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Summary of Contents for PM 5508

Page 1: ...94994900491 1 PHILIPS PAL COLOUR PATTERN GENERATOR PM 5508 9449 055 080 1 1t 369 302 03 04 ...

Page 2: ...i 1 1 PHILIPS 1 i A Operating manual PAL COLOUR PATTERN GENERATOR 9499 490 04911 PM 5508 9449 055 080 1 11 369 3 02 03 04 w ...

Page 3: ... Earthing 19 C Connections 19 VII Application 23 VI Operation 21 A Pattern 1 Cf1ECKERBOARD 24 B Pattern 2 WHITE 28 C Pattern 3 RED 29 D Pattern 4 GREYSCALE 31 E Pattern 5 DOTS 33 F Pattern 6 CROSSHATCH 35 G Pattern 7 DELAY 38 H Pattern 8 PHASE 44 I Pattern 9 MATRIX 50 J Pattern 10 COLOUR BAR 52 K Adjusting with the oscilloscope 58 Addresses 81 N V PHILIPS GLOEILAMPENFABRIEKEN EINDHOVEN THE NETHERL...

Page 4: ...tian blinds in bar 3 detail 41 VII 17 Venetian blinds in bar 2 detail 41 VII 18 PHASE pattern 44 VII 19 Vectorscope display of the PHASE pattern 45 VII 20 Incorrect subcarrier phase to the R Y demodulator 46 VII 21 Incorrect subcarrier phase to the B Y demodulator 47 VII 22 Incorrect subcarrier phase to both demodulators R Y and B Y 48 VII 23 MATRIX pattern 50 VII 24 Vectorscope display of the MAT...

Page 5: ... 36 Both demoduUators adjusted incorrectly 61 VII 37 Correct G Y signal 62 VII 38 Incorrect G Y signal 63 Circuit diagrams 66 etc IMPORTANT In correspondence concerning this instrument please state the type serial and instrument number as given on the identification plate at the rear of the instrument t 1 1 1 1 r r ...

Page 6: ... means of which the complete receiver performance can be checked by simply observing the patterns on the screen A complete test will only take a few minutes If during this test it is observed that the receiver requires realignment the latter can easily and accurately be done with the aid of the generator signals Re adjustments of the delay line circuit the chroma demodulators and the ampli tude ra...

Page 7: ...een 0 and 200 fixed nominal position Composite 1 Vp p video signal externally available LINE and FRAME SYNC signals externally available for triggering purposes Handy small and light weight instrument suited for workshop as well as mobile service a ...

Page 8: ...HF channels and 4 VHF channels or 3 VHF channels and the vision IF carrier Spacing of vision and sound carriers PM 55088 6 0 MHz CCIR system I PAL system I PM 5508E 5 5 MHz CCIR systems B G and H PAL system G Frequency drift of sound subcarrier 0 1 10 40 C Video modulation Modulation AM negative Residual carrier i 5 at 100 white Vision modulator balanced diode type max unbalance 5 Differential pha...

Page 9: ...1 1 MHz 3dB Group delay precorrec tion of Chroma signal 175 ns Colour matrixing Y 0 30 R 0 59 G 0 11 B Patterns CHECKERBOARD 6 x 8 black white squares accurately centred WHITE 100 white signal with PAL alternating burst RED fully saturated red signal with PAL alternating burst GREYSCALE staircase signal with 8 identical steps DOTS white dots location corresponds to the intersections in the Irossha...

Page 10: ...rnating burst however completely PAL encoded 75 contrasted pilture Upper part colour bar signal with 8 vertical bars white yellow cyan green magenta red blue and black Lower part white Bar Relative luminance amplitude Chroma phase Relative chroma amplitude White 0 75 Yellow 0 67 167 0 33 Cyan 0 53 283 0 47 Green 0 44 241 0 44 Magenta 0 31 61 0 44 Red 0 23 103 0 47 Blue 0 08 347 0 33 Black 0 Synchr...

Page 11: ...24 lines 12 8 µs 312 lines 288 lines 64 us 51 2 us 5 30 70 4 8 us 1 9 us 6 1 us 20 mV if loaded with 75 52 or 40 mV if loaded with 300 52 via matching transformer 75 52 300 S2 continuously adjustable 15 mV if loaded with 75 2 or 30 mV if loaded with 300 S2 via matching transformer 75 S2 300 52 continuously adjustable 75 52 4 1 BNC female 1 Vp p if loaded with 75 S2 white positive sync negative 75 ...

Page 12: ...imensions Height x width x depth Weight _ III ACCESSORIES 5 Vp p unloaded positive 10 kn 4 mm banana sockets 115 V or 230 V 20 50 60 Hz 15 W at 220 V 200 mA delayed action type Modular cabinet 195 x 305 x 275 mm width 4 units 6 1 kg 1 Operating manual 1 Mains flex 1 RF cable with only with PM 5508E a matching transformer 75 52 300 52 ...

Page 13: ...The delay line 0 375 us com pensates for the time delay which arises when the colour signals are encoded The R G and B signals are generated in the colourbar generator This gene rator is followed by a matrix adding the R G and B signals in such a way that the correct Y R Y and B Y signals are obtained The step signal Y of the greyscale signal is also generated in this matrix The colour subcarrier ...

Page 14: ...erating according to the diode switching principle This subcarrier oscillator itself can be switched off if desired In an adder stage the sound subcarrier is added to the composite video signal From there it is applied to an RF modulator and via an RF attenuator to output socket RF The instrument is provided with an stabilised power supply with short circuit protection circuit ...

Page 15: ...ator U4 U2 6V r B Y modulator U4 m 4 1 Div U2 8l 31 Div U _1 2 124 M m 9urstampl R1 0 200 g SK2 100 T 1 Chrominance adder Luminance ampL U2 13 1 Div 1 m i Field blank gen N 2 Field sync 9 Y3 1 a Z y 1 1 v c o 0 m rn b m o Z_2 a 2 n co a 1 1111111 Gate circuit for BI Wh pattern U2 U3 in a w 1 11 Gate circ for ync blank 11 Luminance sync blank adder U2 Y Delay U4 1 L Video ampl U4 1 Y N 0 n Frame in...

Page 16: ... the printed wiring unit which should then be hinged out The fuse 200 mA delayed is then accessible B Earthing Earth the instrument in accordance with the local safety regulations This can be done via the mains flex as it is equipped with a plug with rim earthing contacts or via the earth screw at the rear of the instrument Not only the metal cabinet is then earthed but also the common of the circ...

Page 17: ... 75 S2 can be taken from this socket If loaded with 75 5 the output amplitude is 1 Vp p SYNC If an oscilloscope is to be triggered externally for some measurements connect the sockets SYNC to the external trigger input of the oscil loscope Set switch SYNC to position LINE in case this triggering is to take place in the line sync pulse rhythm and to position FRAME in case of triggering with field s...

Page 18: ...nected direct to the chassis Therefore before measuring on the receiver connect it to the mains via a separating transformer Switch on the colour receiver Switch on the generator switch POWER to position ON One of the channel scales will be illuminated depending on whether aVHF or an UHF button is depressed Turn control BURST AMPL ully anti clockwise switch to position NOM clicking sound Switch fo...

Page 19: ...hat case the receiver should first be set to a higher channel than the generator etc Carry out the fine tuning adjustments so that the picture on the receiver contains colour while at the same time there is no sound in the picture Set the generator to the GREYSCALE pattern Adjust controls BRIGHTNESS and CONTRAST of the receiver to obtain correct settings i e the left vertical bar should be white a...

Page 20: ...e IF range common for TV receivers around 38 9 MHz The indication 2 on the VHF channel scale is therefore replaced by the indication IF The user can now determine whether the incorrect functioning of the receiver is due to a defect in the channel selector Procedure If when following the procedure described in chapter VI OPERATION there is doubt whether the incorrect functioning of the receiver is ...

Page 21: ...eck for correct horizontal and vertical synchronisation 2 Check for correct position of the picture deflection yoke 3 Check for correct horizontal and vertical amplitude of the deflection picture height and width the CHECKERBOARD pattern con sists of 6 x 8 squares Lr ...

Page 22: ...n w r n n n n n n w 25 Fig VII 2 Incorrect vertical amplitude and linearity 4 Check for correct horizontal and vertical linearity of the deflection Fig VII 2 shows incorrect vertical amplitude and linearity ...

Page 23: ...26 Fig VII 3 Incorrect centring 5 s Check for correct horizontal and vertical centring of the picture Fig VII 3 shows incorrect centring u u Y Y Y Y u Y Y Y Y ...

Page 24: ...ensitivity of the receiver by means of control RF OUTPUT 10 Check the suppression of the sound intercarrier No sound should appear in the picture when switch SOUND CARRIER is set to position UNMOD 11 Check that there is no I f sound in the picture due to e g microphony or expressive power consumption of the sound output stage This should be done with switch SOUND CARRIER in position MOD 12 Check t...

Page 25: ...t ment is required after e g replacement of the picture tube This should be done with control BURST AMPL in position NOM Some colour receivers switch automatically from black white white to colour white standard White C This the so termed preferred white adjustment can be checked by setting control BURST AMPL from 0 to NOM and back 3 This pattern is also necessary to check and readjust the limitin...

Page 26: ...ern This pattern consists of a fully saturated red signal with PAL alternating burst 1 Furst set the brightness and saturation controls of the receiver clockwise and then turn them anti clockwise until the blue and green dots disappear and only the red dots remain ...

Page 27: ... that the green and blue guns need not be switched off Larger convergence errors may have an effect on this check Fig VII 6 shows a purity error 3 This pattern can also be used to check whether ablack white receiver suffers from excessive interference due to the colour subcarrier u u Y Y Y Y Y ...

Page 28: ...black level is kept constant and is not effected by operation of the contrast while each of the 6 steps in between should show an equel increase of grey from left to right 2 Check the proper greyscale setting of the colour receiver The various greybars should not contain any colour If the greyscale setting is not correct the ratio between the beam current and the control grid curves of the three g...

Page 29: ...he video amplifier of the receiver with the contrast control at maximum Check that each step of this grey scale signal at the output of the video amplifier is equal This can easily be measured by comparing it on the dual beam oscilloscope PHILIPS PM 3230 with the signal on socket VIDEO Y Y u r r r r r r r r i ...

Page 30: ...1 Check and if necessary re adjust the static convergence in the centre of the screen at low ambient brightness This should be done according to the instructions of the manufacturer of the receiver Fig VII 9 shows a detail of an incorrectly converged picture ...

Page 31: ...34 Fig VII 9 Detail of incorrectly converged picture ...

Page 32: ...d if necessary re adjust the horizontal and vertical dynamic convergence This should be done according to the instructions of the manufacturer of the receiver Fig VII 11 shows incorrect horizon tal dynamic convergence Fig VII 12 shows a picture detail in case of incorrect dynamic convergence ...

Page 33: ...36 s _ et _ t Fig VII 11 Incorrect horizontal dynamic convergence r Fig VII 12 Picture detail in case of incorrect dynamic convergence ...

Page 34: ...response is correct The vertical white lines have a width of 200 ns If these lines appear unsharp and show considerably less inten sity than the horizontal ones the amplitude response of the receiver is insufficient If the vertical white lines appear double the circuits of the receiver cause ringing 3 Check the pin cushion correction of the receiver This correction requires readjustment if the whi...

Page 35: ...grey on some receivers these grey bars appear slightly bluish this however is of no importance for this measurement The colour difference signals of this pattern are encoded according to the NTSC standard i e the R Y information is not line sequentially reversed in phase The burst in this signal however is normally encoded according to the PAL standard i e the burst is line sequen tial in the 135 ...

Page 36: ...pre adjustment of the subcarrier phase to the B Y demodulator should be made This is because the chroma signal in bar 3 represents B Y 0 and only contains R Y information If the B Y demodulator produces an output signal during that bar i e if that bar differs from bar 4 the one without chrama the subcarrier phase to the B Y demodulator will not be correct ...

Page 37: ...re detail showing the Venetian blinds effect 2 The delay line requires readjustment if the chroma contents of the successive TV lines does not seem to be the same and if the so termed Venetian blinds appear see Fig VII 15 ...

Page 38: ...linds in bar 2 detail 3 Readjust the delay line amplitude control for minimum Venetian blinds in bar 3 see Fig VII 16 and the delay line phase control for minimum Venetian blinds in bar 2 see Fig VII 17 Do not look at the colours but on ty for bhe appearance of the Venetian blinds effect ...

Page 39: ...due to the action of the R Y switch will cause a line sequentially varying colour on the screen This results in the appearance of Venetian blinds If only bars 1 and 3 contain Venetian blinds the only possible cause is an ampli tude deviation of the delay line circuit A phase error however will produce Venetian blinds in bar 2 as well as only a phase shift between two successive lines can produce a...

Page 40: ...n A n n n 43 4 If the delay line circuit is completely misaligned e g after replace ment of parts it is advisable to follow the procedure described in section K Adjusting with the oscilloscope on page 58 ...

Page 41: ...r part of the pattern is encoded according to the PAL alternating standard while the lower part con tains colour information only on every positive PAL line The latter means that only those lines with a burst phase of 135 carry colour information The burst is the normal PAL alter nating burst for the entire pattern see vectordiagram Fig VII 19 To ensure the same colour impression of the upper and ...

Page 42: ...e circuit of the subcarrier rege nerator in the receiver according to the instructions in the Service Notes of the relevant set 2 Check that the upper and lower parts of the pattern produce the same colours during the same vertical bars If the colours differ the chroma demodulators are not adjusted correctly ...

Page 43: ... phase to the R Y demodulator 3 A colour difference between the upper and lower parts of bar 2 R Y 0 indicates an incorrect subcarrier phase to the R Y demodulator See Fig VII 20 Readjust until the colour difference has been eliminated ...

Page 44: ...f bar 3 B Y 0 indicates an incorrect subcarrier phase to the B Y demodulator See Fig VII 21 Readjust until the colour difference has been eliminated 5 If the chroma demodulators are completely misaligned e g after replacement of parts it is advisable to follow the procedure described in section K Adjusting with the oscilloscope page 58 ...

Page 45: ... be varied only simultaneously In that case first adjust for example the R Y demodulator to obtain a correct adjustment for bar 2 and then the B Y demodulator for correct quadrature by observing bar 3 or vice versa Since there may be considerable interaction between these adjustments they often have to be repeated several times see Fig VII 22 r r r rr ...

Page 46: ...g to the PAL system these colours will not change until very large phase errors occur in the demodulators these colours will in fact only show a slight desaturation The changing of the colour in the lower part of for example bar 2 containing only B Y information is caused by the fact that due to an incorrect phase setting of the R Y demodulator this modulator is opened at the incorrect moments and...

Page 47: ...rated It is intended for checking amongst others the matrixing circuit This pattern consists of the same four vertical bars as the previous two patterns and is the same as the burst entirely encoded according to the PAL standard It is identical to the upper part of the previous pattern however with normal saturation see vector dia gram Fig VII 24 V r r ...

Page 48: ...ars 1 and 4 2 Bars 1 and 4 should disappear be cut off at the same moment _ when the brightness control of the receiver is turned anti clockwise If not the G Y output signal of the matrixing circuit is not correct Readjust according to the instructions in the Service Notes of the relevant receiver 3 If the circuitry is completely misaligned e g after replacement of parts it is advisable to follow ...

Page 49: ...sequence of decreasing luminance From left to right the bars are white yellow cyan green magenta red blue and black This pattern is used to set the customer controls of the receiver to the correct positions see section VI OPERATION pages 21 and 22 The lower part of this pattern serves as a reference to enable adjusting the amplitude ratio of the colour difference signals to the picture tube J Y 1 ...

Page 50: ...negative feedback of the colour difference signals to the Wehnelt cylinders On account of this the amplitude of these signals should be adapted to the degree of feedback For servicing these types of receivers the COLOUR BAR pattern consists of colour bars with a white lower section The white lower section which has the same video amplitude as the white bar in the upper part serves as a reference s...

Page 51: ...LOUR BAR pattern 1 With the aid of an oscilloscope check whether the amplitude of the B Y signal corresponds to the value specified by the manufacturer of the set If necessary adjust the amplitude with control AMPL B Y 2 Switch off the red and the green gun Adjust the contrast and satura tion controls so that there is no difference in brightness between the blue bars and the blue section at the bo...

Page 52: ...oo high Fig VII 28 Red colourdifference signal of COLOUR BAR pattern 3 Switch on the red gun and switch off the blue gun If required adjust AMPL R Y so that there is no difference in brightness between the red bars and the red section at the bottom of the picture See Fig VII 28 ...

Page 53: ...itch off the red gun If required adjust controls PHASE G Y and AMPL G Y so that there is no difference in brightness between the green bar and the green section at the bottom of the picture See Fig VII 29 5 Switch on the red and the blue gun again Control PHASE G Y will have to be used mainly to eliminate differences in bright Hess in the upper green bar See Fig VII 29d J 7 Y Y Y Y 1 1 1 1 ...

Page 54: ...st keying checking the colour AGC and the colour killer circuit by operating control BURST AMPL checking the reactance circuit of the subcarrier regenerator checking the synchronisation of the subcarrier regenerator checking the PAL identification circuit Note In case of fault finding in a receiver by means of following the signal through the various circuits it is recommended to employ a simpler ...

Page 55: ...nect the Y input of the oscilloscope to the red grid of the picture tube via an attenuator probe connect the YA input of the oscilloscope to the red grid of the picture tube via an attenuator probe Trigger the oscilloscope externally with the line sync pulses from sockets SYNC switch SYNC in position LINE Adjust the time base settings of the oscilloscope to obtain 2 4 TV line periods on its screen...

Page 56: ... grid is zero see Fig VII 30 upper trace R Y lower trace B Y It may seem that two successive lines on the scope screen show a different signal level so that the result two TV lines onto each other cannot be made zero This is an indication of cross talk between the B Y and R Y channel of the receiver In case of incorrect adjustments oscillograms as shown in Fig VII 31 and Fig VII 32 will be measure...

Page 57: ...cillogram as shown in Fig VII 33 Figs VII 34 VII 35 and VII 36 show oscillograms that will be obtained in case of incorrectly adjusted demodulators If the R Y signal cannot be made correct for both successive TV lines the R Y switch of the receiver does not switch exactly 180 Note The time base speed of the oscillograms is approx 6 5 µs division r r r u u r ...

Page 58: ...I Ia l t t ll f uu tuttiluuuauu Wtuu Fig VII 34 Only R Y demodulator adjusted incorrectly a r i ri ii i l i J Fig VII35 Only B Y demodulator adjusted incorrectly a w ss Fig VII 36 Both demodulators adjusted incorrectly ...

Page 59: ...e oscilloscope to the green grid of the picture tube via an attenuator probe Trigger the oscilloscope externally with the line sync pulses from sockets SYNC switch SYNC in position LINE Adjust the time base settings of the oscilloscop so that one TV line appears on its screen Depress push button MATRIX 1 1 1 1 1 1 1 ...

Page 60: ...sed by for example an incorrect ratio of the output signals of the delay line and or the demodulator circuits Fig VII 38 shows an incorrect G Y output signal of the matrix If the zero level of green does not remain the same as for grey when the contrast and saturation controls of the receiver are operated the chroma gain is too high incorrect chroma AGC so that the R Y _ and or B Y signal is clipp...

Page 61: ...1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

Page 62: ...SZ 16 1 R101 lEB T1 i VL1 200mA delayd I I ec2 use NF I ov ov R102 R102 BZ Y 59 TS 101 BC 107 R103 R105 u 1KB R106 R107 3E9 B 0 0 N TS 102 AC 126 R104 TGR 103 BZY 59 TS 2 A0 161 ov 0 6V UNIT 1 POWER SUPPLY ...

Page 63: ... R216 0 LINE INFORMATION GENERATOR 2 1 OIVI DER 6y R221 R222 sK6 czlz F 11 6V TS206 GR203 GR204 TS207 BSY38 0495 04 BSl 38 cz13 cn4 1H I 56 56 GR208 04 95 6V 6V 6V czlr 3i czle 7 1 2 1 DMDER LINE BlANhSNG GENERATOR 5 1 DIVIDER L UNIT 2a LINE INFORMATION C210 Q GR 238 rN Q GR215 r Ndl GR 239 lb GR216S GR243 C23 6V 6V 6V 6V 6V 1s BU1 Trigger via SK5 680 TS Z10 BSY38 TS211 BS 38 LINE SYNC GENERATOR i...

Page 64: ...RCUIT LIKE TS212 TS213 R251 R255 uo R240 R252 R256 39K R7l 1 R253 R254 K7 C221 C229 C230 p C223 _C231 C232 17 GR209 GRZfl GR21G 0495 TS212 TSZ16 75217 esr3e GR223 a 9s dSY3B GR225 ZBa 6 95 tr237 39K 770 L CIRCUIT TS 212 TS 219 COLOUR BAR GENERATOR 2l GENERATOR 2 1 DIVIDERI 2l PULSE FORMER 61 ry B B R R G G B B R G R257 R260 g 97K R261 R nK R262 G rBK R263 B 33K R264 R r7K R265 R266 g r K R 267 R e...

Page 65: ...N a C209 GR238 y 04 95 1 a C 210 GR239 OA 95 Nb 3 11 SK3 6 Bam1 Z R294 6V via SK3 5 o3K3 R2100 b via SK3 5 3 lb TS208 049 M ib 3 12 gg95 7 GRu via SK3 3 ls TS211 GR245 OA 95 fs 3 03 ee GR246M aa95 lv R2104 0 6V 6V GR234 M 04SS GR236 Q495 GR u 240 GR2b2 BA1Lb 75229 R2101 BSY3B w r I v R2103 1 TS230 iV BSY L L NIT 2c LINE INFORMATION 6V 6V 6V TS226 BC107 R296 R2105 R2106 r6V i_ Y R297 R299 J 9 4 26 ...

Page 66: ... GR312 JA95 1 1 3121 4 23 CIRCUIT LIKE TS301 TS302 R301 R319 R323 rKa R302 R320 R324 roK R321 2322 reK C301 C313 C314 7opF C303 C315 C316 rK GR301 GR307 GR308 OA9s TS301 TS307 TS308 BC107 GR313 OA95 GR314 OA95 TS 301 TS308 13 1 DIVIDER R329 OK C320 1 as r6V 6V 1 1 D C321 0 0 150K TS309 GR316 TS310 BC107 OA95 BC107 1 L301 14 I 6 3 1 D1VI DER BV i TS313 BC107 6V R338 0 roK T5314 BCI07 Ts3u FRAME BLA...

Page 67: ...5 KT401 6V C408 R405 pK R406 12 27 R407 SUBC OSCILLATOR AMPLIFIER 2l 2 14 or 2l 2 6 C415 R4107 via SK3 7 rouF R418 TS 407 ec ro7 V 6V R42 2N289 54 sv 60pF C414 416 xbK 6V M sv TS406 esv38 T 401 _ I B Y 8417 MODULATOR 90 PiiAaE SHIFT 6V R419 TS408 ASY 75 C426 f t 6V R421 TS410 C4i6 ecro7 TS409 ASY 75 6V 6V 016 I Ra20 I PAL swlrcH L _ UNIT 4a COLOUR ENCODER J T403 R Y MODULATOR ...

Page 68: ...16 Be l07 3 R417 C412 W R436 T 6Y R460 T R4391 R442 50 100 SAT T 41B B IOf 4R411I R446 h 6V R446 R464 C422 6V OON R448 GR401 R447 GR402 sA R 1 e u R461 R463 6V n R449 s GR403 T401 R46 R461 TS 419 Bc roe IC IOON R466 EV 6V TS 420 BC 107 h R456 T 6V T403 C426 IPDK R460 B Y MODULATOR GR 409 GR407 AAY 1I ION R466 GR4 0 B C427 HpF AAY7I rolr GR410 R466 N AAY 71 R467 R469 R470 IK2 C428 sEs AAY 71 IOI R4...

Page 69: ...6 Ac u7 L408 Y DELAY 6V 6Y 6V 6Y 6V 6V 6V 1000 H2 OSCILLATOR L 409 6V 1 R460 1 C433 TS423 IO AFIII R 461 R 9 R4 82 6V 6V IK T5426 RLBB BF ns R487 6V R4B3 u T5424 B6YlB 6V 6V YI DEO AMPLIFIER R4108 R490 C438r 100K T 6V 6V R499 o R497 GR412 C446 AAI IIS f T5429 AF_11I _ R464 LLos rlo IKI R466 C434 IKB R466 6V R4f08 OR411 0495 6V L412 410Q T C461 ION C450 IOK R 4101 4105 6V VOUTO 1 _ J BU 3 modulalor...

Page 70: ... Prags Boulevard 80 Kobenhavn tel Asta 2222 Deutschland Bundesrepublik Philips Industrie Elektronik GmbH Rbntgenstrasse 22 Post fach 630111 2 Hamburg 63 tel 501031 Ecuador Philips Ecuador S A Casilla 343 Quito tel 30064 EI Salvador Philips de EI Salvador Apartado Postal 865 San Salvador tel 7441 Espana Philips Iberica S A E Avenida de America Apartado 2065 Madrid tel 246 22 00 Ethiopia Philips Eth...

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