAL Number 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: Keyboard PCB 5240-432-A5 Drawing Issue 1 Note: Is a 2 board plaque. Upper centre part (engineering board) is snapped off from keyboard. PLUG PLUG MTHOLE_17...
  • Page 60 SERVICE MANUAL Number 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: 510 comms PCB 5140-988-A2 Drawing Issue 2 FIDMARK1 FIDMARK2 IC11 IC10...
  • Page 61 SERVICE MANUAL Number 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: 520 Isolated Comms PCB 5140-987-A3 Drawing Issue 1 IC10...
  • Page 62 SERVICE MANUAL Number 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: PSU PCB 5240-431-A9 Drawing Issue 3 FIDMARK1 FIDMARK2 MTH1 TR10 TR11 TP16 TP13 TP15 TP14 TP12 TP17 MTH2 BREAK6 BREAK5 BREAK4...
  • Page 63 SERVICE MANUAL Number 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: Measurement PCB 5240-428-A12 Drawing Issue 5 C110 MTH1 MTH3 C111 C132 C112 IC13 C102 IC26 C113 C133 C103 SK11 C130 R279 R278 IC25 C115 C104...
  • Page 64 SERVICE MANUAL Number 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: 5KV HV PCB 5240-430-A10 Drawing Issue 6 FIDMARK1 FIDMARK2 BAR_CODE_LABEL_CON BAR_CODE_LABEL_SM MTH2 MTH4 MTH5 SK11 SK12 R130 R131 R112 MTH3 MTH6 R148 R149 R151 SK14...
  • Page 65 SERVICE MANUAL Number 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: 10 KV HV PCB 5240-429-A9 FIDMARK1 FIDMARK2 MTH1 BAR_CODE_LABEL_CON MTH5 BAR_CODE_LABEL_SM MTH7 SK11 SK17 R133 R134 R127 R128 MTH2 MTH9 R129 MTH4 MTH12 R120 R116...
  • Page 66 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Compiled Date Used MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: Section 7. BOM’s. Page 7.1 Display Board 7.2 Key Board and Engineering Board. 7.3 Communication Interface & Isolated Interface 70-71 7.4 Power Board. 72-73 7.5 Measurement Board.
  • Page 67 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Compiled Date Used MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: 7.1 Display Board BOM – circuit diagram 6270-299 issue12 Display Board Bill of Materials Value Part Reference PARTNUM 6280-355 470u C1 C9 C75 C83 27890-012 100nF C2 C3 C10 C11 C14 C15 C24 C25 C27 C30 C37 C40 C48 C49 C51 C52 C53...
  • Page 68 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Compiled Date Used MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: R104 R105 R106 R113 R119 R120 R124 R125 R126 R128 R129 R131 R132 R133 R136 R138 R139 R156 R157 R164 R178 R179 R182 R185 R191 R193 R194 R195 R275 R276 R277 R278 R279 R280 R281 R282 R293 R294 R295 R296 R297 R304 R305 R306 R309 R32 R36 R93 R94 R101 R102 R308...
  • Page 69 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Compiled Date Used MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: 7.2 Keyboard and Engineering Board BOM – circuit diagram 6270-297 issue 1 Keyboard Bill of Materials Value Part Reference PARTNUM 470.00nF C1 C8 32000-042 100.00n C2 C4 C5 C6 C7 C9 C11 C12 C13 C14 C20 C22 C27 C29...
  • Page 70 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Compiled Date Used MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: 7.3 Interface 10 & 20 BOM – circuit diagram 6270-296 issue 2 Value Part Reference PARTNUM 1.00n C2 C8 C20 C25 32000-027 1.00uF 32000-044 100.00n...
  • Page 71 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Compiled Date Used MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: 7.4 Isolated Board BOM – circuit diagram 6270-306 issue 2. Value Part Reference PARTNUM 100.00n C1 C9 C10 C19 32000-029 1.00n C2 C8 C20 C25 32000-027 3.30n 26970-131...
  • Page 72 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Compiled Date Used MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: 7.5 Power Board BOM – circuit diagram 6270-295 issue 5 PSU Board Bill of Materials Value Part Reference PARTNUM KBU6J 28920-038 100pF C1 C13 26970-165 100nF...
  • Page 73 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Compiled Date Used MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: 4.99R 26900-263 100K R42 R49 33000-003 33000-016 29250-002 5.6R 26900-183 2.2K R52 R53 33000-033 33000-024 33000-012 33000-114 300.00R SK1 SK2 25418-213 35965-002 2N7002 TR2 TR4 TR7 31000-016...
  • Page 74 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Compiled Date Used MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: 7.6 Measurement Board BOM – circuit diagram 6270-298 issue 12 Measurement Board Bill of Materials Value Part Reference PARTNUM 100nF C2 C4 C5 C7 C10 C12 C13 C14 C15 C35 C38 C40 C43 C44 C45 C46 C47 C55 32000-004 C56 C61 C63 C65 C70 C79 C80 C81 C82 C83 C84 C85 C90 C91 C93 C115 C125 C127 C128 C129 C130 C131 C132 C116 C118 C124 C133 C138 C139 C140 C141 C145 C146...
  • Page 75 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Compiled Date Used MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: R1 R5 R17 R22 R36 R49 R68 R79 R82 R83 R84 R117 R119 R261 R289 R290 33000-031 R305 R307 R311 R314 R315 R316 R321 100K R3 R9 R11 R19 R26 R32 R37 R60 R63 R75 R76 R77 R78 R95 R99 R100 R101 33000-042 R102 R110 R118 R120 R254 R264 R265 R279 R280 R281 R282 R298...
  • Page 76 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Compiled Date Used MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: 7.7 5Kv Board BOM – circuit diagram 6270-300 issue 10 5kv Board Bill of Materials Value Part Reference PARTNUM C1 C6 C8 C9 C12 C14 26970-087 220u C2 C4...
  • Page 77 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Compiled Date Used MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: R33 R59 R66 R73 33000-026 2.2K R38 R76 33000-033 R41 R44 R70 R72 33000-040 1.5K R56 R125 33000-032 33000-039 R60 R61 R63 33000-038 R62 R120 R121 R156 33000-031...
  • Page 78 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Compiled Date Used MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: 7.8 10Kv Board BOM - circuit diagram 6270-301 issue 6 10kv Board Bill of Materials Value Part Reference PARTNUM 100n C1 C8 C11 C12 C39 27889-836 27889-890 470u...
  • Page 79 Number SERVICE MANUAL 6172-999 Issue AF008-02-1201 Date 17-01-07 Compiled Date Used MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: 3.9K R47 R71 33000-116 6.8K 33000-036 33000-010 1.5K 33000-032 R54 R88 R115 R118 33000-026 4.7K R55 R62 R72 R116 R119 33000-035 R56 R69 R73 R74 R75 R77 R84 R95 R97 R111 R112 33000-037 R57 R81 R82 33000-038...
  • Page 80 The software is available for download from the Megger Limited website part number (6111-759). Support files for this will have to be downloaded from the Microsoft™ website. A CD version (6111-760) (including the necessary...
  • Page 81 SERVICE MANUAL Number 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: Appendix1 Common Faults Symptom Cause Unit does not output HV, but seems to work HV enable jumper has fallen off HV board. Replace jumper normally Capacitance lead broken / not present...
  • Page 82 Firmware Error Codes. Error Code Error Cause and description 1 to 11 Internal Software Error. Please report this to Megger with details on how to repeat the fault. Buzzer drive is unstable. Buzzer drive pull down has failed. EEPROM receive has failed.
  • Page 83 SERVICE MANUAL Number 6172-999 Issue AF008-02-1201 Date 17-01-07 Used Compiled Date MIT5XX/10XX S.Mynott 08/08/06 CN Number 22933 Compiled: Appendix 3. Firmware Updates. Release Date of release Display board Measurement board Initial July 2005 98.98 98.98 Added MITx20 January 2006 0.89 0.75 Added S1-x52 February 2006...
  • Page 84 25955-025 USB type A to type B cable 25970-041 USB cable Download Manager software CD 6111-442 User Guide and Quickstart CD (MIT510) 6172-929 User Guide and Quickstart CD (MIT520/1020) 6172-960 User Guide and Quickstart CD (S1-552/1052/554/1054) 6172-988 Keyboard PCB (MIT5XX & 10XX) 6231-716 Power PCB (MIT5XX &...

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Mit520Mit1020S1-552S1-554S1-1052S1-1054