EDAN SE-1200 Express - Power Supply Board Test

SE-1200 Series Electrocardiograph Service Manual Inspection and Troubleshooting
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SE-1200 / SE-1200 Express Key Board
4) Compare the measurement results with the reference results in the list. If any one of the
results exceeds the reference range, the key board defection is confirmed. Replacement of the
key board is recommended.
5.3.4 Power Supply Board Test
To verify the power supply board,
1) Open the main unit following the procedures described in Chapter 6, “Electrocardiograph
Disassembly”.
2) Switch on the device.
3) Measure the voltage to earth of the test points listed below by using a multimeter.
Item
Test Point
Reference Result
①
12V
+12V±0.6V
②
5V
+5V±0.25V
③
Charging：12~16.8V
/ Battery Voltage
④
GND
⑤
GND
⑥
GND
① TP1 ② TP2
③ GND