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Old 20th January 2013, 12:42 AM   #1
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Default Clarion DPX1000.2

Amp powers up and idles perfectly..

I have both + - 15 volts on the op-amps..

Amp produces both + - 47 volts of rail..


Amp has no output..


Any ideas??
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Old 20th January 2013, 02:17 AM   #2
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Does it use a relay to engage audio to the output terminals?

Can you post up a pic of the board?
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Old 20th January 2013, 02:21 AM   #3
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No relay in this amp But it uses the Tripath board..

I will try to get a pic up in a lil bit
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Old 20th January 2013, 02:23 AM   #4
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R46 commonly opened or came unsoldered.
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Old 20th January 2013, 02:33 AM   #5
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R46 Measures 3.4 ohms out of the board..

I cleaned both sets of pads and soldered the resistor back in from the top and bottom sides..

Still no output..
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Old 20th January 2013, 02:46 AM   #6
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It's possible that the module has failed.

I think that the resistor is supposed to be a 1.1 ohm. I don't know if the difference in resistance will prevent it from producing audio.
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Old 20th January 2013, 02:49 AM   #7
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I i measure directly across the resistor i get 0 volts...

If i place the black probe on the ground termianl and measure 1 side at a time i get -47.1 volts..

I also get -47.1 volts on Pin 19 of the Tripath chip..

Is that voltge correct or should it be near 12 volts?
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Old 20th January 2013, 02:55 AM   #8
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I think it should be 12v above the negative rail.
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Old 20th January 2013, 02:59 AM   #9
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Guess i will trace the circuit back and see what i can find

If all tests good and the Chip is defective the amp is unrepaiable ?
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Old 20th January 2013, 03:03 AM   #10
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The ICs have been difficult to find in the past but I haven't looked for any in a few years.
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