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PM3082 PM3084 100 MHz PM3092 PM3094 200 MHz ANALOG OSCILLOSCOPES Service Manual STATUS TRACK - ^ m i TRACE SEPARATION 4 X POS ► & • § ^ - s ^ / MAGN RESET N O T '^ ^ V ^...
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PM3082 - PM3084 100 MHz PM3092 - PM3094 200 MHz Analog Oscilloscopes Service Manual 4822 872 05373 10 April ’97 Warning: Theseservicing instructions are for use by qualified personnel only. To reduce the rise of electric shock donot perform any servicing other than that contained in the operating...
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DECLARATION OF CONFORMITY FLUKE Analog Oscilloscopes PM3082, PM3084, PM3092, PM3094 Manufacturer Fluke Industrial B.V. Lelyweg 1 7602 EA Almelo The Netherlands Statement of Conformity Based on test results using appropriate standards, the product is in conformity with Electromagnetic Compatibility Directive 89/336/EEC...
CONTENTS “ Z *f TABLE OF CONTENTS Page If'1 V • • ..1 SAFETY INSTRUCTIONS..........INTRODUCTION..........................1-1 SAFETY PRECAUTIONS............CAUTION AND WARNING STATEMENTS.., ............. 1-1 • " ' , r ' SYMBOLS................" ..........1-1 IMPAIRED SAFETY-PROTECTION..................... 1-2 GENERAL SATETY INFORMATION....................
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CONTENTS BLANKING OR Z-AXIS....................2-1V DISPLAY............................2-11 EXTERNAL INTERFACES..............„ ..- ..2-12 2.8.1 Calibrator..................2-12 2.8.2 Standard external interfaces............2-12 2.8.3 Optional external interfaces..................2-13 AUTOSET & CALIBRATION............... n ........2-14 2.9.1 AUTO SET.
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CONTENTS PARTS..................UNITS............................4-1 INTERCONNECTION CABLES........7 ;~V..........4-1 MECHANICAL PARTS...........•’ .' /. V'..........4-3 UNIT DESCRIPTIONS.............. 5.1-1 SIGNAL UNIT A1 ................‘ ......... 5.1-1 5.1.1 Description A 1 ............5.1-1 5.1.2 Signal name lis t............ ; .., ........5.1-14 5.1.3 Unit lay-outs..............
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CONTENTS POWER SUPPLY A 6 ......................5.6-1 5.6.1 Description A 6 . 7 ............ 5.6-1 5.6.2 Signal name list A6 ....................5.6-4 5.6.3 Unit lay-outs.............. 5.6-5 5.6.4 Location list Power Supply unit A3..............5.6-7 5.6.5 Circuit diagrams..........5.6-9 5.6.6 Parts list..
6.3.37 DTB triggering PM3092/3094; trigger sensitivity via CH1, CH2, CH3 and CH4 ..6-31 6.3.38 DTB triggering PM3082/3084; trigger sensitivity via CH1, CH2, CH3 and CH4 ..6-32 6.3.39 Z-MOD sensitivity..........T- ■ ..........6-33 6.3.40 Probe Adjust signal;...
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VIII CONTENTS STATIC SENSITIVE COMPONENTS................... 8-2 SOLDERING TECHNIQUES....................... 8-3 8.4.1 General soldering techniques..................8-3 8.4.2 Soldering micro-miniature semi-conductors..............8-3 REMOVING THE UNITS, MECHANICAL PARTS AND CRT............8-4 8.5.1 Removing the rotary knobs................... 8-4 8.5.2 Detachment of ribbon cables..................8-4 8.5.3 Removal of the units in the front fram e................. 8-4 8.5.4 Removal of the Power supply unit A 6 ................
SAFETY INSTRUCTIONS 1 -1 SAFETY INSTRUCTIONS Read these pages carefully before installation and use of the instrument. INTRODUCTION The following paragraphs contain information, cautions and warnings which must be followed to ensure safe operation and to keep the instrument in a safe condition. WARNING: Servicing described in this manual is to be done only by qualified service personnel.
Components which are important for the safety of the instrument may only be replaced by components obtained through your local FLUKE organisation. (See also section 9). After repair and maintenance in the primary circuit, safety inspection and tests, as mentioned in...
CHARACTERISTICS 2 -1 CHARACTERISTICS Performance Characteristics Properties expressed in numerical values with tolerances, ranges or limits stated, are guaranteed by the manufacturer. Properties expressed in numerical values without tolerances, ranges or limits stated, represent the characteristics of an average instrument. This specification is valid if the temperature has not changed more than + or -5 °C since the last AUTO CAL and the probe is of the same 10:1 model as delivered with the instrument.
Note 1: In GND position: channel disconnected from input, and connected to ground, BNC open (when not in 50Q. position). The GND coupling is not available for CH3 and CH4 in PM3092 and PM3082. Dynamic range DYNAMIC RANGE Up to 25 MHz (PM3082/84) ±12 div...
2 - 4 CHARACTERISTICS CHARACTERISTICS SPECIFICATION ADDITIONAL INFORMATION 2.1.10 Input voltage limits INPUT VOLTAGE LIMITS See note 1 In high Z position ±400 V See note 2 / f \ (d.c. + a.c. peak) * » In 50 Q position d.c.
Note 3: At 10 MHz; input to deselected channel equivalent to 8 div. or less. Note 4: PM3092/3094 a t200 MHz; PM3082/3084 at 100 MHz; channels with equal V/div setting; input to deselected channels equivalent to 6 div. Note 5: PM3092/3094 at 200 MHz;...
MAGNIFICATION Note 1: In a 1-2-5 sequence. By means of the timebase magnifier (x10) the range is extended to 2 ns/div (PM3092/94) or to 5 ns/div (PM3082/84). Note 2: Expands the normal time/div. by 10 times (MTB and DTB) Note 3: The DTB sweepspeed is higher or equal to MTB time/div.
8 div + 4ns) PM3092, PM3094 ±(0.8% of reading + 0.3% Note 1 of central 8 div + 5ns) PM3082, PM3084 Note 1: add 1%of reading in variable mode. DTB jitter in starts 1 part of 25000 2.2.5...
2 - 8 CHARACTERISTICS CHARACTERISTICS SPECIFICATION ADDITIONAL INFORMATION TRIGGERING 2.3.1 Source SOURCE(S) MTB-triggering CH1...CH4, Line; Composite Note 1 SOURCE(S) DTB-triggering CH1...CH4, TV-line Note 2 Each displayed channel provides its own triggering. This feature is available in the Note 1: alternated mode. Note 2: Only available when MTB-mode is switched in TV 2.3.2...
200 MHz 1.0 div d.c. to 300 MHz 2.0 div See note 2 EDGE TRIGGER SENSITIVITY See note 1 & 3 MTB/DTB (PM3082/84) d.c. to 50 MHz 0.5 div d.c. to 100 MHz 1.0 div d.c. to 200 MHz 2.0 div...
2 - 1 0 CHARACTERISTICS CHARACTERISTICS SPECIFICATION ADDITIONAL INFORMATION 2.3.7 Level LEVEL CONTROL RANGE MTB EDGE ± 8 div Unless in Level-p(eak)p(eak) Note 1 Fixed LEVEL CONTROL RANGE DTB EDGE ± 8 div TRIGGERLEVEL Accuracy <0.2 div at 1 MHz input signal triggercoupling DC.
2- 11 CHARACTERISTICS CHARACTERISTICS SPECIFICATION ADDITIONAL INFORMATION 2.4.2 Cursor Accuracies VOLTAGE MEASUREMENT Note 1 Manual ±1% of FULL SCALE Vpp mode: +3% of FULL Note 2 SCALE + 800 pV TIME MEASUREMENTS Note 3 Unmagnified time base ±1% of FULL SCALE Magnified time base up to ±1.4% of FULL SCALE 10ns/div:...
2 - 1 2 CHARACTERISTICS CHARACTERISTICS SPECIFICATION ADDITIONAL INFORMATION TRACE ROTATION Screw driver adjustment Min range 10° External field <0.1 mT Min overrange 2° TRACE DISTORTION Deviation from straight line inside 6x8 div At center of screen <0.3 mm Else <1.0 mm EXTERNAL INTERFACES 2.8.1...
2 - 1 4 CHARACTERISTICS CHARACTERISTICS SPECIFICATION ADDITIONAL INFORMATION AUTOSET & CALIBRATION 2.9.1 AUTO SET Vertical deflection, 2 ... 5 div Note 1 Horizontal deflection Max. 6 periods on CRT Note 1 At input signal 10 mV ...25V 40 Hz ... 30 MHz Note 1: AUTO SET selects the proper channel, sets vertical deflection, timebase speed, intensity and triggering for easy to read display of input signals or user programmable AUTO SET...
2 - 1 5 CHARACTERISTICS CHARACTERISTICS SPECIFICATION ADDITIONAL INFORMATION 2.10.2 Battery backup DATA & SETTINGS RETENTION See note 1 Retention time 2 years Batteries: See note 2 LR 6 Recommended type Quantity Temperature range 0...+70 °C See Note 3 Note 1: When instrument is switched off or during mains failure.
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2 - 1 6 CHARACTERISTICS CHARACTERISTICS SPECIFICATION ADDITIONAL INFORMATION MAX. HUMIDITY See note 1 Operating and Non operating (storage) Relative humidity non condensing Note 1: In accordance with MIL-T-28800D par. 3.7.2.1.1. (FIGURE 2). MAX. ALTITUDE Operating 4.6 km See note 4 Non operating (storage) 12 km See note 5...
2 - 1 7 CHARACTERISTICS CHARACTERISTICS SPECIFICATION ADDITIONAL INFORMATION 2.13 2.13.1 General aspects and Susceptibility 2.13.1.1 General Meets MIL-T-28800D, Type III, Class 3 (Navy requirement, unless specified otherwise). Meets MIL-STD-461C as follows: CE01 (Narrowband) Conducted Emissions Part 2 Part 4 CE03 Conducted Susceptibility Part 2...
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CHARACTERISTICS CHARACTERISTICS SPECIFICATION ADDITIONAL INFORMATION The PM3082 and PM3084, including standard accessories, conform with the EEC Directive 89/336 for EMI immunity, as defined by IEC 801-3, with the addition of the following tables. Table 1. Susceptibility: no visible disturbance Frequency range: E = <...
2 - 1 9 CHARACTERISTICS CHARACTERISTICS SPECIFICATION ADDITIONAL INFORMATION The PM3094 and PM3092, including standard accessories, conform with the EEC Directive 89/336 for EMI immunity, as defined by IEC 801-3, with the addition of the following tables. Table 5. Susceptibility: no visible disturbance E = 3 V/m Frequency range: E = <...
2 - 2 0 CHARACTERISTICS CHARACTERISTICS SPECIFICATION ADDITIONAL INFORMATION 2.14 SAFETY MEETS REQUIREMENTS OF I EC 348 Class I See note 1 UL 1244 See note 2 CSA C22.2 No231 See note 2 VDE0411 See note 1 APPROVALS (applied for) CSA C22.2 No231 MAX.
50 O 10 mV/div with a tolerance of ±10% Freq. response (PM3092/94) Terminated with 500 dc ... 200 MHz Freq. response (PM3082/84) dc ... 100 MHz Terminated with 500 Dynamic range ±1 Odiv At 50 MHz MTB/DTB GATE OUT...
2 - 2 2 CHARACTERISTICS 2.17 SPECIFICATION OF IEEE-OPTION TYPE OF INTERFACE ANSI/IEEE 488.2 SCPI (see SCPI operating manual) Note 1 INTERFACE REPERTORY Source handshake Complete capability Acceptor handshake Complete capability Talker Basic talker: yes Serial poll: yes Talk only: yes U n a d d r e s s M L A : y e s Listener...
3.1.1 Introduction to oscilloscope family The family consists of four analog general purpose oscilloscopes with model numbers PM3082, PM3084, PM3092 and PM3094. All instruments have four vertical channels. Differences between these models are the vertical bandwidth, the features of the vertical channels 3 and 4 and the presence of switcheable 50Q input impedance.
3 - 4 DESCRIPTIONS 3.1.3 Explanation of signal names Throughout the circuit diagrams signal names are used. These names make it easier to trace a signal going from one circuit diagram to another. In many cases the signal name and also the component to which a certain node is connected are given in the circuit diagrams.
3 - 5 DESCRIPTIONS Some important notes: - To measure some signals, it is necessary to unlock units. Refer to chapter 8.5 for details on how to proceed. - The given AC and DC signals are average values: your oscilloscope under test may deviate from the values given in the circuit diagrams.
3 - 6 DESCRIPTIONS 3.2.2 Vertical channels. There are 4 vertical channels that are mainly identical. A difference is that the 200 MHz oscilloscope versions have a switchable 50£2 input impedance while the 100 MHz types do not have this feature. Another difference is between the 4 channel and the 2 + 2 channel versions.
3 - 7 DESCRIPTIONS 3.2.3 Triggering and time bases. The sections for Main Time Base (MTB) and Delayed Time Base (DTB) are for the greater part identical. Therefore the MTB part is extensively described and then the DTB part briefly. Main Time Base Description.
3 - 8 DESCRIPTIONS An output signal from DTB TRIGGER FILTERS + AMPLIFIERS can be used for X DEFLection (MTB and DTB are off then) via the block TIME BASE / X DEFLECTION INPUT CIRCUIT. The function of DTB CURRENT SOURCE, DTB TIMING and DTB SAWTOOTH PICK OFF is identical to the corresponding blocks in the MTB section.
3 - 9 DESCRIPTIONS Intensity and focusing. The FINAL Z INPUT STAGE receives input signal for trace intensity (ZS) from the Z CONTROL block in the time base section. A second input signal (ZT) determines the intensity (Z) component of the text information.
3 - 1 0 DESCRIPTIONS 3.2.6 Power supply The power supply is a switched mode type and has high efficiency. It can function on a wide range of LINE input voltages. An important part of the power supply is directly connected to the mains. This part carries LIVE VOLTAGE and measurements and repairs must be carried out via a separation transformer by a qualified technician.
PARTS PARTS UNITS Description Item Figure Ordering code A1 Signal unit PM3082 (*) 5322 214 90896 A1 Signal unit PM3084 (*) 5322 214 90898 5322 214 91027 A1 Signal unit PM3092 (*) A1 Signal unit PM3094 (*) 5322 214 90724...
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PARTS for location o f these items in the oscilloscope refer to the figures Figure Ordering code Description 5322 321 21616 Line cord European type 5322 321 10446 Line cord USA type 5322 321 21617 Line cord British type 5322 321 21618 Line cord Swiss type 5322 321 30387 Line cord Australian type...
5322 455 81196 5322 455 81195 Textstrip bezel PM3092 5322 455 81194 Textstrip bezel PM3084 5322 455 81193 Textstrip bezel PM3082 5322 414 20406 Dark grey control knob 5322 455 81144 CAL-SEAL sticker 5322 414 20405 Dark mushroom control knob...
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4 - 4 PARTS 21 22 Figure 4.5 Mechanical parts, rear pane! Note: for items not listed refer to chapter 4.2. Item Ordering code Description Mains input connector 5322 219 82813 Fuse 5x20 1,6AT 4822 070 31602 Contact spring single 5322 492 70941 Battery compartment cover 5322 456 90426...
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4 - 5 PARTS Figure 4.6 Mechanical parts inside instrument Note: for items not listed refer to chapter 4.1.2 and 4.2. Item Ordering code Description 5322 464 90708 Chassis complete 5322 361 10614 5322 381 11276 Bezel 5322 480 30181 Blue contrast filter 5322 414 20568 Power on/off knob...
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4 - 6 PARTS S m 5 3 *4 Figure 4.7 Mechanical parts, bottom view Note: for items not listed refer to chapter 4.1.2 and 4.2. Description Item Ordering code BNC connector Z-mod 5322 267 10004 Solder tag for Z-mod 5322 290 34022 Clamp for delay line (plastic) 5322 401 10954...
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4 - 7 PARTS Figure 4.8 Mechanical parts behind front pane! Note: for items not listed refer to chapter 4,1.2 and 4.2. Item Ordering code Description 5322 290 61044 Earth contact 5322 447 91923 Front frame 5322 460 60404 CRT frontrubber 5322 462 40957 Light conductor 5322 134 41076...
5.1 - 1 UNIT DESCRIPTIONS UNIT DESCRIPTIONS SIGNAL UNIT A1 5.1.1 Description A1 5.1.1.1 Introduction With the exception of the final stages, unit A1 incorporates the vertical channels, the triggering, the time bases and the intensity (Z) control. The unit A1 description is split into the following chapters: Input attenuators and calibrator.
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5.1 -2 UNIT DESCRIPTIONS 5.1.1.2 Input attenuators and calibrator Diagram 1, 2, 3, 4 The attenuators of channels 1,2, 3 and 4 are identical, therefore only channel 1 is explained. Every attenuator basically consists of four sections. These sections are: The input circuit with 50ft termination resistor and AC/DC input coupling circuit.
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5.1 -3 UNIT DESCRIPTIONS The signal ATCAL is applied to /33 attenuator R1008/R1009. ATCAL can supply several accurate voltages that are used for vertical calibrations. Impedance converter This active stage consists of three sections with different frequency ranges. The sections partly make use of the same components: The HF section for frequencies above 5 kHz.
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5.1 -4 UNIT DESCRIPTIONS Calibrator This circuit is used for probe adjustment. It is built up around triple analog multiplexer D1151. The sections D1151/1,2,10,15 and D1151/3,4,5,9 form a 2 kHz oscillator. The third section D1151/11,12,13,14 switches in the 2 kHz rate of the oscillator. The oscillation principle is now explained with the simplified diagram in the figure.
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5.1 -5 UNIT DESCRIPTIONS The amplifier D1201 can be switched to a number of attenuation/gain positions that are dependent on the channel 1 AMPL position. The gain x1 position is determined by R1205/R1206/C1205 that are present across pin 6 and 7. The x1 is switched by control signal PA1X1. The attenuation /2 is determined by R1207 and switched by PA1/2.
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5.1 -6 UNIT DESCRIPTIONS The balanced output signals FNC1DPOO and FNC1DP01 at pin 9 and 10 can be used to provide signals for future instrument extensions such as a digital signal storage. This is present on all 4 channels. Biasing current for these outputs is provided via V1302, V1313 and R1307. The capacitor C1301 determines the cut-off frequency if the bandwidth limiter is active.
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UNIT DESCRIPTIONS 5.1 -7 D5503 gives the necessary inversion of the main trigger path if channel 2 is in the inverted mode. The signal CNT4MTI-HT that is present at pin 4 of AND gate D5503 gives inversion of the main trigger path if channel 4 is in the inverted mode.
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5.1 -8 UNIT DESCRIPTIONS DLENO-HT (Data Latch ENable) and DLEN1-HT determine if D9001 or D9002 reacts on the SDA/SCL signals. The figure below indicates the relation between SDA and SCL. DATA LINE CHANGE ! STABLE: OF DATA • DATA VALID ALLOWED! Figure 5.12 Relation of serial bus signals SDA and SCL D9003 and D9004 have outputs that control a number of on/off functions in the preamplifier.
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5.1 -9 UNIT DESCRIPTIONS 5.1.1.5 Main and delayed time base triggering Diagram 12 The main time base triggering (MTR) is mainly formed by IC D6541. The other IC D6621 is the peak- peak detector for the trigger level. The balanced input signal for triggering on vertical channels 1,2, 3 or 4 is applied to pin 7 and 8.
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5.1 - 10 UNIT DESCRIPTIONS Pin 7. The signal is high during field 1 and low during field 2. Field 1 and Field 2 together form one frame. The set/reset flipflops D6779 make the field 1 (MTRTVFLD1) and field 2 (MTRTVFLD2) pulses. As input signals are used the output signals at pin 7 and 3 of N6771.
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1 - 11 UNIT DESCRIPTIONS D8004 has inputs and outputs with the following functions: TBEOHO-LX goes low at the end of the hold-off period. TBAUTO-LD is low if auto free run mode is active. TBEOM-HX goes high at the end of the MTB sweep. TBSTD-LX goes low to start the DTB sweep.
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5.1 -12 UNIT DESCRIPTIONS Diagram 16 This diagram indicates the timing circuits for the MTB. The principle of the time base is that a capacitor is charged with a constant current. This gives a time-linear voltage across the capacitor; the so- called sawtooth or sweep signal. The timing capacitance consists of C6011 that is always in circuit and C6012, C6013 that are activated via the switching transistors V6016 and V6019.
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5.1 - 13 UNIT DESCRIPTIONS The table shows the active main time base sections as a function of time/div setting: main time base Timing caps Time Current source Charge Hold off caps C6012 C6013 C6415 C6017 /div MTBI2 .1 1 .110 Current MTBC2...
5.1 - 14 UNIT DESCRIPTIONS output stage). The output voltage XCAL at the horizontal deflection plates of the CRT is measured and horizontal calibrations are performed. During normal oscilloscope functioning the multiplexer connects pin 3 + 4 and pin 13 + 11. This switches V7093 and V7094 on and the feedback paths for MTB and DTB are interrupted.
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5.1 -20 UNIT DESCRIPTIONS TBSEL TIME BASE MTB/DTB SELECTION R5501:10 R6018:16 R7028:17 R8072:15 TBSTD-LX TIME BASE START OF DTB D6011:16 D8004:15 TBSSG-HT TIME BASE END OF SINGLE SWEEP D8004:15 D7005:17 C7054:17 TBSMART TIME BASE TEST SIGNALS X9001:18 TBXDEFL-LD X DEFLECTION CONTROL SIGNAL D9012:14 V8015:15 R7772:...
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UNIT DESCRIPTIONS 5.1 -21 5.1.3 Unit lay-outs TOX1501 ON U PROCESSOR A3 TO X1001 ON CONNECTOR BOARD A10 £ Lay-out 1 - Large component side of signal unit A1...
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5.1 -21 001 ON CONNECTOR BOARD A10 36 33 81 29 27 25 28 21 19 17 15 13 11 9 7 5 3 1 o a o a o o o o o a o o a a a o a o o o o o o o a a o o o o o o o o o a 89 84 82 80 29 26 24 22 20 16 16 14 12 10 6 Lay-out 1 Large component side of signal unit A1...
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5.1 -22 UNIT DESCRIPTIONS Lay-out 2 - Small component side of signal unit A1...
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“n | R 2 0 0 1 | 4001 | moo»| C J I Ctt| 3002 | moog| IS IS PPhsteg IS S I IlflWiEsa MM33 N > nnsolmissllsl l u f f l 2106 fi fltoer 02103 R 2102 2101 R2112 »61...
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UNIT DESCRIPTIONS 5.1 - 22 a |c w ii|tt» n |c « o ii] |a a < o » |c M d ^ pa04gtC904t1 R7043 |C7021 EE3__ G 5 7 1 R 2 1 U v' u''|n n 4 4 |ftro 4 a | | R 7Q 41 0 0 1 i l l...
UNIT DESCRIPTIONS 5.1 -23 5.1.4 Location list Signal Unit A1 ’-L’ means that the component is located on the side with the large components. Otherwise the component is located on the side with small components (SMD’s: surface mounted devices) C1001 F15-L C1102G10 C2018 D13 C2304 D8...
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5.1 -38 UNIT DESCRIPTIONS + 12AT4 INPUT SENS REF NR TYPE +-12AT4 •12AT4 Q N D N«001 AO-646 ST8244 970430 Diagram 4a - Attenuator CH 3 (PM3092/PM3082)
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UNIT DESCRIPTIONS 5.1 -42 +12FNC12 FM 2M V 00003/7 + 12FNC12 H2FNC12 Diagram 8 - Y-functions...
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UNIT DESCRIPTIONS ♦ 10P* +120LD REF VOLTAGE | DG001 HEF40M...
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5.1 -43 CLAMP CIRCUIT ] | DELAY LINE DRt/ER | ! AC:35mV | CORRECTION VOLTAGE | N5001 | SUPPLY VOLTAGE | •12V +120 LD REF NR Type +120LD 05001 HEF4oaa N5001 LM3S8 STB240 N5002 CA3046 970428 Diagram 9 - Delay line driver (PM3094/PM3092)
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UNIT DESCRIPTIONS ♦ 10PA AC :35mV • DC: 5V REF VOLTAGE CORR DLDDCLEVB.1 DLDDCLEVELO R5050 51 IK DS001 D5001 HEF40M HEF4066...
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5.1 -43 D5001 HEF4096 CORRECTION VOLTAGE~~| *C001 [ ' " s u p p l y v o l t a g e +12DLD ± REF NR TYPE + 12DLD PS001 HEF4068 NSOQ1 LM3S8 STB24C N5002 CA3046 979428 Diagram 9 - Delay line driver (PM3094/PM3092)
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REF VOLTAGE CORRECTION VOLTAGE | SUPPLY VOLTAGE N5001 >12010 D5001 D9001 HEF4099 HEF4O08 ± REF NR TYPE *12010 R t d — I F HEF4Q88 14_____ 06001 STB2S0 NS001 LM3S8 8_________4 070428 N6002 CA3046 Diagram 9a - Delay line driver (PM3084/PM3082)
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| DELAY LINE DRIVER | CORRECTION VOLTAGE**) | SUPPLY VOLTAGE | N5001 ♦ 12V ♦ 120 ID C5008 t0 n ± •120 ID REF NR TYPE 06001 HEF4Q88 STB25C LM3S6 NS001 B7D420 CA3046 NEO02 Diagram 9a - Delay line driver (PM3084/PM3082)
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UNIT DESCRIPTIONS D5501 HEF4053 04301/20 D2301/20 D3301/20 01301/20 04301/24 02301/24 03301/24 D1301/24 02301/23 | DTB TRIGGER SOURCE CONTROL ] ± REF NR TYPE +60ML + 120ML 05501 HEF4053 D5502 HEF4053 D5503 HEF4061 ST8251 09009 000200 970426 Diagram 10 - Display and trigger control...
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UNIT DESCRIPTIONS + 12D M L V8018 ♦ 12CNT ALTCLK POWER UP RESET DML V5503 BC848 C5505 B20p U N E C N T R552O D9000 000200 DISPLAY MODE R5527 06514 + 12D M L C5504 +6DML 100K 100n LOGIC P U O M L f 12CNT RS511...
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5.1 - 46i UNIT DESCRIPTIONS 09003 NB001 HEF4094 3444 O C T 6 B D A C ATCAL2 + 12PA 0 11 5 2 0 CMC? + 10PA VUAX S R G8 ATCAL1 • 01152/10 - o - ► C1 / - 4 A7CAU0 01152/11 s <...
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5.1 - 4 6 ii UNIT DESCRIPTIONS 09001 TEA 1017 X9001/20 ^ > I C 2 / « J1001 X9001/11 XB001/12 AT1/100 <1006/1 K 1 0 0 1 / 1 AT1-50E AT2AC/DC K20Q2/1 AT2/1M K2006/1 AT2J0E K2001/1 AT12REP <1001/16 AT1/2-5 V1017 AT2AXH 10003/16...
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UNIT DESCRIPTIONS 5.1 - 47 MTOTVSELtO UTRSLDPE TRGGB4S ON M +VE SLOPE SLOPE ♦VE VDEO SO •VE VDBO SG AC^OOmV R0678 DC:l50nrV 4K22 MTBK31 TO OOQ227 BSSW R6S7B Li LH 2mA/DIV 2 X 5mA : NOTUSE ir r a e o Diagram 12 - MTB trigger...
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| TV CLAM H7801 R0BO1 * , f V * ----------------- H --------i — i----------------------- — 08802 caeo3 C8804 ■ I ” ] " 10n R0811 B7811 C»12 T s s v T ' ° " R0Q21 R7S21 — ^ ------------------I 4 P ---------------------- 1 1 1 1 1 C«Q22...
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UNIT DESCRIPTIONS 5.1 -48 | TV UNE/FRAME SELECTION TV SYNC. SEPARATOR ~~l Diagram 13 - TV/line trigger...
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| TV SYNC. SEPARATOR | TV CLAMP m t r h d t 09012 TV STANDARD MTRTVMOOE ♦7.7V RALMTSC hOTV(JAP) +5J3V HCTV (EUREKA) ♦ 2 2 V a C8804 a C8903 " " " l O n C7912 | 47(i Tssv T ,on R7921...
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5.1 -48 UNIT DESCRIPTIONS | TV SYNC. SEPABATOtT~| TV U N E/FR AM E SEUECTKDN Diagram 13 - TV/line trigger...
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UNIT DESCRIPTIONS +180 TP X80C2/11 ^ LEVPTB 1 . 4V D.ISWrtv XDEFL OUTPUT CIRCUfT R7753 DTHXDEF1 V7032 |2 fl1 E J t N 0 2 rrA J 6 r* i C7751 2 X 3 n * 1 lOOp R77S4 DTRXD6F0 ^9iE V7031 AC :300m V...
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5.1 -49 TRIGGERS ON „ DTHTVSEL+D +VE SLOPE •VE SLOPE TV UNE AC^OOmV OCMSOmV r ...... > r a * h i e s C7581 07583 ■ , o n T 2mA**v ■ N O J L S E _ _ 2 X 5mA -12DTR +5.8V...
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5.1 -50 UNIT DESCRIPTIONS Diagram 15 - Time base logic...
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" ¥ • B A W * + * l 0 -1 0 v "l R8C70 5K11 R8001 R80G2 MTRSEN 363£ 363E irm sA L R6700 KTTOTVMOOE R6772 , C8000 J6001 R6071 R7S54 ' tOOn I 8K2S DSOCALM R8015 ~ j 1 K B 2 t DSOCALD \»C1S OTBVAft...
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5.1 - 50 UNIT DESCRIPTIONS V 6 0 0 4 Diagram 15 - Time base logic...
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UNIT DESCRIPTIONS 5.1 -51 Diagram 16 - Main time base...
5.1 - 55 UNIT DESCRIPTIONS Item Description Ordering code Parts list MECHANICAL BOARD,PRINTED SIGNAL UNIT 94 5322 214 90724 5322 214 91027 BOARD,PRINTED SIGNAL UNIT 92 BOARD,PRINTED SIGNAL UNIT 82 5322 214 90896 BOARD,PRINTED SIGNAL UNIT 84 5322 214 90898 0002 SPECIAL NVT FOR BNC...
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5.1 -56 UNIT DESCRIPTIONS Item Description Ordering code C1051 CAP.CHIP AP 63V 10% 10NF 5322 122 34098 C1054 CAP.CHIP AP 63V 10% 10NF 5322 122 34098 C1055 CAP.CHIP AP 63V 0.25PF 2P7 5322 122 31873 C1056 CAP.CERAMIC AP 63V 5% 10PF 5322 122 32448 C1057 CAP.CHIP...
UNIT DESCRIPTIONS 5.2-1 FINAL XYZ AMPLIFIER A2 5.2.1 Description A2-200 MHz version 5.2.1.1 Final Y am plifier Diagram 1 The output signal from the delay line is applied to the input pins 6 and 9 of amplifier IC D1001. This IC and surrounding components comprise the MF and HF square wave compensations.
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5 .2 -2 UNIT DESCRIPTIONS The other plate is driven by push-pull stage V1107/V1112. The driver transistors are V1101 and V1104. The input signal is YPREOUTO. The output voltage applied to the CRT deflection plates is control led by the feedback networks R1101/R1141/R1143/C1101N 1113/R1140/C1121 and R1102/R1142/R1144/C1102/V1113/R1145/C1122.
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UNIT DESCRIPTIONS 5.2- 3 The final X amplifier half that drives the left deflection plate is explained now. Its function is identical to that of the other amplifier half. The balanced input signals XDRIL1 and XDRILO are applied to input stage V2101.
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5 .2 - 4 UNIT DESCRIPTIONS The intensity is influenced by the output signal INTEN-AA of the Z- amplifier and the signal INTEN- DA. INTEN-AA is determined via the front-panel TRACE INTENSITY, TEXT INTENSITY, MTBI and chopper blanking control signals. The HF component in the INTEN-AA signal is applied to G1 of the CRT via C4037.
UNIT DESCRIPTIONS 5.2 - 5 5.2.2 Signal name list A2-200 MHz version Note: In the signal name list you find the itemnumber of the component that is source or destination. Behind this itemnumber (separated by you find the number of the diagram where the source/destination can be found.
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5.2-6 UNIT DESCRIPTIONS XSCL SERIAL CLOCK X SECTION J2002:06 N2002:03 XSDA SERIAL DATA X SECTION J2001:06 N2002:03 XSWO X SWITCH SIGNAL 0 TRACE/TEXT V1204:01 D2001:03 XSW1 X SWITCH SIGNAL 1 TRACE/TEXT V1203:01 D2001:03 XYSWO X/Y SWITCH SIGNAL 0 TRACE/TEXT X2501:06 R1204:01 XYSW1 X/Y SWITCH SIGNAL 1 TRACE/TEXT...
UNIT DESCRIPTIONS 5.2-9 5.2.4 Location list A2-200 MHz version ’-L’ means that the component is located on the side with the large components. Otherwise the component is located on the side with small components. C1001 C11 C2012B7 C3009 B5 C5002 D11-L C1002C11 C2013 B7 C3011 B5...
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5.2- 14 UNIT DESCRIPTIONS A2 (200 MHz) - Diagram 2 ; Final Y output stage...
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5.2 - 14 UNIT DESCRIPTIONS STB263 970428 A2 (200 MHz) - Diagram 2 ; Final Y output stage...
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UNIT DESCRIPTIONS 5.2-15 | DC LEVEL SHIFT X-TEXT | LOCAL SUPPLY FILTERING -50 XN -36XR A2 (200 MHz) - Diagram 3 ; Final X preamplifier and control...
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UNIT DESCRIPTIONS FINAL X-AMPL DRIVER XZPREAM P VCV F CA LL OUTV OUTIN A H L Ol/TAP oum* BUOF | DC LEVEL SHIFT X-TE N20Q2 TDAB444 OCT6B DAC XCRTOFH +12XND +10XREF XSDA XCRTOR J2001 XCRTGCH XSCL J2002 XCRTGCL XTRAGC XHFADJ DARK C2O01 ■...
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5.2-15 +12XND +1CXND +10OTEF +5XN0 C2177 C217S R2172 R2171 MRS25 C2277 C2278 ■+12XND + 1BXND A2 (200 MHz) - Diagram 3 ; Final X preamplifier and control...
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UNIT DESCRIPTIONS 5.2-16 AC20mV DC:-10V AC:80mV OCMOV A2 (200 MHz) - Diagram 4 ; Final Z amplifier...
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UNIT DESCRIPTIONS 5 .2-16 FINAL Z-AMPUFIER C3132 ■ 1 1 R3136 R3132 1 V3133 ENDSTAGE FOCUS “ lOOn 5K11 1 1 I 1K7B n o t u s e R3CB6 \4 K B 4 +102REF +SZNO R3134 V3101 +102BEF V3131 !4K7 BFB24 BAVQO...
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UNIT DESCRIPTIONS 5.2 -1 7 A2 (200 MHz) - Diagram 5 ; Modulator/demodulator and focus control...
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if j ■ r r g I % H r l r H 8 8 S 3 > 5 ^ 3 r l r l H ■ n ®...
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5.2-18 UNIT DESCRIPTIONS R5007 R5121 58VA2 ■ — + t2A2 — _______________ + 12YND CS111 58XND -‘-.■avKin CS211 •582ND -‘-iQ T u n CS311 CS411 io n R5008 R5126 . i w i j r -58VA2 -58VA2 C5116 ■ ^ - i a x N o -58XND C5216 58ZNO...
5.2 - 35 UNIT DESCRIPTIONS 5.2.7 Description of A2-100 MHz version. 5.2.7.1 Final Y amplifier. Diagram 1. The output signal from the delay line is applied to the input pins 6 and 9 of amplifier IC D1001. This IC and surrounding components comprise the MF and HF square wave compensations. Also the vertical CRT text signal is applied to D1001 (pin 15 and 16).
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5.2 - 36 UNIT DESCRIPTIONS Diagram 2. This diagram shows the Y-output amplifier. The amplifier is located at the small printed circuit board at the CRT socket. The input signal is a current and is applied to V4101 and V4102. The output signal is voltage and is applied to the vertical deflection plates of the CRT.
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UNIT DESCRIPTIONS 5.2 - 37 Diagram 4. This diagram shows the final intensity (Z) and focusing amplifiers. These amplifiers drive the intensity electrode G1 and the focusing electrode G3 of the CRT. The input circuit is formed by IC D3001. Input pin 5 and 6 of D3001 receive the Z-pulses ZLTRAO and ZLTRA1 that determine the intensity during signal display.
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5.2 - 38 UNIT DESCRIPTIONS The signal FOCUS-DA is then mixed with the LF component of FOCUS-AA before its level is adapted to the nominal G3 voltage via transistors V4002A/4003/V4004. Diagram 6. This diagram shows the RC-branches and regulators N5131 that give the supply voltages for the various circuits.
UNIT DESCRIPTIONS 5.2 - 39 5.2.8 Signal name list A2-100 MHz version Note: In the signal name list you find the itemnumberofthe component that is source or destination. Behind this itemnumber (separated by you find the number of the diagram where the source/destination can be found NAME MEANING...
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5.2 - 40 UNIT DESCRIPTIONS NAME MEANING SOURCE DESTINATION XOUT1 X OUTPUT 1 V2234:03 R2271:03 V2213:03 R2301:03 XPLATEO X OUTPUT 0 TO CRT LEFT PLATE R2161:03 X2411:02 XPLATE1 X OUTPUT 1 TO CRT RIGHT PLATE R2261:03 X2411:02 XPLATECO X OUTPUT 0 TO CRT LEFT PLATE R4261:02 X2403:02 XPLATEC1...
UNIT DESCRIPTIONS 5.2.9 Unit lay-outs A2-100 MHz version 111 H 5 § § ! a S 5 S 8 S i g s 1 1 1 lU tr o c '-< £ ‘s £ n o x x u + V < ------ - H u l 2 + *9 >•...
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5.2-41 _ oc < < ^ UJ o <? -> -i 2 to 0 . 2 2 3 < UJ UJ CL 111 U l O S t t O o < O C O C — 1 0 12 14 16 18 20 22 24 26 D O D o a n o a n a o D D □...
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5.2 - 42 UNIT DESCRIPTIONS — I l R 4 ,s g I I ■*« I R4132 JU133 CRT SOCKET RC.B. BAS21 ST8269 62XB4C8V2 BZXB4018 970428 BZX&4-B24 Lay-out 2 - Small component side of XYZ amplifier unit A2-100MHz...
UNIT DESCRIPTIONS 5.2 - 43 5.2.10 Location List A2-100 MHz version ’-L’ means that the component is located on the side with the large components. Otherwise the component is located on the side with small components. C1001 C11 C2131 B6 C3131 C5 C4124C1 C1002C11...
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UNIT DESCRIPTIONS 5.2 - 48 TO CRT D14-364GH/123 R4191 VFSHF1 YFSHF YFSHF2 A2 (100 MHz) - Diagram 2a ; Final Y output stage...
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UNIT DESCRIPTIONS 5.2 - 49 DC LEVEL SHIFT XTEXT XZ-CONTROL LOCAL SUPPLY FILTERING CALIBRATE X • SOXN +31XR A2 (100 MHz) - Diagram 3a ; Final X amplifier and control...
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UNIT DESCRIPTIONS -12XNO DC LEVEL SHIFT XTEXT XZ-CONTROL N2002 TOA 8444 LOCAL SUPPLY FILTERING -5®a -58XN0 -saxR...
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5.2 - 49 +10)R €F -»5XM0 M l 77 C2178 ■ ■ AC:4SVtt 0OVB *10 DC: 0V C2173 C2171 R2176 " " ^ ^ ~ | 316K XCX/TO ___ I 26K7 XHFADJ ♦ 5XN0 CffTQFH grroR . XZ-CONTROL N2002 TOA 6444 CAUBRATE X R2303...
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5.2 - 50 UNIT DESCRIPTIONS ♦50ZN +50ZN +50ZN -12ZNO FINAL Z-AMPURER ENDSTAGE FOCUS V9113 BFQ2S2A Max Intana: -30V + V N Mki. Intana. ZOUTF R3191 FOCUS-AA X2301/8 C3131 C3134 ♦a.azNO R3102 H l£ 5 ZDftlFO ZDRF1 -S8ZF +50ZN +50ZN -50ZN R N AL Z-AMPURER ENDSTAGE INTENS R3207...
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-12ZNO | DC LEVEL SHIFT Z-TRACS Z-RIPPLE SUPPRESS | LOCAL SUPPLY FILTERING R3411 SfiZF •58ZN0 -saa N20<...
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5.2 - 50 UNIT DESCRIPTIONS +50ZN +50ZN -50ZN +18ZND ■+50ZN C3412 100n REF NR TYPE +12ZND N3001_________ OQQ229 N3002 TDA8444 , C3416 1 lOrt +31 a , C3410 C3419 ST8273 970420 1 10« A2 (100 MHz) - Diagram 4a ; Final Z amplifier...
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UNIT DESCRIPTIONS 5.2 - 51 FOCUS LEVELSHIFTER A2 (100 MHz) - Diagram 5a ; Modulator/demodulator and focus control...
5.3-1 UNIT DESCRIPTIONS MICROPROCESSOR A3 5.3.1 Description A3 Introduction The unit can be seen as the heart of the oscilloscope. It controls all oscilloscope functions and receives input signals from the following sources: the rotary and push button knobs present at front unit A4 and CRT controls unit A5. commands from an external computer that are applied to the RS232 interface that is part of microprocessor D1001.
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5.3-2 UNITS DESCRIPTION Diagram 2 The resistance value of the indication ring in the probe at channels 1,2, 3 and 4 is present between ground and pin 13, 14, 15 and 12 of multiplexer D1008 respectively. The analog probe resistance value results in a certain DC voltage that is switched to ADC input PTEST-XA of the processor D1001.
5.3-3 UNITS DESCRIPTION The signal ZINFO-LT that comes from pin 80 of D1401 determines the intensity of the text and cursors. This happens via the output current signals ZTXTO and ZTXT1 that are in opposite phase. They originate from the circuit with V1448, V1449, V1443, V1444 and V1446. Intensity is also controlled by the front panel INTENS TEXT rotary that influences the DAC output signal INTRDO.
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5 . 3 - 4 UNITS DESCRIPTION 'w ' TBHOTXT HOLD OFF INDICATION FOR TEXT IC X1101:05 R1411:04 TRASEP TRACE SEPARATION CONTROL SIGNAL R1127:03 X1501:05 UFODAVLT FRONT WRITES TO MICROPROCESSOR X1101:05 D1001:01 UFOWR-LT MICROPROCESSOR WRITES TO FRONT D1016:01 X1101:05 VAR1 CH1 VARIABLE GAIN CONTROL SIGNAL R1135:03 X1501:05...
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G > □ *< +6VBAT - DK)1 0*06 oioe 0*03 0*07 0104 0*00 NRFO Q - - O oS S « NOAC ° S 8 D O S B D HOLDOFF HTBVAR LEVDTB POS4 P083 POS2 POS1 C31 c 631 o XCAL -12V C90 e...
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HOLDOFF HTBVAA LEVDTB POS4 P083 POS2 POS1 X1101 X1101 C32 o B 3 2n A32 o C31 a B91 a A9i a XCAL YCAL S i- •12V C30 o ♦ 12V B 3 0 A30 o...
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X1101 X1101 CS2 g A32 g BS 2g C31 g B31 g AS1 o XCAL YCAL ■ 12V BSOg AS0 g C30 o ♦ 12V 020 g ♦ 12V POWEFHT C20 o A 2 0 FOCUS-OA +SVD B28 g A2S g C26 g ♦...
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R1102 R1104 | - R1101 R1679 R1672 R1071 B1674 ~[- D1402 'N j HI 406 H i402 >...
5.3- 7 UNIT DESCRIPTIONS 5.3.4 Location list Microprocessor unit A3 ’-L’ means that the component is located on the printed circuit board side with the large components. Otherwise the component is located on the side with small components (SMD’s: surface mounted devices).
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UNIT DESCRIPTIONS 5. 3-10 | RS232-C INTERFACE | | PROBE INDICATION INPUTS | X1101/C28 X1101/C2S X1101/B2S X1101/B28 01301 <488 01001*1 01001/84 01001/31 + 12VE BUZZER CIRCUIT 01302 1486 01012 T T L / xxxxx 01302 1488 T T L / XXXXX C1306 01302 1488...
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| PROBE IN D IC A T IO N IN P U T S | X1101/C26 BUZZE R C IR C U IT 01102 01301 74LS74 1400 / T T L x x x x x T T L / » £T &...
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UNIT DESCRIPTIONS 5. 3-10 | R S 232-C INTERFACE ] 01301 R1026 1006 V1018 8ZX84 C4V3 _ _ _ _ _ _ _ _ _ _ _ _ _ _ BUZZER a R C U IT 01301 T T L / xxxxx T ^ r i “...
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5.3-11 UNIT DESCRIPTIONS D1112 000244 DAC-POT CPAD04 CPAD05 CREDOS CPW X7 ----------- oA C P w n-a » . — ; » « « « « ♦2.SVRCF C l 123 MCI* MCI* ™ MCI* MC«« X c ,,0 > X C1M 2 r r r r r r r r i C l 101...
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5.3-11 C l 968 C1963 T 1 0 0 n I80u Diagram 3 - Potentiometer DAC and lEEE-option...
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5.3-12 UNIT DESCRIPTIONS | TEXT/CURSOR CONTBOL~~| G4«oi 12MG Diagram 4 - Text and cursor circuit...
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04401 12MG I TEXT/CURSOR MEMORY~| *12V NTRDO X1101«23 REF NR TYPE 01401 8264 D1402 PCF-3036 N1401 PACK? N'402 DAC10...
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5.3-12 UNIT DESCRIPTIONS TEXT/CURSOR CONTROL G4401 12MG Diagram 4 - Text and cursor circuit...
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UNIT DESCRIPTIONS CPADDRESS D1013 CPDATABUS D1012 X1101 X1101 CPAD01 CPADOO CPAD03 cp m xc CPADOO CPAD06 CPA09 CPAoe CPA11 CPA12 RE8QPT4.T R1016 ^ CPRO-LT C PW B-LT D1001/50 ^ 01001/3 ALE-KT 0PT1WHT D1103/11 D1001/40 ^ RQSORLT D1016/10 BAT1NTHT 01001/26 D1004/11 s e t R1064 DLENO-HT...
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5 .3 -13 R 1 1 2 2 ^ H O LD O FF INTTRA R1123 MTBVAR R1124 ^ LEVM TB R1125 LEVDTB R1126 T R A S E P R1127 PO S4 R112B 01007/10 VAR1 R1135 01010/2 PO S3 R1134 ^ 01000/17 VAR2...
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UNIT DESCRIPTIONS CPDATABUS R1016 D1001/50 01103/11 D1001/40 01016/10 R1063 R1066 V1431 D1001/30 D 1004/6 V1434 B 2 0 01001/41 D1016/15 R1452 R1444 R1121 R1461 V1013 ♦10VR EF I V1014 +SVD | FOCUS-OA + 12V •12V YCAL •PM33XX on ly O1010 7 «...
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5.3 -13 R1122 R1123 R1124 R112S R1126 R1127 R1128 R1135 01010/2 R1134 01000/17 R1133 R1132 R1131 C l 2 R1120 R1130 “ — c 8 1 5 C IS C1904 R14S3 R1464 TRASEP C1906 V1012 POST VAB4 V1011 C l 90S C1906 0 2 8 POS2...
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5.3-15 UNIT DESCRIPTIONS Item Description Ordering code 5.3.6 Parts list CAPACITORS 5322 122 32966 CAP.CERAMIC 63V 5% 39pF C 1002 63V 5% 39pF 5322 122 32966 CAP.CERAMIC C 1003 63V 10% 100nF 4822 122 33496 C 1004 CAP.CHIP 4822 122 33496 63V 10% 100nF C 1006 CAP.CHIP...
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5.3-16 UNIT DESCRIPTIONS Item Description Ordering code C 1811 CAP.CHIP 63V 10% 10nF 5322 122 34098 C 1812 CAP.CHIP 63V 10% 10nF 5322 122 34098 C 1814 CAP.CHIP 63V 10% 10nF 5322 122 34098 C 1815 CAP.CHIP 63V 10% 10nF 5322 122 34098 C 1816 CAP.CHIP...
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5. 3- 17 UNIT DESCRIPTIONS Item Description Ordering code INTEGR.CIRCUIT N74LS74AD PEL 5322 209 60993 D 1102 5322 209 81264 D 1104 GPIB P8291A D 1112 INTEGR.CIRCUIT OQ0244 5322 209 12468 D 1301 INTEGR.CIRCUIT MC1489ADR2 5322 209 30232 5322 209 30269 D 1302 INTEGR.CIRCUIT MC1488D MOT...
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5.3-18 UNIT DESCRIPTIONS Item Description Ordering code R 1057 RES.CHIP RMC1/8 1% 51E1 5322 111 91893 R 1058 RES.CHIP RMC1/8 1% 51E1 5322 111 91893 R 1059 RES.CHIP RMC1/8 1% 100E 4822 051 51001 R 1061 RES.CHIP RMC1/8 1% 51E1 5322 111 91893 R 1062 RES.CHIP...
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5.3- 19 UNIT DESCRIPTIONS Item Description Ordering code 5322 116 81794 R 1429 RC-02H 1 % 2k15 5322 116 80427 R 1430 RC-02H 1% 1k R 1431 RC-02H 1 % 2k15 5322 116 81794 R 1432 RC-02H 1% 1k47 5322 111 91902 R 1433 RC-02H 1% 1k 5322 116 80427...
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5.3 - 20 UNIT DESCRIPTIONS Item Description Ordering code V 1016 DIODE.CHIP BZX84-C4V3 PEL 5322 130 80256 V 1401 BC848C 5322 130 42136 V 1421 BC858C 4822 130 42513 V 1431 BC858C 4822 130 42513 V 1432 BAV99 5322 1 30 34337 V 1433 BAV99 5322 130 34337...
5.4-1 UNIT DESCRIPTIONS FRONT UNIT A4 5.4.1 Description Diagram 1 The front unit incorporates several keys and a number of rotary knobs that are read by a microcomputer D5001. This microcomputer can communicate with the instrument’s main microprocessor on unit A3 via connector X5002. The communication from front unit A4 to unit A3 occurs via buffer D5003.
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UNIT DESCRIPTIONS 5.4.3 Key switches Digital oscilloscopes: PM3394A, PM3392A, PM3384A , PM3382A and PM3380A Analog oscilloscopes: PM3094, PM3092, PM3084 and PM3082 Test code is obtained via the UTIL MAINTENANCE menu. Refer to section 8.11.4.2 for detailed information. SWITCH DIGITAL OSC.
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UNIT DESCRIPTIONS 5.4- 3 S5051 ON CH4 ON CH4 S5052 500 CH4 500 CH4 S5053 TRIG CH3 TRIG CH3 S5054 TRIG CH2 TRIG CH2 S5056 TRIG CH1 TRIG CH1 S5057 ON CH1 ON CH1 S5058 AMPL V CH1 AMPLVCH1 S5059 TEXT OFF TEXT OFF S5061...
UNIT DESCRIPTIONS 5.4.4 Unit lay-outs T O X5201 O N CRT C O NTRO L A5 I O C O | | —I D C G C —I —|...
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5 .4 -5 TO X 1004 O N C O N N E C TO R - BO ARD A10 X5002 ± 1 □ □ CPADOO ± 3 □ □ 4 CPAD01 ± 5 □ □ CPAD02 ± 7 □ □...
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UNIT DESCRIPTIONS 5.4.4 Unit lay-outs TO X5201 O N CRT CO N TR O L A5 H cc c c - IH...
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5 . 4 - 5 TO X1004 O N C O N N E C TO R - BO ARD A10 X 5002 ± □ □ CPADOO ± 3 □ □ 4 CPAD01 ± 5 □ □ CPAD02 ± 7 □ □...
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UNIT DESCRIPTIONS 5. 4- 6 "c B ” J _ 3 R5121 R5164 R5165 t il « 3 S 2 3 R5166 R5102 R5168 V5008 V5009 R5169 £ > R5170 R5124 R5128 R5123 ■ w R5172 « c <3 > 3 R5173 C5173 R5171 C5171 C5155...
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R5121 R5164 R5165 R5166 R5102 R5168 . n n n n n n n n.n n R5156 R5169 D5002 R5170 U U U U ' D ' U U U U U R5172 n n n n n n n D5004 - r ~ u u u u u u u...
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UNIT DESCRIPTIONS 5. 4- 6 « 3 o> V5008 V5009 5> R5128 R5123 |C5155 R5107 R5106 C5156 R5126 1 C □ ST8284 870428 X I______C l n _______n BASIS BC848C ---□ --- ---□ --- Lay-out 15 - Small component side of front unit A4...
5 .4- 9 UNIT DESCRIPTIONS Item Description Ordering code 5.4.6 Parts list CAPACITORS C 5001 CAP.CERAMIC 63V 5% 39pF 5322 122 32966 C 5002 CAP.CERAMIC 63V 5% 39pF 5322 122 32966 C 5150 CAP.CHIP 63V 5% 100pF 5322 122 32531 C 5151 CAP.CHIP 63V 5% 100pF...
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5.4-10 UNIT DESCRIPTIONS Item Description Ordering code R 5007 SWITCH, ROTARY 15-SL.PHILICODER 5322 105 90036 R 5008 SWITCH,ROTARY 15-SL.PHILICODER 5322 105 90036 R 5009 SWITCH,ROTARY 15-SL.PHILICODER 5322 105 90036 R 5011 SWITCH, ROTARY 15-SL.PHILICODER 5322 105 90036 R 5012 SWITCH, ROTARY 15-SL.PHILICODER 5322 105 90036 R 5013...
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5.4 - 11 UNIT DESCRIPTIONS Item Description Ordering code SEMICONDUCTORS BAS 16 PEL 5322 130 31928 V 5001 DIODE.CHIP V 5002 DIODE,CHIP BAS 16 PEL 5322 130 31928 5322 130 31928 V 5003 DIODE.CHIP BAS16 PEL V 5004 DIODE.CHIP BAS16 PEL 5322 130 31928 V 5006 BAS16 PEL...
UNIT DESCRIPTIONS 5.5-1 CRT CONTROLS UNIT A5 5.5.1 Description Each rotary can occupy 4 different states. A rotary incorporates a rotor contact that can make contact with one of the two stator contacts. It is also possible that the rotor makes no contact. The last possibility is that the rotor makes contact with both stator contacts.
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5.5-2 UNIT DESCRIPTIONS 5.5.2 Unit Lay-outs c l a 2 fA7?l BAV99 a1, c2 F R O M X 5 0 0 1 O N F R O N T A 4 X 5 2 0 1 1 2 11 1 0 A §...
5 . 5 -4 UNIT DESCRIPTIONS Item Description Ordering code 5.5.4 Parts list SEMICONDUCTORS V 5201 DIODE,CHIP BAV99 PEL 5322 130 34337 V 5202 DIODE,CHIP BAV99 PEL 5322 130 34337 V 5203 DIODE,CHIP BAV99 PEL 5322 130 34337 V 5204 DIODE,CHIP BAV99 PEL 5322 130 34337...
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5.6-1 UNIT DESCRIPTIONS POWER SUPPLY A6 5.6.1 Description A6 Diagram 1 Diagram 1 comprises the following circuit parts: input circuit converter circuit line trigger circuit Input circuit Input to the circuit is the mains voltage. The following voltages are allowed: AC voltage between 90 and 250 V Theoretically a DC voltage between 100 and 380 V can be applied.
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5.6-2 UNIT DESCRIPTIONS To reduce the switching losses in V1019, a dV/dt limiter, often called “snubber", is used. C1021 decreases the dV/dt of the collector voltage of V1019 during switching off, as the current to the transistor can pass during a certain time through C1021. This slowing down of the collector voltage will reduce the switching losses during switching off.
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5. 6- 3 UNIT DESCRIPTIONS Illumination control The illumination of the graticule must be variable. For this reason the illumination voltage can be varied between about 2 and 28 V. Control of the illumination amplifier V1148 takes place by means of the signal DAC2, level about 1.7 to 4 V.
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5 .6-4 UNIT DESCRIPTIONS Secondary output circuitry The secondary output circuits consist of rectifier diodes and buffer capacitors, followed by chokes and capacitors for ripple suppression. The output circuits are protected against overload by the under voltage protection. Over and under-voltage protection To protect the oscilloscope circuitry against over-voltage and the supply circuits against overload, the power supply is provided with a protection circuit.
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UNIT DESCRIPTIONS 5. 6-5 5.6.3 Unit lay-outs TO X2401 ON FINAL X-Y-ZA2 TO FAN TO BATT X1001 X1004 X10Q6 ST8290 970420 □ □ □ □ □ T T T T T T □ T T T T T T T T T T □...
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UNIT DESCRIPTIONS 5.6.3 Unit lay-outs TO X2401 ON...
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X1003 C1006 TO MAINS INPUT X1003 ST8290 970420 Lay-out 8 - Wire component side of power supply unit A6...
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5 . 6- 6 UNIT DESCRIPTIONS ST8291 770426 Lay-out 9 - Micro miniature component side of power supply unit A6...
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5 .6- 6 UNIT DESCRIPTIONS BASIS : A6p BAS31 B2C84-C5V1 22p 8CS48C:1Lp 8C8S«C 3Lp BFB20 1 V B FB S1 tWp Lay-out 9 - Micro miniature component side of power supply unit A6...
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UNIT DESRIPTIONS 5.6-7 5.6.4 Location list Power Supply unit A3 ’-L’ means that the component is located on the printed circuit board side with the large components. Otherwise the component is located on the side with small components (SMD’s: surface mounted devices).
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5. 6-8 UNIT DESRIPTIONS V1103 C4 V1149 A1-L V 1214B 8-L V1279 B8 V1104 D4 V1201 B8-L V1216 B6-L V1280 B8 V1106 C4 V1203 D8-L V 1226B 4 V1281 B9 V 1107C 4 V 1204C 8-L V1241 C9 V1283 B9 V1108 B5-L V1206 C8-L V1242 D9...
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UNIT DESCRIPTIONS 5. 6 - 9 5.6.5 Circuit diagrams VOLTAGE SWITCH CONVERTER dv/dt STABILIZER CONTROLLER SWITCH LIMITER L1001 | 100V—375V I taopH Diagram 1 - Converter circuit...
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UNIT DESCRIPTIONS 5.6.5 Circuit diagrams LI 001 fKfcjH...
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5 . 6 - 9 VOLTAGE SWITCH CONVERTER d v/dt STABILIZER CONTROLLER SWITCH LIMITER L1001 | 1Q O V — 37SV I tacipH Diagram 1 - Converter circuit...
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5. 6-10 UNIT DESCRIPTIONS X10O6 TO TUBE REAR MMEL A 2 * | EHT CONVERTER | CONNEC8A10 L1101 X1001 I-------------1 R1118 51 El Ct 1121 100p R1119 • l 51E1 citoe r u m C1109 2K37 R1112 464E , C l 107 V1103 V1104 1 100n...
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5.6-16 UNIT DESCRIPTIONS Item Description Ordering code R 1049 RES.CHIP RC-02H 1% 100E 4822 051 51001 R 1051 RES.CHIP RC-02H 1% 6K19 4822 051 56192 R 1052 RES.CHIP RC-02H 1% 7K5 4822 051 57502 R 1054 RES.CHIP RC-02H 1% 100E 4822 051 51001 R 1056 RES.CHIP...
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UNIT DESCRIPTIONS 5.6-17 Item Description Ordering code R 1234 RES.CHIP RC-02H 1 % 4K22 4822 051 54222 R 1235 RES.CHIP RC-02H 1% 1K 4822 051 51002 R 1236 RES.CHIP RC-02H 1% 215E 4822 051 52151 R 1238 RES.CHIP RC-02H 1% 5K11 4822 051 55112 R 1239 RES.CHIP...
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5.6-18 UNIT DESCRIPTIONS Item Description Ordering code V 1046 DIODE,CHIP BZX84-C5V1 PEL 5322 130 32835 V 1100 DIODE BZX84-C11 4822 130 81338 V 1105 DIODE BZX84-C11 4822 130 81338 V 1101 TRANSISTOR,CHIP BC848C PEL 5322 130 42136 V 1102 TRANSISTOR,CHIP BC858C PEL 4822 130 42513 V 1103...
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UNIT DESCRIPTIONS 5.6-19 Item Description Ordering code CONNECTORS X 1001 CONNECTOR 3-P SNG RT.ANG 5322 265 30433 X 1002 CONNECTOR 64-P PIN 2.54MM 5322 290 61087 X 1003 CONNECTOR 5-P SNG STRGHT 5322 265 30436 X 1004 CONNECTOR 2-P SNG RT.ANG 5322 265 20525 X 1006 CONNECTOR...
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UNIT DESCRIPTIONS 5.7-1 RESERVED FOR FUTURE EXTENSIONS...
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UNIT DESCRIPTIONS 5.8-1 RESERVED FOR FUTURE EXTENSIONS...
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UNIT DESCRIPTIONS 5.9-1 RESERVED FOR FUTURE EXTENSIONS...
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UNIT DESCRIPTIONS 5.10 CONNECTOR BOARD A10 5.10.1 Unit lay-out...
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5.10-1 f= U d = j 49 50 -------G= = 3 -------- A B C ST8295 970420 Lay-out 8 - lay-out of connector board A10...
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UNIT DESCRIPTIONS 5.10 CONNECTOR BOARD A10 5.10.1 Unit lay-out...
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5.10-1 c= J ] 49 50 - - - - - - - G = --------- A B C ST8295 970420 Lay-out 8 - lay-out of connector board A10...
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5.10.2 Circuit Diagrams X 1 0 0 3 °X" " V XCAL ' 2 V » -f 12V » °x C28 _ r *X" PROBE4 PROBE1 P908E2 PR06E3 * ■ " V s X ~ WTRDO YTXTO ZTXTO " V m e n "...
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UNIT DESCRIPTIONS 5.10-2 ------------------- — ------1 — X 1 0 0 3 X 1 0 0 8 X 1 0 0 8 X 1 0 0 3 ° B31 _ £ YCAL A31 i +5VD " V " V " V CA L X "...
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5.10.2 Circuit Diagrams X 1 0 0 3 X 1 0 0 3 " V ° X ° x ~ XCAL " V “ V ° X " " S " V " PROBE4 PROBE1 PA06E3 P906E2 “ Vi s X ~ WTROO YTXT1 ZTXTO...
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UNIT DESCRIPTIONS 5.10-2 A8 -----------------1 A3 — X 1 00 8 X 1 0 0 8 X 1 0 0 3 ° r ° r XCAL __ YCAL +5VD BO O "V POWER-WT FOCUS-QA PROBE1 PROBE2 REF ^ XTXTO ° x INTRDO XTXT1 "...
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UNIT DESCRIPTIONS X1009 X1009 + 5 V D + 5 V D + 5 V D + 5 V D D J 7 -5 V D -5V D / • -5 V D -5V A -5 V A -5 V A + 5 V A + 5 V A -1 8 V...
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5.10-3 X1004 X1004 “ I U F O R E S +12V U F O W R -L T C P D A V -H T ► + S V D ^ U F O R D - L T U F O D A V -L T C P A D 0 7 C P A D 0 6...
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UNIT DESCRIPTIONS X1009 X1009 + 5 V D + 5 V D + 5 V D + 5 V D -5 V D -5V D -5V D -5V A -5V A -5V A + 5 V A + 5 V A - 1 8 V - 1 2 V -1 2 V...
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5.10- 3 X1004 X1004 X1009 U F O R E S < U F O W R -L T < C P D A V -H T < < U F O R D - L T < U F O D A V -L T <...
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5.10-4 UNIT DESCRIPTIONS Item Description Ordering code 5.10.3 Parts list CONNECTORS X 1001 50-P DBL STRGHT 5322 265 61242 X 1002 50-P DBL STRGHT 5322 265 61242 X 1003 96-P 2.54MM 5322 267 51108 X 1004 P 1.25MMSTR 5322 267 60311 X 1006 64-P 2.54MM 5322 267 70308...
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UNIT DESCRIPTIONS 5.11 - 1 5.11 FACTORY INSTALLED OPTIONS 5.11.1 IEEE-OPTION This option enables the oscilloscope to be controlled by an lEEE-system using the SCPI protocol (SCPI = Standard Commands for Programmable Instruments). The IEEE connector is located at the rear panel of the oscilloscope.
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5.11 -2 UNIT DESCRIPTIONS Item Description Service ord code R 1001 12k1/ 1% 4822 051 51213 R 1002 1k1/ 1% 4822 051 51102 R 1003 1 k/1 % 4822 051 51002 R 1004 51E1/1 % 5322 111 91893 R 1006 5k11/1% 4822 051 55112 R 1007...
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UNIT DESCRIPTIONS 5.11-3 Fig. 1. Location of options Y-out and external trigger...
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UNIT DESCRIPTIONS 5.11-7 Introduction toexternal trigger option The External Trigger Input option provides an extra input at the rear of the oscilloscope. This input can be used as the trigger source for the Main Time Base (MTB). The option is factory-installable only. The external trigger requires a small printed circuit board, a rear panel BNC socket and a coaxial interconnection cable.
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5.11-8 UNIT DESCRIPTIONS CHARACTERISTICS SPECIFICATION ADDITIONAL INFORMATION INPUT VOLTAGE LIMITS See note 1 (d.c. + a.c. peak) ±400 V See note 2 Note 1: Apparatus should be properly grounded through the protective ground conductor of the power cord. Note 2: Up to 10 kHz;...
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UNIT DESCRIPTIONS 5.11 -9 Item Description Service ord code D 2031 HEF4053BT 5322 209 14481 R 1001 5322 116 53588 750k/0.25% R 2001 511 k/1 % 4822 051 55114 R 2002 511 k/1 % 4822 051 55114 R 2013 10M/5% 4822 051 10106 R 2014 10M/5%...
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5.11 -10 UNIT DESCRIPTIONS 01002 MTREXTSW-HD CNT4MT-HT Fig. 4. Printed circuit board lay-out of external trigger unit...
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UNIT DESCRIPTIONS C10Q2 | DC LIMITER*] C 20 03 + 1.SEXT lOOn V2002 BAS26 + /-1.8 V X2001 SOmV/dh EXTSKa V2002 C 2004 BAS28 100n C201 T !0 n -1.5EXT V2012 BAS28 | AC LIMITER*"] | SUPPLY VOLTAGES | X2011 + 1 2 V R2Q81 I 4E 7...
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5.11-11 AMPLIFIER AND LEVEL SHIFT C2Q23 X2018 REF NO +5EXT TYPE + 12EXT -9EXT -12EXT N2021 LF357 D2031 HEF*053 Fig. 5. Circuit diagram of external trigger unit...
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UNIT DESCRIPTIONS C1002 DC LIMITER "| | SUPPLY VOLTAGES"| X2011 R2061 + 12V f~ 4 E 7 ~ C2061 C 2062 S 47" " !0 0 n X2012...
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5.11-11 | AMPLIFIER AND LEVEL SHIFT | C2Q23 | AC LIMITER REF NO TYPE + 12EXT +SEXT -9EXT -12EXT N2021 LF357 D2031 HEF4053 Fig. 5. Circuit diagram of external trigger unit...
PERFORMANCE TEST 6 -1 PERFORMANCE TEST GENERAL INFORMATION WARNING: Before turning on the instrument, ensure that it has been installed in accordance with the Installation Instructions, outlined in Section 2 of the Operation Guide. This procedure is intended to: Check the instrument’s specification. Be used for incoming inspection to determine the acceptability of newly purchased instruments and/or recently recalibrated instruments.
Note: The digital multimeter and oscilloscope are not required for this test. Note: The FLUKE 5500A Multiproduct Calibrator is always used in SCOPE mode. The output signal must be taken from the BNC output ’Scope’. Type of instrument Required specification...
PERFORMANCE TEST 6 - 3 TEST PROCEDURE 6.3.1 Preliminary settings Test equipment: None Settings/procedure and requirements: If not present install 2 penlight (LR6) back up batteries in the holder at the rear panel of the oscilloscope. Turn on the oscilloscope under test. Press the STATUS and TEXT OFF keys simultaneously.
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Probe Adjust signal is distortion-free and has equal intensity. 6.3.3 Auto set This test checks the correct working of the AUTOSET function. Test equipment: Fluke 5500A mode: levsine (Alternative: constant amplitude sine wave generator SG 503) Test set-up: 5500A OSCILLOSCOPE UNDER TEST 5QQ CABLE Settings/procedure: Apply a 10 MHz sine wave signal of 600 mV (pp into 50£2) to input CH1;.
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PERFORMANCE TEST 6 - 5 Test set up: 5500A OSCILLOSCOPE UNDER TEST 500 CABLE Settings/procedure: Press the CAL key for a few seconds to start the autocal procedure. This takes approximately one minute. When ready, the oscilloscope is fine tuned to optimal accuracy. Apply a 50 Hz sine wave signal of 8 V(pp) to input CH1;...
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Verify that the deviation from the ideal straight line does not exceed 0.03 divisions in the center of screen and 0.1 divisions elsewhere. Test equipment: Fluke 5500A mode: wavegen, wave sine (Alternative: function generator PM5136) Test set-up: 5500A OSCILLOSCOPE UNDER TEST...
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Vertical deflection; deflection coefficients The vertical deflection coefficients of channels CH1, CH2, CH3, and CH4 are checked by means of a calibrated signal. Test equipment: Fluke 5500A mode: volt (Alternative: square-wave calibration generator PG 506) Test set up: 5500A OSCILLOSCOPE UNDER TEST...
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DC coupled mode. Repeat the settings and procedure for CH2, CH3, and CH4. In the PM3092 and PM3082, the test of the GND function is skipped for CH3 and CH4.
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Set CH1 to 0.1 V/div. Adjust the input signal to an amplitude of exactly 6 divisions. Slowly increase the frequency to 200 MHz (PM3092, PM3094) or 100 MHz (PM3082, PM3084) and verify that the displayed amplitude does not drop below 4.2 divisions.
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The oscilloscope must be capable of displaying signal amplitudes that are larger than the screen. In practice, a low frequency signal with an amplitude equivalent to 24 divisions must be displayed with no distortion. Test equipment: Fluke 5500A mode: levsine (Alternative: constant amplitude sine wave generator SG 503) Test set up: OSCILLOSCOPE UNDER TEST 5500A...
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PERFORMANCE TEST 6- 11 Settings/procedure: Apply a 50 MHz (PM3092/94) or 25 MHz (PM3082/84) sine wave signal of 2.4 V(pp into 50Q) to input CH1 and press the AUTOSET key. Use a 50Q termination. Use the internal termination when avaialble.
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OSCILLOSCOPE UNDER TEST 50£i CABLE Settings/procedure: Apply a 200 MHz (PM3092, PM3094) or 100 MHz (PM3082, PM3084) sine-wave signal of 0.8V (pp into 500) to input CH1. Press the AUTOSET key. Use a 50Q termination. Use the internal termination when available.
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The common mode rejection ratio (CMRR) is a measure of susceptibility to common mode signals. This susceptibility is verified in this test. Test equipment: Fluke 5500A mode: levsine (Alternative: constant amplitude sine wave generator SG 503) Power splitter Test set up:...
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The linearity of the vertical amplifier is checked by moving a signal with a fixed amplitude vertically over the entire screen area. Test equipment Fluke 5500A mode: wavegen, wave square (Alternative: function generator PM5136) Test set up: 5500A OSCILLOSCOPE UNDER TEST...
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This delay is verified in the following test. Test equipment Fluke 5500A mode: edge (Alternative: square-wave calibration generator PG 506) Test set-up: 5500A OSCILLOSCOPE UNDER TEST...
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CH1; the CH4 settings are equal to CH2. For the PM3092 and PM3082 the following steps are required to check CH3 and CH4: Press the ON keys of CH3 and CH2; CH3 is now on and CH2 is off.
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Verify that the delay difference between the two displayed signals is less than 0.25 ns. This equals 0.13 divisions in PM3092 and PM3094 or 0.05 divisions in PM3082 and PM3084. Repeat the above settings and procedure for CH3 and CH4.
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3 - Use 500 terminations. 4 - Set CH1 and CH3 to 0.1 V/div and input coupling to DC. 5 - Press 10x MAGN key and set MTB to 2 ns (PM3092) or to 5ns (PM3082). Press menukey TRIGGER MTB.
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MAIN TB display can be shifted so that they do not cover each other. 6.3.23 Horizontal deflection; X deflection The correct working of the X Y mode (X-DEFL ’on’) is tested. test equipment: Fluke 5500A mode: wavegen, wave sine (Alternative: function generator, PM5136) test set-up: 5500A OSCILLOSCOPE UNDER TEST...
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6.3.24 Horizontal deflection; main time-base deflection coefficients The deflection coefficients of the main timebase generator (MTB) are verified by means of a calibration signal. test equipment: Fluke 5500A mode: marker (Alternative: time marker generator TG 501) test set-up: 5500A OSCILLOSCOPE UNDER TEST...
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The horizontal MTB deflection coefficients can be varied in steps such as done in 6.3.24. A range of much finer steps can also be selected. Here, the accuracy of this range is checked. test equipment: Fluke 5500A mode: marker (Alternative: time marker generator TG 501) test set-up. 5500A...
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6.3.27 Horizontal deflection; delayed time-base deflection coefficients The deflection coefficients of the delayed timebase generator (DTB) are verified by means of a calibration signal. test equipment: Fluke 5500A mode: (Alternative: time marker generator TG 501) test set-up: 5500A OSCILLOSCOPE UNDER TEST...
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PERFORMANCE TEST 6 - 2 3 settings/procedure: Apply a 0.5 ms time marker signal to input CH1. Press the AUTOSET key. Use a 500 termination. For instruments with switchable 500 input impedance it is recommended to make use of this feature. Put CH1 in 0.2V/div. Select in the TRIGGER MTB menu level-pp ’off and ’dc’...
There is a certain instability in the starting point, the so called jitter, of the DTB. The maximum allowed jitter is checked in this test. test equipment: Fluke 5500A mode: levsine (Alternative: function generator PM5136) test set-up: 5500A OSCILLOSCOPE UNDER TEST...
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Verify that the jitter of the DTB is not more than 0.4 divisions. (1 part per 25000) 6.3.30 Horizontal deflection; X deflection coefficient via CH1 The amplification of the horizontal amplifier via the vertical input amplifier is checked. test equipment: Fluke 5500A mode: volt (Alternative: square-wave calibration generator PG 506) test set-up: 5500A OSCILLOSCOPE UNDER TEST...
Verify that a horizontal line of 4.3 to 7.7 divisions is displayed when the line voltage is 220 V (rms). 6.3.32 Horizontal deflection; high frequency response In this test, the bandwidth of the horizontal amplifier is checked. test equipment: Fluke 5500A mode: levsine (Alternative: constant amplitude sine wave generator SG 503). test set-up: 5500A OSCILLOSCOPE UNDER TEST...
6.3.33 Maximum phase shift between horizontal and vertical deflection There will be a certain phase shift between the horizontal and vertical amplifier. The value of this shift is measured here. test equipment: Fluke 5500A mode: wavegen, wave sine (Alternative: function generator, PM5136) test set-up: 5500A OSCILLOSCOPE UNDER TEST...
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The trigger sensitivity depends on the amplitude and frequency of the trigger signal. In this test the main timebase trigger sensitivity via the CH1, CH2, CH3 and CH4 inputs is checked. test equipment: Fluke 5500A mode: levsine (Alternative: constant amplitude sine wave generators (SG 503 + SG 504) test set-up:...
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PERFORMANCE TEST 6 - 2 9 6.3.35 MTB triggering PM3082/3084; trigger sensitivity via CH1, CH2, CH3 and CH4 The trigger sensitivity depends on the amplitude and frequency of the trigger signal. In this test the main timebase trigger sensitivity via the CH1, CH2, CH3 and CH4 inputs is checked.
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6 - 3 0 PERFORMANCE TEST 6.3.36 MTB/DTB triggering; trigger sensitivity TVL-TVF This test chocks the trigger sensitivity for television line- and field synchronization pulses. test equipment: TV pattern generator with video output (PM5418) test set-up: PM5418 OSCILLOSCOPE UNDER TEST 750 CABLE settings/procedure: Apply a video signal to input CH1 with an amplitude of about 1V synchronization pulse...
The trigger sensitivity depends on the amplitude and frequency of the trigger signal. In this test the main timebase trigger sensitivity via the CH1, CH2, CH3 and CH4 inputs is checked. test equipment: Fluke 5500A mode: levsine (Alternative: constant amplitude sine wave generators (SG 503 + SG 504) test set-up:...
6 - 3 2 PERFORMANCE TEST 6.3.38 DTB triggering PM3082/3084; trigger sensitivity via CH1, CH2, CH3 and CH4 The trigger sensitivity depends on the amplitude and frequency of the trigger signal. In this test the main timebase trigger sensitivity via the CH1, CH2, CH3 and CH4 inputs is checked.
PERFORMANCE TEST 6 - 3 3 6.3.39 Z-MOD sensitivity This test checks the sensitivity of the Z modulation facility. test equipment: Fluke 5500A mode: wavegen, wave square (Alternative: function generator PM5136) T-piece test set-up: 5500A OSCILLOSCOPE UNDER TEST settings/procedure and requirements: Apply a 1 kHz square-wave signal, duty cycle 50%, amplitude between 0 to +2.5V, to input...
6 - 3 4 PERFORMANCE TEST 6.3.40 Probe Adjust signal; frequency and output voltage The Probe Adjust (CAL) signal is a calibration signal with fixed frequency and voltage. In this test, the values of frequency and voltage are checked. test equipment: None test set-up: OSCILLOSCOPE UNDER TEST...
CALIBRATION ADJUSTMENT PROCEDURE 7 -1 CALIBRATION ADJUSTMENT PROCEDURE INTRODUCTION The calibration adjustment procedure can be split up in two: Manual adjustment Automatic calibration (AUTOCAL). All calibration is done with the oscilloscope’s cabinet closed. This eliminates calibration inaccuracies due to temperature changes. Manual calibration data are protected by a keyword and a seal and must be changed by qualified personnel only.
7 - 2 CALIBRATION ADJUSTMENT PROCEDURE HORIZONTAL (X) GAIN AND OFFSET Press softkey SCREEN CALIBR. Select ’x-gain’ with the softkeys. Adjust the TRACK (gain) and A (offset) rotary so that the two vertical lines coincide exactly with the 3rd and 9th graticule line. ST6293 Figure 7.11 Position of lines for horizontal (X) and vertical (Y) gain and offset calibration TEXT STABILITY AND X-OFFSET...
CALIBRATION ADJUSTMENT PROCEDURE 7 - 3 AUTOCAL PROCEDURE Press the CAL key during 2 seconds. Within 2 minutes the instrument automatically does its main calibrations. Watch the CRT and check that no errors are reported. If errors are mentioned, the oscilloscope will need corrective maintenance.
Select ’If ch3’ with the TRACK rotary. Select ’Ifxl 00' with the softkeys: the A sign is displayed behind ’Ifxl 00’. This is not necessary in PM3082/PM3092: for these instruments only the step 'Ifxl 0’ has to be adjusted. Switch CH3 to ON and CH2 off.
CALIBRATION ADJUSTMENT PROCEDURE 7 - 5 7.13 HF SQUARE-WAVE RESPONSE FINAL Y AMPLIFIER Select ’hf y’ with the TRACK rotary. Apply a 1V/1 MHz square-wave signal with a rise-time faster than 1 nsec to CH1. This signal is delivered in the ’edge’ mode of the calibrator. As alternative you may use the fast-rise output of the square-wave calibration generator.
7 - 6 CALIBRATION ADJUSTMENT PROCEDURE Increase the frequency of the sinewave up to 100 MHz (for 100 MHz instruments) or 200 MHz (for 200 MHz instruments) and check that the amplitude on the screen does not become smaller then 4,2 div.
CORRECTIVE MAINTENANCE PROCEDURES 8 -1 CORRECTIVE MAINTENANCE PROCEDURES DISMANTLING THE INSTRUMENT 8.1.1 General information This section contains the dismantling procedures required for the removal and testing of components during repair. All circuit boards removed from the instrument must be adequately protected against damage, and all normal precautions regarding the use of tools must be observed.
8.2.1 Standard parts Electrical and mechanical replacement parts can be obtained through your local FLUKE organization or representative. However, many of the standard electronic components can be obtained from other local suppliers. Before purchasing or ordering replacement parts, check the parts list for value, tolerance, rating and description.
CORRECTIVE MAINTENANCE PROCEDURES 8 - 3 SOLDERING TECHNIQUES 8.4.1 General soldering techniques Working method: Carefully unsolder the soldering tags of a semi-conductor one after the other. Remove all superfluous soldering material. Use desolder braided wire; ordering code: 4822 321 40042. Check that the leads of the replacement part are clean and pre-tinned on the soldering places.
8 - 4 CORRECTIVE MAINTENANCE PROCEDURES REMOVING THE UNITS, MECHANICAL PARTS AND CRT NOTE: For installation, reverse the sequence. 8.5.1 Removing the rotary knobs Rotary knobs can be removed by simply pulling them off. The knobs have an integrated shaft and fixing device.
CORRECTIVE MAINTENANCE PROCEDURES 8 - 5 Removal of CRT controls unit A5: Remove the rotary knobs. Pull the two self-locking white plastic clamps. Take the unit out of the front frame. 8.5.4 Removal of the Power supply unit A6 WARNING: On the power supply unit there are many parts that carry dangerous high voltages.
8 - 6 CORRECTIVE MAINTENANCE PROCEDURES 8.5.6 Removal of Final XYZ amplifier unit A2 ATTENTION: On the XYZ unit there are parts that carry high voltages. If working on the unit under live condition cannot be avoided, it must be done by a qualified technician who is aware of the dangers involved.
CORRECTIVE MAINTENANCE PROCEDURES 8 - 7 8.5.7 Removal of unit at socket of CRT WARNING: On this unit there are parts that carry dangerous high voltages (-2.2 kV). Some of these voltages remain some time after disconnecting the instrument from the mains.
8 - 8 CORRECTIVE MAINTENANCE PROCEDURES 8.5.9 Removal of Cathode Ray Tube (CRT) IMPORTANT: Handle the CRT and its side connections carefully. Rough handling or scratching can cause the CRT to implode. When installing the CRT, first remove its protective cover. Then take care that its screen is pressed tight to the front side of the chassis.
CORRECTIVE MAINTENANCE PROCEDURES 8 - 9 TROUBLESHOOTING THE POWER SUPPLY WARNING: On the power supply there are many parts that carry dangerous high voltages. Some of these voltages remain some time after disconnecting the unit from the mains. Therefore, it is recommended to wait at least five minutes after having disconnected the unit from the mains, before removing the unit.
The Flash-ROM D1013 as listed in the parts lists is empty. After exchange it must be filled with operating software and calibration data. Also for this the oscilloscope must be sent to the nearest Fluke Service Center. 8.10 RECALIBRATION AFTER REPAIR After any electrical component has been renewed the calibration of its associated circuit should be checked, as well as the calibration of other closely-related circuits.
CORRECTIVE MAINTENANCE PROCEDURES 8- 11 8.11 TROUBLE SHOOTING TOOLS This family of analog oscilloscopes offers a number of possibilities to trace a fault. The tests 1 ... 4 can be done quickly and easily; however they require that parts of the oscilloscope function correctly. The display part and power supply must be OK.
8 - 1 2 CORRECTIVE MAINTENANCE PROCEDURES 8.12.2 Introduction to diagnostic tests The tests are accessible via the softkey menu’s. A good knowledge of the circuitry of the oscilloscope is necessary to take advantage of these tests. Refer to chapter 5 ’Unit descriptions’ for additional information and circuit diagrams.
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CORRECTIVE MAINTENANCE PROCEDURES 8 - 1 3 C-8US H ff-B U S 12C-BUS STB302 970426 Figure 8.5. Configuration of mmicroprocessor control part...
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CORRECTIVE MAINTENANCE PROCEDURES /^-MICROPROCESSOR A4-FRONT UNIT A5-CRT CONTROLS 6 ANALOG INPUTS READ ONLY MEMORY / ------------------- ---------------------------------------- N o □ □ □ □ D1001 C EN TR A L P RO C ESS O R RANOOM ACCESS MEMORY ANALOG DAC POT VOLTAGES D1112 0..10V...
AC DC GND CH4 ON CH4 AMPL mV CH4 AMPL V CH4 Note: the table with keys is based upon PM3094. In other oscilloscope versions (PM3082, PM3084, PM3092) some of the keys are not present or have a different function.
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8 - 1 6 CORRECTIVE MAINTENANCE PROCEDURES 8.12.4.3 Repair tools / I2cbus This test displays the data (SDA) that is send by the microprocessor to a number of addressable devices. Synchronization is achieved via SCL. Each data block sent by the microprocessor is preceeded by an address on which the device can respond.
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CORRECTIVE MAINTENANCE PROCEDURES 8 - 1 7 The configuration of group 0 and 1 is shown in the table: Group Enable signal Buffers Name of circuit diagram STROBEO-HT D9003 Control circuits D9004 Control circuits STROBE1-HT D9011 MTB trigger D9008 Time base logic D9007 Delayed time base D9012...
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8 - 1 8 CORRECTIVE MAINTENANCE PROCEDURES 8.12.4.7 Repair tools /D AC Thoughout the oscilloscope there are several digital-to-analog converters (DAC’s) that are controlled by the microprocessor. The ’REPAIR TOOLS’ menu enables to select a certain DAC output (via TRACK) and to determine the output voltage (via A) at this output. After having opened the instrument, the voltage can be measured with a voltmeter or oscilloscope.
CORRECTIVE MAINTENANCE PROCEDURES 8 - 1 9 For D1112 (unit A3) refer to the table below: Y-value Pin number Pin name POS CH1 POS CH2 POS CH3 POS CH4 VAR CH1 VAR CH2 VAR CH3 VAR CH4 X.12 VAR MTB X.11 LEVEL MTB X.10...
8 - 2 0 CORRECTIVE MAINTENANCE PROCEDURES The figure shows this. If a calibration step is not completed succesfully, this is indicated at the end of the autocal procedure. This is displayed on the CRT with a message: ’ERROR DURING AUTOCALIBRATION’ Via key sequence UTILITY> MAINTENANCE, you can reach a screen where an error code YXX is displayed in the bottom text line.
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CORRECTIVE MAINTENANCE PROCEDURES 8-21 The number of the circuit diagram is given for the 200 MHz version. For the 100 MHz version the corresponding circuit diagram should be used. IMPORTANT: The error code lists are a usefull help in faultfinding; in many cases a displayed error code will point to the defective circuit part.
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8 - 2 2 CORRECTIVE MAINTENANCE PROCEDURES Autocalibration of horizontal gain and offset As input signals are used signals generated by generator circuit (D7004, N7014, N7015) on the DTB circuit diagram (unit A1). The accurate output signals are MCLOOP (MTB) and DCLOOP (DTB). The output signals are measured on the X-deflection plates of the CRT.
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CORRECTIVE MAINTENANCE PROCEDURES 8 - 2 3 VAR gain jump ATCAL applies 0 V to the attenuator. VAR4 is varied between min and max in various sensitivity positions. The microprocessor adjusts PA40FFSET to minimal trace jump (YCAL). Error Calibration step Input Control signal Output...
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CORRECTIVE MAINTENANCE PROCEDURES 8 - 2 5 Autocalibration of trigger offset The correctness of these adjustments is checked for MTB (DTB) via signal MTBCALTST (DTBCALTST). Trigger offset MTB Adjustment of the signal path between D6541 (final stage), D8004, V8013, V8014, D6011 is done here.
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8 - 2 6 CORRECTIVE MAINTENANCE PROCEDURES Autocal of normal/invert position and gain adjustment Normal invert position ATCAL applies 0 V (GND) to the CH4 attenuator. YCAL is adjusted to mid screen via POS4 in normal and in inverted mode. Then CH3 (normal mode only), CH2 and CH1 (normal mode only) are adjusted. •...
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CORRECTIVE MAINTENANCE PROCEDURES 8 - 2 7 Error Calibration step Input Control signal Output code Channel 2 Offset normal 1 ATCAL ' ’ ' POS2 YCAL Offset invert I " (A1/2/R2008) (A1/8/R2308) (A2/2/R1309) Gain position >- Gain x1, 2mV/div Gain /2.5, 2mV/div Gain x1, 5mV/div "t ;...
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8 - 2 8 CORRECTIVE MAINTENANCE PROCEDURES Autocal of trigger gain MTB/DTB Via ATCAL a signal giving vertical deflection is applied. Coupling is dc and LEVMTB is varied such that the upper and lower level of the trigger gap are passed. The gain is adjusted via MTRSEN.
SAFETY INSPECTION AND TESTS 9- 1 SAFETY INSPECTION AND TESTS AFTER REPAIR AND MAINTENANCE IN THE PRIMARY CIRCUIT GENERAL DIRECTIONS Take care that the creepage distances and clearances have not been reduced. Before soldering, bend the wires through the holes of the solder leads, or wrap the wires around the leads in the form of an open U, or, maintain wiring ridigity by cable clamps or cable lacing.