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Question
I have a kenwood stereo reciever KR-596 and a pioneer sx-1600 both or them blow fuses the instant you hit the power button.
Both are quite old models. At their age it could be any of a number of ailments.
Here are some things that are known to cause the fuse to blow.
ONE: Shorted voice coil in one of the speakers placing a dead short on the output. To check it just remove all the speaker connections at the back of the receiver.
TWO: Shorted output transistors placing dead short on the power supplies. Repair involves replacing the output transistors and regreasing them good for proper heat transfer.
THREE: Electrolytic capacitors in the power supply are known to fail as they age and become - yup, you guessed it - a short circuit to the power system.
If you have a vom and some testing skills you can check it out and find which of the three - or four - problem areas are most likely.
If you need further help give a follow up holler.
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Answers by Expert:
Cleggsan
Expertise
Audio Design Engineer; systems, loudspeakers, cd/dvd players, etc. I am knowledgeable in all high end audio equipment and installations. MAKE SURE YOU GIVE A MAKE AND MODEL NUMBER AND CAR IF IT IS AN AUTO QUESTION. Note: I am getting some who ask good questions that take a lot of time to research but then the questioner fails to read the answer. Please don't ask questions unless you are seriously looking for an answer. If you find an answer to your question otherwise then let me know with your reply. Thank you.
Experience
Have been associated with audio design, standards, testing and component systems for over 40 years.
Organizations
Life Fellow Member of Audio Engineering Society
Life Senior Member of Institute of Electronic and Electrical Engineers
Publications
Review technical manuscripts for IEEE Spectrum
Write occasionally for high-end audio publications
Education/Credentials
BSEE/MSCS/MBA
Past/Present Clients
Past Employee/advisor to several well known audio products manufacturers
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