Equipment information

Fluke PM3380 Oscilloscope
Manufacturer:
Model:
PM3380
Date:
1996
Category:
Group:
Description:
Autoranging Combiscope
Service Manual
Manual Type:
Service Manual
Pages:
473
Size:
9.06 Mbytes (9500776 Bytes)
Language:
english
Revision:
Manual-ID:
4822 872 05366
Date:
01 June 1996
Quality:
Scanned document, all readable.
Upload date:
20 January 2018
MD5:
b6036e084816062e5b53e83c44d67f5e
Downloads:
1748

Information

1.1 INTRODUCTION ... 1-1 1.2 SAFETY PRECAUTIONS ... 1-1 1.3 CAUTION AND WARNING STATEMENTS ... 1-1 1.4 SYMBOLS ... 1-1 2 CHARACTERISTICS 21 2.1 VERTICAL ... 2-2 2.1.1 Channels ... 2-2 2.1.2 Deflection Modes (Analog Only) ... 2-2 2.1.3 Bandwidth ... 2-3 2.1.4 Attenuator ... 2-3 2.1.5 Input Characteristics ... 2-4 2.1.6 Coupling ... 2-4 2.1.7 Dynamic Range ... 2-4 2.1.8 Position Range ... 2-4 2.1.9 Trace Separation ... 2-4 2.1.10 Input Voltage Limits ... 2-5 2.1.11 Step Response ... 2-5 2.1.12 Signal Delay ... 2-6 2.1.13 Vertical Accuracies ... 2-6 2.2 TIMEBASE ... 2-7 2.2.1 Timebase (modes) ... 2-7 2.2.2 Timebase Settings (Analog Mode Only) ... 2-7 2.2.3 DTB Delay (Analog Mode Only) ... 2-7 2.2.4 Timebase Settings (Digital Mode Only) ... 2-8 2.2.5 Timebase Delay (Digital Mode Only) ... 2-9 2.2.6 DTB Delay (Digital Mode Only) ... 2-9 2.2.7 Analog Timebase Accuracies ... 2-9 2.2.8 Delaytime Accuracy (Analog Mode) ... 2-9 2.2.9 DTB Jitter In Starts (Analog Mode) ... 2-10 2.2.10 Timebase Accuraries (Digital Mode) ... 2-10 2.2.11 DTB Jitter In Starts (Digital Mode) ... 2-10 2.2.12 External Horizontal Deflection ... 2-10 2.2.13 Horizontal Display Accuracy ... 2-10 2.3 TRIGGERING ... 2-11 2.3.1 Source ... 2-11 2.3.2 Modes ... 2-11 2.3.3 TV Systems ... 2-11 2.3.4 Coupling ... 2-11 2.3.5 Sensitivity ... 2-12 2.3.6 Slope ... 2-13 2.3.7 Level ... 2-13 2.3.8 Logic Triggering Timing (Digital Mode Only) ... 2-14 2.3.9 Trigger Accuracies ... 2-14 2.4 EVENT COUNTER ... 2-15 2.5 HOLD-OFF ... 2-15 2.6 PROCESSING ... 2-16 2.6.1 Preprocessing ... 2-16 2.6.2 Register Processing (Digital Mode) ... 2-16 2.7 TRACE MEASUREMENTS (DIGITAL MODE) ... 2-17 2.8 CURSORS ... 2-17 2.8.1 Cursor Control ... 2-17 2.8.2 Cursor Readouts ... 2-18 2.8.3 Cursor Accuracies ( Analog Mode) ... 2-18 2.8.4 Cursor Accuracies (Digital Mode) ... 2-18 2.9 DIGITAL ACQUISITION ... 2-19 2.9.1 Modes ... 2-19 2.9.2 Sample Rate ... 2-19 2.9.3 Multiplexed Channels ... 2-19 2.9.4 Trace Memory ... 2-19 2.9.5 Acquisition Time ... 2-20 2.9.6 Resolution ... 2-20 2.9.7 Registers ... 2-21 2.9.8 Register Manipulations ... 2-21 2.9.9 Digital Acquisition Accuracies ... 2-21 2.10 FRONT PANEL MEMORY ... 2-21 2.11 BLANKING OR Z-AXIS (ONLY FOR ANALOG TRACE) ... 2-22 2.12 DISPLAY ... 2-22 2.12.1 CRT ... 2-22 2.12.2 Modes ... 2-22 2.12.3 Vertical Display Manipulations (Digital Mode) ... 2-23 2.12.4 Horizontal Display Manipulations (Digital Mode) ... 2-23 2.13 EXTERNAL INTERFACES ... 2-24 2.13.1 Calibrator ... 2-24 2.13.2 Standard external interface ... 2-24 2.13.3 Optional external interfaces ... 2-25 2.13.4 Printers and plotters support ... 2-25 2.13.5 Real Time Clock ... 2-26 2.14 AUTO SET & CALIBRATION ... 2-26 2.14.1 Auto Set ... 2-26 2.14.2 Calibration ... 2-26 2.15 POWER SUPPLY AND BATTERY BACKUP ... 2-26 2.15.1 Power Supply ... 2-26 2.15.2 Battery Backup ... 2-27 2.16 MECHANICAL CHARACTERISTICS ... 2-27 2.17 ENVIRONMENTAL CHARACTERISTICS ... 2-28 2.17.1 General ... 2-28 2.17.2 Environmental ... 2-28 2.17.3 EMI ... 2-29 2.18 SAFETY ... 2-30 2.19 ACCESSORIES ... 2-30 2.20 OPTIONS & OPTIONAL VERSIONS ... 2-30 2.20.1 Options Line cord ... 2-30 2.20.2 Options digital versions ... 2-30 2.20.3 Options analog ... 2-31 2.20.4 Specification optional outputs ... 2-31 2.20.5 Specification External trigger option ... 2-31 2.20.6 Specification IEEE-OPTION ... 2-32 2.20.7 Extended memory ... 2-33 3 DESCRIPTIONS 35 3.1 GENERAL DESCRIPTION ... 3-5 3.1.1 Introduction to Oscilloscope family ... 3-5 3.1.2 Introduction to descriptions ... 3-5 3.1.3 Explanation of signal names ... 3-6 3.1.4 Voltage values in the circuit diagrams ... 3-6 3.2 BLOCK DIAGRAM DESCRIPTION ... 3-7 3.2.1 Introduction ... 3-7 3.2.2 Vertical channels ... 3-8 3.2.3 Triggering and time bases ... 3-9 3.2.4 Final amplifiers ... 3-10 3.2.5 Front unit and microprocessor ... 3-11 3.2.6 Power supply ... 3-11 3.2.7 Digitizer ... 3-12 4 PARTS ... 4-1 4.1 UNITS ... 4-1 4.2 INTERCONNECTION CABLES ... 4-2 4.3 MECHANICAL PARTS ... 4-4 5 UNIT DESCRIPTIONS ... 5.1-1 5.1 SIGNAL UNIT A1 ... 5.1-1 5.1.1 Description A1 ... 5.1-1 5.1.2 Signal name list ... 5.1-14 5.1.3 Unit lay-outs ... 5.1-21 5.1.4 Location list Signal Unit A1 ... 5.1-25 5.1.5 Circuit diagrams ... 5.1-35 5.1.6 Parts list ... 5.1-61 5.2 FINAL XYZ Amplifier A2 ... 5.2-1 5.2.1 Description of A2-200 MHz version ... 5.2-1 5.2.2 Signal name list A2-200 MHz version ... 5.2-5 5.2.3 Unit lay-outs A2-200 MHz version ... 5.2-7 5.2.4 Location list A2-200 MHz version ... 5.2-9 5.2.5 Circuit diagramsA2-200 MHz version ... 5.2-13 5.2.6 Parts list A2-200 MHz version ... 5.2-19 5.2.7 Description of A2-100 MHz version ... 5.2-35 5.2.8 Signal name list A2-100 MHz version ... 5.2-39 5.2.9 Unit lay-outs A2-100 MHz version ... 5.2-41 5.2.10 Location List A2-100 MHz version ... 5.2-43 5.2.11 Circuit diagrams A2-100 MHz version ... 5.2-47 5.2.12 Parts list A2-100 MHz version ... 5.2-53 5.3 MICROPROCESSOR A3 ... 5.3-1 5.3.1 Description A3 ... 5.3-1 5.3.2 Signal name list A3 ... 5.3-2 5.3.3 Location list ... 5.3-4 5.3.4 Unit lay-outs ... 5.3-5 5.3.5 Circuit diagrams ... 5.3-7 5.3.6 Parts list ... 5.3-13 5.4 FRONT UNIT A4 ... 5.4-1 5.4.1 Description ... 5.4-1 5.4.2 Signal name list A4 ... 5.4-1 5.4.3 Key switches ... 5.4-2 5.4.4 Unit lay-outs ... 5.4-5 5.4.5 Circuit diagrams ... 5.4-7 5.4.6 Parts list ... 5.4-9 5.5 CRT CONTROLS UNIT A5 ... 5.5-1 5.5.1 Description ... 5.5-1 5.5.2 Unit Lay-outs ... 5.5-2 5.5.3 Circiuit diagram ... 5.5-3 5.5.4 Parts list ... 5.5-4 5.6 POWER SUPPLY A6 ... 5.6-1 5.6.1 Description A6 ... 5.6-1 5.6.2 Signal name list A6 ... 5.6-5 5.6.3 Unit lay-outs ... 5.6-7 5.6.4 Circuit diagram ... 5.6-9 5.6.5 Parts list ... 5.6-13 5.7 RESERVED FOR FUTURE EXTENSIONS ... 5.7-1 5.8 DIGITIZER A8 ... 5.8-1 5.8.1 Descriptions ... 5.8-1 5.8.2 Signal name list digitizer A8 ... 5.8-23 5.8.3 Unit lay-outs ... 5.8-29 5.8.4 Location list ... 5.8-31 5.8.5 Circuit diagrams ... 5.8-37 5.8.6 Parst list ... 5.8-55 5.9 RESERVED FOR FUTURE EXTENSIONS ... 5.9-1 5.10 CONNECTOR BOARD A10 ... 5.10-1 5.10.1 Unit lay-out ... 5.10-1 5.10.2 Circuit diagram ... 5.10-3 5.10.3 Parts list ... 5.10-5 5.11 FACTORY INSTALLED OPTIONS ... 5.11-1 5.11.1 IEEE-OPTION ... 5.11-1 5.11.2 AUXILIARY OUTPUTS OPTION ... 5.11-1 5.11.3 EXTERNAL TRIGGER OPTION ... 5.11-7 6 PERFORMANCE TEST ... 6 1 6.1 GENERAL INFORMATION ... 6-1 6.2 RECOMMENDED TEST EQUIPMENT ... 6-2 6.3 TEST PROCEDURE ... 6-3 6.3.1 Preliminary settings ... 6-3 6.3.2 Power supply ... 6-3 6.3.3 Auto set ... 6-4 6.3.4 Orthogonality ... 6-5 6.3.5 Trace distortion ... 6-6 6.3.6 Vertical deflection; deflection coefficients ... 6-6 6.3.7 Vertical deflection; variable gain control range (continuation of 4.3.6) ... 6-8 6.3.8 Vertical deflection; input coupling (continuation of 4.3.7) ... 6-8 6.3.9 Vertical cursor accuracy (continuation of 4.3.8.) ... 6-9 6.3.10 Vertical deflection; high-frequency response ... 6-9 6.3.11 Vertical deflection; low-frequency response ... 6-10 6.3.12 Vertical deflection; dynamic range at 15/25/50 MHz ... 6-11 6.3.13 Vertical deflection; dynamic range at 60/100/200 MHz (continuation of 4.3.12) 6-11 6.3.14 Vertical deflection; position range ... 6-12 6.3.15 Vertical deflection; crosstalk between channels at 60/100/200 MHz ... 6-12 6.3.16 Vertical deflection; common mode rejection ratio at 1 MHz ... 6-13 6.3.17 Vertical deflection; common mode rejection ratio at 50 MHz (continuation of 4.3.16) ... 6-14 6.3.18 Vertical deflection; LF linearity ... 6-15 6.3.19 Vertical deflection; visual signal delay ... 6-15 6.3.20 Vertical deflection; base line instability ... 6-17 6.3.21 Delay difference between vertical channels ... 6-17 6.3.22 Horizontal deflection; display modes and trace separation ... 6-19 6.3.23 Horizontal deflection; X deflection ... 6-20 6.3.24 Horizontal deflection; MAIN TB deflection coefficients ... 6-21 6.3.25 Horizontal deflection; VARiable mode accuracy MAIN TB ... 6-22 6.3.26 Time cursor accuracy (continuation of 4.3.25) ... 6-23 6.3.27 Horizontal deflection; DELAYED TIME BASE deflection coefficients ... 6-24 6.3.28 Horizontal deflection; delay time multiplier ... 6-25 6.3.29 Horizontal deflection; delayed timebase jitter ... 6-26 6.3.30 Horizontal deflection; X deflection coefficient via CH1 ... 6-26 6.3.31 Horizontal deflection; X deflection coefficient via ’line’ ... 6-27 6.3.32 Horizontal deflection; high frequency response ... 6-28 6.3.33 Maximum phase shift between horizontal and vertical deflection ... 6-28 6.3.34 MAIN TB triggering PM3390A/3392A/3394A; trigger sensitivity via CH1, CH2, CH3 and CH4 (EXT) ... 6-30 6.3.35 MAIN TB triggering PM3370A/3380A/3382A/3384A; trigger sensitivity via CH1, CH2, CH3 and CH4 (EXT) ... 6-31 6.3.36 MAIN TB/DEL’D TB triggering; trigger sensitivity TVL-TVF ... 6-32 6.3.37 DEL’D TB triggering PM3390A/92A/94A; trigger sensitivity via CH1, CH2, CH3 and CH4 (EXT) ... 6-32 6.3.38 DEL’D TB triggering PM3370A/80A/82A/84A; trigger sensitivity via CH1, CH2, CH3 and CH4 (EXT) ... 6-34 6.3.39 Trigger sensitivity in logic mode PM3392A/3394A ... 6-35 6.3.40 Trigger sensitivity in logic mode PM3382A/3384A ... 6-36 6.3.41 Z-MOD sensitivity ... 6-37 6.3.42 Probe Adjust signal; frequency and output voltage ... 6-38 6.3.43 Auto range functions ... 6-39 7 CALIBRATION ADJUSTMENT PROCEDURE ... 7-1 7.1 INTRODUCTION ... 7-1 7.2 DARK LEVEL OF CRT ... 7-1 7.3 TRACE ROTATION ... 7-2 7.4 HORIZONTAL (X) GAIN AND OFFSET (CRT) ... 7-2 7.5 TEXT STABILITY AND X-OFFSET (CRT) ... 7-2 7.6 VERTICAL (Y) GAIN AND OFFSET (CRT) ... 7-2 7.7 HORIZONTAL GAIN AND OFFSET (VECTOR) ... 7-3 7.8 VERTICAL GAIN AND OFFSET (VECTOR) ... 7-3 7.9 ASTIGMATISM ... 7-3 7.10 AUTOCAL PROCEDURE ... 7-3 7.11 LF SQUARE-WAVE RESPONSE CH1 ... 7-4 7.12 LF SQUARE-WAVE RESPONSE CH2 ... 7-5 7.13 LF SQUARE-WAVE RESPONSE CH3 ... 7-5 7.14 LF SQUARE-WAVE RESPONSE CH4 and EXT TRIG ... 7-6 7.15 HF SQUARE-WAVE RESPONSE FINAL Y AMPLIFIER ... 7-7 7.16 HF RESPONSE DSO MODE ... 7-8 7.17 TRIGGER DELAY ADJUSTMENT ... 7-9 7.18 SAVING THE CALIBRATION DATA ... 7-10 7.19 TESTING THE INSTRUMENT’S PERFORMANCE ... 7-10 8 CORRECTIVE MAINTENANCE PROCEDURES 8 1 8.1 DISMANTLING THE INSTRUMENT ... 8-1 8.1.1 General information ... 8-1 8.1.2 Removing the cabinet and carrying handle ... 8-1 8.2 REPLACEMENTS ... 8-1 8.2.1 Standard parts ... 8-2 8.2.2 Special parts ... 8-2 8.2.3 Transistors and Integrated Circuits ... 8-2 8.3 STATIC SENSITIVE COMPONENTS ... 8-2 8.4 SOLDERING TECHNIQUES ... 8-3 8.4.1 General soldering techniques ... 8-3 8.4.2 Soldering micro-miniature semi-conductors ... 8-3 8.5 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 signal unit A1 ... 8-5 8.5.4 Removal of Final XYZ Amplifier unit A2 ... 8-6 8.5.5 Removal of unit at socket of CRT ... 8-7 8.5.6 Removal of Cathode Ray Tube (CRT) ... 8-7 8.5.7 Removal of microprocessor unit A3 ... 8-7 8.5.8 Removal of the units in the front frame (A4, A5) ... 8-8 8.5.9 Removal of the Power supply unit A6 ... 8-8 8.5.10 Removal of digitizer unit A8 ... 8-9 8.6 INSTRUMENT REPACKING ... 8-9 8.7 TROUBLESHOOTING TECHNIQUES ... 8-9 8.8 TROUBLESHOOTING THE POWER SUPPLY ... 8-10 8.9 SPECIAL TOOLS ... 8-11 8.9.1 Extension board ... 8-11 8.9.2 Flash-ROM loader program ... 8-11 8.10 RECALIBRATION AFTER REPAIR ... 8-11 8.11 TESTS BUILT INTO THE INSTRUMENT ... 8-12 8.11.1 Power-up test ... 8-12 8.11.2 Introduction to diagnostic tests ... 8-12 8.11.3 SELFTESTS ... 8-15 8.11.4 Repair tools ... 8-17 9 SAFETY INSPECTION AND TESTS AFTER REPAIR AND MAINTENANCE IN THE PRIMARY CIRCUIT ... 9-1 9.1 GENERAL DIRECTIONS ... 9-1 9.2 SAFETY COMPONENTS ... 9-1 9.3 CHECKING PROTECTIVE GROUND ... 9-1 9.4 CHECKING INSULATION RESISTANCE ... 9-1 9.5 CHECKING LEAKAGE CURRENT ... 9-1 9.6 VOLTAGE TEST ... 9-1

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