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067-0500-00: Difference between revisions
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{{Plugin Sidebar | |||
|manufacturer=Tektronix | |||
|series=560-series scopes | |||
|type=067-0500-00 | |||
|summary=calibration fixture | |||
|image=067-0500-00_front.jpg | |||
|caption=067-0500-00 Front | |||
|introduced=(?) | |||
|discontinued=(?) | |||
|designers= | |||
|manuals= | |||
* [[Media:062-0806-00.pdf|Tektronix 067-0500-00 Manual (-00)]] (OCR) | |||
* [[Media:062-0806-01.pdf|Tektronix 067-0500-00 Manual (-01)]] | |||
}} | |||
The '''Tektronix 067-0500-00''' (first designated the 3M1, then the 067-500) is a calibration fixture for adjusting the normalizing capacitor behind the plug-in connector in [[560-series scopes | 560-Series scopes]]. | |||
It consists of a Schmitt trigger that is driven from a single-ended input coming from a BNC connector on the front panel. | |||
The Schmitt trigger produces balanced output signals with controlled source impedance. | |||
The normalizing capacitor in the scope mainframe is adjusted using a procedure similar to adjusting probe compensation. | |||
When adjusted correctly, the voltage division ratio formed by the plug-in's output impedance and the mainframe's input impedance should be a real value which does not change across the specified frequency range of the scope. | |||
After the scope is normalized using the 3M1, other plug-ins can be adjusted to produce clean transient response in the normalized scope. | |||
Note that C131 and C136, on the printed circuit board, were set at the factory and should never be touched. | |||
The two early versions of this plugin require 50 to 100 V square wave pulses to drive the Schmidt trigger, but only the earliest members of the [[560-series scopes | 560-Series scopes]] have a calibrator output that will go that high. The 3M1 pictured below has been modified to work with 40 V pulses. See the Repairs tab for details. | |||
==3M1== | |||
<gallery> | |||
3M1_F.JPG | 3M1 Front | |||
3M1_PCB.JPG | 3M1 Circuit Board <br/> (note added resistor) | |||
3M1_SCH.JPG | 3M1 Schematic <br/> (added resistor on the left) | |||
3M1_INST.JPG | 3M1 Operating Instructions | |||
</gallery> | |||
==067-500== | |||
<gallery> | |||
067-500 1a.jpg | 067-500 Front | |||
067-500 3.jpg | 067-500 Inside Left | |||
067-500 5a.jpg | 067-500 Inside Right | |||
</gallery> | |||
==067-0500-00== | |||
<gallery> | |||
067-0500-00_front.jpg | 067-0500-00 Front | |||
067-0500-00_schem.jpg | 067-0500-00 Schematic | |||
067-0500-00_insides.jpg | 067-0500-00 PCB | |||
</gallery> | |||
[[Category:Calibration fixtures]] | |||
[[Category:560 series plugins]] | |||