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Trio MS-1650B Instruction Manual

Digital memory oscilloscope
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M S - 1 6 5 0 B
DIGITAL MEMORY OSCILLOSCOPE
INSTRUCTION MANUAL
T R I O

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Summary of Contents for Trio MS-1650B

  • Page 1 M S - 1 6 5 0 B DIGITAL MEMORY OSCILLOSCOPE INSTRUCTION MANUAL T R I O...

  • Page 2: Table Of Contents

    F E A T U R E S This instrument is a combination of an oscilloscope having a frequency band of D C - 1 0 MHz and a digital memory having memory ability of 8 b i t s x 1 0 2 4 words and write speed up to 1 /is/word. Input signal can be stored in the memory so that memory signal is displayed on the C R T at any time.

  • Page 3: S P E C I F I C A T I O N S

    S P E C I F I C A T I O N S Cathode R a y T u b e P o l a r i t y T y p e P o s i t i v e a n d n e g a t i v e E 2 7 1 3 B 3 1 A S y n c v o l t a g e A c c e l e r a t i o n v o l t a g e...
  • Page 4 S P E C I F I C A T I O N S F r e q u e n c y r e s p o n s e : D C — a p p r o x . 1 M H z Signal Output ( - 3 d B ) , S m o o t h e r ;...

  • Page 5: C O N T R O L S On Panels

    C O N T R O L S ON PANELS C O N T R O L S O N F R O N T P A N E L 1 . P O W E R / S C A L E I L L U M 7 .
  • Page 6 C O N T R O L S ON PANELS 1 6 . S T A R T 1 1 . M E M O R Y P O S I T I O N , P U S H M E M O R Y F R E E Z E A pushbutton s w i t c h to write input signal in memory.
  • Page 7 C O N T R O L S ON PANELS 25. SOURCE 29. EXT TRIG Sync source voltage selector switch for three functions, Input terminal for external trigger signal. External trig- INT (internal sync), LINE ( 5 0 / 6 0 Hz sync) and E X T (exter- ger signal (1 Vp-p or higher) should be applied with nal sync).

  • Page 8: R E A R P A N E L

    C O N T R O L S ON PANELS C O N T R O L S ON R E A R P A N E L 3 3 . S W E E P G A T E O U T 4 1 .

  • Page 9: Operation

    OPERATION OSCILLOSCOPE OPERATION DIGITAL MEMORY OPERATION Refer to the previous section "Controls on P a n e l s " . Before Set the s w i t c h e s and controls as follows before using the operating the oscilloscope, set the switches and controls digital memory: as follows: Other knobs and controls are the same in function as those...

  • Page 10: D E L A Y S E T T I N

    OPERATION — DELAY Setting With conventional oscilloscopes, it is not possible to When a trigger point indicated by the setting T R I G G E R observe a trace before triggering signal is developed. POINT switch (17) appears on the scale, the oscilloscope This oscilloscope has "...
  • Page 11 OPERATION C 1 0 m s / w o r d 1 0 m s ^ 2 0 m s / w o r d C o n t r o l b o a r d l ^ 5 0 m s / w o r d C100 m s /...
  • Page 12 APPLICATIONS Application to Electric Circuit Measurement of relay APPLICATIONS OF DIGITAL MEMORY SCOPE chattering This instrument has a digital memory function to analyze various waveforms which is not possible with conventional The operating method is the same as noted in the previous section.
  • Page 13 A P P L I C A T I O N S Readout from external CLOCK APPLICATIONS OF OSCILLOSCOPE OPERATING Phase Measurement When the scope is operated with external C L O C K , it func- tions only as a readout scope and does not function as a Phase measurements may be made with an oscilloscope.
  • Page 14 A P P L I C A T I O N S 1 . Using an audio signal generator with a pure sinusoidal signal, apply a sine w a v e test signal to the audio net- work being tested. 2 .
  • Page 15 APPLICATIONS Amplifier Square Wave Test low frequencies. Because of the harmonic content of the square w a v e , distortion will occur before the upper end of Introduction the amplifier bandpass. A square w a v e generator and the oscilloscope can be used It should be noted that the actual response check of an to observe various types of distortion present in electric cir- amplifier should be made using a sine w a v e signal.
  • Page 16 APPLICATIONS Analysing the Waveforms: The short rise time which occurs at the beginning of the half-cycle is created by the in-phase sum of the medium high frequency sine w a v e components. T h e same holds true for the drop time. T h e reduction in high frequen- cy components should produce a rounding of the square corners at all four points of one square w a v e cycle (see Fig.
  • Page 17 A P P L I C A T I O N S Now, the region between 1 0 0 Hz and 4 0 0 Hz in Fig. 1 3 s h o w s a rise from poor low-frequency ( 1 0 0 0 Hz to 1 kHz) response to a flattening out from beyond 1 0 0 0 and 4 0 0 0 Hz.
  • Page 18 APPLICATIONS F x 1 OUT OF PHASE (LAG) Fig. 18 Tilt resulting from a phase shift of funda- mental frequency in a lagging direction Fig. 20. Effect of high-frequency boost and poor damping Fig. 19. Low frequency component loss and phase shift Fig.

  • Page 19: P R E C A U T I O

    A P P L I C A T I O N S A . Frequency distortion (amplitude reduc- B . L o w - f r e q u e n c y boost (accentuated fun- C . High-frequency loss — No phase shift. tion of low-frequency component).

  • Page 20: M A I N T E N A N C E A N D A D J U S T M E N

    P R E C A U T I O N S 1 . Do not expose the unit to direct sunlight. 7. T o prevent electrical shocks, be sure to connect the 2 . Install the unit in a cool, dust-free place. GND ( on the front panel) to an appropiate earth point.
  • Page 21 MAINTENANCE AND A D J U S T M E N T Vertical Attenuator Adjustment (VOLTS/DIV) 2 . DC B A L (2) adjustment (1) Using square w a v e generator, apply 1kHz If the trace moves up or down at particular ranges when 0 .
  • Page 22 OPTION C O M B I N A T I O N M S - 1 6 5 0 B T O M U - 1 6 5 1 W I T H J O I N E R ( C Z - 8 4 ) Joiner C Z - 8 4 M S - 1 6 5 0 B...
  • Page 23 A p r o d u c t o f T R I O - K E N W O O D C O R P O R A T I O N 17-5, 2-chome,,- Shibuya, Shibuya-ku, Tokyo 150, Japan ©...

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