Related Manuals for Trio CS-1566A
Summary of Contents for Trio CS-1566A
- Page 1 TRIGGERED SWEEP OSCILLOSCOPE HIGH S T A B I L I T Y CS-1566A DUAL T R A C E O S C I L L O S C O P E INSTRUCTION MANUAL T R I O...
- Page 2 FEATURES Vertical axis with wide bandwidth (20 MHz, — 3 A L T and C H O P operations dual-trace dB) and high sensitivity (5 mV/div, 1 div = 1 observation. cm). The time base switch allows changeover Distortion-free display of signals up to 2 0 MHz between V (vertical) and H (horizontal) of VIDEO on the full area of C R T screen.
- Page 3 SPECIFICATIONS Magnification: Cathode Ray Tube 10 times ± 5 % ( P U L L x 10 MAG) . Type: Linearity: C 5 S 1 0 6 P 3 1 B Better than 3 % (2 /zs/div to 0.5s/div) Acceleration voltage: Better than 5 % (0.5 ^s/div to 1 ^ s / d i v ) 2 kV Better than 1 0 % ( x 10 M A G )
- Page 4 Dimensions Calibrating Voltage 0.1V ± 3 % (at reference level OV) W i d t h . 1 kHz ± 3 % (square wave, positive) 2 6 0 mm (277 mm) Intensity Modulation Height: 1 9 0 mm ( 2 0 4 mm) Input voltage: Depth: T T L level...
- Page 5 C O N T R O L S ON P A N E L S F R O N T P A N E L Fig. 1 R E A R P A N E L Fig. 2...
- Page 6 A D D : The waveforms from Channel 1 and FRONT P A N E L 1. ^ Channel 2 inputs are added and the sum is P O S I T I O N displayed as a single trace. When the Vertical position adjustment for Channel 1 trace.
- Page 7 15. F O C U S V I D E O : In the V I D E O positions, the sync pulses of a composite video signal are used to Spot focus control to obtain optimum waveform trigger the sweep; the vertical sync pulses according to brightness.
- Page 8 24. GND POWER CONNECTOR Ground terminal for the oscilloscope. For connection of the supplied A C power cord. 2 5 . T R A C E R O T A T I O N 30. Z A X I S INPUT Used to adjust the position of horizontal trace.
- Page 9 O P E R A T I N G P R O C E D U R E S Use either method for easier observation. At A D D position, algebraic sum of CH1 and 1. Select the position of the power voltage selec- CH2 is obtained.
- Page 10 A P P L I C A T I O N S D U A L - T R A C E A P P L I C A T I O N S reference or clock pulse train. Fig. B and Fig. C in- dicate the possible outputs of the divide-by-two cir- Introduction: cuitry.
- Page 11 Tp can be measured. A more precise measurement can be obtained if the Tp portion of the waveform is REFERENCE FREQUENCY PULSE TRAIN expanded horizontally. This may be done by pulling (1000 PULSES PER SECOND) the X 1 0 M A G control. It also may be possible to view the desired portion of the waveform at a faster IDEAL DIVIDE BY EIGHT OUTPUT sweep speed.
- Page 12 In such cases, it is recommended that the sync re- M A G used be to expaned the waveform display. main unchanged while the sweep speed or X 1 0 Fig. 8 Typical digital circuit using several time-related w a v e f o r m s...
- Page 13 A N Y I N D I V I D U A L A D D R E S S O R F U N C T I O N D A T A B I T M A Y B E P O S I T I V E O R N E G A T I V E D E P E N D I N G...
- Page 14 1. Apply the type of signal normally encountered in the amplifier under test. 2. Connect CH1 probe to the input of the amplifier and CH2 probe to the output of the amplifier. It is preferable if the two signals are not inverted in relationships to each other, but inverted signals can be used.
- Page 15 pulse of the composite video signal for reference. characteristics of the line, the output waveform The indicated delay is approximately one microse- reveals any distortion that may be introduced from cond. The delay is approximately one microse- an impedance mismatch or greatly attenuated out- cond.
- Page 16 waveform of 2 div amplitude as shown in Fig. corresponding to the undesired 50 Hz component. 15B. The CH2 POSITION control is then adjusted The C H 2 display indicates a waveform of equal amplitude and identical phase to the average of the so that the CH2 waveform is displayed on the same CH1 waveform.
- Page 17 nal retrace blanking circuits, the blanking circuit loscope control setting for viewing the alternate must be disabled to see the VITS). V I T S . The transmitted V I T S is precision sequence of a Most network television signals contain a built-in specific frequences, amplitudes and waveshapes as test signal (the VITS) that can be a very valuable shown in Fig.
- Page 18 This multi-burst portion of the V I T S is the portion that can be most valuable to the technician. The second line of Field 1 and the second line of Field 2 (lines 18 and 2 8 0 ) may contain the sine-squared pulse, window pulse and the staircase of 3.58 MHz burst at progressively lighter shading.
- Page 19 V I D E O S T A R T W I T H 2 M S / d i v V E R T I C A L V E R T I C A L S Y N C . B L A N k l N G P U L S E P I C T U R E...
- Page 20 S I N G L E - C H A N N E L APPLICATIONS abnormal readings should be followed by additional readings in the suspected circuits until the trouble introduction. is isolated to as small an area as possible. In addition to the dual-trace applications previously outlined, there are, of course, many servicing and Composite Video W a v e f o r m A n a l y s i s...
- Page 21 VIDEO B U R S T I 0 . « 3 HORIZONTAL HORIZONTAL BLANKING SYNC PULSE PULSE VIDEO VIDEO P I C T U R E VIDEO A M P *AMP DETECTOR T U B E j SOUND TELEVISION S E T C O L O R Fig.
- Page 22 Sync Pulse Analysis: The IF amplifier response of a television receiver can be evaluated to some extent by careful N O R M A L S Y N C P U L S E observation of the horizontal sync pulse waveform. The appearance of the sync pulse waveform is affected by the...
- Page 23 X - Y SWEEP GENERATOR MARKER M A R K E R S W E E P HORIZONTAL VERTICAL GENERATOR INPUT R F OUT V O L T A G E SIZE SIZE . D I R E C T DEMODUL AMPS AUDIO...
- Page 24 1. Using an audio signal generator with a pure si- The input and output test connections to the nusoidal signal, apply a sine wave test signal at vertical and horizontal oscilloscope inputs may desired test frequency audio be reversed.) network being tested. 6.
- Page 25 controlled signal with which w e can evaluate the A M P L I F I E R S Q U A R E W A V E T E S T input and output quality of a signal of many introduction: frequencies (the harmoniques of the square wave A square w a v e generator and the oscilloscope,...
- Page 26 Testing Procedure (refer to Fig. 28): 1. Connect the output of the square wave generator to the input of the amplifier being tested. 2. Connect the C H 2 probe of the oscilloscope to the output of the amplifier being tested. 3.
- Page 27 Hz to 1 kHz) response to a flattening out from beyond 1 0 0 0 and 4 0 0 0 Hz. Therefore, w e can expect that the higher frequency components in the 100 Hz square wave will be relatively normal in amplitude and phase but that the low-frequency components "...
- Page 28 F X 3 OUT OF PHASE (LEAD) Fig. 36 Low frequency component loss and phase shift Fig. 3 3 S q u a r e w a v e tilt resulting from 3rd harmonic phase shift Fig. 37 indicated high-frequency boost in an amplifier accompanied by a lightly damped "shock"...
- Page 29 Fig. 3 8 Effect of high-frequency boost and good damping A . F r e q u e n c y d i s t o r t i o n , (amplitude B. L o w - f r e q u e n c y boost High-frequency loss —...
- Page 30 P R E C A U T I O N S 1. Do not use the unit in any of the following 7. Installation of oscilloscope locations: Pull the stand in the "arrow" direction until it * Places where the unit is exposed to direct locks.
- Page 31 5. If special test instruments are required for ad- on the C R T scale. justments, contact your local Trio's service station. C R T Centering A d j u s t m e n t 1.
- Page 32 V A R I A B L E D C B A L ADjustment Horizontal Position Adjustment Adjust V R 1 0 3 (VR1 13 for CH2) so that the trace 1. To adjust the horizontal position under the nor- stays still when the V A R I A B L E of V O L T / D I V is mal sweep condition, set the POSITION to...
- Page 33 CS-1566A S C H E M A T I C DIAGRAM...
- Page 34 A p r o d u c t o f 17-5, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan © 2 5 3 1 2 P R I N T E D IN J A P A N B50-2918-00 (G)