lecroy 93XXC-OM-E06 电路图.pdf

《lecroy 93XXC-OM-E06 电路图.pdf》由会员分享，可在线阅读，更多相关《lecroy 93XXC-OM-E06 电路图.pdf（10页珍藏版）》请在收音机爱好者资料库上搜索。

1、? ? ,QWURGXFWLRQ?WR?WKH?&RQWUROV 7ZR?&KDQQHO?)URQW?3DQHO RadioFans.CN 收音机爱 好者资料库 ? ,QWURGXFWLRQ?WR?WKH?&RQWUROV )RXU?&KDQQHO?)URQW?3DQHO RadioFans.CN 收音机爱 好者资料库 ? 7KH?0DLQ?&RQWUROV The front panel controls are divided into four main groups of buttons and knobs: the System Setup and menu controls, CH

2、ANNELS, TIMEBASE + TRIGGER and ZOOM + MATH. 6VWHP?6HWXSDark-gray, menu-entry buttons, also represented in the other groups of controls, provide access to the main on-screen menus and the acquisition, processing and display modes of the instrument. The SCREEN DUMP, SHOW STATUS and CLEAR SWEEPS button

3、s, respectively: copy or print the screen display, show on- screen summaries of the scopes status, and restart operations that require several acquisitions. See page 46. 0HQX?%XWWRQV?.QREVThe seven untitled buttons vertically aligned beside the screen, RETURN and the two linked rotary knobs enable o

4、n-screen menu selection. See following pages. &+$11(/6?This group offers selection of displayed traces and adjustment of vertical sensitivity and offset. See Chapter 5. $872?6(783?This singular blue button automatically adjusts the scope to acquire and display signals on the input channels. See Chap

5、ter 6. 7,0(%$6(?75,*(5?These controls allow direct adjustment of time/division, trigger level and delay, as well as access to the “TIMEBASE” and “TRIGGER” menu groups. See Chapters 6, 7 and 8. =220?0$7+And this group controls trace selection, movement, definition, and expansion with Zoom and Math fu

6、nctions. See Chapters 9 and 10. See also “Getting Started”, Part 2 of the +DQGV?2Q?*XLGH, for more on the front-panel and a complete run-through of the controls RadioFans.CN 收音机爱 好者资料库 ? ,QWURGXFWLRQ?WR?WKH?&RQWUROV &KRRVLQJ?DQG?1DYLJDWLQJ?LQ?0HQXV On-screen menus the panels running down the right-h

7、and side of the screen are used to select specific scope actions and settings. All other on-screen text is for information only. The menus are broadly grouped according to function. The name of each menu group is shown at the top of the column of menus. Individual menus also have names in the top of

8、 their frames. Each menu either contains a list of items or options functions to be selected or variables modified or when selected performs a specific action. Menus that perform certain actions are indicated by capitalized text, as in the example shown at left. *RLQJ?WR?0HQXV?DQG 6HOHFWLQJ?IURP?WKH

9、P When a menu-entry button is pressed, the set-up configuration for its particular group of functions is immediately displayed on-screen as a menu group. Once accessed, these menus are controlled using the menu buttons and the two menu knobs (illustrated at left). A menu button is active and can be

10、pressed to make selections whenever a menu is visible beside it on-screen. The two menu knobswork together with the two menu buttons to which they are joined by lines. Both control the menus currently shown beside them. Buttons and knobs are used either for selecting entire menus, particular items f

11、rom menus, for moving up or down through menu lists, or for changing the values listed in menus. Some menus, referred to as primary, have secondary menus beneath them whose existence is indicated by a heavy outline or shadow, as illustrated at left. Pressing the corresponding menu button reveals and

12、 activates these hidden menus. Pressing the RETURN button again displays the top, or primary, menu. Changing a menu value normally changes the screen, because the new value is immediately used in acquisition settings, processing or display. ? 6HWWLQJ?0HQX?2SWLRQVThe activated selection is highlighte

13、d in the menu. Press the corresponding menu button and the field will advance to highlight and select the next item on the menu. However, if there is only one item on a menu, pressing its button will have no effect. Where a menu is associated with one of the two menu knobs, turning this knob in one

14、direction or the other will cause the selection to move either up or down the list in the menu. Menus that extend along the length of two menu buttons can be operated using both buttons. Pressing the lower of the two will move the highlighting forward down the list while pushing the upper will move

15、the selector back up the list. An arrow on the side of a menu frame indicates that by pressing the button beside this arrow, the selection can be moved further up or down the list. The arrows direction shows whether the highlighting selector will move up or down. Arrows may also indicate items that

16、are not visible, either above or below on the list. The respective arrow will disappear when the selection is at the very beginning or end of the list. As in the examples at left, some menu button and knob combinations control the value of a continuously adjustable variable. The knob is then used to

17、 set its value, while the button either selects a value or makes a simple change in it. Still other menu button and knob combinations control the value of several continuously adjustable variables, with the knob used to set the value and the button to highlight it. 1RWH? When the oscilloscope is pla

18、ced in a remote state, the REMOTE ENABLE menu will be displayed. It will contain the command “GO TO LOCAL”, activated by menu button if the action is possible. This is the only manual way to turn off the REMOTE ENABLE menu. The scope need not be in remote state to accept remote commands. ? ,QWURGXFW

19、LRQ?WR?WKH?&RQWUROV 6VWHP?6HWXS?DQG?0HQX?&RQWUROV As well as the menu buttons and knobs described on the previous pages, the System Setup controls include the menu- entry buttons and others for copying displays, reporting instrument status and restarting multiple-acquisition operations. The RETURN b

20、uttonis used to go back to the preceding displayed menu group. Or it returns the display to a higher-level, or primary menu. But when the display is at the highest possible menu level, the button switches off that menu. Each of the dark-gray menu-entry buttons activates a major set of on-screen menu

21、s (those represented in the other control groups are described in the following chapters, along with the other elements in the groups). The DISPLAY button provides entry to the “DISPLAY SETUP” group of menus, controlling display mode, grids, intensities, Dot Join and Persistence menus. See Chapter 1

22、1. The UTILITIES button gives access to the “UTILITIES” menus, controlling hardcopy setups, GPIB addresses and special modes of operation. Chapter 12. The WAVEFORM STORE button accesses the “STORE WFORM” menus, used for storing waveforms to internal or external memory. Chapter 13. Whereas, WAVEFORM

23、RECALL calls up “RECALL WFORM”: menus for retrieving waveforms stored in internal or external memory. Chapter 13. CURSORS/MEASURE offers up the “CURSORS” Setup menus, used for making precise cursor measurements on traces, and “MEASURE”, for precise parameter measurements. Chapter 14. ? And PANEL SET

24、UPS gives access to the “PANEL SETUPS” menus for saving and recalling a configuration of the instrument. See Chapter 13. 6&5(1?803 prints or plots the screen display to an on-line hardcopy device, via the GPIB, RS-232-C or Centronics interface ports, or directly to an external thermal graphics print

25、er. Hardcopies can also be generated as data files onto floppy, memory card or portable hard disk. Once SCREEN DUMP is pressed, all displayed information will be copied. However, it is possible to copy the waveforms without the grid by turning the grid intensity to 0 with the “Display Setup” menu. W

26、hile a screen dump is taking place indicated by the on-screen “PRINTING” or “PLOTTING” message it can be aborted by pressing SCREEN DUMP a second time. It will take a certain amount of time for the buffer to empty before copying stops. &/($5?6:(36 restarts operations requiring several acquisitions,

27、or sweeps, including averaging, extrema, persistence and pass/fail testing, by resetting the sweep counter(s) to zero. 6+2:?67$786 menu entry to “STATUS”, which shows summaries of the instruments status for acquisition, system and other aspects. See Chapter 16. ? ,QWURGXFWLRQ?WR?WKH?&RQWUROV 6FUHHQ?

28、7RSRJUDSK The sections of the screen shown here and described below, which surround the grid, contain a variety of useful information as well as accessing specific commands and functions. ? Real-Time Clock field: powered by a battery-backed real-time clock, it displays the current date and time. Dis

29、played Trace Label indicates each channel or channel displayed, the time/div and volts/div settings, and cursor readings where appropriate. It indicates the acquisition parameters set when the trace was captured or processed, while the Acquisition Summary field (below) indicates the present setting.

30、 Acquisition Summary field: timebase, volts/div, probe attenuation and coupling for each channel, with the selected channel highlighted. It indicates the present setting, while the acquisition parameters set when the trace was captured or processed are indicated in the Displayed Trace label (above).

31、 Trigger Level arrows on both sides of the grid that mark the trigger voltage level relative to ground level. Trigger Delay: an arrow indicating the trigger time relative to the trace. The delay can be adjusted from zero to ten grid divisions (pre-trigger), or zero to 10 000 (post-trigger) off-scree

32、n. Pre- trigger delay appears as the upward-pointing arrow, while post- trigger is given as a delay in seconds. Trigger Status field shows sample rate and trigger re-arming status (AUTO, NORMAL, SINGLE, STOPPED). The small square icon flashes to indicate that an acquisition has been made. Trigger Co

33、nfiguration field: icon indicating type of trigger, and information on the triggers source, slope, level and coupling, and other information when appropriate. Trace and Ground Level: trace number and ground-level marker. ? ,QWURGXFWLRQ?WR?WKH?&RQWUROV 2WKHU?)LHOGV (not illustrated here) Time and Fre

34、quency field: displays time and frequency relative to cursors beneath the grid. For example, when the absolute time cursor (the cross-hair) is activated by selection from the “MEASURE” menu group, this field displays the time between the cursor and the trigger point. Message field: used to display a

35、 variety of messages, above the grid, including warnings, indications and titles showing the instruments current status. *HQHUDO?,QVWUXPHQW?5HVHW? Simultaneously press the AUTO SETUP button, the top menu button, and the RETURN button. The scope will revert to its default power-up settings. 3UHVV? AUTO SETUP ? ?