AEC IST5 Series, Service Manual

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15. J1 socket can be loaded with 100Ω 23W (0,5A) resistance. Signals in the oscilloscope
can be seen in the following picture.
16. Please pay attention that voltage spikes should not be happened on the signals. The
peak signal in the channel 1 should not pass 20V, the peak signal in the channel 2
should not pass 600V.
17. 15V supply should be from J4 socket.
18. 0-900VDC supply is increased by 50V. Once it reaches 250VDC, output voltage should
be 27VDC±%2, input should not be passes 200Ua from DC supply and D15 LED
becomes ON. The measuring device on R60 is seen as 12V±%2 or above.
19. Incoming voltage set to 550V. It is loaded by resistance 24Ω 100W (2A) from J1
socket. The signals can be seen in the following picture. Voltage spikes should be
occurred and output voltage should be observed as 48V±%2 and above.