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 Post subject: sherwood s5500 balance control
PostPosted: Feb Thu 07, 2019 10:09 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 985
Location: Germantown, IL USA 62245
Hello,
This amp is working ok except the left channel goes on and off as the balance control is rotated. The control looks like a real dog to replace and is even hard to see, so I'd like to do some more testing but I can't find it on the schematic from this site.

http://akdatabase.com/AKview/albums/use ... Manual.PDF

There's 2 controls labeled "Level" on the schematic that I can't find on the unit. Anyone familiar with this amp?

Tom Ackerman


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 Post subject: Re: sherwood s5500 balance control
PostPosted: Feb Thu 07, 2019 10:23 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 18304
Location: Albuquerque, NM 87123
I don't think you have a balance control. You have two level (volume) controls. Just clean them.


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 Post subject: Re: sherwood s5500 balance control
PostPosted: Feb Thu 07, 2019 10:48 pm 
Member

Joined: Jan Thu 01, 1970 1:00 am
Posts: 985
Location: Germantown, IL USA 62245
It has a balance control and a loudness control. The balance is a single control and the loudness is a dual unit. They've been cleaned and deoxit with no help.

Tom


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 Post subject: Re: sherwood s5500 balance control
PostPosted: Feb Thu 07, 2019 11:24 pm 
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Joined: Aug Fri 12, 2016 1:49 am
Posts: 707
Location: Houston, TX
Take at look at R12/R112, the 500k pot before the bass & treble controls. Pretty sure that "level" control is the balance/gain knob/lever.


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 Post subject: Re: sherwood s5500 balance control
PostPosted: Feb Thu 07, 2019 11:39 pm 
Member

Joined: Jan Thu 01, 1970 1:00 am
Posts: 985
Location: Germantown, IL USA 62245
I looked at that, but the balance control is a single unit. It measures about 87K but that's in the circuit. That diagram is supposed to be for the S5500ll which is what this is.

Tom


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 Post subject: Re: sherwood s5500 balance control
PostPosted: Feb Fri 08, 2019 3:31 am 
Member

Joined: Jan Thu 01, 1970 1:00 am
Posts: 985
Location: Germantown, IL USA 62245
On further examination I don't think this schematic is for this amp. It has the right model number but there are some other differences in the first few stages, This one also has a phono gain control not shown on the diagram. I'll look for a different schematic.

Tom


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 Post subject: Re: sherwood s5500 balance control
PostPosted: Feb Fri 08, 2019 3:46 am 
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Joined: Feb Wed 04, 2015 12:26 am
Posts: 811
I have two of these amplifiers, both have have the same type control. Johnnysan is right about the balance/gain control. The knob controls one channel, the lever controls the second channel. The master volume controls all channels.

There is very little difference between the amp with the phono gain control and the one without (again I have both). The only real differences will be in the final output stage.


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 Post subject: Re: sherwood s5500 balance control
PostPosted: Feb Fri 08, 2019 4:51 pm 
Member

Joined: Jan Thu 01, 1970 1:00 am
Posts: 985
Location: Germantown, IL USA 62245
This amp has a loudness (volume) control, which is a dual control and AC switch with a single shaft and knob. The only dual shaft knob/lever type controls are the two tone controls. They must have made a version different from your two.

Tom


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 Post subject: Re: sherwood s5500 balance control
PostPosted: Feb Fri 08, 2019 5:18 pm 
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Joined: May Sat 06, 2006 4:03 am
Posts: 3266
Location: ZIP 23831 South of Richmond, VA 25 miles down the pike.
SAMS link.

Bill J.

https://app.box.com/s/0rl1exh3rng5afgsc5nhexk4mjh5qd1x


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