Axpert KING 5KVA - Buck Circuit Checks; Buck MOSFET and Diode Checks

SERVICE MANUAL
3KVA/5KVA-230V
18
V201703A
3.3 Check the buck circuit
Power devices
BUCK MOSFET and Diode: Q32 / D13
QB2 QD2 QA1 QC1 QD4 QD3 Q32 D13 Q30 Q29 Q27 Q28
Parts
Attribute
Reference values
Failure status
Q32
Resistor
GE: 22.7 K
GC: 225.3K
CE: 1.25M
Short or explosion
Diode
SD or CE: 0.37V
DS or EC: OL
D13
Resistor
+ to -: 178K
- to +: 15M
Diode
+ to -: 0.37V
- to +: OL