Mindray DC-68, Service Manual

Page: 277 / 281

Description of Self Test Items C-19

Test content
Read the value of TEE temperature signal. The collecting of the TEE angel signal works well if the
value keeps stable.

Analysis to test failure
The drive goes wrong if the test result appears Error .
The interconnection of TEE angel signal goes wrong if the test appears FAIL.

Suggestion to failure test
Restart the device to perform the self test if the test result appears Error. It is necessary to restore
the device (OS+doppler) if Error re-appears.
It is recommended to replace 4D&TEE board if the test result is FAIL .
C.1.41
Z1401
DSP FPGA and ECG Board Interconnection
Test

Top test item
PC module and DSP FPGA interconnection test

Test content
The program decides whether ECG is in the place, sends orders via ECG serial port, judges the
returned data, and parses Bootloader version, board ID and software version.

Analysis to test failure
The drive goes wrong if the test result appears Error .
ECG board is not in the place if the information “ ECG board is not in the place ” appears or the
circuit is not in the place.
The communication between ECG board and main board goes wrong if the information “
Failed to
read the data on ECG board ”.

Suggestion to failure test
Restart the device to perform the self test if the test result appears
Error.
It is necessary to restore
the device (OS+doppler) if Error re-appears.
It is recommended to replace ECG board if the test result is FAIL .
C.1.42
Z1402
ECG Board Self Test

Top test item
Communication test between DSP FPGA and ECG board.

Test content
ECG sends self test order via ECG serial port when it is in the place and analyzes the self test
result, and decides the status for A/D, Flash, DRAM, CPU, Watchdog, Voltage 33.

Analysis to test failure
The drive goes wrong if the test result appears Error .
ECG board goes wrong if the test result is
FAIL
.

Suggestion to failure test
Restart the device to perform the self test if the test result appears Error. It is necessary to restore
the device (OS+doppler) if Error re-appears.
It is recommended to replace ECG board if the test result is FAIL .