Mekusa Diana MP-400N Service manual
MP400N
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SERVICE MANUAL VER 1.0 APPLE 1, 2002
- TABLE OF CONTENTS -
1. STRUCTURE OF MP-400N
(1) Standard Functions and Accessories
(2) Additional Options and Accessories
(3) Exterior Structure
(4) Monitor Specification
2. SYSTEM DIAGRAM
(1) Overall System Block Diagram
(2) DSC B/D
(3) ECG B/D
(4) SpO2 B/D
(5) NIBP B/D
(6) SLOT B/D
(7) KEY B/D
(8) ADAPTER B/D(AC–DC)
(9) POWER B/D(DC-DC)
(10) CHARGER B/D
3. Instruction for Operation
(1) ECG(Electrocardiogram) Operation
(2) SpO2 Operation
(3) IBP(Invasive Blood Pressure) Operation
(4) TEMP(Temperature)
(5) NIBP(Non Invasive Blood Pressure) Operation
MP400N
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SERVICE MANUAL VER 1.0 APPLE 1, 2002
4. TROUBLE SHOOTING
5. Circuit Diagram
(1) LIST OF CIRCUIT DIAGRAM
(2) MP1000 DSC BOARD(TOP SHEET)
(3) MP1000 DSC BOARD(ARM7201/RESET/ICE)
(4) MP1000 DSC BOARD(SOUND/VGA/URT/IrDA)
(5) MP1000 DSC BOARD(
(6) MP1000 DSC BOARD(MEMORY)
(7) MP1000 DSC BOARD(POWER/KEY INTERFACE)
(8) MP1000 ECG BOARD(CPU)
(9) MP1000 ECG BOARD(ECG)
(10) MP1000 ECG BOARD(NOTCH FILTER)
(11) MP1000 ECG BOARD(RESPIRATION)
(12) MP1000 SpO2 BOARD(SpO2)
(13) MP1000 SpO2 BOARD(IBP/TEMPERATURE)
LCD/PCMCIA/RTC/LEVEL/SHIFTER
)
(14) MM300 NIBP MODULE
(15) MP1000 SLOT BOARD
(16) MP400NC KEY FRONT BOARD
(17) ADAPTER B/D(AC-DC +15V)
(18) POWER B/D(DC-DC +12V/-20V)
(19) POWER B/D(DC-DC +5V)
(20) POWER B/D(DC-DC +7.5V/-7.5V)
(21) POWER B/D(DC-DC +8.9V)
(22) CHARGER B/D
MP400N
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SERVICE MANUAL VER 1.0 APPLE 1, 2002
6. PART LIST
(1) DSC B/D(ver6.1)
(2) ECG B/D(ver4.0)
(3) SpO2 B/D(ver4.0)
(4) NIBP B/D(ver3.3)
(5) SLOT B/D(ver3.0)
(6) KEY B/D(ver2.0)
(7) ADAPTER B/D(AC_DC +15V)
(8) CHARGE B/D(DC-DC)
(9) POWER B/D(DC-DC +12V/-20V)
(10) POWER B/D(DC-DC +5V)
(11) POWER B/D(DC-DC +7.5V/-7.5V)
(12) POWER B/D(DC-DC +8.9V)
MP400N
SERVICE MANUAL VER 1.0 APPLE 1, 2002
1. STRUCTURE OF MP-400N
(1) Standard Functions and Accessories
Multi Parameter Patient Monitor(
TEMP1, TEMP2
Adult SPO2 Sensor 1EA
NIBP HOSE 1EA
NIBP CUFF 1EA
3 CABLE CLAMPS 1EA
5 CABLE CLAMPS 1EA
POWER CABLE 1EA
10 DISPOSABLE ELECTRODES
USER’S MANUAL 1 Booklet
) 1EA
ECG1, ECG2, SpO2, NIBP, IBP1, IBP2, Resp,
(2) Additional Options and Accessories
58mm THERMAL PRINTER MODULE 1EA
58mm THERMAL PRINTER ROLL PAPER 1EA
IBP MODULE (Invasive Blood Pressure)
IBP SENSOR SET 1EA
TEMP MODULE (Temperature)
TEMPERATURE SENSOR 1EA
RS232 CABLE 1EA
1
MP400N
① POWER : Screen displays when pressed.
② LEAD : Used to select ECG LEAD.
③ FREEZE : Button to turn ON/OFF FREEZE function. Initial press
to freeze the wave, second press to resume display.
④ NIBP : Activates NIBP measurement.
⑤ ENCODER : Views the Pop-UP menu when Encoder is
pressed. Rotate to left and right direction to select desired
menu.
⑥ EXIT : Removes the menu tree when pressed.
⑦ PRINT : Prints the data being measured when pressed.
⑧ ALARM : Press for temporary standstill for 30 seconds during
the course of alarm activation.
⑨ NURSE CALL : Calls for the attendance of personnel in
charge(Doctor/Nurse) when linked to central program
(MP600).
① POWER : Main Power Switch.
② BATTERY SUPPLY : Power Connection to Car Battery (DC12V)
when the device is implemented on motor vehicle(vehicle-
mounted).
③ SERIAL PORT : Links to PC when MEK Genuine Central
Program(MP600) is applied.(In conformity with RS-232C
Standard)
④ VGA OUT : Visual output to ordinary PC Monitor.
SERVICE MANUAL VER 1.0 APPLE 1, 2002
(3) Exterior Structure
2
MP400N
Display 5.7” Mono LCD
6.4” Color TFT LCD
Trace line Mono LCD : 3 Wave form max.
Color LCD : 4 Wave form max.
(ECGⅠ, ECGⅡ, SpO2, IBP or RESP)
Trace speed ECG/SpO2/IBP
6.3, 12.5, 25mm/sec
Resp.
6.3, 12.5, 25mm/sec
Resolution Mono LCD 320 * 240
Color LCD 640 * 480
Display parameter
Heart rate and alarm limit
SpO2 rate and alarm limit
Blood pressure (NIBP, IBP)
Respiration
Temperature
Name,Bed ID, Date & time, Menu and menu information,
Event message
Performance
ECG
Channel : Mono LCD -2 channel / Color LCD-2 channel
Electrode ; 3 or 5electrode
Lead, ; 6Lead(I, II, III, aVR, aVL, aVF) selective
Dynamic range 10mV
Frequency response: menu selective
Diagnostic mode
Lower side 0.05 or 0.5Hz
Upper side 40Hz or 80Hz
Digital band-stop filter (notch filter) - on/off
Monitoring mode (Default Mode): 0.5 ~ 40Hz
and digital band stop filter on (50 / 60Hz)
Heart rate 20 ~300 bpm
Accuracy +/- 2%
Input signal range +/- 0.5mV ~ +/-5mV
Respiration
Method ; Impedance for ECG Lead
Respiration rate 2 ~ 150 bpm
Accuracy +/- 1 bpm
Frequency response 0.1 ~ 4Hz (-3dB)
Impedance range 100 ~ 2K ohm
Detect sensitivity 0.5 ohm min
SpO2 Percentage Oxygen Saturation
Probe MSS0A Finger type reusable sensor
Measurement range 40% ~ 100%
Accuracy Adult
+/- 2%, for readings between 70 % ~ 100%
+/- 3%, for readings between 50% ~ 69%
Neonate
+/- 3 % 70%~ 95%
Unspecified 0 ~ 49%
Setting time Wave out time : 2 sec
SpO2 percentage Display : 10 sec
Averaging (after setting time) 8beat
NIBP (Oscillometric method upon inflation and deflation)
Pressure
Measurement range 0 ~300mmHg
Accuracy +/- 2mmHg or +/- 2%
Cuff
Reusable cuff Adult/Child cuff (STD. accessory)
Disposable cuff Neonatal cuff. (optional)
Auto deflation pressure
Adult 300mmHg
* Neonate 150mmHg
Measurement time max 40sec at standard adult cuff & normal
IBP (2-IBP : Optional)
Measurement range -50 ~ 300 mmHg
Sensor 5uV /mmHg (optional)
Accuracy +/- 2%
Zero balance + / - 150mmHg
Automatic Biasing and scaling for IBP Signal Display
Temperature
Sensor YSI 400 series(optional)
Resolution 0.2 ℃
Measurement range 0 ~ 50 ℃
Accuracy +/- 0.4 ℃ ( 15~34 ℃,41~45 ℃)
+/-0.2 ℃ (34~41 ℃)
Alarms
ECG Heart rate
High limit 30 ~ 300 bpm , Low limit 20 ~ 290 bpm
Respiration rate
High limit 10 ~ 150 bpm , Low limit 2 ~ 145 bpm
* Do not use for the detection of Apnea.
SpO2
High Saturation 52 ~ 100%, 2% Interval (default = off)
Low Saturation 51 ~ 99%, 2% Interval (default = 81%)
Systolic high and low limit setting, 40~300/30~290 ,5mmHg Interval
Diastolic high and low limit setting, 30~290 /20~280, 5mmHg Interval
Mean high and low limit setting, 35~295/25~285, 5mmHg Interval
IBP
Systolic high and low limit setting, 40~300/30~290 ,5mmHg Interval
Diastolic high and low limit setting , 30~290 /20~280, 5mmHg Interval
Mean high and low limit setting, 35~295/25~285, 5mmHg Interval
Temp high limit 20 ~ 50℃
Low limit 10 ~ 40℃
Alarm silence ; 30 second
Alarm on/off ; all parameters on/off selective independently
Power input DC15V +/- 10%
Battery 12 V 2Ah - Continuous operating time: 1 Hr min
Power consumption 50 W max
Dimensions W 267 x H 196 x D 141
Weight 4.5 Kg (with printer, battery)
Environmental
Operating temperature 10 ~ 40℃ (50℉ ~ 104℉)
Storage temperature -20 ~ 70℃ (-4℉ ~ 158℉)
Relative humidity 10 ~90% (storage)
0~95% non-condensing (operating)
Input and Output communication
COM1 RS-232 Baud rate 19200 bps STD I/O communication port
(MEK’S standard protocol)
COM2 VGA Signal Output(MP400NC Only)
Option
Printer Thermal printer (58mm paper width)
Temperature Sensor, YSI 401 type
IBP Sensor Kit (Disposable), Deltran II Series
IBP Cable for MP400N
** Central station MP600: 8ch Central station
Accessories ECG 3 electrode cable, SpO2 sensor, Cuff(Adult/Child) & Hose,
DC15 AC adapter
SERVICE MANUAL VER 1.0 APPLE 1, 2002
(4) MONITOR SPECIFICATION
3
MP400N
CPU
SRAM
FLASH
±7.5V ±8.9V+5V+12V
DC-DC Convertor
16C 55 4 QU AD
FIF O & UA RT
256 KB PS
COM MU NI CA TI ON
RS-232
DSC
(DIGITAL SCAN CONVERTER)
6.4" LCD
MONITOR
INVERTOR
VGA Output
15-DSUB
+ 1 2 V
+ 1 5 V
COM 1
Central System
Speak Output
CF ISOLATION PART
RS-232C
19200,8,N,1
SLO T
ALARM LAMP
EXI T B AT T
EMI /N OI SE
FIL TE R
INP UT
RED TI FI ER
O.S .C
CIR CU T
SWI TC HI NG
CIRCUIT
CURRENT
LIMIT
FEEDBACK
CONTROLL
INPUT
TRANSFORMER
ADA P T E R A/D
+15 V
OUT PU T
BAT T
+15 V
BAT TE RY
CHA GE R
Cha g e r B /D
PR I N T
MO D U L E
(M M 0 0 1)
+ 8. 9 V
NI B P
MO D U L E
(M M 3 0 0)
+ 1 2 V
SpO2, IBP,
TEMP B/D
Controller
(TMS)
±7 . 5 V
+5 V
ECG, RESP
B/D
Controller
(TMS)
±7 . 5 V
+5 V
OPTION
SERVICE MANUAL VER 1.0 APPLE 1, 2002
2. SYSTEM DIAGRAM
(1) OVERALL BLOCK DIAGRAM
4
MP400N
SDRAM
Controller
Address Data
LCD
Controller
DAC
VGA
Controller
Sound
SDRAM
TFT LCD
Mono/ Color
ROM
SRAM
FLASH
RGB
Monitor
OSC
JTAG
STATIC
Memory
ARM720T
Key Board
Controller
16C554
UART0
UART1
UART2
UART3
RTC &
TIMER
Speaker
RS232C
UART0
UART1
ICE and
Boundary Scan
Central System
Printer
ECG
SpO2
NIBP
CO2
DAC
x8
x16
x32
x16
32KHz
SERVICE MANUAL VER 1.0 APPLE 1, 2002
(2) DSC B/D
A. BOARD SNAPSHOT
B. BLOCK DIAGRAM
5
MP400N
RA
LA
LL
C
RL
LEAD
SPARK
GAP
LPF&
BUFFER
WILSON
NETWORK
LEAD
SELECT
CH1, CH2
DIFF
AMP
CH1, CH2
COMMON FEED
BACK SELECT
LEAD FAULT
DETECTOR
SELECT
CONTROL
60Hz/50Hz
NOTCH FILTER
CH1, CH2
FILTER
SELECT
CH1, CH2
SELECT
CONTROL
GAIN
CONTROL
CH1, CH2
HPF
SELECT
CH1, CH2
CPU
(TMS370 )
CARRIER
75kHz
SQUARE
WAVE
Second-order
Integrator
circuit
75kHz
SINE
WAVE
C U R R E N T A D J
TRANS
LEAD(RA, LA)
HPF
Differential
AMP
Amplifier
BASE LINE ADJ & A/D
REFERENCE VOLTAGE OUT
G A I N A D J
HPF
a
a
SERVICE MANUAL VER 1.0 APPLE 1, 2002
(3) ECG B/D
A. BOARD SNAPSHOT
B. BLOCK DIAGRAM
6
MP400N
LD(2-0)
SELECT
DIFF AMP( + )
DIFF AMP ( - )
000 Ⅰ LA
RA
001 Ⅱ LL
RA
010 Ⅲ LL
LA
011
AVR
RA
LA+LL
100
AVL
LA
RA+LL
101
AVF
LL
RA+LA
110 C V
RA+LA+LL
111
CAL
SERVICE MANUAL VER 1.0 APPLE 1, 2002
a. SPARK GAP
Electric Discharge to prevent Electronic Shock when High Voltage(Defibrillator) is applied.
b. LPF(Low Pass Filter)
Filters and passes low frequency signals only. (1/2RC)
c. Buffer
5 Electrodes on Patient’s body consist of RA(right arm), LA(left arm), LL(left Leg), RL(right
leg), C(chest) and signals from these electrodes are to be input to Buffer which is made up
of OP amp. Circuit Clamping diode and Neon lamp circuit on the amplifier is to prevent
instant high voltage of power supply.
d. Wilson network & Lead selector
Respective signal from the Buffer links Lead Selector which consists of Analogue Multiplexer
and LEAD Vector is selected by control signal from the CPU depending on the key input.
e. Differential Amp
Electrocardiograms signal from the Analogue Multiplexer is first amplified through
differential amplifier with CMRR. Reason for applying differential amplifying is to eliminate
the noise not only from the electrocardiogram signal from the electrode attached to the
patient but also to get rid of the noise such as noise from the circuit simultaneously.
f. Lead fault detector
Circuit to detect high-resistance substance and display on the screen in order to report the
status where the attached electrode is detached or improperly attached. Signals from the
differential amplifier are used to detect the facts of saturation through window parallel
drawing device and display on the screen and eventually authorize the signals on the
transformer.
g. 60/50Hz Notch filter
Used to filter unnecessary frequency range. Generally used to eliminate the frequency of
60/50Hz from the power supply
h. GAIN CONTROL
Used to control the gains from wave on analogue basis. CH1 GAIN and CH2 GAIN are
controlled by VR1 and VR2 respectively..
I. HPF SELECT
Only filters the high frequency range.
7
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