Voltronic Axpert VM IV - Check the Inv Full Bridge on Main Board

17
Drivers (This part is only used for repair checking)
The R103 are (10R 1206)
The R106 are (47R 1206)
The D36 are (1N4148W 0.15A 75V SMD)
Parts
Attribute
Reference values
Failure status
R106
Resistor
47 ohm
Open or other values
R103
Resistor
10 ohm
D36
1
Resistor
+ to -: 240k
- to +: OL
Short or explosion
Diode
+ to -: 0.6V
- to +: OL
Note1: When test the diode; please remove the R103 from the board, otherwise the
test result is not right.
3.4 Check the INV full bridge on MAIN board
Power devices
INV IGBT: QA1/QC1/QB2/QD2