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Kenwood CS-5140 Instruction Manual

40mhz dual trace oscilloscope
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40MHz DUAL T R A C E OSCILLOSCOPE
CS-5140
INSTRUCTION MANUAL
K E N W O O D C O R P O R A T I O N
©PRINTED IN JAPAN B50-7622-20(M)(T)
91/12 1110 9 8 7 6 5 4 3 2 1
90/12 1110 9 8 7 6 5 4 3 2

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  • Page 1 40MHz DUAL T R A C E OSCILLOSCOPE CS-5140 INSTRUCTION MANUAL K E N W O O D C O R P O R A T I O N ©PRINTED IN JAPAN B50-7622-20(M)(T) 91/12 1110 9 8 7 6 5 4 3 2 1...

  • Page 2: Table Of Contents

    SAFETY Symbol in This Manual Use the Proper Power Cord This symbol indicates where applicable cautionary or Use only the power cord and connector specified for your ZIX other imformation is to be found. product. Power Source Use the Proper Fuse This equipment operates from a power source that does To avoid fire hazard, use a fuse of the correct type.

  • Page 3: Features

    FEATURES C S - 5 1 4 0 is an oscilloscope incorporating 4 0 MHz 8. Trace rotation is electrically adjustable from the front real-time oscilloscope functions and a sampling function panel. for the bandwidth of 1 0 0 MHz (with automatic sweep 9.

  • Page 4: Specifications

    SPECIFICATIONS 1 5 0 mm rectangular with internal graticule C R T 12 kV Acceleration Voltage 8 x 1 0 div (1 div = 10 mm) Display Area V E R T I C A L A X I S (CH1 and C H 2 ) 1 mV/div to 5 V/div, ±...
  • Page 5 x 10 (ten times) ± 5 % S w e e p Magnification ± 3 % ( x 10 M A G , 0 . 2 / i S ~ 1 0 jis, ± 5 % ) Linearity Adjustable by the controller HOLD O F F T R I G G E R I N G Triggered by C H 1 signal...
  • Page 6 T R A C E R O T A T I O N (Electrical, adjustable from front panel) POWER REQUIREMENT Line Voltage 1 0 0 V / 1 2 0 V / 2 2 0 V / 2 4 0 V A C + 1 0 % Line Frequency 5 0 / 6 0 Hz...

  • Page 7: Precautions

    If this happens, the 4 . Do not increase the intensity more than required. incorporated battery must be replaced with a new one. Please contact your dealer or Kenwood service agent for assistance.

  • Page 8: Controls And Indicators

    CONTROLS AND INDICATORS Fig. 2 FRONT PANEL CH1 INPUT Jack © CH1 $ POSITION Vertical input for channel 1 trace in normal sweep Rotation adjusts vertical position of CH1 waveform on operation. Vertical input for X - Y operation. the screen. In X - Y operation, this control adjusts Y axis position.
  • Page 9 Input terminal for external trigger signal. (Q) MODE When S O U R C E s w i t c h is selected in E X T position, the Selects the basic operating modes of the oscilloscope. input signal at the E X T T R I G INPUT jack becomes the C H 1 : Only the input signal to channel 1 is trigger.
  • Page 10 Fig. 3 (§) S W E E P V A R I A B L E Control the cursor measurement. By rotating the controller This is the s w e e p rate fine-adjustment control, which clockwise, the cursor line moves upward or rightward: a l l o w s c o n t i n u o u s v a r i a t i o n...
  • Page 11 AV2: 1/AT: T w o vertical cursor lines are displayed on the T w o horizontal cursor lines are displayed on the C R T , and frequency and phase difference bet- C R T , and voltage difference and voltage ratio ween them are displayed in the upper right on between them are displayed in the upper right the C R T posterior to the cursor measurement...

  • Page 12: Rear Panel 1

    Fig. 4 REAR PANEL (§) Z AXIS INPUT External intensity modulation input; T T L compatible. Positive voltage increases brightness, negative voltage decreases brightness. (§) Fuse Holder, Line Voltage Selector Contains the line fuse. Verify that the proper fuse is in- stalled when replacing the line fuse.

  • Page 13: D I R E C T I O N S F O R U S

    DIRECTIONS FOR USE READOUT DISPLAY CD POSITIONS OF T H E DISPLAY Displays the calendar, scale factors, cursor m e a s u r e m e n t d a t a , e t c . t h e f o l l o w i n g positions on the C R T .

  • Page 14: O P E R A T I O

    OPERATION INITIAL STARTING PROCED refer to the item " F r o n t P a n e l " . In the case of using a pro- be, refer to the Operation Manual attached to the probe a s Prior to turning the power ON, set the switches as in the well as the application example "...
  • Page 15 • External S y n c When the S O U R C E selection is in E X T , the input signal at the E X T . T R I G INPUT (§) jack becomes the trigger. This signal must have a time or frequency relationship to the signal being observed to synchronize the display.

  • Page 16: Sweep Magnification Operation 1

    C R T display [B] EQUIVALENT SAMPLING The equivalent sampling mode is activated automatically when the S W E E P T I M E / D I V control ' f | is set to the range between 0 . 1 /xs/div and 1 0 /*s/div. When the mode is swtiched from the real-time mode to equivalent sampling mode, the bandwidth...

  • Page 17: C ] Readout Operation 1

    In the case shown in Fig. 1 0 , the sampling pulse is [ C ] READOUT OPERATION generated with a certain delay with respect to the input 1 C R T surface readout signal, and the signal held by this sampling pulse becomes rotating the INTEN (READOUT)

  • Page 18: A P P L I C A T I O

    APPLICATIONS 3 . Set the A C - G N D - D C s w i t c h to the D C position to PROBE COMPENSATION observe the input waveform, including its D C compo- For accurate measurement, perform appropriate probe cor- nent.

  • Page 19: Measurements Of The V O L T A G Ebetween T W O Points On A Waveform

    12! Cursor measurement When a 1 0 : 1 probe is used. Volts peak-to-peak 1) Make the GND luminescent line be displayed by means = Vertical distance (div) x ( V O L T S / D I V setting) x 10 of ordinary procedures 1) and 2 ) .

  • Page 20: Elimination Of Undesired Signal

    3. ELIMINATION OF UNDESIRED SIGNAL COMPONENTS The A D D feature can be conveniently used to cancel out effect an undesired signal component which superimposed on the signal you w i s h to observe. Procedure: 1 . Apply the signal containing an undesired component to the C H 1 INPUT jack and the undesired signal itself alone to the C H 2 INPUT jack.

  • Page 21: Time Measurements 2

    5. TIME M E A S U R E M E N T S (2) Cursor measurement 1. In the same w a y as the ordinary measurement, adjust (1) Ordinary measurement the waveform to be measured to an easy-to-observe point.

  • Page 22: Pulse Width Measurements . 2

    7. PULSE WIDTH MEASUREMENTS [ E X A M P L E ] For the example, when the horizontal distance between t w o signals is 4 . 4 divisions. T h e S W E E P T I M E / D I V is (1) Ordinary measurement 0 .

  • Page 23: Pulse Rise Time And Falltime ~ Measurements 2

    (21 Cursor measurement NOTE: T h e graticule on the C R T includes the 0 , 1 0 , 9 0 , and 1 0 0 % lines assuming that 5 divisions corres- 1 . In the same w a y as the ordinary measurement, adjust pond to 1 0 0 % .

  • Page 24: Phase Difference Measurements 2

    PHASE DIFFERENCE M E A S U R E M E N T S (1) Ordinary measurement - Adjust 9 0 % point to the center and measure D Phase difference between t w o sine w a v e s of the same fre- quency, etc.

  • Page 25: Time Ratio Measurement Using Cursors . 2

    Phase difference = Horizontal distance of new sweep range ( d i v ) x 4 5 ° / d i v Measured value - New S W E E P TIME/DIV setting — Original S W E E P TIME/DSV setting Another simple method of obtaining more accuracy quickly is to simply use x 10 M A G for a scale of 4 .

  • Page 26: 1 . Frequency Measurements 2

    1 1 . FREQUENCY MEASUREMENTS Using the formula: Frequency measurements are made by measuring the # of c y c l e s x " x 10 M A G " value period of one cycle of waveform and taking the reciprocal Freq= Horizontal distance (div) x S W E E P T I M E / D I V setting of this time value a s the frequency.

  • Page 27: Relative Measurements

    Measured value Reference signal Adjusted reference signal REF cursor cursor Unknown signal Fig. 3 5 1 2 . RELATIVE MEASUREMENTS If the frequency and amplitude of some reference signal are known, an unknown signal may be measured for level and frequency without use of the V O L T S / D I V or S W E E P...

  • Page 28: Application Of X-Y Operation

    2. The S w e e p (horizontal) calibration coefficient is then [ E X A M P L E ] the period of the reference signal divided by the product S W E E P TIME/DIV is 0.1 ms/div apply 1.75 kHz reference signal.

  • Page 29: Application A S An Equivalent-Sampling Oscilloscope

    1 4 . APPLICATION A S A N EQUIVALENT SAMPLING OSCILLOSCOPE The equivalent sampling allows the observation of high- frequency signals that cannot be observed with low- SINE <t>= — bandwidth scopes, square w a v e s with fast rise, etc. Where <t>...
  • Page 30 12) Pulse rise (fall) time measurement Measuring procedure The rise (fall) time can be obtained by measuring the time between the 1 0 % and 9 0 % of the peak value. 1) Connect the signal to be measured to the INPUT ter- minal, set the vertical MODE switch to the channel us- ed, and adjust the V O L T S / D I V .

  • Page 31: M A I N T E N A N C

    M A I N T E N A N C E REPLACING T H E F U S E CHANGING THE SUPPLY VOLTAGE In case the fuse has blown, locate the cause. If the fuse Remove the fuse holder in the rear panel using a standard itself is the cause, replace it as follows: screwdriver.

  • Page 32: Resetting The Readout Calender And Clock Display 3

    RESETTING T H E READOUT CALENDAR AND C L O C K DISPLAY The readout calendar and clock display can be changed and reset with the D A T E change switch located on the right end of the rear side on the bottom. (This can be performed without removing the case.) Bottom of the case Fig.

  • Page 33: A C C E S S O R I E

    ACCESSORIES OPTIONAL A C C E S S O R I E S S T A N D A R D A C C E S S O R I E S INCLUDED Probe (PC-31) 2 pes. Probe Pouch (MC-78) Instruction Manual..
  • Page 34 MEMO...
  • Page 35 MEMO...
  • Page 36 A product of K E N W O O D CORPORATION 17-5, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan...

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