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Philips PM3262 Oscilloscope
Manufacturer:
Model:
PM3262
Date:
1978
Class:
Type:
SubType:
Portable dual-trace oscilloscope

Information

The PM 3262 Portable h.f. Oscilloscope enables the measurement of signals at a sensitivity of 5 mV/DIV over an extensive bandwidth of 100 MHz (35 MHz at 2 mV/DIV). The Oscilloscope is provided with many integrated circuits, which guarantee very stable operation and reduce the number of adjusting points. As an aid to checking and adjusting, testpoints have been included at appropriate positions around the circuit. There is a wide choice of display possibilities, such as one channel, two channels alternately or chopped, two channels added, with normal and inverted positions for both input signals, and a main and delayed time-base. Additionally features of the PM 3262 are the 3rd channel TRIG VIEW and ALTernate TB facilities. TRIG VIEW enables the display of the trigger signal (internal or external applied) via a 3rd channel by pushbutton selection. ALT. TB offers the instrument user a simultaneous display of the signal on the two time scales provided by the main time-base and by the delayed time-base. The PM 3262 Oscilloscope features a tapless Power supply that covers two voltage ranges, 100 V to 127 V and 220 V to 240 V by means of a changeover link, thus obviating the need for continuous adjustment to the local mains voltage. All these features make the Oscilloscope suitable for a wide range of applications.

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Service and User Manual
Manual type:
Service and User Manual
Pages:
232
Size:
22.02 Mbytes (23088983 Bytes)
Language:
english, german, french
Revision:
Manual-ID:
9499 440 19402
Date:
27 October 1978
Quality:
Scanned document, all readable.
Upload date:
03 February 2013
MD5:
7c120d9ccb8d1b6a86323d45bcf32cb1
Downloads:
1997

Information

The Service part is only in english!

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Service Manual Supplement
Manual type:
Service Manual Supplement
Pages:
1
Size:
181.95 Kbytes (186317 Bytes)
Language:
english
Revision:
Manual-ID:
802711 and/or 9499 448 16511
Date:
unknown
Quality:
Electronic document, no scan, very well readable.
Upload date:
05 March 2008
MD5:
ef5e5a6cb70ac0f2bdcddf58c29e1d91
Downloads:
3728
Service and User Manual
Manual type:
Service and User Manual
Pages:
177
Size:
12.39 Mbytes (12991518 Bytes)
Language:
english
Revision:
Manual-ID:
9499 443 00502
Date:
01 October 1979
Quality:
Scanned document, all readable.
Upload date:
01 August 2020
MD5:
a695340bec2d213310f71dda16baebae
Downloads:
28

Information

1. GENERAL INFORMATION 9 1.1. Introduction 9 1.2. Characteristics 10 1.2.1. C.r.t. 10 1.2.2. Vertical or Y axis 10 1.2.3. Horizontal or X axis 12 1.2.4. Mam time-base 12 1.2.5. Delayed time-base 13 1.2.6. X deflection 14 1.2.7. Triggering of the main time-base 14 1.2.8. Triggering of the delayed time-base 15 1.2.9. Calibration unit 15 1.2.10. Additional Input and Outputs 15 1.2.11. Power supply 16 1.2.12. Environmental characteristics 16 1.2.13. Mechanical data 16 1.3. Accessories 18 1.3.1. Accessoires delivered with the instrument 18 1.3.2. Optional accessoires 18 2. OPERATING MANUAL 20 2.1. General information 20 2.1.1. Installation 20 2.1.2. Removing and fitting the front cover 20 2.1.3. Mains adjustment and fuse 20 2.1.4. Earthing 20 2.1.5. Switching on 21 2.2. Operating instructions 26 2.2.1. Controls and sockets 26 2.2.2. Preliminary settings 30 2.2.3. Inputs A and B and their possibilities 30 2.2.4. Triggering 31 2.2.5. Time-base magnifier 32 2.2.6. Use of the delayed time-base 32 2.2.7. Use of the alternate time-base 33 2.2.8. Use of the 3rd channel TRIGGER VIEW 33 3. SERVICE MANUAL 81 3.1. Description of the block diagram 81 3.2. Circuit description 88 3.2.1. Vertical deflection system 88 3.2.1.1. Input coupling 88 3.2.1.2. Input attenuator and impedance converter 88 3.2.1.3. Intermediate amplifier 89 3.2.1.4. Trigger pick-off and trigger source selection 90 3.2.1.5. Vertical display mode logic 91 3.2.1.6. Delay-line driver 94 3.2.1.7. Final Y amplifier 94 3.2.2. Main time-base triggering 95 3.2.2.1. Main time-base trigger source selector and preamplifier 95 3.2.2.2. Main time-base trigger amplifier 96 3.2.3. Main time-base generator 96 3.2.3.1. Free run AUTO-circuit 97 3.2.3.2. SINGLE SHOT mode 98 3.2.4. Delayed time-base triggering 98 3.2.4.1. Delayed time-base trigger source selector and preamplifier 99 3.2.4.2. Delayed time-base trigger amplifier 99 3.2.5. Delayed time-base generator 100 3.2.5.1. Delayed time-base sweep generator 100 3.2.5.2. Delayed time-base end of the sweep detection circuit 101 3.2.5.2. Delay time function 101 3.2.5.3. Comparator circuit and sweep gating logic 101 3.2.6. X deflection selector and alternate time-base logic 101 3.2.7. X Final amplifier 103 3.2.8. Cathode-ray tube circuit 104 3.2.8.1. C.R.T. controls 104 3.2.8.2. Z unit and Focus unit 105 3.2.8.3. C.R.T. cathode regulation 106 3.2.9. Power supply 106 3.2.10. Illumination circuit 107 3.2.11. Calibration circuit 107 3.3. Dismantling 108 3.3.1. General information 108 3.3.2. Removing the cabinet plates and the screen bezel 108 3.3.3. Removing the knobs 108 3.3.3.1. Single knobs 108 3.3.3.2. Double knob 108 3.3.3.3. Delay-time multiplier knob 108 3.3.4. Removal of Circuit Boards: 109 Delay line Focus unit Time-base and final X Amplifier Trigger Amplifier Z-Amplifier Intermediate Amplifier 3.3.5. Removing the calibration unit 109 3.3.6. Removing the circuit board of the final Y amplifier 109 3.3.7. Removing the circuit board of the power supply 109 3.3.8. Removing the E.H.T. unit 109 3.3.9. Removing the attenuator unit 109 3.3.10. Removing the trigger-source unit 110 3.3.11. Replacing a push-button switch 111 3.3.12. Removing the cathode-ray tube 112 3.3.13. Removing the carrying handle 112 3.3.14. Soldering micro-minature semi-conductors 113 3.3.15. Special tools 114 3.3.15.1. Special tool for slotted nuts of attenuator switches A and B 114 3.3.15.2. Special tool for slotted nuts of POSITION and LEVEL/SLOPE potentiometers 114 3.4. Checking and adjusting 115 3.4.1. General information 115 3.4.2. Recommended test equipment 115 3.4.3. Preliminary control settings and survey of adjusting elements ^5 3.4.4. Power supply 119 3.4.4.1. Power consumption 119 3.4.4.2. +12,7 V supply voltage 119 3.4.4.3. Cathode voltage 119 3.4.5. Calibration socket 119 3.4.6. Cathode-ray tube circuit 119 3.4.6.1. Focus and astigmatism 119 3.4.6.2. Trace rotation 120 3.4.6.3. Orthogonality 120 3.4.6.4. Geometry 120 3.4.6.5. Intensity 120 3.4.6.6. Intensity ratio 121 3.4.7. Balance adjustments 121 3.4.7.1. 0-DC Balance 121 3.4.7.2. Attenuator balance 121 3.4.7.3. Continue balance 121 3.4.7.4. Balance 5 mV/div 121 3.4.7.5. Polarity (Norm/Invert) balance 122 3.4.7.6. Trigger balance main time-base 122 3.4.7.7. Trigger balance delayed time-base 122 3.4.7.8. Y-position correction and ADD balance adjustment 123 3.4.7.9. T.B. MAGN. balance 123 3.4.8. Time-base generators 123 3.4.8.1. MTB, time coefficients 123 3.4.8.2. DTB, time coefficients 124 3.4.8.3. Delay time 124 3.4.8.4. Alternate time-base and trace separation 125 3.4.9. L.F. correction and sensitivities 125 3.4.9.1. L.F. correction amplifier 125 3.4.9.2. L.F. correction MTB external input 125 3.4.9.3. L.F. correction DTB external input 126 3.4.9.4. Gain (sensitivity) via Y 126 3.4.9.5. Gain (sensitivity) Yg via Y 126 3.4.9.6. Gain (sensitivity) at external X deflection 126 3.4.9.7. Gain (sensitivity) external triggering via TRIG VIEW 127 3.4.9.8. Gain (sensitivity) YA TRIG. VIEW 127 3.4.9.9. Gain (sensitivity) Yg TRIG VIEW 127 3.4.9.10. Gain (sensitivity) Y^ via X 127 3.4.9.11. Gain (sensitivity) Yg via X 127 3.4.10. Vertical channels 3.4.10.1. Square-wave response 128 3.4.10.2. Input capacitance 128 3.4.10.3. Square-wave response final Y amplifier 128 3.4.10.4. Square-wave response channel A 129 3.4.10.5. Square-wave response channel B 129 3.4.10.6. Bandwidth 130 3.4.10.7. Common-mode rejection 131 3.4.10.8. Dynamic range and position range 131 3.4.10.9. Chopped mode 132 3.4.10.10. Alternate mode 132 3.4.10.11. Square-wave response trigger view via channel A (B) 132 3.4.10.12. Bandwidth trigger view via channel A (B) 132 3.4.10.13. Bandwidth trigger view via external input 132 3.4.11. Triggering 133 3.4.11.1. Trigger slope and level of the m.t.b. 133 3.4.11.2. Trigger sensitivities m.t.b. 133 3.4.11.3. Single-sweep operation 134 3.4.11.4. Triggering at mains frequency 134 3.4.11.5. Trigger slope and level of the d.t.b. 135 3.4.11.6. Trigger sensitivities d.t.b. 135 3.4.12. Jitter 136 3.4.13. Periodic and random deviations 136 3.4.14. Effect of the mains voltage variations 136 3.4.15. Horizontal amplifier 137 3.4.15.1. Bandwidth 137 3.4.15.2. Phase difference 137 3.5. Information concerning accessories 137 144 144 149 3.5.1. Attenuator Probe set delivered with the instrument 3.5.2. Adapter PM 9051 3.5.3. Trimming tool kit 149 3.6. Extra in-and output circuits 150 3.6.1. Introduction 150 3.6.2. Main time-base gate output 150 3.6.3. Delayed time-base gate output 150 3.7. Maintenance 151 3.8. Parts list and diagrams 152 3.8.1. Mechanical parts 152 3.8.2. Electrical parts 156

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