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Kenwood Model#ka-893 radio blowed

Kenwood Model#ka-893 radio blowed a fuse changed fuse now lights come on but no music well play, Jodey

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  • 2 Answers

SOURCE: Kenwood 7202 Amp that is blowing fuses

i had the same problem ! that amp is underated!
it should have 2 / 40 amp fuses i had to direct wire the fuse!
not a smart thing to do but it never shut off again and i havent
had any problems at all i put a 60 amp fuse at battery!
melted 1 wire that was two small ! its banging 2 / 12inch solo barics and sounds great hits deep. again not smart BUT it works.

Posted on Dec 01, 2007

  • 4234 Answers

SOURCE: Kenwood KR-A4070 blowing 5a 125v fuses

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.

Dan

Posted on Oct 10, 2008

nuwan chinth
  • 111 Answers

SOURCE: Kenwood KA-880D Amp keeps blowing the 6v 250w fuse

please check the VDR in primary supply side.its directly connect to bouth N&Live wire connections of supply.
nuwan.

Posted on Jan 12, 2009

dunnbiker
  • 8546 Answers

SOURCE: when i power up my kenwood ka 893

Can you elaborate on this, "I'm wondering if it has to do with a speaker not being in correct post./negitave place"? --- What did you see or do that makes you wonder?

You didn't answer if the fuses were blown or if you just changed them for lack of anything better to try, like checking the manual, which says to suspect shorted speaker wires if "- - - - - - -" is blinking on the display.

Disconnect the speaker wires and see if that helps the receiver boot up, then diagnose the short.

If it doesn't come back to life I'd suspect it got fried by a power surge or static. I hope not.

Posted on Apr 02, 2010

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Can you elaborate on this, "I'm wondering if it has to do with a speaker not being in correct post./negitave place"? --- What did you see or do that makes you wonder?

You didn't answer if the fuses were blown or if you just changed them for lack of anything better to try, like checking the manual, which says to suspect shorted speaker wires if "- - - - - - -" is blinking on the display.

Disconnect the speaker wires and see if that helps the receiver boot up, then diagnose the short.

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1 Answer

Kenwood KR-A4070 blowing 5a 125v fuses


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.

Dan

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I have a kenwood KA 1060 amp, and recently changed the fuse on the first PCB board where the mains power lead connects to the unit as the fuse had blown. After doing so and testing it again the fuse has...


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.
Dan

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