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Old 15th March 2012, 08:37 PM   #1
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Default RF BD15001

hi all

This amp came in with half of the output fets burn.I remove them and power the amp with a limiter.The led on the red and black wire is on,is it for protect?

On the center leg of the rectifiers i get about 38.04 v - and +. Shouldn't it be more that that?

On the twisted red and black wire i get 68.45v
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Old 15th March 2012, 09:05 PM   #2
DREW028 is offline DREW028  United States
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The LED next to the RCA inputs is the protection LED. Power LED is under the RF logon on top of the amp.
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Old 15th March 2012, 09:21 PM   #3
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ok well this amp is not in protect,but i think the rail voltage is to low
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Old 15th March 2012, 11:51 PM   #4
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You should read approximately 100v DC across the red and black wires.

If you're using a limiter and the input voltage is significantly lower than normal, that could account for the low rail voltage.
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Old 19th March 2012, 02:13 PM   #5
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The output FETs irf 3415 and irf6215 can i used irf3710z in place of one of them
for test?
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Old 19th March 2012, 02:37 PM   #6
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No.
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Old 21st March 2012, 11:15 AM   #7
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Check u21, that fails quite often.

rorrim eht ni kool
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