Hi all! My stereo system motor hums and whines loudly when the volume and bass gets turned up (at least I believe it's the motor). Any ideas of what it is or what I can do? BTW, I am very grateful for internet tech wizzes, you are the greatest! |
by Philipsmmr
September 27, 2018 |
Possibly a ground problem. Look up hum loops. |
by mikerogerswsm
September 27, 2018 |
Hi. It isn't caused by my cable TV outlet, I unplugged that, it didn't go away. It hums on FM (doesn't pick up AM) too. I read something about whether it occurs before or after the sound is amplified, but couldn't dig any info on how to find out. Thanks. |
by Philipsmmr
September 28, 2018 |
If you would care to identify the unit we can get hold of a manual and view the schematic. Some further information would help. When did it start humming? Did it come on slowly/suddenly/always? How old is the equipment? Does the innards look like new or has it been modified? Unplug before looking inside! Did the previous owner have the same problem? |
by mikerogerswsm
September 28, 2018 |
RCA RT2760. I bought it last week, and realized right away that it would hum (through the reciever) at high vplume/bass. The lady told me it was from 2000s, probably mid to late. She didn't tell me there was anything wrong with it. Thanks so much. |
by Philipsmmr
September 29, 2018 |
The manual is here: https://www.manualslib.com/manual/312998/Rca-Rt2760.html It may give some useful information on the proper hook-up. If you can get it going it certainly is a bargain. You may need to get a local expert to show you how to replace the bigger electrolytic capacitors. Good luck. mike |
by mikerogerswsm
September 29, 2018 |
Hey Mike, thanks! |
by Philipsmmr
September 29, 2018 |
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