BK PRECISION_1541D_manual 电路图.pdf

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1、INSTRUCTION MANUAL MANUAL DE INSTRUCCION MODELS 1541D and 2160A MODELOS 1541D make certain such surfaces are not damp or wet. 4.Use the time-proven “one hand in the pocket” technique while handling an instrument probe. Be particularly careful to avoid contacting a nearby metal object that could prov

2、ide a good ground return path. 5.When using a probe, touch only the insulated portion. Never touch the exposed tip portion. 6.When testing ac powered equipment, remember that acline voltage is usuallypresenton some power input circuits such as the on-off switch, fuses, power transformer, etc. any ti

3、me the equipment is connected to an ac outlet, even if the equipment is turned off. 7.Some equipment with a two-wire ac power cord, including some with polarized power plugs, is the “hot chassis” type. This includes most recent television receivers and audio equipment. A plastic or wooden cabinet in

4、sulates the chassis toprotectthecustomer.Whenthecabinetisremovedforservicing,aseriousshockhazardexistsifthechassisistouched. Not only does this present a dangerous shock hazard, but damage to test instruments or the equipment under test may resultfrom connectingthe ground leadofmosttestinstruments(i

5、ncluding this oscilloscope) to a “hot chassis”.To make measurements in “hot chassis” equipment, always connect an isolation transformer between the ac outlet and the equipment under test. The B+K Precision Model TR-110 or 1604A Isolation Transformer, or Model 1653A or 1655A AC Power Supply is suitab

6、le for most applications. To be on the safe side, treat all two wire ac powered equipment as “hot chassis” unless you are sure it has an isolated chassis or an earth ground chassis. 8.Never work alone. Someone should be nearby to render aid if necessary. Training in CPR (cardio-pulmonary resuscitati

7、on) first aid is highly recommended. RadioFans.CN 收音机爱 好者资料库 This symbol on oscilloscope means “refer to instruction manual for further precautionary information”. This symbol appears in the manual where the corresponding information is given. Instruction Manual for Models 1541D and 2160A 40 MHz and

8、 60 MHz Dual-Trace Oscilloscopes 2000 B+K Precision Corp. + BK PRECISION + + RadioFans.CN 收音机爱 好者资料库 22820 Savi Ranch Parkway, Yorba Linda, CA 92887 TABLE OF CONTENTS PagePage TEST INSTRUMENT SAFETY . . . . . . inside front cover FEATURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9、. . . . . 3 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 CONTROLS AND INDICATORS . . . . . . . . . . . . . . . . . . 7 General Function Controls. . . . . . . . . . . . . . . . . . . . . . 7 Vertical Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

10、 Horizontal Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Triggering Controls . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Rear Panel Controls . . . . . . . . . . . . . . . . . . . . . . . . . . 10 OPERATING INSTRUCTIONS. . . . . . . . . . . . . . . . . . . 11 Safety Pre

11、cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Equipment Protection Precautions. . . . . . . . . . . . . . . 11 Operating Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Initial Starting Procedure . . . . . . . . . . . . . . . . . . . . . . 12 Single Trace Disp

12、lay . . . . . . . . . . . . . . . . . . . . . . . . . 12 Dual Trace Display. . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Triggering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Magnified Sweep Operation . . . . . . . . . . . . . . . . . . . 15 OPERATING INSTRUCTIO

13、NS (Continued) XY Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Video Signal Observation . . . . . . . . . . . . . . . . . . . . . 15 Applications Guidebook . . . . . . . . . . . . . . . . . . . . . . 15 Delayed Sweep Operation. . . . . . . . . . . . . . . . . . . . . 15 Com

14、ponent Test Operation . . . . . . . . . . . . . . . . . . . . 16 MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Fuse Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Line Voltage Selection. . . . . . . . . . . . . . . . . . . . . . . . 20 PeriodicAdjust

15、ments. . . . . . . . . . . . . . . . . . . . . . . . . 20 Calibration Check . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Instrument Repair Service. . . . . . . . . . . . . . . . . . . . . 21 APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Important Conside

16、rations for Rise Time and Fall Time Measurements . . . . . . . . . . . . . . . . . . . . 22 Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 “Guidebook To Oscilloscopes” Availability . . . .

17、 . . . . . . . . . . . . . . . . . inside back cover 2 SPANISH MANUAL. . . . . . . . . . . . . . . . . . . . . . . . . 25 FEATURES LOW COST,HIGH PERFORMANCE B+K Precisions 40 MHz and 60 MHz oscilloscopes are among the lowest cost in the industry, yet offer high performance and features not found on

18、many competitors oscilloscopes. Model 2160A includes a built-in component tester, which is an excellent tool for in-circuit troubleshoot- ing. These oscilloscopes are built by and backed by B+K Precision,a compnay that hasbeen sellingreliable,durable, value priced test instruments for over 50 years.

19、 CRT FEATURES Rectangular CRT RectangularCRTwithlarge8x10centimeterviewing area. On Model 2160A, graticule is equipped with variable scale illumination. Convenience Tracerotation electricallyadjustablefrom front panel. 0%, 10%, 90%, and 100% markersfor rise timemeas- urements. DUAL TRACE FEATURES Du

20、al Trace Models2160Aand1541Deachhavetwoverticalinput channels for displaying two waveforms simultane- ously. Selectable single trace (either CH 1 or CH 2) or dual trace. Alternate or chop sweep selectable at all sweep rates. Sum and Difference Capability Permits algebraic addition or subtraction of

21、channel 1 and channel 2 waveforms, displayed as a single trace. Useful for differentialvoltage and distortion measure- ments. HIGH FREQUENCY FEATURES Wide Bandwidth Conservatively-rated 3 dB bandwidth is dc to 60 MHz for Model 2160A and dc to 40 MHz for Model 1541D. Fast Rise Time Rise time is less

22、than 5.8 ns for Model 2160A and 8.8 ns for Model 1541D. Fast Sweep Maximum sweep speed of 10 ns/div (with X10 MAG) assureshigh frequenciesand short-duration pulses are displayed with high resolution. VERTICAL FEATURES High Sensitivity 5 mV/div sensitivity for full bandwidth. High-sen- sitivity 1 mV/

23、div and 2 mV/div using PULL X5 gain control. Calibrated Voltage Measurements Accurate voltage measurements (3%) on 10 cali- brated ranges from 5 mV/div to 5 V/ div. Vertical gain fully adjustable between calibrated ranges. SWEEP FEATURES Calibrated Time Measurements Accurate (3%) time measurements.

24、The main sweep has 23 calibrated ranges from 2 S/div to 0.1 S/div. The delayed sweep on the Model 2160A has 23 cali- brated ranges from 2 S/div to 0.1 S/div. Sweep time is fully adjustable between calibrated ranges. X10 Sweep Magnification Allows closer examination of waveforms, increases maximum sw

25、eep rate to 10 nS/div. DUAL TIME BASE FEATURES(Model 2160A) Dual Sweep Generators Main sweep gives normal waveform display, delayed sweepmaybeoperatedatfastersweepspeedtoexpand a portion of the waveform. Four Sweep Modes Choice of main sweep only, delayed sweep only, main sweep and delayed sweep sha

26、ring the trace (percentage of main/delayed sweep adjustable), or XY. Adjustable Start Of Delayed Sweep DELAY TIME POSition control allows adjustment of delayed sweep starting point. TRIGGERING FEATURES Two Trigger Modes Selectable normal (triggered) or automatic sweep modes. Triggered Sweep Sweeprem

27、ains atrestunlessadequatetriggersignalis applied. Fully adjustable trigger level and (+) or () slope. 3 AUTO Sweep Selectable AUTO sweep provides sweep without trig- ger input, automatically reverts to triggered sweep operation when adequate trigger is applied. Five Trigger Sources Five trigger sour

28、ce selections, including CH 1, CH 2, alternate, EXT, and LINE. Video Sync Frame(TVV)orLine(TVH)triggeringselectablefor observingcompositevideowaveforms.TV-Hposition can also be used as low frequency reject and TV-V position can be used as high frequency reject. Variable Holdoff Trigger inhibit perio

29、d after end of sweep adjustable. Permits stable observation of complex pulse trains. OTHER FEATURES XY Operation Channel 1 can be applied as horizontal deflection (X-axis) while channel 2 provides vertical deflection (Y-axis). Built-in Probe Adjust Square Wave A2Vp-p,1kHzsquarewavegeneratorpermitspr

30、obe compensation adjustment. Component Test Function (Model 2160A) Built-inXYtypecomponenttesterappliesfixedlevel ac signal to components for display of signature on CRT. Channel 2 (Y) Output (Model 2160A) A buffered 50 output of the channel 2 signal is available at the rear panel for driving a freq

31、uency counter or other instruments. The output is 50 mV/div (nominal) into 50. Z-Axis Input (Model 2160A) Rear panel Z-Axis input allows intensity modulation. Supplied With Two Probes FEATURES 4 SPECIFICATIONS CRT Type: 6-inch rectangular with integral graticule, P31 phosphor. DisplayArea: 8 x 10 di

32、v (1 div = 1 cm). AcceleratingVoltage: 12 kV. Phosphor: P31. Trace Rotation: Electrical, front panel adjustable. Scale Illumination: Continuouslyvariable (Model 2160A). Beam Finder (Model 2160A). VERTICAL AMPLIFIERS (CH 1 and CH 2) Sensitivity: 5 mV/div to 5 V/div, 1 mv/div to 1 V/div at X5 MAG. Att

33、enuator: 10 calibrated steps in 1-2-5 sequence. Vernier control provides fully adjustable sensitivity between steps; range 1/1 to at least 1/3. Accuracy: 3%, 5 mV to 5 V/div; 5%, at X5 MAG. Input Resistance: 1 M 2%. Input Capacitance: 25 pF 10 pF. Frequency Response: 5 mV/div to 5 V/div: DC to 60 MH

34、z (3 dB), Model 2160A DC to 40 MHz (3 dB), Model 1541D. X5 MAG: DC to 15 MHz (3 dB), Model 2160A DC to 10 MHz (3 dB), Model 1541D. Rise Time: 5.8 nS, Model 2160A 8.8 nS, Model 1541D. Overshoot: Less than 5%. Operating Modes: CH 1:CH 1, single trace. CH 2:CH 2, single trace. DUAL:CH 1 and CH 2, dual

35、trace. Alternate or Chop selectable at any sweep rate. ADD:Algebraic sum of CH 1 + CH 2. Chop Frequency: Approximately 500 kHz. Polarity Reversal: CH 2 invert. Maximum Input Voltage: 400 V (dc + ac peak). HORIZONTAL AMPLIFIER (Input through channel 1 input) XY mode: CH 1 = X axis. CH 2 = Y axis. Sen

36、sitivity: Same as vertical channel 2. Input Impedance: Same as vertical channel 2. Frequency Response: DC to 1 MHz (3 dB). X-Y Phase Difference: 3 or less at 50 kHz. Maximum Input Voltage: Same as vertical channel 1. SWEEP SYSTEM Operating Modes: Model 2160A: Main, Mix (both main and delayed sweep d

37、isplayed), Delay (only delayed sweep displayed), XY. Model 1541D: Main only. Main Time Base: 0.1 S/div to 2.0 S/div in 1-2-5 sequence, 23 steps. Vernier control provides fully adjustable sweep time between steps. Delayed Time Base (Model 2160A only): 0.1 S/div to 2.0 S/div in 1-2-5 sequence, 23 step

38、s. Accuracy: 3%. Sweep Magnification: X10 10%. Holdoff: Continuously adjustable for main time base from NORM to 5 times normal. Delay TimePosition: Control sets percentage of display that is devoted to main and delayed sweep. Delay Jitter: 1/10,000 of full scale sweep time. TRIGGERING Trigger Modes:

39、 AUTO (free run), NORM, TV-V, TV-H. Trigger Source: CH 1, CH 2, Alternate, EXT, LINE. Slope: (+) or (). 5 Trigger Coupling: AUTO:Sweep free-runs in absence of suitable trigger signal. NORM:Sweep triggered only by adequate trigger signal. TV-V:Video vertical sync pulses are selected. Also usable for

40、high frequency reject. TV-H:Video horizontal sync pulses are selected. Also usable for low frequency reject. Trigger Sensitivity: Auto:1.5 div (internal) 0.5 Vp-p (external) 100 Hz 60 MHz (2160A) 100 Hz 40 MHz (1541D) Norm:1.5 div (internal) 0.5 Vp-p (external) 100 Hz 60 MHz (2160A) DC 40 MHz (1541D

41、) TV-V:1.0 div (internal) 0.5 Vp-p (external) DC 1 kHz TV-H:1.0 div (internal) 0.5 Vp-p (external) 1 kHz 100 kHz Maximum External TriggerVoltage: 300 V (dc + ac peak). COMPONENTTESTER(Model 2160A) ComponentsTested: Resistors, capacitors, inductors, and semiconductors. TestVoltage: 6 V rms maximum (o

42、pen). Test Current: 11 mA maximum (shorted). Test Frequency: Line frequency (60 Hz in USA). OTHER SPECIFICATIONS Cal/Probe Compensation Voltage: 2 V p-p 3% square wave, 1 kHz nominal. CH 2 (Y) Output (Model 2160A): Output Voltage: 50 mV/div (nominal into 50 ohm load). Output Impedance: Approximately

43、 50 ohms. Frequency Response: 20Hzto30MHz,3dB. Intensity Modulation (Model 2160A) Input Signal: TTL level, intensity increasing with more positive levels, decreased intensity with more negative levels. Input Impedance: Approximately 50 k. Usable Frequency Range: DC to 5 MHz. Maximum Input Voltage: 3

44、0 V (dc + ac peak). Power Requirements: 100130 VAC or 200260 VAC, 50/60 Hz, 38 watts. Dimensions (H 3 W 3 D): 5.2 3 12.8 3 15.7 (132 3 324 3 398 mm). Weight: 16.8 lbs (7.6 kg). Environment: Within Specified Accuracy: +10 to +35 C, 1080% relative humidity. Full Operation: 0 to +50 C, 1080% relative h

45、umidity. Storage: 30 to +70 C, 1090% relative humidity. ACCESSORIES SUPPLIED: Two Switchable X1/X10 Probes. Instruction Manual. AC Line Cord. SPECIFICATIONS 6 NOTE: Specifications and information are subject to change without notice. Please visit for the most current product information. CONTROLS AN

46、D INDICATORS GENERAL FUNCTION CONTROLS 1.ON Indicator. Lights when oscilloscope is “on”. 2.2160A Only. POWER/Scale ILLUMination Con- trol. Clockwise rotation from OFF position turns os- cilloscope “on”. Further clockwise rotation increases amount of graticule illumination. 3.1541D Only. POWER Pushbu

47、tton. Turns oscillo- scope “on” and “off”. 4.INTENSITY Control. Adjusts brightness of trace. 5.TRACE ROTATION Control. Adjusts to maintain trace at a horizontal position. 6.FOCUS Control. Adjusts trace focus. 7.2160A Only. COMPonent TEST Pushbutton. With pushbuttonsetto“in”position,ComponentTestmode

48、 is enabled. Normal scope operation is enabled with pushbutton in “out” position. 8.2160A Only. COMPonent TEST Jack. “Banana”- type HI-side input jack for connection to component in Component Test operating mode. 9.GNDTerminal. Oscilloscope chassis ground jack, and earth ground via three-wire ac pow

49、er cord. On Model 2160A, also serves as LO-side Component Test jack. 10.CAL Terminal. Terminal provides 2 V p-p, 1 kHz (nominal) square wave signal.This signalisusefulfor checking probe compensation adjustment, as well as providing a rough check of vertical calibration. 11.2160AOnly.BEAMFINDPushbutton.Momentary- contact pushbutton speeds setup of trace positioning by bringing the beam into graticule area; operates independently of other display controls. VERTICAL CONTROLS 12.VERTical MODE Switch. Selects vertical display mode. Four-position lever switch with the follo