Done. This one was easy.
![](https://imagizer.imageshack.com/v2/xq90/922/UqLXXX.jpg)
Verified and back on duty.
![](https://imagizer.imageshack.com/v2/xq90/921/pRwhbz.jpg)
Nice!
![ThumbsUp :-+](https://www.eevblog.com/forum/Smileys/default/icon_smile_thumbsup.gif)
The spaceship is counting again!
![Laughing :-DD](https://www.eevblog.com/forum/Smileys/default/smiley_laughing.gif)
I also did some recapping on my blue-faced HP 3456A voltmeter today because it was not happy and threw an error 4 when in self-testing.
I checked the voltage rails and 33V was an AC voltage with 5V DC offset.
![WTF? :wtf:](https://www.eevblog.com/forum/Smileys/default/wtf2.gif)
Having discovered that I looked at the voltage rails with my analogue scope and discovered rail -18V had a ripple on it.
I had to swap two caps that were completely dead (some pF left of 470/100µF) and a third one that still had its capacity but a high ESR failure:
![Test Equipment Anonymous (TEA) group therapy thread 944694-0](https://www.eevblog.com/forum/index.php?action=dlattach;topic=81471.0;attach=944694;image)
All other caps measured well within spec and with small ESR values <<1ohm.
Now it seems like this repaired unit has less noise than the two other I measured the noise comparing different integration times.
Well, I think I have to check those two other units as well now..
![Face Palm :palm:](https://www.eevblog.com/forum/Smileys/default/facepalm.gif)