Genesis buzz

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fitterhans
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Genesis buzz

Post by fitterhans »

I was looking for some technical info on Genesis repair. The console I picked up shows some carts fine but the sound is very low with a loud buzzing noise at all times. It also seems to read some carts fine and hands after the title screen on others (which may be the carts themselves). Thanks!
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ott0bot
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Post by ott0bot »

Are you using an rf output or av cables?

there was another post a while back about this. see if you an find it in the tech help section or the sega section. I was thinking it may have been due to faulty cables or some bad capacitors. maybe they will repost if they got it corrected.
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fitterhans
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Post by fitterhans »

I am using rf cables. I used the same rf on a working snes, so I would imagine this should be the same. I will try and dig up that other post.
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SnowKitty
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Re: Genesis buzz

Post by SnowKitty »

fitterhans wrote:I was looking for some technical info on Genesis repair. The console I picked up shows some carts fine but the sound is very low with a loud buzzing noise at all times. It also seems to read some carts fine and hands after the title screen on others (which may be the carts themselves). Thanks!
this is almost definitely a problem with the AC adapter. try another one on it and be sure its of the correct voltage and amps. when i have this happen its usually a bad or wrong power adapter
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fox099
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Post by fox099 »

alot of time it really depends where the rf adapter is placed and where the genesis is located. try to move it off the floor onto a table and make sure that the rf adapter is not in contact with any form of metal. otherwise you will pick up ambient noise.
Consoles Owned: Nintendo SNES, Nintendo GameBoy Color, Nintendo GBA, Sony PSX, PS2, PS3, Sega Master, Microsoft XBox
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ott0bot
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Re: Genesis buzz

Post by ott0bot »

SnowKitty wrote:
fitterhans wrote:I was looking for some technical info on Genesis repair. The console I picked up shows some carts fine but the sound is very low with a loud buzzing noise at all times. It also seems to read some carts fine and hands after the title screen on others (which may be the carts themselves). Thanks!
this is almost definitely a problem with the AC adapter. try another one on it and be sure its of the correct voltage and amps. when i have this happen its usually a bad or wrong power adapter
I've noticed the ac adapter itself making a high pitched noise before too, but it didn't make a noise through my speakers. And if the RF works with the SNES it should be fine, but try moving it around like fox099 suggested.
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marurun
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Post by marurun »

There may be bad capacitors in the sound amplification chain. How confident are you in your soldering skills?
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fox099
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Post by fox099 »

in addition to my prior comments, ill build on ott0bot's comments a bit. if the adapter is making a high pitch noise, try a different power socket. If you are using a power strip you may be getting alot of noise on your circuit. you can solve this by using a power conditioner/battery backup. in addition to giving you a steady electrical output, it also improves performance of your television! i have my hdtv hooked up through a conditioner and i noticed considerable improvement
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Post by D.D.D. »

fox099 wrote:in addition to my prior comments, ill build on ott0bot's comments a bit. if the adapter is making a high pitch noise, try a different power socket. If you are using a power strip you may be getting alot of noise on your circuit. you can solve this by using a power conditioner/battery backup. in addition to giving you a steady electrical output, it also improves performance of your television! i have my hdtv hooked up through a conditioner and i noticed considerable improvement
He speaks the truth. What fox099 is saying is 100% dead-on in my experience with speakers, or any electrical equipment that experienced sound buzz. While a conditioner (I forget the technical term for it) is great, sometimes just a good quality power strip will make a big difference so try that first since they're cheaper. ;) Plus, get some RCA cables for the Genesis... Picture quality goes up too~
Oh and if you can, only use one of the two outlets on the wall jack. I've found (at least in my crappy old apartment) that if I used a good quality power strip and only used one of the two outlets, there was less buzz as well.
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Post by lordofduct »

have you tried sticking headphones in the headphone jack and seeing if that sound is buzzing as well? If it isn't I bet it's a bad ground or capacitor during the RF composite modulation.
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