Service Manual
Contents
1.2. PULSE 24 o PTMPMSS29Y6FM S B 5V gt P903 oz 0515 522522522422262 52 5225 50022236222220025 s ssusssssss MAIN BOARD OF Z sapay i i a e lt x 1901 TDA6107AJF De 5 o TDA8946J gt lt i i 5 5 5 REMOTE 5 Mute R in R out 1 1 a gt a IN2 MODE SVR IN2 OUT2 Gnd OUT2 1 m a 2 gt m 2 2 lt M oo 8 2 D o D cu BOUT gt 5158131 8787876 V Y vj Y u lt 1 28 2 e GOUT gt 1K CC X 3 lt R660 383 x R913 gt AV 21 C603 C661 100V 47K ol oly A ROUT gt 50V R602 t lt OUT L R a 9 ss ls e R914 0 22u 100K 0 22u M C665 R661 SL Y Qt gt e 4700p T 12K 1 Sar 22185 a gt gt R 0503 6739 8 93 5 1 7 amp 311 2 2 de u O 662 100V C667 R662 ela 5 9 Le FBC R901 0 22u M 4700p 12k 1 s 353 2 ls c901 560 su Ed 3 S el T eta o 57 AN 5 d 5 5 83 R997 T lt 1S B_5V 4 A E SSS Leda T d Z deg 7 VERI asset 8854 3 3 gt gt gt 2 3 E FOCUS ees 12 45V 5 1 5529 6 4 7 5927 099
3. 20409021 2 Service Manual Colour Television TX 29PM1D TX 29PM1F TX 29PM1P CP 521F Chassis SPECIFICATIONS Power Source 220 240V a c 50Hz AV2 IN Video 21 pin 1V 7562 Audio 21 pin 500mV rms 10k 2 Power Consump tion 73W S Video IN Y 1V 75 2 21 pin C 0 3V 75 Stand by Power Cons um pti on 1 5W AV2 OUT Video 21 pin 1V 75 6 Aerial Impedance 750 unbalanced Coaxial Type Audio 21 pin 500 rms 1k 2 Receiving System PAL I B G D K PAL 525 60 AV 3 FRONT Audio 2 500mV rms 10 02 SECAM B G D K L L Video RCAx1 1V p p 7552 M NTSC AV only NTSC AV only High Voltage 28 5kV 1kV Receiving Channels Picture Tube A68EPD10X22 68cm VHF E2 E12 H1 H2 ITALY A H ITALY VHF R1 R2 Audio Output 2x5W RMS 2x10W MPO R3 R5 VHF R6 R12 89 impedance UHF E21 E69 CATV S01 S05 51 510 M1 M10 511 820 U1 U10 521 541 HYPERBAND Headphones Accessori es 862 Impedance Interm ediate Frequency supp lied Remote Control Video Audio 2 x R6 UM3 Batteries Video 38 9MHz 33 9MHz Sound 33 4MHz B G 33 16MHz A2 Dimensions 33 05MHz NICAM B G D K L Height 585mm 32 4MHz D K 32 66MHz CZ STEREO Width 781mm 40 4MHz 39 75MHz L NICAM Depth 490mm Colour 34 47MHz PAL Net weight 41 Okg 34 5MHz 34 65MHz SECAM 38 3MHz 38 15MHz SECAM L Terminals AV1 IN Video 21 pin 1V
4. 85 jou d K3 b 2 450 eer mum 86 8559 AA 2K2 7 63V 50V GND C222 100000 10 siFAcc 82 AGC ADJ gt pow C543 2 20 SC2 CIN VIDEO C IN SW704 SW703 54702 5 701 SW700 9 PLLIF DA15 STR F ON TV AV KEYB gt R514 ioo ad 75 6 TERRA_CVBS 4 8 GND2 Bay P 7 GND C512 100n y 90 C539 Bn3 My 50V S VIDEO OUT 5 3V3 gt hay 7 0550 fov 1 502 Y VIN lt VIDEO Y _IN MUTE lt 6 2 C541 1000 jx vi DAS SER PLUG 2 2 T9 SAW S W lt NEPRE 5 scori 22 R557 100 C538 SECA RO REN Y N ne 2 gt l c3 C513 63V 4 scout 93 R556 100 C537 2 2u DENT 220 94 536 Veron R553 1 10K 2 semi r R554 C1_LRIN 2 gt 2 scii 98 6535 28552 A RCA_LRIN lt gt 1 3 SSIF REFIN AVL 96 C534 8 i 2 2u m 1824 o 1820 gt n 78050 0 17805 a d ard E 2 5 a o t lt a lt a grau b 5 s le 5 z 2 8 8 5 E ME a RECO ibe 7 950 240mA FACEDOWN PINNING 8 20 45V TR a e sir 855 8551 0823 R842 C862 R850 11 0865 Lc582 WE ll E Z 2 8 82k R824 02 2W 25V 2W S B_5V
5. e lo 4 9 57512 Se 8 8 2 L 1000 4 7 100 z 00u 5 5 5 Ss gt 2 sS 1402 56 56 1822 7 d 2 lo C518 100 EE 9 2 Sos DA OX TLN 3062A 0 48W 2 lt 2I 35 gt 15 7 7 3 3 gt 5 C412 KIA78ROBAPI S B_3V3 L gt z EN i8 z 25 gt o e e e 0517 Te 88 52 1849376 T6V 1000 5 82 ng 3 3u E id i 0 duh 9 0813 918 0521 C408 200 1401 lt I DECDIG SA1980Y 5 5 7 144148 5 gt 0 36u M TRL 400D 59 pe o gt o 5 2 amp 5 m 25V RUS gt 8V 84 gt 1V8_2 1000 z 5 2 531 Ne 1 7402 1302 2001 a NE 4 lt C431 C430 I gt IV8_1 58 v 47000 Ar er wt gt 412V 3 23 p 7 D860 0269 pe RGP30J k7op R DECDIG A J 0820 aac 1 4W e BYW76 RB03 T a gt x lt x fa PE 06 21 2830 LO MAIN aos Ua sez 1N4937G 1N4937G n E gt xl R401 100 GA 2 26 55S e 218 T 2200 add 8 9 C820 yw gt 9 25009071 i 2 2 2 1 l om 2502578 Q5 834 0812 132V 123V STB 5 12 7 220 C831 iz 440 58 Res ve KTC3203Y 20 33u R821 R827 a R403 D404 400V
6. AV TERMINAL AV TERMINAL JACK PIN BOARD SOCKET CRT SWITCH SWITCH SWITCH SWITCH SWITCH SWITCH RELAY Cct Ref Parts Number Description DIFFERENCES FOR MODEL TX 29PM1D EXPLODED VIEW 16 DMP4502500 INSTRUCTION BOOKS TQBOE0051A1M TQBOE0051C1M TQBOE0051D1M 5 1501 TDA21HD01 W 1502 X24C29PM1D S PLATE GERMAN ITALIAN FRENCH IC MICOM FLASH IC MEMORY DIFFERENCES FOR MODEL TX 29PM1F EXPLODED VIEW 16 DMP4502600 INSTRUCTION BOOKS TQBOE0052A1M 0 0052 1 0 005201 0 0052 1 TQBOE0052F1M 0 005261 0 0052 1 TQBOE0052J1M TQBOE0052K1M I C s I501 TDA21HD01 W I502 X24C29PM1F S PLATE GERMAN DUTCH FRENCH SPANISH SWEDISH NORWEGIAN FINNISH PORTUGUESE DANISH IC MICOM FLASH IC MEMORY DIFFERENCES FOR MODEL TX 29PM1P EXPLODED VIEW 16 DMP4502700 INSTRUCTION BOOKS TQB0E0053M1M TQB0E0053N1M TQB0E0053P1M TQB0E0053Q1M TQB0E0053R1M TQB0E0053U1M TQBOE0053W1M I C s 1501 TDA21HD01 E 1502 X24C29PM1P S PLATE BULGARIAN ROMANIAN POLISH HUNGARIAN CZECH ENGLISH SLOVAKIAN IC MICOM FLASH IC MEMORY 14 SCHEMATIC DIAGRAMS FOR MODELS TX 29PM1D TX 29PM1F TX 29PM1P CP 521F CHASSIS IMPORTANT SAFETY NOTICE Components identified by mark have special characteristics important for safety When replacing any of these components use only manufacturers specified parts NOTE 1 RESIS
7. 0813 25 1980 TRANSISTOR R115 ERD25TJ101 CARBON 0 25W 5 1000 2909343 TRANSISTOR R120 ERD25TJ101 CARBON 0 25W 5 1000 0815 2519801 TRANSISTOR R131 ERD25TJ472 CARBON 0 25W 5 4K7Q Q816 25905343Y TRANSISTOR R310 ERD25TJ471 CARBON 0 25W 5 4700 TRANSFORMERS R311 ERD25TJ471 CARBON 0 25W 5 4700 T401 TD 19A1 TRANSFORMER DRIVE R331 ERDS1TJ201 CARBON 05W 5 2000 1801 50 4242 7 TRANSFORMER 5 R340 ERD25TJ473 CARBON 0 25W 5 47KQ COILS R350 RN AZ2201F METAL 017W 2K2Q d R351 RN AZ2201F METAL 017W 2 2 mom s R370 ERD25TJ159 CARBON 0 25W 5 150 De COSS R394 ERD25TJ272 CARBON 0 258W 5 2K7Q o R395 ERD25TJ394 CARBON 0 25W 5 390KQ D EOE sas R396 ERD25TJ103 CARBON 0 25W 5 ifs R397 ERD25TJ823 CARBON 0 25W 5 que 522 R398 RS02Y129JS METAL 4R20 ids R399 RS02Y120JS METAL ow 12 Q job SENE BER R401 ERD25TJ272 CARBON 0 251 5 2K7Q oe dde R402 ERD25TJ220 CARBON 0 25 5 220 s SAKN COL R403 ERD25TJ102 CARBON 0 25W 5 1KQ R404 25 109 CARBON 0 25 5 10 on oe Fes dun R405 ERD25TJ102 CARBON 0 25W 5 1514 5 2100 04 PEAKING COIL pave ar TJS METAL 2W 400 p R407 ERD25TJ182 CARBON 0 25W 5 1 NET EIE 6415 RNO2B112JS METAL KQ EE R420 ERDS1TJ103 CARBON 05W 5 s 2 R422
8. C563 ECEA1H100 ELECT 50V 564 CBZF1H104Z CERAMIC 50V 100nF C565 CBZF1H104Z CERAMIC 50V 100nF C566 CBZF1H104Z CERAMIC 50V 100nF C567 ECEA1H100 ELECT 50V 568 CBXF1H104Z CERAMIC 50V 0 1uF C569 ECEA1ES470 ELECT 25V 47uF C574 CMXL1J224J FILM 63V 0 221 C575 ECCR1H102J CERAMIC 50V 1nF C576 CMXL1J224J FILM 63V 0 221 577 1 5101 ELECT 16V 578 CBZF1H104Z CERAMIC 50V 100nF C579 ECCR1H102J CERAMIC 50V 1nF C581 CMXL1J224J FILM 63V 0 221 582 1 5101 ELECT 16V 100 587 ECCR1H102J CERAMIC 50V 1nF C589 ECKC1H472J CERAMIC 50V 4 7nF C590 CBZF1H104Z CERAMIC 50V 100nF C591 CMXL1J224J FILM 63V 0 221 592 ECKC1H103J CERAMIC 50V 10nF C602 ECEA1ES470 ELECT 25V 471 C603 ECEA1H228 ELECT 50V 0 22uF C604 ECEA1ES102 ELECT 25V 1000UF C608 ECCR1H222J CERAMIC 50V 2 2nF C609 ECCR1H222J CERAMIC 50V 2 2nF 13 Parts Number Description C625 ECEA1H479 ELECT 50V 4 7uF C660 ECEA1H100 ELECT 50V 661 2 224 FILM 100V 0 221 662 2 224 FILM 100V 0 221 665 ECCR1H472J CERAMIC 50V 4 7nF C666 CBXF1H104Z CERAMIC 50V 0 1uF 667 ECCR1H472J CERAMIC 50V 4 7nF C668 CMXM2A224J FILM 100V 0 221 669 2 224 FILM 100V 0 221 690 1 4 79 ELECT 50V 4 7uF C691 ECEA1H479 ELECT 50V 4 7uF C770 ECEA1CS101 ELECT 16V C801 CL1UC3474M CERAMIC 250V 470nF C803 ECCR3A472J CERAMIC 1kV 4 7nF C804 4 72 CERAMIC 1kV 4
9. VIDEO OUT 68M E D707 R513 100 23 SCIV1 1 7 28C5343Y 72 spor 5 T gt C554 470n M 8575 OK GND VIDEO IN 9 ST BY R512 100 22 AUDIo2INR 72 d H 8569 VIDEO_OUT D COIL lt 76 555 63V 470n M Sew R568 1 10K RAO VIDEO_IN Q SCL A e 8527 100 21 AUDIO2INL 1 H RCA_LRIN 6505 1K pave GND_PLUG R508 A 3K3 OPES m MEL 2SA1980Y 77 25 5 02 SDA lt R507 3K3 25V 78 C558 100 RA29 AA 50 P 63v 220n M 1 00 lt IRCA_Y VIN 5 8 5064 A gt 10 40525 E et 552 63 7000 T3 10K 100 198 SC2 LRO gt 15 AV2 18 SCIR2 Z5V6 AUDIO_OUT_R R532 gt 1K C549 63V 872 A E 10K SC2 LRIN t AUDIO_IN_R FOr P601 8 8 3V3 R529 A 100 7 1501 5 2 80 2285 lt 19 2 LRIN TO ES AUDIO OUT L R589 NC 14 D AUDIO 81 R560 2 2 GND_ 0514 85 16 scov2 Z5V6 40 RESET 1994400 TDA12021H1 N1 D01 GND BLUE R503 IK 82 46 i00 TST Sou AUDIO_IN_L 5 AR383 AA E PN DAI 117762 150K C592 83 50 1514 4 4 NC E 5 68M S SW gt 2 10n R510 np 10K AGC2SIF cat 6220 lt 5V 57502 R724 R723 R722 R72 s 1513 4 7uH RAI7 GND 470 330 220 180 gt S SW2 gt R511 AA 10K 13 VBAUDIOSW m lt I 8V 10K 50 N CA5 a gt 1V8_1 gt
10. 50V 0 1uF C519 CMXL1J224J FILM 63V 0 221 Cct Ref Parts Number Description C520 ECEA1H100 ELECT 50V 521 ECCR1H222J CERAMIC 50V 2 2nF C522 CBXF1H104Z CERAMIC 50V 0 1uF C523 ECCR1H102J CERAMIC 50V 1nF C524 ECQB1682JFB FILM 100V 6 8nF C525 ECEA1H479 ELECT 50V 4 7uF C526 CMXL1J224J FILM 63V 0 221 527 ECEA1H100 ELECT 50V 528 ECCR1H223J CERAMIC 50V 22nF C529 ECQV1J154JM3 FILM 63V 150nF C530 ECKC1H101J CERAMIC 50V 100pF C531 ECKC1H103J CERAMIC 50V 10nF C532 ECCR1H102J CERAMIC 50V 1nF C533 ECCR1H102J CERAMIC 50V 1nF C534 ECEA1H229 ELECT 50V 2 2UF C535 ECQV1J474JMW FILM 63V 470nF C536 ECQV1J474JMW FILM 63V 470 C537 ECEA1H229 ELECT 50V 2 2UF C538 ECEA1H229 ELECT 50V 2 2UF C539 CMXM2A332J FILM 100V 3 3nF C540 CMXL1J104J MYLAR 63V 100nF C541 CBZF1H104Z CERAMIC 50V 100nF C542 ECEA1H100 ELECT 50V 543 ECEA1H229 ELECT 50V 2 2UF C544 CBZF1H104Z CERAMIC 50V 100nF C545 ECEA1H229 ELECT 50V 2 2UF C546 CBZF1H104Z CERAMIC 50V 100nF C547 ECEA1H100 ELECT 50V 548 ECEA1H100 ELECT 50V 549 ECQV1J474JMW FILM 63V 470 550 ECKC1H103J CERAMIC 50V 10nF C551 CBZF1H104Z CERAMIC 50V 100nF C552 ECQV1J474JMW FILM 63V 470 C553 ECQV1J474JMW FILM 63V 470 554 ECQV1J474JMW FILM 63V 470 555 ECCR1H102J CERAMIC 50V 1nF C556 ECCR1H102J CERAMIC 50V 1nF C557 CBZF1H104Z CERAMIC 50V 100nF C558 CBXF1H104Z CERAMIC 50V 0 1uF C560 ECEA1H229 ELECT 50V 2 2UF C561 ECEA1H229 ELECT 50V 2 2UF
11. 7562 Audio 21 pin 500mV rms 10k 2 RGB 21 pin 0 7V 7562 Specifications are subject to change without notice OUT Video 21 pin 1V p p 75Q Weights and dimensions shown are approximate Audio 21 pin 500mV rms 1k 2 CONTENTS 2 VOLTAGE CHECKAND OPTION BY ES br Sessa stuba nuns 4 WAVEFORM PATTERN ABB 5 ALIGNMENT SE THUNG U i L En EE 6 rel ee eee 7 FARE O LOCATION s 9 CEMENT FARTS El I M 10 eg zuuwgesmniclcum T 15 sepe I0 Sm aqa 17 SAFETY PRECAUTION GENERAL GUIDE LINES 1 advisable to insert an isolation transformer in the 4 Check each exposed metallic part and check the a c supply before servicing a hot chassis voltage at each point 2 When servicing observe the original lead dress in the 5 Reverse the a c plug at the outlet and repeat each of high voltage circuits If a short circuit is found replace all parts that have been overheated or dam
12. C801 GND OCP BI R115 AC 250V MAX C812 25c5343Y NC R830 100 x RW R340 zul 0 47u 835 AC RON u 100 27 817 1 106 XT Too 1805 6120 1 2W 3 3K aw I O R806 820p 1N4937G 4700p 47K 16 50 1000 2337 1000p SW801 01 1 47u ne 7 1 3 53 225 4 4 250 0 27 2W R807 CAUTION LIVE MAINS 8M2 CC 7 7 7 1CORD POWER 1 4W 220 TRAIN S Q120 D411 0401 0414 0402 0450 0501 0501 4 gt 0601 amp 4 Q50 D503 Q50 D520 D521 D522 CAUTION LIVE MAINS B4 D2 D2 83 D2 Da1 0523 3 0602 03 ES DAIS DA20 05 par 05 De D5 EA 04 2 E1 B3 A2 A3 A2 A2 A2 A2 A2 A2 A3 A3 A3 E3 E3 E3 D710 79 e 1 D3 C3 Q80 D801 Q809 D802 C6 D2 N E B E Q810 4 D803 0812 ce 0804 0813 D2 0805 B4 Q815 D807 05 1502 D1 or sos p ps ees 85 cs sx 76 O O lt 4 5 4 1 02 02 3 B3 D2 2 D3 D3 E5 E4 D5 D5 D5 D5 E4 D4 D5 D4 17
13. MUTE button on remote control and at the same time press the V button on the customer controls at the front of the TV this will place the TV set into Service Mode Press A V buttons to step up down through the functions Press buttons to alter the function values To exit Service Mode press MENU button Setting in indication Settings Special features Note All settings are approximate 1 37 2 SHIPPING 20 67 3 VERT SIZE 38 4 VERT CENT 51 5 5 30 6 EW TRAPEZ 22 7 V SLOPE 2 8 V LINEAR 42 9 HOR PARAL 35 10 CORNER B 47 11 CORNER 45 12 HOR WIDTH 50 13 PARABOLA 23 14 AVL 00 15 2 01001111 4 16 OPTION 10111100 BC 17 G2 SCREEN OBO 18 AGC LEVEL 21 19 GRN BIAS 32 20 RED BIAS 32 21 BLUE GAIN 32 22 GRN GAIN 32 23 RED GAIN 32 199525 LYVOS LAV lt lt 8 o 004 NI 61 110 N 4 313 4 OlQnv 09 LOS 66 1 19 6 LOS 6 JN 205 OZ 205 08 225 64 A 195 vL AL 110 125 98 T 110 125 6 AL 110 225 18 T 110 2425 9 110 205 99 A A N 695 0 149 4055390 03GdIA i 97 TN VOU pia LOSI 89 110 4 69 1001 OOLN YINNL dYVOd NIV 42018 Olanv 03434 LO s 0180 v 910230 46080 1903 SNIVA 3
14. O R913 ERDS1TJ102 CARBON 0 5W 5 1K Q R914 ERDS1TJ102 CARBON 0 5W 5 1K Q R915 ERDS1TJ102 CARBON 0 5W 5 1K Q R920 RS01Y229J FILM IW 5 2R2 Q R921 ERD25TJ221 CARBON 0 25W 5 2200 R922 ERD25TJ221 CARBON 0 25W 5 2200 R923 ERD25TJ221 CARBON 0 25W 5 2200 R996 ERDS1TJ105 CARBON 0 5W 5 1M R997 ERDS1TJ102 CARBON 0 5W 5 1K Q 2 ERD25TJ101 CARBON 0 25W 5 1000 ERD25TJ101 CARBON 0 25W 5 100 0 4 ERD25TJ101 CARBON 0 25W 5 1000 5 ERD25TJ103 CARBON 0 25W 5 10K 6 ERD25TJ750 CARBON 0 25W 5 750 7 ERD25TJ332 CARBON 0 25W 5 3K3 O RAO08 ERD25TJ750 CARBON 0 25W 5 750 9 ERD25TJ750 CARBON 0 25W 5 750 12 Ref Parts Number Description RA10 ERD25TJ680 CARBON 0 25W 5 680 1 ERD25TJ750 CARBON 0 25W 5 750 RA12 ERD25TJ102 CARBON 0 25W 5 1K Q RA13 ERD25TJ222 CARBON 0 25W 5 2K2 Q RA14 ERD25TJ220 CARBON 0 25W 5 220 RA15 ERD25TJ750 CARBON 0 25W 5 750 RA16 ERD25TJ750 CARBON 0 25W 5 750 RA17 ERD25TJ103 CARBON 0 25W 5 10K RA18 ERD25TJ332 CARBON 0 25W 5 3K3 RA19 ERD25TJ750 CARBON 0 25W 5 750 23 ERD25TJ220 CARBON 0 25W 5 220 24 ERD25TJ222 CARBON 0 25W 5 2K2 Q RA25 ERD25TJ102 CARBON 0 25W 5 1K Q 29 ERD25TJ101 CARBON 0 25W 5 100 O RA32 ERD25TJ680 CARBON 0 25W 5 680 RA35 ERD25TJ750 CARBON 0 25W 5 750 CAPACITORS C102 ECEA1ES470 ELECT 25V 47uF C103 ECCR1H102J CERAMIC 50V 1nF C104 ECCR1H102J CERAMIC 50V 1nF C106 ECEA1H220 ELECT 50V 22uF C107 ECKR1H470 CER
15. 19 ERD25TJ102 CARBON 0 25W 5 1K O R527 ERD25TJ101 CARBON 0 25W 5 100 O R528 ERD25TJ101 CARBON 0 25W 5 1000 R529 ERD25TJ101 CARBON 0 25W 5 100 O R530 ERD25TJ221 CARBON 0 25W 5 2200 R532 ERD25TJ102 CARBON 0 25W 5 1K QO R534 ERD25TJ472 CARBON 0 25W 5 4K7 R537 ERD25TJ123 CARBON 0 25W 5 12K Q R538 ERD25TJ101 CARBON 0 25W 5 100 O R539 ERD25TJ471 CARBON 0 25W 5 4700 540 ERD25TJ471 CARBON 0 25W 5 4700 R541 RN AZ3902F METAL 0 17W 39K O R542 ERD25TJ682 CARBON 0 25W 5 6K8 R543 ERD25TJ222 CARBON 0 25W 5 2K2 Q R544 ERD25TJ222 CARBON 0 25W 5 2K2 Q R545 ERD25TJ473 CARBON 0 25W 5 47K Q R546 ERD25TJ681 CARBON 0 25W 5 680 R547 ERD25TJ563 CARBON 0 25W 5 56K R551 ERD25TJ823 CARBON 0 25W 5 82K R552 ERD25TJ103 CARBON 0 25W 5 10K R553 ERD25TJ103 CARBON 0 25W 5 10K Q R554 ERD25TJ103 CARBON 0 25W 5 10K R555 ERD25TJ103 CARBON 0 25W 5 10K Q R556 ERD25TJ101 CARBON 0 25W 5 1000 557 ERD25TJ101 CARBON 0 25W 5 1000 R558 ERD25TJ391 CARBON 0 25W 5 390 R559 ERD25TJ222 CARBON 0 25W 5 2K2 Q R560 ERD25TJ222 CARBON 0 25W 5 2K2 Q R561 ERD25TJ101 CARBON 0 25W 5 100 O R562 ERD25TJ101 CARBON 0 25W 5 100 O R563 ERD25TJ101 CARBON 0 25W 5 1000 R564 ERD25TJ101 CARBON 0 25W 5 1000 R565 ERD25TJ154 CARBON 0 25bW 5 150 R566 ERD25TJ103 CARBON 0 25W 5 10K Q R567 ERD25TJ103 CARBON 0 25W 5 10K R568 ERD25TJ103 CARBON 0 25W 5 10K Q R569 ERD25TJ103 CARBON 0 25W 5 10K R571 ERD25TJ102 CARBON 0 25W 5 1K QO R572 ERD25TJ103
16. 24 ERD25TJ471 CARBON 0 25W 5 4700 R801 DDB7ROM290 POSISTOR 0 R803 RWO02Y508FS WOUND 2W R50 R804 ERD25TJ220 CARBON 0 25W 5 220 R805 ERDS1TJ104 CARBON 0 5W 5 100 R806 RS02Y278JS METAL 2W R27 Q R807 ERD25TJ221 CARBON 0 25W 5 2200 R808 ERD25TJ182 CARBON 0 25W 5 1K8 O R809 ERD25TJ102 CARBON 0 25W 5 1K O R810 ERD25TJ220 CARBON 0 25W 5 220 R811 ERDS1TJ825 CARBON 0 5W 5 8M2 R812 ERD25TJ473 CARBON 0 25W 5 47K Q R813 ERD25TJ473 CARBON 0 25W 5 47K Q R814 ERD25TJ472 CARBON 0 25W 5 4K7 R815 ERD25TJ472 CARBON 0 25W 5 4 7 R817 ERD25TJ473 CARBON 0 25W 5 47K Q R818 ERD25TJ683 CARBON 0 25W 5 68K O R819 RX07C339JF SOLID 7W 3R3 R820 ERD25TJ363 CARBON 0 25W 5 36K R821 ERD25TJ563 CARBON 0 25W 5 56K R822 RNO2B510JS METAL 2W 510 R823 ERD25TJ102 CARBON 0 25W 5 1K O R824 RN02B510JS METAL 2W 510 R827 ERD25TJ103 CARBON 0 25W 5 10K R828 ERDS2TJ752 CARBON 0 25W 5 7K5 R829 ERD25TJ103 CARBON 0 25W 5 10K Q R830 ERD25TJ101 CARBON 0 25W 5 100 O R831 ERD25TJ472 CARBON 0 25W 5 4 7 R832 ERD25TJ473 CARBON 0 25W 5 47K Q R833 ERDS1TJ105 CARBON 0 5W 5 1M Q R834 ERD25TJ470 CARBON 0 25W 5 470 R840 ERD25TJ472 CARBON 0 25W 5 4K7 R841 RS02Y479JS METAL 2W 4R7 Q R842 RS02Y240JS METAL 2W 240 R850 RS02Y479JS METAL 2W 4R7 Q R870 ERD25TJ102 CARBON 0 25W 5 1K O R901 ERD25TJ561 CARBON 0 25W 5 560 R910 ERD25TJ101 CARBON 0 25W 5 1000 R911 ERD25TJ101 CARBON 0 25W 5 100 O R912 ERD25TJ101 CARBON 0 25W 5 100
17. 252 yaw T B 47 56 10K lt 1 44 BYW76 0 022 M R370 gt 0 T 0807 R828 uns 0824 0826 1801 5 1013 AW Te 25 1 0 OHM Tuner 2094 0108 UVI316 AI 4 2 301 TDA8358J 061201 JL J US R399 2W Bs oo 1806 o Alce 1 4W DP130 29 5 V 12 M 1 E e R31 LT2A05G 5 1 a 2 5 218 090350 1790 28294 5 5 i R601 R804 a lt 128 R397 23 9 247 as l cs 1 ECPBD7ROM290 1 4W H T U oui 1 1 pon 83 22 R809 Y 50v VDRB gt gt cii 7 R395 100u 4 caot kv 3 gt 1 4W R810 100 BE C305 6320 390k I 7 700 1801 0807 0806 1 4W R120 807 0 047u M Qu 228 R398 100 o A xt elez STRW6754 M49376 1849376 22 ra oi EWD 4 2W 2 4700 R805 STIR R808 nr PS Rios C108 141 8 5 1 2 MAIN_VCC gt 40 LF801 V2W 3 10n v 2 122 1 100 47 163 55 LF 24A3 100K tL 5 gt 1 10u 25V 1000p ES el CONTRO gt 0808 AW k 1 7 pire c315 0408 Wis b Z6V8 1 47 E 48 S BLOCK 804 m 8529 Z 0120 ae NE 00 T RGP15J Video voltoge 1N4937G D 7 5 S 225 1 1010 756 2SC5343Y oe 5 lt zo u 0809 cats O D 2503437 250V t
18. 3805 YyOLV INGON YINYOISNVYL 30010 420 LOSI 109 ssnobaq 910930 5180 180 2 9 LOCI 031 8S 9090 901 62 85 0ZI usc lp A81 8 S 1 OOLN 01 WO3v3 COSI 055390 4 ONOIN MOSS320Md 0301A LOGI 8S 7090 1090 AS 85 060 050 AG 1n0 A LYVOS 2080 1080 AS 110 I LYVOS dAV 893 317114 MYS 106 2012 1017 9 indino 70091 1 08 AlddfS 7000 81 12 70 20 des nu 8 20208 10018 PARTS LOCATION NOTE The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List REPLACEMENT PARTS LIST Important Safety Notice Components Identified by mark have special characteristics important for safety When replacing any of these components use only manufacturers specified parts In case of ordering these spare parts please always add the complete Model Type number to your order CctRef Parts Number Description COMMON PARTS EXPLODED VIEW 1 4852089314 MASK FRONT 2 4852170214 COVER BACK 3 4852825211 DOOR 4 4854868711 BUTTON POWER 5 4855624800 MARK BRAND 6 4856017354 SCREW CRT FIX 7 4859724930 TUNER VARACTOR 8 4859810593 PCB MAIN 9 4859810593 PCB CRT 10 4859906210 POWER C
19. 7 0904 C965 SCREEN 4 x x 2KV S lt af of of F g i LT2A05G x 5 m5 MUTE 3265 CRT BOARD voltage 980 Qu 4000 T T 5 5V 1625 56K 2 2 2 401A T 25V 274 gt 1000u 7 R517 28518 JP1 lt 1002 100 EE 5 m SEX 2606 2605 For computer R304 AA KS si 2 SUE B gg LRO PETER AUDIO OUT R P701 B_3V3 gt 1K 5 5 E zz 6 SCACLRIN lt 728284 255 AUDIO_IN_R REMOTE gt 8505 100 5 8 ZEE 5 ANC i 2452607 DAO4 155 25 TE AUDIO_OUT_L L 5 d 56 R564 100 lr T 5 68M 25V6 GND_AUDIO 67 856 100 NC 5 68M 042 1 6 5 4 2 5 7 8 30 AUDOUTHPL 5 5601 224 gt C2_LRO 048 AUDIO_IN_L 29 aupouTisr 68 R562 AA 100 R G B FB 1 e 7 BLUE_IN 91816181 1V8_1 0 gt 507 9 100 2 DAO1 0 06 CAO 100 RAO6 S SW1 875872828 lt 5 4 juH 28 aupourist 6 joo LO AUD OUT L R 2596 100 25 GND_GREEN e C509 C555 w 1 lt E GING SCL 220n M 1000p 27 c3 C550 10n 1SC2 CIN 5 5 GREEN_IN sass S n C551 100 9 10580 IB ERAT i RAOS a G SDA Y3 CVBS3 T lt 18 2 Y VIN 700 J 3G 100 DAOA ENO RED 50 gt 7 7 GND_DATA Speaker lt 3 C502 f RED IN 12W 8 OHM 4 Tu 0506 24 AUDIOSINL tev tH DAOS caos RAD4 RA09 FBIN1 2601 LL 2SC5343Y 4 2584 1000 74 C557 100n 470 501 2596 100p T 75 GND
20. 7nF C805 ECA2GM181B ELECT 400V 180 806 CCXR3A102K CERAMIC 1kV 1nF C807 ECEA1H109 ELECT 50V 1uF C809 ECKC1H101J CERAMIC 50V 100pF C810 ECEA1H220 ELECT 50V 22uF C811 CMXM2A473J MYLAR 100V 47nF C812 CH1BFE472M CERAMIC 400V 4 7nF C813 CEYF2E470V ELECT 250V 471 814 ECA2EM101 ELECT 250V 100 820 CCYR3D221K CERAMIC 2kV 220pF C823 ECEA1ES471 ELECT 25V 4TOUF C830 ECEA1H479 ELECT 50V 4 7uF C831 ECEA1H330 ELECT 50V C833 CCXB1H821K CERAMIC 50V 820pF C834 ECCR1H103J CERAMIC 50V 10nF C835 ECEA1ES470 ELECT 25V 47uF C840 ECEA1CS332 ELECT 16V 3300uF C844 ECEA1ES101 ELECT 25V 861 ECEA1ES102 ELECT 25V 1000UF C862 ECEA1ES101 ELECT 25V 100 C863 ECEA1CS101 ELECT 16V C866 ECKC3A471J CERAMIC 1KV 470pF C901 ECCR1H221J CERAMIC 50V 220pF C905 ECA2EM4R7B ELECT 250V 4 7uF C965 ECKC3D102J CERAMIC 2KV 1nF C968 CMXL2E104K MYLAR 250V 100nF C997 ECA2EM100B ELECT 250V 01 ECKC1H101J CERAMIC 50V 100pF CA02 ECKC1H101J CERAMIC 50V 100pF ECKC1H101J CERAMIC 50V 100pF 04 ECKC1H101J CERAMIC 50V 100pF 05 ECKC1H101J CERAMIC 50V 100pF 06 ECKC1H101J CERAMIC 50V 100pF CA10 ECCR1H102J CERAMIC 50V 1nF CA28 ECCR1H102J CERAMIC 50V 1nF TERMINALS AND LINKS JP01 4859102130 JPA1 4859200401 JPA2 4859200401 JPA3 4859108450 SCT1 4859303530 SWITCHES SW700 5550101290 SW701 5550101290 SW702 5550101290 SW703 5550101290 SW704 5550101290 SW801 5540101143 RELAYS Y801 55 0101003 HEADPHONE SOCKET
21. AMIC 50V 47pF C108 ECKR1H470 CERAMIC 50V 47pF C120 ECCR1H102J CERAMIC 50V 1nF C121 ECEA1H100 ELECT 50V 122 ECEA1H100 ELECT 50V 123 ECKC1H103J CERAMIC 50V 10nF C305 ECEA1ES221 ELECT 25V 2201 C313 CMXM2A104J MYLAR 100V 100nF C315 ECA2AHGA470 ELECT 100V 471 320 CBXF1H104Z CERAMIC 50V 0 1uF C350 CMXM2A683J FILM 100V 68nF C351 CMXM2A473J MYLAR 100V 47nF C370 ECCR1H473J CERAMIC 50V 47nF C401 ECEA1H101 ELECT 50V 100yF C402 CMYH3C752J FILM 1 6kV 7 404 CMYH3C622J MYLAR 1K6V 6200pF C408 ECWF2364JBB FILM 250V 360nF C412 ECEA2CS339 ELECT 160V 414 2 104 100V 100nF C415 ECA2EM4R7B ELECT 250V 4 7uF C418 ECCR1H102J CERAMIC 50V 1nF C420 ECCR2H222J CERAMIC 500V 2 2nF C421 ECCR1H473J CERAMIC 50V 47nF C430 CCYR3D681K CERAMIC 2kV 680pF C431 CMXB2G472J FILM 400V 4 7nF C440 ECQM4223JZB FILM 400V 22nF C499 CEYD1H689W ELECT 50V 6 8uF C501 ECEA1CS470 ELECT 16V 471 502 ECEA1CS470 ELECT 16V 47uF C503 ECCR1H102J CERAMIC 50V 1nF C504 ECCR1H102J CERAMIC 50V 1nF C505 CMXL1J224J FILM 63V 0 221 507 CMXL1J224J FILM 63V 0 221 508 ECEA1CS470 ELECT 16V 47uF C509 CMXL1J224J FILM 63V 0 221 510 ECEA1ES101 ELECT 25V 511 ECCR1H102J CERAMIC 50V 1nF C512 CBZF1H104Z CERAMIC 50V 100nF C513 CMXL1J224J FILM 63V 0 221 514 ECCR1H102J CERAMIC 50V 1nF C515 CMXL1J224J FILM 63V 0 221 516 CMXL1J224J FILM 63V 0 221 517 1 5101 ELECT 16V 518 CBXF1H104Z CERAMIC
22. CARBON 0 25W 5 10K Q R573 ERD25TJ103 CARBON 0 25W 5 10K R574 ERD25TJ103 CARBON 0 25W 5 10K R575 ERD25TJ103 CARBON 0 25W 5 10K R576 ERD25TJ102 CARBON 0 25W 5 1K QO R577 ERD25TJ102 CARBON 0 25W 5 1K R578 ERD25TJ102 CARBON 0 25W 5 1K R579 ERD25TJ101 CARBON 0 25W 5 100 O R580 ERD25TJ183 CARBON 0 25W 5 18K R581 ERD25TJ101 CARBON 0 25W 5 100 O R582 ERD25TJ101 CARBON 0 25W 5 100 O R583 ERD25TJ101 CARBON 0 25W 5 100 O R584 ERD25TJ101 CARBON 0 25W 5 100 O R585 ERD25TJ101 CARBON 0 25W 5 100 Q R586 ERD25TJ101 CARBON 0 25W 5 1000 R587 ERD25TJ101 CARBON 0 25W 5 1000 R588 ERD25TJ102 CARBON 0 25W 5 1K QO R589 ERD25TJ102 CARBON 0 25W 5 1K QO R590 ERD25TJ334 CARBON 0 25W 5 R598 ERD25TJ182 CARBON 0 25W 5 1K8 R599 ERD25TJ224 CARBON 0 25 5 220 0 R601 ERD25TJ152 CARBON 0 25W 5 1K5 R602 ERD25TJ104 CARBON 0 25W 5 100 R608 ERDS1TJ151 CARBON 0 5W 5 150 O R609 ERDS1TJ151 CARBON 0 5W 5 150 O R610 ERD25TJ103 CARBON 0 25W 5 10K R611 ERD25TJ563 CARBON 0 25W 5 56K R612 ERD25TJ563 CARBON 0 25W 5 56K Cct Ref Parts Number Description R650 ERD25TJ473 CARBON 0 25W 5 47K Q R660 ERD25TJ473 CARBON 0 25W 5 47K Q R661 RN AZ1202F METAL 0 17W 1 12K Q R662 RN AZ1202F METAL 0 17W 1 12K Q R700 ERDS1TJ332 CARBON 0 5W 5 3K3 O R720 ERD25TJ122 CARBON 0 25W 5 1K2 R721 ERD25TJ181J CARBON 0 25W 5 180 O R722 ERD25TJ221 CARBON 0 25W 5 2200 723 ERD25TJ331 CARBON 0 25W 5 330 O R7
23. E D997 LT2A05G DIODE DAO1 1N4148 DIODE 02 DTZX5V6B DIODE 0 1N4148 DIODE DAOA DTZX5V6B DIODE DAO6 DTZX5V6B DIODE 08 DTZX5V6B DIODE 0 09 DTZX5V6B DIODE DA10 DTZX5V6B DIODE DA11 DTZX5V6B DIODE DA13 DTZX5V6B DIODE DA14 DTZX5V6B DIODE DA15 DTZX5V6B DIODE DA20 DTZX5V6B DIODE DA21 DTZX5V6B DIODE DA22 DTZX5V6B DIODE 1805 DTZX33B DIODE ZENER 10 Cct Parts Number Description Cct Ref Parts Number Description TRANSISTORS 7611 5PEFST471Y FILTER EMI GA Sede vu dci 7612 5PEFST471Y FILTER EMI Q401 2SD2578 TRANSISTOR CRYSTALS 0402 2801207 TRANSISTOR 501 5XJ24R576E CRYSTAL QUARTZ 0501 2SC5343Y TRANSISTOR RESISTORS 0902 25819807 TRANSISTOR J7 ERD25TJ101 CARBON 0 25W 5 1000 4503 25 5343 TRANSISTOR J25 ERD25TJ101 CARBON 0 25W 5 1000 GATIBU 126 ERD25TJ101 CARBON 0 25W 5 1000 150 ERD25TJ101 CARBON 0 25W 5 1000 0908 TRANSISTOR J76 ERD25TJ202 CARBON 0 25W 5 99152 TRANS 183 ERD25TJ101 CARBON 0 25W 5 1000 0515 2 7000 TRANSISTOR J84 ERD25TJ101 CARBON 0 25W 5 1000 Q601 25C5343Y TRANSISTOR R103 ERD25TJ393 CARBON 0 25W 5 Q602 2SATS80Y TRANSISTOR R104 ERD25TJ683 CARBON 0 25W 5 68 TRANSISTOR R105 ERD25TJ103 CARBON 0 25W 5 205220 TRANSISTOR R106 ERD25TJ101 CARBON 0 25W 5 1000 0810 2565348 TRANSISTOR R107 ERD25TJ101 CARBON 0 25W 5 1000 TRANSISTOR R114 ERD25TJ473 CARBON 0 25W 5 47KQ
24. ERD25TJ102 CARBON 0 25W 5 qe K R423 ERD25TJ392 CARBON 0 25W 5 gs 22 1225 R444 RS02Y478JS METAL 7 pue R450 ERG2FJ473 METAL 2W 5 47 He 22222 S R451 ERG2FJ473 METAL 2W 5 47KQ 55 22 CO CL RE R500 ERD25TJ401 CARBON 0 25W 5 1000 eee CONUBEAD R501 ERD25TJ332 CARBON 0 25W 5 Ru Ei R502 25 332 CARBON 0 25 5 R503 ERD25TJ102 CARBON 0 25 5 R504 ERD25TJ152 CARBON 0 251 5 1 5 LF801 SPLF24A3 FILTER LINE R505 ERD25TJ101 CARBON 0 25W 5 1000 2101 K3953M FILTER SAW R506 ERD25TJ103 CARBON 0 25W 5 2102 5 9650 FILTER SAW R507 ERD25TJ332 CARBON 0 25W 5 3K30 2601 5 471 FILTER R508 ERD25TJ332 CARBON 0 25W 5 2602 OPEFST471Y FILTER EMI R510 ERD25TJ103 CARBON 0 25W 5 2603 OPEFST471Y FILTER EMI R511 ERD25TJ103 CARBON 0 25W 5 2604 OPEFST471Y FILTER EMI R512 ERD25TJ101 CARBON 0 25W 5 1000 2605 OPEFST471Y FILTER EMI R513 ERD25TJ101 CARBON 0 25W 5 1000 2606 OPEFST471Y FILTER EMI R514 ERD25TJ101 CARBON 0 25W 5 1000 2607 OPEFST471Y FILTER EMI R515 ERD25TJ101 CARBON 0 25W 5 1000 2608 SPEFST471Y FILTER EMI R516 ERD25TJ153 CARBON 0 25W 5 15 2609 OPEFST471Y FILTER EMI R517 ERD25TJ101 CARBON 025W 5 1000 2610 OPEFST471Y FILTER EMI R518 ERD25TJ101 CARBON 0 25W 5 1000 11 Parts Number Description R5
25. ORD 11 48 8309000 SPEAKER SYSTEM 12 50 0000277 13 58G0000149 COIL DEGAUSSING 14 A68EPD10X22 CRT 15 EUR7628030 REMOTE CONTROL MISCELLANEOUS COMPONENTS M481A 4856716000 POWER BUTTON SPRING M501 4855061600 DECO CTRL M551 4855553500 DECO SENSOR M791 LA701 DOOR LOCK 5 1301 TDA8358J IC VERTICAL 1602 TDA8946J IC AUDIO 1703 TSOP1238WI1 PREAMP 1801 STR W6754 IC POWER 1804 1010 PHOTO COUPLER 1806 DP130 IC ERROR AMP 1820 L7805CV IC REGULATOR 1822 KIA78RO8API IC REGULATOR 1823 LD1117V33 IC REGULATOR 1824 L7805CV IC REGULATOR 1901 TDA6107AJ IC VIDEO FUSES F801 5FSCB4022R FUSE 4A250V DIODES D101 DBAT85 DIODE D102 BA282 DIODE D313 1N4937G DIODE D403 DBY228 DIODE D404 DBYW76 DIODE D405 1N4937G DIODE D407 RGP15J DIODE Cct Ref Parts Number Description D408 RGP15J DIODE D410 1 40045 DIODE D411 1N4004S DIODE D414 1N4004S DIODE D450 1N4937G DIODE D501 DBAT85 DIODE D503 DTZX3V9B DIODE D504 DTZX5V6B DIODE D520 1N4148 DIODE D521 1N4148 DIODE D522 DTZX3V9B DIODE D523 DTZX3V9B DIODE D601 1N4148 DIODE D602 1N4148 DIODE D710 DTZX5V6B DIODE D801 LT2A05G DIODE D802 LT2A05G DIODE D803 LT2A05G DIODE D804 LT2A05G DIODE D805 1N4937G DIODE D806 1N4937G DIODE D807 1N4937G DIODE D808 DUZ6R8BM DIODE ZENER D811 DTZX5V1B DIODE 0820 DBYW76 DIODE 0824 DTZX5V1B DIODE D825 1N4148 DIODE D830 1N4937G DIODE D831 1N4937G DIODE D860 RGP30J DIODE D904 DBAV21 DIODE D905 DBAV21 DIODE D906 DBAV21 DIOD
26. TOR All resistors are carbon resistor unless marked otherwise Unit of resistance is OHM 1 000 M 1 000 000 2 CAPACITORS All capacitors are ceramic 50V unless marked otherwise Unit of capacitance is unless otherwise stated 3 COIL Unit of inductance is unless otherwise stated 4 EARTH SYMBOL Chassis Earth Cold 21 Line Earth Hot 5 VOLTAGE MEASUREMENT Voltage is measured by a d c voltmeter Measurement conditions are as follows Power source a c 220V 240V 50Hz Receiving Signal Colour Bar signal RF All customer controls Maximum position These schematic diagrams are the latest at time of printing and are subject to change without notice REMARKS Do not touch the hot part or the hot and cold parts at the same time as you are liable to a shock hazard Do not short circuit the hot and cold circuits as electrical components may be damaged c Do not connect an instrument such as an oscilloscope to the hot and cold circuits simultaneously as this may cause fuse failure Connect the earth of the instruments to the earth connection of the circuit being measured d Make sure to disconnect the power plug before removing the chassis NOTE 1 The Power Supply Circuit contains a circuit area which uses a separate power supply to isolate the earth connection The circuit is defined by HOT and COLD indications in the schematic diagram circuits except the Power Circuit are COLD 15
27. WS SCREWS Fig 2 LOCATION OF CONTROLS CRT Board MAIN Board Focus Screen Fig 3 VOLTAGE CHECK Input voltage 230VAC 12V V 11 95 TV ON mode if nothing specified Sound 1Khz mode Music SOUNDS M LOI ae High Voltage kV 29 5 0 5kV test conditions Input voltage 230VAC me ex 7500 92 L linearity TRL 400D 12 9 45 CRT AG8EPD10X22 G2 SCREEN CUTOFF 1 Receive a Colour bar pattern Adjust the screen VR till OSD is just change 2 Set the TV into Service mode to GREEN square 3 Select G2 SCREEN item OPTION BYTES MODEL OPTION BYTE 1 OPTION BYTE 2 WAVEFORM PATTERN TABLE Tek Run Wy Trig d Tek Run 7 c WM VERT DRIVE au T 1 2 d NINE j Sa 500077 om TEE M chi 7 500 chi 7 Tek Prevu BISCO NON domum dm md ddnde SO OS O EV rne Tek Stop ee 2 5V V 500mV 10 0 6 Chi 269 V Tek ch 1007 P chi 7 TN Ch 500077 SOO oe A chi 7 CONDITIONS Contrast Brightness MID Colour MID Sharpness MID 5 ALIGNMENT SETTINGS The figures below are nominal and used for representative purposes only To access Service Mode select program position 99 and set sharpness to minimum Press
28. aged by the short circuit After servicing see that all the protective devices such as insulation barriers insulation papers shields and isolation R C combinations are correctly installed When the receiver is not being used for a long period of time unplug the power cord from the a c outlet Potentials as high as 29 5kV are present when this receiver is in operation Operation of the receiver without the rear cover involves the danger of a shock hazard from the receiver power supply Servicing should not be attempted by anyone who is not familiar with the precautions necessary when working on high voltage equipment Always discharge the anode of the tube After servicing make the following leakage current checks to prevent the customer from being exposed to shock hazard CURRENT COLD CHECK Unplug the a c cord and connect a jumper between the two prongs of the plug Turn on the receiver s power switch Measure the resistance value with an ohmmeter between the jumpered a c plug and each exposed metallic cabinet part on the receiver such as screw heads aerials connectors control shafts etc When the exposed metallic part has a return path to the chassis the reading should be between 4M ohm and 20M ohm When the exposed metal does not have a return path to the chassis the reading must be infinite LEAKAGE CURRENT HOT CHECK 1 2 Plug the a c cord directly into the a c outlet Do not use an isolation tran
29. sformer for this check Connect a 2k 10W resistor in series with an exposed metallic part on the receiver and an earth such as a water pipe Use an a c voltmeter with high impedance to measure the potential across the resistor the previous measurements 6 The potential at any point should not exceed 1 4 Vrms In case a measurement is outside the limits specified there is a possibility of a shock hazard and the receiver should be repaired and rechecked before it is returned to the customer HOT CHECK CIRCUIT a c VOLTMETER WATER PIPE 2k 10 Watt did EARTH TO INSTRUMENT S EXPOSED METALLIC PARTS Fig 1 X RADIATION WARNING 1 The potential sources of X Radiation in TV sets are the high voltage section and the picture tube 2 When using a picture tube test jig for service ensure that the jig is capable of handling 29 5kV without causing X Radiation NOTE It is important to use an accurate periodically calibrated high voltage meter 1 Set the brightness to minimum 2 Measure the high voltage The meter should indicate 28 5kV 1kV If the meter indication is out of tolerance immediate service and correction is required to prevent the possibility of premature component failure 3 prevent any X Radiation possibility it is essential to use the specified tube SERVICE HINTS How to remove the rear cover 1 Remove the 8 screws as shown in Fig 2 SCRE
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