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Mortara Instrument ELI 100 Service Manual

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REF 9507-008-50 REV E1
ELI 100 Service Manual
CAUTION: Federal law restricts this device to sale by or on the order of a physician.

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Summary of Contents for Mortara Instrument ELI 100

  • Page 1 REF 9507-008-50 REV E1 ELI 100 Service Manual CAUTION: Federal law restricts this device to sale by or on the order of a physician.
  • Page 3 This document contains confidential information that belongs to Mortara Instrument, Inc. No part of this document may be transmitted, reproduced, used, or disclosed outside of the receiving organization without the express written consent of Mortara Instrument, Inc. Mortara is a registered trademark of Mortara Instrument, Inc. ELI 100 is a trademark of Mortara Instrument, Inc.

  • Page 5: Table Of Contents

    Table of Contents General Service Manual Purpose ......................1-1 User Safety Information ......................1-1 Periodic Safety Inspections ..................1-1 Proper Power Cord ....................1-1 Proper Fuse ......................1-1 Do Not Operate in Explosive Atmospheres .............1-1 Use Only Safe Methods of Interconnection .............1-1 Do Not Mount Product above Patient ..............1-1 Recommended Accessories ..................1-1 Sterilizing this Product .....................1-2 Liquid Spills ......................1-2...
  • Page 6 Technical Description Introduction (Technical) ......................3-1 Processor Module (MPM) .....................3-1 Modem Module (MMM) ......................3-1 Main System Board ......................3-2 RS-232 Level Serial Port / High Speed Serial Port ..........3-2 Writer Interface ......................3-2 Writer Motor Control ....................3-2 Printhead Signal and Power Interface ..............3-3 Keyboard Interface ....................3-3 LCD Interface ......................3-3 Patient Input ......................3-4...
  • Page 7 Base Assembly Parts List #2 - Base Assembly ....................5-1 Base Assembly Notes ......................5-3 4” Writer Assembly Parts List #3 - Writer ......................6-1 Writer Assembly Notes ......................6-3 Printed Circuit Boards Introduction to Printed Circuit boards ..................7-1 Motherboard Ref: 26025-002-50 ................7-2 Motherboard Board Assembly Notes ..............7-5 Motherboard Schematic Sheet 1 ................7-6 Motherboard Schematic Sheet 2 ................7-7 Motherboard Schematic Sheet 3 ................7-8...
  • Page 8 Direct Receive ......................8-10 Modem Transmission ....................8-11 Modem Receive .......................8-11 Writer Self Test ......................8-12 Description of Leakage Tests ..................8-12 Leakage Tests ......................8-12 Earth Leakage Current Measurement ..............8-12 Chassis Leakage Current Measurement ..............8-14 Patient Leakage Current Measurement ..............8-15 Line Voltage Applied to Patient Connection Leakage Current Measurement ..8-16 Ground Integrity Test ....................8-16 Appendix Testing and Troubleshooting...
  • Page 9 4-m Tape Placement ........................4-13 5-a Complete Base Assembly .....................5-2 5-b Installing Tie Downs ......................5-3 5-c Labeling and Assembly of Batteries ..................5-4 5-d Installing Printed Circuit Board .....................5-5 6-a Complete Writer Assembly ....................6-2 6-b Addition of Date Code Label and Bench testing ..............6-3 6-c Installing Printhead and Copper Braid Cable ................6-4 6-d Installing E-Rings to Cover ....................6-5 6-e Installing Main Pivot Shaft ....................6-6...
  • Page 10 B-h Installation of R102........................B-8 B-i Installation of R101 .........................B-8 B-j Installation of CR2 ........................B-9 B-k Modem Module (MMM) 16 MRAM Schematic Ref: 26025-003-51 ........B-10 C-a Mortara Receiver Module (MRM-915) PCB Assembly Complete Ref: 26125-001-50..C-1 C-b Shield Can Installation Holes ....................C-2 C-c Installation of Shield Can.......................C-2 C-d Installation of Connectors......................C-3 C-e Mortara Receiver Module (MRM-2500) PCB Assembly Complete Ref: 26125-002-50..C-4...

  • Page 11: General

    General Service Manual Purpose The purpose of this manual is to supply information to service personnel so they can maintain the ELI 100 12-Lead Electrocardiograph at the assembly and subassembly level. Although the manual includes parts lists, mechanical assembly parts, and printed circuit board information, it is intended to function primarily as a guide to preventative and corrective maintenance and electrical repairs considered field repairable.

  • Page 12: Sterilizing This Product

    Do not sterilize this product or any accessories unless specifically directed by the manufacturer. Sterilization and sterilization environments can seriously damage many components and accessories. Liquid Spills Do not set beverages or other liquids on or near the ELI 100, and/or optional equipment. System Information Log See Appendix "A" of Operator's Manual...

  • Page 13: Maintenance And Cleaning

    In addition, all ECGs stored in memory will be lost. Introduction This section provides servicing and maintenance instructions for the ELI 100 interpretive electrocardiograph. Subsequent parts of this section are disassembly, inspection techniques, cleaning techniques, and installation.

  • Page 14: Cleaning And Inspection Techniques

    ELI 100_____________________________________________________________________________ Cleaning and Inspecting Techniques: This section contains instructions for periodic cleaning and inspection of the instrument as preventative maintenance measures. It also contains specific cleaning procedures to be conducted after disassembly. Parts having identical cleaning procedures are grouped under common headings. No special tools are required. Interior Cleaning: WARNING Ventilate work area thoroughly when using solvents.

  • Page 15: Metallic And Plastic Parts Cleaning

    ____________________________________________________________________________Section 2 Metallic and Plastic Parts Cleaning CAUTION Do not wipe over surfaces of nameplates or labels with abrasive cleaners or materials, as this will eventually wear away the nameplate information. Do not use solvents to clean plastic parts. Brush all surfaces and parts with a nonmetallic, soft bristle brush. Wipe metal surfaces with soft, nonabrasive cloth dampened with isopropyl.

  • Page 16: Exterior Inspection

    ELI 100_____________________________________________________________________________ Exterior Inspection Visually inspect the entire instrument for wear, maintenance damage, corrosion, deterioration, and damage resulting from dropping. Interior Visual Inspection Check components, wiring, solder joints and printed circuit conductor patterns. Check all connectors for loose, bent or corroded contact points Check wire, harnesses and cables for signs of wear or deterioration.

  • Page 17: Cover Assembly Removal / Installation

    ____________________________________________________________________________Section 2 Cover Assembly Removal / Installation Open the writer cover and remove the six flathead screws securing it. They are located at the front and on both sides of the unit, near the bottom. Lift the cover assembly gently and tilt it towards the right side of the unit as seen from the front. Set the cover assembly on its right side.

  • Page 18: Paper Drive Motor Removal / Installation

    ELI 100_____________________________________________________________________________ Paper Drive Motor Removal / Installation: The writer must be removed from the unit first. Then, remove the screws, which hold the paper tray to the writer chassis. Lift the paper tray part way. Using a 1.3 mm Allen wrench, loosen the set screw on the motor gear and slide the gear off the shaft. Remove the two mounting screws, which hold the motor to the chassis.

  • Page 19: Lcd Removal / Installation

    ____________________________________________________________________________Section 2 CAUTION Before reassembling in reverse order contact the manufacture to insure the proper keyboard replacement part number. Orientation for the J4 keyboard plug is as follows: P12 is marked with a 1 on one half of the flex tape. This half of P12 goes to J4 pin 9. The other half of the flex tape is marked with a 9.
  • Page 20 ELI 100_____________________________________________________________________________ Disconnect the Battery Interconnect Leads. Remove the Batteries. CAUTION Be sure that the polarity of the batteries is correct, In addition, the batteries should be in series for a total voltage of 18V or more. Use only Mortara replacement batteries, Mortara part #4800-003, 6V, DC, 1-Amp, Gel cell. Reassemble in reverse order.

  • Page 21: Technical Description

    The MORTARA ELI 100 is an advanced interpretive electrocardiograph system utilizing the latest electronic technology and software. The ELI 100 offers 12 lead patient ECG monitoring, a 2 line by 40 character LCD display, a full function touchpad keyboard, a 4-inch thermal writer for printing waveforms and interpretive data, a real-time electronic clock and calendar, an RS-232 level serial communications port, internal MODEM, a high- speed logic-level serial communications port, and internal power supply, batteries, and battery re-charge circuitry.

  • Page 22: Main System Board

    The RS-232 communication data rate is programmable up to 38,400 bps or 57,600 bps when the ELI 100 is configured as a ST Monitor. Note connector J11 on the ELI 100 schematics for the pin numbers used for RS-232 communication.

  • Page 23: Printhead Signal And Power Interface

    ____________________________________________________________________________Section 3 Printhead Signal and Power Interface The printhead signal interface is accomplished through the Mortara propriety Thermal Printhead gate array (TPH_GA), U2. Static RAM chip U1 is used by the TPH_GA in performing dot hysteresis control. U20 simply buffers signals to the printhead, while RP5 forms a filter with the cable capacitance to help reduce EMI emissions.

  • Page 24: Patient Input

    ELI 100_____________________________________________________________________________ The 2 x 40 character LCD display is mounted on the inside of the top cover with the cable extending to the left as the cover is viewed from the operator's normal viewing position. The active area of the LCD display is visible through the protective plastic window directly above the keyboard.

  • Page 25: Power Supply

    Power Supply AC Input Power AC power connected to the ELI 100 at the back of the unit using a suitable line cord. The voltage selector tumbler setting and fuse ratings must match the voltage applied to the unit. The AC power switch, located on the back of the unit must be in ON position to power the unit from the AC source and to change batteries.

  • Page 26: 5V Back-Up Supply

    ELI 100_____________________________________________________________________________ 5V Back-up Supply The 5V back-up supply (U9 and associated components) supplies power to devices which, must operate or save memory when the 5V logic supply is off. The output voltage of this supply is a actually approximately 4.6 volts.

  • Page 27: Block Diagram

    ____________________________________________________________________________Section 3 Block Diagram A/C Power...

  • Page 28: Keyboard Matrix

    The ELI 100 operates on AC power or on an internal battery which can be charged by doing the following: Connect the ELI 100 to AC power using the power cord provided. Turn the power switch located on the back of the ELI 100 to the ON position (1/0).

  • Page 29: Interconnection Diagram 1

    ____________________________________________________________________________Section 3 Interconnection Diagram 1 GROUND BATTERIES AC POWER POWER INLET SWITCH AND FUSES RS-232 / HIGH SPEED SERIAL DATA THERMAL WRITER M M M MOTOR SLOT PRINTHEAD DATA /POWER M P M SLOT J3 DEBUG (UNUSED) INPUT LCD DISPLAY KEYBOARD...

  • Page 30: Interconnection List

    ELI 100_____________________________________________________________________________ Interconnection List RS-232 / High-Speed Serial Data Port Connector: Pin #: Name: Description: XROUT High-Speed Data Output Receive Data Transmit Data Data Terminal Ready SHGND Ground Reference ENMUX +5V for External Module Data Set Ready Clear to Send XRIN High-Speed Data Input AC Power Input...

  • Page 31: Writer Control / Power

    ____________________________________________________________________________Section 3 Writer Control / Power Connector: Pin #: Name: Description: Chassis Ground VHEAD Printhead Element Power Chassis Ground VHEAD Printhead Element Power Chassis Ground VHEAD Printhead Element Power Chassis Ground VHEAD Printhead Element Power Chassis Ground VHEAD Printhead Element Power TPH_EN Printhead Enable Chassis Ground...

  • Page 32: Lcd Display Interface

    ELI 100_____________________________________________________________________________ LCD Display Interface Connector: Pin #: Name: Description: LCD Signal / Power Return 5V Power to LCD CONTR LCD Contrast Voltage LCD Register Select LCD Read / Write Control LCD Enable BDAT8 Data Bus Signal BDAT9 Data Bus Signal BDAT10 Data Bus Signal BDAT11...

  • Page 33: Engineering Debugger Interface

    ____________________________________________________________________________Section 3 Engineering Debugger Interface Connector: Pin #: Name: Description: System Ground DSCLK Engineering Debugger SUPPORT System Ground FREEZE Engineering Debugger SUPPORT RESETn System Reset Engineering Debugger SUPPORT 5V Power Engineering Debugger SUPPORT 3-13...
  • Page 34 ELI 100_____________________________________________________________________________ 3-14...

  • Page 35: Final Assembly

    ____________________________________________________________________________Section 4 Final Assembly Parts List #1 QTY: DESCRIPTION: PART NUMBER: ITEM: 34000-015-1000, 1001, 1006, AND 1011 Fuse Type T 250V 315mA 5 x 20 Slo-Blo 4021-003 Fuse Carrier 5 x 20mm Black 4115-008 Keyboard 46 Key Assembly Domestic 4160-012-50 Keyboard 46 Key Assembly International 4160-012-52 Screw Phillips Panhead M3 x 6...
  • Page 36 ELI 100_____________________________________________________________________________ Figure 4-a Completed Final Assembly...

  • Page 37: Modem Card Optional Assembly Procedure

    ____________________________________________________________________________Section 4 Figure 4-b Assembling Modem Card Modem Card optional Assembly Procedure: (For Production of 41000-007-51 Modem Kit Domestic) • Remove the modem Closing Plate (Item 15), located at the back of the unit, from the base by removing the 2 Screws (Item 8).

  • Page 38: Modem Options

    ELI 100_____________________________________________________________________________ Figure 4-c Modem Installation Modem Options: Reference Bill of Materials: 41000-007-50 Field Installed Modem Kit Domestic 41000-007-51 Factory Installed Modem Kit Domestic 41000-007-52 Factory Installed Australian Modem Kit 41000-007-55 Field Installed Modem Kit EC / International 41000-007-56 Factory Installed Modem EC/ International...
  • Page 39 ____________________________________________________________________________Section 4 Figure 4-d Label Placement on Writer Place Label (Item D) on writer as shown. See Label Chart in following pages.
  • Page 40 ELI 100_____________________________________________________________________________ Figure 4-e Serial Number and Part Number Label Placement on Bottom of Unit. Attach Serial Number and Part Number label (G) as shown above. See Label Chart in following pages.
  • Page 41 ____________________________________________________________________________Section 4 Figure 4-f Label Placement on Unit.
  • Page 42 ELI 100_____________________________________________________________________________ Fig 4-g Label Chart Figure 4-h Ground Label Placement on Unit. Install Protective Earth Ground Label adjacent to ground post as shown above. Refer to parts lists on page 1 this section.
  • Page 43 ____________________________________________________________________________Section 4 Figure 4-i Cover on Base Installation, see notes on next page.
  • Page 44 ELI 100_____________________________________________________________________________ Assembly notes: Attach the following cables from the cover to the base in the following order: • Connect cable from the cover LCD Display to J1 on the base printed circuit board. • Connect cable from the cover Keyboard to J4 on the base printed circuit board. •...
  • Page 45 ____________________________________________________________________________Section 4 Figure 4-k Writer Installation Center assembled writer evenly on both sides opening. Secure the writer to the cover using 4 Screws (Item 10 and 39), 6 Flat Washers (Item 30); stack 3 under ground lug. Add Lug of Ground Cable Assembly (Item 26) on the screw toward the left front corner of the cover. Note: The Ground Cable Assembly (Item 26) runs between the Keyboard Stud and the Writer Stud.
  • Page 46 ELI 100_____________________________________________________________________________ Figure 4-l LCD and Keyboard Installation 4-12...
  • Page 47 ____________________________________________________________________________Section 4 Mount the LCD Display Assembly (Item 22) to the underside of the cover with 4 Screws (Item 7). Note: The polarizing key must be assembled up towards the cover. Plug the LCD Ribbon Cable (Item 24) into the end of the LCD Assembly (Item 22) with polarizing key oriented as shown in view on previous page.
  • Page 48 ELI 100_____________________________________________________________________________ 4-14...
  • Page 49 ____________________________________________________________________________Section 5 Base Assembly Parts List #2 QTY: DESCRIPTION: 33999-003-50 PART NUMBER: ITEM: Chassis Assembly 8483-009-50 ELI 100A PCB 26025-002-50 Collar Patient Connector 8483-010-01 Battery Bracket Assembly 8551-026-50 Cable Assembly AC Switch & Leads 14050-012-51 Connector AC & Leads 14050-011-51 Cable Battery To Battery 25020-032-50 Cable Tie Locking 3.9 x .10...
  • Page 50 ELI 100_____________________________________________________________________________ Figure 5-a Complete Base Assembly...
  • Page 51 ____________________________________________________________________________Section 5 Figure 5-b Installing Tie Downs Install Cable Ties (Item 9) as shown Install completed battery assembly using 2 Screws (Item 18) and 2 Lockwashers (Item 17). Install Tie Wraps (Item 27) around wires from battery to board with Screws (Item 28).
  • Page 52 ELI 100_____________________________________________________________________________ Figure 5-c Labeling and Assembly of Batteries Place labels from Label Set (Item 24) onto battery bracket as shown. The connection diagram label is 12000-060- 04 and the disconnect label is 12000-060-02. Refer to Final assembly for items "B" and "C" and label set. Cut Tape (Item 12) to dimensions shown.
  • Page 53 ____________________________________________________________________________Section 5 Figure 5-d Installing Printed Circuit Board Install Feet (Item 13) on Base (Item 1) using Phillips Screw (Item 20). Insert AC Switch Assembly (Item 6) and AC Connector (Item 7) as shown. Snap blue lead from AC Switch (Item 6) into Connector Assembly (Item 7) Pin 5 and the violet lead into connector pin 6.
  • Page 54 ELI 100_____________________________________________________________________________ Components of Label Set T 2A 250 V -01 Rear Label -02 Battery Disconnect Warning Label T 315mA 250 V -03 Fuse Rating Label BATT + J12 PIN 1 BATTERY REF: 4800-003 J12 PIN 2 -04 Battery Connection Guide Label...
  • Page 55 ____________________________________________________________________________Section 5 -05 Paper Trough Label 100/120/220/240 V~ 50/60 Hz 40VA -06 Serial Number Window Label -07 ECG Input Label COMPLIES WITH PART 68, FCC RULES FCC REGISTRATION NUMBER: HJRUSA-74114-DT-E RINGER EQUIVALENCE: 0.3A 0.3B USOC JACK: RJ11 MADE IN U.S.A. -08 Closing Plate with Modem Label -09 Closing Plate without Modem Label...
  • Page 56 ELI 100_____________________________________________________________________________ -10 Closing Plate with Modem Label - European THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION.
  • Page 57 ____________________________________________________________________________Section 6 4” Writer Assembly Parts List #3 QTY: DESCRIPTION: 22500-100-50 PART NUMBER: ITEM: Printhead thermal 104mm kyocera - 4.09" 5450-002-01 Screw shoulder hex M3 x 0.5 Stainless 6001-002-01 Screw Phillips Fillister M2 x 5 6020-120 Screw Phillips Flat M3 x 6 6020-730 Screw Sems M3 x 10mm W/2 Captive 6024-005...
  • Page 58 ELI 100_____________________________________________________________________________ Figure 6-a Complete Writer Assembly...
  • Page 59 ____________________________________________________________________________Section 6 Figure 6-b Addition of Date Code Label And Bench Testing Place the writer on assembly fixture Ref: 90000-014-50. Locate the writer on the assembly fixture with the four mounting holes in the writer over the four pins on the assembly fixture. Press down on the writer trough and the white spring pads and hold down.
  • Page 60 ELI 100_____________________________________________________________________________ Figure 6-c Installing Printhead and Copper Braid Cable Attach one end of the Braided Copper Cable (Item 46) to the top of the main cover and the other end to the bottom of the chassis using a Sems Screw (Item 6) at each end. Caution: Writers with printheads installed will be treated as static sensitive according to MIS-01-001-00.
  • Page 61 ____________________________________________________________________________Section 6 Figure 6-d Installing E-Rings to Cover Retain the Cover Assembly with four E-Rings (Item 15). Place two E-Rings in the grooves nearest the inside surface of the Cams. Place two more E-Rings at the ends of the Main Pivot Shaft. Check whether the Spring Functions correctly and does not contact the Main Cover when it is opened and closed.
  • Page 62 ELI 100_____________________________________________________________________________ Figure 6-e Installing the Main Pivot Shaft Hold the Main Pivot Shaft (Item 27) with the end with three grooves toward the motor side of the chassisassmebly. Slide the Main Pivot Shaft through the pivot hole in the main cover assembly. Through the pivot hole in the main chassis, through a Cam (Item 37) with its notch placed in a matching notch in the main cover, and though both ears of the spring bar.
  • Page 63 ____________________________________________________________________________Section 6 Figure 6-f Installation of Spring Bar. Insert the Spring Bar (Item 36) from the inside of the chassis into slots near the pivot end of the chassis assembly.
  • Page 64 ELI 100_____________________________________________________________________________ Figure 6-g Installing Slider Plate Turn the cover assembly over. Attach the Anti-friction Teflon Tape (Item 30) to the main cover as shown above. Tape must be kept 3/16" away from the slotted holes. Place the hooks on the Alider Plate (Item 39) over the rear edge of the main cover and then snap it down over the latch posts.
  • Page 65 ____________________________________________________________________________Section 6 Figure 6-h Installing Alignment Deflector Shaft Retain the float cover to the main cover asssembly with two E-Rings (Item 15) pressed onto the inside grooves of the shaft. Hook the other end of the springs attached to the main cover onto the posts on the float cover. Slide another Alignment/Deflector Shaft (Item 28) trough the other plastic bearings in both sides of the float cover.
  • Page 66 ELI 100_____________________________________________________________________________ Figure 6-i Installing Floating Cover and Grounding Gaskets With the Floating Cover (Item 38) upside down, place the holes without the bearings over the ends of the shaft in the main cover assembly. The shaft may have to be moved from side to side to allow the float cover to go on. Position the Grounding Gaskets (Item 47) between the main cover and the floating cover flanges with their holes aligned with holes in the floating cover and the main cover.
  • Page 67 ____________________________________________________________________________Section 6 Figure 6-j Detail of Spring Set the torsion spring as shown in view above, making sure that the spring is against head of post in latch bar. 6-11...
  • Page 68 ELI 100_____________________________________________________________________________ Figure 6-k Installing Latch and Springs Place the Main Cover (Item 41) upside down on the bench with the pivot side near you. Attach two Extension Springs (Item 24) to main cover as shown. On the left side, insert a Mandrel Spacer Bearing (Item 22) with its flange to the outside, into the mating hole near the rear of the main cover.
  • Page 69 ____________________________________________________________________________Section 6 Figure 6-l Installing Slide Shaft, Bearing and Spring Insert another Mandrel Spacer Bearing (Item 22), with its flange to the outside, through the hole on the side opposite the other mandrel spacer bearing. Place the Torsion Spring (Item 25) inside of the main cover and over the mandrel spacer bearing with its ends oriented as shown.
  • Page 70 ELI 100_____________________________________________________________________________ Figure 6-m Lower Chassis Complete 6-14...
  • Page 71 ____________________________________________________________________________Section 6 Figure 6-n Completion of Lower Chassis Orient the Shelf (Item 35) with its flange toward the platen. Place the Brush (Item 32), with its bristles up, on the front of the shelf and fasten them together with a Flathead Screw (Item 4) inserted into the center hole in the brush. Then fasten both to the front of the chassis with two more Flathead Screws (Item 4).
  • Page 72 ELI 100_____________________________________________________________________________ Figure 6-o View of Bottom of Paper Trough Tape motor cable to the bottom of the paper trough with a piece of strapping tape approximately 2" long. 6-16...
  • Page 73 ____________________________________________________________________________Section 6 Figure 6-p Installation of 48 Tooth Gear Install the 46 Tooth Gear (Item 18) on the motor with the hub towards the motor. Gear teeth must be akigned with the large gear for maximum engagment. Secure in place using a Set Screw (Item 7). The set screw must engage the flat portion of the motor shaft.
  • Page 74 ELI 100_____________________________________________________________________________ Figure 6-q Installation of Platen and Gears Place the Platen (Item 29) in the chassis with the longest end of the shaft on the side with the motor. Next, place the flanged Bearing (Item 21) on the side of the platen away from the motor with the flange to outside of the chassis. Then install the following: •...
  • Page 75 ____________________________________________________________________________Section 6 ± Set Screws for the gear must be tightened with a torgue tool. Required torque is 4 1 pound- inches. The gear should be all the way down on the platen and the set screw should engage the flat portion of the platen. If needed, install extra spacers (Item 14) to tafe up any side to side movement of the platen.
  • Page 76 ELI 100_____________________________________________________________________________ 6-20...

  • Page 77: Printed Circuit Boards

    Printed Circuit Boards Introduction This section provides illustrations and the schematics for the ELI 100 Printed Circuit boards. The parts lists have not been provided, as the boards are to be ordered for replacement as a whole, not they're individual components Anti-Static equipment should always be worn when working with static sensitive devices and in a static sensitive area.

  • Page 78: Motherboard Ref: 26025-002-50

    ELI 100 _____________________________________________________________________________ Motherboard Ref: 26025-002-50 Figure 7-a Motherboard Current configuration revision letter of the printed circuit board will be permanently marked in this area. See assembly notes and details on the following pages.
  • Page 79 ____________________________________________________________________________Section 7 Figure 7-b Motherboard 'X'-'Y' Coordinates Dimensions are in mils, 1.e; 2750 = 2.750, these are to the center of each component or devices.
  • Page 80 ELI 100 _____________________________________________________________________________ Figure 7-c Installation Details for Motherboard Buckle of cable Tie in this area Figure 7-d Modification Detail for Motherboard See assembly notes on the following page.

  • Page 81: Motherboard Board Assembly Notes

    ____________________________________________________________________________Section 7 Motherboard Assembly Notes: • The following components are not installed: C18, C21, C48, C58, C84, R5, R21, R28, R102, D22, J3, SW1. • Cut leads shall not extend >.10 Maximum above surface of board. • After all components have been soldered to the board, remove protective tape on piezo (SP1). •...
  • Page 82 ELI 100 _____________________________________________________________________________ Figure 7-e Sheet 1 of Motherboard Schematics...
  • Page 83 ____________________________________________________________________________Section 7 Figure 7-f Sheet 2 of Motherboard Schematics...
  • Page 84 ELI 100 _____________________________________________________________________________ R5 should not be installed. Provisional component only Figure 7-g Sheet 3 of Motherboard Schematics...
  • Page 85 ____________________________________________________________________________Section 7 Figure 7-h Sheet 4 of Motherboard Schematics...
  • Page 86 ELI 100 _____________________________________________________________________________ Figure 7-i Sheet 5 of Motherboard Schematics 7-10...

  • Page 87: Processing Module (Mpm) Board Ref: 26025-005-50

    ____________________________________________________________________________Section 7 Mortara Processing Module (MPM) Board Ref: 26025-005-50 Anti-Static equipment should always be worn when working with static sensitive devices. Figure 7-j Processing Module (MPM) Printed Circuit Board 7-11...
  • Page 88 ELI 100 _____________________________________________________________________________ Processing Module Assembly Notes: Procedure for pressing the 96 Pin Din Connector into the printed circuit board: • Wearing static sensitive equipment and being in a static sensitive area is required while performing this task. • The Mortara Processing Module (MPM) Circuit Card (Ref 5525-004-01) must be fully assembled before the connector J2 is inserted.
  • Page 89 ____________________________________________________________________________Section 7 • Figure 7-k Processing Module Card (MPM) 'X' & 'Y' Coordinates Ref: 26025-005-50 and 26025-005-51 Dimensions are in mils, 1.e; 2950 = 2.950, these are to the center of each component or devices. 7-13...

  • Page 90: Processing Module (Mpm) Board Ref: 26025-005-51

    ELI 100 _____________________________________________________________________________ Mortara Processing Module (MPM) Board Ref: 26025-005-51 Anti-Static equipment should always be worn when working with static sensitive devices. Figure 7-l Processing Module (MPM) Printed Circuit Board 7-14...
  • Page 91 ____________________________________________________________________________Section 7 Processing Module Assembly Notes: Procedure for pressing the 96 Pin Din Connector into the printed circuit board: • Wearing static sensitive equipment and being in a static sensitive area is required while performing this task. • The Mortara Processing Module (MPM) Circuit Card (Ref 5525-004-01) must be fully assembled before the connector J2 is inserted.
  • Page 92 ELI 100 _____________________________________________________________________________ Figure 7-m Sheet 1 of 3 Schematics for Processing Module (MPM) Ref: 26025-005-50 and -51 7-16...
  • Page 93 ____________________________________________________________________________Section 7 Figure 7-n Sheet 2 of 3 Schematics for Processing Module (MPM) Ref: 26025-005-50 and -51 7-17...
  • Page 94 ELI 100 _____________________________________________________________________________ Figure 7-o Sheet 1 of 3 Schematics for Processing Module (MPM) Ref: 26025-005-50 and -51 7-18...

  • Page 95: Testing And Troubleshooting

    NOTE: An oscilloscope may be necessary to isolate between a faulty printhead or the circuit board. Introduction Since repair of the ELI 100 is limited to replacement of subassemblies, including the processor module, modem module, or the entire motherboard, the troubleshooting guide does not extend to the component level. However, a hardware description, schematic, and an assembly drawing are provided in other parts of this manual in case of on- site modifications or emergency repairs.

  • Page 96: Fault Isolation Table Continued

    ELI 100_____________________________________________________________________________ Fault Isolation Table continued: ECG test – Locks up or will not complete analysis (no Replace circuit board interpretation printout). Won’t save ECG. Is directory full? Replace circuit board Fails calibration pulse alignment. See 3.0, removal and replacement of printhead.

  • Page 97: Dc On - "Battery Low" Message Appears On Display

    ____________________________________________________________________________Section 8 Remove power from the unit. Connect the test LCD to J1, and turn on the AC power switch. If the ”CHARGING” or "AC POWER” message comes up, replace the unit’s LCD assembly. If not, replace the circuit board. With a multimeter set up for DC volts, measure between the anode of D15 (neg.

  • Page 98: Writer Test - Gaps In Printing, Missing Dots, Or No Printing At All

    ELI 100_____________________________________________________________________________ then “Stat”. Examine the calibration pulses printed in all 3 channels. The rising and falling edges as well as the top should be smooth lines with no fading or strings of individual dots. They should also not be extremely dark or thick (uneven thickness or scorch marks).

  • Page 99: Modem Test - No Dial-Tone Or Touch-Tone Audio

    If it is necessary to perform the transmit/receive tests, then another ELI 100 which is fully functional is required. For the direct transmit/receive tests, this unit must be available at the servicing site, along with the proper interconnect cable.

  • Page 100: Initial Set-Up

    ELI 100_____________________________________________________________________________ Connect the Shorting Plug to the Patient Input Port. Install the roll of ECG paper Initial Set-Up Note: Insure a beep is heard every time a key is pressed during the performance Test. Turn ON the unit's main power switch, located at the rear. The message "CHARGING" or "AC POWER" should appear on the LCD.

  • Page 101: Noise Test

    NEW DATE AND TIME: 12/31/88 17:55 Illustration 3 Check the date and time for the correct reading, and press ENTER again to start the clock. The LCD displays the main menu: ELI 100 Rate: ??? 25mm/s 10mm/mV 100Hz Illustration 4 Noise Test: Press the 'mm/mV' key to change the Gain to 20 mm/mV, and connect a shoring plug at the patient input connector.

  • Page 102: Ecg, Keyboard And Cable Test

    ELI 100_____________________________________________________________________________ Check Trace 1 for noise on all leads. Total peak and peak noise amplitude should not be more than 1.5 mm. Compare this to Sample Trace 1. Check for drift on the same noise trace, from the start of the trace to the end of the trace. The total drift from time zero to time 10 seconds shall not exceed 1 mm.

  • Page 103: Lead Fail Test

    Press the 'mm/mV' key and print 3 complexes at 20 mm/mV. Press STOP. Lead Fail Test: With the patient cable connected to the ELI 100, remove one lead at a time from the simulator and check Lead Fail messages on the Main Menu as follows: Lead Removed...

  • Page 104: Transmit/Receive Test

    ELI 100_____________________________________________________________________________ Transmit/Receive Test: Connect the unit under test to a fully functional ELI 100 via the serial ports using the direct Transmit/Receive cable, and set both units to the same baud rate. Power up the functional unit from the keyboard and press "SPF". The following screen appears:...

  • Page 105: Modem Transmission

    ____________________________________________________________________________Section 8 Modem Transmission: A fully functional unit must be available with a modem card either at the same location or at an outside location to do this test. Connect the unit under test to a phone line. Press "STOP", followed by "ALT" and "SPF" to access the "CONF/CLOCK" screen. Press "CONF" and "ENTER" until the BAUD RATE selection field appears.

  • Page 106: Writer Self Test

    This concludes the Performance Tests. power must be turned off, or the STOP key pressed. Description of Leakage Tests NOTE: Measures the Safety Ground at any exposed metal part of the ELI 100 except RS232 connector pins. Leakage Tests: Must be performed whenever the PCB assembly, Ac connector assembly, AC switch assembly, or the Writer are removed and replaced.
  • Page 107 ____________________________________________________________________________Section 8 Fig 8-a Measuring Device Form 8-13...

  • Page 108: Chassis Leakage Current Measurement

    ELI 100_____________________________________________________________________________ Chassis Leakage Current Measurement Same as Earth Leakage Current, but the leakage current to various points on the chassis, such as the Writer lid and the safety ground are measured instead. Fig 8-b Chassis Leakage 8-14...

  • Page 109: Patient Leakage Current Measurement

    ____________________________________________________________________________Section 8 Patient Leakage Current Measurement: This test measures the leakage current from the AC input circuitry to the isolated patient – connected circuitry. The normal condition with line polarity reversed should be tested. Worst case readings can not exceed 10μA. Fig 8-c Patient Sink Current 8-15...

  • Page 110: Line Voltage Applied To Patient Connection Leakage Current Measurement

    ELI 100_____________________________________________________________________________ Line Voltage Applied to Patient Connection Leakage Current Measurement: In this test, a potential at 10% over the line voltage is applied to the patient connection and the leakage current with respect to earth ground is measured. The normal condition with line polarity reversed should be tested. Worst case readings can not exceed 20μA.

  • Page 111: Traces

    __________________________________________________________________________________ Appendix A Appendix Sample Traces Fig A-a Trace 1 - Noise / Drift Test...
  • Page 112 ELI 100 _____________________________________________________________________________________ Fig A-b Trace 2 - 12-Lead Auto ECG...
  • Page 113 __________________________________________________________________________________ Appendix A Fig A-c Trace 3 - Rhythm Strips...
  • Page 114 ELI 100 _____________________________________________________________________________________ Fig A-d Trace 4 - Directory...
  • Page 115 __________________________________________________________________________________ Appendix A Fig A-e Trace 5 - Writer Self Test...
  • Page 116 ELI 100 _____________________________________________________________________________________...

  • Page 117: Appendix B Modem Module(S) (Mmm)

    Modem Module(s) (MMM) Introduction This section provides illustrations and the schematics for the ELI 100 printed circuit boards. The parts lists have not been provided, as the boards are to be ordered for replacement as a whole, not they're individual components Anti-Static equipment should always be worn when working with static sensitive devices and in a static sensitive area.

  • Page 118: Modem Module (Mmm) 2 Mram Pcb Ref: 26025-003-50

    ELI 100 _____________________________________________________________________________________ Modem Module (MMM) 2 MRAM PCB Ref: 26025-003-50 Fig B-a Modem Module (MMM) 2 MRAM Printed Circuit Board Assembly Ref: 26025-003-50...
  • Page 119 __________________________________________________________________________________Appendix B Fig B-b Views and Details for Mounting Crystal Assembly Notes: Speaker Attachment: Place support posts in holes ( See View A-A above). Place speaker with metallic leads closest to the transformer and with label facing printed circuit board on top of support posts.
  • Page 120 ELI 100 _____________________________________________________________________________________ Fig B-c Modem Module (MMM) 2 MRAM Board 'X' & 'Y' Coordinates Ref: 26025-003-50...
  • Page 121 __________________________________________________________________________________Appendix B Fig B-d Modem Module (MMM) 2 MRAM Schematic Ref: 26025-003-50...

  • Page 122: Modem Module (Mmm) 16 Mram Pcb Ref: 26025-003-51

    ELI 100 _____________________________________________________________________________________ Modem Module (MMM) 16 MRAM PCB Ref: 26025-003-51 Fig B-e Modem Module (MMM) 16 MRAM Printed Circuit Board Assembly Ref: 26025-003-51...
  • Page 123 __________________________________________________________________________________Appendix B Modification Notes: Remove C8, C16, C27, D3, F1, R8, SG1, and T1 from the assembled Modem Module Printed Circuit Board (MMM) Ref: 26025-003-50. Replace T1 with 1410-808 Transformer Modem 4000VAC. Solder C100 across primary leads 1 and 2 of T1 on bottom of board. See bottom view of board above. Mount R100 in footprint vacated by F1.
  • Page 124 ELI 100 _____________________________________________________________________________________ Solder R102 from top pad of R20 to top pad of C7. Fig B-h Installation of R102. Mount R101 as follows: Lay R101 on board surface with left pad butted and soldered to top pad of C27. Be careful not to short R101 to any other pad or trace.
  • Page 125 __________________________________________________________________________________Appendix B Add CR2 across right pads of L1 and L2. After CR2 has been soldered, bend part over onto the tops of L1 and L2. Fig B-j Installation of CR2.
  • Page 126 ELI 100 _____________________________________________________________________________________ Fig B-k Modem Module (MMM) 16 MRAM Schematic Ref: 26025-003-51 B-10...

  • Page 127: Appendix C Mortara Receiver Module(S) (Mrm)

    Mortara Receiver Module(s) (MRM) Introduction This section provides illustrations and the schematics for the ELI 100 Receiver Modules. The parts lists have not been provided, as the boards are to be ordered for replacement as a whole, not they're individual components Anti-Static equipment should always be worn when working with static sensitive devices and in a static sensitive area.
  • Page 128 ELI 100_____________________________________________________________________________________ Fig C-b Shield Can Installation Holes Fig C-c Installation of Shield Can Notes: From topside, insert shield can mounting tabs into corresponding holes and seat shield can against printed circuit board. Keeping all edges of shield can in contact with printed circuit board, solder shield can to printed circuit board, from the backside, at all seven (7) mounting tab / hole locations.
  • Page 129 __________________________________________________________________________________Appendix C Fig C-d Installation of Connectors Insert connectors, (Item 2) into printed circuit board holes and solder in place as shown.

  • Page 130: Mortara Receiver Module (Mrm-2500) Pcb Ref: 26125-002-50

    ELI 100_____________________________________________________________________________________ II. Mortara Receiver Module (MRM-2500) PCB Ref: 26125-002-50 Fig C-e Mortara Receiver Module (MRM-2500) Printed Circuit Board Assembly Complete Ref: 26125-002-50...
  • Page 131 __________________________________________________________________________________Appendix C Fig C-f Installation of Connectors Insert BNC Connectors (Item 1) as shown, connectors must be completely seated before soldering. Solder BNC pins to MRM II printed circuit board on opposite side of the board.
  • Page 132 ELI 100_____________________________________________________________________________________ Fig C-g Installation of MDC-2500 Assembled Printed Circuit Board Insert the pins of the MDC-2500 assembled printed circuit board (Item 2) (Ref: 26025-012-50) through the mounting holes on the MRM II assembled printed circuit board (Item 3) (Ref: 26025-013-50). MDC-2500 board must be completely seated before soldering.

  • Page 133: Index

    _______________________________________________________________________________Index Index 1.0 AC On - Blank LCD, No Pixels Illuminated 8-2 12V Programming Supply 3-6 2.0 AC On - Bar Across Top of LCD or Faint Illumination of Pixels 8-3 3.0 DC On - "Battery Low" Message Appears on Display 8-3 4.0 DC On - No Response When DC 'ON' Key is Pressed 8-3 5.0 Writer Test - Printing too Light or Too Dark or Uneven 8-3 5V Back-up Supply 3-6...
  • Page 134 ELI 100_____________________________________________________________________________ C-e (MRM-2500) PCB Assy Complete Ref: 26125-002-50 C-5 C-f Installation of Connectors C-6 C-g Installation of MDC-2500 Assembled PCB C-7 AC Input Power 3-5 Ground Integrity Test 8-16 AC Power Input 3-10 Initial Set-Up 8-6 Base Assembly Notes 5-3 Inspection of Writer Assembly Harness 2-3 Batteries Removal / Installation 2-7 Interconnection Diagram 3-9...
  • Page 135 _______________________________________________________________________________Index Modem Receive 8-11 Modem Transmission 8-11 Recommended Accessories 1-1 Motherboard Printed Circuit Board 7-1 Recommended Cleaning Supplies 2-1 Mount Product above Patient 1-1 Rhythm Test 8-8 MPM Board Ref: 26025-005-50 7-11 RS-232 Level Serial Port / High Speed Serial Port 3-2 MPM Board Ref: 26025-005-51 7-14 RS-232 / High-Speed Serial Data Port 3-10 MPM Board Slot 3-12...
  • Page 136 ELI 100_____________________________________________________________________________...

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