Power Supply Waveform Check - Daikin CTXG09QVJUW Service Manual

SiUS121630EA
8.4

Power Supply Waveform Check

Check No.11 Measure the power supply waveform between No. 1 and No. 2 on the terminal board, and check
the waveform disturbance.
[Fig.1]
Service Diagnosis
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)
[Fig.2]
(R1736)
Check
(R1444)
193