The repaired Lecroy oscilloscope was sent back this morning, we can use it to record the waveforms from now.I received the new relays this afternoon, the circuit breaker was still kicked off after settling down them. Mike suggested to check the voltage phases. I found that I connected K3-1 and K3-3 incorrectly. The filament voltage became normal(~5.4 V DC, each side 2.7 V) after switching these two connectors. Then I tried to test the whole system, but this time there was no voltage spplied to Hiptronics High Voltage Power Supply. I measured the voltages on the MO5B board, the TB01-01 and TB01-03 both are zero, they are connected to MO5ATB03-01 and MO5ATB02-09 respectively(circuit drawing shown right). So I will check MO5A tomorrow.
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