Service manual

S0740 800 179/E071123/P64
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ct33_15_1
Gate d river stages
Transformer TR1 is a gate driver transformer for galvanic isolation of the drive circuits from
controller board 20AP1.
Switching circuit
The switching transistors are integrated in the semiconductor module, PM1.
Supply to 2AP1
The board supplies power supply board 2AP1 with 325 V DC (pins F1 and F3, connector
15XS1).