Started final set up of the 535A/CA plug-in. First items to check are vertical gain and time base accuracy.
Using the FeelTech FY2200SP Function Generator as signal source. Square Wave 0.5V p-p @ 50Khz. Insurance that it's output is correct via the Siglent SDS 1052DL DSO. The Siglent has original and unmolested factory cal and also has a factory cal sheet.
![](https://imagizer.imageshack.com/v2/xq90/924/HOLGTV.jpg)
Channel A of the CA plug-in. Set to 0.1V/Div and mainframe set to Time Base A sweep speed of 5us/cm. 5 major divisions deflection. Dead nuts. No adjustment required. Channel B of the CA plug-in was the same.
![](https://imagizer.imageshack.com/v2/xq90/921/hVCFrL.jpg)
Next is the sweep cal. Time Base A set to 10us. It's off. A time mark generator would be best here but I don't have one so I'll have to use the square wave.
![](https://imagizer.imageshack.com/v2/xq90/924/LPzvRZ.jpg)
Fluke 1900A connected to the Vertical Signal Out of the 535A to make sure it hasn't drifted.
![](https://imagizer.imageshack.com/v2/xq90/923/CqspQp.jpg)
Sweep cal adjusted. Now perfect. Checked Time Base B and it's OK. Also checked various other frequencies and it tracks properly.
![](https://imagizer.imageshack.com/v2/xq90/921/ahhcZm.jpg)
Follow on is to check the compensation of the CA plug-in then perform some frequency response checks. That will be a follow on post. Once that's done this project is a wrap.