| ipod |
 Posted: Thu Jan 04, 2007 12:20 pm Post subject: Re: HELP stero repair |
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| tim in pa wrote: |
my first post, thanks for reading. i am repairing my bosses (i know!)vintage receiver, pioneer sx950. while tracing some crackling, i had my o-scope (x1) probe on the pre-amp output (amp input) comparing the left and right signals. when suddenly, the audio (both l & r) sounds like it is now coming out of a tin can. i do have the sams schematics for this unit. the only thing i can think of is that the scope probe loaded down the signal (did it load the input side of the amp or output side of the preamp). the problem i have here is that there are signals present at all stages, i just don't know if they are correct. your help here will be greatly appreciated  |
IF it`s still working(the white smoke didn`t leave amp) try to resolder all components and conections.Also I recomend that you replace all electrolitic capacitors that solves 90% of all problems with vintage amps. |
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| tim in pa |
| Posted: Fri Sep 01, 2006 11:03 pm Post subject: HELP stero repair |
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| my first post, thanks for reading. i am repairing my bosses (i know!)vintage receiver, pioneer sx950. while tracing some crackling, i had my o-scope (x1) probe on the pre-amp output (amp input) comparing the left and right signals. when suddenly, the audio (both l & r) sounds like it is now coming out of a tin can. i do have the sams schematics for this unit. the only thing i can think of is that the scope probe loaded down the signal (did it load the input side of the amp or output side of the preamp). the problem i have here is that there are signals present at all stages, i just don't know if they are correct. your help here will be greatly appreciated |
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