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Summary of Contents for Matrix 620B
- Page 1 Oscilloscope USER MANUAL Dual Trace Oscilloscope Members Of The Family ⅰ...
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Page 2: Table Of Contents
CONTENTS PAGE ┈ ┈ ┈ ┈ ┈┈ ┈ ┈ ┈ ┈ ┈ ┈ ┈ ┈┈ ┈ ┈ ┈ ┈ ┈ ┈ ┈ ┈ ┈ ┈ ┈ ┈ ┈ ┈ ┈ ┈ ┈┈ ┈ ┈ ┈ ┈ ┈ ┈ ┈ ┈ ┈ ┈ ┈ 1.GENERAL ┈... -
Page 3: General
2.TECHNICAL SPECIFICATIONS Table one 2 0MHz OSCIL LOSCOPE 40M Hz /50 MHz OSCILL OSCO PE MODEL 620B /5620NF/620B F/620 R 64 0B/65 0B/640 BF/65 0BF/64 0R/650 R SPECIFICATIONS Sensitivity 5mV~20V/D IV,12steps in 1 -2-5sequence (5620NF: 5m V-5V/DIV, 10steps in 1-2-5sequence) ≤... - Page 4 (Table one continue) 20MHz OSCILLOSCOPE 40MHz/50MHz OSCILLOSCOPE MODEL 620B/5620NF/620BF/620R 640B/650B/640BF/650BF/640R/650R SPECIFICATIONS C H1,CH 2,LINE,EXT( CHl an d CH2 can be selected only when the ver tical m ode is DUAL or ADD . Triggering source In ALT mode,if the TRIG.ALT switch is pushed i n,it can be use for alternate tiggering of two d ifferent source.
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Page 5: Precautions Before Operating The Oscilloscope
Cursor measurement system 620R/640R/650R Cursor measurement V. 1/ T. T P(t,V) Function Cursor resolution 1/25 DIV CURSOR ± Effect ive cursor Vertical: 3div READOUT ± Range Horizontal: 4div FUNCTION Vertical:V/DIV,AC/DC/GND,CH1,CH2, Panel setting INV,ALT,CHOP, ADD Horizontal:TIME/DIV,x10MAG Tri gger:Source, Slope,AUTO,NORM,TV-V/TV-H Others:probe(x1/x10),X-Y Operating Environment Accessories Line Power Requirements ±... -
Page 6: Environment
3.3 E nvi ronment The normal ambient temperature range of this instrument is 0 to 40 C(32 to 104 F).Operation of the instrument above this temperature range m ay cause damage to the circuits. Do not use the instrument in a place where strong magnetic or electric field exists, such fields may dist urb the measurement. 3.4 E quipment I nstallation, and Operation Ensure there is proper ventilation for the hole vents in the oscilloscope case. - Page 7 Figure 4-2 620B/640B/650B/5620NF/620BF/640BF/650BF Front Panel 28 27 OSC ILL OS COP E T RIGGER HORIZONTAL SO URC E M OD E T R IG . A LT M H z 8 8 8 8 8 8 C H 1 AU TO...
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Page 8: Operation Method
4.OPERATION METHOD 4.1 Introduction of Front Panel CRT:. POWER.......(7) Main power switch of the instrument.When this switch is turned on,the LED (6)is also turned on. INTEN.........(2) Controls the brightness of the spot or trace. FOCUS........(3) For focusing the trace to the sharpest image. TRACE ROTATION....(4) Semi-fixed potentiometer for aligning the horizontal trace in parallel with graticule lines. - Page 9 Triggering: EXT TRIG IN input terminal....(24) Input terminal is used for external t riggering signal.To use this term inal,set SOURCE switch(23)to the E XT position. SOURCE....(23) Select t he internal triggering source signal,and t he EXT TRIG IN input signal. CH l:When the VERT MODE switch (14)is set in the DUAL or ADD state,select CHl for the int ernal triggering source signal.
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Page 10: Basic Operation-Singl E Channel Operation
Others CAL....(1) This terminal delivers the calibration voltage of 2 V p-p, approx lkHz, positive square wave. GND ....(15) Ground terminal of oscilloscope mainframe. FAMILY..(45) D isplay a synchroni nzed signal frequency (models have this function only) 4.2 Introduction of Rear Panel Z AXIS IN PUT .... -
Page 11: Dual-Channel Operation
3)Align the trace with the horizontal center line of the grati cule by adjust ing the CH 1 POSITION control and TRA CE ROTATION control (adjustable by screwdriver). 4)C onnect the probe t o the CH1INPUT terminal and apply the 2Vp-p CALIBRATOR signal to the probe tip. 5)Set the AC-GND DC switch to the AC state.A w aveform as shown in the figure 4 4 Will be displayed on the CRT screen. - Page 12 This Trigger level lock function is effective when the signal amplitude on the screen or the input voltage of the external triggeri ng signal is with in the following range: 620B/5620NF/620BF/620R: 640B/650B/640BF/650BF/640R/650R: ≥ ≥...
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Page 13: Time/Div Control
(4)Function of TRIG ALT switch: The TRIG A LT switch is used to select alternate triggering and alternat e display when the DUAL-trace VERT MODE is Selected (the switch has on effect in the CH1,CH2,or ADD m odes).In the alternate triggering mode (when dual-trace operati on is selected),the trigger source alternat es between channel l and channel 2 with each sweep.This is convenient for checking amplitudes,wave shape,or waveform period measurements,and even permits si mult aneous observation of t wo waveform s which are not related in frequency or period.However,this sett ing is not suit able for phase or timing com pari son measurements.For such... -
Page 14: Calibration Of Probe
4.10 Calibration of Probe As explained previously,the probe makes up a wide range attenuator.Unless phase compensation is properly done, the displayed waveform is distorted causing measurement errors.Therefore,the probe must be properly compensated before use. Connect the l0:l probe BNC to the INPUT terminal of CH1 or Ch2 and set VOLTS/DIV switch at 50mV .Connect the probe tip to the calibration voltage output terminal and adjust the compensation trimmer on probe for optimum square wave (minimum overshoot,rounding off and tilt). -
Page 15: Cursor Measurement
5)REA DOUT INTE N:This control knob is used for a djus ting the reado ut intensity. 5.2.Cursor measurement Locat ion of Readou t paramet ers a nd display information is il lustr ated as be low: measurement Tri gger source SLOPE parameters : ⊿... - Page 16 d.Tuning PUSH-TRA CK knob to place curs or 2 t o the end point of waveform. read the V valu e displayed on CRT. e.Push PUSH-TRAC K ag ain to se lect cursorl and cursor 2(B oth of them m arked by )tuning P USH-TR ACK kn ob Pl ace t wo cursor to t he area where you want measure the Voltage difference.
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Page 17: Maintenance
5.2.4 Frequency measurement 620R/640R/650R has built in frequency account,it can read fre quency directly.The value of f requency displayed i n the corner. bottom-right “ ” 1.I n case of confused result s,set TR IG ALT (27)at o ut posi tion. 2.Single Channel: Set the Vert MODE (14) to CH1 or CH2,then set Tri gger source(23) to the re lated position.Tuning Trigger Level knob until one stable and synchronized waveform displ ayed on the scre en,t hen the frequency value of fl or f2 that appeared on the... -
Page 18: Block Diagram
7.BLOCK DIAGRAM 6 20B CH1SI GNAL 6 20R CH1(X ) ONTPUT + 12KV INPUT CH 1 CH 1 ATT PREAMP CH 1 TRIG(X-AXIS) VERTICAL VERT VERTIC AL PICKUP AMP SIGNAL MODE SW ITCH O UTPUT A MP CH2(Y) INPUT CH 2 SWITCHING Z-AXIS CH 2 ATT...
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