icare Tonometer TA01 and TA01i Service Manual Rev 6

Table of Contents ICARE TONOMETER TA01 AND TA01I ...1 SERVICE MANUAL: LEVEL I ...1 1. 2.

INTRODUCTION ... 3 SERVICE FLOWCHART ... 3 2.1. Service level I ... 3 2.2. Service level II and III ... 3 3. DOCUMENTATION ... 4 The following service activities are documented during the service: ... 4 3.1. Service requests from the customers ... 4 3.2. Service request form ... 4 3.3. Service report ... 4 3.4. Calibration report... 4 3.5. Waybill of the return shipment ... 4 Recommended additional documents ... 4 3.6. Confirmation of the service cost from the customer ... 4 4. TONOMETER PARTS... 5 5. QUICK INSPECTION GUIDE... 7 6. CHANGE THE BATTERIES ... 9 7. CHECK THE SOFTWARE VERSION ... 10 Checking the software version (if the device can be turned on) ... 10 8. REPLACE THE PROBE BASE... 10 9. OPEN THE TONOMETER... 10 9.1. Software version and tonometer type ... 13 10. REPLACE TONOMETER PARTS ... 14 10.1. Back panel ... 14 10.2. Side covers ... 15 10.3. Serial number label ... 16 10.4. Forehead support ... 17 10.5. Measuring coil ... 18 10.6. Mother board... 18 10.7. Battery connectors ... 20 10.8. Thread plate ... 20 11. CALIBRATION... 20 12. TROUBLESHOOTING ... 21

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1. Introduction This service manual includes service level 1 service operations for: Icare Tonometer TA01 Icare Tonometer TA01i

2. Service flowchart

END USER

service and support requests support, calibration and service (level I)

SERVICE PARTNER

service requests for level II and III support, training spare parts, service

ICARE FINLAND

2.1. Service level I The service level 1 includes the basic service procedures to replace tonometer parts and verify the functioning of the tonometer. The service containing specific diagnosis operations and special service tools are introduced in the service level II and III. The following service operations are excluded: -

Electric works including diagnosis and tests Service procedures related to tonometer mother board Soldering of SMD components Software including programming and software updates Device upgrades.

2.2. Service level II and III The level II and III services are provided only by the manufacturer.

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3. Documentation The service operations shall be documented in order to guarantee the traceability of the device. The service documents must contain serial number of the tonometer, date and a person identification. All service documents shall be stored in a safe place and they shall be available during audit by the company.

The following service activities are documented during the service: 3.1. Service requests from the customers A written record of the service request e.g. email, fax, record from phone call etc. 3.2. Service request form It is recommended to use the service request form (Appendix D) for service request. A customer may complete the form and send it to the service partner before service or send the completed form with the device. The copy of the completed form shall be delivered to the company if the returned device needs to be sent to manufacturer for repair. 3.3. Service report The service report (Appendix E) contains detailed information of the completed service. The copy of the report shall be delivered to the company within 2 weeks after completing the service operation. 3.4. Calibration report The calibration report (Appendix B) shows the accuracy and repeatability of the measuring results of the device. The copy of the calibration report shall be sent to the company within 2 weeks after completing the service operation. 3.5. Waybill of the return shipment The record from the return shipment. This record confirms the finished service operation. Recommended additional documents 3.6. Confirmation of the service cost from the customer The service estimation shall be provided to the customer if needed. A written record is recommended although the charge has been accepted by phone.

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4. Tonometer parts The main parts of the tonometer and the internal structure of the tonometer are shown in the following images.

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forehead support forehead support

buzzer

LCD-display display

main electronics board

probe coil system

microcontroller

buttons to operate the device

4×AA-batteries

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5. Quick inspection guide The returned device needs to be inspected in order to define the needed service program. The following steps are used to define the needed service.

1. Check the serial number of the device (inside battery compartment) First two digits indicate the manufacturing year and the next two digits week of the year. SN 0825XXXX(X) = made 2008, week 25. Warranty time expires after two and a half years after manufacture date.

2. Inspect casing Cracks, displaced or loosen covers. Broken cover parts inside the device can be detected by shaking the device carefully. Before shaking the device, remove the batteries, tighten the battery cover and adjust forehead support to the min or max position to eliminate clacking of forehead parts. Option 1: No evidence of damaged device. Option 2: Device has been dropped or casing is broken. Continue to Step 3.

Start service in accordance with chapter 9.

3. Turn the device on Insert four AA batteries (USE ONLY alkaline batteries) and close the battery compartment cover. Do the following operations if the device is dead: a) Change batteries b) Adjust battery connectors if the batteries are clacking inside the device (device may have been dropped). Option 1: Device works Option 2: Device is dead Continue to Step 4.

Contact manufacturer / send the device to manufacturer (no charges if warranty repair)

4. Check the software version (OPTIONAL) Turn the device on and press the selector button until End appears on the display. Press the right selector button and measurement button at the same time. The software version appears on the display. Model TA01 (SN 03……SN 0724XXXX) The latest software version is 1.40 Model TA01i (SN 07251001 ->) The latest software version is 1.10 The latest software version is recommended in order to achieve the best accuracy of the device. Ask customer’s approval for the software update charges ( ~150 eur excl. shippings) and schedule (~2 weeks). The software update can only be done by the manufacturer. If there is no need for software update the device is serviced normally. Option 1: No need for update Option 2: Need for update Continue to Step 5.

Send the device to manufacturer

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5. Final test of the device Load the probe and perform the calibration. During calibration check the following functions: a) Probe movement, no errors appear during testing (change probe base if error appears) b) Buzzer, peep can be heard during measurement c) Display, all the segments can be seen, fading of the segments cannot be detected d) Buttons, moves easily, device reacts every time when buttons are pressed. Option 1: Device tested Option 2: Fault detected and calibrated successfully Probe fault: Return device to customer Probe moves sluggishly even the probe base has been changed. Warranty device => send device to manufacturer No warranty => start repair in accordance with chapter 9

Buzzer fault: not functioning => send device to manufacturer (HW problem) Display fault: Warranty => send device to manufacturer (HW problem) No warranty => start repair in accordance with chapter 9. Button fault: Warranty => send device to manufacturer (HW problem) No warranty => start repair in accordance with chapter 9. Calibration fault: Warranty => send device to manufacturer No warranty => replace measuring coil. Send device to manufacturer if device fails the calibration with the new coil (HW problem).

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6. Change the batteries Batteries can be changed as shown in the photo sequence below. Unscrew the battery compartment locking screw with a screwdriver or a small coin. Remove the battery compartment cover. Remove the old batteries. Insert a new set of batteries (four AA batteries). Do not use rechargeable batteries, since they may not function properly (the internal resistance of some rechargeable batteries is too high). Insert the batteries in accordance with the diagrams inside the battery compartment, with the +terminals pointing downwards on the display side of the tonometer (the rear side), and the terminals pointing downwards on the measurement side (the front side). Replace the battery compartment cover and secure it by screwing it in lightly using the coin or screwdriver. Take care not to use excessive force when screwing the cover into place.

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7. Check the software version It is recommended to use the latest software version in order to achieve the accurate measurement results. The service level 1 does not include software update procedures. The software update is done by the manufacturer. The latest software versions are shown in the table below. Tonometer type Icare TA01 Icare TA01i

Old SW, update recommended 1.0 - 1.3 1.0 (update is highly recommended because of SW-bug)

The latest SW 1.4 1.1

The customer needs to be informed about the service charges and schedule if the software update is required. The software update is required especially if the customer is complaining about the unconsistent readings. The software update may correct accuracy problems of the readings appeared in some borderline cases, especially in high pressure range. Checking the software version (if the device can be turned on) 1. Turn the device ON 2. Press the left selector button until End appears on the display 3. Press the right selector button and the measurement button at the same time
The software version appears on the display X.XX

See chapter 9.1 if the device cannot be turned on.

8. Replace the probe base The probe base can be replaced by unscrewing the collar part and tilting the tonometer downward allowing the probe base to slide out. The probe base can also be changed by the end user.

9. Open the tonometer ATTENTION! Only authorized service partner is allowed to open the tonometer. Opening the tonometer by any other party will void the warranty of the device. To open the tonometer first remove the battery compartment cover as shown in section 6. Next open the two screws located in the battery compartment next to the wrist strap attachment. Now carefully remove the back panel starting from the bottom and moving to the top, see photo sequence on next page. Be careful not to break the snaps that keep the cover parts together. Use opening tool for 3rd generation covers, see section 10.

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Disconnect the cable from the display board. ATTENTION!!! The cable can be jammed between the SMD components of the motherboard. Therefore, be careful not to break the SMD components during disconnecting the back panel.

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Once the back panel has been removed, two screws are revealed below the central groove (see fig 7.8). Unscrew these screws (see figs 7.9 & 7.10) and also remove the collar part and probe base (see fig 7.11). Carefully remove the cover parts from each other (see figs 7.12 & 7.13). Again, be careful not to break the snaps, especially the snap close to the fore head support (see fig 7.14).

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7.9

7.10

7.11

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7.12

7.13

7.14

7.15

9.1. Software version and tonometer type The type of the tonometer and version of the software can be found from the label on the microcontroller, see the picture below.

The latest software version is recommended, see software update in chapter 7.

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10.

Replace tonometer parts

10.1. Back panel The whole back panel needs to be replaced in case of broken back panel, faulty display or faulty buttons. Three different cover versions have been used during manufacturing of Icare Tonometer since 2003. The two earlier cover versions are not available anymore and these cover parts are not compatible with the latest cover version. Therefore all the covers need to be replaced if older version casing part is replaced. Old version back panels, tonometers before SN 06XXXXXX do not have the wrist strap attachment, see the picture below.

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10.2. Side covers The latest (third) version covers were taken to production on April 2008. Icare devices starting from SN 08153001 -> have been produced with the latest cover version. The differences of the cover versions are shown in the photo sequence below.

1st version side cover A

1st version side cover B

2nd version side cover A

2nd version side cover B

3rd version side cover A

3rd version side cover B

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10.3. Serial number label A stand alone printer – barcode reader device is used to create the serial number label for serviced device. The system contains Zebra TLP 2844 printer, custom size labels and barcode reader. ATTENTION! The printer has been programmed and adjusted for the specified barcode reader and customized label type. Do not connect the printer to any computer or reprogram it because it may erase the printer memory and program. Please contact manufacturer in case of malfunction of printer. Creating the serial number label: 1. Prepare the printer a. Connect printer power cable b. Connect barcode reader power cable c. Connect barcode serial cable to printer, two adapters needed d. Check the position of the stickers that the tape roll moves easily e. Check the position of the color tape of the printer based on the instruction of the printer 2. Turn the printer ON 3. Read the barcode of the device to be serviced => printer makes three copies from the old serial number label. 4. Check that the new serial label has the same serial number as in the old label 5. Use one of these labels for the replace cover, one sticker to the copy of the service report that needs to be sent to Icare Finland and one sticker to the copy of the service report that shall be stored by the service partner.

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10.4. Forehead support Two different forehead versions have been used during manufacturing of Icare Tonometer since 2003. The earlier cover version is not available anymore. It is recommended to upgrade 1st version forehead support because the 2nd version forehead support allows larger adjustability of distance between the eye and the probe. The tonometer needs to be opened if forehead support is replaced. 2nd version forehead support can only be used with the cover versions 2nd and 3rd. The forehead guiding rail in the 1st cover version is too short and may cause faulty movement of the part. The difference between version 1 and version 2 forehead support is shown below.

Version 1 forehead support

Version 2 forehead support

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10.5. Measuring coil A faulty measuring coil may cause faulty calibration of tonometer. The tonometer needs to be opened if the measuring coil is replaced. Replacing the coil: 1. Keep the coil in place by pressing it carefully with finger while disconnecting the coil cable from the mother board. 2. Remove the coil and avoid particles to drift inside the coil tube during service procedure. 3. If the coil needs to be replaced, the lot number of the new coil is entered to the service report.

The coil slots on the side cover

The coil mounted on the side cover

10.6. Mother board Inspect the mother board for cracks and mechanical damages. Send the tonometer to manufacturer for repair if faults can be detected on the mother board. Service operations of the mother board are performed only by the manufacturer.

Replacing the mother board Replace the connection cable between the display and the mother board if needed. Avoid damaging the connect pins while operating with the display cable. The mother board has been mounted on the side cover B with two screws and plastic pin(s). The battery connectors are needed remove at the same time when the mother board is removed. Open the two screws on the mother board. Use a sharp tongs, cutting tongs or soldering iron to remove the plastic connector pin(s) in the middle of the mother board. Once the screws and pin(s) have been removed, the mother board can be removed at the same time with the battery connectors. Use a screw driver to dismount carefully both battery connectors. Be carefully with the connect wires between the battery connectors and the mother board.

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Mount the battery connectors carefully to the new side cover by pressing them carefully with fingers. Hold the mother board carefully by fingers while mounting the battery connectors. Avoid using excessive force during mounting the connectors. Mount the mother board to the new side cover and tighten the connection screws carefully. Do not solder the plastic connection pins in the middle of the mother board. Below is the picture of the mother board installed to the new side cover.

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10.7. Battery connectors The battery connectors of the mother board may be damaged if the device has been dropped. These connectors may also flatten due to mechanical shock. A clacking of batteries inside the tonometer is an indication of damaged or flattened battery contacts. The flattened connectors may cause poor contact with batteries. Adjust the connectors by pulling them out carefully to improve the contact problems with the batteries. Replace the both connectors even if only one connector is broken. Use tin-lead soldering process to replace the connectors. Replacing the connectors 1. 2. 3. 4.

Remove the mother board from the side cover in accordance with chapter 10.6 Remove the connectors with soldering iron Mount the new set of battery connectors to the side cover Mount the mother board to the side cover and adjust the wires of the battery connectors that they come through the pads of the motherboard 5. Solder the wires to the motherboard with tin-lead solder.

10.8. Thread plate Replace the thread plate of the battery compartment cover if the thread is worn. Also the screw of the battery compartment cover is recommended to replace if the thread plate is worn. The thread plate can be opened after opening the device.

11.

Calibration

Perform the calibration in accordance with the instructions in appendix B. The calibration needs to be done every time the tonometer has been opened. The calibrator TC03 is used to verify the measuring accuracy and functioning of the Icare tonometer.

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