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AU-5900 parts search and general repair questions

T

tweedsmith

New Member
Hello,
I've found some great info here as usual, but was hoping for some specific help with my au-5900.
Based on another thread, I was attempting to replace the 2SA798 transistor pairs on the F2596 board with some ksa992s I happened to have from working on my 6060.
In the process I clipped a cap nearby, and I'm a little rusty on identifying it with 100% comfort. I have the service manual, but this is just a weakness of mine. It's a disk shaped capacitor with 101k printed on it.
I also had a small list of recommended replacement parts that I was going to track down after trying the transistor swap, for an issue similar to what I'm hearing (snap, crackle in one channel, isolated after left-right swapping the preamp/amp connection), if anyone has recommended common replacement parts for F2596 that they want to throw at me, I'd appreciate it.
Attaching photos of the snipped cap (C07), an intact example (C08), and just to satisfy my curiosity, a bigger picture of the board, if anyone has opinions on if this board looks like it has been gone over previously.
Thanks for anything at all you folks want to provide!
 

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gslikker said:
It is 100 pF ceramic one, probably your service manual will indicate that.
Click to expand...
ok, thanks! The service manual doesn't list most caps with their boards, but has a "common parts" list as an appendix. Which I am generally horrible at grasping. I usually just read the value off the caps if possible, but I wanted to be sure here. Thanks again.
 
EastPoint said:
100pf 500v or 1000v will be fine.
Click to expand...
awesome, thanks!
And I found the other thread I was thinking of here:
https://audiokarma.org/forums/index.php?threads/sansui-au-5900-sound-cuts-out-popping-sound.510871/
that I used to add a few more parts to my order.

Looking at my board, it looks like someone already replaced the resistors at R31, 32, 41 and 42 as they are soldered onto tall legs off the surface.

for reference, this is the part I'm ordering:
https://www.mouser.com/ProductDetail/594-D101K20Y5PL6TJ5R
 
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