Tråd: Husqvarna Automower 230ACX - vänster hjul fungerar ej

Some claim it to be SM6T22 in bi-directional connection. It seems to be right but this is 22V diode and power supply for the station in 26AC. That would burn the diodes and this is what just happen to me. I think they are higher voltage. I've red that shorting power cord between transformer and station may cause this diodes to burn because it's designed with voltage drop in mind. If that's true (I doubt) it looks like a really poor design. There is no electronic diagram of this board to be found. Without which it's really hard to fix this motherboard. My issue is rather unique. Something cause those two red-dotted resistors to burn after battery is connected and I've been struggling for a while to workout this layout. They seem to be a voltage dividers to state battery voltage but I'm not sure.

Voltage is just around 0.005 over the resistor

I measured on other boards and figured out it to be 21.5 or 22v bi-TVS diodes, I replaced with SMCJ22A-E3/57T, Uni-Directional TVS Diode, 1500W, do not fit but sould handle more power, but it did not work. The reason to high pulsing voltage from transformer looks to be caused by PowerSwitch "ClassicProfet" shorting to ground in pulses and resulting transformer coil to rerurn spikes of ~50volts. Replaced Profet with BTS436L2GATMA1

Hej, Jag har ett kort där 2 dioder brunnit, tittade på ett äldre kort där sitter det bara en "High temperature Transil™" ST SM6HT43A (ST EYB). Men på nyare kort sitter det 2st i serie men jag har inte lyckats identifiera dem på något av de lackade korten jag har, finns det någon som har ett kort där man kan se vad som sitter? Tack på förhand.