Contents
General information 5
Foreword and safety instructions 7
Safety 7
Fronius Technical Support National (TSN) 7
General 7
Tools and measuring devices 8
Tools required 8
Measuring and testing equipment 8
Ancillary materials 8
Error location aid 9
LED checklists 11
LSTMAG20 LED checklist 11
Measuring points 13
TSt 2200c measuring points 13
Temperature sensor 13
Service codes 15
General 15
Service codes table 15
Replacing modules 23
Replacing modules 25
Safety 25
General 25
Opening the housing 26
Opening the housing 26
Replacing the LSTMAG20 PC board 27
Removing the LSTMAG20 PC board 27
Installing the LSTMAG20 PC board 28
Replacing secondary diodes 30
Replacing the secondary diode 30
Replacing the fan 32
Replacing the fan 32
Replacing the transformer 33
Removing the transformer 33
Fitting the transformer 33
Replacing the solenoid valve 35
Replacing the solenoid valve 35
Replacing the drive 37
Removing the drive 37
Installing the drive 38
Calibrating the motor 38
Replacing the motor plate 40
Removing the motor plate 40
Installing the motor plate 41
Closing the housing 43
Closing the housing 43
MTG 2100 S 44
MTG2100S welding torch/trigger/coaxial cable 44
MTG2100S FSC 45
MTG2100S inspection following repairs 46
Software 49
Software update 51
Software update 51
Service menu 52
3
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