Mindray M8 User Manual

Description of Self-test Test Items C-3
C.1.6 Z0205 TRA AFE Digital Interface Test
 Top test items
TRA AFE SPI Interface Test
 Test content
Enter system test mode, write the data to TRA AFE, input delay RAM, re-read the
data from delay-channel memory and make the judgment to locate the channel and
AFE clip.
 Analysis to test failure
The drive goes wrong if the test result appears Error.
AFE clip goes wrong if the test result is FAIL.
 Suggestion to failure test
a) Restart the device and perform the self-test if the test result appears Error, which
indicates the logic error of DSP FPGA occurs. It is necessary to restore the
device if Error re-appears.
b) It is recommended to replace CPU if the test result is FAIL.
C.1.7 Z0206 ATGC Function Test
 Top test items
TRA AFE Digital Interface Test
 Test content
Control a channel to transmit 2V waveform. Collect the waveform that AFE receives
as setting ATGC to max, min and medium value. Judge whether the amplitude of
waveform changes as ATGC increases according to the analysis on RMS value.
 Analysis to test failure
The drive goes wrong if the test result appears Error.
The circuit of ATGC gain adjustment goes wrong if the test result is FAIL.
 Suggestion to failure test
a) Restart the device and perform the self-test if the test result appears Error. It is
necessary to restore the device if Error re-appears.
b) It is recommended to change CPU if the test result is FAIL.
C.1.8 Z0207 TRA Transmission and Reception Function
Test
 Top test items
ATGC Function Test
 Test content
Test the coherence of 64 channels (from 65
th
channel to 128
th
channel) in transmitting
and receiving: one channel transmits 2V 1M PHV1 waveform each time, and
analyzes whether the waveform belongs to PHV1, and compares the signal-to-noise
ratio of the channel with others.
 Analysis to test failure
The drive goes wrong if the test result appears Error.

Mindray M8 Specifications

General

Brand	Mindray
Model	M8
Category	Medical Equipment
Language	English