I need these since i have Rotel RB-1000 amp and can't find any datasheet for these. Need your help.
It seem nobody has encountered or used this Hybrid IC. I got busted one. i can't find any legit seller online so planning to imitate the actual internal schema but cant find datasheets containing the schema. Does any body has one for sale?
Yes I know the external connections based on that service manual, however i want to replicate o try to fix it since this chip can be opened, just don't know if they were potted. one channel is working nicely . worst scenario, i will just replaced the whole amp board with a new DIY amp or commercial class D, but it will degrade the unit value. Thanks anyway..
It is Sanken version of Sanyo STK.
One channel dead, blown speakers, blown transformer etc, were common in STK modules.
Same issues with Sanken, went out of production about 1990.
Best to put a Mosfet amp PCB, select for supply voltage.
Or Class D, if you like.
Or dispose of it.
Do not attempt repairs unless you are very competent.
In India, the 'Mosfet" amp PCB, fully populated, without heat sink is about $8, so think of your time and effort in trying to repair that defective module.
And bear in mind the other channel might blow anytime.
Too much tension for me...
'Degrade the value'?
Made in Japan for Rotel, who multiplied the price.
Who will pay good money for a damaged amp?
I thought they were obscure European stuff like B&O.
Selling because it is bragging rights stuff.
STKs sound the same, only audiophools disagree about that.
If you open the hood, so to speak, the components are the same as a good Japanese amp, those are much cheaper.
One channel dead, blown speakers, blown transformer etc, were common in STK modules.
Same issues with Sanken, went out of production about 1990.
Best to put a Mosfet amp PCB, select for supply voltage.
Or Class D, if you like.
Or dispose of it.
Do not attempt repairs unless you are very competent.
In India, the 'Mosfet" amp PCB, fully populated, without heat sink is about $8, so think of your time and effort in trying to repair that defective module.
And bear in mind the other channel might blow anytime.
Too much tension for me...
'Degrade the value'?
Made in Japan for Rotel, who multiplied the price.
Who will pay good money for a damaged amp?
I thought they were obscure European stuff like B&O.
Selling because it is bragging rights stuff.
STKs sound the same, only audiophools disagree about that.
If you open the hood, so to speak, the components are the same as a good Japanese amp, those are much cheaper.
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Well that's one plan that i have in mind, if can't find any spare or data then its the easiest way to go to. I have plenty of DIY boards, Might as well populate them and use the same hsink and psu ( +/- 40vdc.).
thanks..
You easy find integrated amps doing the same thing. and boards even smaler.
Lm3886 is one but is probably spec is little lowr than your volltage.
Lm3886 is one but is probably spec is little lowr than your volltage.
I've repaired one SI1340H. I don't know if your is similar.
https://www.diyaudio.com/community/threads/hum-noise-on-pre-amp-vintage.322708/#post-6990237
https://www.diyaudio.com/community/threads/hum-noise-on-pre-amp-vintage.322708/#post-6990237
Thanks for the info, I Think they are almost the same, only specs maybe the difference. I will try to open it and see.