• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

Solid State 7000 by Sansui?

tankdonovan

tankdonovan

Senior AK Member
Solid State 7000 Receiver by Sansui

Does anyone know anything about a Solid State 7000 by Sansui? I picked up one at a yard sale today. It looked like it had been sitting for years in a dirty garage. I cleaned it up. Looks pretty good. All the lights work. I`m in the process of checking all functions out. I don`t know anything about Sansui. I`m a Pioneer collector.

TankDonovan
 
Register to hide this ad
The 7000 is a very close cousin to the model EIGHT. They have almost identical construction and function. The model Eight is considered to be the Top of the line Sansui receiver of the era but it is rated at 60 watts a channel and the 7000 is 70 watts. The 7000 must have been sold through a different distribution network. Another unique feature of the high end Sansui receivers of this era is the tone controls are not potentiometers, they are multi position rotary switches with gangs of fixed resistors. This is a very high end feature. They also have very good tuners.

The 7000 is a very nice older receiver. It is worth fixing.

- Pete
 
Pete,
Thanks for info. I may keep it. My first Sansui. It has cleaned up real well and I think everything is going to work just fine. It just needs a little TLC.
TankDonovan
 
I have one. Lot of em came from mil. exchanges overseas(viet nam). Don't know if they were avail. state side but maybe. 70 wpc/8ohms. Ginchy tonecontrol knobs. Engraved lettering. Got mine from a nam vet 15yrs ago free. check the sansui appreciation website for all the gory details. I like the 7000 better than the eight appearance wise. the eight has a sort of granular gold colored surface front panel. but that's just me.
PS: those button nomenclature inserts are virtually irreplacable so if you got all of em guard em with your life.
 
Last edited:
The 7000 was as I've always heard it the Japanese "8". Never was sold stateside that I heard of. If it was ever sold in Europe I haven't found it either. If you have any problems with it mail me..... I'm about an hour north of ya!

Ron

BTW... others already said it fine but the 7000 is a great receiver. Frontends are great on em and the amp kinda sounded halfway in betwween the tube days and the following xxxx series.
 
approse,oldhifiguy,
Makes sense, sold to military personal only in the Pacific region.

The sound will come and go, real low, then loud. I can push the tape monitors or mono button and it comes in loud and clear then up and down again. It gets a little static, too. Sounds like all the contacts and pots are dirty. Are they easy to get to and clean? I`ve not taken the cover off yet.

Thanks for all the info.
TankDonovan
 
Take off the bottom cover and you can get to the rotary controls for cleaning. A "Cheaters" method for cleaning all the push button switches, is to remove the knobs/jack retainers/front panel/push buttons/felt-like gaskets. Set the front of the receiver up about a half an inch,(so cleaner will migrate inside the switches) and blast some cleaner into each switch, from the front. You'll know if it's getting in there when you see it drip out the back, of the switches. Cycle them all, till they're happy. Granted, this method might not be "The Tech Way", but it's easier than a major take-apart, and it works.
 
rek50,
Just took the bottom cover off. And to my surprise the insides is very clean. The out side was a mess. Go figure. Thanks for the info. It looks like a little trouble getting to but not as bad as my Pioneer SX-5580. Maybe I`ll get time tomorrow to do the job. Just pushing the buttons in and out over and over has helped some. But it needs a good cleaning.
TankDonovan
 
TD

I use cleaner myself but only if all else fails. Not always having the proper cleaner or funds in the past I find the tried and true 100 reps to work well. Work each control methodically 75 - 100 times. It's not a speed race just using trying to move off oxidation from contacts and in the cases of pots, if you do this instead of a cleaner right away, if there's any rements of original lubrication left at the extremes of travel, you'll respread some of it around. The only place I usually end up lubricatng anyhow is the tuner cap lock clips. Try it, you might be surprised!

Ron
 
Ron,
I have often done the same with good results.
Here is what I have after some cleaning and button pushing. Mostly button pushing, ran out of cleaner.

Am works both channels. FM shows signal and tuning meters as working but no sound in left or right channels. Phono 1 and 2 has sound in left channels only. Aux has sound in both left and right.[sounds good] Also Tape 1 and Tape 2 Monitor has sound in both left and right. Little static in left on tape 2. Does this make sense?

I need a receiver to go with my DVD player in the den. If all I get working good is AUX, then I`ll use it for that.

TankDonovan
 
Makes sense when you find the fault I guess, sounds most like function switching fault. THe odd one is the fm... unless the fm mute isn't turned off but, you live in a strong signal area so should be over that threshold on most stations. Pull the hood and make sure someone didn't do something like leaving a connector off? AUX should work good if all else fails like you said. Impedence shouldn'd be a bad match. Ifyou can't get some Caig on the function selector contacts then perhaps some more working, otherwise time to trace.

Ron
 
Deadear here in Fort St John BC Canada , if you ever decide to part with your 7000 please let me know , I have a 7000 and would love to have another one , Thanks , Gary .
 
Thanks everyone for your help.
I need to order some more DeoxIT. Maybe I`ll get it working on all functions. I still think it is only a cleaning/selector problem.
When I bought the 7000 it had a CD player with it. I guess that is why the AUX works so well. That was probably the only thing it had been used for. Although I don`t think it had been used for sometime.
Deadear, I`ll let you know if I deside to sell. It will have to be working correctly before I would even think about selling.
TankDonovan
 
Got DeoxIT today. Had a little time so I DeoxIT the 7000. Selector switch, push buttons. Some improvements. Here is the results:
AM/FM Stereo/Mono, Aux, Tape 1, Tape 2 all function just great. Very clear, no static. Maybe a little from FM[due to signal strength in and out].
Phono 1, Phono 2, both work fairly well on left channel. Right channel on both come and go with lower volume and a lot of static.
Any ideas what might be causeing the Phono problems?
TankDonovan
 
I would work phono 1 and 2 again and if that did not cure it I would use the deOxit again still sounds like a contack problem.

Ron
 
Does the noise and fading occur when turning the controls or when just playing the unit? Does jiggling the controls while the noise and fading is occurring change the symptoms? If the symptoms change when working the controls, then you still have cleaning to do. If they don’t change when working the controls and remain when not working the controls then you have 30+ year old electronics that need attention. Could be bad solder joints or failed caps. In either of these cases, you will need to poke around internally.

- Pete
 
LBPete,
I used DeoxIT again. And...., the results is the same. The right channel still has static as before. There is static when the selector is on Phono 1 or 2 period[with or without phono plugged in.] It gets louder as I turn the volume up. As you said "30+ year old electronics that needs attention". DeoxIT can work miracles sometimes, but not all the time. I have looked for bad solder joints and don`t see any. I may be looking in the wrong place. I would like to get everything working right. Even if I`m not going to use the phono[I have 3 turntables I`m useing now]. Just to know that everything is right.
TankDonovan
 
Well...,looks like the 7000 is going to my Vintage Stereo graveyard. Something has happened that is BIG. I was listening to it[FM] and all of a sudden a very loud noise started, like scratching and static. I cut the volume all the way down and it still made the noise. I cut it off and for two or three seconds the noise was still there and then quit. With volume all the way down, I cut it back on[different station] and the same thing happenned. Three or four times I cut it off and back on and got the same results. This noise is the kind that hurts the ears. I hope I didn`t blow the speakers.
My vintage graveyard is growing. I need to clear it out but I just hate to throw it in the trash.
TankDonovan
 
UPDATE!

I hooked the 7000 up to my Pioneer SX-5580[thru the pre-outs] and the loud noise was gone. I also went ahead and tried the phono 1 and 2 thru the Pioneer and it had the same problem as before when tested just using the 7000. I sprayed some DeoxIT in the pre-out and pre-in holes. Then I tried the 7000 out again and the noise WAS GONE! So, I hooked up the phono 1 and 2 and the problem was still there as before. Right channel volume in and out with static in and out. Oh, Well..,at least the loud noise is gone.
TankDonovan
 
TankDonovan. I have followed your post re the 7000 , I have one as well that I use daily and it is a good unit even though they have no protection circuits at all .
If you decide to put it out to pasture please let me know as I would love to have a parts unit as backup , thanks , Gary .
 
You must log in or register to reply here.
Back
Top Bottom