DIY Do-It-Yourself manuals are made for homeowners and handymen who have mechanical abilities but can use a little training in repairing certain appliances. It is only to be used along with the service manual not as a replacement for it as it applies to the appliance type, not the specific model and will go into more details on repairing the appliance.
Notice the solid white triangle that appears on the display. Use the pan outer knob to quickly move to a few other interesting points in the waveform and place marks on them. Push the lower-bezel Search button. Push the side-bezel Search button to select Search On Off 4.
Push the lower-bezel Source button and turn multipurpose knob a to select 2 from the list of channels on the screen. The lower-bezel Polarity button should include the word Positive below it. If not, push Polarity and then the side-bezel Positive button. This is where you should begin seeing marks.
Turn the zoom inner knob, if needed, to zoom in to give you a good view of each pulse that met the criteria. Push Menu Off to the right of the display to remove the side menu. Push it again to remove the lower-bezel menu. Pan the zoom window, as needed.
Notice how easy it is to set up a bus on the your oscilloscope while you do steps 3 through 9. Push the B1 button. Turn multipurpose knobs a and b to set the SCLK 1 Threshold thresholds at about the midpoint of each a 2. SDA 2 Threshold b 2.
Push the front-panel Menu Off button once to remove the side menu. Notice what the oscilloscope is showing: Start of packet, as indicated by a green vertical bar. The yellow box shows the address. Select Binary from the side-bezel menu to show that you can decode into either Hex or Binary.
Switch back to Hex, as it is easier to Binary view. Binary Push the lower-bezel Event Table button. Push the side-bezel menu Event Table button to select On. The event table: Is similar to a state listing window in a logic analyzer display, Allows you to easily view the contents of every packet captured in the acquisition to trace system activity, Includes timestamps for each packet.
There is more to the Tektronix serial solution than just decoding and viewing bus waveforms. There is also triggering and searching. Push the front-panel Trigger Menu button. Turn multipurpose knob a to select Address. Push the lower-bezel Address button. The side-bezel Address button should already Address be selected. Turn multipurpose knobs a and b to enter a hex address of Select the side-bezel Write button.
Direction Read Write Read or Write Push Single to make an acquisition. Turn the zoom inner knob to a zoom factor of — 1,, if needed, so that you can read the bus address values found. Turn the pan outer knob to move the zoom box the gray bars at the at the top of the screen to the trigger position icon the T on an orange background to reveal what you have The trigger occurs after all the bits that constitute the search value have gone by.
Push the front-panel Trigger Menu button, if not already active. Push the lower-bezel Type button and turn multipurpose knob a to select Edge. Push the side-bezel Search button to select 6. Push the lower-bezel Search Type button and turn multipurpose knob a to select Bus from a list of choices.
This shows how easy it is to move from packet to packet. Push the lower-bezel Search For button if it is not already active and select Address with multipurpose knob a. Notice that there are fewer results now. Notice that Search and Trigger capabilities are very similar. Attach a probe to channel 1. Push Default Setup. Push Autoset. Push Acquire.
Record 5. Turn the Horizontal Scale knob to select a time per division setting of 20 ms. Push B1. Push the lower-bezel Bus button. Turn multipurpose knob a to select RS Push Single. Notice that each box contains a character. Push the Wave Inspector play button to have the oscilloscope scroll through the message so you can see what it says.
Push the play button again to stop the scrolling. Turn off zoom by pressing the front-panel zoom button. Over the years, oscilloscope vendors have provided longer and longer record lengths to meet market demands for long capture windows with high resolution. These mega-point record lengths often represent thousands of screens worth of signal activity. Zip through your 1 M point record by turning the outer pan control 1. Get from the beginning to end in seconds.
See something of interest and want to see more details? Just turn the inner zoom control 2. The inner control adjusts the zoom factor or zoom scale ; turning it clockwise activates zoom and goes to progressively higher zoom factors, while turning it counterclockwise results in lower zoom factors and eventually turning zoom off.
The outer control pans the zoom box across the waveform to quickly get to the portion of the waveform you are interested in.
The outer control also utilizes force-feedback to determine how fast to pan on the waveform. The farther you turn the outer control, the faster the zoom box moves. Pan direction is changed by simply turning the control the other way. No longer do you need to navigate through multiple menus to adjust your zoom view. Playback speed and direction are controlled using the intuitive pan control. Once again, turning the control further makes the waveform scroll faster and changing direction is as simple as turning the control the other way.
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