Daikin FTXB50BV1B Service Manual page 72

Appendix A
6.10 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 osciloscope.
• 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. 1
6.11 Retrived parameter using D-checker cable and software
Only applicable for ARXN/RXN25/35/50/60M, RXB50/60B
D-checker cable and software needed to enable connection to outdoor unit. Malfunction code
and other operation data are display as shown below.
(R1726)
D-Checker cable
Fig. 2
D-Checker software
(R1444)
66