i-PAD NF1200 - Frank`s Hospital Workshop
Contents
1. Battery Pack lise LOWE ODD UE Syste i PAD NF1200 Functional Block Diagram 1 4 1 Operating Controls Indicators and Accessories 1 4 1 1 Device Parts Illustration i button State LED Power 4 ON OFF Cover Top View of the i PAD NF1200 with its cover closed Graphical Rescue Cover Guide AED Electrode Pads Connector Port Quick Reference Guide Shock Button Perspective view of the i PAD NF1200 with its cover open Power ON OFF Press this button to turn the 1 PAD ON or OFF Button i Button Press this button to e Get information regarding the i PAD s last usage usage time and number of shocks delivered Get information regarding errors that were detected during self tests Toggle between compression to breathing ratios during CPR 30 2 and 15 2 State LED Indicates the status of the i PAD blinking green the i PAD is in standby mode and ready for a rescue operation solid green the i PAD is in rescue mode blinking red the i PAD detected a system error or low battery level during a self test solid blue the i PAD is conducting a self test solid white the i PAD is in administration mode It announces last use information and it senses and waits for a possible data transfer to a personal computer An easy grip carrying handle for increased portability of the i PAD Covers the front panel of the 1 PAD and retains the defibrillator electrode2. Power supply subsystem is busted Replace if busted Do not use any fuse other than the one recommended by the manufacturer Power Switch failure Check the operation of the ON OFF switch SW2 on the main PCB board Check that the poles are shorted when the switch is pressed Replace the switch if there is a fault Power subsystem fault Change the main power board If the problem persists replace the original power board and contact the manufacturer 26 Failure Failure detected during Automatic or Manual Self Tests ERROR code given through voice prompt eT Table Self Test Error Codes Error Name Error Code Fault Remedial Action Replace the battery pack with a LOW BATTERY 0001 Low battery charge new one SYSTEM ERROR 0002 ROM chip 1 fault Replace the main PCB board SYSTEM ERROR 0004 ROM chip 2 fault Replace the main PCB board e Check the continuity of the flat cable connector between terminal J3 on the main PCB board and terminal J7 on the power board If there is a fault Error in communication between change the connector SYSTEM ERROR 0016 the main and HV micros e If the problem is not with the flat cable connector change the power board e If the problem is not with the cable connector and the power board change the main PCB board Replace the power board If the problem is not with SYSTEM ERROR 0032 Charging failure the power board replace the main PCB Replace the power
3. Voice prompts and their meanings continued Device usage time is 10 minutes Given during administration mode Indicates the duration in minutes that the 1 PAD NF1200 was ON In this case the 1 PAD 1200 was ON for 10 minutes during its previous usage Shock delivery is 4 times Given during administration mode Indicates the number of shocks that the 1 PAD NF1200 delivered In this case the i PAD NF1200 delivered four shocks during its previous usage 12 2 Routine Maintenance 2 1 Overview The i PAD NF1200 does not need any routine maintenance or calibration of its internal electronic subsystems Whenever service is necessary please contact CU Medical Systems Inc or any of its authorized representatives 2 2 Cleaning the i PAD NF1200 After each use clean the i PAD NF1200 using a soft damp cloth moistened with any of the following solvents Soap and water 70 solution isopropyl alcohol Chlorine bleach and water mixture 30 ml bleach liter of water Ammonia based cleaners Hydrogen peroxide Do not immerse any part of the i PAD NF1200 in fluids Do not let any fluid enter the case of the device Do not spill liquids on the case of the device Do not use strong acetone based cleaners in cleaning the device Do not use abrasive materials in cleaning the unit especially on the LCD display and the infrared filter on the IrDA port Do not sterilize the i PAD NF1200 13 2 3 Periodic Safety and Functional C
4. LED flashes in red When the i PAD NF1200 is turned ON while the State LED is flashing in red 1 The State LED turns solid blue then solid red The i Button flashes in red iii beeper emits a short beep and the 1 PAD NF1200 gives the voice prompt Press the flashing red i Button iv After the i Button is pressed the beeper emits a short beep and the i PAD NF1200 gives either of the following voice prompts Low battery level Replace the battery with a new one if the 1 PAD NF1200 detected a low battery level System failure Error code is 2 if the 1 PAD NF1200 detected a system failure The error code is a number from 2 to 128 v Thei PAD NF1200 turns off automatically vi The State LED flashes in red every 5 seconds and the beeper emits three successive beeps every minute to signify the occurrence of an error 3 4 2 Battery Insertion Test If no problem 15 detected the i PAD NF1200 activates the following indicators and voice prompts a b Beeper beeps for 1 second State LED turns ON in blue for the duration of the self test Shock button flashes in orange At the same time the 1 PAD NF1200 gives the voice prompt Press the flashing orange button now The voice prompt is looped until the shock button is pressed Beeper emits a short beep when the flashing shock button is pressed After the shock button is pressed the i Button backlight flashes in blue At the same time the 1 PAD NF1200
5. PAD lt detects decides gt NO Shockable E Pd v YES Voice prompt Y NO SHOCK ADVISED Voice prompt SHOCK ADVISED RSGEFlashes Step 2 Indicator Beeper Emits short beep Voice prompt STAND CLEAR Voice prompt RSGL Flashes Step 2 Indicator CHECK PULSE Beeper Emits long beep RSGIEFlashes Step Indicator Beeper Emits short beep Timer 10 second interval for checking pulse Voice prompt PRESS THE FLASHING ORANGE BUTTON NOW DELIVER SHOCK NOW RSGEFlashes Step 2 Indicator Beeper Emits continuous beep Shock button backlight Flashing orange Voice prompt 5 IF NO PULSE BEGIN CPR While the NF1200 i PAD is waiting for the SHOCK button to be pressed RSGI Flashes Step 3 Indicator Voice prompt played back in a loop PRESS THE FLASHING ORANGE BUTTON NOW DELIVER SHOCK NOW RSGL Flashes Step 2 Indicator Beeper Emits continuous beep Shock button backlight Flashing orange 1200 i PAD detects decides PRESSED lt Within 15 seconds NOT PRESSED HOCK button is oice prompt Voice prompt SHOCK DELIVERED d HE SHOCK BUTTON WAS NOT PRESSED Voice prompt BEGIN CPR NOW RSGEFlashes Step 3 Indicator Beeper Emits short beep Voice prompt First PUSH THE CHEST DOWN FAST TWO INCHES Speake
6. PAD should not be used adjacent to or stacked with other equipment If adjacent or stacked use is necessary the NF1200 should be observed to verify normal operation in the configuration in which it will be used 49 Guidance and manufacturer s declaration electromagnetic immunity The 1 PAD NF1200 is intended for use in the electromagnetic environment specified below The customer or the user of the 1 PAD NF1200 should assure that it is used in such an environment IEC 60601 1 test level Compliance level Electromagnetic environment guidance Electrostatic discharge ESD IEC 61000 4 2 Electrical fast transient burst IEC 61000 4 4 Surge IEC 61000 4 5 Voltage dips short interruptions and voltage variations on power supply input lines IEC 61000 4 11 Power frequency 50 60 Hz magnetic field IEC 61000 4 8 6 kV contact 8 kV air 2 kV for supply lines power kV for input output lines 1 kV differential mode 2 kV common mode 5 UT 295 dip in UT for 0 5 cycles 40 UT 60 dip in UT for 5 cycles 70 UT 30 dip in UT for 25 cycles 5 UT 295 dip in UT for 0 5 cycles 3 A m 6 kV contact 8 kV air Not Applicable Not Applicable Not Applicable 3 A m There are no special requirements with respect to electrostatic discharge Mains power quality should be that of a typical commercial or hospital environment Mains power quality should be that
7. WFi P IET 4020 BATTERY ELECTRODE PACH ELECTRODE areca arene mac ren 3 peream oes 1 Depecemenn EE Ds wemm vena aro nro EN 8 5 3 2 3 EHEEEEREERESEEDBEEREREH i5 ejs s s s e e sje n e g e ej e e e v 1 a seo CU MEDICAL SYSTEMS IVC 7800 H E 5 Assembly Diagram Larger version A3 size DESCRIPTION et Wi rmv zmn COVER COVER LOCK F COVER LOCE HANDLE LITER FLT HAXA TRE Hid HI 477 i n Rug 3m RUBBER HF 1 H CHHB 4090 ILLE khETB BII ME1 HAH 0 HARARE THHHHHE 8 Ir E meom 4 Fiia Fimea E Eu g a E E m peces 31 Hid Hi SIOE 12 COVER F TRE MAXL Hind HI 57030807 rr AXB Bnd TFT LED FILTER ma a 4 ED hF1 BAT D1 BATTERY BOARD ui 46 MFi R RUB PIBD HANDLE RUBBER pa
8. battery level is detected during battery insertion test Do not charge the battery pack Do not open the case of the battery pack Do not saw off or break apart the case of the battery pack Do not let the battery pack come into contact with open flames and other hot objects Do not dispose of in fire Do not short circuit the terminals of the battery pack Do not subject the battery pack to serious physical impact Do not hit it with a hammer In case of leakage or strange smell keep away from fire to prevent ignition of any leaked electrolyte Keep the battery pack out of children s reach If the battery pack leaks and the leaked liquid gets in the eyes wash them with clean water and consult a physician immediately Do not leave the battery pack in direct sunlight or in high temperature areas Do not have the battery pack in contact with water Keep the battery pack away from direct sunlight high temperature and humidity Follow local regulations when disposing of the battery pack Do not subject the battery pack to conditions beyond the safe environmental conditions for the i PAD NF1200 16 3 Performance Verification 3 1 Self Tests The i PAD NF1200 conducts automatic self tests and a battery insertion test to verify the functionality of its subsystems The automatic tests are conducted at Power On Run time and daily weekly and monthly It is important to have the battery connected to the i PAD NF1200 all the time s
9. from the oscilloscope display that a biphasic shock waveform 15 delivered 21 3 6 Data Transmission Test The i PAD NF1200 is capable of transmitting data that has been recorded during a rescue operation to a personal computer The transfer of data to a personal computer is necessary if it 1s desired to archive the data recorded during rescue operations The SmartMedia card or the internal memory flash is overwritten during a rescue operation The data in the data memory will no longer be accessible once it has been overwritten The data is transferred to a personal computer through the use of CU Expert a Windows based ECG Data Management Software that is designed to run in the personal computer Test Procedure Equipment needed Personal Computer running CU Expert IrDA Com Port Serial Adapter Defibrillator Analyzer 1 Connect the Defibrillator Analyzer to the 1 PAD NF1200 Set the defibrillator analyzer to output a 60 bpm normal sinus rhythm ECG waveform Let the setup run for at least 1 minute Turn the setup OFF Disconnect the defibrillator analyzer from the 1 PAD NF1200 Connect the i PAD NF1200 to the personal computer through any desired COM Port using the IrDA Com Port Serial Adapter SE 6 Set the options of CU Expert for a data reception in accordance with the instructions in its user s manual Do not begin data reception yet 7 Set the CU Expert to begin data reception 8 Go back to the i PAD N
10. pads package SHOCK button Press this button when the i PAD prompts you to Press the flashing orange button now Pressing this button delivers a defibrillation shock to the patient AED electrode Plug the connector of the AED electrode pads into this port pads connector port Graphical Rescue Guides you by indicating the current step in the rescue process Guide Quick Reference A printed card that summarizes the steps of a rescue process using the 1 PAD Guide Battery Pack Provides power to the 1 PAD Initiates a self test upon insertion IrDA Port for sending and receiving data to and from a personal computer Communication Port 1 4 1 2 Accessories Only parts and accessories approved by CU Medical Systems Inc must be used with the i PAD NF1200 Using parts and accessories that are not approved by CU Medical Systems Inc may degrade performance Using accessories and cables other than the ones specified in this manual may result in increased ELECTROMAGNETIC EMISSIONS or may decrease the ELECTROMAGNETIC IMMUNITY of the i PAD NF1200 Replacement accessories and consumables must be sourced only from CU Medical Systems Inc or its authorized representatives Standard Accessories Defibrillator Electrode Pads and Connector Assembly g AHG Disposable non rechargeable LiMnO2 battery pack Carrying Case Self adhesive pre gelled defibrillator electrode pads
11. solved contact the manufacturer Failure Beeper is not working Possible Causes Beeper failure Replace the Beeper Verify that the problem is solved by running the i PAD NF1200 with a Ventricular Fibrillation input from a defibrillator analyzer Verify that the beeper emits beeps after the charging of the capacitor and during the time when the SHOCK button has to be pressed Beeper controller failure Replace the main board Verify the solution by doing the verification step in possible cause no 1 If the problem is not solved contact the manufacturer 29 Failure No shock is delivered when the SHOCK button is pressed after the i PAD NF1200 issues the prompt to PRESS THE FLASHING ORANGE BUTTON NOW DELIVER SHOCK NOW Possible Causes SHOCK button failure Verify the operation of the SHOCK button by checking the continuity of the poles of SW4 when it is pressed 1 If the poles are not continuous when the SHOCK button is pressed SW4 replace SW4 with a new one Keypad controller failure Replace the main PCB with a new one Verify the solution by running the i PAD 1200 with a Ventricular Fibrillation input from a defibrillator analyzer Verify that a shock is delivered when the SHOCK button is pressed after the 1 PAD NF1200 issues the prompt to PRESS THE SHOCK BUTTON Failure of connector between the main Verify the continuity of the connector between the main 73 and the power board
12. used to acquire the ECG signal from the patient and to deliver the defibrillation shock to the patient Power source of the i PAD NF1200 This battery 1s inside the case of the device RETURN the i PAD NF1200 to an authorized service representative in case the battery pack needs to be replaced Used to store the i PAD NF1200 and the accessories needed for a rescue operation 10 1 4 2 Voice and Text Prompts Prompts The i PAD NF1200 guides you throughout a rescue operation using voice prompts and other audio visual indicators The following table lists the voice prompts of the 1 NF1200 Table Voice prompts and their meanings Meaning Definition Attach pads Indicates that you have to attach the defibrillator electrode pads to the bare chest of the patient and to the i PAD NF1200 Do not touch the patient e Indicates that you or any bystander must not touch the patient Analyzing heart rhythm Indicates that the i PAD NF1200 is analyzing the ECG of the patient Nobody must touch the patient Shock advised e Indicates that a shockable ECG rhythm has been detected and the i PAD NF1200 is preparing for a shock delivery Stand clear Emphasizes the need to stay clear of the patient Given just before the prompt to deliver shock is given Press the flashing orange button now Indicates that you have to press the shock button in order Deliver shock now for the shock to be delivered The shock will only be delivered if
13. 2001 Meets 60601 1 2 limits method EN 55011 1998 A1 1999 EMT Radiated A2 2002 Group 1 Class EMI Immunity Meets IEC 60601 1 2 limits method EN 61000 4 3 2001 Level 89 3 10V m 80MHz to 2500 2 43 Arrhythmia Detector Performance ECG Analysis System ECG Database Test ECG 90 One Minimum test Performance Shock No Shock Observed Sided Lower Rhythm Rhythms 22 sample size goal Decision Decision Performance Confidence Class Limit 0 Coarse gt 90 sensitivity sensitivity 81 02 0 Fast VT 2 111 137 sensitivity sensitivity Normal 100 100 Sinus minimum ao 100 100 Rhythm arbitrary P specificity AF SB S VT heart block 30 gt 95 idioven arbitrary specificity tricular PVC s 96219 0 Asystole 100 uo di 127 132 specificity aoe am Q 99 54 218 219 specificity NON SHOCKABLE 44 Defibrillator waveform e cube biphasic Truncated exponential type impedance compensated 200 Joules nominal into a 50Q load Charge Control By pulse width modulation PWM provided by HV micro HV micro is activated by arrhythmia detector Charge time from Shock Advised lt 10 seconds typical e Text prompt PRESS THE FLASHING ORANGE BUTTON NOW Charge complete indicator e flashing backlight of SHOCK button e from the beeper Once charged the i PAD disarms itself if Patient s hear
14. 77 board and the power board If a fault exists replace the connector with a new one Verify the solution by running the verification test in possible cause no 3 above High voltage subsystem failure Replace the power board with a new one Verify the solution by running verification in possible cause no 3 above If the problem persists put the original power board back Defibrillating capacitor failure Replace the defibrillating capacitor with a new one Verify the solution by running the verification step in possible cause no 3 above If the problem persists put the original defibrillating capacitor back and contact the manufacturer Failure Incorrect ECG Review The ECG displayed during ECG review is not the same as the ECG recorded Possible Causes ECG review only Internal flash Replace the main board with a new one Verify that the memory chip failure solution works by doing the following a Turn the i PAD NF1200 with a normal sinus rhythm input from a defibrillator analyzer Let the i PAD NF1200 run for at least 2 minutes Turn the i PAD NF1200 OFF Disconnect the defibrillator analyzer then turn the i PAD NF1200 ON Transfer data to a personal computer PC using CU Expert and verify that the data recorded is the same as the data displayed in the CU Expert 30 Failure Automatic periodic self tests are not running Possible Causes Battery pack is not inserted into the i Verify that th
15. 800 MHz 23 800 MHz to 2 5 GHz where P is the maximum output power rating of the transmitter in watts W according to the transmitter manufacturer and d is the recommended separation distance in metres m Field strengths from fixed RF transmitters as determined by an electromagnetic site survey should be less than the compliance level in each frequency range Interference may occur in the vicinity of equipment marked with the following symbol NOTE 1 At 80 MHz and 800 MHz higher frequency range applies NOTE 2 These guidelines may not apply in all situations Electromagnetic propagation is affected by absorption and reflection from structures objects and people The ISM industrial scientific and medical bands between 150 kHz and 80 MHz are 6 765 MHz to 6 795 MHz 13 553 MHz to 13 567 MHz 26 957 MHz to 27 283 MHz and 40 66 MHz to 40 70 MHz The compliance levels in the ISM frequency bands between 150 kHz and 80 MHz and in the frequency range 80 MHz to 2 5 GHz are intended to decrease the likelihood that mobile portable communications equipment could cause interference if it is inadvertently brought into patient areas For this reason an additional factor of 10 3 is used in calculating the recommended separation distance for transmitters in these frequency ranges Field strengths from fixed transmitters such as base stations for radio cellular cordless telephones and land mobile radios amateur radio A
16. D NF1200 Clean no signs of damage free of excessive wear Supplies Available 2 sets of defibrillator electrode pads undamaged sealed within expiration date supplementary supplies razor scissors gloves gauze Remarks Problems Corrective Actions Inspected by Signature of operator doing the inspection 2 4 Batteries The 1 PAD NF1200 is equipped with LiMnO2 battery cells These batteries are nonrechargeable The status of the battery charge is monitored by periodic tests daily weekly monthly power ON test run time test and battery insertion test The i PAD NF1200 indicates through the State LED and the i Button if the battery pack needs to be replaced If the voltage level of the internal Battery pack falls below the minimum tolerable level the i PAD NF1200 is going to be inoperative If this is detected during automatic self test the i PAD NF1200 a Flashes the State LED in red b Emits a burst of beeps every minute When the i PAD NF1200 is turned ON after a low battery condition is detected the i PAD NF 1200 Turns the State LED momentarily in blue Then turns the State LED in solid red Flashes the i Button in red Gives the prompt Press the flashing red i Button After the i Button 15 pressed the i PAD NF1200 gives the prompt Low battery Replace the battery with a new The sequence of indications from a to e above 15 also given when the low
17. F1200 While in standby mode press 1 Button 9 Thei PAD NF1200 announces Last Use Data 10 After Last Use Data announcement the i PAD NF1200 tries to sense for a connection with a personal computer 11 When a connection is sensed the 1 NF1200 proceeds with data transmission 12 Monitor the progress of the data transmission in the CU Expert 13 Disconnect the 1 PAD NF1200 from the personal computer when the data transmission is finished 14 Go to the personal computer and open the data file received from the 1 PAD NF1200 Verify that the 60 bpm normal sinus rhythm ECG waveform 15 correctly transmitted Verify that the QRS peaks are 1 second apart 22 3 7 Impedance Measurement Test The 1 PAD NF1200 is designed to work on patients with transthoracic impedances that fall within the range of 250 to 1750 Beyond this range the i PAD NF1200 does not proceed with ECG analysis Test Procedure Equipment needed Variable resistive impedance load 100 to 2000 with 5Q steps De oV Connect the i PAD NF1200 to the variable resistive impedance load Set the impedance of the variable resistive impedance load to 10Q Turn the i PAD NF1200 ON Verify that the 1 PAD NF1200 does not go beyond the prompt ATTACH PADS The 1 PAD NF1200 senses that the impedance is outside the acceptable limits and it interprets the situation as having the pads not attached to the patient Turn the i PAD NF1200 OFF Do steps 2 to 5 Var
18. I PAD NF1200 Service Manual p CU Medical Systems Medical Systems Inc i PAD NF1200 Quick Reference Card Rescue Steps 1 Connect the defibrillator pads to the i PAD and then place on patient 2 Stand clear and press the SHOCK button if instructed 3 Administer CPR Notice i PAD NF1200 Service Manual CU Medical Systems Inc reserves the right to make changes on the device specifications contained in this manual at any time without prior notice or obligation to customers Printed in the Republic of Korea Publication Date March 2007 Service Manual Part No O 2007 CU Medical Systems Inc No part of this manual may be reproduced without the permission of CU Medical Systems Inc Table of Contents Table OEC ONE ST eodd nue dotted de E tu tue dx 4 IBtFOQUC HOT Ded dota uicit En ed 5 DUI 5 1 2 Service Manual s odo S o bt 5 1 3 Warnings Cautions and ING CS edes dose Cox eile Dec tensa Cua 5 I 43 PAD INET200 Device Detalle mice a tcc lade inen ia dali 5 1 4 1 Operating Controls Indicators and Accessories 7 Device Parts TIhiSttatiOD so a eda Dc man otf uinea dee 7 ACCESS OMICS
19. M and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy To assess the electromagnetic environment due to fixed RF transmitters an electromagnetic site survey should be considered If the measured field strength in the location in which the i PAD NF1200 is used exceeds the applicable RF compliance level above the i PAD NF1200 should be observed to verify normal operation If abnormal performance is observed additional measures may be necessary such as reorienting or relocating the i PAD NF1200 d Over the frequency range 150 kHz to 80 MHz field strengths should be less than 3 V m 51 Recommended separation distances between portable and mobile RF communications equipment and the i PAD NF1200 The i PAD NF1200 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled The customer or the user of the i PAD NF1200 can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment transmitters and the i PAD NF1200 as recommended below according to the maximum output power of the communications equipment Separation distance according to frequency of transmitter Rated m maximum output power of transmitter 150 kHz to 80 MHz 150 kHz to 80 MHz in 80 MHz to 800 MHz 800 MHz to 2 5 GHz outside ISM bands ISM bands d 2146 P dedo 4 12 22 0 01 0 116 m 0 12 m 0 12 m 0 23 m For tra
20. PC try the baud rate setting options one by one No key file key file does not match the Ensure that the key file for the particular 1 PAD NF1200 i PAD NF1200 that you are using is in the key file folder of the CU 10 Expert The key files are device specific If you do not have the key file you should get it from CU Medical Systems Inc CU Expert is corrupted Uninstall then reinstall the CU Expert 32 5 Disassembly and Repair This section is a guide on how to disassemble and reassemble the i PAD NF1200 Do not attempt to disassemble the 1 PAD NF1200 if you have not received any training on servicing the device The energy stored in the defibrillating capacitor of the i PAD NF1200 is lethal The voltage across the capacitor reaches more than 1500V during operation The i PAD NF1200 is designed to dump the charge in the defibrillating capacitor if the SHOCK button is not pressed 15 seconds after a prompt to press the shock button is given It is also designed to dump the charge if it is turned OFF while the defibrillating capacitor contains a charge Thus under normal circumstances no charge will be stored in the defibrillating capacitor if it is turned OFF However in cases when the device malfunctions the internal dumping functionality of the device might be impaired When the device is opened for servicing be sure to discharge any charge that may still be in the defibrillating capacitor Discharge the defibrillatin
21. board If the problem is not with SYSTEM ERROR 0064 Discharging failure the power board replace the main PCB Replace the power board If the problem is not with SYSTEM ERROR 0128 Disarming failure the power board replace the main PCB 2 Failure The i PAD NF1200 does not go beyond the ATTACH PADS prompt even though it is connected to the patient Possible Causes Pads are not properly attached to the patient Pads are defective Failure of the connector between the ECG DEFIB port and the power board Impedance signal path failure in the power board Failure of the connector between the power board J5 and J6 connectors and the main PCB J4 and J5 connectors Failure of the impedance measuring subsystem Impedance signal path failure in the main board Attach the pads firmly Make sure that the skin surface is clean and dry Verify that there is no apparent damage to the pads Verify that the gel of the pads has not dried out Verify that the connector from the pads to the ECG DEFIB port is not damaged Verify the continuity of the connector between the ECG DEFIB port and the power board If there is a fault in the connection replace the ECG DEFIB port assembly Replace the power board with a new one Check the operation of the 1 PAD NF1200 by doing either of the following a Connect the i PAD NF1200 to an AED analyzer Set the analyzer to output a normal sinus rh
22. e battery pack is inserted into the i PAD PAD NF1200 during storage NF1200 during storage Turn the i PAD NF1200 and verify that it turns ON Insert the battery pack if it is not inserted Real time clock battery is dead The real time clock chip is powered by a separate 3V Toshiba Coin Battery CR1220 on the main PCB If the coin battery voltage falls below 2 5 V replace it with a new one Real time clock chip failure Replace the main board Verify the solution by making the i PAD NF1200 conduct automatic self tests If the problem persists put the original main board back and contact the manufacturer Failure The i PAD NF1200 keeps incorrect date and time Possible Causes Real time clock chip battery failure Replace the dedicated real time clock battery cell Verify the solution by doing the following 1 Synchronize the i PAD NF1200 with a clock using the CU Expert Turm the i PAD NF1200 OFF 3 After one hour determine the time setting of the i PAD NF1200 using the CU Expert Verify that the time indicated is synchronized with the clock used in step 1 Real time clock chip failure Replace the main PCB Verify the solution by doing the Microprocessor failure verification steps in possible cause 1 above 3l Failure No data transmitted when transferring data to a PC Possible Causes i PAD NF1200 side IrDA transceiver is out of range Verify that the IrDA transmitter is within range
23. eam CU Medical Systems Inc Medical Instrument Industry Park 1720 26 Taejang dong Wonju si Kangwon do Korea Tel 82 33 747 7690 Fax 82 33 747 7659 Homepage www cu911 com Sales inquiries sales cu911 com Technical inquiries techinfo cu911 com Service service cu911 com Medical Systems Inc 23
24. g capacitor by placing a 10 Watt 50 Ohm resistor across its terminals 33 5 1 Disassembly 1 Remove the battery pack from its receptacle 2 Remove the screws at the bottom of the chassis of the device These screws hold the top and bottom cases of the device together The locations of the screws are shown encircled in the figure below 34 3 Liftthe bottom cover After lifting the bottom cover you will see the following MI Discharge the defibrillating capacitor Disconnect the defibrillating capacitor connector shown encircled above The ENERGY stored in the DEFIBRILLATING CAPACITOR is LETHAL To prevent any chance of unintentional SHOCK the DEFIBRILLATING CAPACITOR MUST BE DISCHARGED before handling 35 4 Disconnect the flat printed cable connection between the power board and the main board Disconnect the connectors between the power board and the ECG Defib port and the ECG Hybrid circuit Remove the screws that hold down the power board These are encircled in the picture below i apu Feet Pamp pa 36 6 Lift the power board Remove the insulator between the power board and the main PCB board by removing the screws encircled in the picture below 37 d Remove the screw that holds the main PCB board to the 1 PAD NF1200 chassis This screw 1s shown encircle below Then lift the main PCB board off the cha
25. gives the voices prompt Press the flashing blue i Button The voice prompt is looped until the i Button is pressed Beeper emits a short beep when the flashing i Button is pressed After the i Button is pressed the State LED turns OFF then flashes in green three times to signify the end of the battery insertion test The State LED then flashes every 5 seconds to signify that it is in standby mode 18 If a problem is detected the i PAD NF1200 activates the following indicators and voice prompts a i Button turns ON in blue b Beeper emits bursts of three successive beeps Bursts are spaced one minute apart State LED flashes in red Flashes are spaced 5 seconds apart c When the power is turned ON the State LED turns solid blue then solid red The i Button flashes in red the beeper emits a short beep and the i PAD NF1200 gives the voice prompt Press the flashing red i Button d After you press the flashing red i Button the beeper emits a short beep and the 1 PAD NF1200 gives any of the following voice prompts Low battery level Replace the battery with a new one given if the cause of the error is low battery level System failure Error code is 2 given if the cause of the error is system error The error code is a number between 2 and 128 e Thei PAD NF1200 turns OFF automatically f The State LED flashes in red every 5 seconds and the beeper emits three successive beeps every minute to signify the occur
26. hecks It is recommended that the following periodic checks be performed to ensure that the device and its accessories are in good condition and ready for any emergency Frequency Monthly and after each use After each use Maintenance Activities Activity Check the i PAD NF1200 for any error messages that might have been generated during the Daily Periodic Self Test Check supplies accessories and spare parts for damage and expiration Initiate complete self test by doing a Manual Self Test Check the case of the i PAD NF1200 and the accessories for any sign of apparent damage Check for dirt contamination Ensure that the connector of the defibrillator pad assembly is disconnected from the ECG DEFIB port of the i PAD NF1200 Actions to be Taken If a message that the battery is low is displayed recharge the battery For any other error messages please call the manufacturer or its designated service center If any supplies have expired replace them immediately If the self test detects any problem see the chapter on Troubleshooting If there is any apparent damage to the case of the device consult the manufacturer If there 1s dirt contamination clean the case as suggested in the section on Cleaning Disconnect the pad assembly from the ECG DEFIB port 14 MAINTENANCE CHECKLIST i PAD NF1200 Serial Number Location Vehicle ID Scheduled Frequency i PA
27. i E Com E DE cds 10 LAD Voice and Te XEPEOUHDLU 56 11 ARONI DC 13 VOU 13 2 2 13 2 3 Periodic Safety and Functional Checks verse cusacecdsadesuencustecnnuas En eoe rbd air 14 2AB IIR UI NEN E M TE 16 17 3 17 2 Automate Se TESIS irna o 18 3 3 Battery Insertion een etel E de tain tank zn ener tio e bua tensa 18 S dell ee SUNN S tuu 18 334 1 Amtoratie Self Iesse eiie oet Es resi uid ben uaa 18 350 L2 Datery IHSerHono DOSE EE 18 3 5 Shock Waveform Neriicadonm est o aote o a re be actin Ne Mte 20 3 0 Data TEST si allis caussa
28. ing resistances X and Y For example if the defibrillator analyzer has 500 impedance to get a total impedance load of 250 short resistance X and set resistance Y to 500 Connect the defibrillator analyzer to the 1 PAD NF1200 DUT defibrillator under test using banana type connectors defibrillator side end defibrillator electrode pads connector analyzer side end banana type connector Adjust the values of resistances X and Y hereinafter to be referred as the load adjustment network to achieve the desired impedance load Hook the current probe to the connector between the DUT and the impedance load adjustment network Connect the high voltage probe to the connector as shown in the test setup above Set the output of the i PAD NF1200 Set the defibrillator analyzer to output a shockable rhythm Set the defibrillator analyzer to measure the energy of the DUT output Set the oscilloscope for a single sequence operation and set the trigger level accordingly Set the oscilloscope horizontal scale to 4 ms div Set the vertical scale so that the oscilloscope could accommodate at least 4000 V peak to peak Turn the setup ON Press the shock button when prompted in order to deliver the shock After the test there must be measurements for all the combinations in the following matrix 13 14 Output Energy in Joules Impedance Load Q Verify that the energy of the shock delivered is within 15 of 200 Joules Verify
29. nganese dioxide disposable long life primary cell Automatic Minimum 200 shocks or 10 hours of operating time Temperature Range 14 F to 140 F 20 C to 60 C 47 Defibrillator Pads CUA0512F self adhesive disposable non polarized defibrillation pads Adult Pads Defibrillation pads for patients 8 years of age and older or 55 lbs 25 kg and over Data Recording and Transmission First 40 minutes of ECG and the entire incident s events and analysis Data Stored decison 48 Electromagnetic Compatibility Guidance and manufacturer s declaration electromagnetic emissions The i PAD NF1200 is intended for use in the electromagnetic environment specified below The customer or the user of the 1 NF1200 should assure that it is used in such an environment Emissions Test Compliance Electromagnetic environment guidance RF Emissions The i PAD NF1200 uses RF energy only for its internal function CISPR 11 Therefore its RF emissions are very low and are not likely to cause any interference in nearby electronic equipment RF Emissions Class B CISPR 11 Harmonic Emissions Not Applicable The i PAD NF1200 is suitable for use in all establishments including domestic establishments and those directly connected to the public low voltage power supply network that supplies buildings used for domestic purposes IEC 61000 3 2 Voltage fluctuations Not Applicable flicker emissions IEC 61000 3 3 The i
30. ns service information and instructions intended for qualified service personnel who will repair and service the 1 PAD NF1200 1 3 Warnings Cautions and Notes WARNING used to denote conditions hazards or unsafe practices that can result in serious personal injury or death CAUTIONS used to denote conditions hazards or unsafe practices that can result in minor personal injury damage to the i PAD NF1200 or loss of data stored in it NOTES used to denote items that are important during installation operation or maintenance of the i PAD NF1200 1 4 i PAD NF1200 Device Details The following description and diagrams show the details of the i PAD NF1200 To External Device Data Storage and Backup Subsystem co Analog Front end Subsystem si 1 ECG and ECG and impedance impedance signals Analog to Digital data Analog Front end Microprocessor and Converter High Voltage Subsystem Defibrillation Control Signals Internal Disarm Resistor Defib Control Microprocessor and Memory Switches H Bridge Electrical energy Therapy Capacitor High Voltage Electrical energy High Voltage Power Supply High Voltage 12V Electrical energy S T EV E 11 General Power 15V 5V 3 3V 3 3V 1 8V Supply To various parts of the device
31. nsmitters rated at a maximum output power not listed above the recommended separation distance d in metres m can be determined using the equation applicable to the frequency of the transmitter where P is the maximum output power rating of the transmitter in watts W according to the transmitter manufacturer W NOTE 1 At 80 MHz and 800 MHz the separation distance for the higher frequency range applies NOTE 2 The ISM industrial scientific and medical bands between 150 kHz and 80 MHz are 6 765 MHz to 6 795 MHz 13 553 MHz to 13 567 MHz 26 957 MHz to 27 283 MHz and 40 66 MHz to 40 70 MHz NOTE 3 An additional factor of 10 3 is used in calculating the recommended separation distance for transmitters in the ISM frequency bands between 150 kHz and 80 MHz and in the frequency range 80 MHz to 2 5 GHz to decrease the likelihood that mobile portable communications equipment could cause interference if it is inadvertently brought into patient areas NOTE 4 These guidelines may not apply in all situations Electromagnetic propagation is affected by absorption and reflection from structures objects and people 92 CU Medical Systems Inc How to Contact Us Product and Order Inquiries International Marketing Team CU Medical Systems Inc 534 Dusan Venturedigm 126 1 Pyeongchon Dongan Anyang City Gyeonggi 431 070 Republic of Korea Tel 82 31 478 5725 Fax 82 31 478 5729 Service Request and Technical Support Customer Service T
32. o that it could conduct the automatic self tests The battery insertion test conducts all the tests done during automatic self tests You have to insert a functioning battery pack to initiate a battery insertion test Daily self tests as the name indicates are conducted daily A test counter is incremented whenever an automatic self test is conducted Reckoning of self test timing starts whenever a battery pack is inserted For example if the battery pack is inserted at 11 am on January 1 the next self test is at 11 am on January 2 Weekly self tests are conducted whenever the test counter is a multiple of 7 and not a multiple of 28 Monthly self tests are conducted whenever the test counter is a multiple of 28 17 3 2 Automatic Self Tests When the i PAD NF1200 conducts an automatic self test Daily Weekly Monthly it wakes up automatically and turns the State LED solid blue during the duration of the test It goes back to standby mode after the test 3 3 Battery Insertion Test Insert a functioning battery pack to initiate a battery insertion test 3 3 Self Test Results 3 4 1 Automatic Self Tests When no problem is detected during automatic self tests the i PAD NF1200 does nothing but increment the test counter On the other hand when a problem is detected the i PAD NF1200 does the following a Upon detecting the problem i Beeper emits bursts of three successive beeps Bursts are spaced one minute apart State
33. of a typical commercial or hospital environment Mains power quality should be that of a typical commercial or hospital environment If the user of the 1 PAD NF1200 requires continued operation during power mains interruptions it is recommended that the 1 PAD 1200 be powered from an uninterruptible power supply or a battery Power frequency magnetic fields should be at levels characteristic of a typical location in a typical commercial or hospital environment There are no special requirements for non commercial non hospital environments 50 Guidance and manufacturer s declaration electromagnetic immunity The i PAD NF1200 is intended for use in the electromagnetic environment specified below The customer or the user of the 1 PAD NF1200 should assure that it is used in such an environment Immunity IEC 60601 1 test Compliance Electromagnetic environment guidance Test level level Conducted RF IEC 61000 4 6 Radiated RF IEC 61000 4 3 3 Vrms 3 Vrms 150 kHz to 80 MHz outside ISM bands 10 Vrms 10 Vrms 150 kHz to 80 MHz in ISM bands 10 V m 10 V m 80 MHz to 2 5 GHz Portable and mobile RF communications equipment should be used no closer to any part of the i PAD NF1200 including cables than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter Recommended separation distance d 21464 P depop d 12JP 80 MHz to
34. of the IrDA port of the 1 PAD NF1200 The transmitter of the COM Port Serial Adapter should be within 5 to 30 cm away from the IrDA port of the i PAD NF1200 transmitter must also be within 15 of the horizontal plane passing through the IrDA port of the i PAD NF1200 Transmission done in the presence of Verify that data transmission is not done in the presence 2 intense ambient light of intense ambient light Intense ambient light will interfere with data transmission through the IrDA port Transmission done in the presence of Verify that data transmission is not done in the presence strong vibration of strong vibration Strong vibration will interfere with data transmission through the IrDA port Pathway between the IrDA port and the Verify that the pathway between the IrDA port of the i IrDA COM Port Serial Adapter is PAD NF1200 and the IrDA COM Port Serial Adapter is blocked not blocked 5 IrDA COM Port Serial Adapter failure Replace the COM Port Serial Adapter IrDA port controller failure Replace the main board PC side Incorrect COM Port setting Verify that the COM Port set on the Options dialog of the CU Expert matches the PC COM Port that is used to connect with the i PAD 1200 Incorrect baud rate setting Verify that the baud rate setting on the Options dialog of the CU Expert is compatible with the baud rate capabilities of the PC If you are not sure about the baud rate capabilities of the
35. r Beat Sound at 100 beats per minute Voice prompt GIVE TWO BREATHS BREATH BREATH RSGI Flashes Step 3 Indicator This CPR sequence is repeated for 5 cycles Cycle counter goes from first up to fifth i PAD NF1200 Rescue Protocol 4 TROUBLESHOOTING 4 1 How to Use This Section This section explains how to identify the causes of problems that may occur during the lifetime of the i PAD NF1200 Use this section in conjunction with the sections on Performance Verification and Disassembly Guide 4 2 Who Must Perform Repairs Only authorized personnel must service the device Unauthorized personnel must not open the case of the i PAD NF1200 or the cover of its battery compartment 4 3 Replacement Level Supported Due to the high density of surface mount components CU Medical Systems Inc recommends that all repairs shall be done on the printed circuit board PCB level It is not recommended to replace individual components on the PCBs with the exception of easy to replace items like fuses 4 4 Troubleshooting Guide Failure i PAD NF1200 does not turn ON Low Battery Charge Perform a battery insertion test using a new battery This condition is detectable by the self pack tests Discontinuity between the battery pack and Check the condition of the battery pack contact spring the power board J8 on the power board If damaged replace the spring The fuse between the battery pack and the Check fuse F1 or F2
36. rence of an error The list of ERRORS and the corresponding meanings are given in the following table Table Self Test Error Codes Error Name Error Code Remedial Action Replace the battery pack with a new LOW BATTERY 0001 Low battery charge SYSTEM ERROR 0002 ROM chip 1 fault See Troubleshooting in Chapter 4 SYSTEM ERROR 0004 ROM chip 2 fault See Troubleshooting in Chapter 4 Error in communication See Troubleshooting in Chapter 4 SYSTEM ERROR between the main and HV micros SYSTEM ERROR 0032 Charging failure See Troubleshooting in Chapter 4 SYSTEM ERROR 0064 Discharging failure See Troubleshooting in Chapter 4 SYSTEM ERROR 0128 Disarming failure See Troubleshooting in Chapter 4 19 3 5 Shock Waveform Verification Test Equipment needed Defibrillator Analyzer with energy measurement function Oscilloscope with high voltage probes up to 2500 V capacity and current probe up to 100 A capacity 250 1 100W Wire Wound 500 1 100W Wire Wound 100 2 1 100W Wire Wound 125Q 1 100W Wire Wound 150 2 1 100W Wire Wound 5092 1 100W Wire Wound Various 100 Watt resistances Test Setup resistance Defibrillator under test Defibrillator resistance Analyzer zl Current probe Oscilloscope 20 Test Procedure 1 Rm Sr dee ce am TI 12 Set the load impedance from 250 to 1750 As most defibrillator analyzers have only 50Q of load impedance achieve the other values by vary
37. s ie 50 ee 1 4 8 No 1 E E E m Ha m E E E 89 es 89 EI ala ii OPES 0 1 BB el Fa 4 T 3 3 on CAL Reeve mew mm UE CU MEDIAL SYSTEMS INC KP 1200 H F i 42 TECHNICAL SPECIFICATIONS Physical 2 75 in high X 8 66 in wide X 10 23 in deep 70 mm high X 220 mm wide X 260 mm deep Approximately 4 84 165 2 2 kg with battery pack installed Environmental Category Nominal Specifications Operating 32 F to 104 F 0 C to 40 C Conditions 5 to 95 non condensing Temperature 32 F to 109 F 0 C to 43 C Standby Conditions Ready for rescue stored together with AED Pads Humidity 5 to 95 non condensing device only no AED pads A 5 to 95 non condensing Operating 0 to 15 000 feet Withstands 1 2 meter drop to any edge corner or surface SB DID puse do rane MIL STD 810F Method 516 5 Procedure IV Meets MIL STD 810F Method 514 5 Road Transportation Vibration e Transportation e Road Operation e Helicopter Minimum Integrity Test 60529 43 Meets 61000 4 2
38. s eaaet n 22 3 1 Impedance Measurement dtd meer di ec lads Ao eee 23 5 5 Voice and Text Prompt Testing oou ocu ier ede err D Salad dal 24 AT COMO MOO MNO 26 4 1 Howto Use This 26 4 2 Who Must Perform Beats a euo ediderit edebat ds Dua 26 4 3 Replacement Level SHpBODed oii Go estilo o tee eis Pret 26 AA Ara BESO Obi o Guide us settee ton 26 and Repali essit vedette tts p 33 Se Disassembly Auten eee ouod beue doct 34 here cla DIS A RTE 40 OASSCmbly e RS 41 Technical on iier 43 t otto un ette 49 1 Introduction 1 1 The i PAD NF1200 The i PAD 15 a semi automated external defibrillator designed for minimally trained individuals It provides simple and direct voice prompts and indications for a straightforward rescue operation It is lightweight and battery powered for maximum portability 1 2 Service Manual Overview This Service Manual contai
39. ssis 38 8 You will see the top case after you lift up the main PCB board This is shown in the picture below 39 5 2 Reassembly 1 Reverse the disassembly process Place the boards and the screws and reconnect the connectors in reverse order of the disassembly process 40 6 Assembly Diagram s 41 No PART No DESCRIPTION CEI LFFER ES pem s wiwcnv ewp crew 1 Fa mnam enver er suse gam coven gt e sesurn Parey FLT 2 ET NENIUICI 1 10 mams Lk jt 400 pec am nep wi e mus m our 1 34 wnae ie no 1 rs ma Firaun sex 1 mre Suren naoa OC E is rive wen acer 23 susuav re maxa oma mt 22 sowa cover CC re vers a cera WF1 R RUB 408D SPEMER RUEER 1 P rR WFi F IAET 4D3D metn aa ji enean m ewm 2 WAXW Bind MI S703080 w and Mi Bind WFi FLT 4D09 merum WFi K LBL 304 CANCK OVERLAY eee
40. t rhythm changes to non shockable rhythm or The SHOCK button is not pressed within 15 seconds after the i PAD is armed or Disarm The ON OFF button is pressed to turn OFF 1 The defibrillator pads are removed from the patient or the pads connector is disconnected from the i PAD The battery pack is removed or is completely depleted Shock 15 delivered if the SHOCK button is pressed while the i PAD 15 Shock Delivery dE Shock Delivery Vector Via adult defibrillator pads in the anterior anterior Lead position 45 Tekstopp Ch1 Max 41 0 A 20 4 sili Ooms E Chr Y 2 40 21 Jan 2006 18 50 00 20 18 05 Waveform Specifications 200 Joules 46 ECG Acquisition Acquired ECG Lead Lead II Frequency Response Hz to 30 Hz ECG Analysis System to determine whether it is shockable or non shockable Non Shockable Rhythms ECG rhythms other than Ventricular Fibrillation or Fast Ventricular Tachycardia Controls Indicators and Prompts Automatic during daily weekly and monthly testing Power ON and runtime testing Low Battery Indicator State LED and Voice Prompt Voice prompts guide the user throughout a rescue operation Self Tests Low Battery Detection e Power On Self Test Run Time Self Test e Daily Weekly Monthly User Initiated Battery Insertion Test Battery Pack Battery Type 12 Volt DC 4 2 Ah lithium ma
41. y the setting in step 2 from 10Q to 200Q Verify that the i PAD NF1200 does not go past the prompt ATTACH PADS when the impedance load is beyond the range 25Q to 175Q Verify that the 1 PAD NF1200 goes through ECG analysis in when the impedance load is within the range of 25Q to 175Q 23 3 8 Voice and Text Prompt Testing The i PAD NF1200 is designed to guide the operator during rescue operations through voice prompts The voice and text prompts indicate the status of the rescue operation and the actions that the operator and bystanders must do during a rescue operation Test Procedure Equipment needed Defibrillating ECG Pads Assembly Defibrillator Analyzer 1 Set the defibrillator analyzer to output an 80 bpm 1 mV normal sinus rhythm ECG waveform Connect the 1 PAD NF1200 to the defibrillator analyzer 2 Verify that the i PAD NF1200 goes through the protocol shown in the figure in the next page 24 Start NC A You pressed the ON OFF button to turn ON the NF1200 PA SED HDD Voice prompt ATTACH PADS detecis decides 52 lt 2 NO RSGI Rescue Step Guide and Indicator pads Flashes Step 1 Indicator attached lt P Ss 7 Y YES p r Voice NOT TOUCH THE PATIENT RSGL Flashes Step 2 Indicator i Voice prompt ANALYZING HEART RHYTHM RSGI Flashes Step 2 Indicator zm SS NF1200 i
42. you press the shock button Shock delivered Indicates that a shock has been delivered to the patient e Begin CPR now e Indicates the start of CPR e You may touch the patient after this prompt is given Push the chest down fast two inches Indicates that you have to push the chest down for about two inches during CPR The chest has to be pushed down fast Give two breaths Breath breath Indicates that you have to give artificial breaths to the patient Time the breaths with the breathing guide The shock button was not pressed e Indicates that you did not press the shock button within 15 seconds when the i PAD NF1200 prompted you to do so No shock advised e Indicates that the i PAD NF1200 detected a nonshockable rhythm Check pulse e Indicates that you have to check the pulse of the patient If no pulse begin CPR e Indicates that if there is no pulse you have to begin CPR System shutting down e Indicates that the ON OFF button of the i PAD NF1200 has been pressed to turn it OFF Press the flashing orange button now Given during battery insertion test Indicates that you have to press the SHOCK button so that the i PAD NF1200 can test its functionality Press the flashing blue i Button Given during battery insertion test Indicates that you have to press the i Button button so that 1 PAD NF1200 can test its functionality Administration mode e Indicates that the 1 PAD NF1200 is in administration mode Table
43. ythm any rate between 40 and 150 bpm Verify that the i PAD NF1200 goes past the ATTACH PADS prompt Connect 500 resistor across ECG DEFIB port Verify that the 1 PAD NF1200 goes past the ATTACH PADS prompt If the problem persists after the replacement of the power board put the original power board back in place Verify the continuity of the connectors Replace the connector if there is a fault Replace the front end analog subsystem hybrid integrated circuit Verify the operation of the i PAD NF1200 by doing the verification steps in possible cause no 4 above Replace the main board with a new one Verify the operation of the i PAD NF1200 by doing the verification steps in possible cause no 4 above If the problem persists contact the manufacturer 28 Failure No voice prompt is heard when the i PAD NF1200 is used Possible Causes Speaker failure Replace the speaker Verify that the problem is solved by turning the i PAD NF1200 ON The voice prompt to ATTACH PADS should be heard header of the wire to board connector Check the connection of the J1 header Repair the solder on the main PCB is loose this is the connection if it is loose header that receives the wire coming from the speaker Audio circuit failure Microprocessor Change the main PCB Verify the solution by doing the audio codec interface failure verification step in possible cause no 1 If the problem is not
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