Philips PM 3266 User manual

!PHILIPS
Portable Storage oscilloscope
PM 3266
JInstruction Manual 9499 440 19702 781108'
•/
i
PHILIPS

Instruction manual
Geratehandbuch
Notice d’emploi ’entretien
Portable dual trace storage oscilloscope
Tragbarer Zweistrahl -Speicheroszillograf
Oscilloscope, double trace portatif amemoire
PM3266
PHILIPS
9499 440 19702 781108

2
IMPORTANT
In correspondence concerning this instrunnent. please quote the type number and serial number as given on the
type plate.
WICHTIG
Bei Schriftwechsel uber dieses Gerat wird gebeten, die genaue Typenbezeichnung und die Geratenummer
anzugeben. Diese befinden sich auf dem Leistungsschiid.
IMPORTANT
RECHANGE DES PIECES DETACHEES (Reparations)
Dans votre correspondance et dans vos reclamations se rapportant acet appareil, veuillez TOUJOURS indiquer
le num6ro do type et le num^ro de serie qui sont marquis sur la plaquette de catacleristiques.
/Vote: The design of this instrument is subject to continuous development and improvement.
Consequently, this instrument may incorporate minor changes in detail from the information
contained in this manual.
Bemerkung: Die Konstruktion und Schaltung dieses Gerats wird standig weiterentwickelt und verbessert.
Deswegen kann dieses Gerat von den in dieser Anleitung stehenden Angaben abweichen.
Remarques: Cet appareil est I'ohjet de dSveloppements et ameliorations continuels. En consiquence,
certains details mineurs peuvent diffSrer des informations donnees dans la presente notice
d'emploi et d'entretien.
©N.V. PHILIPS' GLOEILAMPENFABRIEKEN -EINDHOVEN -THE NETHERLANDS 1978
PRINTED IN THE NETHERLANDS

3
CONTENTS
1. GENERAL INFORMATION 9
1.1. Introduction g
1.2. Characteristics Iq
1.2.1. C.r.t. section 10
1.2.2. Vertical or Yaxis H
1.2.3. Horizontal or Xaxis I3
1.2.4. Main time-base I3
1.2.5. Delayed time-base 14
1.2.6. Xdeflection 15
1.2.7. Triggering of the main time-base 15
1.2.8. Triggering of the delayed time-base 16
1.2.9. Calibration unit 16
1.2.10. Additional Input and Outputs 16
1.2.11. Power supply 17
1.2.12. Environmental characteristics 17
1.2.13. Mechanical data 17
1.3. Accessoires 19
1.3.1. Accessoires delivered with the instrument 19
1.3.2. Optional accessoires 19
2. OPERATING MANUAL 21
2.1. General information 21
2.1.1. Installation 21
2.1.2. Removing and fitting the front cover 21
2.1.3. Mains adjustment and fuse 21
2.1.4. Earthing 21
2.1.5. Switching on 26
2.2. Operating instructions 27
2.2.1. Controls and sockets 27
2.2.2. Preliminary settings 32
2.2.3. Inputs Aand Band their possibilities 32
2.2.4. Triggering 33
2.2.5. Time-base magnifier 34
2.2.6. Use of the delayed time-base 34
2.2.7. Use of the alternate time-base 35
2.2.8. Use of the 3rd channel TRIGGER VIEW 35
2.2.9. Operation of the storage functions 36
3. SERVICE MANUAL 97
3.1. Description of the block diagram 97
3.2. Circuit description 105
3.2.1. Vertical Deflection System 105
3.2.1. 1. Input coupling 105
3. 2. 1.2. Input attenuator and impedance converter 105
3. 2. 1.3. Intermediate amplifier 106
3. 2. 1.4. Trigger pick off and trigger source selection 107

4
3.2.1. 5.
3.2. 1.6.
Vertical display mode logic
Delay line driver 108
111
111
3.2.I.7. Final Y-amplifier
3.2.2. Main-time base triggering 112
3.2.2.I. Main-time base trigger source selector and preamplifier 112
3.2.2.2. Main-time base trigger amplifier 113
3.2.3. Main-time base generator 113
3.2.3. 1. Free run auto circuit 114
3.2.3.2. Single shot mode 115
3.2.4. Delayed time-base triggering 115
3.2.4.I. Delayed time-base trigger source selector and preamplifier 116
3.2.4.2. Delayed time-base trigger amplifier 116
3.2.5. Delayed time-base generator 117
3.2.5.I. Delayed time-base sweep generator 117
3.2.5.2. Delayed time-base end of the sweep detection circuit 118
3.2. 5.3. Delay time function 118
3.2.5.4. Comparator circuit and sweep gating logic 118
3.2.6. Xdeflection selector and alternate time-base logic 118
3.2.7. XFinal amplifier 120
3.2.8. Storage section 121
3.2.8.I. Introduction 121
3.2.8.2. Functioning of the storage system 121
3.2.S.3. Pulse Generation and Control for Storage Modes 127
3.2.9. ZAmplifier and Focus Amplifier 136
3.2.10. Power supply 138
3.3. Dismantling the instrument 140
3.3.1. General Information 140
3.3.2. Removing the cabinet plates and the screen bezel 140
3.3.3. Removing the knobs 140
3.3.3.I. Single knobs 140
3.3.3.2. Double knobs 140
3.3.3.3. Delay-time multiplier knob 140
3.3.4. Removing units on the bottom side of the instrument 141
3.3.4.I. Storage logic (unit 22) 141
3.3.4.2. Attenuator (unit2) 141
3.3.4.3. Trigger source selector (unit 16) 141
3.3.4.4. Intermediate amplifier (unit 12) 141
3.3.4.5. Z-Amplifier (unit 11
)
141
3.3.4.6. Additional power supply (unit 24) 141
3.3.4.7. Focus unit (unit 7) 141

-
5
3.3.4.8. E.H.T. unit (unit 15) 142
3.3.5. Removing the Power supply (unit 5) 142
3.3.6. Removing units on the top side of the Instrument 142
3.3.6. 1. Storage amplifier unit (unit 25) 149
3.3.6.2. Trigger amplifier unit (unit 9) 142
-3.3.6.3. Final X-amplifier (unit 26) 142
3.3.6.4. Time-base unit (unit 8) 142
3.3.6.B. Final Y-amplifier (unit 13) 142
3.3.6.6. Delay line (unit 4) 142
3.3.7. Removing the cathode ray-tube (CRT) 143
3.3.8. Replacing apush-button switch 144
-3.3.9. Removing the carrying handle 145
3.3.10. Soldering micro-miniature semi-conductors 146
3.3.11. Special tools 147
3.4. Checking and Adjusting 148
3.4.1. General Information 148
3.4.2. Recommended test equipment 148
3.4.3. Preliminary control settings 148
3.4.4. Power supply 148
3.4.4.I. Power consumption 148
3.4.4.2. +12,7 Vsupply voltage (unit 5) 148
3.4.4.3. Cathode voltage (unit 11
)
149
-3.4.5. Calibration socket 149
3.4.6. Cathode-ray tube circuit 149
3.46.1. Focus and horizontal intensity 149
3.4.6.2. Trace rotation 149
3.4.6.3. Orthogonality (unit 26) 149
3.4.6.4. Geometry 149
3.4.6.5. Intensity (unit 11) 150
3.4.6.6. Intensity ratio (unit 8) 150
"3.4.7. Balance adjustments 150
3.4.7.I. 0-DC Balance (Att. unit) 150
3.4.7.2. Attenuator-balance (Atten. unit) 150
3.4.7.3. Continue balance (unit 12) 151
3.4.7.4. Balance 5mV/div (unit 12) 151
-3.4.7.5. Polarity (Norm/Invert) balance (unit 12) 151
3.4.7.6. Trigger balance main time-base (unit 12) 151
3.4.7.7. Trigger balance delayed time-base (unit 12) 151
—3.4.7.8. Yposition correction (unit 13) 152
34.7.9. TB MAGN balance (unit 8) 152
~3.4.8. Time-base generators 152
3.4.8.I. Main time-base time coefficients (unit 8) 152
3.4.8.2. Delayed time-base time coeficients (unit 8) 153
3.4.S.3. Delay time (unit 9) 153
3.4.8.4. Alternate time-base and trace separation 154
3.4.9. Sensitivities 154
-

6
3.4.9. 1. Gain via X154
3.4.9.2. Gain via Y154
3.4.9.3. Gain Yg via Y154
3.4.9.4. Gain at external Xdeflection 155
3.4.9.B. Gain external triggering via TRIG VIEW 155
3.4.9.G. Gain Y^ via TRIG VIEW 155
3.4.9.7. Gain Yg via TRIG VIEW 155
3.4.9.S. Gain Yg via X155
3.4.10. Vertical channels 155
3.4.10.1. L.F. Correction amplifier 156
3.4.10.2. Square-wave response 156
3.4.10.3. Input capacitance 156
3.4.10.4. Square-wave response final Yamplifier 157
3.4.10.5. Square-wave response channel A157
3.4.10.6. Square-wave response channel B158
3.4.10.7. Bandwidth 159
3.4.10.8. Common-mode rejection 159
3.4.10.9. Dynamic range and position range 159
3.4.10.10. Chopped mode 159
3.4.10.11. Alternate mode 160
3.4.10.12. Square-wave response trigger view via channel A(B) 160
3.4.10.13. Bandwidth trigger view via channel A(B) 160
3.4.10.14. Bandwidth trigger view via external input 160
3.4.11. Triggering 161
3.4.11.1. Trigger slope and level of the m.t.b. 161
3.4.11.2. Trigger sensitivities m.t.b. 161
3.4.11.3. Single-sweep operation 162
3.4.11.4. Triggering at mains frequency 162
3.4.11.5. Trigger slope and level of the d.t.b. 162
3.4.11.6. Trigger sensitivities d.t.b. 163
3.4.12. Jitter 163
3.4.13. Periodic and random deviations 163
3.4.14. Effect of the mains voltage variations 164
3.4.15. Horizontal amplifier 164
3.4.15.1. Bandwidth 164
3.4.15.2. Phase difference 164
3.4.16. Adjustment of the storage section 167
3.4.16.1. Introduction 167
3.4.16.2. Non store mode adjustment 167
3.4.16.3. Variable persistence mode adjustment 167
3.4.16.4. Fast mode adjustment 167
3.5. Information concerning accessoires 174
3.5.1. Attenuator probe set delivered with the instrument 174
3.5.2. Adapter PM 9051 179
3.5.3. Trimming tool kit 179

3.6. Extra input and outputs
3.6.1. Introduction .^gg
3.6.2. Main time base gate output ^00
3.6.3. Delayed time base gate output .[00
3.7. Maintenance
3.8. Parts lists and diagrams 1g0
3.8.1. Mechanical parts Igg
3.8.2. Electrical parts and diagrams 135
List of figures
Fig. 1.1. Portable dual-trace storage oscilloscope PM 3266 9
Fig. 1.2. Derating of the maximum permissible input voltage as a function of frequency 1
8
Fig. 1.3. Typical trigger sensitivity of channel Aas afunction of frequency 18
Fig.. 2.1. Removing front cover 20
Fig. 2.2. Rear view of the instrument 20
Fig. 2.3. Front view showing controls and sockets 24
Fig. 2.4. Scanning the wave form by means of the LEVEL potentiometer 34
Fig. 3.1. Block diagram 94
Fig. 3.2. Voltage waveforms applied to the storage electrodes of the CRT in the WRITE mode 100
Fig. 3.3. Voltage waveforms applied to the storage electrodes of the CRT in the FAST mode 102
Fig. 3.4. Vertical deflection system 105
Fig. 3.5. Vertical display mode logic 108
Fig. 3.6. Generation of control pulses 110
Fig. 3.7. Main time base trigger circuit 112
Fig. 3.8. Main time base generator 113
Fig. 3.9. Delayed time base trigger circuit 115
Fig. 3.10. Delayed time base generator 117
Fig. 3.11. X-deflection selector and alternate time base logic 118
Fig. 3.12. Final X-amplifier 120
Fig. 3.13. Pushbutton switch decoder truth table 127
Fig. 3.14. Write mode, voltage waveforms applied to storage electrodes 129
Fig. 3.15. Fast mode, voltage waveforms applied to storage electrodes 131
Fig. 3.16. Store mode, voltage waveforms applied to storage electrodes 134
Fig. 3.17. CRT controls trace rotation and geometry 137
Fig. 3.18. Removing the knobs 140
Fig. 3.19. Pushbutton set clamping device 144
Fig. 3.20. Replacing aswitch-segment of apushbutton-set 144
Fig. 3.21. Dimensional drawing of SOT-23 146
Fig. 3.22. Tool for attenuator unit 147
Fig. 3.23. Tool for positioning potentiometer 147
Fig. 3.24. Orthogonality check 165
Fig. 3.25. Geometry check 165
Fig. 3.26. Position of the intensity potentiometer 165
Fig. 3.27. 2:1dummy probe 165
Fig. 3.28. Phase difference in X-Y mode 165
Fig. 3.29. Adjustment of the variable persistence and store mode 166
Fig. 3.30. Adjustments of the fast mode 169
Fig. 3.31. Unit lay-out and adjustment points, bottom view 170
Fig. 3.32. Unit lay-out and adjustment points, top view 171
Fig. 3.33. Input resistance and reactance versus frequency 174
Fig. 3.34. Max. AC component of input voltage as a function of frequency 174
Fig. 3.35. Adjusting C2 of att. probe 175

6b
Fig. 3.36. Adjusting H.F. step response of att. probe 175
Fig. 3.37. Dismantling the probe 176 _
Fig. 3.38. Mechanical parts of the probe 177
Fig. 3.39. Electrical parts of the probe 178
Fig. 3.40. Adapter BNC/Banana PM 9051 179 -
Fig. 3.41. Trimming tool kit 800 NTX 179
Fig. 3.42. Mechanical item numbers, front view 182
Fig. 3.43. Mechanical item numbers, rear view 182 -*
Fig. 3.44. Vertical attenuator (unit 2), component side lay-out 221
Fig. 3.45. Vertical attenuator (unit 2), conductor side lay-out 221
Fig. 3.46. Vertical attenuator (unit 2), mechanical lay-out 222
Fig. 3.47. Mains filter, power supply and EHT unit (unit 3,5 and 15), lay-out 224
Fig. 3.48. Focus unit (unit 7), lay-out 226
Fig. 3.49. Time base unit (unit 8), lay-out 228
Fig. 3.50. Trigger amplifier (unit 9), lay-out 229
Fig. 3.51. Z-amplifier (unit 11), lay-out 232
Fig. 3.52. Intermediate amplifier (unit 12), lay-out 233
Fig. 3.53. Final Y-amplifier (unit 13), lay-out 235
Fig. 3.54. Trigger source unit (unit 16), lay-out 236
Fig. 3.55. Storage logic (unit 22), lay-out 237
Fig. 3.56. Additional power supply (unit 24), lay-out 238
Fig. 3.57. Storage amplifier (unit 25), lay-out 240
Fig. 3.58. Final X-amplifier (unit 26), lay-out 241
Fig. 3.59. Wiring diagram 245
Fig. 3.60. Vertical channels, circuit diagram 253
Fig. 3.61. Time bases and horizontal amplifier, circuit diagram 260
Fig. 3.62. Storage system, circuit diagram 267
Fig. 3.63. Z-amplifier, focus and power supply, circuit diagram 273

INHALTS VERZEICHNIS (der Bedienungsanleitung)
1. ALLGEMEINES 3g
1.1. Einleitung 3g
1.2. Technische Daten
1.2.1. Bildteil
1.2.2. Vertikale Oder Y-Achse 4^
1.2.3. Horizontale Oder X-Achse 43
1.2.4. Hauptzeitablekung 44
1.2.5. Verzogerte Zeitablenkung 44
1.2.6. X-Ablenkung 4g
1.2.7. Triggerung der Hauptzeitablenkung 40
1.2.8. Triggerung der verzogerten Zeitablenkung 45
1.2.9. Kalibrierungseinheit 45
1.2.10. Eingange/Ausgange an Ruckseite 47
1.2.11. Speisung 47
1.2.12. Einflussgrossen 47
1.2.13. Mechanische Daten 49
1.3. Zubehor 49
1.3.1. Mit dem Gerat geliefertes Zubehor 49
1.3.2. Wahizubehbr 49
2. BEDIENUNGSANLEITUNG 51
2.1. Allgemeines 51
2.1.1. Inbetriebnahme 51
2.1.2. Abnehmen und Aufsetzen der Abdeckhaube 51
2.1.3. Netzspannungseinstellung und Sicherung 51
2.1.4. Erdung 51
2.1.5. Einschalten 52
2.2. Bedienungsanweisungen 53
2.2.1. Bedienungsorgane und Buchsen 53
2.2.2. Vorbereitende Einstellungen 58
2.2.3. Eingange Aund Bihre Moglichkeiten 58
2.2.4. Triggerung 59
2.2.5. Dehnung der Zeitablenkung MAGN. 60
2.2.6. Gebrauch der verzogerten Zeitablenkung DEL. T.B. 60
2.2.7. Gebrauch der alternierenden Zeitablenkung ALT. T.B. 61
2.2.8. Gebrauch des dritten Kanal TRIGGER VIEW 61
2.2.9. Bedienung der Speicherfunktionen 62
3. SERVICE MANUAL (nur aufs Englisch)
Abb. 1.1. Tragbares Zweistrahl-Speicher oszilloskop PM 3266 39
Abb. 1.2. Minderung der hochstzulassigen Eingangsspannung 48
Abb. 1.3. Typische Ablenkempfindlichkeit fur interne Triggerung iiber Kanal A48
Abb. 2.1. Abnehmen der Abdeckhaube 50
Abb. 2.2. Ruckansicht des Gerats 50
Abb. 2.3. Vorderansicht mit Bedienungsorganen und Buchsen 24
Abb. 2.4. Abtasten der Wellen form mittels des LEVEL potentiometers 60

8
TABLE DESMATIERES (notice d'emploi)
1. GENERALITES
1.1. Introduction gg
1.2. Caracteristiques techniques gg
1.2.1. Tube arayons cathodiques gg
1.2.2. Axe vertical ou Y
*1 '*1 ^'
1.2.3. Axe horizontal ou Xgg
1.2.4. Base de temps principale yg
1.2.5. Base de temps retardee yg
1.2.6. Deviation Xy^
1.2.7. Declenchement de la base de temps principale 72
1.2.8. Declenchement de la base de temps retardee 72
1.2.9. Unite d'etalonnage 72
1.2.10. Entrees/sorties arriere 73
1.2.11. Alimentation 73
1.2.12. Conditions ambiantes 73
1.2.13. Caracteristiques mecaniques 75
1.3. Accessoires 75
1.3.1. Accessoires Iivres avec I'appareil 75
1.3.2. Accessoires en option 75
2. MODE D'EMPLOI 77
2.1. Generalites 77
2.1.1. Installation 77
2.1.2. Demontage et montage du couvercle frontal 77
2.1.3. Adaptation ala tension secteur et fusible 77
2.1.4. Mise ala terre 77
2.1.5. Enclenchement 78
2.2. Utilisation 79
2.2.1 Commandes et prises 79
2.2.2 Reglages preliminaires 84
2.2.3. Entrees Aet Bleurs possibilites 84
2.2.4. Declenchement 85
2.2.5. Agrandisseur de base de temps MAGN. 86
2.2.6. Utilisation de la base de temps retardee 86
2.2.7. Utilisation de la base de temps alternee (S2) 87
2.2.8. Utilisation de la troisieme voie TRIGGER VIEW 87
2.2.9. Utilisation des fonctions de memoire 88
3. SERVICE MANUAL (Seulement en anglais)
Fig. 1.1. Oscilloscope portatif double trace amemoire PM 3266 65
Fig. 1.2. Reduction de la tension d'entree maximale admise 74
Fig. 1.3. Sensibilites typiques pour declenchement interne et externe apartir de la voie A74
Fig. 2.1. Depose du couvercle frontal 76
Fig. 2.2. Vue arriere de I'appareil 76
Fig. 2.3. Vue avant montrant les commandes et douilles 24
Fig. 2.4. Analyse de la forme d'onde aI'aide du potentiometre LEVEL 86

9
1. GENERAL INFORMATION
1.1. INTRODUCTION
The PM 3266 is aportable storage oscilloscope with avery high writing speed (1000 DIV/ps). The instrument
enables the measurement of signals at ahigh sensitivity (2 mV/DIV) over an extensive bandwidth (100 MHz).
The oscilloscope has been designed using alarge number of integrated circuits, which guarantee very stable
operation and reduce the number of adjusting points. As an aid to checking and adjusting, test points have
been included at appropriate positions around the circuit. The instrument features various storage functions
such as normal and fast writing speed and auto erasure.
There is awide 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 amain and delayed time-base.
Additional features of the PM 3266 are the 3rd channel TRIG VIEW and ALTernateTB facilities.
TRIG VIEW enables the display of the trigger signal (internal or external applied) via a3rd channel by
push-button selection.
ALT.TB offers the instrument user asimultaneous display of the signal on the two time scale provided by the
main time-base and the delayed time-base.
The PM 3266 oscilloscope features atapless power supply that covers two voltage ranges, 90 Vto 140 Vand
200 Vto 264 Vby means of aswitch, thus obviating the need for continuous adjustment to the local
mains voltage.
All these features make the oscilloscope suitable for awide range of applications.
Fig. 1. 1. Portable dual-trace Storage oscilloscope PM 3266

10
1.2. CHARACTERISTICS
This instrument has been designed and tested in accordance with lEC Publication 348 for Class 1instruments
and has been supplied in asafe condition. The present Instruction Manual contains information and warnings
that shall be followed by the purchaser to ensure safe operation and to retain the instrument in asafe condition.
This specification is valid after the instrument has warmed up for 30 minutes.
Properties expressed in numerical values with tolerances stated, are guaranteed by the manufacturer.
Numerical values without tolerances are typical and represent the characteristics of an average instrument.
CRT section
Designation Specification Additional information
CRT type PHILIPS L14-140GH/95 Storage tube with high writing speed, image
transfer and scan magnification in vertical
direction.
Rectangular tube face, post accelerator and
metal-backed phosphor.
Useful screen area 8 X 10 DIV 1DIV equals 0,9 cm.
Vertical and horizontal straight lines shall be
presented as straight lines on the c.r.t. in the
central 7x 9 DIV screen area.
Screen type P31 (GH)
phosphor
Total acceleration voltage 10 kV
Graticule Internal Non-illuminated
Engravings Dotted lines at 1,5and 6,5
DIV from top of display
provide measuring lattice
for checking of rise-time
Writing speed 1000 D\yips In FAST mode. Not guaranteed for the
square areas of 2by 2divisions in each
screen corner
2,5 DIV/ps In WRITE mode and MAX position
0,25 DlVZ/ts In WRITE mode
Storage time 1hour max. In STORE mode: dependent on the position
of the INTENS (brightness) control
60 sec. In the WRITE mode at max. intensity
15sec. In the MAX WRITE mode at max. intensity
15sec. In the FAST mode at max. intensity.
Persistence 0,3 sec ... 1min Operative in WRITE MODE.
Continuously variable.
Auto Erase Operative in Fast mode In the auto-erase mode the following cycle
with VIEW TIME control occurs: the stored picture is erased. If the
out of the MAX position. time-base is triggered anew picture is written.
View time continuously After the adjusted view time another cycle
variable between 3and starts and the picture is erased, etc.
8sec. In the FAST mode the AUTO, TRIG and
SINGLE pushbuttons are inoperative. Their
function is taken over by the storage unit.
Erase time 1,3 sec. in WR ITE mode These values represent the time between the
1,6 sec. in FAST mode release of the ERASE button and the end
of the erase cycle. The erase button resets the
main time-base.
Trace rotation Screw<lriver adjustment Accessible via one of the ventilation holes on
point the left-hand side of the instrument

11
Designation Specification Additional Information
1.2.2. Vertical or Yaxis
1.2.2. 1. Response (2m Vrange excepted) For 2mV spec, see 1.2.2. 13. 35 MHz at 2mV
Frequency range d.c. to 100 MHz —3 dB bandwidth d.c. coupled
a.c. 7Hz to 100 MHz —3 dB bandwidth a.c.coupled
frequency range includes 10:1 probe
over 20-30 °C
Rise-time 3,5 ns
Pulse aberrations ±4% peak-peak Over 6divisions, -t5 —40°C
1.22.2. Deflection coefficient
2mV/div ... 5V/div
(for 2mV spec, refer to Section 1.2.2. 13.)
Eleven calibrated positions in 1-2-5
sequence. Uncalibrated continuous control
1:2,5. Uncal. lamp signalling.
Error limit ±3% Except linearity of CRT.
Maximum permissible input
voltage ±400 Vd.c. +a.c. peak. Derating at frequencies
above 500 kHz. See Fig. 1.2.
Maximum undistorted deflection 24 divisions Up to 35 MHz
Shift range 16 divisions 8divisions each in upward and downward
direction from the central horizontal
line of graticule.
1.2.2.3. Input impedance 1M12(±2% )//^ 15pF
Input RCtime 22 ms Coupling to AC
I.2.2.4. Instability (for 2mV/DIV setting refer to 1.2.2.13.).
Instability of trace 0,1 div/hour 20-40 °C temperature range
Trace jump 0,2 div When switching between any of the
attenuator positions
Trace jump 0,5 div When operating the NORM/INVERT
switch
Trace shift 0,2 div When rotating the continuous attenuator
0,4 div in 5mV setting
Trace shift 1div When switching to the ADDED position.
0,4 div in 5mV setting.
Increasing when rotating the continuous
attenuator.
1.22.5. Short-term temperature drift As 1.2.2.6.
1.2.2.6. Long-term temperature drift 20 mV/°C Typical value
1.2.2.7. Visible signal delay 15 ns approx.
1.2.2.8. Display modes Channel +or —Aonly
Channel +or —Bonly
Trig, view only
Channels ±Aand ±Bchopped
Channels ±Aand ±Balternated
Channels ±Aand ±Badded
±A, ±Band Trig, view chopped
or alternated (3 channels
display) If 3channels display is selected in
combination with alternate time-base
display, this will be automatically
displayed in main time-base intensified
mode. Refer to 1.2.2.1 2. for full trig,
view specification.

12
Designation Specification Additional Information
I.2.2.9. Chopper frequency ^1MHz Display time per channel 350 ns approx.
1.2.2. 10. Cross-talk between channels 1:500 Up to 50 MHz
With 8divisions of signal amplitude on
one channel, cross talk on other channel
within line width, up to 35 Me. Both
attenuators in the same setting.
1.2.2.11. Common mode rejection factor Better than 100 up to 2MHz Measured with -rA and -B added.
20 at 50 MHz Max. common-mode signal 8divisions.
1.2.2.12. Trigger view display External or internal trigger
signal.
Deflection coeff. Same as vertical
External 100mV/div±3%
External 10 1V/div ±5%
Internal Vertical ±10 %
Trigger point (threshold) Screen centre ±0,3 div Coupling d.c.
Aberrations ±10% peak-to-peak
Time delay between vertical
input and external input 3ns ±1ns
Bandwidth 80 MHz Typical value
1.2.2. 13. Specification of 2mV/div
setting
a. Deflection coeff. 2mV/div
Error limit ±5%
b. Response
Frequency range DC 0... 35 MHz -3dB
AC 7Hz ...35 MHz -3dB
Rise time 10 ns
Pulse aberration ±5%peak-to-peak
Common mode rejection
factor Better than 100 up to 2MHz
c. Instability
Instability of trace 0,25 div/hour 20-40 °C temperature range
Trace jump 1div When switching from 5mV to 2mV
attenuator position
Trace jump 2div When operating the Normal/Invert switch
Trace shift 1div When rotating the continuous attenuator
Trace shift 1div When switching to ADDED position

13
Designation Specification Additional Information
1.2.3. Horizontal or XAxis
1.2. 3.1. Display modes Main time-base
Main time-base intensified
by delayed time-base
Delayed time-base
Main TB intensified and
delayed TB alternately
displayed.
X-Y and X-Y/Y operation
With possibility of trace separation of
4divisions.
Xdeflection by;
—channel Asignal
—channel Bsignal
—signal applied to EXT connector of
main TB
—line voltage
1. 2. 3. 2. Horizontal position drift in
XI position 0,2 div/hour The horizontal position drift with the
magnifier in the XI position, shall not
exceed 0,1 div/hour over 20-40 °C
temperature range. The same stability
requirement applies to the start of the
sweep during variation of the sweep
speed setting, with exception of highest
sweep ranges (50-100 ns/div).
1. 2.3.3. Horizontal position control ±5,2 div from screen centre The horizontal shift control combines
coarse and fine adjustment.
1.2.4. Main Time-base
1.2.4. 1. Operation Automatic
Triggered and single shot
Automatic free running in the absence of
triggering signals, after less than 0,1 sec.
1.2.4. 2. Time coefficien f1s/div ... 50 ns/div 23 calibrated positions in a1-2-5 sequence
Uncalibrated continuous control 1:>2,5
between the steps.
One uncal. lamp for both MTB and DTB.
1. 2. 4. 3. Coefficien terror
The difference in sweep
accuracy over any two div.
-H20 °C ... -t-30 °C
-I- 5°C ... +40°C
The difference in sweep accuracy over any
two divisions of 10 div sweep is ±5%,
excluding the first and last div at the 5ns
and 10 ns magnified sweep rates.

14
Designation Specification Additional Information
1.2. 4.4. Expansion
Magnification lOx Switched, calibrated.
The display when coinciding with the
central horizontal graticule line shall not
shift more than one div when the
horizontal magnifier is changed from
XI to X10.
Coefficient error +1%additional First and last 50 ns of 5ns/div, 10 ns/div
and 20 ns/div magnified sweep rates
+5%.
Max. effective time
coefficient 5ns/div
1.2.4. 5. Variable hold-off time
1.2.5. Delayed Time base
1.2.5. 1. Operation
1. 2. 5. 2. Comparator long-term
stability
1. 2.5.3. Time coefficient
1. 2. 5. 4. Coefficien terror
The sweep hold-off time can
be increased by afactor of 10.
Delayed time-base starts
optionally either immediately
after the delay time, or upon
arrival of the first trigger
pulse after the delay time.
<2div at 1000 times
magnification
0,5 s/div ... 50 ns/div
±2 %
±3 %
With MTB at 1ms/div and DTB at 1Ms/d'v
aselected signal detail in the DTB mode
shall not move more than two divisions
after warm-up
22 calibrated positions in 1-2-5 sequence
Uncalibrated continuous control 1:2,5
between the steps. One uncal. lamp for
both MTB and DTB.
+20 °C ... +30 °C
+5°C... +40°C
The difference in sweep accuracy over any
two divisions of 10 div sweep is ±5%,
excluding the first and last div at the 5ns
and 10 ns magnified sweep rates.

15
1.2.5.5.
Designation Specification Additional Information
Continuously variable between Calibrated.
Ox and lOx the time coefficient
of the MTB Range delay-time multiplier 0,00-9,99
Incremental accuracy 0,5 %typical 0,2 %.
1. 2.5.6. Delay-time jitter 1:20.000
1.2.6. XDeflection
Xdeflection via channel
or Yg 2mV/div ... 5V/div Uncalibrated continuous control 1:2,
5
via Ygain potentiometer.
-1.26.1. Coefficient error ±5%
1.26.2. Bandwidth 0-2 MHz —3 dB bandwidth over 4div.
1.26.3. Maximum undistorted
delfection 20 divisions up to 100 kHz
1.26.4. Phase difference with
respect to Ydisplay 3° at 100 kHz
External X-deflection via EXT socket
1.26.5. Deflection coefficient
External 50 mV/div Uncalibrated qontinuous control 1:3
External -i- 10 500 mV/div
1.26.6. Accuracy
__ External ±3%Additional 27ofor Ext. :10
1.26.7. Bandwidth d.c. ... 2MHz Via DC trigg. coupling
-7Hz ... 2MHz via LF or HF trigg. coupling
1.26.8. Input characteristics Identical to Ychannels
1.26.9. Phase difference
Y-channels
3° at 100 kHz
_1.2.6.10. Linearity 1,5%
1.26.11. Drift 0,2 div./hr.
-1.2.7. Triggering of the main time-base
1.27.1. Trigger source Internal from channel A
Internal from channel B
Composite Aand B
Internal from line
Alternate vertical mode only
External source
External source -r 10
1.27.2 Trigger modes Automatic Automatic free-run of the time-base
generator approx. 100 ms after
Trigg, and single sweep
disappearance of the trigger signal.
NOT TRIG'd lamp is illuminated after
reset and extinguishes at the end of the
1.27.3. Slope -t or —
sweep.

16
Designation Specification
I.2.7.4. Trigger sensitivity lnternal:0,5 div. upto
1,5 div. at 100 MHz
External: 50 mV upto
150 mV at 100 MHz
External-H 10 :500 mV
1.Z7.5. Trigger modes and coupiing DC: 0-full bandwidth
LFint: 0-30 kHz
LFext: 7Hz -30 kHz
HF: 30 kHz -100 MHz
AUTO; 20 Hz -full bandwidth
I.2.7.6. Level range
internal trigg. 24 DIV
external trigg. -1-1,2 Vto -1,2 V
external :10 -(-12 Vto -12 V
1.2. 7. 7. Input characteristics 1Mn(+ 2%) //=« 15pF
1.2. 7. 8. Trigger jitter Better than 0,5 ns
1.2.8. Triggering of the delayed time-base
1.2.8. 1. Source Internal from channel A
Internal from channel B
External
1.2.9. Calibration unit
1.2.9. 1. Output voltage 3Vp.p
I.2.9.2. Output current 6mA
I.2.9.3. Error Ur lit +1%
I.2.9.4. Frequency 2kHz ±2%
I.2.9.5. Protection The output is protected
against continuous short-
circuiting.
1.2.10. Additional Input and Outputs
1.2. 10. 1. Z-modulation DC coupled
TTL compatible
Positive polarity
Blanks display
response time 35 ns
input impedance 10 kJ2
max. input voltage 50 V
1.2.10.2. Main TB Gate 0... -f5 V
delivered during MTB sweep
1.2. 10.8 Delayed TB Gate 0... +5 V
delivered during DTB sweep
Additional Information
Typical sensitivity as afunction of
freauencv. see Fio. 1.3.
Typical sensitivity as afunction of
frequency, see Fig. 1.3.
Both internal and external
-3dB
-3dB
—3 dB, both internal and external
Other characteristics are identical to
TRIGGERING OF THE MAIN-TIME
BASE. Except Ext. :10 and line trigg.
Both voltage and current
Optionally available
Output impedance 1KOhm.
Optionally available
Output impedance 1KOhm

17
Designation Specification Additional Information
1.2.11. Power supply
1.2. 11. 1. Line voltage 90... 140 Va.c.
200..
.264 Va.c.
250..
.350 Vd.c.
Automatically protected against incorrect
setting of line selector
1.2.11.2. Line frequency 46 to 440 Hz
1.2. 11.3. Power consumption 50 W
1.2.11.4. Power transients Damage to the oscilloscope shall not
occur under voltage and frequency
transient conditions specified in
MIL-T-28800.
1.2.12. Environmental characteristics
Note:
The characteristics are-valid only if the instrument is checked in accordance with the official checking
procedure. Details on these procedures and failure criteria are supplied on request by the PHILIPS-
organisation in your country, or by N.V. PHILIPS' GLOEILAMPENFABRIEKEN, TEST AND
MEASURING DEPARTMENT, EINDHOVEN, THE NETHERLANDS.
1.2. 12. 1. Temperature tests
In accordance with IEC 68 Ab and Bb.
Operation: —1 5°C to -h55 °C.
Operation within specification: -(-5 °C to +40 °C. Exceptions on tolerances to be indicated per spec, point.
Storage: —55 °C to +75 °C.
1.2. 12.2. Altitude
In accordance with IEC 68-2-1 3test M.
Operation: to 15.000 feet (5000 m)
Derating; 1°C/1000 feet for the max. operating temperature
Storage: to 50.000 feet (17.000 m)
1.2.12.3. Shock
Operating: 30 g, half-sine, 1 1 ms duration, 2 shocks per axis per direction for atotal of 12 shocks.
1.2.12.4. Vibration
Operating: 15 minutes along each of 3axes.
0.025 inch p-p displacement (4 gat 55 Hz) with frequency varied from 10 Hz to 55 Hz to 10 Hz in one
minute cycles.
1.2.12.5. Recovery
Operates within 30 minutes coming from —10 °C soak, going into room condition of 60 %R.H. at 20 °C
1.2.12.6. Magnetic Shielding
In accordance with IEC 351 -22.3.1.
Amaximum deviation of 1div.
1.2. 12.7. Interference
VDE 0871 and 0875, storgrad K
1.2.13. Mechanical data
1.2. 13. 1. Dimensions Length 460 mm (16 1/4 in.) Excluding controls, cover and feet
Width 316 mm (12 1/4 in.)
Height 154mm( 61/8 in.)
1.2. 13.2. Weight 10,9 kg (21 lbs)