Integrated Amplifier
Where can I get the service manual for Kenwood Integrated Amplifier KA-50?
I really need diagram of the power supply diagram for it. I need to know how many volts it works with. I need to replace the transformer, but I do not know what to buy.
Are you sure the transformer is dead? Is this the only problem? If there was a surge that you may have other problems. Check the diodes using a multimeter should drive in one direction. If they failed, you at least have to and make this repair, but you could also have far more problems caused by the surge. If the diodes seem fine, if you have voltage on the transformer primary side, and you have no voltage on the secondary, then you might get away with simply replacing the transformer. I highly recommend Kenwood do this, or supplier as the Pacific coast Parties. They should be able to send the transformer designed for your amplifier. If not ... I guess that was the KA50 outputs (transistors rather than a chip). I expect the secondary voltage in this case about 50 to 70 VAC.