Electric Circuit Diagrams
4 - 13
ECG AMP BOARD block diagram
The following is a block diagram of the ECG AMP BOARD.
The electrocardiographic signals input through the patient input connector
pass through the input protecting section to the differential amplifier, where
the right hand, left hand and chest 1 to chest 6 signals are subjected to
differential amplification with respect to the left leg signal. The outputs of
the differential amplifier are converted to digital signals by A-D converters.
Digitized electrocardiographic signals are transferred to the MAIN BOARD
by the AMP G/A. The ECG AMP BOARD block is electrically isolated by
photo-couplers and isolation power supply.
Input
Protector
Differential
Amplifier
20bit A/D
ch1
20bit A/D
ch2
20bit A/D
ch3
20bit A/D
ch4
20bit A/D
ch5
20bit A/D
ch6
20bit A/D
ch7
20bit A/D
ch8
20bit A/D
ch9
20bit A/D
ch10
20bit A/D
ch11
12bit A/D
ch1
R
L
C1
C2
C3
C4
C6
C5
C7
C8
C9
F
RF
AMP
G/A
TxD
RxD
Photo Coupler
Isolation
Power
+5VF
+2.5VA
-2.5VA
A/D Converter
+5V
100KHz
TxD
RxD
Unmount
E25F
PATIENT
CONNECTOR
Содержание FX-7302
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Страница 86: ...Chapter 4 4 18 ...
Страница 87: ...4 19 MAIN BOARD circuit diagram PCB 6956B Power connection table No 1 ...
Страница 111: ...4 43 MARK SENSOR BOARD PCB 6942 MARK SENSOR block Recoding paper 1 2 3 J1 DF4 3P 2C 5 3 4 2 1 PH1 ON2253R ...
Страница 112: ...4 44 MAGAZINE UP SENSOR BOARD PCB 6943A MAGAZINE UP SENSOR BOARD block 1 2 J1 DF4 2P 2C 1 2 3 S1 JPS1220 0401 ...
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Страница 131: ...6 1 MAIN BOARD PCB 6956B component side ...
Страница 132: ...6 2 MAIN BOARD PCB 6956B soldering side ...
Страница 133: ...6 3 OPERATION BOARD PCB 6957B component side ...
Страница 134: ...6 4 OPERATION BOARD PCB 6957B soldering side ...
Страница 135: ...6 5 ECG AMP BOARD PCB 6731D component side ...
Страница 136: ...6 6 ECG AMP BOARD PCB 6731D soldering side ...
Страница 137: ...6 7 MARK SENSER BOARD PCB 6942 component side ...
Страница 138: ...6 8 MAGAZIN UP BOARD PCB 6943A component side ...
Страница 139: ...6 9 CONNECTION BOARD PCB 7028 component side ...
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Страница 162: ...39 4 Hongo 3 chome Bunkyo ku Tokyo Japan Phone 81 3 3815 2121 Fax 81 3 3814 1222 4R2149A 200506 F ...