an ohm meter that the primary and secondary windings have very little resistance on the main trasformer,then check voltage in trasformer and out from transformer...BIGRED more...
marantz amplifier pm-34 i have an amp. the transfomer has gone and it a split transformer i need silmer transformer as this 1 was like it when i got from ebay but did not state what the problem was. thanks more...
Hi: If the Amp has an audio output transformer, check for bad solder connections to the pc board, This are the wires from the transformer to the PC board. Another place to look more...