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damage to the polytron tv in the AV video position does not enter this often happens, in general this kind of damage is caused by a short voltage spark. This is mostly caused by short current jumps from lightning,
to overcome something similar like this, examine the PCB path from the video input to the CROMA IC, sometimes there are components that break due to the shock voltage from lightning.
#tutorial#reparansiTVpolytron#seputarserviceelektronika
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