GE Cardiocap 5 Service Manual

Installation and Functional Check 
Analog outputs 
Each analog output signal is scaled linearly between –5 and +5 volts. The resolution is 4096 steps 
over 10 volts, or approximately 0.00244 volts per step. All signal levels are updated every 10 ms. 
OFF Default state. No signal is present at the analog output pin. 
HR according to selected source (display value)  
The original scale of 0 to 300 beats is scaled between 0 and 3 volts. 
ECG1, ECG2, ECG3  
The original scale of –5000 microvolts to +5000...

Cardiocap/5 Technical Reference Manual 
TEST 2 Test signal of a triangle shape with a base width of 4 seconds (–5 V minimum; +5 V maximum). 
Special indications for analog outputs 
Start-up indication occurs when the monitor is started by a power on or by an internal restart (caused 
by a fatal failure). The indication consists of three triangle-shaped signals with a base width of 1 
second, base of 0 volts, and a height of 5 volts. 
Airway gas calibration:  During calibration of any gases, a square...

Installation and Functional Check 
2.5 Connector pin assignments 
2.5.1 Analog/digital output connector (X1) 
CON./ I/O BOARD SIGNAL DIRECTION LEVEL FUNCTION 
X1/1 GND – 0V GND 
X1/2 N/C    
X1/3 DSYNCOUT O CMOS Defibrillation sync. 
X1/4 N/C    
X1/5 NCALLOUT O CMOS Nurse Call 
X1/6 N/C    
X1/7 GND – 0V GND 
X1/8 to X1/10 N/C    
X1/11 NCALLB1 – – Nurse call relay 
X1/12 NCALLB2 – – Nurse call relay 
X1/13 N/C    
X1/14 A1OUT O  Analog output 
X1/15 +5VOUT – +5V +5 V output voltage 
X1/16 N/C...

Cardiocap/5 Technical Reference Manual 
2.5.2 RS-232 serial communication interface/local printer connector (X2) 
Connector X2 provides an RS-232 serial communication link with handshaking. 
 
 
D9 male connector pinout (front view) 
  
CON./ I/O BOARD SIGNAL DIRECTION LEVEL FUNCTION 
X2/1 GND – 0V Ground 
X2/2 RXD I RS232 Serial bus, Receive 
X2/3 TXD O RS232 Serial bus, Transmit 
X2/4 +5VS – +5V +5 V output voltage, maximum 200 mA 
X2/5 GND – 0V Ground 
X2/6 N/C    
X2/7 RTS O RS232 Serial bus,...

Installation and Functional Check 
2.5.4 Ethernet connector (X4) 
The Ethernet interface meets IEEE 802.3 specifications (10BASE-T) with hospital-grade approved 
power and data transformers. 
 
Ethernet connector (front view) 
  
PIN SIGNAL DIRECTION FUNCTION 
1 Tx + O Transmit data 
2 Tx – O Transmit data 
3 Rx + I Receive data 
4 N/C   
5 N/C   
6 Rx – I Receive data 
7 N/C   
8 N/C   
    
2.5.5 Remote Control connector (X5) 
CON./ I/O BOARD SIGNAL DIRECTION LEVEL FUNCTION 
X5/1 CLK I/O TTL Keyboard...

Cardiocap/5 Technical Reference Manual 
2.6 Functional check 
The functional check consists of instructions to verify the correct operation of the Cardiocap/5. The 
functional check is recommended after installing the monitor and after long storage.  
The first part of the instructions contains procedures that are performed through the service menu. 
These checks are especially recommended if the monitor has been stored and not used for a long 
time. 
When installing a new monitor, performance checks...

Installation and Functional Check 
2.6.1 Functional inspection 
1. Connect the power cord. 
Check that the green external power indicator/battery charge status LED turns on or starts 
flashing. 
 
2. Switch the monitor on. Check that the monitor starts up as follows: 
• The start-up sound is heard from the loudspeaker 
• The normal monitoring screen appears 
• The alarm LEDs turn on and off after about 20 sec 
• No error messages appear onto the screen 
• If the monitor contains a recorder, start-up...

Cardiocap/5 Technical Reference Manual 
5. Check that the supply voltages are within the given limit values: 
Press the ComWheel to enter the Main Menu and select: 
Monitor Setup 
Install/Service (Password 16-4-34) 
Service View (Password 26-23-8) 
Monitor  
Voltages 
Voltages Mains power ON Mains power OFF 
VDD/BAT 14.3 to 16.2 10 to 13 
VIN 15VB 10 to 14.5 10 to 13.5 
VDD 15.0 to 16.5  
+12V 11.4 to 12.6  
+15VD 14.25 to 15.85  
+15V 14.4 to 15.6  
-15V 15.6 to 14.4  
+2.5VREF 2.40 to 2.54  
TEMP 10...

Installation and Functional Check 
Recorder test (if N-XREC option is included) 
7. Open the paper compartment cover and check that the “Recorder: Cover open” message is 
displayed. Close the cover. 
 
8. To record waveforms, press the ComWheel to enter the Main Menu and select: 
Record/Print 
Record Waveforms 
Record Wave 
Check that the recording quality is acceptable.  
To stop recording, select Stop Wave. 
Press the Record Waveform/Stop key and verify that the selected waveforms print.  
Press the...

Cardiocap/5 Technical Reference Manual 
Repeat the test using a Data card in the other memory card slot. Verify that the green Data card 
symbol is displayed if the battery charging symbol is not present, the “Data card inserted” 
message appears, and the Card type is DATA.). 
 
Network test (if N-XNET or N-XDNET option is included) 
12. Connect the Monitor-Network cable and the Identification plug to the monitor. To check the 
connection to the network, check the Network connection LEDs between the...