日立V-1050示波器说明书

1、Model V-1050FOSCILLOSCOPEOPERATION MANUAL编译：胡梓国HITACHI Hitachi Denshi .LtdSchematic Diagram (Sweep Generator) 示意图（扫描发生器 ） 49Schematic Diagram (Sweep Generator) 示意图（扫描发生器 ） 491 Specifications我规格Composition . 组成preventive Maintenance . 预防性维修Calibration 校准 10. 1 Interval 校准间隔 10Calibration TOC o 1-5 h

2、z 4 . 2 Test Equipment Required . 测试所需设备104 . 3 preliminary procedure . 初步程序104 . 4 preliminary Control Settings . 初步控制设置 124 . 5 Initial Starting procedure 初始启动程序12power Supply System供电系统13Display 显示 14Horizontal System 横向系统 16Vertical System 垂直系统 20Triggering System & X Y Operation . 触发系统和 XY 操作 2

3、4Calibrator 校准 28. Disassembly Illustration拆卸 . 插图29. Circuit Board Illustration (with Adjustment Locations). 电路板图(与调整位置 ) . 317 . Diagram图 39(1) Schematic Diagram (Vertical preamplifier). 示意图 ( 垂直前置放大器 ) 41(2) Schematic Diagram (Vertical Output Amplifier & Channel Switch) 通道开关 ) . Schematic Diagram

4、 (Trigger 1 / 2) 示意图(触发 1 / 2 )示意图 （垂直输出放大器与4345Schematic Diagram 仃 rigger 2 / 2) 示意图 ( 触发 2/ 2)4751Schematic Diagram (Horizontal AmplifierZ Axis Amplifier & High Voltage Circuits).（ 水平Z 轴放大器，示意图高电压放大器电路 ） 53Schematic Diagram (Power Supply)示意图（供电）55Schematic Diagram (Calibrator & Front panel Control

5、s. 原理图 ( 校准与前面板控制 TOC o 1-5 h z Schematic Diagram (Connectors) 示 意图(连接器)578. parts list 零件清单 . 59Electrical Replaceable parts List 电器更换零件清单 . 59Mechanical Replaceable parts list机械更换零件清单 . 1181 . SPECIFICATIONS规格Input impedance Approximately 15 k Ohm输入阻抗约 15 欧姆1 . SPECIFICATIONS规格Input impedance Appr

6、oximately 15 k Ohm输入阻抗约 15 欧姆CRT 阴极射线管Type 型号Hitachi 150BNB3I rectangular mesh type tube With 20 KV -日立 150BNB3I 矩形网格型管 20KV accelerationpotential and metal backed phosphor 力口速电位及金属磷Screen type 屏幕类型P3l phosphor Standard p31 荧光粉标准Usefu1 Screen area 有效屏幕面积8 X 10 div (div : 10mm)8X10 (分度值： 10 毫米)Gratic

7、ule 基线Internal graticule With Centimeter divisions and 2mm 内部网格划分 2 毫米Subdivisions along the centeral axis 10 % and 90 % lines are 分支沿中心轴 10% 和 90% 线indicated . illumination Continuously Variable . 照明连续变量表示Focussing 聚焦possible (With automatic focus correction circuit)可能的 ( 自动聚焦校正电路 )Trace rotation p

8、resent前置微调旋钮Scale illumination Variable规模照明变量Brightness adjustment possible亮度调整可能Z AXISZ 轴DC coupled , positive going Signal decreases intensity : 5Vp p正向信号耦合，降低强度： 5vp-pSignal causes noticeable modulation at normal intensity: 信号导致明显的调节在正常强度：DC to 3 . 5MHZ .直流 3.5MHz 。Coupling DC 直流耦合Maximum input v

9、oltage 20 V (DC + AC peak)V ERTICAL DEFLECTION (2 Identical Channels)Bandwidth and Rise time带宽与上升时间DC to at 1eaSt 100MHZ and rise time 3.5nS Or lessDC to at leaSt 5MHZ and riSe time 70nS or less at magni fier 10Hz or less .最大输入电压 20 伏（直流 +交流峰值） 垂直偏转 （2 通道），直流到至少 100 MHz 和上升时间 3.5ns 或更少，extends ， Low

10、er -3dB point ，AC coupling1-2-5 Sequence标定连续控制延伸偏转因子to at least 12.5 volts per division in the 5 volts/ div position至少 12.5 伏特每部 5 伏特/ 格位置直流至少 5 兆赫和上升时间 70ns 或更少的延伸率，低点 -3dB ，交流耦合 10 Hz 或更少DefleCtiOn Factor偏转因子5mV /div to 5V / div in 10 calibrated Steps5mv /分区/ 分区 10 个校准步骤， 1-2-5 序列。Uncalibrated con

11、tinuous control extends deflection factortion factor setting to 500 / divVX10 magnifier increases sensitivity of each deflect-X10 放大镜的敏感性增加每个转移化因子设置500 V/格Accuracy 精度2% (+10 C to +35 C )4% (0 C to +50 C)Additional error for magnifier l %土附加误差放大%DiSplay modes 显示模式CH1 ，CH2 (normal or invert) ， Alterna

12、te ， Chopped (250kHz rate) ， Added Input ImpedanceCH1 ，CH 2 (正常或倒置 ) ，互生，切碎 (250 kHz 速率) ，添加输入阻抗lM Ohm 1.5 % in parallel with 28pF3pF 士 长征 1.5% 欧姆土平行 28pf pf。Maximum Input voltage最大输入电压Coupling DC 直流耦合250V (DC + AC peak) or 500Vp-p AC at 1KHz or less250 V （直流 +交流峰值）或 500vp-p 交流在 1 kHz 以内Input coupli

13、ng 输入耦合AC GND DCDelay Line 延迟线permits viewing 1eading edge of display waveformFour-trace Display 仃 RIG VIEW) four-trace 显示Display simultaneously channel 1 , Channel 2 ,(A EXT TRIG Signal) Channel 4 (B EXT TRIG signal)The deflection factor of Channel 3 and Channel 4 iS approximately 200 mV / div .约 2

14、00 毫伏 / 分格。. 允许查看 1eading 边缘显示波形。（触发视图）Channel 3同时显示通道 1 ，通道 2，通道 3（一个外部触发信号）， 4 频道（二外部触发信号） 偏转因子 3通道和 4 通道Sensitivjty INT : 1/ 1 0 % of screen areasensitivjty 诠释：我 / 我 30% 屏幕面积EXT: 0. 2 V / div 0 %分机： 0.2 伏 / 分区 30%频段内线：直流 70 兆赫 （-3 分贝）位置控制：卧式 100% 标线屏幕 div （ 触发电平旋钮设置在中心 ）Frequency band EXT : DC to

15、 70 MHz (-3dB) position CH3 : Horizontal 100 % graticule line of screen div (trigger level knob is Set at the center)CH4 : Horizontal 0 % graticule line of CH4 : 水平 0% 标线screen 1div .1div 屏幕。HORIZONTAL DEFLECTIONTime BaSe A20nS /div to 0 . 5S /divin 23 calibrated Steps , l-2-5 Sequenee.Un calibrated

16、 continu ous con trol exte ndS deflect ion factorto at leaSt 1.25 Seconds per divisi on in the 0.5 Sec/ div position , x10 mag extendsfastest sweep rate to 2nS /div.Time BaSe B20ns/ div to 50ms / divin 20 calibrated steps l-2-5 seque nee .x10 mag extends fastest sweep rate to 2ns / div.Accuracy2% (

17、10C to +35 C)4% (0 C to +50C)Additional error for magnifier 2%Alternate , B delayed , X Y operation div or less 10 div or moreprese ntBetter than l : 20,000Horizo ntal DiSplay ModesA only , A intensified ,Delayed sweep positi on 1 adjustme ntDelay sweep variableDelay Time JitterTRIGGERING A AND BA T

18、rigger ModesAutomatic , Normal , Single sweep , TV (TV-H Or TV-V)A Trigger Hold-offAdjustable con trol permits a stable prese ntati on of repetitive complex waveform A Trigger sourceInternal (Ch l, Ch 2), Line, External , External 十 10AUTO low band :A Trigger siope + or -TV Sync polarityTV(+) or TV

19、(-)Triggeri ng1evelForboth Aand B.Internal ; 4div ormorevariablerangeExternal ;approximately lVExternal十 10;approximately 10VTriggeri ngsen siti-Forboth Aand B.However ,()ison lyvity andfreque ncyfor BFrequencyIn ternalExternalExternal 十 10DC(30Hz) 10MHz0. 3 div50 mV500 mV10 MHz 100MHz1 . 5 div150 m

20、V1. 5 VTV V sensitivity : SYNC section less than 0.7div or 200mVApproximately 30Hz (When Time BaSe Ais 20ns / div to 2ms / div)A Trigger Coupli ngAC:30Hz to full ban dwidthHFREJ： attenuates Signalsbelowapproximately4KHzLFREJ： attenuates Signalsaboveapproximately4KHzDC:0 to fullban dwidthA Exter nal

21、Trigger Inpt Impeda nCelM ohm 20% in parallel with 28pF 6pF (However , settingHF REJ and LF REJ are not inciuded . )Maximum In put voltage250V(DC + AC peak)500Vp -p AC at lKHz or lessB TriggerModes and SourceExternal)Automatic , Normal (Ch l , Ch 2,B Trigger slope+ or -Trigger Coupli ngbandwidthAC o

22、illy ; 30Hz to fullX Y OPERATION (CH l; Horiz , CH2 ;Wrt)Deflect ion FactorSame as vertical deflecti onAccuracyY:2% (+10 C to+35 C),4%(0Cto+50 C)X:5% 什 10 C to+35 C),7%(0Cto+50 C)Additional error for magnifier 2 %X BaildwidthDC to at least 2MHzPhase Error3or less from DC to 2MHzCALIBRA TOR0.5V l % F

23、requency lkHz l% square waveRise time 5 s or lessOUTPUT SIGNALSA GATE OUT TTL 0UTPUT(74LS00with OUTPUT series resiStanee 100Q )一 5 一B GATE OUT TTL OUTPUT (7400 with OUTPUT series resiSta nee 100Q)POWER SUPPLYVOLTAGE (50/ 60Hz)FUSE100 V ( 90 110 V)2A120 V (108 132 V)2A220 V (198 242 V)1A240 V (216 26

24、4 V)1ANomi nalvo1tage 5%at 400Hzpowersupply frequency :50,60,400Hzpowercon sumpti onApproximately60WENVIRONMENTLimitof operati ontemperature0 C 50 CLimitof operati onhumidity35% 85%Ratedrange of usetemperature10C 35 CRatedrange of usehumidity45 % 85%Strage afld tran sport-20 C70 CDIMENSION AND WEIGH

25、T 310W x 180h x 410d mm (12 . 2w x x 7. 1h x 16. 1d in)10.2kg (22. 5 lbs)COMPOSITION TOC o 1-5 h z Model V-1050 oscilloscope unit 1probe (AT-10AE 1.5) 2Fuse (2A for 100V and 120V setor lA for 220V and 240V set) 1Screw-driver 1Dust proof cover 1power supply cord 1Operati on Manual 1PREVENTIVE MAINTEN

26、ANCEPreve ntive maintenance ,when performed on a regular baSis ,can preve nt in strume breakdow n and may improve the reliability ntThe Severity of environment to which thisoinf tshtreu omsec inllot sciosp seubj.ected willdeterm ine the freque ncy of main te nance. A convenient time to perform preve

27、 ntive maintenance is precedi ng recalibratio n of the in Strume nt .DisassemblyRemove the 4 screws in the top cover of the instrument. Gently Separate the top cover fromthe inStrument and lay aside, Most of the in ternal parts of the in Strume nt are now accessibleif accessto thefront of the circui

28、t boardSare necessary,remove the knobs from the external control shafts on the board.Remove the two screws Securi ng the Side panel to the In put Circuit board and remove the inStrume nt Side pan el . (See 5 . DISASSEMBLY ILLUSTRA TION .) Clea ningThe instrUment should be cleaned as often as operati

29、ng con diti ons require .accumulati onof dirt in the in Strume nt cancause component breakdown ,The covers provide protect ion aga inst dust in the in teriorof the inStrument . Loose dust accumulated on these covers can be removed with a soft cloth or small brush .Dirt that rema ins can be removed w

30、ith a soft cloth depe nded in a mild deterge nt and water soluti on . Abrasive c1ea ners should not be used .Clea ning the in terlor Should only be occaSi on allyn ecessary.The best way to clean the interior is to blow off the dust with a dry, low velocity Stream of air . Asoft briStle brush or a co

31、tt on tipped applicator is useful for clea ning inn arrow Spacesor for clea ning more delicate comp onents .Visual In Specti onThe in Strume nt Should be in spected occaSi on ally for such defects as broken connections,improperly Seated transistors , damaged Circuit boards , and heat damaged parts .

32、 The corrective procedure for most ViSible defects is apparent; however , parti cular care must be taken if heat damaged components are found . overheating usually indicates other trouble in the instrument ； therefore , correct ing the cause of the overheat ing is importa nt to preve nt recurra nee

33、of the damage.CALIBRATION .Hitachi Denshi , Ltd. proyides complete instrument repair and recalibration at our oversea x s office , and authorized dealer . Con tact your local Hitach Den shi , Ltd. Office or represe ntative.4 . 1 CALIBRA TION INTERVALTOmaintain instrument accuracy ,performthe calibra

34、ti onoftheSixV 1050 at least every 1000 month if used infrequently .hoursof operati ons orevery4. 2 TEST EQUIPMENT REQUIREDThe folloWi ng test equipme nt and accessories,or equivale nt ,are required for the complete calibration of the V 1050 . The giye n Specificati ons for the testequipme ntare the

35、 mi nimumnecessary for accurate calibration . Therefore , the Specifications of any test equipment usedmust meet orexceedthelistedSpecifications .All the testequipment is assumedto becorrectly calibrated and operat ing with in the liSted Specificati on. Operati ngin struct ions for thetestequipme nt

36、arenot give ninthiS procedure.Refer to the in structi on manual for the testequipme nt if more in formati on is n eeded. 4. 3 PRELIMINARY PROCEDUREThiS instrument Should be calibrated at an ambient temperatureof +20 C （土 5 C ） for best overall accuracy .Corlrlect the in strume nt to AC linevoltage ,

37、 50/ 60/ 400 Hzline source .Set the ilistrume nt con trolSas give n in the prelimi naryCon trol Sett ings .Allow at least fiftee nwarmup before proceedi ng .minu tes ofpagesSee the Adjustment Locations in the pUlloutTable 4-1TEST EQUIPMENT REQUIREDDescripti onMinimum specificationUsageExamples of Ap

38、plicable Test Equipme nt1. Con sta nt Signal Gen erator Amplitude50kHz reference frequency ; maximum freque ncy 150MHz ;Variable amplitude .Check horizontal , Vertical and trigger bandwidth .Hitachi PartNO . 42022. Stan dardAmplitudeCalibratorAmplitUde accuracy :0.25% ,Variable amplitude ;5mV to 40

39、V ; frequency : l kHz Square wave .Check horiz on tal andVertical gainHitachi PartNO . 42023. Square Wave Cen eratorVariable frequency : 10 Hz to 1 MHz ; output amplitude ;10mV to 100 V .Check probe and vertical compe nSati on.Hitachi PartNO . 42024. DigitalMultimeter0.1% accuracyCheck power supplyH

40、itachi PartNO . 42025. Digital Frequency Coun ter0.1% accuracyCheck CAL frequency .Hitachi PartNO . 4202Time Mark6.Gen erator0.1% accuracyCheck horiz on tal timing .Hitachi PartNO . 42027. CableImpedanee , 50 ohms ; type, RC-58 / U; length , 42 inches , connectors , BNCExter nal trigger operati on C

41、heck. Horiz on tal gain Check and adjustme nt.Hitachi PartNO . 42028. Termin ati onImedanee , 50 ohms ;Vertical AmplifierHitachi PartType,RG-58/U;le ngth,42in Ches, connectors , BNCcompe n Sati on checks and adjust mentNO . 42029. Atte nuatorRatio , 10X ; connectors ,BNC ; impedanee , 50 ohms.Vertic

42、al Amplifier band width check .Hitachi PartNO . 420210. T-conn ectorConnectors , BNC.Exter nal trigger operati on Checks .Hitachi PartNO . 13014 PRELIMINARY CONTROL SETTINGS preset the inStrument controls to the settingS given below Whe n Start ing the calibrati onprocedures .FOCUSMidra ngeFINEMidra

43、 ngeTRACEROTATIONAs desiredVAR HOLD OFFFully coun terclockwiseV. POSITIONMidrange , push inSWP VARFully clockwise , push inV. VARIABLECAL,fully clockwiseDISPLAYAAC-GND-DCGND B TRIC VOLTS / DIV5mV / DIVSOURCEAUTOV. MODECH lLEVELMidrange , push inTRIG VIEWNormal(Button out) A TRIC INVNormal(Button out

44、)LEVELMidrange , push inSCALE ILLUMFullycoun terclockwiseRESETNormalH. POSITIONMidra ngeMODEAutoPULL X10 HAG Midrange , push inCOUPLINGACTIME / DIV AlmsSOURCECH1DLY TIME MULTMidra nge4. 5 INITIAL STARTING PROCEDURERotate POWER / INTENSITYcomtrol to the midrange .Wait a few seconds for the cathode ra

45、y tube (CRT) to warm Up. A trace Should appear onthe diSplay of the CRT .If trace disappears,in crease (clockwise) the POWER /INTENSITY comtrol sett ing un til the trace is easily observed, orron ghly check / adjust the DCbala nee to geta trace 15Adjust FOCUS control for the best focuseddisplay .Rea

46、djust POSITIONcomtrols if n ecessary , to cen terthe trace .POWER SUPPLY SYSTEMNOTEBefore you begin , see ADJUSTMENT LOCATIONS in the pulloutpages.Con trol Sett in gsPreset the controls as giyen in the preliminaryControl Setting .check LOW VOltage supply , if n ecessaryCo nn ect the digital voltmete

47、r (DVM) from the +12 volt line.+ 11. 975 V to +12 .025 V (pll04-3)b.Connectthe DVMfromthe12 V line: 11. 75V to12, 25 V (pll04-5)C.Conn ectthe DVMfromthe+5V line: +4. 75 V to+5.25 V (pll04 4)d.Connectthe DVMfromthe+55 V: +53 Vto 57V(pll04 2)e.Connectthe DVMfromthe100 V+98 V to +102 V (pll041)Adjust L

48、OW voltage supplyAdjust the adjustment RV1112 for DVM reading of +12V( 0.025V) .check High voltage supplya.Connect the DVM to the H . V test point (PEF 503 2) by High voltage probe .Check for a reading if 1870 V 一 2030 VDISPLAYCon tro1 Sett ingpreset the controls as given in the preliminary control

49、Setting.check / Adjust CRT BiasDISPLAY switch to the position , and A TIME / DIV switchto the l ms .a.Rotate the POWER / INTENSITY to the N ” letter of theINTENSITY ” as Show n .b.Observe the trace of CRT .c.Adjust Grid Bias Adjustme nt RVI040 for the trace makes anappear.5 check/ Adjust Trace Rotat

50、io na.Check that the trace is parallel to the cedter horizontalline.b.Adjust TRACE ROTATION for a trace that is paral1el withthe horiz on tal graticulelin es.6 Check / Adjust GEOMetrya. Set the A TIME / DIV Switch to the lms, and AC GND DC to DC . b. Connect the Con sta nt Amplitude Signal Gen erato

51、r to the in put.Set the VOLTS / DIV Switch Setting for a full screen (8 divisi on) deflect ion .e.Check that horizontal bowing is less than 0.15 division .Adjust the GEOM adjustment RVl035 for a display thathoriz on tal lin esis parallel with top and bottom7 Check/ASTI Gmatism and FOCUSthespotscreen

52、a. Vertical Mode switch to the CH2 X-Ypositi onandDisplayswitchtothe X-Y positio n, andAC-GND-DC to DCb. Set the POWER ONINTENSITY con trolfor asmallspot,asthefollow ing figure, using positi on con trolsc.Check that the Spot is roundAdjust the FOCUS adjustme nt and the ASTIG adjustme nt RVI038 for a

53、 round SpotHORIZONTAL SYSTEMCo ntro1 Sett in gSpreset the controls as giyenin the preliminary , coiltrol settings .8 check/ AdjustDelaytimea.Vertica)-Mode switCh to theCHlpositi on .b.Set theA TIME / DIV switChtothe l mS .c.Set theB TIME / DIV switChtothe 0.5 S.d.Set thein put AC GND DCto DC, connec

54、t thecable to theoutputof the time mark gen erator ,set the timemarkgenerator for l ms time marks .Display switch to the INTEN .Connect the cable to the output of the time mark generator.Set the time mark generator for l mS timemarks .Set the DELAY TIME MULT dial to 1.00.Check that inten sified port

55、ion of the Sweep begi ns at thesecond time marker (It may be necessary to readjust the INTENSITY control, so that theintensified portion of the sweep is visible . )Adjust the RV562 so that the inten sifiedportio n of thesweep begins at the start of the second time marker ,Set the DELAY TIME MULT dia

56、l to 9.00 .1 . Check that inten sified porti on of the sweep begi ns at the tenth timemarker .m . Adjust the RV560 so that the inten sified porti On of the sweep begins at the start of the tenth time marker.n . Repeat both the RV562 and the RV560 adjustments for no Visible interaction乙 Refer part(e)

57、 through (in this case , adjustRV740) .9 check / AdjustHorizo ntal Gaina.DISPLAY Switch to the A positionCheck that the time markS alignwith thegraticulelines2% .Over the cen ter eight divisi Ons , with inAdjust H GAIN adjustme nt RV813so thatthe timemarksalig nWith the Center eight graticule 1ines1

58、0check / Adjust B sweepstartSet thein put ACGND DCto GND .Set theA TIME / DIV switchto the 2mS .Adjust the positi oncon trol sothat the begi nning of the Asweep is coincident with the first Vertical graticul-e 1ineSet theB TIME / DIV switch to the lms .DISPLAYswitch tothe B positionCheck thatthe beg

59、i nning of theB Sweepis ide ntical withthe first Vertical graticule li ne11Adjust theRV 714 so thatthebegi nningof the sweep isidentical with the first vertical graticuleline .check / Adjust B sweep calibrati ona .Set the in put AC GND DC to DCb . Check that the time marks align with over the Cen te

60、r eight divisi onsthe graticule lines with in 2% .C . Adjust B SWEEP CAL adjustme nt RV742 so that the time marksalign with the center eight graticule lines12 check / Adiust Horiz on tal x10 MAG Gaina . DISPLAY Switch to the A position , Set the A TIME / DIV switch to the l mSb .Set X10 MAG (pu11 ou