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#1
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old tech reciever
To one and all:
I have a Sansui 9090DB reciever, circa 1975, that is a bit hissy. My command of electronics a little on the spotty side, but I have heard as the electrolytic capacitors age, they can introduce noise in the form of hiss. If this is true, would replcing all of the electrolytic caps reduce this noise? Any help advice/information would be appreciated........... Are there any websites that sell copies of service manuals on these old critters out there? Thanks in advance Foggie |
#2
Posted to rec.audio.tech
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old tech reciever
foggie wrote:
To one and all: I have a Sansui 9090DB reciever, circa 1975, that is a bit hissy. My command of electronics a little on the spotty side, but I have heard as the electrolytic capacitors age, they can introduce noise in the form of hiss. If this is true, would replcing all of the electrolytic caps reduce this noise? Any help advice/information would be appreciated........... Are there any websites that sell copies of service manuals on these old critters out there? Thanks in advance Foggie Replacing all the caps would be a large undertaking, and there's other things that can cause hiss. A bad transistor, for example, or a bad resistor. Any of these, including a signal stage capacitor, would cause hiss only on one channel. Otherwise maybe a regulated power supply problem, though this would generally be manifested as a "hum" problem. So, is the hiss only on one channel? Mark Z. |
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