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Old 15th July 2012, 05:22 AM   #1
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Default Sony XM-GTX6040

Amp will not power up its dead I have 0 volts on all pins of the 594 any suggestions?
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Old 15th July 2012, 11:09 PM   #2
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Follow the trace back from pin 12. IT likely goes to a Q901. Post the voltage on all 3 legs of Q901 (or whatever transistor it goes to).
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Old 15th July 2012, 11:55 PM   #3
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It goes to Q902

I have 0 volts on all 3 legs
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Old 16th July 2012, 12:35 AM   #4
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Are you sure that the fuse isn't blown?
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Old 16th July 2012, 12:38 AM   #5
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Both fuses looked fine but i replaced them and the amp powers up perfectly Thanks for the info
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Old 10th August 2012, 07:20 PM   #6
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Amp worked for about a week and came back to me and it wont power up again..

I replaced both fuse's with new and the amp still wont power up..

I have 0 0.00 volts on all 3 legs of Q902

I also have 00.00 volts on all pins of the 594
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Old 10th August 2012, 09:00 PM   #7
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Did you pull the board to look for bad solder connections or burned traces?
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Old 10th August 2012, 09:32 PM   #8
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Yes do see any.. I will heat up the solder and see if that does anything
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