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Scope 54610B no response from time interpolator

Question asked by Tardz on Apr 18, 2009
Latest reply on Mar 25, 2018 by shortwave_dude

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Hi, I have a scope 54610b, when I turn it ON, display is ok but there are no waveform trace displayed and an error message "no response from time interpolator". In ROLL mode, trace is normal and amplitude and time measured are ok. All front panel button respond correctly and GPIB interface is ok. I checked inside SCOPE, TRIG signal from input CH1 or CH2, I followed TRIG signal through some gates and signal are OK. But I didn't find time interpolator IC....I don't have any schematics. Somebody have an idea or schematics to help me to resolve this problem. Thanks.

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ko2054 Apr 23, 2009 1:11 PM
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Hello Tardz, I am looking for schematics for the 54610B. This may take a few days. However, we did post schematics for the 54600A and the trigger interpolator circuit should be very similar. The trigger interpolator keeps track of the time from when the scope trigger to the first data point. Once the software knows that time, the software then knows where to draw the points on the screen. If the trigger interpolator circuit is not working, then the scope is bascially useless because you cannot trust the data displayed on the screen. The 54600A schematics are at this web site.
http://www.home.agilent.com/agilent/edi ... id=1517718
If I find the 54610B schematics, I will let you know.
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Leonciom Jan 10, 2011 4:44 PM
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Have you found the error message cause? I have the same error message when I turn it on. I appreciate any help on this issue. Thanks.
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Leonciom Feb 19, 2011 4:51 AM
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Replaced U2 (OP400GS). Output (pin 7) was fixed in - 15 VDC.
Scope OK.
Thanks for your comments that was very useful to fix it.
Regards,
Leoncio (Brazil)
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shortwave_dude Mar 10, 2017 11:34 AM
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Hello

I know it's been awhile but I'm having a very similar problem with a HP54610B with respect to the time interpolator.. Don't have schematics and wondering if U2 IC fixed the problem?

Thanks!
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- Tardz @ shortwave_dude on Mar 10, 2017 4:31 PM
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  Hi, I replaced U2 and in my case, that didn’t resolve the problem.
  Unfortunately, I didn’t find the bug yet, it’s very hard without schematics.
  I will try again maybe next week. If I found anything, I will send you an
  email.
  
  De : shortwave_dude
  Envoyé : 10 mars 2017 14:35
  À : Yves Tardif <yves_tardif@videotron.ca>
  Objet : Re: - Re: Scope 54610B no response from time
  interpolator
  
  <https://community.keysight.com/?et=watches.email.thread> Keysight
  Community
  
  Re: Scope 54610B no response from time interpolator
  
  reply from shortwave_dude
  <https://community.keysight.com/people/shortwave_dude?et=watches.email.threa
  d> in Oscilloscopes - View the full discussion
  <https://community.keysight.com/message/77395?commentID=77395&et=watches.ema
  il.thread#comment-77395>
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  - shortwave_dude @ Tardz on Mar 11, 2017 4:34 AM
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    Thanks Tardz
    
    I know it's very hard. Right now just making sure all ICs are being powered. Without schematics I'm lose Thanks for responding
    
    Jon
    
    Sent from my iPhone
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    - shortwave_dude @ shortwave_dude on Mar 25, 2018 5:34 PM
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      Any further information on this error??
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Scope 54610B no response from time interpolator

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