LeCroy_7200_Series_Operators_Manual 电路图.pdf

《LeCroy_7200_Series_Operators_Manual 电路图.pdf》由会员分享，可在线阅读，更多相关《LeCroy_7200_Series_Operators_Manual 电路图.pdf（481页珍藏版）》请在收音机爱好者资料库上搜索。

1、Table of Contents General Information Table of Contents Manuals .i Using This Manual .i Warranty .iii Product Assistance .iv Maintenance Agreements .iv Service Procedure .iv Safety Precautions .vii ESD Precaution . .viii Plug-in Module Installation and Removal .x Section 1: Product Description1-1 Bl

2、ock Diagram .I-4 Section 2: Installation2-1 Attach Line Cord .2-1 Operate in Proper Environment .2-1 Apply Power .2-2 Selecting the Computer Port .2-2 Setting the GPIB Address .2-2 GPIB Host and Hardcopy Operation .2-3 RS-232-C Configuration .2-7 Install the Plug-in(s) .2-12 Section 3: Operation3-1

3、Overview .3-1 7200A Mainframe Front Panel .3-10 Acquisition Keys .3-11 TOC-1 RadioFans.CN 收音机爱 好者资料库 Table of Contents Waveform Display and Measurement .3-15 Panel Settings Storage .3-51 Hardcopy .3-51 Programming .3-51 Using Setup Screens .3-53 Configure System .3-54 Setting Up Traces and Processin

4、g Functions .3-56 Extended Parameter Setup .3-89 Persistence Setup Screen .3-99 Multi Zoom Setup Screen .3-101 Hardcopy Setup .3-103 Waveform Storage Setup .3-112 Waveform Recall Setup .3-115 Disk Utilities .3-118 Configure System .3-127 Program Setup .3-139 7242 Series Operators Manual4-1 The 7242

5、Series .4-1 Accessories and Options .4-1 Specifications .4-1 Installation .4-3 Install the Plug-in(s) .4-3 Operation .4-4 Probes .4-4 Control Layout .4-5 Display of Acquisition Settings .4-6 7242 Series Plug-in Front Panel Controls .4-8 TOC RadioFans.CN 收音机爱 好者资料库 Table of Contents Index to Controls

6、 .4-9 Vertical Controls .4-10 Timebase Controls .4-12 Trigger Controls .4-14 VERTICAL Status .4-17 TIMEBASE Status .4-20 TRIGGER Status .4-25 Standard Trigger .4-27 Smart Trigger .4-27 Single Source .4-30 Pattern . .4-34 State Qualified .4-39 Time Qualified .4-45 TV .4-50 Plug-in Status .4-51 7234 P

7、lug-in Operators Manual4-53 Installation .4-55 Install the Plug-in(s) .4-55 Operation .4-57 Probes .4-57 Control Layout .4-58 Display of Acquisition Settings .4-59 7234 Plug-in Front Panel Controls: .4-61 Vertical Controls .4-63 Timebase Controls .4-66 Trigger Controls .4-67 VERTICAL Status .4-71 TO

8、C-3 RadioFans.CN 收音机爱 好者资料库 Table of Contents TIMEBASE Status .4-74 TRIGGER Status .4-79 Standard Trigger .4-81 Smart Trigger TM . 4-81 Single Source .4-84 Pattern .4-88 State Qualified .4-93 Time Qualified .4-99 Plug-in Status .4-104 Appendix AA-I Summary of Waveform Processing, Display, and Storag

9、e .A-I Appendix BB-I Raekmount Installation .B-1 Appendix CC-I Accessories .C-1 Appendix D - 7291 2GS/sec AdaptorD-1 Features .D-1 Calibration .D-2 Operation .D-4 Appendix E - 7200ARCLK Installation, Test and Cal Procedure E-1 How to Use This Manual .E-1 Installation .E-3 Calibration .E-5 Test .E-6

10、TOC4 Table of Contents Appendix F - 7200A-IF2 Installation . . .; . . .+ 1+ + +:+ Floppy Disk Hard Disk I IEEE-488 I Plotters, RS.232-C Printers and Centronlcs Remote Control External Reference IN/OUT Analog Inputs External Sample Clock Analog Inputs External Sample Clock Trigger IN/OUT Figure 1.1:

11、7200A Block Diagram 1-4 Section 2: Installation The 7200A runs over the full line voltage range of 90 Volt to 250 Volt AC rms and source fre- quencies of 47 to 63 Hertz. The 7200A is shipped with the fuse drawer and fuses most common to its destination al- ready installed in the line cord connector

12、(rear panel). Attach Line Cord The AC input receptacle (CEE-22 style) located in the line cord connector (rear panel) three recessed male pins which accept the detachable line cord. To obtain an AC line cord other than the one supplied, please contact the factory. Operate in Proper Environment WARNI

13、NG: To avoid explosion, do not operate the 7200A in an atmosphere of explosive gases. To ensure proper operation and long instrument life, the 7200A should be operated within the following environmental conditions: Temperature Ambient air temperatures between 0 to +40 C. Storage temperatures can ran

14、ge between -40 to +75 C. Ventilation The Model 7200A is cooled by air drawn from the bottom front and exhausted through the rear. Operate the instrument on a hard flat surface, or carpeting of very low pile. Allow at least one half inch clearance under the bottom and 2 behind the rear fans and along

15、 the side panels. Grounding Ensure a good ground. The Model 7200A is a Safety Class 1 instrument. Its exposed metal chassis is directly connected to earth via the power supply cord. 2-1 Setting the GPIB Address WARNING: To avoid possible shock hazard, ground the 7200A chassis by connecting the power

16、 supply cord to an earth grounded AC power receptacle. Do not make any connections to the instruments input or output terminals until the 7200A is properly grounded. Apply Power CAUTION: Use correct power source. The Model 7200A is designed to operate from a single-phase power source. The voltage to

17、 ground (earth) from either pole of the power source must not exceed the maximum rated operating voltage, 250 Volts AC rms. To supply power to the 7200A, set its rear panel ON/OFF switch to the ON (I) position. Selecting the Computer Port CAUTION: Before connecting external equipment to the 7200A, s

18、et its front panel power switch to the OFF (0) position. The 7200A provides three interfaces: the General Purpose Interface Bus (GPIB), an RS-232- C Sedal Port, and a Centronics Port. The GPIB end RS-232-C ports can be used to connect the 7200A to a host computer or to connect to a printer or plotte

19、r for hardcopy output. The Centronics port is used for hardcopy output only. The advantage of GPIB is high transmis- sion rates. The advantage of RS-232-C is that it is a lower cost interface which can generally be used over longer distances. If the 7200A will be used in conjunction with a host comp

20、uter, set the =Remote Control from field in the Communications screen to either GPIB or RS232. CAUTION: If the same port is selected for both Remote Control and Hardcopy, when the hardcopy key is pressed, no plot is produced and only the User Request (URQ) bit in the Standard Event Status register (

21、ESR) is saL This is so the Remote Controller can synchronously initiate the hardcopy remotely once all the connected devices are properly set up. If a Remote Controller is not used, then the Remote Control from field in the Communications Setup screen must be set to a port that is different from the

22、 Hardcopy Port in order to enable the hardcopy key. Setting the GPIR Address The GPIB address is set in the Communications Setup screen. From the Main Screen, press the Configure System softkey to display the Configure System setup screen. Then press the Communication Setup softkey to display the Co

23、mmunications Setup screen. Move the box 2-2 GPIB Host and Hardcopy Operation onto the =Remote Contol from field and select GPIB. Then move the box onto the =GPIB Ad- dress field and select an address from 0 to 30. Note that these controls are preserved in bat- tery backed up memory and are NOT reset

24、 by pressing the Default Settings softkey. GPIB Host and Hardcopy Operation The 7200A can communicate across GPIB as a talker or a listener with a remote host con- troller to receive remote commands/queries and send responses. Alternately, it can operate over GPIB with a controller as a Talk Only de

25、vice. The use of each of these modes is de- scribed below. Remote Control Operation over GPIB The 7200A enters Talk/Listen mode when the =Remote Control from field in the Communica- tions Setup screen is set to GPIB. In this mode, the 7200A can both receive commands and setups from the remote host c

26、omputer and send data and measurement results. Plotting/Printing over GPIB with a Controller If the HARDCOPY command is sent to the 7200A when in this mode, the 7200A will wait to be addressed to talk before sending the hardcopy data. The host computer then has three options in generating the hardco

27、py: 1) The host computer may read the data into internal memory and then send the data to a printer/plotter. This is exactly the same as reading a query response. 2) The host computer may send the =HARDCOPY remote com- mand and then address the printer/plotter to listen and the 7200A to talk and rea

28、d the data from the 7200A. As the data is read into the computers internal memory, it is also printed/plot- ted to the printer/plotter which is a Listener. 3) The host computer may send the =HARDCOPY remote com- mand and then address the printer/plotter to listen, the 7200A to talk, and the controll

29、er to go into stand-by mode waiting for EOI. Altematively, the Data Processing Status Register (DPR) could be programmed to issue an SRQ when hardcopy is complete so that the host computer can perform other tasks while the hard- copy is performed. If the local HARDCOPY key is pressed when both the R

30、emote Control port and the Hardcopy port are set to GPIB, then a hard- copy is not generated. This is so the hardcopy data does not dis- 2-3 GPIB Host and Hardcopy Operation rupt controller activity on the GPIB bus. Instead, pressing the HARDCOPY key sets the User Request (URQ) bit in the Stand- ard

31、 Event Status register (*ESR). The Remote Controller can monitor this bit and when it is set, it can initiate the hardcopy re- motely In one of the three ways discussed previously. Printing/Plotting over GPIB without a Controller To output hardcopy data over GPIB, the Hardcopy Port field in the Hard

32、copy screen must be set to GPIB and the Remote Control port must be RS-232-C. Talk Only is a special GPIB mode where there is no controller allowed on the bus; the 7200A is the only talker and all connected devices must be listeners (ie., printers/plotters must be in Listen Only mode). Note: Since s

33、ome printers/plotters do not properly enter Listen Only mode, the 7200A will address the device at address 30 to listen before sending the hardcopy data. ff your GPIB printer/p/offer does not work with the 7200A, set Its GPIB address to 30 and the 7200A will force/t to listen. 2.4 GPIB Interconnecti

34、on The devices on the GPIB network can be connected in any combination of star or linear ar- rangements. Standard IEEE 488.2 cables must be used to connect all the devices and total length must not exceed 20 meters. Attach the 7200As rear panel connector to the network using the cable provided with the 7200A. The devices must conform to these rules: At least half of the devices on the network must be turned on. One network can connect no more than 15 devices (including the controller). One device must be connected for every two meters of cable, assuming one device represents one s