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Summary of Contents for PM 5101

Page 1: ...FF 2172 1 PS L F GENERATOR PM 5101 9445 0 1 01031 211168103 H99 450 03511 ...

Page 2: ... u M c prr 156l E 1319 PHILIPS Manual L F GENERATOR PM 5101 9445 0 1 01031 2 1268 03 9499 450 03511 ...

Page 3: ...2 IMPORTANT In correspondence concerning this instrument please quote the type mimber and the serial mtmber as given on the typeplate at the rear ofthe instrument ...

Page 4: ...RECTIONS FOR USE 9 lIT Operation 9 SERVICE NOTES 11 IV Technical descriptioo 11 V Gaining access to parts 14 VI Recommended batteries 15 VII Maiotenance 15 VIII Survey of adjusting elements 16 IX Checking and adjusting 16 X Replacing parts 19 XI List of parts 20 ...

Page 5: ...ront view with indication of the controis 9 2 Block diagram 12 3 Removing the knobs 14 4 Square wave voltage shape 18 5 Front view with indication of the mechanical parts 20 6 Inside view 24 7 Vnit A 25 8 Circuit diagram 27 ...

Page 6: ...ces are guaranteed Numerical values without tolerances are intended for information purposes only and indicate the properties of an average instrument The numerical values hold good for the nominal mains voltage unIess otherwise stated 1 Frequency ranges 10 Hz 100 Hz 100 Hz 1kHz 1kHz 10 kHz 10 kHz 100 kHz Frequeocy ioaccuracy 5 l Hz at 20 C and a 16 V supply voltage 0 1 io the 10Hz to 1kHz range F...

Page 7: ... change in the battery voltage 14 to 18 V at a constant frequency 2 Output impedance O to 250 n dependent on the position of the amplitude control 3 Square wave output vojtage Amplitude Oto 4 Vp p when unloaded superimposed on an Oto 2 V d c voltage Continuously adjustable Amplitude cbange due to a change in the frequency at a constant battery voltage 0 5 Amplitude change due to a change in the ba...

Page 8: ...the peak peak value Mark space ratio see Fig 4 l I 5 for battery voltages of 14 to 18 V 4 Temperature range 17 to 40 C 5 Supply two 9 V batteries in series 6 Battery current 25 mA 3 mA at an 18 V supply voltage 7 Dimensions Width 25 cm 9i inches Depth 14 cm 5 inches Height 13 cm 5 inches 8 Weight 1 5 kg 3 75 Ibs without batteries 2 6 kg 5 75 lbs with batteries ...

Page 9: ...After approximately B ADJUSTING THE FREQUENCY The frequency ranges can be selected with knob FREQ Hz SK2 Continuous controi of the frequency within each range can be effected with the aid of the frequency selector Rl Rl f v PM 5101 LF GENER TOR IOH IOOkHz r 1 SK2 VOLTS FREQ Hl AMPLlTUO ON OFr r II l SKl r _ SK3 PEM 156 5 BUl BU2 E 13 25 Fig 1 Front view with indication o the controls ...

Page 10: ...to half the amplitude of the square wave voltage To obtain a square wave voltage which is symmetrical with respect to the zero line a circuit should be used for changing the d c voltage level in this case a capacitor The value of this capacitor depends entirely on the input impedance of the circuit to be fed and on the frequency For this reason no capacitor has been fitted in the apparatus Note Wh...

Page 11: ...the output voltage of the Wien network is three times smaller than that of the input voltage This means that in order to satisfy the oscillation condition the phase shift of the amplifier should be 0 and its gain factor should be 3 Coarse frequency controI in steps of one decade is achieved by switch ing the capacitors Cl2 C22 C29 C30 A tandem potentiometer Rla Rlb is employed for fine controi of ...

Page 12: ...ation With R26 the feedback has been adjusted so that the oscillator just starts oscillating The shunt resistance of the Wien bridge Rl b is connected to the amplifier input in such away that the base current required for transistor TSl passes through this potentiometer The base voltage divider is formed by the resistor circuit Rll Ri of TS2 R8 R7 and R6 On account of this galvanic coupling ofTSl ...

Page 13: ...ed to an amplitude limiter TS6 TS7 The limiting action can be adjusted with potentiometer R20 Diode GR3 serves for rectification of the sinewave controI voltage and thus determines the working point of TS6 The amplitude of the squarewave output signal is stabilised by the biased diode GR2 The bias voltage for GR2 is provided by voltage divider R29 GRl D POWER SUPPLY The instrument is supplied by t...

Page 14: ... the positive and negative poles so that it is impossible to interchange the connec tions Refit the rear panel B THE PRINTED WIRING BOARD Remove the rear panel see V A The cabinet then can be removed The printed wiring board with all components is then accessible Tt is provided with figures l 8 corresponding to figures 1 8 in the circuit diagram These figures indicate the connection points between...

Page 15: ... 495 EMCE Germany Maintenance A THE CABINET If the cabinet becomes soiled it can after removal chapter V B be c1eaned with soap and water or with a light scouring agent B THE SEGMENT SWITCHES When the segment switches no longer function properly due to dirty coutacts they can be treated with switch oil for code uumber see chapter XI A This oil has cleaning and lubricating properties ...

Page 16: ...djusted They may differ from the data given in Chapter II All checks and adjustments should be carried out at a 16 V supply voltage uniess otherwise stated A BATTERY CURRENT Set SKl to position ON Measure the current consumption At a supply voltage of 18 V the current consumption should be 24 mA 3 mA in position 1 25 mA 3 mA in position B FREQUENCY RESPONSE CURVE 1 Mecbanical check Set the frequen...

Page 17: ...2 Set SK2 to position x l k Set the frequency dia1 to position 10 Check that the frequency is 10 kHz 2 If necessary correct the frequency with C22 Set the frequency dial to position 100 Check that the frequency is 100 kHz 2 If necessary correct the frequency with C1 Check the frequency at all ranges in the positions 10 25 40 70 and 100 of the frequency dia Tolerance 3 0 7 Hz C DISTORTION OF THE SI...

Page 18: ...at JO 30 and JOO kHz SK2 in position X lK Tolerance 1 of the output amplitude at 1 kHz E SQUARE WAVE VOLTAGE Set SK3 to position L Check that the mark space ratio at 2 kHz is 1 l see Fig 4 If necessary adjust with R20 Set attenuator R2 to position 2 0 V Check that the output voltage is 4 Vp _ 5 p Check that the sag at 50 Hz and 4 Vp _ is 10 mY p z x y mark space ratio z sag PEM 1515 E 1 320 Fig 4 ...

Page 19: ...ed in this apparatus After replacing parts it may be necessary to readjust the relevant part of the circuit see chapter IX Checking and adjusting During repJacement of parts the apparatus should be switched off For gaining access to parts see chapter V ...

Page 20: ...37 Cap for knob 5 4822 413 40211 Knob 5 4822 273 40058 Switch S K2 5 4822 290 40011 Socket 5 4822277 20014 5 4822 413 70017 Cap 5 4822 522 30465 Dia 4822 390 10007 Switch oil 2 3 4 2 5 6 7 2 8 2 9 10 l bot Switch SKI SK3 9 10 0 __ _ PM 5101 LF GENE RATOR I O z I OO k z _ 1 3 4 5 6 r 8 ON Off 11 r a 7 PEM 1565 EI324 Fig 5 Front view with indication of the mechanical parts ...

Page 21: ...e E24 10 MO 5 Resistencia bobinada 0 Carbon resistor E12 series Wire wound resistor C Kohleschichtwiderstand Reihe E12 Drahtwiderstand Koolweersund E12 reeks 0 5 W 1 5MO 5 Draadgewonden weerstand 5 5 W 200 0 10 Resisunce au carbone serie En 1 5MO 10 Rchistance bobinee 200 O S Resistencia de carb6n serie E12 Resistencia bobinada Wi re wou nd resinor Drahtwiderstand Draadgewonden weersund 5 Resistan...

Page 22: ...0381 64 lF 64 Electrolytic C7 4822 124 20399 250 lF 25 Electrolytic Cll 4822 124 20399 250 lF 25 Electrolytic C12 4822 121 50421 0 16 lF 63 Polystyrene C14 4822 121 50421 0 16 j tF 63 Polystyrene CI5 4822 121 50235 3300 pF 125 Polystyrene C16 4822 121 50419 33000 pF 63 Polystyrene Cl7 482212150419 33000 pF 63 Polystyrene C18 4822 121 50235 3300 pF 125 Polystyrene C19 4822 121 50421 0 16 lF 63 Poly...

Page 23: ...22 130 40324 Transistor TS3 BCY70 4822 130 40324 Transistor TS4 BCY72 4822 130 40486 Transistor TS5 BCY72 4822 130 40486 Transistor TS6 BCY72 4822 130 40486 Transistor TS7 BCY72 4822 130 40486 Transistor GRl BZY88 C4V7 4822 130 30264 Zener diode GR2 BAX13 482213040182 Diode GR3 BAX13 4822 13040182 Diode ...

Page 24: ...24 Rl 5i1W_ Fig 6 Inside view C22 ...

Page 25: ...25 L SK 3 Cll _ _ ooI 5 Rlb SK2 PEM 4933 Fig 7 Unit A ...

Page 26: ...ii T 101 t 1 CBUl 1 I e30 I I I 18V 18 V 18V 18 V L1 JO 1H L ________ _____ _ Erratum the vaJue of e23 has been changed into 270 pF e23 150 GR3 I BAX13 ell I I I I I I 1 00 B U 2 e l0 510 e22 6Ö e9 JO I PEM 4931 Fig 8 Circuit diagram ...

Page 27: ...l Asta 2222 Deutschland Bundesrepublik Philips Industrie Elektronik GmbH Röntgenstrasse 22 Post fach 111 2 Hamburg 63 tel 501031 Ecuador Philips Ecuador S A Casilla 343 Quito tel 30064 Egypt Resident delegate office P O B 1687 43 Kasr El Nil Street Cairo tel 74933 El Salvador Philips de El Salvador Apartado Postal 865 San Salvador tel 7441 Espaiia Philips Iberica SAE Avenida de America Apartado 20...

Page 28: ...ter Room 715 Don Santiago Bld 13 1 I Taft Avenue Manila Portugal Philips Portuguesa S A R L Rua Joaquim Antonio d Aquiar 66 lisboa tel 683121 9 Rhodesia Philips Rhodesian Private Ltd P O B 994 Gordon Avenue Salisbury tel 29081 Rwanda Philips Rwanda SAR L B P 449 Kigali Schweiz Suisse Svizzera Philips A G Binzstrasse 18 8027 ZOrich tel 051 4422 11 Singapore Philips Singapore Ltd P O B 1358 N T S Bu...

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