| Electronics > Repair |
| ADVANTEST R9211B |
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| m k:
Triggering. From Timing Trace menu you can check your triggers. Then Find Edge box under a label has a dollar sign if trigger is set. Disable wrong ones by changing the pop up to period signs. Then set the correct one to down arrow, select done and a dollar sign appears. Trigger is now set. Next you hit Run, soft boot the machine and hope the best. If trigger is found before booting you can skip it. Address is above the moment when triggered signal is down. If soft booting is not possible the trigger may need a triggering delay. Every _CS signals go up when problem machine start operating, so there shouldn't be any unwanted falling edges. E, triggering signal can't stay down. It being down means that address and data bus are occupied. |
| stfjohn:
Sorry: even with the trigger set as you suggested, then connecting the logic analyzer's trigger output to the various pods (obviously varying the trigger setting from one pod to another), I still get different readings every time I turn on the Advantest! |
| stfjohn:
This is the first trigger that I then enabled on pod 06. Then I enabled, one at a time, the triggers on the other pods towards the right. |
| stfjohn:
(trigger pod 15) |
| m k:
Something is not right. Your picture of Timing Trace Specification is also different than expected. I thought there will be only one edge specifying position. Your Timing Trace Specifications picture has only POD 1, like the whole POD. I don't know what that means, maybe something earlier is needed but not defined. Maybe something you did cleared some other things. One more time then. First Timing Format Specifications, press Format key. There you connect physical POD pins to labels. Every physical pin should be assigned to one label. So finally you have signs stepping left and down. I understand Timing Trace Specifications from the Getting Started manual so that you have a physical pin position for its label marked with down arrow. So the arrow in your earlier picture should be for POD 1 06, but your picture doesn't have individual pins at all. Maybe the manual I'm reading is for different software version. If your Timing Trace is still the same with only POD 1 selection available and Timing Format was all set then no need to do new pictures. But if you changed Timing Format then you can try again. Timing Trace like you have is completely rational, but resulting waveforms are not. |
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