Required motherboard diagram schematic VIPER27H burned I think the IGBT transistor is not working. What else could burn out

If Viper27H burned, the panel would not be flashing. Maybe damaged (damaged). Then it may flash. Check the power supply of the Viper, if ok, the Viper is damaged or short circuit on the PFC block.

I found this burned. I don't know the label. Does anyone know what this chip is

How to examine A6W transistor?Do you have a scheme

A6w is a diode, about 0.6V. I don't have a schematic.

Kemppi Minarc Evo 150 the display flashes for a few minutes and goes out

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#1 19853679 30 Jan 2022 20:22

az1234652 az1234652

Level 2

Post #1
19853679 30 Jan 2022 20:22

Required motherboard diagram schematic
VIPER27H burned
I think the IGBT transistor is not working.
What else could burn out
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#2 19855769 31 Jan 2022 19:33

smd smd

Welding machines specialist

» | Helpful post? (+3)

Post #2
19855769 31 Jan 2022 19:33

If Viper27H burned, the panel would not be flashing. Maybe damaged (damaged). Then it may flash. Check the power supply of the Viper, if ok, the Viper is damaged or short circuit on the PFC block.
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#3 19880871 12 Feb 2022 22:26

az1234652 az1234652

Level 2

Topic author Helpful post? (+2)

Post #3
19880871 12 Feb 2022 22:26

I found this burned. I don't know the label. Does anyone know what this chip is
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#4 19882886 13 Feb 2022 21:57

smd smd

Welding machines specialist

» | Helpful post? (+1)

Post #4
19882886 13 Feb 2022 21:57

IR1150 or IR1155
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#5 19890525 17 Feb 2022 21:58

az1234652 az1234652

Level 2

Topic author Helpful post? (0)

Post #5
19890525 17 Feb 2022 21:58

How to examine A6W transistor?
Do you have a scheme
#6 19891652 18 Feb 2022 14:11

smd smd

Welding machines specialist

» | Helpful post? (0)

Post #6
19891652 18 Feb 2022 14:11

A6w is a diode, about 0.6V. I don't have a schematic.
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Kemppi Minarc Evo 150 the display flashes for a few minutes and goes out

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