Sansui BA-3000
- Thread starter Pepa
- Start date
Nicowico
Active Member
According to my SM they used both 2SB556/2SD424 and 2SA908/2SC1585.:thmbsp:
Kale
Super Member
Pepa, I really must say you that amp has so much working hours...
I would check all... fusible resistors, zenners, small signal transistors (check Hfe)... sometime, those green foil capacitors can make troubles, especially when it worked at high temperature as in that amplifier.
I would check all... fusible resistors, zenners, small signal transistors (check Hfe)... sometime, those green foil capacitors can make troubles, especially when it worked at high temperature as in that amplifier.
Kale
Super Member
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Deubi
Active Member
...Hey , Pepa...!
..I just don't want to disturb You & the other Technicians , especially in this delicate case ....
...Great Job , keep on trying to get this part of Definition-series back to life - it'll be worth every hour of ,,Headbreaking , Mind-aching'' electronical Craftmanship...
...Somehow it reminds me of my BA5K , it was Love at first sight.....
Greets & Respect , Deubi....
..I just don't want to disturb You & the other Technicians , especially in this delicate case ....
...Great Job , keep on trying to get this part of Definition-series back to life - it'll be worth every hour of ,,Headbreaking , Mind-aching'' electronical Craftmanship...
...Somehow it reminds me of my BA5K , it was Love at first sight.....
Greets & Respect , Deubi....
Pepa
Well-Known Member
Com'on Kale,I'm not Superman...I mean SuperKale
...Hey , Pepa...!
..I just don't want to disturb You & the other Technicians , especially in this delicate case ....
...Great Job , keep on trying to get this part of Definition-series back to life - it'll be worth every hour of ,,Headbreaking , Mind-aching'' electronical Craftmanship...
...Somehow it reminds me of my BA5K , it was Love at first sight.....
Greets & Respect , Deubi....
Hey Deubi :wave:
you aren't disturbing anybody,and your comments are welcomed :thmbsp:
In fact you are one to blame because my amp last night made puf
I read your post while I was putting together all this pcb, wasn't concentrated and one cap made puf in sec...in five sec to be precise.
I'm just kidding Deubi
But to tell the truth,amp did made puf.
Midnight had passed ,I am tired as a dog but still working on amp,and as soon as I turned it on... one capacitor has gone to heaven
After some xxxx words,a deep breath and counting to ten.What went wrong?:scratch2:
I wrongly connected two wires (labeled 29 and 30),and one cap on connector board cooked :yes:
Thank God, everything else is ok...amp is running all day...bias on both ch's is rock solid...life is good
Nicowico
Active Member
This is fron SM for BA3000
And this is from my BA 3000 SM.
Now that I think about it.... I have seen an AU-20000 (I think I've worked on close to all of them) loaded with the Toshiba devices, and the installation was stock looking. They may have used them also.
At any rate, they are all good parts.
At any rate, they are all good parts.
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Pepa
Well-Known Member
Good news Pepa !
+1 obvious signs a butcher has been at work - but I think you have rescued it very well. :yes: :thmbsp:
tnx John,
although the amp is working well,I'm not super satisfied...I don't know...maybe is just me....or because all of my Sansui is in "as new" condition .
Anyway, I would like to purchase one pair of these gorgeous amplifiers :yes:
I don't know if you've done it, but I would run it on some test equipment. Especially in the shape that one was in....