Sansui CA-3000

[Pepa]

Here is some background story.
A few months ago I got a call from a friend and he said one CA/BA-3000 set wil be for sale very soon. I contacted the seller immediately, in the neighboring country, and couple hours later got a few pictures . I wasn’t impressed cause the devices has already been repaired and were not in great cosmetic condition. I wasn’t interested any more.:tears:
Month after, acquaintance of mine bought a set and...you can assume, he wasn’t satisfied at all.
I started with a preamp.
It wont be some extraordinary work,just caps changing,little re-soldering,some switches and pots cleaning...etc,etc... maybe someone will find something interesting


Regulated PS boards
Someone has already changed the caps...with cheap one

but the glue is still here

removed

Elna and Nichicon are on positions

done

 

[Hyperion]

Here is some background story.
A few months ago I got a call from a friend and he said one CA/BA-3000 set wil be for sale very soon. I contacted the seller immediately, in the neighboring country, and couple hours later got a few pictures . I wasn’t impressed cause the devices has already been repaired and were not in great cosmetic condition. I wasn’t interested any more.:tears:
Month after, acquaintance of mine bought a set and...you can assume, he wasn’t satisfied at all.
I started with a preamp.
It wont be some extraordinary work,just caps changing,little re-soldering,some switches and pots cleaning...etc,etc... maybe someone will find something interesting


Regulated PS boards
Someone has already changed the caps...with cheap one

but the glue is still here

removed

Elna and Nichicon are on positions

done

Mmmm better :yes:

 

[Pepa]

Eq boards
before

and after...not bad,ha?

 

[Pepa]

Mmmm better :yes:

I really like that fancy, green and blue and black and gold shiny caps John

head amp

 

[Pepa]

tone amp

 

[Pepa]

volume board

to be continued...

 

[ManyMoonsAudio]

Good for you for taking the time to remove the glue. That stuff just looks terrible.

 

[corbin]

This thread is relevant to my interests.

 

[Pepa]

Good for you for taking the time to remove the glue. That stuff just looks terrible.

tnx Paul,I think this kind of preamp deserves a little better work

struggling with the switches

little guy is out

none of these cleaners can remove this dirt,IMHO

looks clean?

well...not quite

 

[kevzep]

Im recapping a JVC Quad amplifier where they must have "borrowed" that glue from the Sansui factory......Its just awful stuff.....its like the black plague or something.....

Nice job Pepa!!......its good feeling when its all freshened up yeah?

 

[corbin]

Wow... how do the switches even get that dirty in the first place.

Makes me want to take mine apart like that. You probably won't have to DeOxit for years.

 

[Pepa]

Im recapping a JVC Quad amplifier where they must have "borrowed" that glue from the Sansui factory......Its just awful stuff.....its like the black plague or something.....

Nice job Pepa!!......its good feeling when its all freshened up yeah?

Tnx Kevin,I'm feeling great :yes:
Take into consideration that such job I worked last time twenty years ago. I feel like a beginner

PS-on one ps board glue was like a combination of lacquer and glue ... very difficult to remove

Wow... how do the switches even get that dirty in the first place.

Makes me want to take mine apart like that. You probably won't have to DeOxit for years.

I have no problem with taking apart... but who will put together all that boards and cables :scratch2:

 

[sregor]

Have one in my to do queue. Nice switch pix.

 

[Pepa]

Hi/low filter board

If someone asking what's with those pass through joints...I do them also,more then 50 just on this board :tears:

 

[Pepa]

Have one in my to do queue. Nice switch pix.

It will be a great job for the long winter nights :yes:


mother of all boards has been completed now

before

and after

of course, can not pass without a famous glue (luckily, just under three caps)

while I was inside, I polish connectors too

 

[Pepa]

meter board is completed

of course, these notorious diodes are replaced with two 1N4148 in series

 

[Pepa]

I almost forgot this pcb..power supply board

before

and after

In fact, at one point I lost my enthusiasm for any job like this because of all Kale's restorations ...Who can reach such a level of restoration...Kale you are killing me :cry:

Ok,after all the work, I reinforced the top cover and...and I managed to keep the white smoke inside

CA is hanging with family now

 

[Kale]

Wow!!! Pepa!!! How I didnt see that thread before :scratch2:
But CA3000 is fantastic!! Really it is!

 

[nosirrah]

Wonderful documentation of an extensive restoration.
Great pics too.
thank you guys for all you do for our forum.:yes:

 

[ManyMoonsAudio]

Very nice...... Very very nice.