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Old 25th October 2011, 01:55 AM   #1
diyAudio Member
Join Date: Jun 2010
Default kenwood kac9104 cutting out

This amp plays good audio at low volume.when i turn up thegain and bass bost the audio cuts in and out.It act like the amp is losing power.It has 32.1mv on the speaker terminals with no signal.I try two other speakers but no change.any idea what could be the problem?
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Old 25th October 2011, 02:27 AM   #2
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Join Date: Nov 2003
Location: Louisiana
Is the voltage (measured directly) across the B+ and ground terminals dropping?

If so, how far does the voltage drop?
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Old 1st November 2011, 12:41 AM   #3
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Join Date: Jun 2010
The voltage was drouping to 10v .I solder the output and power supply section and it seem to be ok now.
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Old 1st November 2011, 09:14 AM   #4
diyAudio Member
Join Date: Nov 2003
Location: Louisiana
Are any of the output transistors leaking or shorted?
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