Kenwood-CS-5375-HU-Service-Manual(1) 电路图 维修手册.pdf

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1、100MHz OSCILLOSCOPE CS-5355/CS-5375 SERVICE MANUAL 1997-10/B51-1135-00 (K/K) 100MHz OSCILLOSCOPECS5375 POWER ON/ OFF 1Vp-p 1KHz TRACE ROTA SCALE ILLUMFOCUSINTENSITYCAL DELAY POSITIONTRIGGERING HOLDOFF SLOPE LEVEL POSITION CH 2 INVMAGX10 TRACE SEP NORMINCR COARSEFINE + INPUT 400V PK MAX CAT 1 CH3 POS

2、ITIONPOSITIONPOSITION 2 3 INPUT 400V PK MAX CAT 1 INPUT 50V PK MAX CAT 1 2 3 2 3 2 3 0.1V/DIV _ _ _ _ _ _ _ A MODE CH1 CH2 CH3 CHOP ALT H.MODECOUPLINGSOURCEMODE ALT AC HFFEJ VERT MODE AUTO DCCH2 CH3 CH1NORM B TRIGD AFT.DLY TV FRAME TV LINE SINGLE RESET REDAY LINE B X-Y CH 1or YCH 2 or X .1 .2 .5 1 2

3、 5 50 20 10 5 2 1 .1 .2 .5 1 2 5 50 20 10 5 2 1 VOLTS/DIVVOLTS/DIV .1.2 .5 1 2 5 10 20 50 .1 .2.5 .05.1 .2 .5 1 2 5 10 20 50 CAL S VARIABLEVARIABLE CAL ADD mVmV ACDCACDC GNDGND ABSWEEP TIME / DIV s VARIABLE ms CH3HORIZONTAL CAL _ SELECTOR LINE VOLTAGEFUSE 250V 100 120 220 230 100V 120V 220V 230V T 1

4、.0A T 400mA 100 230 220 120 CAUTION TO AVOID ELECTRIC SHOCK THE POWER CORD PROTECTIVE GROUNDING CONDUCTOR MUST BE CONNECTED TO GROUND. FOR CONTINUED PROTECTION AGAINST FIRE, REPLACE ONLY WITH FUSE OF THE SPECIFIED VOLTAGE AND CURRENT RATINGS. DISCONNECT POWER SUPPLY BEFORE REPLACING FUSE. DO NOT REM

5、OVE COVER. REFER SERVICING TO QUALIFIED PERSONNEL. Z AXIS INPUT 42V PK MAX CHI OUTPUT MAX 5V RMS KENWOOD T M I CORPORATION MADE IN JAPAN Filter (B11-0518-04) Model No. plate (CS-5355 ; B73-0191-04) (CS-5375 ; B73-0189-04) Knob (K27-0590-04) Knob ; lever (K27-3618-14) Handle (K01-0561-02) Cord wrap (

6、W01-0503-04) Rubber foot (J02-0540-05) AC selector (E68-0619-05) Rear panel (A83-0120-02) Push SW (K24-3005-04) Decorative panel ; small (A21-2471-04) Knob (K29-0877-04) Knob (K29-0890-03) Knob (K29-0891-03) Knob (Large ; K21-0940-04) (Small ; k21-0955-04) Decorative panel ; large (A21-2469-03) Mold

7、 panel ; Large (K63-0110-01) KENWOOD TMI CORPORATION COVER( 97.10.30 7:26 AM yW 1 RadioFans.CN 收音机爱 好者资料库 CS-5355/5375 2 The following instructions are for use by qualified personnel only. To avoid electric shock, do not perform any servicing other than contained in the operating instructions unless

8、 you are qualified to do so. WARNING CONTENTS Accessories SPECIFICATIONS .3 SAFETY .7 ADJUSTMENT.8 PARTS LIST.16 DISASSEMBLY.18 PARTS LIST (ELECTRICAL).20 SCHEMATIC DIAGRAM .48 P.C. BOARD .85 SEMICONDUCTORS.93 LOW CAPACITY PROBE PC-54(CS-5355) PC-59(CS-5375) COVER( 97.10.30 7:26 AM yW 2 RadioFans.CN

9、 收音机爱 好者资料库 CS-5355/5375 3 SPECIFICATIONS Type Acceleration voltage Effective area Sensitivity Attenuation Input impedance Frequency response (-3dB) (+10 to +35C) 5mV to 5V/div 1mV to 2mV/div Rise time (+10 to +35C) Signal delay time Crosstalk Maximum input voltage 5mV to 5V/div 1mV to 2mV/div Items

10、CS-5375CS-5355 VERTICAL AXIS (Common to channels 1 and 2) DC : DC to 20MHz, AC : 5Hz to 20MHz 100Vp-p or 50V (DC+AC peak, 1kHz or less) Approx. 250kHz (in multi-trace operation) Normal or inverted, CH2 only inverted Approx. 17.5ns -40dB or less (at 1kHz) 800Vp-p or 400V (DC+AC peak, 1kHz or less) Th

11、e leading edge may be checked using a square wave of the rise time less than that of this model. The leading edge may be checked using a square wave of the rise time less than that of this model. Single trace: CH1, CH2, CH3 or ADD single trace operation Multi-trace: 2 to 4 traces of CH1, CH2, CH3 an

12、d ADD ALT/CHOP: Display by selecting ALT and CHOP ADD: Composite waveform of CH1 and CH2 signals are displayed. CRT 150mm rectangular tube with an integral graticule Approx. 12kV 8X10 divisions (1 division = 10mm) DC : DC to 50MHz AC : 5Hz to 50MHz DC : DC to 100MHz AC : 5Hz to 100MHz Approx. 7nsApp

13、rox. 3.5ns 1mV, 2mV/div : 5%, 5mV to 5V/div : 2% 1-2-5 steps, 12 ranges, fine control between ranges 1M1%, approx. 20pF Sensitivity (+10 to +35C) Input impedance Frequency response (-3dB) (+10 to +35C) Rise time (+10 to +35C) Signal delay time Maximum input voltage Operation Chop frequency Channel p

14、olarity VERTICAL AXIS (CH3) 0.1V/div range : 2% 1M1%, approx. 20pF DC to 50MHzDC to 100MHz Approx. 7nsApprox. 3.5ns ! ! Sensitivity (+10 to +35C) Input impedance Frequency response (-3dB) (+10 to +35C) X-Y phase difference Operation mode Maximum input voltage HORIZONTAL AXIS (CH2, except for X10 MAG

15、 operation) 1mV, 2mV/div : 5%, 5mV to 5V/div : 3% Same as vertical axis (CH2) DC : DC to 1MHz, AC : 5Hz to 1MHz 3C or less at 100kHz X-Y mode is selected with H.MODE CH1 : Y-axis, CH2 : X-axis Same as vertical axis (CH2)! COVER( 97.10.30 7:26 AM yW 3 RadioFans.CN 收音机爱 好者资料库 CS-5355/5375 4 SPECIFICAT

16、IONS Trigger modes Trigger signal sources Trigger coupling (For trigger sensitivity, see the table below.) Sweep type Sweep time (+10 to +35C) A sweep B sweep Sweep magnified operation (+10 to +35C) Linearity (+10 to +35C) HOLDOFF Trace separation Delayed sweep operation Delay time Delay time error

17、(+10 to +35C) Delay jitter ItemsCS-5375CS-5355 3% (5% in X10 MAG operation) Continuously variable from A sweep NORM position Reading on CRT 4% + (0 to 300ns) B sweep is continuously variable by 4 divisions or more with respect to A sweep. Continuous delay operation (AFTER DELAY) Synchronous delay op

18、eration (B TRIGD) : Synchronous with the trigger signal Continuous control by 0.2 to 10 divisions for 0.5div to maximum speed sweep 20000 : 1 of a value 10 times as high as A sweep setting (A sweep : 1ms/div, B sweep : 1s/div) X10 5% (8% for over 0.5ns/div) SWEEP A: A seep ALT: Alternate A sweep and

19、 B sweep B: B sweep X-Y: X-Y oscilloscope operation 0.5s to 50ns/div 3% 1-2-5 steps, 22 ranges, fine adjustment between ranges 50ms to 50ns/div 3% 1-2-5 steps, 19 ranges, fine adjustment between ranges TRIGGERING AUTO: Automatic free running with no signal NORM: Triggered sweep FIX: Sweep at trigger

20、ing point set to center of signal amplitude SINGLE : Single sweep mode RESET : Restarting single sweep operation VERT: Input signal selected for V.mode CH1: Channel 1 input signal CH2: Channel 2 input signal CH3: Channel 3 input signal LINE: Commercial power line AC: AC coupling from 10Hz HF REJ: Lo

21、w-pass filter coupling up to 10kHz DC: DC coupling TV-F (TV FRAM) : Composite video signal, vertical synchronization separation. TV-F (TV LINE) : Composite video signal, horizontal synchronization separation. COVER( 97.10.30 7:26 AM yW 4 CS-5355/5375 5 SPECIFICATIONS 1mV/div, 2mV/div Over 5mV/div Tr

22、igger sensitivity (+10 to +35C) Sensitivity (Amplitude) NORM 1.5div FIX* 1div 1.5div 1div min 1div 1.5div 1.5div 2div 1.5div min 1.5div 2div Signal frequency 10Hz to 10kHz over 10kHz CS-5355 10Hz to 20MHz 20M to 50MHz CS-5375 10Hz to 50MHz 50M to 100MHz Composite video signal DC to 20MHz 20M to 50MH

23、z DC to 50MHz 50M to 100MHz MODECOUPLING NORM AC HF REJ DC TV-F, -L ItemsCS-5375CS-5355 CALIBRATION SIGNAL: Positive square wave, 1Vp-p 3%Frequency : Approx. 1kHz 100Hz to 100MHz100Hz to 50MHz 45W, 58VA44W, 57VA AUTO : Same as above specifications for above 40Hz. (The table shows the sensitivities i

24、n terms of the amplitude display on the CRT.) (min. for the HF REJsensitivity shows that the amplitude necessary for synchronization increases.) FIX* : Same as above specifications for above 50Hz. Input voltage Input impedance Frequency response (+10 to +35C) Maximum input voltage INTENSITY MODULATI

25、ON Darkens at TTL level (+5V) Approx. 10k DC to 5MHz 84Vp-p or 42V (DC+AC peak, 1kHz or less) Width Height Depth Weight (Approximately) DIMENSIONS AND WEIGHT (Valves enclosed in parentheses include projections.) 305mm (344mm) 150mm (165mm) 400mm (459mm) 8.8kg Output voltage Output impedance Frequenc

26、y response (-3dB) CH1 OUTPUT SIGNAL (with 50 load) Approx. 50mVp-p/div Approx. 50 100Hz to 20MHz Voltage Frequency Power consumption (Maximum value) TRACE ROTATION : Trace angle is adjustable with a semi-fixed control on panel POWER SUPPLY 100/120/220/230 VAC (Voltage fluctuation : within10%) 50Hz o

27、r 60Hz ! COVER( 97.10.30 7:26 AM yW 5 CS-5355/5375 6 SPECIFICATIONS EN61010-1 to do so may pose a great safety hazard. The appropriate power cord is supplied by an option that is specified when the instrument is ordered. The optional power cords are shown as follows in Fig.1 Line fuse The fuse holde

28、r is located on the rear panel and contains the line fuse. Verify that the proper fuse is installed by replacing the line fuse. Voltage conversion This oscilloscope may be operated from either a 100V to 230V, 50/60 Hz power source. Use the following proce- dure to change from 100 to 230 volt operati

29、on or vice versa. 1. Remove the fuse holder. 2. Replace fuse F1 with a fuse of appropriate value, 1 amp for 100 VAC to 120 VAC operation. 630 m amp for 220 VAC to 230 VAC operation. 3. Reinsert it for appropriate voltage range. 4. When performing the reinsertion of fuse holder for the voltage conver

30、sion, the appropriate power cord should be used. (See Fig. 1.) North American 120 volt/60 Hz Rated 15 amp (12 amp max ; NEC) Universal Europe 220 volt/50 Hz Rated 16 amp U.K. 240 volt/50 Hz Rated 5 amp Australian 240 volt/50 Hz Rated 10 amp North American 240 volt/60 Hz Rated 15 amp (12 amp max ; NE

31、C) Switzerland 230 volt/50Hz Rated 10 amp Fig.1 Power Input Voltage Configuration Plug configurationpower cord and plug type Factory installed instrument fuse 0.7A, 250V slow blow 5x20mm 0.3A, 250V slow blow 5x20 mm 0.3A, 250V slow blow 5x20 mm 0.3A, 250V slow blow 5x20 mm 0.3A, 250V slow blow 5x20m

32、m 0.3A, 250V slow blow 5x20 mm Line cord plug fuse None None None Parts No. for power cord E30-1952-05 E30-1963-15 E30-1953-05 None 5A Type C None E30-1951-05 COVER( 97.10.30 7:27 AM yW 7 CS-5355/5375 8 ADJUSTMENT To obtain the best performance, periodically calibrate the unit. Sometimes, only one m

33、ode need be calibrated, while at other times, all modes should be calibrated. When one mode is calibrated, it must be noted that the other modes may be affected. When calibrating all modes, perform the calibration in the specified sequence. The following calibration required an accurate measuring in

34、strument and an insulated adjusting flat blade screwdriv- er. If they are not available, contact your dealer. For opti- mum adjustment, turn the power on and warm up the scope sufficiently (more than 30 minutes) before starting. Before calibrating the scope, check the power supply volt- age. TEST EQ

35、UIPMENT REQUIRED The following instrument or their equivalent should be used for making adjustment. PREPARATION FOR ADJUSTMENT Control Settings The control settings listed below must be used for each adjustment procedure. Exceptions to these settings will be noted as they occur. After completing a a

36、djustment, return the controls to the following settings. Digital Multi Meter DL-712 (KENWOOD TMI) Digital Multi Meter R-6450 (Advantest) Square Wave Generator PG-506 (Tektronix) Sine-Wave Generator (1) SG-503 (Tektronix) Sine-Wave Generator (2) MG3631A (Anritsu) Sine-Wave Generator (Low Frequency)

37、AG-203A (KENWOOD TMI) Time Marker Generator TG-501 (Tektronix) Oscilloscope CS-6040 (KENWOOD TMI) DC standard R6142 (Advantest) Capacitance meter 3520 (Hioki) Color Pattern Generator CG-931 (KENWOOD TMI) Termination NAME OF KNOBSPOSITION INTENSITY FOCUS POSITION POSITION VARIABLE AC-GND-DC VOLTS/DIV

38、 A/B SWEEP TIME/DIV COARSE FINE HOLDOFF TRACE SEP TRIGGERING H.MODE TRIGGERING COUPLING TRIGGERING SOURCE TRIGGERING MODE TRIGGERING LEVEL SLOPE MODE B TRIGD/AFT-DLY X10 MAG ADD CH2 INV Table 2 Table 1 12 Oclock 12 Oclock 12 Oclock 12 Oclock CAL DC 5V/DIV Fully counter clock wise Counter clock wise

39、Counter clock wise Fully counter clock wise Fully counter clock wise A AC VERT MODE AUTO 12 Oclock CH1 AFT-DLY OFF OFF OFF Test EquipmentModel COVER( 97.10.30 7:27 AM yW 8 CS-5355/5375 9 ADJUSTMENT ItemAdjustmentNo. 1 Procedure Operating voltageVR4 VR306 2 1) Move the spot to the CRT center by opera

40、ting the POSI controls. 2) Attach the multimeter probes across CN105-1 on 3 and 2 of X73-2210 and adjust VR4 to the voltage 100M 30.0/50M 33.5V. 3) Attach the multimeter probes across CN670-1 and GND of X74-1620 and adjust VR306 so that the voltage is 70V. 3 V.MODE : CH1, CH2AC-DC : GND (both CH) VO

41、LTS : 10mV (both CH)H.MODE : X-Y R/O : OFF Focus center and ASTIG VR308 VR102 4 1) Move the spot to the CRT center by operating the POSI controls. 2) Adjust the spot to the best point with FOCUS on the panel and ASTIG (VR308) . 3) Set FOCUS on the panel to the 12:00 position and adjust VR102 to move

42、 the spot to the best point. b a a best point V.MODE : CH1, CH2AC-DC : GND (both CH) VOLTS : 10mV (both CH)H.MODE : X-Y IntensityVR101 6 1) Set INTEN to the 10:00 position. 2) At the 10:00 position, adjust so that the spot disappears. V.MODE : CH1, CH2AC-DC : GND (both CH) VOLTS : 10mV (both CH)H.MO

43、DE : X-Y CH1 Step ATT Balance VR101 P.C.B. X73-2210 X74-1620 X74-1620 X68-1920 X68-1920 X73-2180 1) Adjust so that the trance does not move when VOLTS is switched from 5mV to 2mV. * Adjust after switching to 2mV with reference to the 5mV position. V.MODE : CH1AC-DC : GND (both CH) VOLTS : 5mV (both

44、CH)H.MODE : A 5 CH1 VARIABLE Balance VR102X73-2180 Adjust by setting VARIABLE to the MIN (fully counterclockwise) position with reference to the MAX (CAL) position. * Ensure that the trace does not move when VARIABLE is switched between MINMAX. V.MODE : CH1AC-DC : GND (both CH) VOLTS : 5mV (both CH)

45、H.MODE : A CH2 Step ATT Balance VR201X73-2180 1) Adjust so that the trance does not move when VOLTS is switched from 5mV to 2mV. * Adjust after switching to 2mV with reference to the 5mV position. V.MODE : CH2AC-DC : GND VOLTS : 5mV (both CH)H.MODE : A 7 CH2 VARIABLE Balance VR202X73-2180 Adjust by

46、setting VARIABLE to the MIN (fully counterclockwise) position with reference to the MAX (CAL) position. * Ensure that the trace does not move when VARIABLE is switched between MINMAX. V.MODE : CH2AC-DC : GND VOLTS : 5mVH.MODE : A 8 CH2 INV BalanceVR205 1) Adjust so that the trance does not move when CH2 INV is switched ON- OFF. 2) Check CH2 STEP ATT BAL and VARI BAL and, if any is deviated, re- adjust following the adjustment procedure. V.MODE : CH2AC-DC : GND VOLTS : 5mVH.MODE : A X73-2180 COVER( 97.10.30 7:27 AM yW 9 CS-53