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RJohns777 7th December 2012 08:28 PM

Kenwood KAC-8105D
Hi all,
Does anyone have a service manual you would be willing to share for a Kenwood KAC-8105D? I have one that has something pulling the turn-on voltage down. The turn-on supply goes to several areas of the board and it has a lot of small surface mount components. The 494 chip is not pulling it down.

Perry Babin 8th December 2012 01:44 AM

I don't have that one but I have the 8104. It may be close enough to be of some help.

Have you replace the transistor that passes power to the 494? It could be weak.

RJohns777 8th December 2012 02:13 PM

Thanks Perry,
I lifted a jumper to the 494 and the voltage didn't come back. I lifted a jumper to a different area on the board and the voltage did come back. The area is around the leds. The voltage is dropping to around 2.8 volts at the switching transistor. Weird, you would think something would be getting hot with that much drop.

I have the manual for the 8104 but they aren't close.

Thanks again.

RJohns777 9th December 2012 03:23 AM

Perry I'm sorry! I didn't have the manual for the 8104. I had the manual for the 8401. I will give the 8104 a try if you don't mind sharing it with me.

Thank you

Perry Babin 9th December 2012 03:30 AM

Email me.

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