Cannot select the SMU, could this be a hardware issue?

<p>We have questions regarding the parts (2636B, 2657A, 8010). We cannot select the source-measure unit (SMU). As you can see the attachments, the option is grey. Can you please let us know what could be the issues? We looked through all the manuals and couldn't figure it out.</p> <grammarly-desktop-integration data-grammarly-shadow-root="true"></grammarly-desktop-integration>

Hello,

Due to the complexity of issues related to our PCT and similar systems, I would recommend generating a support case with our Applications Engineers.
However, I have found that you already have a case open with our support team. One of our engineers should be in contact soon to assist with your request.