Overheating, which causes the internal wiring of the transformer to run at elevated temperatures, is a common cause of transformer failure. This often causes a physical deforming of the transformer or the area surrounding it. If the transformer exterior is bulged or shows what appear to be burn marks, don't test the transformer. Instead, replace it. The wiring should be clearly labeled on the transformer. However, it is always best to obtain a schematic of the circuit containing the transformer to determine how it is connected. The schematic for the circuit will be available in the product information or on the website of the circuit manufacturer. The first electrical circuit will be connected to the primary of the transformer. This is its electrical input. The second circuit receiving power from the transformer is connected to the transformer secondary, or the output.  The voltage being supplied to the primary should be labeled both on the transformer and the schematic. The voltage being generated by the secondary should be labeled in the same fashion as the primary. It is common to attach capacitors and diodes to the transformer secondary to convert the AC power from the output to DC power. This information will not be available on the transformer label. Generally, you can find the transformer conversion and output filtering information on the schematic.

How would you rephrase that briefly using Indonesian?
Periksa tampilan transformator. Tentukan sistem kabel transformator. Identifikasi masukan dan keluaran transformator. Tentukan penyaringan keluaran.