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Sansui 5000A Distorted Fuzzy Sound in Phono Mode

G

Gjcamargo

New Member
Hi Guys, I'm really new to this Forum but it looks pretty cool what I have read! ok so here it go my issue:

I just bought a Sansui 5000A in very good condition and when I completed the whole set up into my speakers, I start to play some music with my turntable and from both speakers I can hear a lot of distortion and a fuzzy sound, you can hear the music but nothing satisfying to the ears, I played with the volume knob and nothing, the same in low volume or high.. so I tried connected the audio cables to the Aux Input and Woala! IT WORKS like a charm! clear and warm sounds how is supposed to be uff I love it!.

I don't know much about these kind of things, I checked the fuses they were fine however I changed them and still the same, I don't believe they were the issue as I was able to use it in the "Aux Input" without any issues, I tried the Tape Input and the same thing as Phono, distorted sound, I have my turntable and receiver connected trough an pp400 phono preamp ( Picture below)..

So I don't know exactly what's going on with it, another thing is that I cannot get anything from FM just AM but that's not really a big concern for me I don't listen too much radio but I will appreciate if you can help me with that too..

I have attached a video link where you guys can see and hear the problem that I'm dealing with, I hope you guys can help me!! thanks.


https://i.imgur.com/pDvMFzu.jpg
 
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Hi and welcome to AK and the Sansui forum!

If you are using a separate Phono Preamp then the output of this must be connected to the Aux input of the receiver. Connecting the preamp to the Phono input of the receiver will overload the input causing the distortion that you are experiencing. Try connecting the output of the turntable directly to the phono input of the receiver. So in short - connect turntable direct to the phono inputs, or connect turntable to the separate phono preamp, and the output of the phono preamp to the Aux input of the receiver, either should work.

Re the FM reception, just about all vintage receivers have an inbuilt AM antenna, but require the connection of an external FM antenna. You might get some FM reception without an external FM antenna, but this depends somewhat on the strength of the FM signals in your area. You can try connecting a short length of wire - say around 6ft to the FM antenna input and see if this gives some signal reception. Simple FM antennas are available in various formats.

Hope this helps

Cheers
John
 
Looks clean as a whistle. Do you know which amp boards are in your 5000a? Someone at least went over the outside really well, wonder how much tlc was given to the inside.
 
skippy124 said:
Hi and welcome to AK and the Sansui forum!

If you are using a separate Phono Preamp then the output of this must be connected to the Aux input of the receiver. Connecting the preamp to the Phono input of the receiver will overload the input causing the distortion that you are experiencing. Try connecting the output of the turntable directly to the phono input of the receiver. So in short - connect turntable direct to the phono inputs, or connect turntable to the separate phono preamp, and the output of the phono preamp to the Aux input of the receiver, either should work.

Re the FM reception, just about all vintage receivers have an inbuilt AM antenna, but require the connection of an external FM antenna. You might get some FM reception without an external FM antenna, but this depends somewhat on the strength of the FM signals in your area. You can try connecting a short length of wire - say around 6ft to the FM antenna input and see if this gives some signal reception. Simple FM antennas are available in various formats.

Hope this helps

Cheers
John
Click to expand...

Good morning!, ok now I felt like a stupid haha I've never thought of that.. I did what you said and PROBLEM SOLVED! hahaha works perfect now, no distortion and anything more than a perfect sound!
I don't know why I used that mini preamp in the first place but I just put it back in my closet.

About the FM reception I will try that later when I found a good wire around my stuffs thanks also for that! really appreciate it.
 
Guido57 said:
Looks clean as a whistle. Do you know which amp boards are in your 5000a? Someone at least went over the outside really well, wonder how much tlc was given to the inside.
Click to expand...

thanks sir, I bought it on eBay for $275 with shipping included I didn't think it twice the moment I saw it and no regrets, it looks like it was storage for years as is in mint condition, the inside it's a little dirty but I'll clean it later...

overall it sounds spectacular, I just used with my headphones and you can hear every detail and that nice and pleasant warm and clear sound I'm really enjoying it. about the card it has the updated one the F-6013 board, that was the first thing I checked when I was about to buy it.

I know I need some good and decent speakers to match the look and I've been looking on eBay a pair of Rectilinear III Highboys close to my house that I think it will do a good match for the receiver.
 
skippy124 said:
Hi and welcome to AK and the Sansui forum!

If you are using a separate Phono Preamp then the output of this must be connected to the Aux input of the receiver. Connecting the preamp to the Phono input of the receiver will overload the input causing the distortion that you are experiencing. Try connecting the output of the turntable directly to the phono input of the receiver. So in short - connect turntable direct to the phono inputs, or connect turntable to the separate phono preamp, and the output of the phono preamp to the Aux input of the receiver, either should work.

Re the FM reception, just about all vintage receivers have an inbuilt AM antenna, but require the connection of an external FM antenna. You might get some FM reception without an external FM antenna, but this depends somewhat on the strength of the FM signals in your area. You can try connecting a short length of wire - say around 6ft to the FM antenna input and see if this gives some signal reception. Simple FM antennas are available in various formats.

Hope this helps

Cheers
John
Click to expand...
I am so sorry to have revived a zombie thread, but I have to THANK YOU!!!!!!!!!!!!!!!

Finally got my components up and running...I went to try the turntable and was met with ugly hum and distortion. So I started the troubleshooting, and long story short, I never dreamed plugging into the phono from the preamp would overwhelm its ability to properly handle the signal.

Moved it to Tape and I'm test playing "Days Of Future Passed" by the Moody Blues and it sounds great! Your advice to do this saved me a mountain of frustration.

Thank you again!!
 
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