Technics SA-616 Repair

[nadude98]

Hi, I have this Technics that a friend of mine found when cleaning a house of a buddy of his that passed away. It is a SA616 that's in rough shape. When I powered it up using a DBT it smoked a resistor.
I will post more on that later with pics but I just have a quick question right now.
There is a component I can't find any info on. It is a voltage regulator IC SVITA78L006A. Any ideas?
Thanks!

 

[nadude98]

RR690 smoked. Where I am at now is I have -27vdc at emitter of Q640, Q638 emitter -27vdc, D652 41vdc anode and 39vdc cathode, Q632 e 39vdc b -29vdc c -41vdc,
D618 anode -29vdc cathode -29vdc, Q634 b -26vdc c 41vdc e -26vdc Q636 b-27vdc c -41vdc e -26vdc, D610 -27vdc cathode --300mvdc, D616 -21vdc cathode -21vdc anode. Q620 c -29vdc b -21vdc e -27vdc D614 -27vdc cathode -.1mvdc D618 b -27vdc c -200mvdc e -27vdc
That's where I am at.
Any help greatly appreciated.. I think I am getting senile in my older age as this reciever has me cornfused.

 

[Ray Gianelli]

Hi, I have this Technics that a friend of mine found when cleaning a house of a buddy of his that passed away. It is a SA616 that's in rough shape. When I powered it up using a DBT it smoked a resistor.
I will post more on that later with pics but I just have a quick question right now.
There is a component I can't find any info on. It is a voltage regulator IC SVITA78L006A. Any ideas?
Thanks!

Looks like a 6 volt positive 3 terminal regulator.

https://www.digikey.com/en/products/detail/stmicroelectronics/L78L06ABZ/585534

 

[nadude98]

Thanks!