Display Drive Board Test - EDAN SE-601A Service Manual

SE-601 Series Electrocardiograph Service Manual

5.3.6 Display Drive Board Test

NOTE: Only test the display drive board on SE-601B/C.
To verify the display drive 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
①
②
③
④
⑤
⑥
⑦
Test Point
TP1
TP3
TP7
TP8
TP9
VR1_2
FB2_2
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Inspection and Troubleshooting
Reference Result
8.40~10.50V
3.14~3.46V
4.75~5.25V
-10.50 ~ -9.50V
14.30~15.70V
1.80~2.20V
5.00~556V