Fukuda Denshi VaSera VS-1500, Service Manual

Page: 80 / 216

Chapter
5
Maintenance
5-48
Confidential Copying Prohibited
●
Electrical Inspection
Item Inspection Item Procedure Criteria
Power
1 Power supply
Turn the power ON and check the
screen. Display turns ON at power ON.
1 Display test
Verify if any abnormality or flickering. No abnormality or flickering
should be found. Waveform
should be properly displayed.
Displ
ay
2 Display test
Check according to “5.3.15 Testing the
Display”. All dots should be displayed in
correct colors.
Touch Pane
l
1 Touch panel test
Check according to “5.3.17 Testing the
Touch Panel”. The touched point should
properly respond.
Contro l Pane
l
1 Fixed key test
Check according to “5.3.14 Testing
Operation Panel Fixed Keys”. Symbol corresponding to the
pressed key should highlight.
Soun
d
1 Sound test
Check according to “5.3.16 Testing
Sound and Tone”. Proper sound or tone should
generate.
1 Print
Check if waveforms are properly
printed. Waveform should be properly
printed Built-in Recorder
2 Built-in recorder test
Check according to “5.3.2 Testing
Built-in Thermal Array Recorder”. No zigzag running, irregular
recording and missed dots.
Recording speed should be
within 5/10/12.5/25/50mm
±
3%.
I/O 1 I/O test
Check according to “5.3.3 Complete
I/O Test”. No error should be found after
performing 100 tests.
1 Zero point
Check the pressure value when no
connection is made to the air
connectors. Should be within 0
±
1mmHg.
2 Pressure accuracy
Check according to “5.3.12 Confirming
Pressure Accuracy”. Should be within
±
3mmHg
.
3 BP test
Measure the BP of the limbs. Should be proper value.
4 Maximum pressure
Should be 320
±
10mmHg.
5 Inflation time Should be 9 sec. or less.
6 Air leakage Should be 6mmHg/min or less.
7 Quick exhaust Should be 10 sec. or less.
8 100% open Should be 20 to 60mmHg/sec.
9 75% open
Should be 10mmHg/sec or
above.
BP
10 Time limit
Check according to “5.3.10 Testing
Pump Unit”.
Should be 130
±
10 sec.
Should be 8
±
1 sec. at high
speed.