Speaker makes a Dug Dug sound ........ POLYTRON Active Speaker Repair
In this video, I repaired a Polytron active speaker with damage when the speaker was turned on, it made a Dug Dug sound..... and if the speaker was removed from the transformer, it made a tick tick sound........ if the damage is like this, it usually occurs because the PSU voltage is short-circuited. Usually, short-circuit voltage often occurs because the final transistor is burned/damaged. The location of the final transistor is attached to a fairly large cooler. Usually the type of transistor used is the TIP41/42 type.
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