Philips PM3055 Oscilloscope
Manufacturer:
Model:
PM3055
Date:
1987
Category:
Group:
Description:
Dual Time Base Oscilloscope

Information

60 MHz Dual Time Base Oscilloscope.

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Service Manual
Manual type:
Service Manual
Pages:
51
Size:
1.65 Mbytes (1732643 Bytes)
Language:
english
Revision:
Manual ID:
4822 872 05327
Date:
11 April 1988
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
27 February 2008
MD5:
98bcc150b4efab2ad38a00119ceb7283
Downloads:
5898
Service Manual
Manual type:
Service Manual
Pages:
195
Size:
8.88 Mbytes (9310294 Bytes)
Language:
english
Revision:
Manual ID:
4822 872 05327
Date:
11 April 1988
Quality:
Scanned document, all readable.
Upload date:
29 January 2017
MD5:
bab65ec73f51ac45392fe23f95ee31d6
Downloads:
1127

Information

1. SAFETY INSTRUCTIONS 1-1 1.1 Introduction ... 1-1 1.2 Safety precautions ... 1-1 1.3 Caution and warning statements ... 1-1 1.4 Symbols ... 1-1 1.5 Impaired safety-protection ... 1-2 1.6 General clauses ... 1-2 2. CHARACTERISTICS 2-1 2.1 Display ... 2-3 2.2 Vertical deflections or Y axis ... 2-3 2.2.1 Channels A and B ... 2-3 2.2.2 Triggerview ... 2-5 2.3 Horizontal deflection or X axis ... 2-6 2.3.1 Main Time Base (MTB) ... 2-6 2.3.2 Delay Time Base (DTB) ... 2-6 2.3.3 X-deflection ... 2-7 2.3.4 EXT input ... 2-7 2.4 Triggering ... 2-8 2.4.1 MTB triggering ... 2-8 2.4.2 DTB triggering ... 2-9 2.5 Power supply ... 2-9 2.6 Auxiliary input or outputs ... 2-10 2.7 Environmental characteristics ... 2-10 2 .8 Safety ... 2-12 3. INTRODUCTION TO CIRCUIT- AND BLOCK DIAGRAM DESCRIPTION 3-1 3.1 Introduction to circuit description ... 3-1 3.2 Block diagram description ... 3-10 3.2.1 Introduction ... 3-10 3.2.2 Control Unit ... 3-10 3.2.3 Attenuator unit ... 3-10 3.2.4 Pre-amplifier unit ... 3-10 3.2.5 Time-base unit ... 3-12 3.2.6 XYZ unit ... 3-12 3.2.7 Power supply unit ... 3-13 4. ATTENUATOR UNIT (Al) 4-1 4.1 Vertical attenuators ... 4-1 4.2 External input ... 4-2 5. PRE-AMPLIFIER UNIT (A2) 5-1 5.1 Vertical pre-amplifier ... 5-1 5.2 MTB trigger pre-amplifier ... 5-2 5.3 DTB trigger pre-amplifier ... 5-3 5.4 Pre-amplifier control ... 5-4 6. XYZ-AMPLIFIER UNIT (A3) 6-1 6.1 Introduction ... 6-1 6.2 Final vertical (Y) Amplifier ... 6-1 6.3 Final horizontal (X) Amplifier ... 6-1 6.4 Final blanking (z) Amplifier and CRT ... 6-2 7. TIME-BASE UNIT (A4) 7-1 7.1 Trigger Amplifier ... 7-1 7.2 Timing circuit ... 7-2 7.3 Sweep generators ... 7-4 7.4 X DEFL Amplifier, and display mode switch ... 7-6 7.5 Z-amplifier ... 7-6 7.6 Timing diagrams ... 7-8 8. CRT Control Unit (A5) 8-1 9. Power supply UNIT (A6) 9-1 9.1 Input circuit ... 9-1 9.2 Converter circuit ... 9-1 9.3 Secondary output rectifiers ... 9-3 9.4 HT supply ... 9-3 9.5 Calibrator ... 9-3 10. FRONT UNIT (A7-A8) 10-1 10.1 Microcomputer control circuit ... 10-1 10.1.1 Introduction to MAB8052 microcomputer ... 10-1 10.1.2 Characteristics of the I^C bus ... 10-1 10.1.3 I C structure ... 10-2 10.1.4 Microcomputer MAB8052 ... 10-3 10.1.5 I^C decoding ... 10-4 10.1.6 Status input ... 10-5 10.1.7 Probe indicator ... 10-5 10.1.8 C-Bus decoder ... 10-5 10.2 LCD display circuit ... 10-5 10.3 Front-panel controls ... 10-6 11. PERFORMANCE CHECK 11-1 11.1 General information ... 11-1 11.2 Preliminary settings ... 11-2 11.3 Recommended test equipment ... 11-2 11.4 Checking procedure ... 11-3 11.4.1 Power supply ... 11-3 11.4.2 Display ... 11-3 11.4.3 Vertical deflection or Y-axis ... 11-4 11.4.4 Trigger view ... 11-10 11.4.5 Horizontal deflection or X-axis ... 11-13 11.4.6 MTB triggering ... 11-18 11.4.7 DTB triggering ... 11-20 11.4.8 Auxiliary inputs and outputs ... 11-22 12. DISMANTLING THE INSTRUMENT 12-1 12.1 General information ... 12-1 12.2 Removing the top and bottom covers ... 12-1 12.3 Access to parts for the checking and adjusting procedures ... 12-1 13. CHECKING AND ADJUSTING 13-1 13.1 General information ... 13-1 13.2 Recommended test and calibration equipment ... 13-6 13.3 Survey of adjusting elements ... 13-7 13.4 Checking and adjusting procedure ... 13-9 13.4.1 Preparation ... 13-9 13.4.2 Power supply adjustment ... 13-9 13.4.3 CRT display adjustment ... 13-9 13.4.4 Square-wave response attenuator ... 13-10 13.4.5 Adjustment of vertical sensitivities ... 13-10 13.4.6 Adjustment of horizontal sensitivity ... 13-11 13.4.7 Offset adjustments ... 13-11 13.4.8 Adjustment of trigger sensitivity ... 13-12 13.4.9 Adjustment of the MTB sweep times ... 13-12 13.4.10 Adjustment of the DTB sweep times ... 13-12 13.4.11 Adjustment of xlO sweep times ... 13-13 13.4.12 Adjustment of delay time multiplier ... 13-13 13.4.13 Square-wave response of final Y-amplifier ... 13-13 13.4.14 Checking the AUTO SET function ... 13-14 14. CORRECTIVE MAINTENANCE 14-1 14.1 Replacements ... 14-1 14.1.1 Standard parts ... 14-1 14.1.2 Special parts ... 14-1 14.1.3 Transistors and Integrated Circuits ... 14-1 14.1.4 Static-sensitive components ... 14-2 14.1.5 Handling MOS devices ... 14-2 14.2 Removing the units and mechanical parts ... 14-3 14.2.1 Attenuator unit (Al) ... 14-3 14.2.2 Pre-amplifier unit (A2) ... 14-4 14.2.3 XYZ-amplifier unit (A3) ... 14-4 14.2.4 Time-base unit (A4) ... 14-4 14.2.5 CRT Control Unit (A5) ... 14-4 14.2.6 Power supply unit (A6) ... 14-5 14.2.7 Front unit (A7) and LCD unit (A8) ... 14-6 14.2.8 Removing the delay line cable ... 14-7 14.2.9 Replacement fo CRT ... 14-7 14.3 Soldering techniques ... 14-8 14.4 Instrument repacking ... 14-8 14.5 Trouble shooting ... 14-9 14.5.1 Introduction ... 14-9 14.5.2 Trouble-shooting techniques ... 14-9 14.5.3 Power-up routine ... 14-10 14.5.4 Trouble-shooting the Power supply ... 14-11 14.5.5 P.c.b. interconnections ... 14-11 14.5.6 Signal waveforms ... 14-16 14.5.7 Semi conductor pinnings ... 14-16 14.6 Special tools ... 14-16 14.6.1 Trimming kit SBC 317 ... 14-16 14.6.2 P.c.b. snapper ... 14-17 ■ 14.7 Recalibration after repair ... 14-17 15. SAFETY INSPECTION AND TEST AFTER REPAIR AND MAINTENANCE IN THE PRIMARY CIRCUIT 15-1 15.1 General directives ... 15-] 15.2 Safety components ... 15-1 15.3 Checking the protective earth connection ... 15-1 15.4 Checking the insulation resistance ... 15-1 15.5 Checking the leakage current ... 15-1 15.6 Voltage test ... 15-2 16. PARTS LIST 16-1 16.1 Mechanical parts ... 16-1 16.2 Units ... 16-6 16.3 Cables and connectors ... 16-7 16.3.1 Flatcables and connectors ... 16-7 16.3.2 Pcb-connectors ... 16-7 16.3.3 Miscellaneous cables ... 16-7 16.4 Electrical parts ... 16-8 16.4.1 Capacitors ... 16-8 16.4.2 Resistors ... 16-11 16.4.3 Coils ... 16-16 16.4.4 Semi-conductors ... 16-16 16.4.5 Integrated circuits ... 16-18 16.4.6 Cathode ray tube ... 16-18 16.4.7 Miscellaneous ... 16-18 17. OPTIONS 17-1 17.1 Y-OUT ... 17-1 17.1.1 Characteristics ... 17-1 17.1.2 Circuit description ... 17-1 17.1.3 Adjusting and checking procedure ... 17-2 17.1.4 Parts list ... 17-3 17.2 MTB gate, DTB gate and MTB sweep ... 17-6 17.2.1 MTB gate ... 17-6 17.2.2 DTB gate ... 17-6 17.2.3 MTB sweep ... 17-6 17.2.4 Parts list ... 17-6

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User Manual
Manual type:
User Manual
Pages:
41
Size:
4.66 Mbytes (4887005 Bytes)
Language:
english
Revision:
Manual ID:
4822 872 00454
Date:
12 September 1990
Quality:
Scanned document, all readable.
Upload date:
18 May 2015
MD5:
be140e5e3eca456d53f97b451e44e889
Downloads:
2109

Information

1. OPERATORS SAFETY ME 1.1 Introduction ... 1-1E 1.2 Safety precautions ... 1-1E 1.3 Caution and warning statement ... 1-1E 1.4 Symbols ... 1-1E 1.5 Impaired safety-protection ... 1-1E 2. INSTALLATION INSTRUCTIONS 2-1E 2.1 Initial inspection ... 2-1E 2.2 Safety instructions ... 2-1E 2.2.1 Earthing ... 2-1E 2.2.2 Mains voltage cord and fuses ... 2-1E 2.3 Operating position of the instrument ... 2-2E 2.4 Rackmount version ... 2-2E 3. OPERATING INSTRUCTIONS 3-1E 3.1 Switching-on and auto-set ... 3-1E 3.1.1 Switching-on ... 3-1E 3.1.2 Auto set ... 3-1E 3.2 Explanation of controls and sockets ... 3-2E 3.2.1 Introduction ... 3-2E 3.2.2 C.R.T. control area ... 3-4E 3.2.3 Up-down control area ... 3-4E 3.2.4 Function control area ... 3-5E 3.2.5 Potentiometer area ... 3-11E 3.2.6 Inputs and outputs ... 3-12E 3.2.7 Rear panel ... 3-12E 3.2.8 Application select menu ... 3-14E 3.3 Principle of operation ... 3-15E 3.3.1 Control section ... 3-15E 3.3.2 Vertical deflection ... 3-15E 3.3.3 Horizontal deflection ... 3-16E 3.3.4 C.R.T. Display ... 3-17E 3.3.5 Power supply ... 3-17E 3.4 Brief checking procedure ... 3-18E 3.4.1 General information ... 3-18E 3.4.2 Entering the brief checking procedure ... 3-18E 3.4.3 Brief checking of controls and functions ... 3-19E 4. PREVENTIVE MAINTENANCE 4-1E 4.1 General information ... 4-1E 4.2 Removing the bezel and contrast filter ... 4-1E 4.3 Recalibration ... 4-1E 5. CHARACTERISTICS 5-1E 5.1 Display ... 5-2E 5.2 Vertical deflection or Y axis ... 5-2E 5.2.1 Channels A and B ... 5-2E 5.2.2 Triggerview ... 5-3E 5.3 Horizontal deflection X axis ... 5-4E 5.3.1 Main Time Base ... 5-4E 5.3.2 Delay Time Base ... 5-5E 5.3.3 X-deflection ... 5-5E 5.3.4 EXT input ... 5-5E 5.4 Triggering ... 5-6E 5.4.1 MTB triggering ... 5-6E 5.4.2 DTB triggering ... 5-7E 5.5 Power supply ... 5-7E 5.6 Auxiliary in or outputs ... 5-7E 5.7 Environmental characteristics ... 5-8E 5.8 Safety ... 5-9E 5.9 Accessories ... 5-10E 5.9.1 Accessory information ... 5-1OE 6. GLOSSARY OF TERMS 6-1E APPENDIX A A1 APPENDIX B B1

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