Philips Trim 1 Service Manual
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TroubleshootingPower On and Power Off Sequence PageWriter Trim Cardiograph Service Manual5-3 Figure 5-15 Trim II/III/Rx Power On Sequence
TroubleshootingPower On and Power Off Sequence 5-4PageWriter Trim Cardiograph Service Manual Figure 5-16 Trim I Power Off Sequence Figure 5-17 Trim II/III/Rx Power Off Sequence
TroubleshootingPower On and Power Off Sequence PageWriter Trim Cardiograph Service Manual5-5 Special Note About Software Version A.01.03 Please note that the power up sequence for software version A.01.03 may differ from the process described in Figure 5-14 and in Figure 5-15. There are circumstances where the power up sequence can be delayed by up to a maximum of 50 seconds. This can occur with installed software version A.01.03 when the PIM is not connected to the cardiograph (or a defective PIM is connected to the cardiograph) and AC power is applied to the cardiograph. NOTEAlways ensure that the Patient Interface Module (PIM) is connected to the cardiograph before pressing the On/Off button and returning the cardiograph to active use. PageWriter Trim I Power Sequence To return the cardiograph to active use if the PIM is not connected or a defective PIM is connected: 1 If the Patient Interface Module (PIM) is not connected to the cardiograph or a defective PIM is connected, press the On/Off button. 2Five squares ( ) will appear at the upper left corner of the display. 3The display will then go blank for approximately 50 seconds. 4The error code 0207 will appear on the display. 5Press any key other than the On/Off key to return the cardiograph to active ECG mode use. 6Connect the PIM or replace the defective PIM. 7The cardiograph will operate normally and requires no further intervention. PageWriter Trim II/III/Rx Power Sequence To return the cardiograph to active use if the PIM is not connected or a defective PIM is connected: 1 If the Patient Interface Module (PIM) is not connected to the cardiograph or a defective PIM is connected, press the On/Off button. The power up sequence can take up to 50 seconds to complete. 2The message PIM test results. Please check the patient interface module connection will appear. 3Turn the Trim Knob to highlight OK and then press the Trim Knob to select it. The cardiograph can be returned to active ECG mode use. 4Connect the PIM or replace the defective PIM. 5The cardiograph will operate normally and requires no further intervention.
TroubleshootingTroubleshooting Cardiograph Issues 5-6PageWriter Trim Cardiograph Service Manual Troubleshooting Cardiograph Issues The troubleshooting information in this section will help you to localize a fault and to correct it. The following charts list symptoms and the steps to follow to investigate and solve the problem. Several failure mode symptoms may actually be hardware induced or triggered, and may require board replacement or opening of the cardiograph for inspection, please contact the Philips Response Center for further assistance. See Contacting a Philips Response Center on page 1-32. Display Issues Table 5-1 Display Issues SymptomPossible Cause & Investigation StepConfirmation Solution Screen is dark and shows no imageCardiograph is in standby Action: Press the On/ Standby button on the front display.Confirm the cardiograph wakes up.User training on proper use of Standby. Contrast has been adjusted to the lowest degreeConfirm there is faint image in the LCD. Push Ctrl and down arrow key simultaneously to adjust contrast high enough. Screen is dark and shows no imagePower issue: AC cord Action: Inspect AC power connections.AC is applied but AC Power On indicator LED is dark.Ensure AC cord is not damaged and is plugged into appropriate live AC power socket. Power issue: Battery Action: Open battery compartment door and inspect battery condition.AC is not attached and the battery is inserted into the cardiograph. Push the On/ Standby button. The screen remains dark.Replace battery. Power issue: Supply AC is applied but AC Power On indicator light is not lit. AC cord and connection are verified and are good.Cardiograph must be serviced to replace power supply, contact Philips Medical Systems (see page 1-32). Power off mode failure With battery plugged in, the printer is making a clicking sound every 6 seconds. Press rear restart button to reset the cardiograph (see page 5-33).
TroubleshootingTroubleshooting Cardiograph Issues PageWriter Trim Cardiograph Service Manual5-7 Screen is dark and shows no imageLCD panel failure Replace with a new LCD panel to see if it functions normally. Replace with a new LCD panel. Contact Philips Medical Systems (see page 1-32). LCD backlight board failure. Replace with a new backlight board to see if the LCD functions normally.Replace the LCD backlight board. Contact Philips Medical Systems (see page 1-32). Main controller board failure With the battery plugged in, the printer is making a clicking sound every 6 seconds. Pressing the restart button (rear or cardiograph, page 5-33) does not reset the cardiograph.Cardiograph must be serviced to replace main controller board, contact Philips Medical Systems (see page 1-32). Screen shows CRC check failureApplication software is damagedCardiograph stops at the software identification/ copyright screen and a warning message appears that states CRC failed.Reinstall software application (see page A- 1) or (see page B-1). Confirm successful software installation (see page A-9) or (see page B-10). A dialog shows software version information with a black backgroundFile system is destroyed The cardiograph remains on the black screen. A dialog shows software version information, including the loader and kernel version and the PCMCIA storage card status.Wait 2 minutes and perform full software installation again (see page A-1) or (see page B-1). Confirm successful software installation (see page A-1) or (see page B-1). Table 5-1 Display Issues (continued) SymptomPossible Cause & Investigation StepConfirmation Solution
TroubleshootingTroubleshooting Cardiograph Issues 5-8PageWriter Trim Cardiograph Service Manual Keyboard/Trim Knob/Dedicated Key Issues Table 5-2 Keyboard/Trim Knob/Dedicated Key Issues SymptomPossible Cause & Investigation StepConfirmation Solution Keyboard is unresponsiveKeyboard controller subsystem has failed. Action: restart cardiograph using rear button (see page 5-33) and launch the Service Utility. Perform the Keyboard Test.Unable to enter Service mode after restart. Keyboard is still unresponsive. The cardiograph must be serviced to inspect and possibly replace the keyboard, cabling, or main controller board. Contact Philips Medical Systems for assistance (see page 1- 32). Keyboard is typing incorrect characters Keyboard controller subsystem has failed. Action: Restart cardiograph using rear button and launch Service Utility (see page 4-7). Run the Keyboard Test. Keyboard is now functional. Occasional recoverable keyboard failures have been observed. If failures persist, cardiograph must be serviced to inspect and possibly replace keyboard, cabling, or controller board. Contact Philips Medical Systems for assistance (see page 1- 32). Keyboard is typing incorrect characters Keyboard has Caps Lock enabled. Action: Inspect the incorrect typed characters on the display. If only the case of the characters is incorrect, press the Caps Lock key.Do the characters now appear correctly? User training on Caps Lock use.
TroubleshootingTroubleshooting Cardiograph Issues PageWriter Trim Cardiograph Service Manual5-9 Keyboard is typing incorrect characters Keyboard controller subsystem has failed. Action: restart cardiograph using rear button and launch Service Utility (see page 4-7). Run the Keyboard Test. Keyboard is now functional. Occasional recoverable keyboard failures have been observed. If failures persist, cardiograph must be serviced to inspect and possibly replace keyboard, cabling, or controller board. Contact Philips Medical Systems for assistance (see page 1- 32). During a software installation procedure, the user selects an incorrect localization option that causes the wrong keyboard version to be selected. Registry is lost.Try to upgrade the software kernel with the correct localization option. Try to upgrade the software application with the correct localization option. Reinstall the software kernel and application and ensure that the correct localization option is selected (see page B-8). Table 5-2 Keyboard/Trim Knob/Dedicated Key Issues (continued) SymptomPossible Cause & Investigation StepConfirmation Solution
TroubleshootingTroubleshooting Cardiograph Issues 5-10PageWriter Trim Cardiograph Service Manual Signal Acquisition Issues Before attempting to troubleshoot a signal acquisition error as a mechanical issue, ensure that the following patient preparation and basic troubleshooting techniques have first been followed. Always follow good skin and patient preparation techniques prior to taking an ECG. Proper skin preparation helps to ensure a good quality ECG. Skin is a poor conductor of electricity and frequently creates artifact that distorts the ECG signal. To prepare the patient for an ECG: 1 Shave hair from electrode sites if necessary (excessive hair prevents a good connection). 2Wash the skin thoroughly with soap and water. 3Dry the skin vigorously to increase capillary blood flow to the tissues and to remove the dead, dry skin cells and oil. NOTEDo not use alcohol to clean the skin because it dries the skin. If there is no time, rub the electrode sites with gauze to remove the dead, dry skin and to increase capillary flow. 4 Always use disposable electrodes, and ensure that the disposable electrodes have not expired. Place the electrodes on flat, fleshy parts of the arms and legs, and place all limb electrodes equal distance from the heart, at the same position on each limb. If a limb site is not available (amputation, injury) place the electrodes closer to the torso. 5For female patients, always place the electrodes on top of the breast (not underneath the breast tissue). 6Ensure that all electrodes are firmly attached, and that the lead wires are not pulling on the electrodes. If the electrodes can be moved easily, the electrode connection is too loose. 7Reassure the patient and make sure that the patient is comfortable. If the patient has tremors, attach the limb electrodes higher on the patient (closer to the torso), and assist with limiting patient moving while taking the ECG.
TroubleshootingTroubleshooting Cardiograph Issues PageWriter Trim Cardiograph Service Manual5-11 After ensuring that proper patient preparation techniques are being followed, and that fresh electrodes are being applied to the patient, review the following table for further assistance. Table 5-3 Signal Acquisition Issues SymptomPossible Cause & Investigation StepSolution All leads show leads off (red dashed line) continuouslyPIM communications have been lost due to USB patient data cable connection failure, or defective leads are connected to the PIM. 1Check that PIM patient data cable is firmly seated to the PIM connector ( ) on the rear of the cardiograph. 2If the PIM is firmly attached, perform the PIM test as described in “Maintenance Tests (Trim II/III/Rx only)” on page 4-1, or for the Trim I as described in “Trim I Diagnostic and Performance Verification Tests” on page 4-17. If the PIM Test fails, replace the patient data cable. If the PIM Test continues to fail with a new patient data cable attached, replace the entire PIM PCA Set. Contact Philips Medical Systems for further assistance (see page 1-32). 3If the PIM test passes, ensure that all lead wires are fully seated in the PIM lead connectors. 4Ensure that all lead wires are intact and that there are no cracks visible in any of the lead wires. 5Connect all of the lead wires to a metallic conductive surface or to a shortening bar. – Check the Leads off indicator on the Status Bar. Ensure that no leads are being reported as leads off. – If any of the precordial leads report as leads off, with all limb leads connected, replace the precordial lead(s). – If all leads report as leads off, replace the RL/ R lead with a lead that known to function normally. If the new lead connected to the RL/ R connector functions normally, replace the defective RL lead. Once the RL/R lead is operable, proceed to replace any other leads that display as leads off. – If the RL/R lead still displays leads off, the cardiograph will require internal repair, contact Philips Medical Systems for further assistance (see page 1-32).
TroubleshootingTroubleshooting Cardiograph Issues 5-12PageWriter Trim Cardiograph Service Manual One or more leads show leads off (red dashed line) periodicallyImproper or incomplete patient and skin preparation techniquesEnsure that good patient preparation and skin preparation techniques have been followed as described on page 5-10. Improperly attached electrodes or lead wires; expired disposable gel electrodesEnsure that the lead adapters are clean and have a tight fit. Ensure that the electrodes are within their shelf life and are firmly attached to the patient. Defib or high noise event Action: Observe frequency and recovery behavior. The PIM performs an automatic ranging action when input signals vary significantly. If this behavior persists in the absence of electrode movement or defib events, the cardiograph should be serviced to inspect and possibly replace the PIM or lead cables. Contact Philips Medical Systems for further assistance (see page 1-32). Table 5-3 Signal Acquisition Issues (continued) SymptomPossible Cause & Investigation StepSolution