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Audiopipe AP 3000 1D
Audiopipe AP 3000 1D
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Old 16th April 2019, 05:12 PM   #51
Perry Babin is offline Perry Babin  United States
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Is the optocoupler the only thing that failed?
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Old 16th April 2019, 05:15 PM   #52
caraudioguy2100 is offline caraudioguy2100
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Yes
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Old 16th April 2019, 05:19 PM   #53
Perry Babin is offline Perry Babin  United States
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Which side is failing (input or output)?
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Old 16th April 2019, 05:23 PM   #54
caraudioguy2100 is offline caraudioguy2100
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Output side
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Old 16th April 2019, 05:35 PM   #55
Perry Babin is offline Perry Babin  United States
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What's the resistance between pins 6 and 8?
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Old 16th April 2019, 06:26 PM   #56
caraudioguy2100 is offline caraudioguy2100
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0.678k ohms

Must have confused the sides I believe the input side is blown
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Old 16th April 2019, 06:27 PM   #57
Perry Babin is offline Perry Babin  United States
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Location: Louisiana
How is it failing? Is the internal LED opening?
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Old 16th April 2019, 06:43 PM   #58
caraudioguy2100 is offline caraudioguy2100
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I had no drive signal replaced the optocoupler and had good drive signal .

It blew again and have no drive signal again and 70 volts across the speaker terminals
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Old 16th April 2019, 06:57 PM   #59
Perry Babin is offline Perry Babin  United States
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What was the drive signal you were seeing? Was it the audio frequency that you drove into the amp or was it a high frequency (80kHz) signal?
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Old 16th April 2019, 07:36 PM   #60
caraudioguy2100 is offline caraudioguy2100
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The high frequency 80k hertz
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