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Innomed Medical

Heart Screen 112C-1

Service manual

1/47

D-7443-1-C

Service Manual

for

Heart Screen112C-1

Simultaneous 12-channel ECG devices with 112mm wide

3-channel built-in printer and

LCD display

Содержание Hear Screen 112C-1

Страница 1: ...Innomed Medical Heart Screen 112C 1 Service manual 1 47 D 7443 1 C Service Manual for Heart Screen112C 1 Simultaneous 12 channel ECG devices with 112mm wide 3 channel built in printer and LCD display...

Страница 2: ...TESTS ON THE INTERFACE BOARD 16 5 2 1 Checking voltages 16 6 DEVICE LEVEL MEASUREMENTS 17 6 1 HEARTSCREEN112C 1 BASIC FUNCTIONS 17 6 2 CHECKING TECHNICAL REQUIREMENTS 18 6 2 1 Leakage current measure...

Страница 3: ...cords need but a few button presses Even in its basic configuration the device can be connected to a computer On line display of the selected 12 channels and record storage is possible on the PC s lar...

Страница 4: ...e of totally dead accumulator max 2 hours Accumulator charger type protection Intelligent quick charger thermal protection at 54 C thermal fuse at 90 C Operating time from accumulator 60 minutes of EC...

Страница 5: ...channels Calibrating signal software generated 1 mV 300 ms Muscle filter digital 35 Hz 0 3 dB Line filter digital 50 60 Hz Line filter 20 dB point 50 Hz filter 48 5 51 5 Hz 60 Hz filter 59 61 Hz Base...

Страница 6: ...displayed curves 3 channels with rhythm lead group change 6 channels with rhythm lead group change 12 2 x 6 channels Communication parameters Communication USB Wifi optional Communication services op...

Страница 7: ...Innomed Medical Heart Screen 112C 1 Service manual 7 47 D 7443 1 C 4 Devices components and their operation 4 1Device block diagram of complete configuration...

Страница 8: ...Innomed Medical Heart Screen 112C 1 Service manual 8 47 D 7443 1 C 4 2 HeartScreen112C 1 Main board Master A D Slave A D Processor U6 Patient connector USB Charger Analog part Digital part...

Страница 9: ...cessor U24 RAM U201 D 0 7 A 00 18 PL1 J2 PC Connection to INTERFACE BOARD USB Insulation Interface Circuits ECG data OPTO isolator RTC U21 Mains Charger Accu Pack Charger Circuit U54 RTC RAM Power Sup...

Страница 10: ...rvice manual 10 47 D 7443 1 C 4 3HeartScreen112C 1 Main board Analog Part block diagram Processor U6 MASTER A D U17 limb leads ECG data opto isolator Patient P2 SLAVE A D U18 chest leads Isolated powe...

Страница 11: ...anual 11 47 D 7443 1 C 4 4HeartScreen112C 1 Interface block diagram Interface connector J1 Power connector J11 Display J2 J8 J24 Printer ON OFF button LED Display controller PIC24FJ256DA210 U7 Motor d...

Страница 12: ...ry pack heating during charging As a final check we have built in a thermal protection fuse that breaks at 90 C Take note of this fuse when servicing the device as it may break with too much heat for...

Страница 13: ...Innomed Medical Heart Screen 112C 1 Service manual 13 47 D 7443 1 C 4 6Device mechanical construction 4 6 1 Devices summarized exploded diagrams...

Страница 14: ...Innomed Medical Heart Screen 112C 1 Service manual 14 47 D 7443 1 C 4 6 2 Devices base exploded diagram...

Страница 15: ...Innomed Medical Heart Screen 112C 1 Service manual 15 47 D 7443 1 C 4 6 3 HeartScreen112C 1 top exploded diagram Display...

Страница 16: ...5V voltage at test point J3 7 5V 2 5 1 2 Checking voltages Analog part Check VCCAN buffer voltage at capacitor C109 6V 5 Check analogue power supply 3 3V at JP5 3 3V 5 Check Ref_Master voltage 1 8V a...

Страница 17: ...rveillance Check the outer isolation of the mains cable each time when the device is in the service station and or periodically If there is any demage change the cable Check the mains socket where the...

Страница 18: ...ng adapter connection and the patient connection 10 Between the charging adapter connection and the SIO connection 10 6 2 2 Sensitivity examination and DC tolerance checking Apply DC signal according...

Страница 19: ...rement enter the DC values into the table where the text appeared The comparison levels must be min 340 mV max 450mV P1 P2 Examined lead Positive DC mV Negative DC mV L all other I R all other II V1 a...

Страница 20: ...els one by one and measure the signal amplitude or during 50 mm sec 1 printing a In case of DC 320 mV The signal s amplitude on the examined lead must be min 1400 V P1 P2 Examined lead Measured amplit...

Страница 21: ...be less than 4 mm c Noise filter on Apply 4 mVpp 35Hz sine signal from the generator between the device s V2 and all other connected inputs The filter is acceptable if the dampening is greater than 20...

Страница 22: ...m the database and check the signal quality Check the R wave amplitudes on all leads on the display Print the signal from the PC on a laser printer through the serial line and check the ECG signal the...

Страница 23: ...ed Medical Heart Screen 112C 1 Service manual 23 47 D 7443 1 C 3 Remove the 6 screws indicated 4 Lift the device top part according the figure below 5 Disconnect the cables and remove the device top S...

Страница 24: ...l Heart Screen 112C 1 Service manual 24 47 D 7443 1 C 7 1 1 Disassembly of the bottom part Remove the battery connections After removing the appropriate screws the components in the bottom part can be...

Страница 25: ...update program package The reprogramming procedure 1 Extract the ZIP file to the C driver 2 After extracting you will find an IFU directory in which you should start the Factory exe program 3 Connect...

Страница 26: ...rned on It is possible in case of memory loss The battery has discharged The charging circuit is damaged Switch on again the device It will be in the factory setup state with empty memory Recharge the...

Страница 27: ...ttery If it cannot be fixed replace it The device does not turn on from Mains too The keyboard cable power switch is damaged or not connected Damaged Main board Check the cables and the connections Ch...

Страница 28: ...isy Some Lead s of the patient cable are broken or placed not well Replace the patient cable Several ECG channels are noisy Some Lead s of the patient cable are broken or placed not well The environme...

Страница 29: ...eplace the printer mechanism Although paper is loaded the printer does not print Incorrect paper position or the head lifting lever is in incorrect position Check that the head is not lifted off the p...

Страница 30: ...Innomed Medical Heart Screen 112C 1 Service manual 30 47 D 7443 1 C 9 Assembly drawings 9 1 HeartScreen112C 1 Main board TOP...

Страница 31: ...Innomed Medical Heart Screen 112C 1 Service manual 31 47 D 7443 1 C BOTTOM...

Страница 32: ...Innomed Medical Heart Screen 112C 1 Service manual 32 47 D 7443 1 C 9 2 HeartScreen112C 1 Interface Board TOP...

Страница 33: ...Innomed Medical Heart Screen 112C 1 Service manual 33 47 D 7443 1 C BOTTOM...

Страница 34: ...Innomed Medical Heart Screen 112C 1 Service manual 34 47 D 7443 1 C 10 Schematics 10 1 HeartScreen112C 1 Main Board...

Страница 35: ...Innomed Medical Heart Screen 112C 1 Service manual 35 47 D 7443 1 C...

Страница 36: ...Innomed Medical Heart Screen 112C 1 Service manual 36 47 D 7443 1 C...

Страница 37: ...Innomed Medical Heart Screen 112C 1 Service manual 37 47 D 7443 1 C...

Страница 38: ...Innomed Medical Heart Screen 112C 1 Service manual 38 47 D 7443 1 C...

Страница 39: ...Innomed Medical Heart Screen 112C 1 Service manual 39 47 D 7443 1 C...

Страница 40: ...Innomed Medical Heart Screen 112C 1 Service manual 40 47 D 7443 1 C...

Страница 41: ...Innomed Medical Heart Screen 112C 1 Service manual 41 47 D 7443 1 C...

Страница 42: ...Innomed Medical Heart Screen 112C 1 Service manual 42 47 D 7443 1 C...

Страница 43: ...Innomed Medical Heart Screen 112C 1 Service manual 43 47 D 7443 1 C...

Страница 44: ...Innomed Medical Heart Screen 112C 1 Service manual 44 47 D 7443 1 C 10 2 HeartScreen112C 1 Interface Board...

Страница 45: ...Innomed Medical Heart Screen 112C 1 Service manual 45 47 D 7443 1 C...

Страница 46: ...Innomed Medical Heart Screen 112C 1 Service manual 46 47 D 7443 1 C...

Страница 47: ...Innomed Medical Heart Screen 112C 1 Service manual 47 47 D 7443 1 C 10 3 HeartScreen112C 1 Battery package...

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