background image

Содержание HM 103-2

Страница 1: ...Instruments...

Страница 2: ...se T 3 X Y Operation T 3 Component Tester T 3 Trace Alignment T 3 Power Voltage Fluctuations T 3 Service instructions General SI Mains Line Voltage Change SI Instrument Case Removal SI Operating Volta...

Страница 3: ...Weight approx 3 7 kg Cabinet mm W 212 H 1 14 D 280 Colour techno brown Lockable tilt handle Subject to change Test Displays using the Component Tester Transistor Diode 10 MHz Compact Oscilloscope 1 C...

Страница 4: ...ding peak AC Cable length 1 2m High Voltage Probe HZ58 For measurement of voltages up to 15kVpp Input resistance approx 500mQ Recommended load resistance MQ 10MQ switchable Attenuation ratio 1000 1 Ba...

Страница 5: ...ate 200ns div one cycle will be displayed every O Bdiv The tolerance on indicated values amounts to 3 in the vertical and 5 in the horizontal deflection direction Ail values to be mea sured can theref...

Страница 6: ...nto operation in explosive corrosive dusty or moist environments The instrument may be operated in any position however the convection cooling must not be impaired Therefore when the instrument is in...

Страница 7: ...oscope by depressing the red POWER pushbutton An LED will illuminate to indicate the working order The trace displaying a baseline should be visible after a short warm up period of 30 seconds Adjust Y...

Страница 8: ...mended for the display of logic and pulse signals particularly if their pulse duty factor changes perma nently during operation Otherwise the display will move up and down with any change DC voltages...

Страница 9: ...see page M6 Connection of Test Signal With input coupling switched to GD and with the Y POS control a horizontal graticule line can be adjusted as a refer ence axis for ground potential It can be pla...

Страница 10: ...ferent set tings for the displayed pulse amplitude are possible Note All settings in the Y Section do not affect the time measure t V f 2 _ 4 2 r tot osc In this ttot is the total measured risetime lo...

Страница 11: ...hould be made by a shielded cable with BNC male connector at one end A resistor of approx 1 00 Q should be connected in series be tween cable core and connector core This resistor at tenuates radio fr...

Страница 12: ...ustment of these signals will require some care If it is found that a trigger point cannot be located on ex tremely complex signals even after repeated and careful ad justment of the LEVEL control in...

Страница 13: ...ircuit is shown by a straight vertical line Testing Resistors If the test object has a linear ohmic resistance both deflect ing voltages are in the same phase The test pattern ex pected from a resisto...

Страница 14: ...o the usual caution with single MOS components relating to static charge or frictional elec tricity In Circuit Tests Caution During in circuit tests make sure the circuit is dead No power from mains l...

Страница 15: ...ors Resistor 51 OQ Junction B C Junction B E Capacitor 33 Junction E C FET In circuit Semiconductors Z diode beyond 12 V Diode paraiieled by 680 Q 2 Diodes antiparaliel Germanium diode Thyristor G A t...

Страница 16: ...TR CAL m iMTENS o FOCUS O 0 2 V l l nEC3 OSCILLOSCOPE HM 103 2...

Страница 17: ...Vpp time related to vertical input signal The coupling mode for internal and external triggering is always AC coupled Composite video triggered at frame rate TV button depressed Use Normal Triggering...

Страница 18: ...e without any tolerances is practically impossible Astigmatism Check Check whether the horizontal and vertical sharpness of the display are equal This is best seen by displaying a square wave signal w...

Страница 19: ...ed For local manufacture the elec trical components required are a 1 MQ 1 resistor and in parallel with it a trimmer 3 1 5 pF in parallel with approx 20 pF One side of this parallel circuit is connect...

Страница 20: ...e cycles at least every 2div should be displayed measurement in the 50 s div range X Y Operation The deflection coefficient of the horizontal amplifier is approximately 0 45Vpp div This value can be c...

Страница 21: ...is unavoidable this work must be done by a specialist who is familiar with the risk involved When the instrumentis set into operation after the case has been removed attention must be paid to the acce...

Страница 22: ...ht It is strongly dependent on the 71 OCN comparator 1C If there are compelling reasons to replace this comparator it may be that triggering becomes too sen sitive or too insensitive caused by the 1C...

Страница 23: ...neck of tube This deviation can be eliminated by inserting an additional resistor 680 Q 0 25 W between trace rotation coil terminal TR 1 and either F 1 2 V or 1 2 V stop terminals on the TR pot Such...

Страница 24: ...lation has been established may further function tests with open chassis follow but with appropriate precaution ary measures Adjustments As advised in the Operating Test and Service Instructions small...

Страница 25: ...Basic Block Diagram HM 1 03 2...

Страница 26: ...Power Supply CRT and Unblanking Circuit Calibrator Trace Rotation HM 103 2...

Страница 27: ...Y input Attenuator Y Preamplifier and Trigger Pick Off HM 1 03 2 Anderungen vorbehalten Subject to change without notice S23 4 91...

Страница 28: ...ent Side HM103 2 Component Locations YIBoard HM 103 2 Y Final Amplifier HM 1 03 2 Component Locations Y Final Amp HM 103 2 Section of the Main Board nearby rear chassis S24 4 91 Ar derung n vorbehalte...

Страница 29: ...Trigger Circuit Comparator Timebase Sweep and X Amplifier X Final Amp CT Y Preamp HM 103 2 Anderungen vorbehalten Subject to change without notice S25 4 91...

Страница 30: ...fo TB Pcgd to CN 00 liD VR7W Ik 5 1 Jl B...

Страница 31: ...fc Q n o i o 1 0 O O CD D D D C CC C O CO ti c 2 C D O u t o c 2 2 _ 2 CD w P I H N CL _J H Q _ cc Z CC Ij CQCJOCJUQuJLLy_l_lCECO QC o oc H N H S o M j r o 0 c r E c 0 ci c O 2 c 0 C 1 i S n 5 E u _ _...

Страница 32: ...Adjusting Plan HM 1 03 2 A1 4 91 Anderungen vorbehalten Subject to change without notice...

Страница 33: ...Signal Generators Spain HAMEG S A Villarroel 172 174 08036 BARCELONA Telef 93 430 1 597 430 1 1 00 Telex 99816 Telefax 93 321 2201 Check Point Testers Primed in Germany Great Britain HAMEG LTD 74 78 C...

Отзывы: