Analog I/O Tests - GE MAC 3500 Service Manual

Troubleshooting
To run the test, connect all the leads to the RL lead on the patient cable, keep the
leads separated and away from any external power supply, and select Acquisition
Module Test.
NOTE:
An effective way to situate the leads correctly is to connect them to a patient
simulator that is turned off.
When the test is complete, the following screen opens with the test results:
NOTE:
The Button Pressed test does not apply to the MAC 3500.

Analog I/O Tests

The Analog I/O Tests check the system's ANA/TTL connection. If any of the tests fail,
it may indicate the CPU board needs to be replaced. Refer to
Board" on page
NOTE:
Analog I/O Test do not work without the ST12/ST15 stress options.
Analog Output Test
The Analog Output Test monitors the following output values:
• +12V
• DC Output 1
• DC Output 2
• ECG Output
• TTL Trigger Output
To conduct the test, select Analog Output Test, select the output value you want to
monitor, and follow the on-screen instructions.
For example, to test DCOut 1, you would select Analog Output Test > DCOut 1.
Following the instructions on the screen, you would connect an oscilloscope to pin 2
and the ground to pin 4 or 5 and check the oscilloscope reading.
54
1) Acquisition Board Noise Floor; 2) Acquisition Board Communication
Test; 3) Acquisition Board Software Version
91.
MAC™ 3500
"Replacing the CPU
2046275-019H