Sir Hallnbass . . . . .
Testing . . .Testing . . 1 2 3 . . . .Testing . . . .
Why fo' you do be makin' it mo' harder fo' us . . . by not initially be tellin' us that it be the power supply 'potion fo' a Viz-ee-ooo sound bar system. (WHEEEEEEEW . . . thats being my Eeeeee-bonics practice session for the month . . . 'lest I be loosin' my prooooo-ficiency)
If you additionally had supplied an all encompassing closeup of the foil side of the bord, for evaluating the developed wiring routing, I suspect it might have revealed this path shown below . . . .
With the
OPTION of an across the line varistor, having
NOT not being taken / installed down in the empty
MOV-1 area, seems like the carbonized part would have been a series installed, in line NTC type of surgistor / thermistor.
Also check to see if the rectangular black cased F1 line fuse is assuredly being totally blown open circuit now.
The onliest way I can see the degree of damage inflicted was the taking on of a 4 billion volt lightning strike to the power line service to the house, towards the house side.
OR . . . . if the black cased 4 full wave bridge rectifier diodes are all dead shorted , however, I can't see the damage inflicted upon the varistor components blackened area, before the MINIMUM time required for the 3.15 ampere F1 to have open circuited itself.
OR . . . . YELLOW block safety capacitor is being dead shorted.
Give us a foil path closeup and hopefully, then all will be answered . . . about the unit being a series inserted thermistor aspect.
ILLUSTRATIONAL BLOWUP:
73's de Edd
.....