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stetsom 14k5
stetsom 14k5
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Old 9th August 2011, 11:58 PM   #1
megael9 is offline megael9
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Join Date: Oct 2009
stetsom 14k5
Default stetsom 14k5

Hi
I`m working on a stetsom 14k5.
so far I have replaced 5 output
mosfet, and the 5 gate resistors.
the amp powers up and has audio,
but there`s -20 volts at the output.
any sugestion?
Thanks in advance.
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Old 12th August 2011, 12:56 AM   #2
megael9 is offline megael9
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Join Date: Oct 2009
stetsom 14k5
HI:
againg having problems with this
unit, after replacing one of the
driver board with an other use
one, know I have -02 volts for
about 3 seconds, then it goes
to -2.7 volts, at the speakers
output. any suggestions?
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fluke 50 mhz scope,35 amp power supply,0.5-12v adj power supply, fluke 179,hot air desolder gun, merit multyfuntion signal tracer/generator.
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Old 12th August 2011, 01:40 AM   #3
fcruz is offline fcruz  Brazil
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you've changed the 4011 check i, c u2 adjust the trimpot to off set
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Old 12th August 2011, 01:47 AM   #4
megael9 is offline megael9
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Join Date: Oct 2009
stetsom 14k5
Yes: I replaced the driver board, and ic 4011.
So I need to adjust the tripot?
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Old 12th August 2011, 02:19 AM   #5
fcruz is offline fcruz  Brazil
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yes
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