![background image](http://html1.mh-extra.com/html/daikin/ftkb09axvju/ftkb09axvju_service-manual_2459336081.webp)
Refrigeramt Diagram
73
4
+
3
~
2
~
1
–
Multimeter
6.9 Power supply waveforms check procedures
Measure the power supply waveform between No. 1(Live) and No. 2(Neutral) on the terminal board, and
check the waveform disturbance with oscilloscope.
•
Check if the power supply waveform is a sine wave (Fig. 1).
•
Check if there is waveform disturbance near the zero cross (sections circled in Fig. 2).
2
.
g
i
F
1
.
g
i
F
)
4
4
4
1
R
(
)
6
2
7
1
R
(