Welch Allyn Z200+ v2 Service Manual
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Welch Allyn Z200+ v2 Service Manual

Welch Allyn Z200+ v2 Service Manual

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Welch Allyn
Z200+ v2
THERMAL WRITER
SERVICE MANUAL
Manufactured by Welch Allyn, Inc., Skaneateles Falls, NY U.S.A.
CAUTION: Federal law restricts this device to sale by or on the order of a physician.

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  • Page 1 ® Welch Allyn Z200+ v2 THERMAL WRITER SERVICE MANUAL Manufactured by Welch Allyn, Inc., Skaneateles Falls, NY U.S.A. CAUTION: Federal law restricts this device to sale by or on the order of a physician.
  • Page 2 © 2019 Welch Allyn This document contains confidential information that belongs to Welch Allyn, Inc. No part of this document may be transmitted, reproduced, used, or disclosed outside of the receiving organization without the express written consent of Welch Allyn, Inc. Welch Allyn is a registered trademark of Welch Allyn, Inc For patent information, please visit www.welchallyn.com/patents...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS GENERAL ..................................1 ............................... 1 ERVICE ANUAL URPOSE EU U ............................1 OTICE TO SERS AND ATIENTS ....................................1 ISPOSAL USER SAFETY INFORMATION ............................2 ............................2 ERIODIC AFETY NSPECTIONS ..............................2 SE THE ROPER OWER ..........................2 PERATE IN XPLOSIVE TMOSPHERES...
  • Page 4 ............................23 EYBOARD EMOVAL EPLACEMENT ..........................25 RITER SSEMBLY EMOVAL EPLACEMENT ......................... 27 RINT HEAD SSEMBLY EMOVAL EPLACEMENT & G ....................... 30 RITER OTOR EMOVAL EPLACEMENT ..........................33 IRCUIT OARD EMOVAL EPLACEMENT ........................34 OWER UPPLY OARD EMOVAL EPLACEMENT .......................... 38 IRCUIT OARD EMOVAL...

  • Page 5: General

    The Z200+ v2 device is identified by the USB Logo / Icon on the Upper Housing. If the USB logo / icon is not present on the Z200+ Upper Housing, refer to Z200+ Ver. 1 Service Manual DIR# 9516- 163-70-ENG.

  • Page 6: User Safety Information

    Consult the actual screen in the host language for specific wording. WARNING: Only qualified technicians authorized by Welch Allyn, Inc. should perform any adjustments, modifications or repairs CAUTION: The Printed Circuit Board contains static sensitive devices. Proper grounding is required when handling the Printed Circuit Board.

  • Page 7: Do Not Mount Product Above Patient

    Avoid Liquid Spills Do not set beverages or other liquids on or near the writer. Manufacturer's Responsibility Welch Allyn, Inc. is responsible for the effects on safety and product reliability and performance only under the following conditions: • Only qualified service technicians authorized by Welch Allyn, Inc. perform the required maintenance, assembly operations, adjustments, modifications, or repairs to the product.

  • Page 8: Equipment Symbols And Markings

    Consult directions for use (DFU) A copy of the DFU is available on this website. A printed copy of the DFU can be ordered from Welch Allyn for delivery within 7 calendar days. Reorder Number...

  • Page 9: Description

    DESCRIPTION Z200+ Overview The Welch Allyn Z200+ writer is a stand-alone, thermal paper printer that works in conjunction with Welch Allyn Stress Testing Systems, and a variety of OEM equipment. The computer-controlled Z200+ uses an eight-dot per millimeter print head to print out ECG tracings and report data.

  • Page 10: Outputs

    DESCRIPTION Outputs • Power on LED • Hard copy paper printout • Paper Out / Error LEDs • USB Type A Connection Input / Output Descriptions AC Power The Z200+ operates on 100/240 VAC at 50/60 Hz. When AC power is connected to the unit the Power LED will turn Power On LED This LED lights to signal when AC power is applied.

  • Page 11: Main Sections

    DESCRIPTION Main Sections The Z200+ consists of the five main sections listed below. Power Supply The Z200+ derives its power from the AC lines. The power supply of the Z200+ is rated for 100-240 VAC operation without the need for any modification to the unit. The Z200+ must be connected to the isolation transformer to ensure patient and operator isolation.

  • Page 12: Block Diagram Of The Z200+ Printer

    DESCRIPTION Block Diagram of the Z200+ Printer...

  • Page 13: Z200+ Specifications

    DESCRIPTION Z200+ Specifications Instrument Type: Thermal writer Paper Type: 8 ½ x 11 inch or A4, cued, perforated, z-fold with full grid Recording Technique: Computer controlled, thermal dot array, 8 dots/mm Writer Speeds: 5, 10, 25 or 50 mm/sec, computer-controlled External Ports and USB Interface to allow high speed data transfer for printing.

  • Page 14: Testing And Troubleshooting

    WARNING: Only qualified technicians authorized by Welch Allyn, Inc. should perform any adjustments, modifications or repairs. Caution: The Printed Circuit Board contains static sensitive devices. Proper...

  • Page 15: Uneven Printing

    TESTING AND TROUBLESHOOTING Uneven Printing Possible causes of uneven printing could be the print head itself, the platen, poor or damaged paper, or the mechanical alignment of the print head. 1. Check the platen for uneven wear. 2. Make sure that the writer door closes evenly across the print head. 3.

  • Page 16: Unit Will Not Process Print Request

    4. Calibrate the Cue Sensor and Print Test Page: A. Close the application that is using the Z200+ printer. B. From the Windows PC, run the “Z200+ V2 TEST SW TOOL” (DIR#: 11032-001-54): *Picture is for reference only. C. Place paper in the writer assembly tray and position it such that there is approximately 2-3 inches of paper...
  • Page 17 TESTING AND TROUBLESHOOTING D. Select the “Connect” Button to connect the application to the Z200+: Click “Calibrate Cue” button to Calibrate the Writer Assembly Cue Sensor: F. Click “Print Test Page” to print the test page. Repeat “Print Test Page” 3 times.
  • Page 18 TESTING AND TROUBLESHOOTING G. Examine the Test Page for overall print quality. Confirm Text is legible and print darkness is uniform across the page. Confirm a continuous slanted line across the printing page along with current date, time, and Z200+ software version number (See SAP DIR# 11028-00X-50 for latest software version) (The “00X”...

  • Page 19: Maintenance And Disassembly

    MAINTENANCE AND DISASSEMBLY Introduction This section contains information for preventative and corrective maintenance of the Z200+ Writer. Preventative maintenance includes inspection and cleaning techniques to ensure optimum equipment performance. Corrective maintenance includes removal and replacement procedures for equipment repairs. Recommended Cleaning Supplies •...

  • Page 20: Visual Inspection Techniques

    MAINTENANCE AND DISASSEMBLY WARNING: Disconnect the power cord and the USB cable before performing any maintenance procedures on this device. Visual Inspection Techniques WARNING: Disconnect the power cord and the USB cable before performing any maintenance procedures on this device. Although a simple visual inspection may seem trivial, equipment malfunctions are often caused by the obvious such as disconnected cables or loose components.

  • Page 21: Cleaning & Disinfecting Techniques

    MAINTENANCE AND DISASSEMBLY Cleaning & Disinfecting Techniques WARNING: Ventilate work area when using solvents. Observe manufacturers' warnings on solvent containers for personnel safety, emergency first aid, and fire hazards. Exterior Surfaces During Cleaning & Disinfecting: • Remove power from the Device by disconnecting the AC power cord. •...

  • Page 22: Printed Circuit Boards

    MAINTENANCE AND DISASSEMBLY Printed Circuit Boards CAUTION: The PCB contains static-sensitive devices. Proper grounding is required when handling the PC board. Clean assembled parts with a vacuum cleaner or low pressure, compressed air. Use care not to bend wires or component leads, which weakens them and may eventually cause them to break off.

  • Page 23: Assembly/Disassembly Instructions

    MAINTENANCE AND DISASSEMBLY Assembly/Disassembly Instructions WARNING: Disconnect the power cord and the network interface cable before performing any assembly or disassembly procedures on this device. Upper Housing Removal/Replacement The following procedure describes how to remove the cover from the Z200+ Writer. 2.
  • Page 24 MAINTENANCE AND DISASSEMBLY 4. Flip the unit over to its normal position. 5. Open the Writer Paper Drawer 3 to 4 inches.
  • Page 25 MAINTENANCE AND DISASSEMBLY 6. To remove the Upper Housing (Item# 15) rotate/tilt the cover around the open Writer door. The cover should slide off. Take care to not stretch/stress the Keyboard Ribbon Cable. 7. Open Upper Housing:...
  • Page 26 MAINTENANCE AND DISASSEMBLY Reassemble in reverse order, tightening the housing screws to 7.0 in-lbs. of torque (Replace Screw Fasteners as necessary). Configure the Keyboard Ribbon Harness as shown below, to insure that it does not interfere with the Platen Roller Gear when the device is fully assembled.

  • Page 27: Keyboard Removal/Replacement

    MAINTENANCE AND DISASSEMBLY Keyboard Removal/Replacement To remove the keyboard assembly from the unit, follow these steps. 1. Remove the cable (Item# 2) from the keyboard (Item# 5) by pulling it out of the connector. Note: Connector is Keyed … Improper assembly could damage the header / connector. 2.) Remove the 4 Screws (Item# 11) using a T10 Torx Screwdriver holding the keyboard to the cover.
  • Page 28 MAINTENANCE AND DISASSEMBLY 3.) Remove the Keyboard PCB (Item# 5) from the top cover. Reassemble in reverse order, tightening the Keyboard PCB screws to 7.0 in-lbs. of torque (Replace Screw Fasteners as necessary).

  • Page 29: Writer Assembly Removal/Replacement

    MAINTENANCE AND DISASSEMBLY Writer Assembly Removal/Replacement To remove the writer assembly from the unit, follow these steps. 1. Remove the Upper Housing of the unit (see Upper Housing Removal/Replacement) 2. Remove the indicated cables from the Main PCB Assembly (Item# 6). •...
  • Page 30 MAINTENANCE AND DISASSEMBLY 4. Lift the bottom of the unit straight up to separate the Writer Assembly (Item# 1) from the bottom chassis. Reassemble unit in reverse order, tightening the Writer Assembly screws to 7.0 in-lbs of torque (Replace Screw Fasteners as necessary). Upon reassembly, insure that the Writer Mounting Bosses are aligned / fully seated on the Lower Housing Bosses and that wires are not pinched.

  • Page 31: Print Head Assembly Removal/Replacement

    MAINTENANCE AND DISASSEMBLY Print head Assembly Removal/Replacement 1. With the writer door closed, flip the writer assembly over and locate the “O”-Ring, (Item# 33), that retains the print head to the writer assembly and remove it. 2. Turn the writer assembly over and open the writer door.
  • Page 32 MAINTENANCE AND DISASSEMBLY 3. Un-Clip the two Spring-Clip Fasteners (Item#35) that retain the Spring-Bar, then remove the Spring-Bar (Item# 34).
  • Page 33 MAINTENANCE AND DISASSEMBLY 4. With the writer door open, carefully lift the print head assembly up and out of the writer assembly. Reassemble unit in reverse order. For more information on “Print Head Assembly”, see ELI 280/380 WRITER ASSEMBLY PROCEDURE (DIR# MIS-04-181-01).

  • Page 34: Writer Motor & Gear Box Removal/Replacement

    MAINTENANCE AND DISASSEMBLY Writer Motor & Gear Box Removal/Replacement 1. With the Writer upside down, locate the 3 Screws (Item# 8) that secure the Gear-Box Assembly. Remove the Screws using a Torx T10 Screwdriver. Lift the Gear-Box and Motor Assembly off the Writer Assembly.
  • Page 35 MAINTENANCE AND DISASSEMBLY 3. To remove/replace the Writer Motor, remove the two mounting screws (Item# 36) that secure the Motor Assembly using a T10 Torx Screwdriver.
  • Page 36 MAINTENANCE AND DISASSEMBLY 4. If necessary, the Motor Gear can be removed with a 1.3mm Hex Key. Reassemble the unit in reverse order, tightening the Gear Box Mounting Screws, Motor Screws, and Gear Set-Screw to 3.5 in-lbs of torque. Insure that the Set-Screw Threads are coated with Vibra-Tite (Replace Screw Fasteners as necessary).

  • Page 37: Circuit Board Removal/Replacement

    MAINTENANCE AND DISASSEMBLY Circuit Board Removal/Replacement CAUTION: The PCB contains static-sensitive devices. Proper grounding is required when handling the PC board. Once the writer cover and the writer assembly have been removed the circuit boards can be accessed.

  • Page 38: Power Supply Board Removal/Replacement

    MAINTENANCE AND DISASSEMBLY Power Supply Board Removal/Replacement 1.) Remove Power Supply Output Wires … Red from V16 Tab Connector … Black from P3 Tab Connector.
  • Page 39 MAINTENANCE AND DISASSEMBLY 2.) Remove 3 Screws (Item# 11) from Power Supply PC Board (Item# 4) using T10 Torx Screwdriver … And 2 Screws (Item# 10) from Power Supply Power Entry Module using T10 Torx Screwdriver.
  • Page 40 MAINTENANCE AND DISASSEMBLY Remove 2 Flat-Head Screws (Item# 9) from Power Entry Module using Torx T8 Screwdriver. Remove AC Inlet Module Bracket (Item# 18).
  • Page 41 MAINTENANCE AND DISASSEMBLY Reassemble in reverse order, tightening screws to 7.0 in-lbs of torque (Replace Screw Fasteners as necessary).

  • Page 42: Main Circuit Board Removal/Replacement

    MAINTENANCE AND DISASSEMBLY Main Circuit Board Removal/Replacement 1. Disconnect the “Cable Assembly PicoFlex Ribbon” (Item# 2) from the Z200_ Main PCB Assembly (Item# 6): 2. Disconnect DC Power Cable from location P5 on Z200+ Main PCB Assembly...
  • Page 43 MAINTENANCE AND DISASSEMBLY 1. Remove 7 Screws (Item# 11) from Main Circuit Board using T10 Torx Screwdriver 2. The board can now be lifted out of the Lower Housing. Reassemble in reverse order tightening screws to 7.0 in-lbs of torque (Replace Screw Fasteners as necessary).

  • Page 44: Software Loading & Functional Test

    (The “00X” in the DIR# will numerically increment when the software version changes) ELI x50c, 280, 380 Software Programming TF0532-XX Cable and Board CABLE ASSY 9 POS CPU TO ELI 250 25000-027-61 Serial Download Cable) Z200+ V2 TEST SW TOOL 11032-001-54 Mini-Clip Jumper Wire Power Supply Cord...

  • Page 45: Process Steps

    MAINTENANCE AND DISASSEMBLY Process Steps Prepare Z200+ for Programming • Remove the Upper Housing of the unit (See Upper Housing Removal/Replacement Section) • Disconnect the Keyboard Ribbon Cable (See Keyboard Removal/Replacement Section) • Remove the Writer Assembly (See Writer Assembly Removal/Replacement Section) 1.) Remove power from the Z200+ by disconnecting the AC power cord from the unit.
  • Page 46 MAINTENANCE AND DISASSEMBLY 3.) Connect TF0532-XX to Location P3 on Z200+ Main PCB Assembly. 4.) Connect the Serial Download Cable between the PC serial port and the serial port on TF0532-XX. Note: USB to Serial adapter may be needed here. Connect the Power Supply Cord to the Z200+ Writer.
  • Page 47 MAINTENANCE AND DISASSEMBLY On the PC, Open the Software Loader “ELI x50c 280 380 Z200+ Software Loader” (11010-030- 03). Click on “Setup” button and ensure the File Name and Boot File Name are of the current version. File Name: Z280PlusV?_?_?_?.run (Latest release) Boot File Name: bootG45.mem Click OK.
  • Page 48 MAINTENANCE AND DISASSEMBLY Click “Program” button: 9.) The Status Bar will indicate Programming Progress.
  • Page 49 MAINTENANCE AND DISASSEMBLY The Program will indicate when the Download is Successfully Complete. 10.) Disconnect the Jumper Wire and the TF0532-XX from Z200+ Main PCB Assembly: 11.)
  • Page 50 MAINTENANCE AND DISASSEMBLY 12.) Remove power from the Z200+ by disconnecting the AC Power Cord from the unit. 13.) Reassemble the Writer Assembly onto the Z200+ Lower Housing (See Writer Assembly Removal/Replacement Section) 14.) Reapply power to the Z200+ Writer by Reconnecting the Power Cord. Cue Sensor Calibration 15.) Insert Paper in the Writer Assembly Tray and position it such that there is approximately 2-3 inches of paper between the roller and the perforations on the paper:...
  • Page 51 (Temporarily plug in the Cover connection … This is needed to test the unit) Note: Connector is Keyed … Improper assembly could damage the header / connector. 17.) From the PC, run the “Z200+ V2 Production SW Tool” (DIR# 11032-001-54): *Picture is for reference only.
  • Page 52 MAINTENANCE AND DISASSEMBLY 18.) Select the Connect button to connect the application to the Z200+. 19.) Click “Calibrate Cue” button to Calibrate the Writer Assembly Cue Sensor: 20.) Press the form feed button on Upper Housing and verify it feeds the paper. Confirm that the paper stops on the cue mark (The perforation on the paper should line up with the tear edge on the unit).
  • Page 53 MAINTENANCE AND DISASSEMBLY 22.) Examine the Test page for overall print quality. Confirm Text is legible and print darkness is uniform across the page. Confirm a continuous slanted line across the printing page along with current date, time, and Z200+ software version number (See SAP DIR# 11028-00X-50 for latest software version) (The “00X”...

  • Page 54: Ordering Parts And Parts List

    ORDERING PARTS AND PARTS LIST Ordering Information There are two types of items required for proper maintenance of the Z200+ printer: Service Parts and Supply Products. Service parts refer to items not expended during normal operation such as electronic components, software, hardware assemblies, and technical manuals.

  • Page 55: Parts Lists

    FOOT BLACK 0.64 OD X 0.125 ADHESIVE 6320-003 Z200+ LOWER HOUSING 8373-002-50 Z200+ UPPER HOUSING 8373-001-50 LABEL AC ON / PAPER OUT Z200+ V2 728753 SOFTWARE Z200+ V2.0.0 11028-00X-50 (The “00X” in the file/DIR number will numerically increment when the software version changes)
  • Page 56 ORDERING PARTS AND PARTS LIST Item Description Welch Allyn Part Number Number Z200+ A4 PAPER SPACER INSTALLING INSTR MIS-11-151-02 ASSY, UDI LABEL 412953 O-RING BUNA-N 1/2 OD X 5/16 ID 6141-003 (Print Head Retaining O-Ring) SPRING BAR 10.125 X .156 DIA...

  • Page 57: Conformance And Safety Testing

    Equipment and Tooling Required Equipment ID Description / Requirements Thermal Paper (Standard 9100-026-01 or A4 as appropriate) AC Line Cord PC (Personal Computer) with Z200+ V2 Test Software Tool (DIR# 11032-001-54) Leakage Current Test Equipment with 200cm Conductive Foil. Conformance Test Procedure Test Set Up 1.

  • Page 58: Testing Printer Operation/Quality

    CONFORMANCE AND SAFETY TESTING Testing Printer Operation/Quality With the Z200+ writer connected to a PC loaded with the “Z200+ V2 Test Software Tool” (DIR# 11032-001-54), click the “Connect” button. Then print a test page. A successfully printed test page has the following characteristics (refer to following image for example): The text is legible and print darkness is uniform across the page.

  • Page 59: Paper Advance Function

    CONFORMANCE AND SAFETY TESTING Paper Advance Function Once the “Test-Page” printing is completed, press the Z200+ interface button once to test the paper advance function. The paper should advance quickly to the next page perforation. Safety Testing If the cardiograph housing was opened for repair or inspection work, the following safety tests must be performed in accordance with the EN/IEC 60601-1 or EN/IEC 62353 methods and limits.

  • Page 60: Z200+ Test Data Record

    CONFORMANCE AND SAFETY TESTING Z200+ Test Data Record Unit Serial #: Printing Quality Print darkness PASS / FAIL (CIRCLE ONE) Printhead check (missing pixels) PASS / FAIL (CIRCLE ONE) Paper motion check PASS / FAIL (CIRCLE ONE) Software Version Check PASS / FAIL (CIRCLE ONE) Paper Advance Function PASS / FAIL (CIRCLE ONE)

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