Luxman R115/R117 Transitor swap question - diyAudio
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Old 27th December 2012, 12:48 PM   #1
retrex is offline retrex  United States
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Default Luxman R115/R117 Transitor swap question

I have a Luxman R115 that I am working on where I have a bad 2SC2705 transitor in the R amp board. There are other issues in the pre section which need to be addressed at a later time but I want to get the amp section working to determine cost effectiveness of doing so. I have spare 2SC3467 transistors from an R117 repair. The amp board circuits between the R117 and R115 are almost identical, including the parts themselves, and the only difference I see is the R117 transistor is built to handle the higher rail voltage. I am not all that familiar with swapping transitors so I was hoping someone with more knowledge in this matter would give an opinion as to whether it would be ok to do this swap. Thanks ahead for any responses.
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Old 27th December 2012, 05:05 PM   #2
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2sc3467 is a perfect replacement, and in some ways better, go ahead.
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Old 28th December 2012, 11:38 AM   #3
retrex is offline retrex  United States
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Quote:
Originally Posted by homemodder View Post
2sc3467 is a perfect replacement, and in some ways better, go ahead.
Thanks I'll give it a go. I kinda thought it might be but I wanted someone with more knowledge to verify. If it works I will have at least both R and L channels of the amp section up and running giving me the CD input as a functioning source.
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Old 29th December 2012, 12:21 PM   #4
retrex is offline retrex  United States
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That did the trick. The preamp problem looks like IC issue with TC9163N switching device. Luckily I have a spare of this part as well. Thanks again.
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