equipment fault

[johnmf]

opinions please guys.

when investigating blown fuses to a piece of equipment i found the L1 & L2 on the pcb( its a 3 phase board) had tracked across, hence the blown fuses.

drilled the tracking out but still get 2.3K ohm resistance between L1 & L2 when tested with mutimeter. the L1 & L2 connect to a power supply transformer ( for rest of board).

think this value of resistance is due to the transformer obviusly but not sure if this is the expected value? any insight?


want to be sure before reconnecting the supply.

 

[Job_n_knock]

Disconnect the transformer and test the winding resistance to see if you get 2.3Kohm. In fact isolate the board completely to prove the fact. If different, then you need to investigate further.

 

[johnmf]

the transformer cant really be unsoldered from the board to be honest, thats the problem ive got.

 

[Job_n_knock]

Why not? You do need to know !