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Summary of Contents for CTV S26K497

Page 1: ...e control R1043 VItrF IJHF hmtng U14 6 0 MHZ 34 47 MHz 4 43 MHz 220 240 V 280 W Slrlted for receptlon of black whlta and colour transmltters operatlng according to CCIR PAL standard Aerlal match tng Convergence tr ocus strng I F lumlnance I F sound s 604 PURLEY WAY WADDON CROYDON CHg 4DR TELEPHONE 0l 686 0505 Recorded messages after business hours TELEX 262308 Index CS27062 CS27074 CS26984 CS26985...

Page 2: ...er 33 on the houslng of the I C In thls case no brldge wire should be fltted ln parallel wlth R1513 MECHANICAL INSTRUCTIONS 1 Remove the screw from the upper slde of the cover to the left of the rear panel and remove thls cover Note The c nvergence panel ls provlded wlth explalnlng slgns to facllttat converglng The numbers lndtchte the sequence of converglng 2 Hlnglng out the chassls Remove the re...

Page 3: ...E U536c GR459 70 L72 L73 TS 25 L27 L28 L29 B 01 416t I I BURS BURST AMP io ra I B L 010 H OR IZON TA L TS 52 453 6R 90 91 8408t 8408p U589 e GR 495 Bl 10 t 11 u2 8L13 L1L B T 008 B L 009 B T 007 IF AMPLIFIER LUM IF AMP CHROM IF AMP OETECTOR B C 010 B L 008 U553o B r 007 PULSE AMP PHASE DISCR VERTICAL TS455 TS 456 6R 496 8116p L17 T597 B T 002 B T 003 EMITTER FOLLOWER L uM B T 007 TS15r 6R488 INTER...

Page 4: ... CONV STAT CONV B B 009 r B B 009 HOR CONV VERT CONV B B 002 B B 003 COLOUROIFF AMPS DC LEVEL SETTIN6 R Y AMPLIFIER BEAM CURRENT SETTING TS 445 MULTIVIERATOR B Y AMPLIFIER 499 500 R1315 The lay out of thls block dlagram follows the lay out of the clrcult dlagram as closely as posslble Wtth the aid of the numbers of the valves unlts etc stated above the blocks the relevant sectlon of the ctrcult dl...

Page 5: ... 32 MHz R1126 u 578 lDENTIF T SkHz u s62 u536 v5L7 TD 5 0 R 1055 5 5 MHZ R 2o A 1338 2b 6 tlt 1o Q n37 1b 1336 R ao o1Z rL 4b Or rs 5o Sr5rs sb o tlrc 8o Or r sb orlre 6o Q t5rt t v 1 330 o o 3 5 MHz e 33 1 MH z Oo SK9 SK8 sl 10 G2 Blr R 1299 R1307 s 598 R 1303 R1298 R1306 cs27065 KONVERG Fig 3 ...

Page 6: ...Y r03 I 72 l R1258 R909 25 8 L1L PD 5OO s 598 G2 8119 B 419 s6o4 R1299 R1307 R 1215 HOR SYNC BALANCE B 41 AlBA11 2 R 1207 R1212 Fig 3 ...

Page 7: ...en Wlth lmobs 6a and 6b Adjust so that the dlstance between the vertlcal llne palrs red gleen ls equal over the entlre plcture wldth ln the mlddle of the screen Cary out red and green statlc oonvergence see polnt 7a Wlth lmobs 7a 7b and 7c Adjust so that the central horlzontal blue llne and the correspondlng horlzontal yellow Ilne are parallel over the entlre plchrre wldth Wlth lorobs 8a and 8b Ad...

Page 8: ...tern from a transmltter or a generator and vary the brtghtness from hlgh to low wlth the brlghtness control Lr so dolng the grey hue should not change Correct any devlatlons at a low level of brlghtness by means of larobs G R and B Rl 29 8 R130 2 and R130 6 25 Supplv Voltage Connect a voltmeter between the collector of TS421 and chassis Adjust R909 so that the meter readlng ls 24 6 V Vertlcal tlme...

Page 9: ...est polnt M2 and chassls ff to chassls Connect a valve voltmeter posltlon 10 V d c negatlve to polnt 1 of U554 test polnt ttlU f z9rr and adjust core I in r of U554 for mfurlmum deflectlon Checklng the IF bandpass curve Set the band swltch to posltlon UHF and apply a wobbu lator slgnal of 36 MHz sweep 10 MHz to the IF lnjectlon polnt on the IHF channel selector Apply a voltage of 5 5 V between jun...

Page 10: ...4a The dela Ilne TD570 wlth PM 5507 Apply the ralnbow slgnal from the PI 5507 and adjust the recelver to normal settlng Connect the rrbeam Bil lnput of a double beam oscllloscope to junctlon Rll04 U575 test polnt I Ml9 and adjust the horlzontal tlme base so that three perlods are dlsplayed see Flgs lOa and 10b F ig 10o 2 F is 11 F i9 12 When Flg 10b ls obtalned adjust R1103 so that Flg 10a arlses ...

Page 11: ...ch to rtcolour Turn the vldeo control of the PM 5507 to maxlmum Connect an oscllloscope to polnt 12 of 8419 B Y stgnal and adjust rrolr of U577 to 150 V eak to peak value By means of the saturatlon control decrease thls value to half 75 V then by adjusttng oil of U577 lncrease lt agaln to 150 V Next adjust ln turn the contrast brlghtness and satu ratlon controls for a normal plcture Wlth the vertl...

Page 12: ...pos 2 1 1822 290 80186 pos 1 L822 66 10184 PRINT 8 x2 X5 Y6 X1 r X3 lF Y5 TTV 2O60 A ...

Page 13: ... tTl1 I___l _ __ tgt rll IAt r rAis t l TTV 2 59 ...

Page 14: ...N ttg nz 1 w K ...

Page 15: ...B TS GR PRINT 1 m o PRINT 3 ...

Page 16: ...NT 3 1307 l2 l8 12 r9 t31l 1223 r310 1292 122L 1222 1220 1228 r30 3 962 1301 122 r300 1297 r295 1215 1299 861 864 865 598 5l L R c S GR4g1 GR490 8408 GR 81 GR461 GR468 GR 62 GR49 GR495 GR45 GR 63 GR 66 B TS G T 597 u587 s528 5604 s 529 S T U 101 1 911 898 899 901 896 895 897 9 t6 892 891 890 900 903 904 800 1099 R 1165 1163 1164116 117011751162 1171 11721113118211791176 1178 1 181 1192 11851195 11...

Page 17: ... _ BLlL PRINT L t 1 4r i u L R8etl 56 58 60 0 l ...

Page 18: ...I I l1fu t ri l PRll T ...

Page 19: ...b11 I I I I L_ _ b5 b6 b7 b10 b8 TT V 2469 ...

Page 20: ...5 llv R 121 TS431 8C 148C x 997 R 998 a t50K Rt16 R rt5 76 7 68v GR 9 t BAX15 c 761 I Rlrsl I I I I I I I t r Y TS4 53 BC 147 rzo t u 66 J c7 A JE ri s 828 lo lax c 167 A 00 A C D C f o 12sw o sw llfi il row 0 25w lUfi l lw 2 2Mn 2 2M5 i 2w f s sw i33fi F oov soov F socv fiF soov 1r11 roov 3 rooov SUBJECI TO MODIFICATIONS 5 5 10 5o o 5Yo 1C 5 ln o tv d 5 t0 5a o c609c c509d 2K2 2K2 GR 60 t xBY 127...

Page 21: ... l txo t l loo ocl r t H i t u557 _ _l 1s6 2s VTl i tri L HOR SY NC c778 Ril53 a 820 VERT SY NC c 832 oi 270 x R l 5r R 1 5i VERT OSCILLATOR c eos I9 F t0K L T c 800 t00 K c 788 t00 81 11 PL 504 6 ft f c 9r I 3tl J I I I I c776 a lt K il tl ll ll ll L I 27 R 18 I t__ R 0 5V 127 1 c 793 aK7 I Y l Rl 55 20K L 1i _T uo V ERT OUT PUT _t I I R 125 c 8 0 o 22K c 8r 5 8K2 R 1 250 811 a 3K c t t J c838 t ...

Page 22: ... 72 1il f ruu oAgr I I Y iii yya d 4 _ 32 b 66 D lla Itt r63 trt llf iLi fl R 59 Ir 9 J 1l l2v 5 8v 2 tv 840 l 1Pt802 R945 tiA 5 8v 481 BA 1 8 TSt27 R o 8C 1s9 c556 e F 220 c 659 EF t80 R 9 9 s 5 1 R 934 6V 1 R 917 x 9C i48C R96f K Z4V GR470 r R 941 X 957 R 953 E H T HOR OUTPUT l f ll hran T c 800 100 K x 12 00 c aoo IA F t0K L BL12 PY 5OO 8411 PL 504 t tt GR 95 BAX16 7 80 A K2 L 170 c 856 b6 5K5 ...

Page 23: ...92 697 702 706 721 7t1 t23 705 CHROMINANCE CHROM A G C ili s F I I ri ll I l tx ri ti ll l 1 ilil 0 18 PAL SWITCH PAL IDENTIFICATION Mj 1 47 Jl lL Lt T L J I 10 6 30 32 33 36 38 19 40 1 60 61 6 80 81 1088 1092 1097 1098 1095 1106 tl0 1102 1101 11001099 1030 1075 1076 1081 1090 1082 1033 r0r3 1014 1015 r08 1093 1089 1096 l09l 1023 1103 fizL 1025 1026 1029 1031 110 1036 1035 ...

Page 24: ...i e i t ll r f r i r 1n I 7 I T mn i o l i a ro i r jt v I 840 P R Y G Y zo i jlfi td__ I i ffinlo i J i J i i j i I I i i r I i ic i i r I l n 7 i NF i o i i n i i i ix I l l ii L l I i I I I I __A ssirn 15 I D J 2 tI I i lt t tl i i li ii rrai I ilio NFn i a I I i i i B Y ETH tflJtIL L Eo sl GR 523 BZY88 C7vs Ctt 1076 1081 1090 1082 1033 1019 1038 1039 1040 1046 1050 104 8 1054 1 0 5 121 1122 11...

Page 25: ...L _ _ iil i 2 2 lR i r22 l ei in il p I i 1 B 04t PC F 2oo l I I I I lc I I I I e I L CO N VERGENCE c 8 7 220 K u593 k BEAM CURRENT 1112 1116 1064 1058 1073 10 L 1077 119 l 11 1058 1060 1 120 1121 1215 1218 1219 1291 1222 1220 1300 1303 1330 1333 1329 1331 1338 131 1 13 5 13 1332 1296 1299 r30 1306 1310 1311 27 28 26 TTV 2 59 ...

Page 26: ... R1019 120 kCI R1026 470 A R1043 470 CI R10 50 2K2A R10 55 220 0 R1060 2k2 0 R1103 470 0 R1111 10 k9 R1113 10 kS R1115 10 l st R1125 22 ldr R112 6 10 k0 P Lt27 8K2A R1130 12 0 R1131 68 A R1135 82 A R1139 82 0 R1162 22 W RLl 79 10 kQ R1197 0 51 0 R1199 1 0 R1203 470 kCI R1206 V D R R120 7 100 ka R1210 V D R RL2L2 47 T SI R1215 3k90 R1258 1 MA R1266 1 MA RL273 1 kO RL274 220 CI RL279 V D R R1280 1 M...

Page 27: ...L24 204L7 4822 L24 20403 4822 L24 4009L 4822 r24 20428 4822 L24 20408 4822 L24 2034L 4822 L24 2034L 4822 I24 2037L Table protector Cam securlng the chassls Hinge of chassls Cam securlng the rear panel Push button of m alns swltch Dlal wlndow of push button unlt Clamplng spring of p c board of channel selector Mountlng plate of control panel Splndle of potentlometers volume etc Matrs swltch SKL Kno...

Page 28: ...8410 end protectlon of PL509 c General Modifted Controls on gZ panel Control 92 fine tuniry wae 4822 413 3044 hes become 4822 413 3043 d General Modtfted Blue and Green AdJuetment Added R1312 8 2 kQ L 4 W betweenpoint 2 of the picturetube and Junctlon R1215 Vl e General Modlfied R1209 hae beer replaced by aafety regletor 22 kf 4822 LLL Reason Protection agair t picture tube flashover f General Mod...

Page 29: ...BK L1 B 1 0 8Y127 R 1197 R 1199 21 a I Fig 1 F5 c663 A 1c662 R969 R 961 3 R 967 R 971 25 R 1110 ZS Rrlog c3 Rl3Bo PL 509 p1509 R1202 Y hf o y o t c9299 R1109 Fi 9 2 B3 13A ...

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