Voltronic Axpert VM IV - Check Ac Sps on Mppt Board

26
SG: 0.73V
Q8
Resistor
BC: 356k
BE: 413k
Short or explosion
Diode
BC: 0.59V
BE: 0.61V
U8
Diode
PIN5 TO PIN7: 0.48V
PIN5 TO PIN6: 0.64V
Short or other
values
R203
Resistor
0.5 ohm
Open or other
values
R204
Resistor
100 ohm
Open or other
values
D53
1
Diode
+ to -: 0.52V
- to +: OL
Short or explosion
R67
Resistor
10 ohm
Open or other
values
D3
Diode
+ to -: 0.4V
- to +: 0.7V
Short or explosion
D49/D57
Diode
+ to -: 0.45V
- to +: OL
Short or explosion
U7
Diode
PINI to PINO: 0.56V
PINO to PING: 0.44V
PINI to PING: 0.45V
Short or explosion
U10
Diode
PINA TO PINI: 0.45V
PINA TO PINO: 0.5V
Short or explosion
TX4
Resistor
PIN1 TO PIN3: 0.4 ohm
Short or other
values
Note1: When test the D53; please remove the R67 from the board, otherwise the test
result is not right
3.6 Check AC SPS on MPPT board
The F7 are (FUSE 3A 125V)
The NTC4 are (NTC 10 OHM 3.0A)
The REC3 are (GBU4M 4A 1000V UFST)
The D83 are (RHRP8120 8A 1200V)
The Q20 are (IRFBG30 3.1A 1000V)
The Q19 are (2SC5353BL 3A 750V)