Question about Kenwood Audio & Video Receivers
If you took all the speakers off the reciver then it still goes into protect, the reciver detects DC on the output lines. That means there is a short in the output stage of the amp. It could be an output device, or a diffencal Transistor. If you can trouble shoot solid state electronics then you should be able to find the faulty, but if not your experienced at electronic repair, am afraid it may cost more then the reciveris worth. Good Luck PS please dont forget to rate this thread
Posted on Oct 23, 2006
SOURCE: denon avr 5800
I can help you solve this problem. However you must describe to me which fuse you have replaced. Is it the fuse on the power line or is it a fuse in the speaker line (which I highly doubt). usually this type of amplifier uses two technologies. One is transistors the second is integrated chips. This is in regard to the output stages. I assumed you speaker cables shorted each other while the volume was set at a high level with music playing. Anyway if you are willing I am able to help.
Posted on Sep 01, 2007
SOURCE: I have a kenwood KA
Most likely the output transistors are shorted. This causes the output stage to draw too much current and blows the fuses. Expect a parts cost around $20-$40. Add in the local labor rate for the total repair cost.
Posted on Apr 17, 2008
You are literally playing with fire. Obviously the unit is in dire need of service! Please, take unit in for check out by a pro/tech
Posted on Apr 27, 2008
I am guessing that the ceramic resistor is close to the output transistors. I would also guess that one or more of the output transistors has shorted. This causes a high current draw that is blowing the fuse. You could also have a power supply problem. The ceramic resistor is a .22ohm dual emitter resistor that is used in the output stage. The transistors located close by are probably shorted and should be replaced. Start there and let us know what happens once the transistors and the resistor are changed.
Posted on Oct 10, 2008
It will need 2 output transistor replaced. They are attached to the lagre heat sink in the middle of the receiver. Printed on them will be a letter and numbers like A1302 and C3281 the part number will be 2SA1302 and 2S3281 (these are examples) you can find parts online at many sources (I like MCM electronics). This is not a difficult receiver to work on, a bottom panel is removable. The bad pair will be shorted between at least two off the legs.
If you take it in to be repaired $70-$90 would be a fair price.
Posted on Nov 29, 2009
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