cardiotouch3000 service manual · 2020. 4. 29. · service manual of cardio 2000 1-3. equipment...

EKG2000 SERVICE MANUAL

Version 1.0

www.ebionet.com

http://www.ebionet.com/

C7SM-1.01 2/70

Service Manual of Cardio 2000

Revision History

Edition Date Page Comment

Ver 1.0 2019-10-18 Initial Release

C7SM-1.01 3/70


- TABLE OF CONTENTS –

Section 1. General Information ............................................................................................... 5

1-1. Introduction ...................................................................................................................................................................... 5

1-2. Features of the Equipment ...................................................................................................................................... 5

1-3. Equipment Description .............................................................................................................................................. 6

1-4. System Installation .....................................................................................................................................................15

1-5. Terms of Warranty .......................................................................................................................................................16

1-6. Specification .................................................................................................................................................................16

Section 2. Troubleshooting .....................................................................................................18

2-1. Power .................................................................................................................................................................................18

2-2. Wave Printing ................................................................................................................................................................19

2-3. Diagnosis .........................................................................................................................................................................22

2-4. Filter ....................................................................................................................................................................................23

2-5. Trouble Shooting Guide ..........................................................................................................................................25

Section 3. Adjustment .............................................................................................................31

3-1. LCD Backlight................................................................................................................................................................31

3-2. Lead Fault ........................................................................................................................................................................32

3-3. Filter Setting ....................................................................................................................................................................33

Section 4. Block Diagram/Description ................................................................................34

4-1. Circuit Block Diagram ..............................................................................................................................................34

4-2. Equipment Overview ................................................................................................................................................35

4-3. Size and Weight ...........................................................................................................................................................38

Section 5. Disassembly and Assembly ................................................................................39

5-1. Module Description ...................................................................................................................................................39

5-2. Internal Block Diagram & Cable ........................................................................................................................46

5-3. Disassembly ...................................................................................................................................................................49

5-4. Assembly .........................................................................................................................................................................59

C7SM-1.01 4/70


Section 6. Replaceable Parts List and Accessory .............................................................60

6-1. Replaceable Part List ................................................................................................................................................60

Section 7. Connector Pin Assignment .................................................................................63

7-1. Patient Cable Port ......................................................................................................................................................63

Section 8. PCB Part Disposition ..............................................................................................64

8-1. Base (Power+Analog) Board ................................................................................................................................64

8-2. CDUI Board .....................................................................................................................................................................65

8-3. CPU Board .......................................................................................................................................................................66

Section 9. Software Upgrade .................................................................................................67

9-1. Requirement of Upgrading....................................................................................................................................67

9-2 Procedure of Upgrading (Cardio7 UI screen, upgrade method is same) .................................68

C7SM-1.01 5/70


Section 1. General Information

1-1. Introduction

CardioCare2000 is an electrocardiogram (ECG) device capable of measuring and recording 12

channels of cardiac signals of patients. The device enables operators to record cardiac signals,

review them using various viewing modes, and perform automatic detection of cardiac conditions.

In addition, the device allows operators to enter patient information for it to be printed alongside

cardiac signals, so that operators can sort and manage charts conveniently. It is also possible to

manage the digital files by transferring the stored data to a networked PC.

Furthermore, user convenience has been further enhanced by addition of a functionality that

can initiate ECG recording & saving, filter enhancing, parameter sorting and automatically

detecting cardiac signal all at once by pressing one key.

A battery (optional) can be added to the device so that the device can be operated

conveniently during bedside visits or emergency conditions.

1-2. Features of the Equipment

- Print 12-channel (ch) cardiac signals with reports in: 3ch+1 rhythm, 6ch+1 rhythm, and 12ch

rhythm patterns on A4 or Letter size printing paper.

- Record and print 12 channel rhythms continuously and simultaneously.

- Calculate heart rate, P-R-T axis and PR, QRS, QT and QTc widths from recorded signals

automatically and print them on a report for use in rhythm analysis.

- Get diagnostic reports using automatic detection functionality.

- Able to modify filter setting, signal sensitivity, printing speed, channel view settings and rhythm

settings, and print on previously recorded EKG signals to aid data analysis.

- Able to attach a battery so that the device can become portable.

- More than 200 patient‟s data can be saved and transferred to a PC through LAN.

- It offers various protocols to make it possible to link with hospitals‟ computing networks. Also File

Databases are strengthened.

C7SM-1.01 6/70


1-3. Equipment Description

The CardioCare2000 system consists of the items below. Unpack the package and check the

items below are included. Also, be sure to check for any damage to the body and accessories.

Basic Components and Accessories

① CardioCare2000 Body (1 EA) – Dimension: 290(W) 300(D) 97.5(H)mm

② Patient Cable (1 EA) – Length: 3,700mm (Max)

③ Limb Electrodes (1 SET)

④ Chest Electrodes (1 SET)

⑤ ECG Paper (1 EA)

⑥ Power Cable (1 EA) – Length: 3,000mm (Max)

C7SM-1.01 7/70


Optional Components

① Battery (1 EA) – Replaceable and Rechargeable, Lithium ion, 11.1V, 2600mA

② Hanger (1 EA)

③ Cart (1 EA)

CAUTIONS

You may have distortion or signal noise when you use nonstandard or other brand

accessories. We strongly recommend you use only the authorized accessories which we

supply.

WARNING

How to replace battery: Please make sure you use the right battery we show here.

Otherwise we are not liable for any damages and/or explosion/fire caused by using the

wrong battery.

①

②

③

C7SM-1.01 8/70


Body Configuration

▣ Top View

① Handle

② Printer Cover

③ Printer Cover Switch

④ LCD

⑤ Control Panel

①

② ③

④

⑤

③

C7SM-1.01 9/70


▣ Front View

① Printer Cover Switch

▣ Rear View

① ②

③

④ ⑤

① Protective Ground Terminal

② Power Switch

③ AC Power Connection Port ( Fuse : 250V , 5A ( High breaking type ))

④ USB Port(Use for equipment upgreades only)

⑤ RJ45 LAN Port

①

C7SM-1.01 10/70


▣ Left Side View

①

① Handle

▣ Right Side View

①

① Patient cable connection port

WARNING

There is a risk of electric shock if the Rest stand of the equipment is damaged or can

not be fixed to the product. Do not use the product and immediately ask the

manufacturer and the seller for repair

NOTE

To avoid an expected electric shock, do not open the equipment cover or

disassemble the equipment. Refer servicing to Bionet, Inc.

C7SM-1.01 11/70


LCD Panel

LCD panel displays system setting status after indicating the version of the system and

manufacturer name for 2 seconds when power is turned on.

Displayed items on the LCD are as follows.

① ② ③ ④

⑤ ⑥ ⑦

① Display ECG signal level out of 5, 10, 20, aut (Auto Gain)

② Display printing speed out of 12.5, 25, 50

③ Display base line filter setting on or off

④ Display EMG filter setting on or off

⑤ Display heart rate

⑥ Display channel form of the output report out of 3ch+1rhy, 6ch+1rhy, 12ch rhy, 60s 1rhy.

⑦ Display rhythm channel setting out of I, II, III, aVR, aVL, aVF, V1, V2, V3, V4, V5, V6..

1 0 1 2 . 5 O F F O F F

1 0 0 6 C H + 1 R H Y a V R

① ②

C7SM-1.01 12/70


Indicator Lamp

I Indicate the lead connection status.

If LED is illuminated green, connection status is good .

If LED is off, connection status is bad.

In this case, check off which one of lead connection is in lead-off status

through monitor mode output.

Caution: Start printing when LED is illuminated green.

Indicate the battery capacity status: Green and Red colors are used

to display 2 different statuses.

The battery indicator is red when the device is operational without having

an A/C power supply. When an A/C power is supplied, the battery

indicator will be either red or green depending on the charge level. No

color will be shown, if there is no battery installed in the device.

Indicate AC power is operated if LED is illuminated green and not in use if

LED is off.

Control panel

Select signal level(mm/mV) out of 5, 10, 20, aut

(I-aVF:10, V1-V6:5 )

Select printing speed(mm/sec) out of 12.5, 25, 50

Select on or off whether or not to activate the filter that eliminates base line

drift

Select on or off whether or not to activate the filter that eliminates EMG.

ECG signal can be distorted by applying this filter.

This key is excepted to use when network function is added ahead.

C7SM-1.01 13/70


Select channel form of the output report out of 3ch+1rhy, 6ch+1rhy, 12ch

rhy, 60s 1rhy

Select rhythm channel

Call up the menu to enter patient ID, name, age, sex, height, weight

Display real-time ECGs from the patient continuously or monitoring the

patient ECGs for long time,

Record ECGs for 10 seconds by pressing key and prints in A4 sized report

form after calculating the measurement parameter of the recorded ECGs

Print the same report as previously printed one in record mode or prints

after changing system setting such as filter, signal level, output speed,

channel form, rhythm cannel of previously recorded ECGs data in record

mode.

Exit during printing or recording of ECGs.

Except that, call up the menu or select menu.

Move the selected focus to the left in menu mode

Move the selected focus to the right in menu mode

C7SM-1.01 14/70


Power

When AC power is supplied to the equipment, AC power indicator lamp at the front side is

illuminated green and battery is being charged automatically.

If no battery is installed, battery indicator lamp will be off. Once a battery is plugged in and

the device is powered on, it will change its power mode to supply power to the battery. If the

device is running on the power from the battery, battery charge indicator lamp will light up

red color. If the battery is running low on power, three continuous buzzer alarms will sound. If

this occurs, turn off the device and connect the A/C power before turning the device back

on.

- Required time for charging : more than 4 hours

- Continuous battery operating time : 1 hour

Caution

For the protection of environment, do NOT throw wasted battery away. Please inquire

at the biomedical engineering lab of the hospital and dispose according to the

appropriate procedure to the authorized place(according to national regulations).

Battery Charge

Indicator Lamp

AC Power

Indicator Lamp

C7SM-1.01 15/70


1-4. System Installation

Precautions for Installation

While installing CardioCare2000, please pay attention to the following items:

- Use the equipment between the ambient temperature 5 to 40℃ and humidity 10 - 90％.

- Check the power cord is properly connected, and the probe carefully handled.

- Do not plug multiple cords in a power outlet.

- Install and operate unit on a flat surface.

- If you experience noise, ground the device.

- Do not use a power cord that may make a connection noise.

- Device settings will be recorded in the internal memory even when it is off.

- Prevent any shock or excessive force that may cause damage to the device.

- Place the device away from any dust or flammable materials.

Power Connection

The equipment needs electrical power to operate. Plug in one end of the power cable to wall

socket and the other to CardioCare2000.

Patient Cable Connection

- Connect the patient cable to the patient cable connection port on the right side of the body.

- Connect limb electrodes to RL (N), LL (F), RA(R), and LA (L) leads of the patient cable and chest

electrodes to V1 (C1), V2 (C2), V3 (C3), V4 (C4), V5 (C5), and V6 (C6), respectively.

Paper Installation

- Push the printer cover release switch to the right to open the printer door of the

CardioCare2000. Install EKG paper with the side to be recorded appearing on top.

Close the cover to finish the paper installation process.

WARNING

No modification of this equipment is allowed.

Do not modify this equipment without authorization of the manufacturer.

If this equipment is modified, appropriate inspection and testing must be conducted to

ensure continued safe use of equipment.

C7SM-1.01 16/70


1-5. Terms of Warranty

- This product was made through strict quality control and examination. The repair and

compensation standards follow the consumer damage compensation regulations of the Ministry of

Finance and Economy.

- The warranty for this product runs for 1 year. (2 years in EU) But the warranty for accessories runs for

6 months.

- This product is guaranteed against faulty workmanship for a period of 1 year. Under this warranty,

we undertake to repair free of charge at our service centers.

- When having troubles during this period, please provide us with the model name, serial number,

date of purchase and a description of the problem you are experiencing.

CAUTIONS

Federal law restricts this device to sale by or on the order of a physician

1-6. Specification

ECG Leads Simultaneous 12 Leads Resting ECG

Recording Channel 3CH+1RHY, 6CH+1RHY, 12CH,

1CH Long Time (1min)

Gain 5, 10, 20, Auto (I~aVF: 10, V1~V6: 5) mm/mV

Printing Speed 12.5, 25, 50 mm/sec

Sampling Rate Analysis Sampling Rate – 500sample/sec

Digital Sampling Rate - 8,000sample/sec

Filters AC (50/60Hz, -20dB or better),

Muscle (25~35Hz, -3dB or better),

Base Line Drift (off, 0.05, 0.1, 0.2Hz, -3dB or better),

Low Pass Filter(off, 40Hz, 100Hz, 150Hz)

C7SM-1.01 17/70


Display 2 x 16 Char LCD Display

Sensitivity, Speed, Filter Status, HR, Printing Form, Rhythm Lead

User Interface Short Key

Printer Resolution Thermal Print Head, Roll Paper

Report Paper

- Width: A4/Letter – 215mm (8.5”)

- Length: A4 – 297mm (11.7”)

Letter – 279mm (11”)

Resolution: 8dot/mm (0.125mm pitch)

Patient data ID, Name, Age, Gender, Height, Weight

Basic Measurement Heart Rate: 30~300bpm (±3bpm)

PR, QRS, QT/QTc, P-R-T axis

Electrical Internal Noise: 20uV(p-p)max

Input Impedance: More than 50MΩ

Input Voltage range: ±5mV

CMRR: Greater than 105dB

DC offset Voltage: ≥ ±400mV

Patient Leakage Current: < 10uA

Frequency Response: 0.05~150 with in –3dB

Isolated, Defibrillation and ESU Protected

Line Power Input: 100- 240Vac, 1.5-0.75A, 50-60Hz, Output: 15Vdc, 4.2A

Battery type Replaceable and Rechargeable, Lithium ion, 10.8V, 3350mA

Battery Capacity 360 minutes of continuous operation without recording or

200 ECGs in 12 channel format at 25mm/s and 10mm/mV

with a battery charged during approximately 3 hours from total

discharge (with display off)

Communication LAN

Safety Conformity Class I, Type CF Defibrillation-proof applied Part.

Environmental Operating Temperature: 5~40℃

Operating Humidity: 10~90%RH

Atmospheric Pressure: 70~106KPa

Dimensions 290(W) 300(D) 97.5(H)mm, Approx 3.0kg (Main Body)

Standard Accessory Patient Cable (1 EA), Limbs Electrodes (1 SET),

Chest Electrodes (1 SET), ECG Paper (1 EA),

Power Cord (1 EA)

Options Rechargeable Battery (1 EA),

Cart(1 EA), Hanger (1 EA)

C7SM-1.01 18/70


Section 2. Troubleshooting

2-1. Power

Problem Solution

Case1.

The EKG2000

open will turn on

and off

frequently.

Case2.

Power will not

turn on.

< General Checking >

1. Check the power cable is connected with AC Power connection at the

back of the system.

2. Check the power source of the multi-tab with connection to the power

cable. (If power is connected, AC power indicator is lighted.)

3. Check the power switch.

4. Check any of two fuses on the Power Module (SMPS) and on fuse on the

Base board is cut.

If it is, replace Power board.

Case1:

Check if the soldering of J1 on the Base board (SMPS + Base board

Connector) is poor. Re-solder the cable.

● When the EKG2000 is turned on, the pin no. 8‟s voltage has to be always

14.6V.

1) Is the pin no. 1/2‟s voltage is 14.6 Yes replace the main board.

2) Is the pin no 1/2‟s voltage is 14.6 No replace the power board.

● When the REC key is pressed,(during printer is working)

1) Pin no. 12‟s voltage has to be changed from 0V to 24V

If not, faulty power board, replace the power board.

2) Pin no. 15‟s voltage has to be changed from 3V to 0V.

If not, faulty CPU, replace the main board.

C7SM-1.01 19/70


2-2. Wave Printing

Problem Solution

1-1. The wave pattern changes from the flat line

on the left to the wave forms on the right.

1. If the normal wave patterns show up to the

right of chart as shown in problem1, 2,

diagnosis output print too early.

2. It takes some time to show the normal wave

patterns.

3. The normal wave patterns will show if output

is requested after the system is stabilized

by showing the HR variance of ±5 on the LCD

display.

4. Check connection of the limbs electrode

and the chest electrode to the body parts.

5. If used on the dry skin or in the winter

season, connectivity may be degraded. In

that case, used water or ECG gel. The

electrode must be washed after using ECG

gel. Otherwise, the electrode will be rusted

and corroded.

1-2. Some wave patterns are not shown in V1~6.

* Connection location of the limbs electrode

and the chest electrode

2. The diagnosis is not shown in print.

1. Press the menu key, showing the overlapped

circle and triangle, at the bottom of the

Keypad.

2. Press the right arrow button twice to select

PRN and then press the menu key.

3. Press the left arrow button once to select

DIAG and then press the menu key.

4. Press ESC key from the menu to enter the

basic display and then press '0' to printout.

C7SM-1.01 20/70


3-1. There are too many noises in the wave

pattern.

3-2. The noises periodically occur throughout

the wave patterns.

3-3. The thick noise is made on the wave

patterns.

3-4. The wave output looks like the noise and

are not properly shaped.

1. This problem occurs when the filter value is

not corrected.

2. Press the menu key, showing the overlapped

circle and triangle, at the bottom of the

Keypad.

3. Press the right arrow key once to select FLT

and then press the menu key.

4. Check if the filter value shows BASE: ON,

MUSC: OFF, AC: 60 Hz, LDF: 150Hz and, if not,

correct it.

5. Since the noise occurs as in problems 2 and

3 if the AC filter is turned off or set at

different frequency from the power source,

the system must be set at 50Hz or 60Hz to

correspond to the input power. (It is different

each country) The AC filter status is shown at

the left bottom of the printout as

'CUT OFF (ON) AC'.

6. Problems 3.4 occurs when the BASE is set at

OFF. Change it to ON.

C7SM-1.01 21/70


4. The wave output looks like the noise and are

not properly shaped.

1. This problem occurs when the chest

electrode is not properly in contact with the

body.

2. Check with simulator there is any cut on the

patient cable.

3. Check there is any damage to the chest

electrode.

4. Test it again after applying alcohol, water or

ECG gel to the electrode.

* If the problem can not be solved by the

above procedures, please contact us.

5. Heavy noise on the wave forms

1. The noise occurs as there is no signal from

the limbs electrode.

2. If the polar plate in the limbs electrode is

blacked or copper colored, or if ECG gel

residue remains, the signal may not be

detected. Replace it.

3. If discoloring is too noticeable in the limbs

electrode, replace it.

6. The wave pattern shows the straight line

among V1~6.

1. If some wave patterns are too small as

shown in the problem 6, the problem is most

likely to be with the patient cable, limbs

electrode or chest electrode.

2. If the problem is not with the accessories,

then the main board is the problem.

3. The main board must be shipped to us for

repair since the condenser of the main

board must be replaced.

7-1. When diagnosis output key is pressed, the

measurement goes on past 10S.

7-2. Operation stops at processing, print after

10S measurement.

1. Replace the main board.

* If the above procedure does not solve the

problem, please contact us

8. The backlight on the screen is on, but there is

no display.

1. Check the Key cable which connects Key

board and the main board and replace the

main board.

C7SM-1.01 22/70


2-3. Diagnosis

Problem Resolution

1. The diagnosis shows LVH.

1. If disease is diagnosed, abnormal ECG always

appears.

2. LVH occurs when the sum of one of V1 or V2

and one of V5 or V6 is 3.5 or higher.

3. Upgrade to the latest version of the software.

2. Diagnosis shows MI.

1. If MI is diagnosed, it is likely that the print button

was pressed before the wave patterns are

stabilized.

2. Check HR before printout and print it again.

3. Upgrade to the latest version of the software.

C7SM-1.01 23/70


2-4. Filter

Base line Filter

Base line drift is caused by a patient‟s breathing. ECG signal is overlapped on a large parabola. If

you want to set Base line drift, select „ON‟. Otherwise, select OFF. The set value appears on the

bottom part of the printed form indicating 0.1HZ- when set to ON, and 0Hz- when set to OFF.

AC Filter

In addition to ECG, other signals such as power noise, base line drift by respiration and

electromyogram may be recorded in the output signals.

There are three types of the noise filter; 60Hz, 50Hz and OFF. When set to OFF, noise is not

eliminated. Set to 50Hz, it indicates to filter 50Hz power noise. Set to 60Hz, it means filtering 60Hz

power noise.

When the system is powered by battery, power noise is not generated, so you may have clear

ECG signal if set to OFF. In Europe where the power noise is 50Hz, the system is set to 50Hz. In other

nations including Korea and the U.S., it is set to 60Hz.

The status of the set filter can be checked on the bottom part of the printout, indicating AC 60Hz,

AC 50Hz or AC OFF.

C7SM-1.01 24/70


Low Pass Filter

When ECG is not clear even after all three filters are set to ON, the use of low frequency filter will

produce clear ECG signal. The low frequency filter can be set to 40Hz, 100Hz, and 150Hz and OFF.

Set to 40Hz, it eliminates all signals over 40Hz. The set value is indicated on the lower part of the

printed form. If you set the filter to OFF, -250Hz is indicated. If set to 40Hz, -40Hz is indicated. Set to

100 Hz, -100Hz is indicated. If set to 150Hz, -150Hz is indicated.

FREQUENCY 40HZ100HZ 150HZ 250HZ

C7SM-1.01 25/70


2-5. Trouble Shooting Guide

1) Power is off

The power is off

Does the power input cable break

down?

Change the power input cable

Is the fuse blown?

Change the fuseAgain blown

fuse

Does the power switch cable short-

circuit?

Change the power switch cable

Does the main power

connector break down?

Change the main power connector

Normal operation

UseNo

Yes

Yes

Yes

Yes No

Yes

B

A

B

Does the main power module produce the

power properly?

Repair or change the main power

moduleNo

Yes

Ask the manufacturer

about it, then take action

No

Yes

A

A

A

A

A

No

No

No

C7SM-1.01 26/70


2) LCD is blank although the power is on

LCD is blank although the power is on

Broken 20 pin shield cable?

Change the 20 pin shield cable

Does the LCD cable have a poor condition of connection or short-

circuit?

Check the condition of the connection and then change if it's not good

Is the LCD module

unsatisfactory?

Change the LCD Module

Normal operation

Use

No

Yes

Yes

Yes

No

Yes

B

A

B



A

A

A

No

No

C7SM-1.01 27/70


3) Printer is not working properly

When the printer is not working

properly

Does the paper come out while printing?

Does the motor work properly?

Does the signal come out on the paper while printing?

Normal operation

Use

No

No

Yes

B

A

B



Have you connected the motor power

cable correctly?

Change the motorNo

Connet the motor power cable

correctlyNo

Have you connected the

TPH powor cable correctly

Connect the THP power cable

correctlyNo

Does you place on the

printer correctly?

No

Make the paper flat and place it facing up in order to let printer

cover shut?

Is the motor power cable satisfactory?

Change the motor power cable

Is the TPH power cable is satisfactory?

Change the TPH power cable

Yes

Yes

Yes

Yes

Yes

No

No

Yes

Yes

A

A

A

A

A

C7SM-1.01 28/70


4) EKG wave does not come out or it's very small

EKG wave does not come out or

small

Is the patient cable

connecter correctly?

Reconnect the patient cable

carefully

Is the patient cable short-circuited?

Is the electrode

connected to the patient

cable correctly?

Normal operation

UseNo

No

Yes

Yes

B

A

B

Is the electrode

connected to the patient

cable correctly?

A

Change the patient cable

A

Cleanse the electrode with

alcohol or water, then it use

Reconnected the electrode to the

patient cable properly



No A

A

Yes

No

Yes

Control the volume by setting

a gain on the main board

Is the EKG signal adjusted

properly?No

Yes

A

C7SM-1.01 29/70


5) USB memory does not working properly

EKG files do not write to USB memory

properly

Is USB memory formatted in FAT file system?

Is USB memory space full ?

Does the USB sig cable have a poor condition of connection?

Is USB sig cable broken?

Format USB memory in FAT

file system

Remove all files in USB memory

Check the condition of the connection and Re-

connect the cable.

Exchange the USB sig cable

No

No

No

Yes

Yes

Yes

Yes

No

Ask the manufacturer about it, then take action

C7SM-1.01 30/70


6) USB barcode reader does not working properly

Does USB Barcode reader not work

properly?

Does the USB sig cable have a poor condition of connection?

Is USB sig cable broken?

Check the condition of the connection and Re-

connect the cable.

Exchange the USB sig cable

No

Yes

Yes

No

Ask the manufacturer about it, then take action

C7SM-1.01 31/70


Section 3. Adjustment

3-1. LCD Backlight

The LED backlight is powered by two resistors as shown in the following figure.

C7SM-1.01 32/70


3-2. Lead Fault

NOTE

Ready LED is turned off when the lead fault occurs.

C7SM-1.01 33/70


3-3. Filter Setting

AC power noise, base line drift caused by breathing , EMG signal can be recorded along with

the output ECG signal. To set the AC noise filter, move to “FLT” menu to call up “AC” menu and

press key. key toggles between off, 50hz, 60hz. Off indicates that filter does not

suppress ac interference. As for 50Hz or 60Hz, filter suppresses 50Hz or 60Hz AC power noise. In case

of battery power, ECG signal is clear only with Off setting because AC noise interference hardly

exist. The selection is 50Hz for most of Europe and 60Hz for USA and other countries. The selected

setting is shown on the bottom line of the output form indicated AC 60Hz, AC 50Hz or AC OFF

Base line drift is caused by patient breath. Base line drift filter can be set by pressing key.

BASE key switches on or off. off, 0.05, 0.1 or 0.2Hz indicates base lien filter is applied or not.

The selected setting is shown on the bottom line of the output form indicated by „0.1hz-„ as for filter

on and „0hz-„ as for filter off.

EMG signal is induced from muscle and internal organs of the patient.

For clear ECG signal output, it is necessary to eliminate EMG signal interference.

EMG filter can be set by pressing MUSC key. MUSC key switches on or off.

On or off indicates EMG filter is applied or not. The selected setting is shown on the bottom line of

the output form indicated „EMG:On‟ or „EMG:Off

Low pass filter can be selected to optimize ECG signal after applying above three filters and if

ECG signal is still interfered. To set the low pass filter, move the menu to “FLT” to call up “LPF” menu

and press key. key toggles between off, 40hz, 100hz, 150hz. As for 40Hz, it indicates

filter suppresses higher frequency than 40Hz. The selected setting is shown on the bottom line of the

output form indicated by „Off„ as for off, by‟-40hz‟ as for 40hz, by‟-100hz‟ as for 100hz, by ‟-150hz‟ as

for 150hz.

To apply filter could result in ECG distortion. So, filter should be appropriately applied to reduce

the fluctuation without affecting the ECG signal when output signal is badly interfered only.

For your reference, base line file and ac filter should be always active and EMG filter can be

applied appropriately. It is recommended for LPF to set 150Hz during diagnosis.

C7SM-1.01 34/70


Section 4. Block Diagram/Description

4-1. Circuit Block Diagram

Basic Module

CPU Module

Analog Module

Character LCD

User Interface Module

CPU

DDR32G x 2

EMMC4G

USB OTGConnector

PMIC

JTAGConnector

PRINTER ASS’Y

MCU3.3V, 5V Power

Isolator

Shield Driver

ECG AFEPACE Detec-tor

Membrane Keys Isolator

ThermalPrinterHeader

StepMotor

PaperSensor

Analog Module Connector

Analog Module Connector

User Interface Module Connector

Printer Connector

USB 1 Port

LAN PORT(RJ45)

Touchcontroller

BacklightPower

RS232Transceiver

EthernetTransceiver

PaperSensorDriver

5V, 3.3V, 4.2V

Power

MotorDriver

TPH SignalTransceiver

Charger Power MCU

System Power Switch

Coin Battery Buzzer

User Interface Module ConnectorPSU ConnectorBattery Connector

Ready LED

AC / Battery Indicator LED

24VPrinter Power

PrinterMCU

Battery Cable PSU CableUser Interface Signal Cable Analog Board Cable

Printer Cable

Character LCD Pin Header

Character LCD Pin Header

Patient Connector

Power SupplyUnit

Battery

Uartport

C7SM-1.01 35/70


4-2. Equipment Overview

1) Top

A : Printer Assembly

B : LCD Assembly

C : Control Panel

2) Bottom

A : Battery Cover

A C

B

A

C7SM-1.01 36/70


3) Front

A : Printer Cover Switch

B : Top Cover Assembly

C : Bottom Cover Assembly

4) Rear

A : Protective Ground Terminal

B : Power Switch

C : AC Power Connection Port

D : USB Port (Use for equipment upgrade only)

E : RJ45 LAN Port

A

C

B

C

A B

D E

C7SM-1.01 37/70


5) Right Side

A : Patient Cable Connection Port

6) Left Side

A: Handle

A

A

C7SM-1.01 38/70


4-3. Size and Weight

Size: 290(W) X 300(H) X 89.5(D) mm

Weight: approx. 3 Kg

C7SM-1.01 39/70


Section 5. Disassembly and Assembly

5-1. Module Description

Base Board

CPU Board

Power Board

(SMPS)

UI Board

C7SM-1.01 40/70


1) UI Board

A : Main Cable (Input Voltage)

B : Membrane Keys Connector

C : LCD Connector (LCD)

D : FFC Cable (40 pin)

It is linked to the Base Board with a Cable and consists of Membrane keys, Power Indicator LED, Battery

Indicator LED, Ready LED.

- Membrane Keys

- Power Indicator LED : Show the state of connection with AC adapter and a green light indicator

when plugging AC adapter into device.

- Battery Indicator LED : A light indicator lets you know that there is battery and show your current

battery charge strength. A red light indicator lets you know that the battery is charging and a

green light indicator lets you know the batter is fully charged.

- Ready LED : It Indicate the lead connection status.

A

B

C

D

C7SM-1.01 41/70


2) Base (Power + Analog) Board

A : USB Port

B : LAN Port

C : Switch Connector

D : Input DC Connector (SMPS Output)

E : Voltage Regulator (3 ea)

F : LCD Data Connector

G : Motor Driver

H : Main Connector

I : Transformer

J : Isolation IC (2 ea)

K : Patient Cable Connector

L : MCU (3 ea)

The digital part consists of MCU, DC/DC Converter, DC/AC Controller and chip, which are linked

to other external modules.

A

B

C D E F

G

H

J I K

L

C7SM-1.01 42/70


3) CPU Board

A : MCU

B : DDR3 SDRAM

C : Power Management

D : eMMC Flash

C7SM-1.01 43/70


4) Power Module (MDS-065APS15-BA)

It receives 100-240V AC, 50-60Hz signal or battery and supplies 15V to the Base board.

5) Printer

It consists of the TPH (Thermal Printer Head), motor, and paper sensor. And it is linked to the Base

board with 3 pin, 6 pin, and 14 pin cable and approves 24V AC power which will be approved only

if the printer assembly is working.

C7SM-1.01 44/70


6) Battery

It is linked to the Digital board with a 3 pin cable. It is 10.8V, 3350mA/h and consists of three 4.2V,

3350mA/h Li-ion Rechargeable battery. It is packed in parallel with 2 sets which are connected with

3 cells in series and 1 spacer.

The cables of battery consist of 3 pins connector which are VCC, GND, GND (Battery Check) as

follow picture. GND (Battery Check) cable should be connected to the board, because the cable

is for checking the status of battery.

GND

GND (Battery Check) VCC

C7SM-1.01 45/70


7) LCD

Character LCD : It connects to CDUI Board LCD with 14 pin Pin Header. It consists of LCD.

C7SM-1.01 46/70


5-2. Internal Block Diagram & Cable

Power

Managing

MCU

Lithium Ion

Battery

Power

Supply

Unit

System

5V Regulator

System

3.3V Regulator

PMIC

USB

Battery

Green

LED

Battery

Orange

LED

AC

Green

LED

Power

Button

24V

Printer Power

PM

3.3V LDO

Printer

MCU

VSYS(15V, 9V~12.6V)

VLINE(15V)

VBAT(9V~12.6V)

SYS_5V

SYS_3.3V

System PowerControl

PowerState

Signals

BatteryLevel

BatteryTemp.

User interface

PrinterPowerControl

VPM_3.3V

Battery

Charger

LCD

Power

CPU

VCPU

Analog Isolator

Charger State/Control

BatteryConnection

System

Power

Switch

VSYS_SW(15V, 9V~12.6V)

C7SM-1.01 47/70


2) Cable

LCD Assembly

40Pin FFC Cable

Battery Cable Assembly

C7SM-1.01 48/70


QN-TPH-Cable

Motor Assembly

Power Switch Cable Assembly

C7SM-1.01 49/70


5-3. Disassembly

Step1. Removing the Top cover

a. Removing the 5 screws from the bottom cover.

C7SM-1.01 50/70


b. Removing the Top cover.

1) Open the printer cover by pushing slide knob.

2) Disconnect 40 pin FFC cable and Main Cable.

3) Remove Top cover as shown below.

• Pull 40 pin FFC Cable from the connector of Base board.

C7SM-1.01 51/70


C7SM-1.01 52/70


Step2. Replacing the Printer Assembly

a. Remove the 4 screws from the bottom cover.

b. Disconnect the 3 printer cables from the Base Board.

C7SM-1.01 53/70


Step3. Replacing the Base Board

a. Remove the 9 screws from the bottom cover.

C7SM-1.01 54/70


b. Disconnect the power connector and the battery cable.

c. Disconnect the power switch cable and ground cable.

C7SM-1.01 55/70


Step5. Replacing the Power Module (SMPS)

a. Disassemble Ground cable of Power Board (SMPS) and AC Inlet Ground cable from

Protection Grounding Terminal.

b. Remove the 4 screws from SMPS Bracket.

C7SM-1.01 56/70


Step6. Replacing the Key Board

a. Remove the 4 screws from Inside of Top cover

C7SM-1.01 57/70


b. Remove the 4 screws and disconnect the 40Pin SMD FFC cable, Main cable, Membrane

Keys cable.

Step7. Replacing the LCD

a. Remove the 4 screws from LCD bracket

C7SM-1.01 58/70


Step8. Replacing the Battery

a. Remove the 2 screws from Bottom cover

b. Take out Battery from Bottom cover

c. Remove the Battery cable connector

C7SM-1.01 59/70


5-4. Assembly

Assemble the reverse way from Step.8 to Step.1

* Note

Please check whether two parts which is circled in red (rubber handle & printer lock) are

connected correctly.

C7SM-1.01 60/70


Section 6. Replaceable Parts List and Accessory

6-1. Replaceable Part List

< Top Cover Ass’y>

C7SM-1.01 61/70


C7SM-1.01 62/70


C7SM-1.01 63/70


Section 7. Connector Pin Assignment

7-1. Patient Cable Port

Pin Description

Pin Name

1 V2

2 V3

3 V4

4 V5

5 V6

6 GND

7 N.C

8 N.C

9 RA

10 LA

11 LL

12 V1

13 N.C

14 RL

15 N.C

C7SM-1.01 64/70


Section 8. PCB Part Disposition

8-1. Base (Power+Analog) Board

C7SM-1.01 65/70


8-2. CDUI Board

C7SM-1.01 66/70


8-3. CPU Board

< Bottom>

C7SM-1.01 67/70


Section 9. Software Upgrade

9-1. Requirement of Upgrading

[ AdvancePreparation ]

1) USB memory (*Note 1)

2) Unzip the bionet.zip file and copy to USB memory the bionet.zip file.

3) Copy to bionet_ekg2000\packages folder the bup file.

* Note 1: File system of USB memory must be the FAT32 or FAT .

C7SM-1.01 68/70


9-2 Procedure of Upgrading

(Cardio7 UI screen, upgrade method is same)

1) Connect to the usb port that upgrade software files are copied to a usb memory.

Setup Path

- key → SYS → UPGRADE

2-1) Enter the Password

2-2) Run Upgrade Program that check the password.(*Note 1)

* Note 1 :PASSWORD: Products that display the current date (MMDD) .

- key → SYS → DATE

- ex) Basic → Date : Aug, 25 → Password : 0825

C7SM-1.01 69/70


3-1) Select the upgrade file.

3-2) Press key.

4-1) Select the APP(version) → Press key.

4-2) Run to upgrade.

5) When the upgrade is complete, turn off and on.

C7SM-1.01 70/70


International Sales & service

Bionet Co., Ltd. :

5F, Shinsegae I&C Digital Center 61 Digital-ro 31 gil,

Guro-gu, SEOUL 08375, REPUBLIC OF KOREA

Tel : +82-2-6300-6410 / Fax : +82-2-6499-7789 / e-mail: [email protected]

Website: www.ebionet.com

U.S.A sales & service representative

Bionet America, Inc. :

2691, Dow Ave, Suite B

Tustin, CA92780U.S.A.

Toll Free: 1-877-924-6638 / Fax: 1-714-734-1761 / e-mail: [email protected]

Website: www.bionetUS.com

European sales & service representative

MGB Endoskopische Gerä te GmbH Berlin :

Schwarzschildstraße 6

D-12489 Berlin, Germany

Tel: +49(0)-30-6392-7000 / Fax: +49(0)-30-6392-7011 / e-mail: [email protected]

Website: www.mgb-berlin.de

Bionet Co., Ltd

Model Name: EKG2000
http://www.ebionet.com/http://www.bionetus.com/http://www.mgb-berlin.de/

cardiotouch3000 service manual · 2020. 4. 29. · service manual of cardio 2000 1-3. equipment...

Documents