7S12 problem

Chris van Lint

Hi all,

My 7S12 sudden stopped working in a TDR configuration, using a S6 and S52 plug-in.  I know that the S52 and the S6 are OK, as they have been tested on a different 7S12.  The problem appears to be in the DC balance circuitry.  Turning either or both the coarse and fine balance control knobs does not result in any vertical movement of the trace. The horizontal trace is there and can be varied in terms of speed.  I wonder whether somebody who has experience with this beast can give me some idea where to start looking, as this is quite a daunting bit of gear.


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