Leestereo's Restoration/Upgrade of a Sansui AU-719

[Jay Swann]

Here? VR01 still has no effect. Thanks for your help!!

 

[Leestereo]

Is the other DMM probe on ground?

 

[Jay Swann]

Yes, that is correct. Red as pictured, and black lead to ground. Measuring VDC.

 

[Leestereo]

What is the reading you get on the driver boards? Have you confirmed that the connections to boards are correct?

 

[bobpep]

hi,

Would it be possible to get a BOM's for the AU-719 upgrade on this forum?

 

[Adaboy5]

Excellent write up. I acquired my AU-719 not to long ago and I followed some of your restoration to get her running and sounding very good. I just need to replace the trim pots on the driver boards.

 

[Bart de Jong]

Excellent piece of work. At the moment I'm working on a 719. Why is this upgrade only about caps and a few resitors? What about the transistors (2sc1313 for example)

 

[Adaboy5]

Excellent piece of work. At the moment I'm working on a 719. Why is this upgrade only about caps and a few resitors? What about the transistors (2sc1313 for example)

I believe he has another thread where he replaced transistors.

 

[Zekeman]

I Just picked up a 719. I have never heard or restored one.

I powered it up and, although it has some issues, it sounds tight.

 

[stereo71]

Working on a 719, with a messy glue issue. What would be a good replacement for the ZD-01? It has corrosion creeping up to the body...

 

[AUD101]

ZD01 = 27V, 1W --- BZV85C27 or 1N4750A ±5% OR BZX85B27 ±2%

 

[stereo71]

ZD01 = 27V, 1W --- BZV85C27 or 1N4750A ±5% OR BZX85B27 ±2%

Thanks!