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Entry  Wed May 11 10:49:16 2011, valera, Configuration, Electronics, MC3 LL PD has no signal 
    Reply  Wed May 11 17:10:04 2011, kiwamu, Configuration, Electronics, fixed : MC3 LL PD has no signal looseconnectionMC3.png
Message ID: 4691     Entry time: Wed May 11 17:10:04 2011     In reply to: 4685
Author: kiwamu 
Type: Configuration 
Category: Electronics 
Subject: fixed : MC3 LL PD has no signal 

[Valera / Kiwamu]

It was because of a loose connection. Pushing the connector solved the issue.

looseconnectionMC3.png

We really have to think about making reliable connections and strain reliefs.

Quote from #4685

Yesterday we found that MC3 OSEM LL PD did not have a sensible signal - the readback was close to zero and it was making MC move around. I disabled the PD LL so that the damping is done with just three face plus side PDs. There still no signal from MC3 LL PD today. It needs debugging.

 

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