Daikin FTK25JVE9 Service Manual page 95

Check
< Measuring positions >
Take measurements at the power transistor (+) and (-) terminals in the same way as described
in section 1.
Set the multi-tester to DC and VOLTAGE RANGE before measurement.
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86
Since capacitor (+) and (-) are connected to power transistor (+) and (-), capacitor voltage
can be measured at the power transistor (+) and (-) terminals.
Si04-115
Service Diagnosis