M201 GTM32 old version Fans not work at all.

[arakna]

Sometimes during printing M201 all fans went silend do not spin at all.
In Extruder fan have 1.56v dc but not spin all 4 fans are still.
Is it regulator or fuse or ???? and where can I find that in old version of GTM32.
There isn't any schematic for that PCB or are there.

BR
A

[arakna]

Found!! There is 12volts regulator on otherside of board IC4. That was blow away.
I put TO-220 case 7812 replace Now there is power to the fan's.

BR
A