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-   -   Clarion DPX1000.2 (http://www.diyaudio.com/forums/car-audio/228219-clarion-dpx1000-2-a.html)

S Merlington 20th January 2013 12:42 AM

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??

seankane 20th January 2013 02:17 AM

Does it use a relay to engage audio to the output terminals?

Can you post up a pic of the board?

S Merlington 20th January 2013 02:21 AM

No relay in this amp But it uses the Tripath board..

I will try to get a pic up in a lil bit

Perry Babin 20th January 2013 02:23 AM

R46 commonly opened or came unsoldered.

S Merlington 20th January 2013 02:33 AM

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..

Perry Babin 20th January 2013 02:46 AM

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.

S Merlington 20th January 2013 02:49 AM

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?

Perry Babin 20th January 2013 02:55 AM

I think it should be 12v above the negative rail.

S Merlington 20th January 2013 02:59 AM

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 ?

Perry Babin 20th January 2013 03:03 AM

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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