Innomed Medical Hear Screen 112C-1 Service Manual Download Page 9 | Manualshive

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Innomed Medical

Heart Screen 112C-1

Service manual

9/47

D-7443-1-C

HS112C-1 Main board Digital Part

Pro-

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

Supply

U42

+5V Power

Supply

U44

On/Off

Circuit

U51

Reset

Circuit

U5

J4

J14

Serial ECG
data

Test

Connector

J3

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Summary of Contents for Hear Screen 112C-1

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Page 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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