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Old 20th January 2014, 05:54 AM   #1
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Default Orion 2500D - Need R Value help

Trying to troubleshoot this amp and I found a resistor on the PWM driver board that appeared to be burnt. I cannot read the value of it at all. It is R165. It reads 2.2K ohms on the meter. I cannot seem to locate another complimentary section that uses the same resistor to check the value. This resistor is directly connected to Pin 3 (Input 1) of the LM361.

Any idea why this would be damaged? Seems like an odd piece to be damaged. Or maybe it is the correct value and the value is just not readable.
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Old 20th January 2014, 06:24 AM   #2
ishiru is offline ishiru  Indonesia
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it's empty

did you removed that R already?
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Old 20th January 2014, 06:29 AM   #3
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I did. Perry Babin has confirmed it is a 2.2K for me. Guess I have some more troubleshooting to do
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Old 20th January 2014, 07:01 AM   #4
ishiru is offline ishiru  Indonesia
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you might want to check the "DY349, resistors and caps in series, and the scratched IC for any shortage..
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