Home

"1' SERVICE MANUAL

Contents

1. positive output positive input DC volume f control negative output 1 4 Signal power x ground ground Block diagram 1 Sound IF Circuit On L system TDA 9830 is used as AM Demodulator on mono TV sets TDA 4470B is used for Nicam sound intercarrier and AM Demodulator on stereo TV sets with suitable SAW filters Systems TDA 3845 is used for sound intercarrier with a SAW filter on Nicam TV sets German Stereo models TBA 120U is used as FM demodulator for stereo sound carrier f i PT 11 Chassis Service Manual TDA4470B The TDA4470B is an integrated bipolar circuit for multistandard video sound IF signal processing in TV VCR and multimedya applications Features 5 V supply voltage low power consumption Active carrier generation by FPLL principle for true synchronous demodulation Very linear video demodulation good pulse response and excellent intermodulation figures VCO circuit is operating on picture carrier frequency the VCO frequency is swithcable for the L mode Alignment free AFC without external reference circuit polarity of the AFC curve is Switchable VIF AGC for negative modulated signals and for positive modulation Tuner AGC with adjustable take over point Alignment free quasi parallel sound QPS mixer for FM NICAM sound IF signals Intercarrier output signals is gain cont
2. 115V P1 R9 2D1 adjustable with P1 YES Control range of switched mode power supply 165 270V 11 Chassis Service Manual TROUBLESHOOTING GUIDE FOR MAIN PCB TROUBLE No color 1101 T102 C127 1102 check 38 SSC No vertical deflection Check K 1601 pin 42 1401 pin 43 1401 Vertical linearity Che 601 pin 42401 pn43MO eens 1401 IF FI101 Check 1101 pin 5 and pin 50 1401 pin 3 pin 5 G 1101 pin 5 pin 50 1401 pin 5 G R 403 1401 G R 403 1301 pin 5 1101 pin 25 ABL 1301 pin 3 1101 pin 17 1301 pin 4 1101 pin 26 301 pin 1 Q 301 D 302 1301 SDA SCL Band select 301 pin 7 8 303 K 1101 No video out on the SCAHT Check TV VID signals Q 651 No video in on the SCART Check 1301 pin 12 1101 pin 16 on AV mode check the video signals on AV mode SCART pin 20 and 1101 pin 15 1101 pin 1 Q 653 Q654 Check the audio signals on SCART pin 2 6 and 1101 pin 6 Check signals on pin IRO1and 1301 35 Vert horizontal synchron Interference No sound 95 hu Q rw Low sound Sound distortion Contrast Brightness Color saturation Tuning Memory No sound out on the SCART No sound in on the SCAHT No remote control reception 950 VOL SERVICES 8 Cherry Tree Rd Chinno
3. 16Y 88 i yVZ _ B JUMPER E 15081 lt D D po os 4 9 O Q md joe 9 D Is 2 AV VID gt AV VID D107 184148 5652 SEE dd 44414414 19 MAURITRON TECH SERVICES 8 Cherry Tree R Ra Chinnor Oxon OX9 4QY 01844 351694 01844 352554 Email enquiries mauritron co uk 115V B T iuf IDEN TUN T 0 102 10K 22 48 8 S IFIN C186 IH T ay 20v EX A IN TUN ABC SAF38 SMS51P 4 46 IF IN DEC IF IN T i 1101 VER DAY PE 57 i 6 wa 4 o M VERT PULSE x C110 PAL SECAM 11 C111 INCVBSIN 01C0N T vd 25 L FLYIN S H DRY sme 33V 71 4 43 5 i XTAL3 56 T 7 5K A av 5 J A133 22K SUBOUT 8 P R 6 B SHIFT Y B YOUT lt R YOUT E ee fe p R YIN B YIN H S CHR 124 a ca G DENEN TIE AL L INPUT TOIT g g 2511 TDA4665 DELAY LINE a TN X BVA i FZ 2 AV VID i ES 1 pg 154148 10K 15K
4. SWH AW 062 FL SAUAU00S ANZ 7 0 est S T 4122 5 d 30 1 T 24 L SWH 006 E A 58 11 Chassis Service Manual r x For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon 9 4QY Tal 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk ING PIN VOLTAGE SAA 7283 PINN m Mute input PER 5V Digital audio interference output 2 54V Audio VDD 20 5V Audio V SS OV 5 Internal audio reference voltage buffer _ 2 5V 6 External analogue input Right 0 3V Fm sound input Right mE 2 5V 8 Analogue output Right 2 5V 9 E Not connected _ 0V Not connected 0V Internal audio reference voltage buffer output B 2 5V 12 Quit VSS to DACs 221514 0V Not connected 0V Not connected EJ 0V Analogue audio output Left 2 5V FM sound input Left 2 5V External analogue input Left _ 0 4V Power on reset mute 5V Power on reset audio select Carrier loop filter connection 2 Carrier loop filter output 2222 Sine channel eve pattern output c IN sols 41 41 41 4 41 41 3 Sine channel offset compensator capacitor _ 2 5V Demodulator Vss NEM _ 0V 5 control voltage input 2 2 5V Demodulator 5 8V 7 VCO control voltage input 5V Mixer voltage reference 2 4V DQPSK inpu
5. c LN Nan 0 EE 0 0 100 T J 107 Collector Emitter Saturation Voltage Base Emitter Saturation Voltage GC18990 GC18990 221211 42122010 VCE sat Ht V DE 21111 p E BART og _ 1 17 e o4 I 04 ge ERR 9 ded T a ____ 21115194 ibl 0 2 aoe H a Ema 1 1 21111111 10 10 19 10 Power Losses at 16 2 Switching Time Inductive Load 16 KHz GC32920 GC32930 W EEBEEEEEENEEEE B sss S kiss s a ESE museum sumi CREPE 5 4 1050 fflyback 14 Rtj amb 12 4 f 15625 Hz ton 40usec toff 24 usec Tamb 25 C 0 24 51 15 19 23 27 31 35 38144 1 4 1 8 22 26 3 3 4 Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 69 7 T T T W W T UFOU W r Pr Tr Pr Pr T Yom wo m ww v vo Y X X XXE Ro A u Lon amp u 11 Chassis Service Manual For Service Manuals
6. aper i 9574058 SECOND SCART gt R94 202201 see 0690 144148 gt w N E Bk I Es T lt v v Q CN592 47 44 C818 0801 308 10 1801 43 88405 t 7283 1000F Ki 7 nF 66819 12 ELLE RBOR p X800 109 5 d Ws og C823 P 15 22nF 16 37 12 17 36 C978 100pF 19 34 1 38811 i 7uF 2 n 16 gt 10uF 100 z 3 0824 i 23 R812 gt lt F 4 0843 H 1 10005 UE 3CHALTUNGSPLAN CN693 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxor OX9 4QY Tel 01844 35194 Fax 01844 352554 Email enquirles mauritron co uk CN692 758 2 1N4148 lt 8689 8696 Nn sun ccs DNE DOUBLE SCART BOARD CIRCUIT DIAGRAM DOPPEL SCART BAUSTEIN SCHALTUNGSPLAN 062 612 195 510 066 618 185 510 010 191 011 506 08 000 60 19 062 EIZ 115 610 021 000 960 18 090 100 519 500 0 005 bE 200 120 005 200 09 210 029 500 090 520 15 500 029 BEZ 119 510 101 011 295020 018 628 019 500 085 00 085 809 062 202 115 510 06 000 00 200 010 000 860 519 115 580 1
7. 100NF 50V 20 D C843 CAP CER 100NF 50V 20 D C934 CER INF 25V 80 20 _ C198 a 100 25V 80 20 F _ C807 CER 100NF 25V 80 20 C826 2 CER 100NF 25 80 20 C828 9 i 040070021031 CER 100NF 25V 80 20 F F 040070021031 CER 100NF 25V 80 20 _ m wan 154 aeaa E eds 100NF 25V 80 20 CER 100NF 25V 80 20 F 100NF 25V 80 20 _ CER 100NF 25V 80 20 ee A 040070021031 CER 100NF 25V 80 20 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Page 7 Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 0 Ped eee APERIRE 13965 AMSTRAD 3121N ____ gt U s PARTNO COMPONENT 155 540070021031 CER 100NF 25V 80 20 F 325_ 040070021031 CER 100NF 25V 80 20 ____ C461 CER 10NF 50V 80 20 CAP CER 10NF 50V 80 20 D CER 1NF 50V 80 20 F __ CER 1NF 50V 80 20 CER 1NF 50V 480 206 _ 2 CER 1NF 50V 80 20 F ___ CER 1NF 50V 80 20 F _ CER 10NF 50 80 20 F CER 10NF 50V 80 20 F __ 4 50V 80 20 GER 10NF 50V 80 20 _ CER 10NF 50V 80 20 Fo C129
8. pa aa AL au E uL rM Dd REUS DARE e 5 5 NE 3 SS EN AER a aqa pi gt rue 2 5 18 eat Sec f 5 XU TE DEL me m gt XA see s s E gt 9 2 p 5 ee en ZR AR MER PERDE ESI SERI E ripetere abd ANN ana 2 itx Tr LLL 5 A la me Mi amma ve a EPA iru eid i Te eps E gt mele vimm 2 z 2 silane a e MM a mea ari RR PERS 9 2 MT 5 gt m ma DIL EUR n E d A ms See w e zu be bean eet cy ans NEUE PS ON B SHIFT S IR MODULE 0300 5 po C Loon 5 5M AV SW 22 12V 4 42 IR02 TFMS1360 nahe curant mec cem EX AUD GND GND INTVID_j LPRIME 4 J101 INT VID J102 9308 RMOT 5V1 L LPRIME 4103 BLUE 5102 q TV S L TV S R 2n RED AV 0 R GNO SYS SW SND IF1 i IF2 5103 AV I
9. 5 ae 22 w a 4 ii id QU TY lu l x SERVICE MANUAL CHASSIS For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk Modification reserved 4 4 11 Chassis Service Manual tD Lal UU Ui W W W W U UD ue XE WU IX CONTENTS ILLI PAGE Recommendation for service repairs 5 Handling of MOS chip components 5 X Ray radiation percolation 11 chassis adjustment procedure 6 Scart pin descriptions 7 Component descriptions 8 Fault tracing diagram power supply 9 Trouble shooting guide for main PCB 10 PT 11 chassis block diagrams 11 Exploded view 13 Placement of chassis 15 Descriptions of the parts 16 1 Switch mode power supply 16 2 Microcontroller stage 16 3 Analog operation part 16 Video IF amplifier 16 Sound F circuit 17 Synchronization circuit 14 Color decoding 17 4 Vertical deflection circuit 1 5 Horizontal drive circuit 19 6 Sound output stage 20 7 Teletext stage 20 8 CRT stage 20 The details of the boards 22 Extention Boards 23 Main characteristics 29 Board layouts 30 P1 11 Chassis Service Manual 5 Oscilloscope shapes 33 RC hand unit and circuit diagram 34 The descriptions
10. 77877 10300380 8446 5457 R454 I de e yah NIGEL eps oer eT ne ramen ae EMT Dj tee 1037 L JR 1 a aen ao 3045 IEEE 3034 c2 2034 1028 1106 119 C424 sun 1 1 35 4050 0 dag 2 ene S oir pum ce 673 tr or m 9523 jE _ X102 cene 270 x i 7 X Pi C134 F101 Dc s ea ee P 1173 a 1 12 Cd a mM 9 493 I A RO T hen P ww V ba 14 EUM 3 c wie REM hassis Service Manual F yp oo uonunetu s uinbu 99686 99810 4 156 99810 101 6 uoxo JOUUIYD 8 S3OIAH3S TyOINH23 61000 sjenueyy 9901195 104 1100 LM J302 J304 sd cH 25301 2 0 1047 1088 329 1 m 2 1086 231 330 3 C310 34 d ia p T CT
11. 220NF 63V 10 SMM _ 632 620004072241 220NF 63V 10 SMM 205 620004083341 63 596 822 330NF 63V 5 ____ C302 CAP 100NF 275VAC 20 RFIX2 002 CAP MKP 470NF 250VDC 5 C606 470NF 25006 5 _____ C608 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Page 13 Oxon OX9 4QY 01 844 351694 Fax 01844 352554 Email enquiries mauritron co uk 13965 AMSTRAD 3121N PART NO COMPONENT ___ POS 620013081041 CAP 100NF 63V 5 ___ _ C105 620013081041 100 63 5 C108 620013081041 100NF 63 5 210 620013081041 100NF 63V 5 620013081041 100 63V 5 112 100NF 63V 5 C114 620013081041 100NF 63V 5 _ 115 100NF 63 5 _ C118 CAP MKT 100NF 63V 5 _ C134 620013081041 100NF 63V 5 C461 KT 100V 5 928 100V 5 C936 CAP KT 33NF 630V 596 C006 CAP MKT 100NF 50V 1096 C506 CAP MKT 100NF 50V 1096 507 100NF 50 10 C303 CAP MKT 100NF 50V 1096 C624 KT 15NF 50V 10 _ 142 KT 15NF 50V 10 _ C927 CAP MKT 220NF 50V 1096 C931 CAP MKT 220NF 50V 1096 C932 220 50 10 010 621004003321 CAP
12. COIL 1UH 5 0 27A AXIAL FIXED 1930 COIL 1UH 5 0 27A AXIAL FIXED 1231 LINE FILTER 2 75 180615 COILLINEARITY5SOUH _L601 PREAMPLIFIER TSOP1136 ____ 01 8 7W 10W 50 120 _ TRIMPOT 1K 0 1W 30 H ADJ5 2 5 _ 202 TRIMPOT 1K 0 1W 30 H ADJ5 2 5 ______ P204 611340014701 TRIMPOT 470R 0 1W30 H ADJ525 P201 TRIMPOT 470R 0 1W30 H ADJ5 2 5 P203 TRIMPOT 470R 0 1W30 H ADJ5 2 5 P205 TRIMPOT 10K 0 1W 30 V ADJ 5 5 101 TRIMPOT 10K 0 1W 30 V ADJ 5 5 P102 TRIMPOT 2K 0 1W 30 V ADJ 5 5 _ TRIMPOT 500R 0 1W30 V ADJ 5 5 _ P602 TRIMPOT 5K 0 1W 30 V ADJ 5 5 P601 TUNER TECC2949VG28C WSP SMSNG 618004001031 ICAP 10NF 100V 10 C113 618014002231 22 50V 10 ______ 823_ KT 6 8NF 100V 10 929 6 100V 10 C937 6 100V 10 009 CAP 470NF 63 10 139 4 7NF 100V 10 C131 618024074701 CAP 4 7 100V 10 _______ C125 470NF 63V 10 C817 8 2NF 1 6 2 5 ___ 607 47NF 100V 10 _ C609 620004071031 CAP 10NF 100V 10 C133 220NF 63V 10 5 _ 21401 MKT 220 63V 10 5 _LARKA 220NF 63 10 5 _ 10805 620004072241 220NF 63V 10 5 810 220NF 63V 10 _ 304 620004072241
13. PT 11 Chassis Service Manual lt Oo Y saDM oM o n s TDA3845 TDA3845 is a quasi split sound IF circuit which is designed to provide high performance television FM AM sound Features Gain controlled wide band IF amplifier High precision internal 90 phase shifter for quadrature demodulator Amplitude detector for gain control which operates as a peak detector for FM sound and as a mean level detector for AM sound switchable wideband synchronous demodulator for AM detection Stabilizer circuit for ripple rejection and constant output signals ESD protection for all pins Suitable for all FM standards and L as well as L accent standard NICAM compatible TDA 3845 1 IF amplifier input 2 D AGC control capacitor Do Peak mean detector capacitor D AM output 1 0 Vpp 4 B GO connected IF amplifier input 1 PT 11 Chassis Service Manual C Y E l TDA3845 Optional Tu gt IF intercarrier I SE output i AM ne output x 5 23 Block diagram x Service Manuals Contact MAURITRON TECHNICAL SERVICES i 8 Cherry Tree Rd Chinnor 1 Oxon OX9 4QY Tel 0184
14. _ _ HOLDER LED PCB MONITOR B BISONIC pl a nl 0 PI 005051084621 SILICON ISALATOR TO 220 LEEREN 005051084631 BEAD ISALATORTO220BBH TO22DBH _ 1003 BACK COVER BISONIC 20 21 HOLDER POWER CABLE ___ HOLDER CABLE 0 5M FRAME CRT SASE YENI COVER CRT PT SASE YENI COVER CRT BOTTOM PT SASE YENI GRIL SPEAKER 20 21 SAD BISONIC GRIL SPEAKER 20 21 SOL BISONIC RESISTOR 270K 1W 5 RESISTOR C F 1K 1 4W 5 RESISTOR C F 1K 1 AW 5 ___ RESISTOR C F 1K 1 4W 5 RESISTOR 10K 1 44W5 RESISTOR C F 1R 1 4W 5NONFLMBL RESISTOR C F 1 5K 1 4W 5 RESISTOR C F 15K 1 4W 5 RESISTOR 228 1 4W5 RESISTOR C F 2 2K 1 44W5 mamana _ Page 1 13965 AMSTRAD 3121N PART NO COMPONENT POS RESISTOR 390R 17 1 4 5 7 5 __ RESISTOR 3 9K 1 AW 5 _ RESISTOR C F 3 9K 1 4W 5 4 RESISTOR C F 3 9K 1 4 5 RESISTOR 4 7K 1 AW 5 _ 020020647231 RESISTOR C F 4 7K 1 4W 5 RESISTOR C F 4 7M 1 4W 5 RESISTOR FUSIBLE 10 10R 1 4W 5 _ 030050615211 RESISTOR C F 1 5K 1 2 1 2W 5 030050615211 RESISTOR 1 5K 1 2W 5 030050615901 RESISTOR 1 5R 1 2W5 _ 03005064 647511 RESISTOR 47M 1 2 5 SF i ROTS 030050682321 RESISTOR C F 82K 1 2W 5 __ R208 030050682321 RESISTOR C F 82K 1 2W
15. 1 4 11 Chassis Service Manual THNY OER 6 ls a RS oon 5 L 5 83 gt 9 c o tear 114 39 n R 4 125 m yas t J m m O30IA s 4 4 AS OSA 00SN e Ls r EZG cr 22 70521 00931 kz sa s PT 11 Chassis Service Manual DOUBLE SCART BOARD CIRCUIT DIAGRAM 5680 2109305 7 9 11 013 15 017 019 Y od o4 28 e10 e12 014 916 018 920 seo 000 5692 E NE R699 478 uu 6 sv Y 1 4 K uF 0696 BC547B x 8671 5 5 0695 80547 Service MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01 844 351694 Fax 01844 352554 Email enquiries mauritron co uk wa v UU 0X UE UE UE UU 1 OU UE UU UE uU UU UD UD UL UE UU UU UU UL Uu Ub U UL CHARACTERISTICS Chassis Color And Sound System PT 11 Chassis Service Manual 90 narrov neckCPT Push through chassis for keyboard Europea
16. gt an 107 2 c 111111 iL l 68 Test Conditions VCE 1500 V 125 C Emitter Cut off Current 5 V saus 0 25 400 V 11 Chassis Service Manual BUH515D ELECTRICAL CHARACTERISTICS Tcase 25 unless otherwise specified 25 5 3 2 4 170 5 V 5 V T y 100 ts Storage Time 1 25 Ipo 2 5A Fall Time INDUCTIVE LOAD le 5 _ f 15625 Hz ts Storage Time 1 25 152 2 5 _ 3 5 Us Fall Time ee 4 50 ns Vceflyback 71050 sin ter 10 GC32710 T HII emm Hii sas a 5 HI HHI 0 5 FH per 5259 1 E CIL _ PT 11 Chassis Service Manual Derating Curves DC Current Gain GC18950 GC32900 22 21 01122121 11111 HEHEHHE ww HE Eon mu Sols E 041 41 100 EN 214111 12111111 a N mam 001 NOK pul ara AL NIS n E A A 50 1111 G ER E 5 gt
17. CER 10NF 50V 80 20 _____ C130 pom d 040070042231 CAP CER 22NF 50V 80 20 TNI aa comm o 040070042231 CER 22NF 50V 80 20 F nr n 0 m m mv CER 22NF 50V 80 20 F C142 CAP CER 22NF 50V 80 2096 5 C613 CER 100NF 50V 80 20 F _ C984 ELECT 100 16V 20 _ _ C501 CAP ELECT 100MF 16V 20 _ _ C815 ELECT 100MF 16V 20 ____ C933 CAP ELECT 100MF 16V 20 _ C935 042140161071 CAP ELECT 100MF 16V 20 _ C320 042140164771 ELECT 470MF 16V 20 _ 037 CAP ELECT 2 2MF 50V 20 _ C625 CAP ELECT 22MF 16V 20 C813 i CAP ELECT 22MF 16V 2096 __ C814 CAP ELECT 4 7MF 50V 20 C146 ELECT 4 7MF 50V 2096 C192 ELECT 25V 2096 C523 GAP ELECT 10MF 25V 20 C812 ELECT 10 25V 20 C825 ELECT 10 25V 20 ____ C831 CAP ELECT 10MF 25V 20 C832 ELECT 10MF 25V 20 __ C104 ELECT 10 25V 20 CIO CAP ELECT 10MF 25V 20 C109 ELECT 10MF 25V 20 __ C140 042414251061 ELECT 25V 20 _ C150 CAP ELECT 10 25V 2096 C151 CAP ELECT 10MF 25V 2096 C182 CAP ELECT 10MF 25V 20 C154 ELECT 10MF 25V 20 __ C306 ELECT 10MF 25V 2096 C307 ELECT 100MF 63V 2096 C627 ELECT 1
18. a T DOUBLE SCART BOARD DOPPEL SCART BAUSTEIN Ra00 5 108 C985 IF 1b 34 1 8804 inf 4 uF 5 1008 5y 5 1850 el 10444708 5 lt i 1N4348 1 28 TY D SIF1 1 S1F2 2 a T C SIF4 2 SIF2 1 5850 05 ae m OFFSET p L C816 nao ceos 8 Ter Tow ca tw 2 oo a 5 100n gt 1 e i k m 85 CBs A e 19 1801 a SAA7283 818 P JL 0 6 BuH 88405 100pF 1 ak A 2819 1 41 8808 C822 8809 w LAPRIME 1 40 X800 4 330nF 22K 1 i Ili 8 182482 M M a db y me 1 855 Ags Pay 3508 2978 15 100pF C811 2 827 t 42 0 047uF 6825 ES 5886 Rau Te ym 10uF E 0824 220 5V 2 2 uo R lt 25 27 83 Ed gt road 83 14 7 al EB T 100nF R803 425 5 Casa 1uF 390 ee JSTEIN SCHALTUNGSPLAN Y Y Y n e D Q CN693 IC690 74HC4053 ere R695 S 2k 4708 0690 5 Em a
19. A Y input JEMEN XN dad TEL CHROMINANCE HUE E TRAP AND CHROMINANCE LUMINANCE TT CLAMP 55 BYPASS I SWITCH BANDPASS MATRIS SWITCH 12417 au En zm E LUMINANCE Y DELAY OUTPUT Fray BOUT Bs d SWITCH PEAKING staces sour i wmm _ as _ nI MBC214 d d wr PEAKIN CON BRI GND2 GNO Vp L 2 MT ME RGBIN DECRG DEC 11 Chassis Service Manual PINNING PIN PIN VOLTAGE IF demodulator tuned circuit 6V Video identification output 5V Sound IF plus volume contro 0 5V AV External audio input 4 IF video output 2 5V and 2 0 Vpp Video EI Decoupling digital supply BV 9 Ground Positive supply 8V 8V Ground D Decoupling filter tuning 3 25 14 Peaking input 4V External CVBS input 3 5V Chroma A V switch input OV TV 8V AV we we T Brightness control input 1V 3 5V 2 5V 4Vpp G output 2 5V 4Vpp R output 2 5V 4Vpp RGB insertion and blanking OV TV and 1 5V RGB mode R input for insertion 3 3V and 0 7 G input for insertion 3 3V and 0 7 Vpp B input for insertion 3 3V and 0 7 Vpp ek 4401 x UD 79
20. 1 Nm O 1 CO 25 Contrast control input 0V 3V Saturation control input 0V 3V x N lt Hue control input or chroma _ 6 4 lt 28 B Y input signal 29 R Y input signal R Y output signal lt N 1 B Y output signal 4 43MHz output for TDA8395 4 6 4 5V SEC 3 Loop filter burst phase detector 14 5 3 58 MHz X tal connection i 35 4 43MHz X tal connection 2V Start horizontal oscillator CO n3 47 ee rm nmm Iw um w eee Xt wam W m R D I PT 11 Chassis Service Manual PIN VOLTAGE G1 loop filter 3 75V 46 Fit ______ Tuner AGC output AGC decoupling capacitor 4V 49 Tuner take over adjustment D Audio output 213 4 Decoupling sound demodulator 4 5V Decoupling bandgap supply P P p P B For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk a a 11 Chassis Service Manual TDA 4665 The TDA4665 is an integrated baseband delay line circuit lt provides a delay of 64 us fo
21. 11 CHASSIS CIRCUI 47K VOL BRIG SAT CONT HUE E BND0 2 Simo ST AV 5 C NN FE E XTAL2 4 x 1 CO KEYO TEST lg KEY1 0 0964 Ao 2 0 0802 e V SYN E 9 2 1 4 KEY4 A da CHASSIS CIRCUIT DIAGRAM 11SCH For Service Manuals Contac 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351854 Fax 01 844 352554 1402 TDA7057AQ STEREO tt Pat gt sS s E g SS gt z gt gt S 8 25 8 7 8 9 10 95115127 13 AGC lt i 0EC 0UT TUN T 0 a K TDA8362 wasp 41 PAL SECAM 01 0 XTAL3 58 PAL x 35 C114 0 4 63 lt lt 3361 PAIR A 48 pm ar apu u mnd Mh A Cauca kam NP S mpi mE On PE u amas a CU aa C a OUR BRUDER dns NEUEN an lt n La om QUIPPE IAE E IUSSIT E E signa ne UTERIS ER E PT 11SCHASSI GESAMTSCHALTP 1402 222 SPEAKERS
22. D 2 UL put rr nv L ih o i 1346 EE ME c EE 197 24 18315 8336 eas A305 IIF R304 22425 nae LO 9953 jen 0455 0455 0106 126 122 R12 m n fo PT 11 Chassis Service Manual For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351894 01844 352554 Email enquiries mauritron co uk 34 voy X Y Wow d Go Go UG Uo UD H o YUAsR ssxsWVT sTIF F REMOTE CONTROLLER TRANSMITTER PCB CIRCUIT DIAGRAM PT 11 Chassis Service Manual 5 5 Cc C 6 Q 95 5 i i MEN 2 Cm 4 35 k w 72 74 W U G l G U xu ww U PT 11 Chassis Service Manual at an i Video Processing Unit With TDA8362 THE DESCRIPTION OF THE INTEGRATED CIRCUITS Video and time b
23. _ 040046151021 CER 1NF 1KV 10 BN __ omnid 040046151021 CAP CER 1 1KV 10 BN _ 040046151021 CER 1NF 1KV 10 _ CER 4 7NF 2KV 20 BN 1NF 25 80 20 _ 1 25V 80 20 CER 100NF 25V 80 20 Fo 100NF 25V 80 20 CER 100NF 25V 80 20 Fo 040070021031 CER 100NF 25V 80 20 F 100NF 25V 80 20 a CER 100NF 25V 80 20 __ GER 100NF 25V 80 20 _ CER 100NF 25V 80 20 F _ CER 100NF 25V 80 20 CER 100NF 25V 80 20 ___ CAP 100NF 25V 80 20 100NF 25V 80 20 CAP CER 100NF 25V 80 20 F CER 100NF 25V 80 20 CER 1NF 50V 80 20 CER 1NF 50V 80 20 CAP CER 1NF 50V 80 20 F _ CAP CER 1NF 50V 80 20 CER 10NF 50V 80 20 6027 CER 10NF 50V 80 20 CER 10NF 50V 80 20 CAP CER 22NF 50V 80 20 F CER 22NF 50V 80 20 ____ CAP CER 22NF 50V 80 20 F 040070042231 CAP CER 22NF 50V 80 20 F ____ 040071042221 CAP 2 2NF 50V 80 20 F mom m m m m m m m m m m m m m m Y m m m m m m Q CAP CER 4 7 400 4KV20 CAP ELECT 100MF 16V 2096 CAP ELECT 470MF 16V 20 CAP ELECT 470MF 16V 2096 For Service Manuals Contact TECHNICAL SERVICES Cnerry Tree Rd Chinnor Page 6
24. 10K 1 6W 5 RESISTOR C F 10K 1 6 5 RESISTOR 10K 1 6W 56 RESISTOR C F 10K 1 6 5 RESISTOR 10K 1 6 5 ___ RESISTOR C F 100K 1 6W 596 030140610411 RESISTOR 100K 1 46W5 030140610411 RESISTOR 100K 1 6W 5 W X AU U 2 22 22 Med ne A A PPM RESISTOR C F 100K 1 6W 5 RESISTOR C F 100K 1 6 5 RESISTOR 100K 1 6W 5 RESISTOR 100K 1 6W 5 RESISTOR 120R 1 6W 596 RESISTOR C F 12K 146W5 RESISTOR C F 12K 1 6W 5 RESISTOR C F 12K 1 6 5 _ RESISTOR C F 12K 1 6W 5 _ RESISTOR C F 12K 1 6W 5 _ RESISTOR C F 12K 1 6 5 _ RESISTOR C F 12K 1 6W 5 RESISTOR C F 12K 1 6W 5 RESISTOR C F 15K 1 6W 5 RESISTOR C F 15K 1 5 ___ RESISTOR C F 15K 1 6W 5 030140615421 RESISTOR C F 150K 1 6W5 RESISTOR C F 180R 1 6W 5 RESISTOR 1 8K 1 6W 5 RESISTOR 1 8K 1 6W 5 ____ RESISTOR 1 8K 1 6W 5 RESISTOR C F 1 8K 1 6 5 0 RESISTOR 220R 1 6W 5 ___ RESISTOR C F 220R 1 6W 5 030140622101 RESISTOR C F 220R 1 6 5 x x Page 3 BR ON ON GUN S 51450181 10934 FIDELITY CTV 3014F sim i adam gt PART NO COMPONENT POS RESISTOR C F 2 2K 1 6W 596 R108 RESISTOR C F 2 2K 1 6W 5 RM RESISTOR C F 2 2K 1 6W 5 6 _ 8337 RESISTOR C F 2 2K 1
25. 5Vpp 5 Serial data port for the I C bus open drain output It can still be driven during power down of the device 5Vpp l 26 to 40 Internally connected Must be left open circuit in application EE UNI mh cO N a lt 24 CO O ee 11 Chassis Service Manual j 22 1 wj w Y COR RGBREF RGB ODD EVEN mj 1 wj DISPLAY a HAMMING i CHECKER m AND PACKET 26 SAA5254 PROCESSING ENGINE PAGE _ SIEG TELETEXT ACQUISITION AND REGENERATOR C BUS SDA 4 INTERFACE 27 DCVBS _ Veg ANALOG _ V 2 ES TO TIMING 59 DIGITAL CHAIN REF 2 DISPLAY T INPUT OSCOUT CRYSTAL CLAMP CLOCK OSCILLATOR AND SYNC SEPARATOR OSCGND BLACK iREF CVBS POL VCR FFB STIV LFB 4 Block diagram for 1129 01140 package 11 Chassis Service Manual L PCF84C81 CTV 974 PINNING PIN VOLTAGE WITH TEXT WITHOUT TEXT L 4 bit Port Bit 2 P2 2 TAMEN 4 bit Port Bit 3 P2 3 4 4 4 4V Bidirectional Clock for Serial 44V s 8 bit I O Port Bit 0 0 5V CO 5V 8 bit Port
26. A lt O y 61895 31 DOUBLE SCART BOARD FASTEXT BOARD UNAN Y LI gt 11 Chassis Service Manual M OSCILLOSCOPE SHAPES 1 5usn div 100 volt div Drain of o1 5 Smsn div 1 volt div i WE OE Qu QURE r ee ee ET oot 601 pin 3 S 2 Susn div 2 volt div Qucm MEN mun y s 10 pin 19 13 adc ded 20 volt div Callaetar of Q601 2 20 usn div 2 volt div FL D 301 26 6 5usn div 20 volt div RUNE 601 pin 5 19 10 usn div 2 volt div 10 XE 101 pin 18 14 20usn div 1 T aD E Pin NEEGEEZE 1 101 pin 13 En 5 msn div 2 volt div 1 H coor BENE umm BEEN 301 pin 27 7 20usn div 2 volt div 101 pin 38 11 10 usn div 250 VORIN Collector of Q602 4 5 msn div 0 5 volt div 101 pin 41 8 20usn div 2 voit div 12 20 usn div 0 2 volt div 1101 137 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Em
27. ELECT 10MF 250V 20 C610 ELECT 10 250V 20 C206 ELECT 16V 2096 C158 ELECT 4 7MF 16V 20 C841 E ELECT 2 2MF 50V 20 __ C806 u CAP ELECT 2 2MF 50V 20 _ 28097 CAP ELECT 2 2MF 50V 20 ___ C839 ELECT 2 2MF 50V 20 C136 CAP ELECT 2 2 50V 20 gt C141 x ELECT 2 2 50V 20 C308 ELECT 2 2 250V 20 gt C208 ELECT 47MF 16V 20 042447164761 CAP ELECT 47 16V 20 I CAP ELECT 47MF 16V 20 C804 ELECT 47 16V 20 gt gt C868 CAP ELECT 47MF 16V 2096 C828 27 47 16 20 T coti 47 16 20 C035 2 ELECT 47 16V 2096 C322 ELECT 47 16V 20 ____ C451 ELECT 47 16V 20 _ C452 ELECT 220MF 50V 20 C628 CAP ELECT 100MF400V20 SNAP IN C605 a IC PCF84C81AP CTV972 TXT CONT 1501 TDA8425 STEREO AUDIO PROCES 1902 TDA4605 wa 1001 For Servic 9 gina SERVICES f Tel 01844 351694 Fax 01844 352554 2 Email enquiries mauritron co uk 13965 AMSTRAD 3121N PART NO 045101070221 PCA84C841 078 2 CTV350SV2 COMPONENT __ 045000000961 TDA6103Q RGB OUTPUT _ 045000000981 TDA7057AQ 2X5W STEREO AMP _____ 715000000991 TDA3845 QSS amp AM SOUND DEMOD ___ mt
28. XTAL PLCK m OSC RESET rom NICAM 728 DECODER AND DEVICE CONTROLLER l 0120 ADSEL DIGITAL FILTER GAIN J17 DE EMPHASIS VSSD NOISE SHAPER NOISE SHAPER LEFT CHANNEL RIGHT CHANNEL VSSDAC CDR EXTL OUTPUT SWITCHES VSSA AND BUFFER VROA LEFT CHANNEL VRCA INTL OPL Block diagram of SAA7283 OUTPUT SWITCHES AND BUFFER RIGHT CHANNEL INTR 11 Chassis Service Manual _ PIN VOLTAGE 0 5V 5V 5V 2 5V 5Vpp 5Vpp OV 5V MIXREF BITSREAM DAC RIGHT CHANNEL im FMR 11 Chassis Service Manual F T s sos 6 t TDA 8425 PINNING PIN VOLTAGE Input 2 Left 5 83V External decouplage capacitor VCAP 11 66V Input 2 Right 5 84V 4 Supply voltage 11 76V Ground OV 6 Bass Right 84V 5 Bass Right 5 85V 8 Treble Right 5 85V 5 9 Output Righ 5 85V Ground OV E Voltage Range 43V Voltage Range 4 3V Output Left 85V 5 Service Manuals Contact Treble Left 385V MAURITRON TECHNICAL SERVICES Bass Left 5 85V __ 8 Cherry Tree Chinnor x E EC em 4QY Bass Left Tel 01844 351694 Fax 01844 352554 External capacitors 2 _ PK on Email enquirtes mauritron co uk 18 Input
29. 50V 10 6621 4 7 50V 1096 71 C622 CAP 100PF 500V 10 __ C614 CAP 22NF 1KV 1096 003 2 2 1KV 10 _ 004 2 2NF 1 10 BN 470 1KV 108 15 470PF 1KV 10 ___ C024 w 470 1 10 ___ C028 040040156811 CER 680PF 1 10 BN _1 C604 Eum 10 1 007 040040174711 CER 470PF 2KV 10 BN __ C602 CER 6 8NF 2 10 BB _ C20 2 2NF 400VAC20 4KVSFTY ____ C014 50V 10 ____ C201 x 040042041001 CAP CER 10PF 50V 10 C202 040042041001 CER 10PF 50V 1096 CH 210203 1N 50 1051 ____ 985 22 50V 10 CH 504 22 50V 10 C505 22 50V 10 1261027 22 50V 10 CH _ _ C310 040042042201 CAP CER 22PF 50V 10 CH CER 22PF 50V 10 C312 040042042201 CAP 22 50V 10 CH 0542 040046151021 CER 1NF 1KV 10 _____ C008 040046151021 CAP CER 1NF 1 10 BN 030 040046151021 CAP CER 1NF 1KV 10 BN C033 CER 1NF 1KV 10 BN Cen 040067041031 CAP 100NF 50V 20 D _ C802 100NF 50V 20 D C842
30. CAP CER 390PF 50V 10 SL C651 CER 390PF 50V 10 SL C652 CER 10PF 50V 5 CH C834 100PF 50V 596 ____ C978 CER 100PF 50V 5 CH C979 040032041801 CER 18 50V 5 CH C127 18 50V 5 2 410301 18 50V 5 _ 315 CER 18 50 5 C316 CER 27PF 50V 5 05 __ C170 CAP CER 27PF 50V 596 CH 05 C171 CAP CER 180PF 50V 596 CH C455 CER 100PF 50V 10 SL C818 CER 100PF 50V 1096 SL C819 CAP CER 1N 50V 1096 B p _ C407 CER 1N 50V 10 B C620 220PF 50V 10 SL _ C824 CER 220PF 50V 10 SL C319 25V 10 C653 040040043331 CER 330PF 25V 10 B C654 CAP CER 47PF 50V 10 CH _ C106 47 50V 10 CH C190 CAP CER 4 7NF 50V 1096 B C844 CER 4 7 50V 10 ___ 77771 C846 6 mm T TT TF f fW TE W 7P TT f T T TT T Y Y Y W Ga N PB 13965 AMSTRAD 3121N 040070021031 CAP CER 100NF 25V 80 20 F _ 833 040070021031 CAP CER 100NF 25V 80 20 040070021031 CAP CER 100NF 25V 80 20 F 040070021031 CAP 100NF 25V 80 20 _ 040070021031 CAP CER 100NF 25V 80 20 F _ 040070021031 CAP CER 100NF 25V 80 20 F oN 27 COMPONENT ___ POS E 4 7
31. __ 5 83V 19 External 1 ________ 9519 89 V PSEUDO 1 PSEUDO 2 TREBLEL TREBLER i nF Tie 33 nF 33 nF mu ji 5 6 nF 19 17 stereo 16 15 6 7 14 8 spatial 1 poc ce Ga IN1 L pseudo lt OUT L 23 gt E de mono gt Pb 2 f spatial EMEN T m stereo pseudo 2 1 volume INI R balance bass treble OUT R 9 3 Q gt y Stereo stereo af ali t do TDA8425 0 SUPPLY 4 mm no de x 45 100 SDA SCL DGND P AGND Block diagram 11 Chassis Service Manual Vertical Deflection Circuit With TDA3653B The TDA3653B is a vertical deflection output circuit for drive of various deflection systems with current up to 1 5 A peak to peak Features Driver Output Stage Thermal Protection Flyback Generator Voltage Stabilizer Guard Circuit TDA 3653B PINNING 1 PIN VOLTAGE Output Stage Driver Input 1 2V and 2Vpp Ground _ Switching Circuit Input 1 2V and 2Vpp Output Stage Ground Output Voltage _ 13V and 45Vpp 6 Supply Voltage for the Output Stage 26V DC Voltage produced the Guard Circuit ___ 8 Flyback Generator Output gt 8 9 Supply
32. 8 g p 2 4 4 d 8 z m w m BAS 3 ashe 33NF 2 41 um R322 gt 20 10K a 3 934 220NF tms InF A A 0 22uF F900 II aj 5 5 74 SCESDA gt e mum SFE5 74 pamm 12V INTVID TY S R 47 TY S L 501 1 4 Fo SFTOA Get a can a 2 L 5 54119174 AIDS 1 i 24 03 42 0 E EP z gt gt aa gt gt ba F904 16 74 GERMAN STEREO BOARD CIRCUIT DIAGRAM GERMAN STEREO BAUSTEIN SCHALTUNGSPLAN ton q gt fate 3 10006 C803 x Hh 47uF 4 9 4 180 7283 C812 10uF il 02 2ed ls 837 x ONLY FOR M1 94 inf 18 220NF 129 i 47 1 T 0 22uF C926 33NF SNF 3 cg29 8910 6 BNF T 2x2 20119 117 jis ns 114711 8812 1008 EM g 3 i I902 TDA8425 _ d x m 23 z eg 2 2 3 4 gt lt a 2 29 8 3 5 6 7 Ja g 10 5937 24 8813 I 29 4 C935 yan 1 5902 iv75 L 3SPLAN For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01 844 352554 Email enquiries mauritron co uk
33. COMPLETE PREAMP PTSASE 14 COMPLETE KEYBOARD PT PRM PRNS FUT ww m mm r 841110010926 CRT BLOCK 14 LITVANYA 905100142020 IFRONT CABIN PAINTED 1 14 001 002 05 905102145370 PAINTED KNT 21 14 003 905461003490 CR WINDOW 14 003 22 966001491025 STRAPHOR 14 001 002 003 __ Service Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk Page 11 NOE X XY X EROS AGB AR OR GRO ULL ars VON ES X OA A DOA AO GU UE L Ow C 13965 AMSTRAD 3121N PRODUCT NAME AMSTRAD 3121N PRODUCT NO 13965 COUNTRY ENGLAND COMPANY AMSTRAD CRT 21 HITACHI SA PAL FAST TXT STEREO CABINET TYPE BIGALAXY 001 V NM REMOTEGNTROL TMdSL A CHASSIS TYPE 11 COMPONENT 002020511030 CABLE INC COK BLACK 7 0 20 _ CABLE 2P 1SKT 35CM _______ CABLE 2P 1SKT 35CM S B DEG SGS CABLE 4P 1SKT 50 50CM STR HOP CABLE 4P 3P 2SKT 38CM 5 1 002052000401 CABLE 5P 28KT 38CM SM1 ____ CABLE 2P 1SKT 40CMVERT 7 CABLE 2P 15KT 40CM HORZ 002344500031 CABLE 2P 1SKT 40CM RED WHITE CABLE KLN COK 12 0 19 BLACK P CABLE SINGLE ICICOK 770 25 BLACK 1601 POWER CABLE PAL 500UH M CABLE 24 0 20 180 2021
34. lt Br 8V gt AV VID 5652 HH S653 e E AV 0 R gt lt e gt m gt lt gt lt 9 5 msn div 1 volt div 6 5 msn div 20 volt div 7 20 usn div 2 volt div 8 20 usn div 2 volt div IC 601 pin 3 IC 601 pin 5 IC 101 pin 38 IC 101 pin 20 OSCILLOSCOPE SHAPES OSZILLOG 1 2 1 0 4665 DELAY LINE K ll ee ed 2 AV VID D107 ad T AV VID 4 t 444 x AV 0 R AV O L 1 C614 500V _ _ C M EX AUD uz c WQ M OSCILLOSCOPE SHAPES OSZILLOGRAMME 7 20 usn div 2 volt diy 8 20 usn div 2 volt div 9 20 usn div 2 volt div 10 10 usn div 2 v L UL e BE ladis lu la IC 101 pin 38 IC 101 pin 20 IC 101 pin 19 IC 101 pin 18 TDA4665 1251 DELAY LINE TDA8395 WT 18 B Y IN Y 0 SECAM D 8ND T OUT TIN ai oa FOR MONO SECAM L L FUR MONO L L HOR DEFL 5601 SW SND HOR
35. 250 20 _ C615 ELECT 1 16V 20 _____ C800 ELECT 1 16V 20 _____ C801 mli D onm nd 042416161051 CAP ELECT 1MF 16V 20 _ 8 I 13965 AMSTRAD 3121 ly PART NO __ COMPONENT gt POS ELECT 1 16V 20 C938 m ELECT 1000MF 35V 20 RSS ______ C626 CAP ELECT 1 50V 20 ELECT 1MF 50V 20 6503 m 042416501051 CAP ELECT 1MF 50V 20 C526 ELECT 1MF 50V 20 C827 ELECT 1 50V 20 gt _ C012 ELECT 1 50V 20 0 C032 DF CAP ELECT 1MF 50V 2096 T C128 ELECT IMF 50V20 _ C132 ELECT 1 50V 20 1 C305 m ELECT 1 50V 20 ___ C306 ELECT 1 50V 20 _____ 403 ELECT 22MF 50V 20 _ C838 ELECT 22MF 50V 20 C026 ig CAP ELECT 220 16V 20 _ 777776029 ELECT 220MF 16V 20 C037 ELECT 220 16V 20 20387 gt 042417163361 CAP ELECT 33MF 16V 20 C156 ELECT 47 160V 20 ___ C025 ELECT 1000MF 25V 22 C402 CAP ELECT 1000MF 25V 20 10 20 C034 m CAP ELECT 470MF 35V 20 COM ELECT 470MF 35V 20 F C612 ELECT 10MF 250V 20 C605
36. 3 7 718 9 0 AF output signal main AF output signal Vo4 main 50 us de emphasis capacitor of AF Ch F Channel 1 2 2 Ground 50 us de emphasis capacitor of AF F Channel 2 Supply voltage 5 to 10 MHz crystal input C bus clock input For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351894 01844 352554 Email enquines mauritron co uk T X TV T Xo YS monm m cow wow w ow 11 Chassis Service Manual 0919 S Y 1 4 1414 eui Jo 4 44 2 ZHALZF JV ts o ur Wy 3d 001 WOU 25 94 payejaz ou 6 5 jndjno pue ndul 91 BN 01 dy 1 27 NOLLVH3N39 YOLVTHOSO UA SZ 13538 901 NO H3MOd 10H1NOO 5462 ug a 034315 uoivugaiNi Tid TV 11910 1V1I910 vas 1041409 509 22 P uo1vinaowaa Jos 06 1V11910 YOLVYSILNI WIG m vna 13 31 0681815 06 0986 01 YA t Au 009 18908 975 EUN ap 4 ez CEA 1 4 OS pug 04 OF B AW 062 SWH AW 005 SINH AW 062 UH OF 9S 151
37. 3 3NF 100 10 621004003321 CAP 3 3NF 100V 10 C101 621004004731 CAP KT 47NF 100V 10 _ 0811 621004051041 100NF 250 10 10 RFIX2 C204 621014064741 CAP MKT 470NF 275VAC 10 RED 10 RFIX2 C001 REMOE CONTROL TM45 L SKD _ LED PCB BLOK 001 001 MAIN CHASSIS FTX B 1 PT11 P INH CRT BLOCK 21 SEG HITACH COMPLETE NIC STR BG PT SASE COMPLETE FTXT PTSASE 5346 _____ COMPLETE CRT SOCKET 2021 SASE COMPLETE POWER CABLE SM1P PRMFX FRONT CABIN PAINTED 21 BISONIC 001 BUTTON ON OFF BISON MONITOR 001 905113007060 ACR WINDOW BISO MONIT 001 BUTTON 4 KEYS 2021 BISON MONITOO1 STRAPHOR 20 21 BISONIC For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk Page 14 vimm Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 01 844 352554 Email enquiries mauritron co uk FOR SECAM L L FUR SECAM L L TUO1 WSPTUNER R307 R308 2 2 AG _ R306 100A l TUNE ES E 9 ite C303 Our 18 25v a acie il R301 10k 1 1 Iz g VOL BRIG I TIT Cee ox d Jm HUE 5 47K UNE C CN CX 2
38. Cathode output 1 226 90Vpp CURRENT Voc SOURCES inverting EVEL input 3x SHIFTER 2 GND MGA968 Block diagram one amplifier shown v vov NN 11 Chassis Service Manual i POWER MOS AND HORIZONTAL DRIVE TRANSISTORS SPECS STH3N90 STP3N90FI N CHANNEL ENHANCEMENT MODE POWER MOS TRANSISTOR TYPE Vpss RDS on STH5N90 90V lt 2 40 53 A STHSN90FI 900V 240 3 5 A MY TENES Typical RDS on 3 9 Avalanche Rugged technology 100 avalanche tested Repetitive avalanche data at 100 Low input capacitance ow gate charge as Application oriented characterization APPLICATIONS High current high speed switching Switch mode power supplies SMPS G 1 Consumer and industrial lighting DC AC inverters for welding equipment and DIAGRAM uninterruptible power supply UPS ABSOLUTE MAXIMUM RATINGS E Symbol Parameter Value STH3N90 STH3N90FI Drain source Voltage Vas 0 900 Drain gate Voltage Ras 20 900 Drain Current continuous Tc 25 C 3 2 Um Drain Current continuous at To 100 C 2 Drain Current pulsed 13 Total Dissipation at T 25 Derating Factor Insulation Withstand Voltage DC Z2 Viso Tstg Storage Temperature o c oc
39. I I 1 1 I 1 I t I I I 1 I I I 1 L m m m am ty Block diagram of PCA84C841 UU 42 PT 11 Chassis Service Manual Power Supply With TDA4605 The IC TDA 4605 controls the MOS power transistor and performs all necessary regulation and monitoring functions in free running flyback converters Features Overload protection Burst operation under short circuit conditions Loop error protection Switch off if line voltage is too low For Service Manuals Contact ine voltage compensation of overload point MAURITRON TECHNICAL SERVICES Soft start for quite start up 8 Cherry Tree Rd Chinnor Chip over temperature protection On chip parasitic transformer oscillation suppression circuit Email enquiries mauritron co uk TDA 4605 3 ST BY Information Input Concerning Secondary Voltage 0 4V Information Input Regarding the Primary Current 1V Input for Primary Voltage Monitor 2 1V Ground 0V Output 0 8V 8V 10Vpp 6 Supply voltage Input 12 Input for Soft Start and Integrator Circuit 1 1V Reference Primary Voltage typ Supply Voltage Current Output 3V Monitor Reproducer Stage and Current Limit Starting Vemin Vea Vee a enarator Regulating Zero amp Overload Amplif
40. Test output D Positive supply voltage 10V R Y output dV B Y output 1 3 Q Not connected Not connected Not connected Not connected Sandcastle pulse input e 1 gt E OF pr ja CLOCH PLLrer 1 100 nF 220 nF 1 8 TUNING TUNING TDA8395 CLOCHE DE CVBS FILTER PLL EMPHASIS H INTERFACE CONTROL 2 ea el fre IDENT SAND Block diagram 40 FICATION STAGE R Y R Y 11 Chassis Service Manual a 1 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 Tel 01844 351694 Fax 01844 et er Email enquiries mauritron co uk CTV 352 S for stereo and CTV 322 for mono are a voltage synthesis tuning system with on screen display OSD of all relevant control function Analog picture settings are controlled by 4 on chip digital to analog con verters Sound volume can be controlled by the fifth on chip digital to analog converter in mono only system Full sound volume bass treble balance in German Stereo and Nicam configuration and Teletext can be controlled via the 12 bus using a sound processor and teletext decoder This controllers can control up to two scart plugs 11 time constant control output 12 Ext int audio video source control output 5 17 Keyboard scan line input
41. 1 DC Voltage to define RGB High Level Fast Blanking Output TTL Level Open Drain Contrast Reduction Output O 5 Serial Clock Input 7 Serial Data Input Output To be connected to VssD To be connected to VssD be connected to VssD 1 PLL Time Constant Selection Oscillator Output 13 875Mhz 4 Oscillator Output 13 875 Mhz aus 5 Oscillator Ground 26 Analog Ground 7 Grounded to E 28 To connect Black Level Storage Capacitor O cO NO 25Hz Output Field synchronized for non interlaced display Open Drain Foreground Information Output PT 11 Chassis Service Manual 11 Chassis Service Manual Stereo Part TDA 9840 is used as German Stereo decoder and SAA 7283 is used Nicam decoder bus interface On outputs of G S and Nicam decoder IC s TDA 8425 sound processor is used Also this IC controls l C bus TDA 9840 7 PINNING l C bus data input output PIN VOLTAGE 5Vpp AGC capacitor of pilot frequency amplifier D Identification low pass capacitor t DC loop capacitor Pilot frequency input input voltage of reference voltage 1 2 Vp AF input signal Vi from 1st sound carrier 8 AF input signal from 2nd sound carrier 9 AF input signal Vig NICAM or AM sound standard L AF input signal Vi4 NICAM AF output signal SCART AF output signal Voz SCART
42. 1109 m 33 I 688 5 1 m C921 470nF a 656 CB712 2 1100x 20 BAUSTEIN SCHALTUNGSPLAN 20817 Raiz C530 IF ONLY FOR PAL I J950 6 69251 NICAM BOARD CIRCUIT DIAGRAM NICAM BAUSTEIN SCHALTUNGSPLAN 1201 10461030 15 LT R201 2708 i aw 3X3 1 4 FERA C x eti BELT gt 1 2 5203 BASIC BK 1 2 I 1 1 I R240 NE 1 1 25 t i R208 a 8206 172 D um Vm a 22 zm 1 1 4 500A 0202 7 CRT BOARD CIRCUIT DIAGRAM CRT BAUSTEIN SCHALTUNGSPLAN m aoe 1 8 w gt 4 4 Coes 10pF ONLY FOR 1 PAL I J950 PAL BG 69251 NICAM BOARD NICAM BAUSTEIN For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk CRO3 4 CB12 C815 0090990 C898 Caes C809 E nte o mulls ebd va aa 500 er pene C901 e 8 e 5 F902 F905 F901 E 9 ceo NICAM BOARD NICAM BAUSTEIN GERMAN STEREO BOARD GERMAN STEREO BAUSTEII L BOARD NICAM L BAUSTEIN 974 C977 C978 COCHO P951 875 a a 0983 a 06 E Ja CZs 803 F95
43. 5 _ RESISTOR 680K 1 5 030108712311 RESISTOR 12K 1W 5 _ 030140610101 IRESISTOR 100R 1 6W 5 RESISTOR C F 100R 1 6W 5 R106 RESISTOR C F 100R 1 6 5 RESISTOR 1008 1 6W 5 ___ RESISTOR 1008 16W 5 ____ RESISTOR 100R 1 6W 5 RESISTOR 100R 1 6W 5 RESISTOR 100R 1 6W 5 RESISTOR 1008 1 6W 596 RESISTOR 100R 1 6W 590 RESISTOR 100R 1 6W 5 030140610101 RESISTOR 100R 1 6W 5 030140610201 RESISTOR 1K 1 6W 5 T Um nt ae m nmm rm nr nm nm D mr mnm mw ow rc rc mw Ww X Wu mm T m v For Service Manuals Contact gen TECHNICAL SERVICES Cherry Tree Rd Chinnor Page 2 Oxon OX9 4QY Tel 01 844 351 694 Fax 01844 352554 Email enquiries mauritron co uk 7 10934 FIDELITY CTV 3014 71 u PART NO COMPONENT RESISTOR 1K 1 6 596 RESISTOR 1K 1 6W 5 RESISTOR C F 1K 1 6W 5 _ N RESISTOR 1K 1 6W 5 RESISTOR 1K 1 6eW 596 RESISTOR C F 1K 1 6W 5 RESISTOR C F 1K 1 6W 596 RESISTOR C F 1K 1 6 5 ___ RESISTOR 1K 1 6W 5 ____ _ R323 _ RESISTOR 1K 1 6W5 _ 336 030140610201 RESISTOR C F 1 6 596 RESISTOR 1K 1 6W 5 030140610311 RESISTOR 10K 1 596 ___ RESISTOR C F 10K 1 6W 5 030140610311 RESISTOR 10K 1 6 5 ____ RESISTOR
44. Bit 1 P0 1 L 6 8 bit Port Bit 2 0 2 OV 5 8 bit Port 3 P0 3 4 18V OV 8 8 bit I O Port Bit 4 PO 4 j 9 8 bit Port Bit 5 0 5 8 51 VO Port Bit 6 58V 8 bit Port Bit 7 7 0V Interrupt input Test Input 0 0 2 OV Test Input 1 E 02 _ OV j Ground s 10 OV Oscillator Input 246 246V 1 Oscillator Output 246 246 Reset Inout 7 8 bit Port Bit 0 P1 0 7 8 bit Port Bit 1 P1 1 8 bit O Port Bit 2 1 2 a ae 8 bit I O Port Bit 3 P1 3 e 8 bitllOPortBIt4 Pl 4 8 54 Port 5 P15 24 8 bit VO Port Bit 6 P1 6 5 8 bit Port Bit 7 P17 00002000 4 bit Port Bit P2 0 1 1 For Service Manuals Contact J MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor 2 9 4QY 01844 351 694 Fax 01844 352554 Email enquiries mauritron co uk 2 4 t 55 UL UL Ub Ub u UU amp W OG ono ow Qo E ER Qu ER STV 5346A PINNING 1 Composite Video Signal Input through Coupling Capacitor Master Slave Selection Mode 5V STTV LFB FFB Polarity Selection i Composite Sync Output Line Flyback Input Field Flyback Input 7 Digital Ground Video Hed Signal Video Green Signal 10 Video Blue Signal
45. Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor 9 4QY xon Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk CHASSIS REPLACEMENT PART LIST 10934 FIDELITY CTV 3014 FIDELITY CTV 3014F mE PRODUCT NO 10934 aT ENGLAND LT mr 0 STEReo NO PREMIER 003 REMOTE CONTROL 36 M 11 COMPONENT ______ CABLE 2P 1SKT 5 _ CABLE 2P 1SKT 35CM DEG _ 002021000301 CABLE 2P 1SKT 35CM S B DEG SGS CABLE 3P 1SKT 40CMPRE 28SM1YPT 002042000031 CABLE 4P 3P 2SKT 38CM SM1 002052000401 ICABLE 5P 2SKT 38CM SM1 CABLE 2P 1SKT 50CM HOP TWETTER CABLE 2P 1SKT 40CM VERT CABLE 2P 1SKT 40CM BROWN BLACK CABLE 2P 1SKT 40CM HORZ CABLE 2P 1SKT 40CM RED WHITE _ CABLE 4P 1SKT 40CM PRG VOL YPT CABLE SINGLE ICICOK 7 0 25BLACK POWER CABLE PAL 500UH CABLE 24 0 20 300EMC14 28 LUMA _ SILICON ISALATOR TO 220 BEAD ISALATORTO220BBH TO22DBH BRACKET CRT 14 BUTTON ON OFF 14 003 BACK COVER STICKER FIDELITY CTV3014F HOLDER CABLE 0 5MT 2 LOGO FIDELITY 14 013283020760 SPRIN OF BUTTON ON OFF 002 202 003 Y PRM _ PRM 013610711400 GRIL SPEAKER 14 TLFK 003 SM 3 SMTRK 013926020540 BRACKET ON OFF GDE 001Y 030010610211 RESISTOR C F 1K 1 8W 595 030010627421 RESISTOR 270 1W 5 RESISTOR 100R 1 4W5 ____ _ 8057 030020610131 RESISTOR C F 100R 1 4W 5 063 RESIS
46. DU TT 2 9 1 0 gt 2 hu GERMAN STEREO BOARD GERMAN STEREO BAUSTEIN 302 T974 C977 C976 ty P951 CSTs 632 Q9e3 e tO 2 5 Gem F954 F953 ces2 973 28821 4 2981 JSTEIN 6527 10502 R505 L x 507 4505 R 4509 4508 10501 8517 95TA057 FASTEXT BOARD FASTEXT BAUSTEIN CRT BOARD CRT BAUSTEIN AUSTEIN CRT BOARD CRT BAUSTEIN SCL GND SDA S903 S901 12v b 5 5 2 L LPAIME 5 GND EX AUD m 43 fe 5 ede GREEN eiue A Seed HOM NES er 4 f COE PM EF m E E 907 4692 _ 059 tr 8692 _95TA058 X SANT DOUBLE SCART BOARD DOPPEL SCART BAUSTEIN For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree 24 Chinnor 77 v Tel 01844 35506 ta 2 2 neneng 008 9 io 1801 SAA7283 830 2 2uF 1000 978 100pF 4 811 880 1 0 047uF 1 8 C843 _ I s 12008 Slt Tu i gota 825 28 Lu L LPRIME 3
47. Fax 01844 352554 Email enquiries mauritron co uk b y i i 1 1 w w Ka v w 9 15 64146 AG eT X 9 r as lt J 3 I A91 lt Em Tree Chinnor QY 4 Fax 01844 352554 s mauritron co uk 5169 RON TECHNICAL SERVICES Oxon OX9 4 Email enquirie For Service Manuals Contact 8 Cherry Tel 01884 3 PT 11 Chassis Service Manual MAURI Zn 391 18015 5 7 am gt E Ll uc anor 8068 300 geo gt lt vn no 300 ce T 8084 8 lt 808 1 Qt s TNO e CS 4 Ht AST YT SvHld chs OG UG IK UL UL UL UL UL UL Ub UL UL PT 11 Chassis Service Manual 5 HORIZONTAL DRIVE CIRCUIT The horizontal drive pulses obtained from pin 37 of the TDA8362 are connected to base of 0601 25 1573 via R602 0601 drives Q602 BUH515D via the drive transformer TR602 T8601 is the transformer 115 V is switched 0602 and TR601 generates both FOCUS G2 voltages required for CPT and 170 V Heater voltage and 26 V vertical supply voltage The anode beam current information from pin 7 of TR601 is used for reducing contrast at too high beam currents in order to stabilize the voltages deriv
48. STEREO 403 a 5 e gt 25888 7 MONO 7 8 9 10 4 12 13 38 51455414 12 5V TE AGC lt N JZ 1101 V DEFL Y KE An Pg 10 8362 TXT PAL SECAM cis l cise Y 63 0629 C Z 2 a x 39 s 7 1096 to O 4 B Y OUT I 25 R G B SHIFT 5 TTSW AMTSCHALTPLAN oc mWm P AN 5101 5v 4 5 5M AV SW SPEAKERS EX AUD 5403 GND D Bis GND MONO gt 5 INTVID_L LPRIME 4101 J102 4103 7 ES 5102 INT VID TV S L TV S R AV 0 R SYS SW SND IF1 IF2 Oxon OX9 4QY a gt so 01844 351694 Fax 01844 352554 a Email enquiries mauritron co uk me B G SND VERT SUP H DAV 1604 TDA3653 s i 1 SW SND __ A134 6 8K V SYNC a AV 8133 22 25 cada s 5 pe or _ AQ 2 2 3 a rg Ra cH ta ar a A 5 p RIMIS m a m onem 3 apa atr Le a A Ra fa D 235 2 2 ene AR rra ME ai lr e an me ee pret cer ten Sees E
49. Voltage 0 0 26V TDA3653B TDA3653C VOLTAGE FLYBACK STABILIZER GUARD GENERATOR 8 CIRCUIT CURRENT SOURCE 6 5 OUTPUT STAGE PROTECTION 7287642 2 Block diagram deflection coil to 62 Wow OX X 33 UA OA IX OD UE UE UE UU UE Ub w 11 Chassis Service Manual RAPERE UU S Video Output Amplifier On CRT Board TDA 6103Q is used as video output amplifier The TDA 6103Q includes three video output amplifier intended to drive the three cathodes of color CRT Features High Bandwith 7 5 Mhz typical High slew rate 1600 V us Simple application with a variety of color decoders Only one supply voltage needed internal protection against positive appearing CRT flashover discharges One non inverting input with a low minimum input voltage of 1V For Service Manuals Contact Thermal protection MAURITRON pon Chinn Controllable switch off behavior 8 Cherry T oo Ch Tel 01844 351694 Fax 01 844 352554 Email enquiries mauritron co uk TDA 6103Q PINNING _ PIN VOLTAGE Inverting input 1 1 Inverting input 2 1 0Vpp Inverting input 3 _ Ground fin 3s Non inverting input 2 _ 1 8V 6 Supply 180 Cathode output 3 8 Cathode output 2
50. duty cycle 15 Pulse width limited by safe operating area Safe Operating Areas For TO 218 6034260 Ip PES ii milii i 10008 TH v LSA LRS 8 6 J HH an ae EN 69 0 LL 10 MH operation di 8 114 H 31 41 H43 THERE H 7 2 66 Safe Operating Areas For ISOWATT218 GC34270 Ip LI i gt 3 aa ri FF eee 1 ME Ir IT tH ae EY I DE ES _ SUN STR 1 S pda L THI gt T 10 8 SH bl 4 Earn i 2 idi 19107 17 11 Chassis Service Manual BUH515D CRT HORIZONTAL DEFLECTION HIGH VOLTAGE NPN FASTSWITCHING TRANSISTOR High breakdown voltage capability Fully insulated package easy mounting Low saturation voltage High switching speed Complete characterization of power losses and switching times as a function of negative base current for optimum drive APPLICATIONS 21 Horizontal deflection stage standard and high resolution dis plays for TV s and monitors INTERNAL SCEMATIC DIAGRAM C
51. output 5 29 LC oscillator output for OSD 5V 30 Test input connected to ground 31 Oscillator input 10 2 crystal Oscillator output Power on reset input output 34 Horizontal coincidence input V TV OV AV 35 RC 5 remote control input Mono Stereo or language 1 2 output r tili dium wie A 2 was TER Tum pu run PER rar Par re Fm ram ren ren rw rw lt _ 41 sa 11 Chassis Service Manual PINNING PIN VOLTAGE 37 Sound effect control output 38 System select output 39 C bus clock signal output 5V and 5Vpp 40 C bus data signal output 5V and 5Vpp 41 Standby On control input output OV 5 5V 42 5V supply voltage input VOW3 DOSC2 HSYNCN VOB VOW2 00501 USYNCN 8 BIT TIMER COUNTER ON SCREEN DISPLAY GENERATOR VU wow w ou oU LX LOL OR E PARALLEL 840 8817 1 0 10 PORTS CORE on eB ee ee KL PWM 15 SDA SCL Block diagram of PCA84C641 INTN TO VOW3 005 2 HSYNCN VOB VOW2 00501 USYNCN 8 BIT TIMER COUNTER ON SCREEN DISPLAY GENERATOR T8 BiT INTERNAL BUS PARALLEL PAC84CXX VO PORTS CORE 8BIT 1 0 I 1 i I
52. pA ID on Vag 10V Ip 17A Vag 10V Ip 1 7 A Vps gt x _ VGS 10 V Static Drain source On Resistance On State Drain Current DYNAMIC Symbol Test Conditions Typ T Unt Ifs 7 Forward gt PDS on max 1 3 5 S Transconductance ID 17 Input Capacitance 25 V f 1 MHz Vas 0 pF Output Capacitance Ciss Coss Reverse Transfer Capacitance EU UY UY UY UE DE UD see test circuit figure 3 Symbol Parameter Test Conditions ta on Turn on Time Vpp 30 V tr Rise Time RG 50 Q di dt on Turn on Current Slope Vpp 640 V RG 50 Q Total Gate Charge Gate Source Charge 2 Drain Charge Off voitage Rise Time Fall Time Cross over Time Source drain Current Source drain Current pulsed Reverse Recovery Time Reverse Recovery Charge Reverse Recovery Current see test circuit figure 5 400 i Test Conditions 640 V lp23A 500 10V see test circuit figure 5 Test Conditions lop 3 di dt 100 A us Vpp 80 V see test circuit figure 5 Tj 150 G PT 11 Chassis Service Manual Vas 10V Vas 10V Pulsed Pulse duration 300 us
53. setting of 6 dB The de emphasis capacitor has to be connected externally The non controlled audio signal can be obtained from pin 1 via a buffer stage The amplitude of this signal is 350 mV RMS The TDA8362 external audio input signal must have an amplitude of 350 mV RMS The audio video switch is controlled via the chrominance input pin On stereo models On stereo models the adjustable sound output pin pin50 is used for mono sound An external sound IF cir cuit TDA3845 is used for NICAM B G stereo systems For NICAM L stereo system TDA4470B Sound IF IC is used so that obtain AM sound and NICAM I sound carrier On German Stereo system TBA120U is used as FM demodulator for second sound carrier SYNCHRONIZATION CIRCUIT The sync separator is preceded by a voltage controlled amplifier which adjusts the sync pulse amplitude to a fix level The sync pulses are then fed to the slicing stage separator which operates at 50 of the amplitu de The separated sync pulses are fed to the first phase detector and to the coincidence detector The coinciden ce detector is used for transmitter identification and to detect whether the line oscillator is synchronized When the circuit is not synchronized the voltage on the peaking control pin pin 14 is LOW so that this condition can be detected externally The IC 8362 contains a start up circuit for the horizontal oscillator When this feature is required a current of 6 5 mA has to be sup
54. the amplifier characteristics do not play an important role up to certa in frequencies The device needs only one power supply voltage M contrast to previous types of DMOS video ampli fiers the TDA 61030 does not need second supply voltage 12V so it saves one wire from motherboard to CRT stage As the TDA 8362 has no white point adjustment and no black current set up two adjustments are required for gain and three adjustments for black setting For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Chinnor 9 4QY Tel 01844 351694 01844 352554 Email enquiries mauritron co uk 20 4 u UL W W LRO iW U K UE OE UL UL UL UL UL UL UL NNNM M GU NNNM in ee is VERT PULSE E E 27 JUMPER 8 2X PT 11 Chassis Service Manual B10 2 811 BCS47B LO 5 Bi2 lt B13 000 f 814 27 114148 R_IN Jp 4 G_IN CIC ain 4 lt FB lt q SIMPLE TEXT VIDEO S451 SIMPLE TEXT PART CIRCUIT DIAGRAM 11 Chassis Service Manual THE DETAILS OF THE BOARDS Mother Board Contains TDA 8362 multistandard TV processor CTV 322 CTV 352 S micro controller with OSD TDA 4605 Switch Mode Power Supply Controller TDA 46
55. 021949288619 3 be 82108146 10 0 ONLY FOR M1 PAL J950 PAL 8G 69251 VOU 3OARD CHASSISPLATE 1828 2929 C840 4 pom oe ee eee e yw E Ee 4 2 gt 2 Mi AES D e d M 2 R 8 ntt M i ki ri X Hs 74 B oz le 3 S C i PEN UN 3 i b 2 1 2 08 A 18 m 5 Mm lt gt 4 n hc J 4 isi wn gt br 5 T 7 ate i us 4 ix e 45 3 3 n 3 4 PN 2 i 24 2 ae E x P T n 1 a 1 m 5 m mod 5 Toce e o cie c F 5 at 45 AA T MP QUE qaa q Ln t gt x 4 we RI EXIT TEE 42 4 4 6 81 5 G DAIVE 8 081 e P205 e P201 C203 6202 d CES P202 IP 10550 PCFB5EB2 1 STTY ALF8 ie aD N S
56. 048321423201 DIODE RECT 1N4007 00 41 _____ __ 0004 DIODE RECT 1N4007 DO 41 _____ T Doi DIODE ZNR 33V ZTK33B DO 35 DIODE ZNR 6V2 BZX55C DO 35 DIODE ZNR 9V1 BZX55C DO 35 DIODE LED LTL4221N RED 3MM _ LE Qs CRYSTAL 10 000 MHZHC49U ____ CRYSTAL 4 433619 MHZ HC49U x402 065001003820 INSTRUCTION MANUAL FIDELITY CTV3014F _ MN FUSE 2 250V 5 20 TIME LAG _ ANTENNA LOOP 14 PAL I _ s UN 14 A33LPE02X01 EKRANAS __ 075020800031 5 CRT K HPS0359 01 040 29M wam 075030411011 4P 3P HORZ VERT 075030511000 CONN 5P HORZ VERT KLTSZ 21 05 ___ 075030511000 CONN 5P 2 KLTSZ 2105 A amina snn AP 075040210010 SOCKET SCART 14720721 Har dium amu apr 10 gr era CONN VERT 3 01 CONN 4P HORZ VERT KLTLI TMK2004 SWITCH POWER GDE 310 04 137 1 BATTERY 1 5V GREENLINE __ TRF HRZ DRIVE AT ETH 20Y20BY _ TRF SMPS 14 20 21 12V 2 2 TRF FBT 14 20 21 PT W BLEEDER _ COIL 10UH 5 0 16A AXIAL FIXED 608000000021 10UH 596 0 16A AXIAL FIXED _ Page 9 eee 4 7 V 297 5 5597 SS 10934 FIDELITY CTV 3014F lt PART NO COMPONENT POS COIL 10UH 5 0 16A AXIAL FIXED _ 2211
57. 05 gt COIL 3 3UH 5 0 21A AXIAL _ _ 1222 COIL 150UH 596 0 039A AXIAL FIX NEC COIL 8 2UH 5 0 165A AXIAL FIX L1C3 COIL 8 2UH 5 0 165 AXIAL FIX 1652 VARIABLE 38 9MHZ 15 2095 1107 608380002361 COIL CHOKE 150UH 10 0912151 LO20 608380002361 CHOKE 150UH 9 610PK0912151X L602 2 DEGAUSSING 14 CPT COIL 12UH 5 0 15A AXIAL FIXED _ 1301 _ COIL 1UH 5 0 27A AXIAL FIXED _ L104 COIL 10H 5 0 274 AXIAL FIXED 1771238 COIL 1UH 5 0 27A AXIAL FIXED 1231 P LINE FILTER 2 75MH ELF 18D615 x 7001 PREAMPLIFIER TSOP1136 2 SPEAKER 168 3W 5W 50 90 ___ TRIMPOT 10K 0 1W 3096H ADJ5 2 5 Vo 611180011031 TRIMPOT 10K 0 1W 5 2 5 008121 TRIMPOT 10K 0 1W 3096 0 5 2 5 77054 TRIMPOT 500R 0 1W3096H ADJ5 2 5 053 gt TRIMPOT 500R 0 1W30 H ADJ5 2 5 _ 055 TRIMPOT 10K 0 1W 30 V ADJ 5 5 _ TRIMPOT 10K 0 1W 30 V ADJ 5 5 _ P102 TRIMPOT 2K 0 1W 30 V ADJ 5 5 _ _ TRIMPOT 500R 0 1W30 V ADJ 5 5 _ __ 2602 TRIMPOT 0 1W 30 V ADJ 5 5 __ Pe TUNER TECC2949VG28C WSP SMSNG 1001 F 618004001031 10 100V 10 _ 0113 6 8 100V 10 0008 fa 4 7NF 100V 10 __ C101_ 1 4 7NF 100V 10 _ B x C131 4 7 100V 1096 _ 125 62 1 6 2 5 6607 _ 47NF 100V 10 6
58. 3N90F ISOWATT 220 TRS STP6N60FI ISOWATT 220 DIODE RECT BYD33D 500 81 i DIODE RECT BYD33D 500 81 DIODE RECT BYD33D SOD 81 DIODE RECT BYV95C SOD 57 DIODE RECT BYV95C SOD 57 ___ 048000000021 DIODE RECT BYV95C SOD 57 ___ 048000000021 DIODE RECT BYV95C SOD 57 DIODE RECT BYV95C 500 57 0023 048000000021 DIODE RECT BYV95C 500 57 __ DIODE RECT BYV95C 500 57 DIODE RECT BYV95C SOD 57 048100255121 DIODE ZNR 3V6 2 55 DO 35 048210411001 DIODE GP 1N4148 00 35 m For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Page 8 Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 3 Cr lt T T T T Tq TY Y T Tv r Y v n Dr TF T Pr PF TT TT TIT IT _ don n amp 10934 FIDELITY CTV 3014F COMPONENT POS 048210411001 DIODE GP 1N4148 00 35 mM __ 0308 _ DIODE 1 4148 20 35 ______ 17789171 DIODE GP 1N4148 35 DIODE GP 1N4148 DO 35 DIODE GP 1N4148 DO 35 DIODE GP 1N4148 00 35 _____ DIODE GP 1N4148 DO 35 DIODE GP 1N4148 DO 35 DIODE GP 1N4148 DO 35 DIODE GP 1N4148 DO 35 DIODE GP 1N4148 00 35 _ DIODE 134007 0041 Dooi DIODE RECT 1N4007 00 41 _____ _ 0002 DIODE RECT 1N4007 41 ____ j 0003 _
59. 4 351694 Fax 01844 352554 Email enquiries mauritron co uk x EI 4 P aes i V U AD IE UD UE IUE OE UE 000000007 11 Chassis Service Manual s OI_L _ JIzTS TBA120U The TBA120U is an IF amplifier with a symmetrical FM demodulator and an AF amplifier with adjustable out put voltage 1200 PINNING 1 AJM 11 12 13 14 Ground Mute Input resistance Supply current and the reference Adjustment voltage IF output voltage Tank to reference Adjustable output Tank to reference IF output voltage Positive supply De emphesize out SIF input SIF input PIN VOLTAGE 0 11 Chassis Service Manual rj Onn s v r I rT _Es T y Te TELETEXT PART Simple text stage consists of SAA 5254 Teletext decoder This is controlled bus Basically fastext stage consists two Fs STV 5346 Teletext decoder and CTV 974 Fastext controller with bus interface For List Mode a 2K EEPROM PCF8582 can be added Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 Tel 01844 351694 Email enquiries mauritron co uk PINNING 5V suppl 2 27 MHz crystal oscillator output 3 27 MHz crystal osci
60. 4 F953 508 10501 8517 w hH _ C852 CS73 EDE CB14 1858 854 P8S0 R518 EE t a caes 1813 I9e2 C933 213 to 216 ISc us 29045848 C840 GERMAN STEREO BOARD GERMAN STEREO BAUSTEIN 974 C977 C976 COCHO CS S a e m O 198 F954 F953 e 3881 F961 852 C973 9 81 1 814 tese case P850 siet 4506 10501 38216 C_ R505 06 A517 J524 CRT BOARD CRT BAUSTEIN DOUE 1 ABOO di 10R z 1 0802 1 C803 100nF uE 3 4 5 5 984 6804 47 T Edd i 7 501 548 a f poe CB00 220nF Cm Ha RT BOARD CRT BAUSTEIN 13 C933 54 28 R821 Mal lise Lej Me 2 0808 22 4 810 2 2uF 5 gt 16 6 22uF o lu pun 17 100pF RBO1 RE En 047uF 1 8 C979 a s903 2 3 901 NICAM L BOARD CIRCUIT DIAGRAM NICAM L BAUSTEIN SCHALTUN Service Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Chinnor Oxon 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk u
61. 5 R209 R210 030050682321 RESISTOR C F 82K 1 2W 5 RESISTOR FUSIBLE 0 22R 1 2W 5 R021 RESISTOR FUSIBLE 0 22R 1 2W 5 1 2022 RESISTOR FUSIBLE 0 22R 1 2W 5 026 RESISTOR FUSIBLE 0 22R 1 2W 5 R611 RESISTOR FUSIBLE 0 22R 1W 5 RO20 RESISTOR FUSIBLE 0 228 1W 5 R023 RESISTOR FUSIBLE 0 228 1W 5 R647 RESISTOR 3 38 1W5 R645 RESISTOR C F 47K 1 5 ___ R024 RESISTOR 680K 1W 5 __ 5 RESISTOR 12K 1W 5 RO25 RESISTOR 10R1 6W5 NONFLMB R504 RESISTOR 10R1 6W5 NONFLMB R506 RESISTOR C F 10R1 6W5 NONFLMB 508 RESISTOR 10R1 6W5 NONFLMB R806 RESISTOR 100R 1 6W 5 _ 2502 RESISTOR 100R 1 6W 5 R503 RESISTOR 100R 1 6 5 ___ R516 RESISTOR 100R 1 6W 5 _ R517 RESISTOR 100R 1 6W 5 1 R804 RESISTOR C F 100R 1 6 5 0 R805 RESISTOR 100R 1 6W 5 _ R812 RESISTOR 100R 1 6W 5 R911 Tu RESISTOR C F 100R 1 6W 596 8912 RESISTOR C F 100R 1 6 5 R104 RESISTOR 100R 1 5 RESISTOR 100R 1 6W 5 4 RESISTOR 100R 1 6 5 __ x RESISTOR C F 100R 1 6W 5 _ RESISTOR C F 100R 1 6W 596 x 2 rY 13965 AMSTRAD 3121N d died PART NO COMPONENT RESISTOR 100R 1 6W 5 _ RESISTOR C F 100R 1 6W 5 _ RESISTOR 100R 1 6W 5 _ RES
62. 56 00 001 215 12 200 062 202 119 510 091 000 960 19 089 829 019 500 009 114 019 10 022 020 ESZ 10 062 569 119 510 120 005 200 160 PSS 825 200 100 021 90 01 020 926 10 096 671 01 600 020 2 001 506 062 012 iiS SIG 005 kl 120 200 80 605 90 019 519 500 062 017 116510 010 201 506 06 00 198 00 29 100 Cit 00 026 591 201 506 i X 6 z MINDS 60 X6 E MISD 1 43A00 NOVA 82d 18011 Fi X 62 MINDS OMYO8 NIYW SISSYHO NIYW INS d i 1451 X d 38WYO 38n1 4 33887 GE X MINDS 38011 330 38Wv2 3GONY 1 5 59 67 MIAD 1551 X JQWVD 824 13 4 438834 NODING 1351 IBWVD 9X 6 Z MIND 82d dWv1yd 38WYO 433MOd S 6X 67 MINDS J8WY2 1JO NO J38Wv2 YIMOd HDLIMS 4342V38 HOLIMS BONN S X 67 AA3425 161 42 39 33Xv3450001 138 1 13N Yd 1 S 6 X 67 3425 1 AWXOONIM 3 201 TINYVd YOXINOD m e EE 39106 ALO BS 4 i d G 4 9 9 09 3121 N Exp View Description 1 Front cabinet Speaker Grill Right Speaker Left Speaker Felt Logo C Po Oo Acyrilic Window 7 Multiple Button 8 Speaker 9 Main Board Assy 10 Power S
63. 605 10NF 100V 10 C133 220NF 63V 10 5 ___ 6304 620004072241 220NF 63V 10 SMM C632 C302 620004083341 CAP MKT 63V 5 100NF 275 20 RFIX2 6002 620013054741 470NF 250VDC 5 C606 470NF 250VDC 5 C608 h 620013081041 100NF 63V 5 _ 2105 620013081041 100NF 63V 5 7 5106 CAP MKT 100NF 63V 5 Cie 100NF 63V 5 __ C111 1 gt 100 63V5 ______ CAP MKT 100NF 63V 5 100NF 63V 5 _ 041 100NF 63V 5 __ _ 2228 2 Mara atina D d Pid Service Manuals Contact AURITRON TECHNICAL SERVICES Page 10 8 Cherry Tree Rd Chinnor Oxon 9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 77 10934 FIDELITY CTV 3014 a J 640 a PART NO COMPONENT 620013081041 MKT 100 63V 5 620013081041 CAP MKT 100NF 63V 5 621003133331 CAP KT 33NF 630V 5 CAP MKT 100NF 50V 10 100NF 50V 10 _____ 100NF 50 10 220NF 50V 10 ______ 220NF 50V 10 621004003321 3 3NF 100V 10 470NF 275VAC 10 RFIX2 REMOE CONTROL TM36 M SKD MAIN CHASSIS 11 EKR TEKBAND COMPLETE CRT SOCKET 14 PT IHR
64. 65 Baseband Delay Line TDA 8395 Secam Decoder TDA 7056A Audio Output Amplifier for mono TDA 7057AQ Audio Output Amplifier for stereo gt PCF 8582 2K EEPROM gt TDA 36538 Vertical Driver gt SAA 5254 Simple Text Processor gt gt V Y Y Y TDA 9830 AM Demodulator LM 317 Voltage Regulator LM 7805 Voltage Regulator LM 7808 Voltage Regulator gt Tuner gt Infrared Receiver gt Horizontal Deflection Part gt Degaussing Circuit gt 4 push buttons p V v Stand By Led gt Main Switch gt Scart Jack gt Extension Connectors For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY CRT Board kuy ma gt TDA 6103Q Video Output Amplifier ECKEN orc s F T mee w w usq rara W AW UG Go UE s w E w UL UL W PT 11 Chassis Service Manual MERI m cc c Co n sn RR Extension Boards v Nicam L Board SAA 7283 QPSK Demodulator Nicam Decoder TDA 4470 B SIF and AM Demodulator TDA 8425 Sound Processor Nicam BG Board SAA 7283 QPSK Demodulator Nicam Decoder TDA 3845 SIF TDA 8425 Sound Processor German Stereo Board TDA 9840 Stereo Processor TBA 120U SIF TDA 8425 Sound Processor Fastext Board STV5346 Teletext Processor CTV972 Fastext Processor PCF8582 2K EEPROM Double Scart Board 74
65. 6W 5 _ RESISTOR 2 2K 1 6 5 i RESISTOR 22K 1 6W 5 _ _ ab RESISTOR C F 22K 1 6W 5 RESISTOR C F 22K 1 6W 5 _ RESISTOR C F 22K 1 6 5 _ RESISTOR C F 22K 1 6W 5 _ RESISTOR C F 22K 1 6 5 _ RESISTOR C F 22K 1 6 5 _ RESISTOR C F 220K 1 6 5 _ RESISTOR 2 2M 1 6W 5 RESISTOR 2 28 1 6W965NONFLM nr 7 154 RESISTOR CF 27K 160 5 R231 RESISTOR C F 27K 1 6W 5 _ _ _ R235 RESISTOR C F 27K 1 6 5 ___ R234 RESISTOR C F 27K 1 6 5 __ R317 RESISTOR C F 27K 1 6W 5 _R345 RESISTOR C F 330R 1 6 5 R501 RESISTOR C F 330R 1 6 5 R349 RESISTOR 3 3K 1 6W 5 R028 RESISTOR C F 3 3K 1 6W 5 R302 RESISTOR C F 3 3K 1 6W 5 R341 030140633201 RESISTOR 3 3K 1 6 5 _ R342 030140633301 RESISTOR C F 33K 1 6 5 __ _ R803 RESISTOR C F 33K 1 6W 5 1 R452 i Page 4 lt So aa M X U UU X uj A 4 woo pe 4 gt gt i i Mas o4 w d 3 13965 AMSTRAD 3121 _______ POS RESISTOR C F 33K 1 6W 5 _ R454 RESISTOR C F 330K 1 6 SX 191431 RESISTOR M F 3 3M 1 6W 5 _ R140 RESISTOR 1 2W 5 __ 8505 RESISTOR 390R 1 6 5 __ R027 RESISTOR C F 390R 1 6W 5 R108 RESISTOR 3
66. 6W 596 R629 RESISTOR 2 2K 1 6W 5 5 R635 _ RESISTOR 22 1 6 5 R669 030140622311 RESISTOR 22K 1 6W 5 _ 6109 RESISTOR C F 22K 1 6W 5 778146 RESISTOR 22 1 6 5 _ R346 RESISTOR C F 220K 1 6 5956 R325 RESISTOR C F 2 2M 1 6W 5 E R308 RESISTOR 2 2R 1 6W SNONFLM 18154 _ RESISTOR C F 2 2R 1 6 5 _ R408 030140627311 RESISTOR C F 27K 1 6W 5 _ 8317 030140627311 RESISTOR 27K 1 6W 5 R345 _ RESISTOR 330R 1 6W 5 _ R027_ RESISTOR C F 3 3K 1 6 5 22 _ R302 RESISTOR C F 3 3K 1 6W 5 R341 RESISTOR C F 33K 1 6 56 8342 RESISTOR C F 330K 1 6W 5 __2143 RESISTOR 3 3 1 6W 5 __ 2140 RESISTOR C F 39R 1 2W 5 __ R605 RESISTOR 390R 1 6 5 _ 8105 RESISTOR 390R 1 6W 5 _ R352 RESISTOR C F 3 9K 1 6W 5 R620 RESISTOR C F 39K 1 6W 5 6 _ _ 2311 RESISTOR 39K 1 6W 5 ___ 8613 030140639411 RESISTOR C F 390K 1 6W 5 R672 _ RESISTOR C F 47R 1 6W 5 R008 _ 030140647011 RESISTOR 478 16W 5 ROOS _ RESISTOR C F 470R 1 6W 5 _ __ 8492 RESISTOR C F 4 7K 1 6W 5 8116 RESISTOR C F 4 7 1 6 5 _ _ R447 RESISTOR C F 4 7K 1 6W 5 M R318 RESISTOR C F 4 7K 1 6W 5 3 RESISTOR C F 4 7K 1 6W 5 RESISTOR C F 47K 1 6W 5 RESISTOR C F 47K 1 6W 5 030140647311 RESISTOR C F 47K 1 6W 5 RESISTOR C F 47K 1 6W 5 _ RESISTOR C F 470K 1 6W 5 RESISTOR C F 4 7R 1 6WS NONFLM RESISTOR C F 5 1R 1 6W 5
67. 90R 1 6W 5 352 RESISTOR C F 3 9K 1 6W 5 R620 RESISTOR C F 39K 1 46W5 R311 RESISTOR C F 39K 1 6W 5 RESISTOR C F 47R 1 6W 5 RESISTOR C F 470R 1 8 5 _ RESISTOR 470R 1 6W 5 __ RESISTOR C F 4 7K 1 6W 5 __ RESISTOR 4 7K 1 6W 5 R914 RESISTOR C F 4 7K 1 6W 5 _ R116 RESISTOR C F 4 7K 1 6W 5 RESISTOR C F 4 7K 1 6W 5 RESISTOR C F 4 7K 1 6W 5 da te a dat 030140647211 RESISTOR C F 4 7K 1 6W 5 3 RESISTOR 4 7K 1 6 5 R456 030140647211 RESISTOR C F 4 7K 1 6 5 _ RESISTOR C F 4 7K 1 6 5 __ RESISTOR C F 4 7K 1 6W 5 RESISTOR C F 4 7K 1 6W 5 RESISTOR C F 47K 1 6W 5 RESISTOR C F 47K 1 6W 596 RESISTOR C F 47K 1 6W 5 030140647311 RESISTOR 47K 1 6W 5 ___ RESISTOR C F 47K 1 6W 5 RESISTOR C F 47K 1 6 5 RESISTOR C F 47K 1 6W 5 _ RESISTOR C F 47K 1 6W 5 RESISTOR C F 47K 1 6W 5 RESISTOR C F 470K 1 6W 5 R138 RESISTOR 4 7R 1 6W596NONFLM R137 RESISTOR C F 5 1R 1 6W 5 6010 RESISTOR 5 6 1 6 5 __ _ R102 RESISTOR C F 5 6K 1 6W 5 R144 RESISTOR C F 5 6K 1 6W 5 R304 RESISTOR C F 5 6K 1 6W 5 __ _ R665 RESISTOR C F 5 6K 1 6 5 R666 RESISTOR C F 56K 1 6W 5 R156 RESISTOR 56K 1 6W 5 R622 RESISTOR C F 6 8K 1 6W 5 __ R115 RESISTOR C F 680K 1 6W 5 R806 R
68. ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit __ Collector Base Voltage lg 0 1500 VCEO Collector Emitter Voltage Ip 0 700 NINE VEBO Emitter Base Voltage I 0 5 Collector Current 8 Collector Peak Current t lt 5 ms 15 p Base Curent 32 Peak Current lt 5ms _ 8 Total Dissipation at Tc 25 C 60 Storage Temperature _ 65 to 150 _ Operating Junction Temperature Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries maurilron co uk 67 2 2 Tm m T m mv r mm m w m v wowo c Te vx T T T T 7 7 7 W TN THERMAL DATA Rthj case Thermal Resistance Junction case Symbol Parameter ICES Collector Cut off Current 0 Vcg 1500 V Collector Emitter e 48 lc SA 1 1 Saturation Voltage VBE sat Base Emitter Saturation Voltage Current Gain 5 5 RESISTIVE LOAD IC 5 lg 1 _ Diode Forward Voltage Ip 5 A Pulsed Pulse duration 300 ps duty cycle 1 5 Safe operating Areas GC32910 Ic V Se SS ES Anci mz 10 _ MAX 1045 PULSED FERE PULSE OPERATION Hi 1 SS Se 10ms meal H 1100 on eL LPS
69. ALO UU 33 4 d3Nni 12 MVS C r9 VOL 305532094 ____ 241 634315 2 19402 6IX6 yorg OEXG HO J USEAA 99 1HO Buuds SSEW egn Jauni 194205 WEIS 29 05 401 JI 4 5 4l 4ursjeeH ld ig 5 214 Ig pe p37 6 1981 Jeyudureajd uopnng 44 YOUMS uopng adyny IAY id juo yds 1119209 11044 ve 55 ze LE 06 62 82 22 92 92 2 52 02 61 81 41 91 91 L LL 01 60 80 70 90 60 50 20 10 585 83 lt 28 Cie 2 35 03 205 S9goHE 52034 gt 85 28 gt 9 oro x G x CC d u lt 5155842 11 14 PI IL ILI ILI IT X d S 9 32 Y X X X X X X 11 Chassis Service Manual HAAOO 10 4 q1aiHs 41 2 22 N H3AOO dOL 2 Q 13IHS 3 15 ANIS
70. AMIC FILTER COIL _ LINEARITY COIL FUSIBLE RESISTOR IW METAL OXIDE RESISTOR 1 2W METAL OXIDE RESISTOR 1 4 OR 1 6W CARBON FILM RESISTOR CERAMIC CAPACITOR POLYESTER CAPACITOR ELECTROLITIC CAPACITOR DIODE ZENER DIODE SWITCH JUMPER NET INPUT NET OUTPUT 1 PT 11 Chassis Service Manual a s J UU aE FAULT TRACING DIAGRAM POWER SUPPLY boo F P WOO a 0E UR UE UE Un Ob UL UL Ub Ub O Ub Ub Ub Ub UG W W U D1 02 D3 D4 YES C1 C2 C5 R1 01 NO short circuit Switched mode power supply defective 115 voltoge is missing or level is wrong Fuse eg 01 defective NO Voltage at drain Q1 YES Important Service Note Before changing a component in the Primary Mains Stage it is imperative that C5 is discharged by a resistor of approx 100 Ohm Attention A short circuit transistor T1 can be a result of a defective D20 R20 or the cut off components D5 R3 YES Voltage 5 1 3 lt 1V For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor 82 H YES Start up voltage Oxon OX9 4QY i1 6 Tel 01844 351694 Fax 01844 352554 08 lt 8V Email enquiries mauritron co uk YES 602 Start up varies BV
71. C 00 57 MEME nmn Rn ims Ge CSR 048000000021 DIODE RECT BYV95C SOD 57 048000000191 0 CAP BB405B 00 34 2 048100255121 DIODE ZNR 3V6 BZX55C 00 35 DIODE GP 1N4148 00 35 _ 0500 DIODE GP 1N4148 DO 35 _ _D800 DIODE GP 1N4148 00 35 _____ 0107 DIODE GP 1N4148 DO 35 _ 0230 DIODE GP 1N4148 DO 35 0231 DIODE GP 1N4148 00 35 D232 DIODE GP 1N4148 00 35 _ B EN DIODE GP 1N4148DO 35 _____ D311 DIODE 1 4148 0035 _____ _ D313 048210411001 DIODE GP 1N4148 00 35 _____ 0315 DIODE 1 4148 00 35 0316 DIODE GP 1N4148 00 35 0319 DIODE GP 1N4148 DO 35 ____ 0320 DIODE GP 1N4148 00 35 ___ _ D321 DIODE GP 1N4148 00 35 _____ 0325 DIODE GP 1N4148 DO 35 D393 048210411001 DIODE GP 1N4148 DO 35 _ 0401 048210411001 DIODE GP 1N4148 20 35 D451 048210411001 DIODE GP 1N4148 20 35 048210411001 DIODE GP 1N4148 00 35 048210411001 DIODE GP 1N4148 DO 35 048210411001 DIODE GP 1N4148 00 35 048210411001 DIODE GP 1N4148 DO 35 048210411001 DIODE GP 1N4148 DO 35 048321423201 DIODE RECT 1N4007 DO 41 048321423201 DIODE RECT 1N4007 DO 41 048321423201 DIODE RECT 1N4007 DO 41 048321423201 DIODE RECT 1N4007 DO 41 Sette s 0452 D454 70455 mmm ace D456 D457 D612 DOG 1 0002 0003 0004 Eben eerie nae I Eh s s ar ee w 048321423201 DIODE
72. C F 100K 1 6 5 __ R360 RESISTOR C F 100K 1 6W 5 LE 030140610411 RESISTOR C F 100K 1 6W 5 _ R663 030140610911 RESISTOR C F 1 1 6W5 NONFLMBL IR 1 6W5 NONFLMBL R802 030140610911 RESISTOR 1 6W5 NONFLMBL R908 030140612121 RESISTOR 120R 1 6W 5 8361 Service Manuals Contact a CEA TECHNICAL SERVICES erry Tree Rd Chinnor Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 13965 AMSTRAD 3121N PART NO COMPONENT T PoS ee 030140612311 RESISTOR C F 12K 1 6W 5 030140612311 RESISTOR C F 12K 1 6W 5 __ 030140612311 RESISTOR C F 12K 1 6 5 _ 030140612311 RESISTOR C F 12K 1 6 1 6W 5 _ 030140612311 RESISTOR C F 12K 1 6 lt 1 6W 5 RESISTOR 15K 1 6 5 _ RESISTOR 15K 1 6W 5 _ P RESISTOR 15K 1 6 5 _ RESISTOR C F 150K 1 6 596 RESISTOR 180R 1 6W 596 RESISTOR 180R 1 6W 5 _ b RESISTOR C F 180R 1 6W 5 _ 030140618201 IRESISTOR C F 1 8K 1 6W 5 _ RESISTOR C F 1 8K 1 6W 5 RESISTOR 1 8K 1 6W 5 RESISTOR 2208 1 6W 596 5 RESISTOR 220R 1 6W 596 RESISTOR C F 220R 1 6W 5 _ b RESISTOR C F 2 2K 1 6W 5 _ RESISTOR C F 2 2K 1 6W 5 3 IRESISTOR C F 22K 1 6 5 __ RESISTOR 2 2 1 6W 5 _ RESISTOR C F 2 2K 1 6W 5 _ RESISTOR C F 2 2 1 6W 5 __ RESISTOR 2 2K 1 6 5 __ RESISTOR C F 2 2K 1 6W 5 RESISTOR C F 2 2K 1
73. DA 503 XXXK 4 18 ect SCL 502 XXX amu 1111 5811 7713 8 Service 5 Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01 844 352554 enquiries mauritron co uk FASTEXT BOARD CIRCUIT DIAGRAM FASTEXT BAUSTEIN SCHALTUNGSPLAN R804 1008 ABO 1008 1800 0801 4 6 405 83447283 5905 590 AA PRIME GNO 129 5MHZ 2 n O O T A2 NICAM L BOARD CIRCUIT DIAGRAM A2 NICAM L BAUSTEIN SCHALTUNGSPLAN R BIAS G ORIVE 8 081 C203 6202 mul pe mass 5 8 452 6523 S P2 1 2 1 nF 4625 P2 0 8 4627 1 7 8 J528 P1 8 MZ P1 5 R 46530 8 fr 0500 2 144148 17 XTAL2 16 X502 3 4 SCHALTUNGSPLAN EV V 1850 44708 StF2 2 SIF2 1 b 5 g P OFFSET 1800 5 SAA7283 C573 a 109 229F o 160 x ar 3 1 38 SMHZ m 2 casa Am amp 2 2uF lt y x ESE 855 A 0 47uF na 75 42 ILEA 8857 2 L LPRIME R958 j 1908 4 25 Ticor 8936 C952 4 4900 C954 1 1nF 2 8990 1K2 12V y 0903 8871 T REF 2 ra C861 naoa C955
74. ESISTOR C F 75R 1 6W 5 R110 RESISTOR 758 1 6 5 __ R491 RESISTOR C F 75R 1 6 5 ae Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Page 5 Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 13965 AMSTRAD 3121N COMPONEN PO0 RESISTOR C F 758 1 6eW 5 R655 RESISTOR 758 1 6W 5 R656 RESISTOR C F 75R 1 6W 596 R658 RESISTOR 75 1 6W 5 1 R674 RESISTOR 7 5 1 6W 5 80121 RESISTOR 82R 1 6W 5 __ R107 RESISTOR 82R 1 6W 5 R602 RESISTOR C F 8 2K 1 6W 5 _ 1 RESISTOR C F 8 2K 1 6W 5 R455 RESISTOR C F 8 2K 1 6 5 __ R468 RESISTOR C F 8 2K 1 6W 5 R612 RESISTOR C F 8 2K 1 6W 5 Qi 030208610311 RESISTOR 10K 2W 5 R604 RESISTOR 68K 2W 5 ___ R002 RESISTOR M O 68K 2W 596 3 RESISTOR 1K 3W 5 _ 2609 030218610911 RESISTOR R 3W 5 _ RESISTOR W W 2K 5W 10 R603 RESISTOR W W 5 68 5W 10 _ T ROOT RESISTOR W W 5 6R 5W 10 _R607 THERM PTC 18R 30 3P 10 2 5MM RTO1 FILTER TRAP 6 0MHZ TPS 6 F102 FILTER CER 6 0MHZ 5 6 0 8 _ F104 FILTERSAWG9251MB GNIC AUDI _ F800 FILTER SAW J1951MINICINTCR 2101 50V 5 CH C835 CER 390PF 50V 10 SL C830
75. HC4053 DEMUX 23 PT 11 Chassis Service Manual ited x x aft as i t x x x 5 4 55 ne a gx C C201 R202 3K3 1 4W 1 4 2708 1 4 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxcn OX9 4QY Tel 01844 351694 01844 352554 Eniail enquiries mauritron co uk CRT BOARD CIRCUIT DIAGRAM i i i i i J 1 J 1 p b T T s w wF m w r r w 64 i w OU UE UE OR OX UR UL UL u X 8914 ZN 12V C O 7 902 2 5 o u a a 2 o E 28 aoa n 5 125 5 92 37 1 310341 T x g5 73130 5588 ot t 95 EM wo m 16588 lt H 55 6 T e Q P m 15588 x we 2000359 33A Esau 9c m m m 1 NI 70013 9 9 TNI 220NF 5262 Jn 8 411 0262 34007 6763 rt INOF ST TDA9840 age
76. ISTOR C F 100R 1 6W 5 RESISTOR 100R 1 6W 5 _ 030140610101 RESISTOR C F 100R 1 6W 5 5 1344 030140610101 IRESISTOR 1008 1 6W 5 x R457 r O RESISTOR 100R 1 6W 5 _ R475 RESISTOR 100R 1 6 596 _ TRESISTOR 1008 1 6W 5 RESISTOR 1K 1 6W 5 RESISTOR C F 1K 1 6W 5 RESISTOR C F 1K 1 6W 5 ____ RESISTOR 1 1 6W 5 ____ RESISTOR 1K 1 6W 5 030140610201 RESISTOR C F 1K 1 6W 5 RESISTOR C F 1K 1 6W 5 RESISTOR C F 1K 1 6W5 ____ RESISTOR C F 1K 1 6W 5 RESISTOR C F 1K 1 6W 5 RESISTOR C F 1K 1 6W 5 RESISTOR C F 1K 1 6 5 RESISTOR C F 1K 1 6W 5 RESISTOR C F 1K 1 6W 5 RESISTOR C F 1K 1 6W 5 RESISTOR C F 1K 1 6W 5 RESISTOR C F 1K 1 6W 5 RESISTOR 1 6 5 __ RESISTOR C F 10K 1 6 5 _ RESISTOR 10K 1 6W 5 RESISTOR C F 1 6W 5 RESISTOR C F 10K 1 6W 5 RESISTOR C F 10K 1 6W 5 RESISTOR C F 10K 1 6W 5 RESISTOR C F 10K 1 6 5 __ RESISTOR C F 10K 1 6W 5 _ 1152 RESISTOR C F 10K 1 6 5 _ R310 030140610311 IRESISTOR 1 6W 5 R610 RESISTOR C F 10K 1 6 5 _ R621 RESISTOR 100K 1 6W 5 _ R806 _ RESISTOR C F 100K 1 6 5 __ R127 RESISTOR C F 100K 1 6W 5 x R132 RESISTOR C F 100K 1 6W 5 __ R315 RESISTOR C F 100K 1 6W 5 R318 RESISTOR C F 100K 1 6W 5 R326 RESISTOR
77. IZ con Ha eel EHT 100K x A FOCUS x oe x SCREEN lt A v HEATER 4 DAO 08 BYV95C A K a 2 s VERT SUP 7 4 192 s 35y a 500V 9 013 1601 D C814 100PF 500 21634 Fa im 352554 Email idi ece mauia co uk URGENCIA EN Loss 10 10 usn div 2 volt div 11 10 usn div 250 volt div 12 20 usn div 0 2 SAC I 11111141 ILLAD cae L IC 101 pin 19 IC 101 pin 18 Collector of 0602 IC 101 pin 37 Rese 251 nx 11 al y L9453M 1252 TDAS830 SEMADAKI 5V1 YAZILARI BASKIDA SV OLARAK DUZELTILECEK div 0 2 volt div 13 20 usn div 50 volt div Collector of Q601 aar dy EX AUD 14 20 usn div 1 volt div IC 101 pin 13 PT11 ANA SASE 19 01 1998 ALL RIGHTS RESERVED 065 031 000 790 4 8915 au a pH 12 77 9 one 8 55 5 o gt 8 8 I R909 ES p n 0 22uF x E 82 5 6927 891 NN lt 8 x 15 C R 2 8 s e z al s ese PE a Cj 00 EM uS ove CI 1008 gt e 8 8 lt lt 2 x N E 5 4 94 8 5 1900 a 3 x 120 1 U TDA9840 TT TOA8425 S 5 9 5s
78. LI UE les 220NF 1 1nF CAAM TATATATA 1162 2061 34007 Tail 8 a 6062 3 5 x lt 1 4 02 a 8062 aS 2068 07 gt e Py 82 gt 8 15 20 S T E 8 anor 7055 Tel 3 001 s 062 N m E 2062 e E F900 21 5 5 74 F904 SFE5 74 TV S L TY S R SDA 50 INTVID 47 1 4 F902 PT 11 Chassis Service Manual 1763 3101 8763 1 5 1 5 1 1 0 1 0 8 1 9 24 7065 05 1 JJS GERMAN STEREO BOARD CIRCUIT DIAGRAM 065 0264 903 F905 F a 5 74 e 5 74 11 Chassis Service Manual For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor j Oxon 9 4QY gt Tel 01844 351694 01844 352554 Email enquiries mauritron co uk BA gt 8 83 3 E06NI d ry vas Tes oS ON9 _ L E 125 BE 9 i 1 4 d eco t i gt 53 T 35 ss sb 8 8 HL 1 E 82 4 3 H pg ol 8 1 I NICAM BOARD CIRCUIT DIAGRAM 14 43 12 29 18 1 17 ij 26 WVHOVIG LINDYID
79. LVAH d3MOd ANISLV3H 7 ANISLVAH 1 THE PLACEMENT OF CHASSIS 368 2 ex 5 cuo mno m m w m m m m m m w w w wm wm ww 030 nnm v m w w Ww v I uy Ca al 11 Chassis Service Manual s Ow DESCRIPTONS OF THE PARTS 1 SWITCH MODE POWER SUPPLY STAGE In order to supply the DC voltage required at various parts of the chassis a SMPS transformer controlled by the IC TDA 4605 and switching transistor 3N90 is used Cl EM1 C2 filter circuit prevents the network noises and the effects of high frequency which produced in TV set After rectifying DC voltage is filtered by using C5 The stat up voltage of TDA4605 is obtained from R2 at the same time a square wave ii produced from pin 5 of IC TDA4605 This square wave reaches QI passing through R8 After that Q1 form and induction on TR1 which produces a voltage on pin 6 This voltage rectified by D6 is used as a supply voltage of IC 1 IC 1 do es not operates SMPS by stopping pulses at pin 5 when the network is higher or lower than fixed limits Pin 2 is control pin of overload This stage produces 115V for FBT 12V for audio part 33 V for tuning circuit 5V 12V tuner and some ICs and 8V for TDA8362 are produce by the means of the regulators LM7805 LM317 and LM7808 This circuit operates between 165 VAC and 250VAC 50Hz 2 MICROCONTROLLER STAGE Below items are contr
80. ORZ VERT KLTLI TMK2004 075100411000 CONN 4P HORZ VERT KI KLTLI TMK2004 CONN HORZ VERT KLTLITMK2004 ___ CONN 9P HORZ VERT KLTLI TMK2009 CONN 12 HORZ VERT KLTL TMK2012 CONN 12 BRD TO BRD MKF 19402 SWITCH POWER GDE 310 04 747 1 SWITCH TACT SKHHLN MTLCONT6 6 SWITCH TACT SKHHLN 6 6 SWITCH TACT SKHHLN MTLCONT6 6 SWITCH TACT SKHHLN 6 6 BATTERY 1 5V AA GREENLINE TRF HRZ DRIVE AT ETH 20Y20BY TRF SMPS 142021 PT 12V 604200000280 TRF FBT 14 20 21 PT COIL 10UH 596 0 16A AXIAL FIXED COIL 10UH 596 0 16A AXIAL FIXED COIL 10UH 596 0 16A AXIAL FIXED COIL 10UH 5 0 16A AXIAL FIXED COIL 3 3UH 5 0 21A AXIAL FIX COIL 3 3UH 5 0 21A AXIAL FIX COIL 3 3UH 5 0 21A AXIAL FIX _ 608080000161 6 8UH 5 0 175A AXIAL FIX 2 7 nn 7 13965 AMSTRAD 3121N PART NO ________ _______ 608080000191 COIL 8 2UH 5 0 165 AXIAL FIX _ 608080000191 8 2UH 5 0 165A AXIAL FIX COIL 8 2UH 5 0 165 AXIAL FIX COIL VARIABLE 38 9 2 TSW2099 COIL VARIABLE 38 9 2 TSW2099 COIL CHOKE 110UH 15 __ COIL CHOKE 150UH 10 0912151 COIL DEGAUSSING 20 21 CPT NM COIL 12UH 596 0 15A AXIAL FIXED 608980000111 COIL 1UH 596 0 27A AXIAL FIXED C
81. Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk TW T eee 10934 FIDELITY CTV 3014 oee PART NO COMPONENT T POS 042184502251 CAP ELECT 2 2 50V 20 RU ____ 6625 042194504751 ELECT 4 7 50V 20 042194504751 ELECT 4 7MF 50V 20 042414251061 CAP ELECT 10MF 25V 20 042414251061 ELECT 10 25V 20 042414251061 CAP ELECT 10MF 25V 20 ____ CAP ELECT 10MF 25V 20 _ ELECT 10MF 25V 20 2 ELECT 10 25 20 _ ELECT 10MF 25V 20 ELECT 10MF 25V 20 _ _ CAP ELECT 100MF 63V 20 ELECT 1MF 250V 20 _____ CAP ELECT 1000MF 35V 20 RSS 042416501051 ELECT 1MF 50V 20 042416501051 CAP ELECT 1 50V 20 _ 042416501051 CAP ELECT 1MF 50 20 _ 042416501051 CAP ELECT 1MF 50V 20 CAP ELECT 1MF 50 20 CAP ELECT IMF 50V 20 CAP ELECT 1MF 50V 20 ELECT 1 50 20 042416502261 ELECT 22 50V 20 ____ 042417162271 ELECT 220 16V 2 F CAP ELECT 1000MF 25V 20 10 20_ CAP ELECT 470MF 35 20 CAP ELECT 470MF 35V 20 _ CAP ELECT 470MF 35V 2096 CAP ELECT 10MF 250V 20 ________ CAP ELECT 10 16V 2 _____ CAP ELECT 2 2MF 50V 20 CAP ELECT 2 2MF 50V 20 _ CAP ELECT 2 2MF 50V 20 CAP ELECT 2 2MF 250V 20 CAP ELEC
82. R 1897 GND HEATER SYS p Bv je n n 5 k CEN 4 CEN 4 4 B G SND SW SND 277 603 IER a 1 P 0453 R468 4 7 i d VID TXT 1 2 B2 B3 B4 85 1 0 10 35 ui DUE 2 1451 3 am ME 8 ug R BOY 1 2 E VOI C305 R310 10K 16 mmm 2 252 40 102 467 6 7 B G SND gt 144148 6319 0321 220PF a in an pe te ee CTV322S Cr Li o LO 1 St RED lt H GREEN lt C2 BLUE lt B G SND d RT Ti 0 e S652 p LM n a 5653 idi 4 UU ll ex TUN T 0 E i l emm 1101 L TDA8362 eK GQ PAL SECAM INCVBSIN O1CON L PEAK EXCVBSIN FLYIN S CHRIN SS H DRY R120 7 BRG 8 9UP R121 1008 0 R122 1006 0110 R OUT nie INS SUBOUT S C114 0 C115 0 2 47 0115 0 Tot B IN R YIN cor H S CHR C121 0122 G_INPUT Lad 1NF B_INPUT B OUT 4 43 8 0UT XTAL3 58 PAL D z TDA8361
83. RECT 1N4007 DO 41 D202 048326428001 DIODE RECT BYW72 500 64 _ _ 0023 11 Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 01844 352554 Email enquiries mauritron co uk 13965 AMSTRAD 3121N M ws m PART NO COMPONENT 048540733021 DIODE ZNR 33V ZT K33B DO 35 048542613621 DIODE ZNR 6V2 BZX55C 00 35 048548637001 DIODE ZNR 9V1 BZX55C 00 35 048773809001 IDIODE LED KLR114L 5 _ 049030000081 CRYSTAL 8 192 MHZ 7 HC49U CRYSTAL 10 000 MHZ HC49U CRYSTAL 13 875 MHZ HC49U CRYSTAL 9 8304 MHZ HC49U _ _ CRYSTAL 4 433619 MHZ HC49U FUSE 2 250V 5X20MM TIME LAG CRT 21 A51J8Y83X13 SEG HITCH n e 075020800031 SOCKET CRT 50359 01 040 29M CONN 2P KLTLI 5MM TPK50 VERT 075030211001 2 KLTSZ 5MM 5279 2 VERT CONN 2P KLTSZ 10MM 5283 2 HRZ _ CONN 2 VERT KLTSZ TMK2105 _ CONN 5 HORZ VERT KLTSZ 2105 CONN BRD TO BRD MKF19399 _ 075030910871 CONN 9P BRD TO BRD MKF19399 _ SOCKET SCART 14 20 21 ORTAK 075100210020 CONN 2P HORZ VERT KLTSZ 9 3MM 075100211050 2P FEMALE KLTSZ 9 9 3MM GRAY CONN 2P KLTLI 10MM TPK100MAIN CONN 2P KLTLI 7 5MM TPK75 DEG CONN 2P KLTSZ 7 5MM 5287 2ADEG CONN 3P HORZ VERT KLTLI TMK2003 CONN HORZ VERT KLTLI TMK2003 CONN H
84. RS BC546B TO 92 046926112281 TRS BC546B 92 046926112281 TRS BC546B TO 92 046926112281 TRS BC546B TO 92 046926112281 TRS BC546B TO 92 w s ad 046926112281 ba sss sss 046926112281 TRS BC546B TO 92 0454 046926112281 TRS BC546B 92 Pe h Page 10 E re neon Dm onm Jae nm m Ww 7e onm mw Ce Y ow 4 d Gud A OR amp W ON A ON AN W gy 13965 AMSTRAD 3121 PART NO COMPONENT 046926112281 TRS BC546B TO 92 a N 046926265281 TRS BC556B 92 046926265281 TRS BC556B TO 92 046926666291 TRS BC557B 046926666291 TRS BC557B Lois 046932183031 TRS BUH515D ISOWATT 218 _ 046933000041 TRS STPSN80F ISOWATT 220 ee 046933000051 TRS STP3N90FIISOWATT 220 046933000061 TRS STPENGOFI ISOWATT 220 048000000011 DIODE RECT BYD33D SOD 81 048000000011 DIODE RECT BYD33D SOD 81 048000000011 DIODE RECT BYD33D 500 81 _ 048000000021 DIODE RECT BYV95C 500 57 048000000021 DIODE RECT BYV95C 500 57 048000000021 DIODE RECT BYV95C 500 57 048000000021 DIODE RECT BYV95C SOD 57 048000000021 DIODE RECT BYV95C 500 57 u i eres Ep ae swt Dal Ea CPAP PRES AIA PR 048000000021 IDIODE RECT BYV95
85. Rejection Supply Voltage 11 YF Output M1 M4 GND Mounting Tags kuq demi 4 Peewee F Fp WU ou UL UG UG ua W PT 11 Chassis Service Manual Audio Output Amplifiers TDA 7056A Audio amplifier is used on mono TV sets Output is 4 W RMS on 16 Ohms speaker at 10 THD On stereo models TDA 7057 is used Outputs are 2X4 W RMS 8 Ohms speakers at 10 THD TDA 7057AQ PINNING PIN VOLTAGE 4 Positive supply Voltaae 9 Voltage input 2 6 Signal ground D 7 volume control 2 1 0V 8 Positive output 2 D 9 Power ground 2 D 10 Negative Output 2 11 Negative output 1 12 Power ground 1 13 Positive output 1 For Service Manuals Contact MAURITRON TECHNICAL SERVICES Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 enquiries mauritron co uk input 1 P TEMPERATURE STABILIZER PROTECTION DC volume contro 1 input 2 OC volume control 2 not signal power power connected ground ground 1 ground 2 Block diagram au d i eee 48 11 Chassis Service Manual TDA 7056A PINNING PIN VOLTAGE Not connected Positive supply voltage 12 5 Voltage input 1 0Vpp Signal ground DC volume control 1 0V 6 Positive output Power ground Negative output
86. SL _ CAP CER 18P 50V 5 CH CAP CER 18P 50V 5 CH CER 18 50V 5 CH 0 CER 18P 50V 5 CH CER 27PF 50V 5 05 CER 27PF 50V 5 05 220 50V 10 CER 220PF 50V 10 040040041021 CAP CER 1N 50V 10 B 040040041021 CAP CER 1N 50V 10 CAP CER 220PF 50V 1096 SL CAP 47PF 50V 10 CH CER 47PF 50V 10 CH CAP CER 4 7NF 50V 1096 B CAP CER 4 7NF 50V 10 B CER 100PF 500V 10 8 2 2NF 1KV 10 CER 2 2NF 1KV 10 CER 2 2NF 10 BN CAP CER 470PF 1KV 1096 B 25 720 p um M6 __ _ 96 r t manu ss US XN XE UU UU UU UU UU UU Uu W I kasa Page 5 FEWER 10934 FIDELITY CTV 3014F PART NO COMPONENT POS 040040154711 CER 470PF 1KV 10 B 6024 040040154711 CER 470PF 1KV 10 B T C028 040040156811 CAP CER 680PF 1KV 10 BN C804 CAP CER 1NF 2KV 10 _ C00 CAP CER 470PF 2KV 1096 BN 10PF 50V 10 22PF 50V 10 _ CAP CER 22PF 50V 10 CH 22PF 50V 10 CH _ 22PF 50V 10 CER 22PF 50V 10 560PF 50V 10 040046151021 CAP 1NF 1KV 10
87. T 47MF 16V 2096 CAP ELECT 47MF 16V 20 CAP ELECT 47MF 16V 20 __ CAP ELECT 47 16V 20 _ CAP ELECT 220 50V 20 _ CAP ELECT 100MF400V20 SNAP IN 045000000761 TDA4605 045000000971 C TDA7056A MONO 045000001011 ST24CO2B amp PCF8582C 2P EEPROM 045000001031 IC TDA4665 DELAY LINE P S ___ 045101070201 CTV322S V2 PCA84C641 le Page 7 ptum hnic tincta C X X X YOOX ee ee 44 44444 10934 FIDELITY CTV 3014F PARTNO COMPONENT 1 POS TDA8361 5Y PAL SIG PROCES _ IC LM317 1 5 ADJ V REG 220 _ LM7805 5V1A VOLT REG 0 220 _ TRS 2SC1573A TO 92 TRS BUZ90AF 046000022101 5 2369 92 046246022281 TRS BC547B _ _________ 046246022281 TRS BC547B 046246022281 TRS BC547B 046246022281 TRS BC547B 046246022281 TRS BC547B 2 018209022281 TRE BCSATE 046246022281 TRS BC547B 046246022281 TRS BC547B 046246022281 TRS BC547B 046472261011 TRS BF869 TO 202 sg 046472261011 TRS BF669 10 202 046472261011 TRS BF869 TO 202 x Q053 _ TRS BC546B TO 92 TRS BC546B TO 92 TRS BC546B TO 92 TRS BC546B TO 92 TRS BC546B TO 92 TRS BC546B 92 5 546810 92 ________ 046926112281 TRS BC546B TO 22 2 TRS BC546B TO 92 046926112281 TRS BC546BTO 92 i TRS BC556B TO 92 nM 046926666291 TRS BC557B i TRS BUH515DISOWATT 218 ____ 5 220 _ Q001 _ TRS STP
88. TOR 100R 1 4W 5 RESISTOR C F 10K 1 4W 5 030020610331 RESISTOR C F 1 4W 5 aaa 030020610331 C F 10K 1 4W 5 __ amp 4 amp amp amp amp K Page 1 YW Ww OY Www 10934 FIDELITY CTV 3014F __ RESISTOR 1 5 1 4 596 RESISTOR C F 1 5K 1 4 5 RESISTOR C F 1 5 1 4W5 _____ RESISTOR C F 1 5K 1 4W 5 RESISTOR C F 22M 1 4 5 RESISTOR C F 3 3K 1 4W 5 RESISTOR 390R 1 4W 5 E RESISTOR 390R 1 4W 5 ____ RESISTOR 390R 1 4W 5 RESISTOR 4708 1 4W 5 RESISTOR C F 470R 1 4W 5 RESISTOR 4708 1 4 5 _ 030020647231 RESISTOR C F 4 7K 1 4W 5 RO RESISTOR 4 7 1 4W 5 2 R60 RESISTOR C F 4 7K 1 4W 5 ni 207 RESISTOR C F 680R 1 4W 5 RESISTOR 680R 1 4 5 RESISTOR 820R 1 4W 5 5 RESISTOR 15R 1 2 5 __ RESISTOR 2208 1 2W 5 ____ 030050622111 IRESISTOR 220R 1 2W 5 RESISTOR 470R 1 2WS NONFLM RESISTOR C F 4 7M 1 2W 5 SFTY RESISTOR FUSIBLE 0 22R 1 2W 5 RESISTOR FUSIBLE 0 22R 1 2W 5 RESISTOR FUSIBLE 0 22R 1 2W 5 RESISTOR FUSIBLE 0 22R 1 2W 5 030059627211 RESISTOR M O 2 7 1 25 596 1 030059627211 RESISTOR 2 7K1 2W5 NONFLM 030059627211 RESISTOR 2 7K1 2WS NONFLM RESISTOR FUSIBLE 0 22R 1W 5 RESISTOR FUSIBLE 0 228 1W5 RESISTOR 3 3R_1W 5 RESISTOR C F 47K 1W
89. _ RESISTOR C F 56R 1 6W 5 RESISTOR C F 5 6K 1 6W 5 RESISTOR C F 5 6K 1 6W 5 _ RESISTOR C F 5 6K 1 6W 5 RESISTOR C F 56K 1 6 5 030140668201 IRESISTOR C F 6 8 1 6W 5 Service Manuals Contact MAURITRON TECHNICAL SERVICES Page 4 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 01844 352554 Email enquiries mauritron co uk FF PF Yb ovr P PF Fen nn nn n s s m s v 1 4 10934 FIDELITY CTV 3014 COMPONENT RESISTOR 68K 1 6W 5 _____ RESISTOR C F 680K 1 6W 5 __ RESISTOR 75R 1 6W 5 RESISTOR 75R 1 6 5 22 RESISTOR 75R 1 6 5 _ RESISTOR 75R 1 6W 5 _ RESISTOR 75R 1 6 5 _ RESISTOR C F 7 5K 1 6W 596 RESISTOR C F 82R 1 6W 5 RESISTOR C F 82R 1 6W 5 RESISTOR C F 820R 1 6W 5 ___ RESISTOR C F 8 2K 1 5 RESISTOR C F 8 2K 1 6W 5 RESISTOR C F 8 2K 1 6W 5 _ RESISTOR 10K 2W 5 2 RESISTOR 68K 2W 596 030208668311 RESISTOR M O 68K 2W 596 RESISTOR C F 8 2K 2W 5 RESISTOR C F 8 2K 2W 5 RESISTOR C F 8 2K 2W 5 RESISTOR 18 5 __ RESISTOR W W 2K5W 10 _ RESISTOR W W 5 6R5W 10 RESISTOR W W 5 6R 5W 10 THERM 18R 30 10 2 5MM _ FILTER TRAP 6 0MHZ TPS 6 FILTER CER 6 0MHZSFE6 0MB FILTER SAW J1952M MONO INTCR CER 390PF 50V 10
90. a Operating Junction Temperature Pulse width limited by safe operating area 64 X X X3 Q oO do od u d x lt m 11 Chassis Service Manual THERMAL DATA F TO 218 ISOWATT218 r Thermal Resistance Junction ambient Max ____ 6 aT C W Thermal Resistance Case sink CN Maximum Lead Temperature For Soldering Purpose 2200 0300 AVALANCHE CHARACTERISTICS F Avalanche Current Repetitive or Not Repetitive A pulse width limited by T max lt 1 mJ 3 2 Single Pulse Avalanche Energy 8 Cherry Tree Rd Chinnor 160 starting Tj 25 Ip lAR 50 V Oxon OX9 01844 351694 Faxt 01844 Repetitive Avalanche Energy Email enquiries me 42 pulse width limited by max 6 lt 1 e Avalanche Current Repetitive or Not Repetitive 100 pulse width limited by 6 lt 1 ELECTRICAL CHARACTERISTICS Tcase 25 C unless otherwise specified OFF Breakdown Voltage Zero Gate Voltage Drain Current VGs 0 Gate body Leakage Current 0 Test Conditions Ip 250 pA Vas 0 _ Vps Max Rating Vps Max Rating x 0 8 ON Symbol Test Conditions VGS th Gate Threshold Voltage Vps Vas 250
91. ail enquiries mauritron co uk 33 C O di m m T T T m m m T mp m T T T T T T Y Y HH x w w W w m eem m w M NNA T 7 11 Chassis Service Manual 034 512 46 ER PM 1031 an B 1106 C 0158 w C129 70517 E 2r ee f 22 2 TL S T CA TET IS 28150 3 n 13 wt wd 4 8432 0454 i diste 101582 7 iias 000 r as i 21 E 23 T 044 _ 3118 8405 gi 4 20160 134210 ME aa o 54035 m 4 Bs annes m 1181 Tye 9 526624 E Lr ee 3 0652 M em 4652 775685 P H 97 1287 614097020120 L230 304 1 wA wu Wi Wi m MI iM T TT IN mt IBN X 225 SMS A 21 E i 11 Chassis Service Manual Um RD 0271 aE AA a uui 70434 0452 Z XX p 00210117 4 x x w 3 oc 3 K
92. ase is based on the TDA 8362 Multistandard TV Processor Pal Decoder 4665 Base band Delay Line and TDA8395 Secam Decoder The Features of this Concept Multistandard vision IF circuit positive and negative modulation Multistandard FM sound demodulator 4 5 MHz to 6 5 MHz External Video and Audio Switches Integrated chrominance traps and baseband filters Integrated luminance delay line RGB control circuit with linear RGB inputs Horizontal synchronization with two loops and alignment free horizontal oscillator without external components Vertical count down circuit 50 60 Hz and vertical preamplifier Low dissipation For Service Manuals Contact MAUR TRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Cron OX9 4QY Tel 01844 351694 Fax 01844 352554 enquiries mauritron c0 uk Block Diagram flyback qd sandcastle VRAMP PHILF 4 PHaLF 57560 DEC AUOUT n 529 VOUT T i T 1 XTAL1 XTAL2 IDENT AGCOUT AFCOUT VSTART HOUT XTALOUT im ps ue IFIN1 IF VERTICAL XTAL HUE PHAS IFIN2 AMPLIFIER Po OUTPUT OSCILLATOR CONTROL VERTICAL SYSTEM I R DIVIDER MANAGER IFDEM PEE NE PHASE OSCILLATOR DETECTOR HH DET COLOUR 5 to 0 008 FH osoputaron Y AFC AND SAMPLE AND HOLD B Y Input T Lao
93. div 2 20 usn div 2volt div 3 5m sn div 2volt div s a LL LI Drain 01 01 IC 301 26 IC 301 pin 27 555 AV I R ce54 Eme 4700PF SOV pari eet Siem Gh eae 50V 684 AY O L TT 8 AV 0 A x B G SNO ey 5V4 4651 5 4 T 0566 205 0682 oe 257 25 SW SND sii du i x B 6 SOUND amp WOO 6 SOUND UND MOD POLARITY SWITCH POLARITAT SCHALTER S652 wu 144445444 FOR SECAM L L FUR SECAN 8 Ek E 11 TOA4605 q 3 8 g 12 WHEN SERVICING THIS AREA CONNECT WAHREND REPARATUR YON GEBIET AN ISOLATING TRANSFORMER BETWEEN IS EIN TRANSFORMATOR ZU VERWENDEN DER TV RECEIVER AND AC LINE TO DEN TY EMPFANGER VON DEM NETZSTROM ELIMINATE HAZARD OF ELECTRIC SHOCK TRENNT DAMIT KONNEN SIE ELEKTRISCHEN SCHOCK VERMEIDEN or Service Manuals Contact 8 Cherry Tr OX9 4QY Email enquiries mauritron co uk 3 sn div 2volt div 4 5 msn div 0 5 volt div 9 9 msn div 1 volt div 6 5 msn div 20 vol 301 pin 27 IC 101 pin 41 IC 601 pin 3 IC 601 pin 5 __ _ __ _ __ ___ ____ 15 gt 47 2 19 220uF Wi M
94. ed from power supply HOR DEFL z gt 17 HORIZONTAL DRIVE PART CIRCUIT DIAGRAM U ik U U UL UA w PT 11 Chassis Service Manual _ 6 SOUND OUTPUT STAGE mono models TDA7056A is used as sound output amplifier with DC volume control Pin 50 of the TDA8362 is AC coupled to the input 3 of the TDA7056A via RC filter It is supplied 12V coming j from a separate winding in the SMPS transformer On stereo models TDA7057AQ is used as sound amplifier The sound level is controlled by sound proces sor TDA8425 bus on stereo boards The outputs of 8425 9 and pin 13 is connected to TDA7057AQ via a divider circuit and two capacitors 1 1 7 TELETEXT STAGE 1 The teletext stage consists of SAA5254 On this stage it should be paid attention that there is video signal pin 8 of SAA5254 after RCL filter on condition that existence of the other requirements such as 5V periferical components Basically fastext stage consists two l s STV5346 Teletext decoder and CTV 974 fastext controller with bus interface For List Mode a 2K EEPROM PCF8582 can be added 8 CRT STAGE The TDA6103Q is used on CRT stage as video output amplifier The TDA6103Q consists of three monolithic video output amplifiers Each amplifier can be seen as an operational amplifier with negative feedback The advantage of negative feedback is that
95. em 045000001011 ST24CO2B amp PCF8582C 2P EEPROM 045000001021 iC TDA3653B VERTICAL DEFLECTIO 045000001031 TDA4665 DELAY LINE P S 545000001401 72832 M2 NICAM DECODER 045000001421 TDA4605 3 SMPS CONTROLLER a i d 045018113181 IC 7808 8V 1A VOLT REG TO 220 LI o sa n 045101070251 STV5346 TXT TURKISH EUR iS s 045101070361 IC STV5346 TXT WEST EUROPE _ 1 045190083791 IC 8361 5 PAL SIG PROCES 045238103051 1 LM317 1 5A ADJ V 045238103081 LM7805 5V1A VOLT REG TO 220_ u si 046000000051 TRS 2SC1573A TO 92 046000000211 TRS BUZ90AF 046000000251 TRS 2SK2545 046246022281 TRS BC547B 046246022281 TRS BC547B TRS BC547B TRS BC547B TRS BC547B TRS BC547B 046246022281 TRS BC547B ___ 046246022281 TRS BC547B 046246022281 TRS BC547B 046246022281 TRS BC547B 046246022281 TRS BC547B 046246022281 TRS BC547B MRNA 048000022101 TRS PH2369 10 92 3 10 220 046246022281 TRS BC547B TRS BC547B TRS BC547B TRS BC547B TRS BC558B TO 92 TRS BC558B 92 TRS BC558B 92 m ws nas 046926112281 IRS BC546B 92 046926112281 TRS BC546B 92 046926112281 TRS BC546B TO 92 2 2 046926112281 TRS BC546B 92 046926112281 TRS BC546B 92 046926112281 RS BC546B TO 92 046926112281 T
96. ier Stop Comparator Transit TDA4605 Detector Overload Point Corrction w wu W UL Us UL UL u Ub Ub lt u M w y w Pin Definitions and Functions PinNo Function 1 Information Input Concerning Secondary Voltage By comparing the regulating voltage obtained trom the regulating winding of the transformer with the internal reference voltage the output impulse width on pin 5 is adjusted to the load of the secondary side normal overload short circuit no load 2 Information Input Regarding the Primary Current The primary current rise in the primary winding is simulated at pin 2 as a voltage rise by means of external RC element When a voltage level is reached thats derived from the regulating voltage at pin 1 the output impulse at pin 5 is terminated The RC element serves to set the maximum po wer at the overload point set 3 Input for Primary Voltage Monitoring In the normal operation V3 is moving between the thresholds V3H and V3L V3H gt V3 gt V3L V3 lt V3L SMPS is switched OFF line voltage too low V3 gt V3H Compensation of the overload point regulation controlled by pin 2 Starts at V3H V3L 1 7 4 Ground U a 5 Output Push pull output provides 1 for rapid charge and discharge of the gate capacitance of the po wer MOS transistor 6 Supply Voltage Input A stable internal reference voltage VREF is derived fr
97. ite balance at high and low contrast level Again make adjustment if it s necessary T us Um m 4 ub a Lii NN v PT 11 Chassis Service Manual Sa SPECIFICATIONS OF THE CONNECTOR EURO SCART l Audio output 1 right channel 0 5 VRMS lt I k 0 2 Audio input 1 right channel 0 5 VRMS connected to No 6 3 Audio output 2 left channel 0 5 VRMS connected toNo 1 4 GND audio 5 GND 6 Audio input 2 left channel 0 5 VRMS gt 10k 0 7 RGB input blue B 8 Switch signal video status 9 GND 10 Reserved for clock signals not connected 11 RGB input green 12 Reserved for remote control not connected 13 GND 14 GND switch signal RGB 15 RGB input red R 16 Switch signal RGB 17 GND video 18 GND19 Video output 1 Vpp 75 ohm 20 Video input 1 Vpp 75 ohm 21 Shield 1 3 5 7 9 11 13 15 17 19 21 TTTTTIITI 2 4 6 8 10 12 14 16 18 20 PT 11 Chassis Service Manual DESCRIPTIONS Xo 2 Service 5 Contact MAURITRON TECHNICAL SERVICES IR SENSOR 8 Cherry Tree Rd Chinnor Oxon OX9 4QY 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk VOLTAGE REGULATOR ON OFF SWITCH LINE FILTER TRANSISTOR PNP TRANSISTOR CER
98. llator input 4 x 5 OV ground OV Positive reference voltage for the ADC _ 5 7 Video black level storage pin connected to ground via a 100 nF capacitor Composite video input 1 Reference current input pin connected to ground via a 27kohm resistor 5V supply _ 5V STTV FB FFB polarity selection pin 2 Sync to TV output pin line flyback input pin Function controlled by an internal register bit scan sync mode 20 PLL time constant switch field flyback input pin Function controlled by an internal register bit scan sync mode D OV ground Dot rate character output of the RED color information Dot rate character output of the GREEN color information Dot rate character output of the BLUE color information DC input voltage to define the output high level the RGB pins Dot rate fast blanking output _ Ground OV 1 Programmable output to provide contrast reduction of the TV picture formixed text and picture displays or when viewing newflash subtitle pages open drain output 2 25Hz output synchronized with the CVBS input s field sync pulses to produce 22 a non interlaced display by adjustment of the vertical deflection currents lt Dot rate character output of teletext foreground color information open drain output 5 4 Serial clock input for the C bus It can still be driven during power down ofthe device nu
99. ltage is disconnected u w 1 RADIATION PRECAUTION 1 Excessive high voltage can be produce potentially hazardous X RAY radiation To avoid such hazard the high voltage must not be above the specified limit The nominal value of the high voltage of this receiver is 25KV at zero beam current minimum brightness under 220V AC power source The high voltage must not under any circumstance exceed 30KV It is recommended the reading of the high voltage be recorded as a part of the service record It is important to use an accurate and reliable high voltage meter 2 The primary source of X RAY radiation in this TV receiver is the picture tube For continued X RAY radi E ation protection the replacement tube must be exactly the same type tube as specified in the part list PT 11 Chassis Service Manual PT 11 CHASSIS ADJUSTMENT PROCEDURE 1 System Voltage B Adjustment Before switching on TV all potentiometers should be adjusted at medium level Then is switched Adjust all of the analog parameters to minimum with RC Adjust P1 trimpot until find 115 V on the cathode of D2 diode 2 AFT Adjustment Place a balloon coil 300 Ohm dc resistance parallel to L104 Apply 80 dB uV 38 9 MHz 39 5 MHz for signal via balloon coil Connect a voltmeter to aft pin 9 of IC301 Adjust T101 coil until the voltage of this
100. m ame i ae gt u H DRV J104 226 si 580 2 V DEFL Y0KE VERT PULSE TXT _ C134 0 1uF Service Manuals Contact AURITRON TECHNICAL SERVICES Cherry Tree Rd Chinnor Oxon OX9 4QY 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk FOR MONO SECAM L L FUR MONO SECAM T3 0 1uF VERT PULSE gt gt gt T F 6 2K AN K lt 467 000 EVEN 405 RIN lt 4 ae a 1251 M ET x TDA8395 1148 x SECAM d 4 g HOR DEFL 2601 SW SND TB me gt gt FOCUS 8610 gt SCREEN L LPRIME gt 558 A m GNU HEATER gt B G SND n 2776603 VID TXT N A2 B2 Hs B3 B4 B10 B11 B12 43 B14 B15 B16 B17 B18 B19 B20 SAAS254P F dme SIMPLE 6 5 0 3 15A 250V 4 SW10 60 5 40 Ci K C11 C12 cn 47uF 4 I zr 8 1 50 THE SERVICE INFORMATION FOR SAFETY SER WHEN SERVICING THIS AREA CONNECT WAH AN ISOLATING TRANSFORMER BETWEEN IS RECEIVER AC LINE TO DEN ELIMINATE HAZARD OF ELECTRIC SHOCK TRE peu supa EET ME URS 1 5 usn div 100 volt
101. m H tea a R689 R696 CN692 QD 1201 TDA6103G ad z 3 2 8 B 8202 gt x R201 13 2708 1 4 3K3 1 4 L I 1 44 5201 221 Bx PTS 218 igs 203 BASIC 1 i 4 I I I 8210 TE L 1 l t 1 2 I I 500A R208 T aW 82K 1 21 R207 K3 ve Wik 108 1 4 2205 c 5008 0202 7 184007 ane 4 euer 250 5103 CRT BOARD CIRCUIT DIAGRAM CRT BAUSTEIN SCHALTUNGSPLAN Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon CXS 4QY Tel 01844 351664 01844 352554 Email enquiries mauritron co uk NICAM L BOARD NICAM L BAUS 12 15 eee 1813 A2 NICAM L BOARD A2 NICAN NICAM BOARD BAUSTEIN GERMAN STEREO BOARD GERMAN STEREO BAUSTEI 5 L BOARD L BAUSTEIN 812 815 3 gt 696 _ 3913 e 87 87 951 875 t 954 953 In 0983 to d 2981 F651 77 2 i A2 NICAM L BOARD A2 NICAM L BAUSTEIN 527 10502 FASTEXT BOARD FASTE
102. n Standards B G L L and DK with automatic PAL SECAM Decoding gt Power Source Power Consumption Stand By Power Consumption Channel Coverage 12W UHF 21 69 51 541 Number of Programs Audio Outputs Speakers Antenna Input Y V 75 Ohm IEC Standard Features Auto search Personal Preference Auto Shut off Scart with RGB Swap function Store function on RC On Screen Display Fine tunning Prog Vol control buttons on the set Sleep timer RC Hand Unit TM45L type Y Y YY V Y Y Optional Features gt Fastext gt Simple Text gt German Stereo gt Nicam B G L gt Double Scart 175V 250V 70W stereo 60W mono 2 4 5 12 70 stereo 90 mono 2 4 Watts stereo 4 Watts mono at 10 THD 2 8 Ohm stereo 8 Ohm mono 29 ce 11 Chassis Service Manual I a THE BOARD LAYOUTS ZZ AW cys 5 Qo 08 25 152 43 n rs Manuals Contact TECHNICAL SERVICES GERMAN STEREO BOARD 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01 844 351694 Fax 01844 352554 Email enquiries mauritron co uk 88 0030 NICAM BOARD 9 2 2 2
103. of the integrated circuits 36 TDA8362 36 TDA4665 39 8395 40 CTV 352S CTV 322 41 4605 43 45 TDA7057AQ 46 TDA7056A For Service Manuals Contact pd TDA4470 B MAURITRON TECHNICAL SERVICES 48 8 Cherry Tree Rd Chinnor Ta 251090 Fac 1200 Email enquiries mauritron co uk 52 SAA 5254 53 PCF 84C81 CTV 974 55 STV 5346A 56 TDA9840 57 SAA 7283 59 TDA8425 61 TDA3653B 62 TDA6103Q 63 Power MOS and hor drive transistor specs 64 3 90 64 BUH 515D 67 The part list 70 11 Chassis Service Manual RECOMMENDATION FOR SERVICE REPAIRS 1 Use only original parts Only use components with the same specifications for replacement 2 Original fuse value only should be used 3 Main leads and connecting leads should be checked for external damage before connection Check the insulation 4 Parts contributing to the safety of the product must not be damaged or obviously unsuitable This is valid especially for insulators and insulating parts 5 Thermally loaded solder pads are to be sucked off and re soldered 6 Ensure that the ventilation slots are not obstructed 7 Potentials as high as 25 KV are present when this receiver is operating Operation of the receiver outside the cabinet or with back cover removed involve a shock hazard from the receiver Servicing should not be attem
104. olled or generated by means of these controllers CTV 322S V2 0 for mono models and CTV 352 V1 4 for stereo models are used as controller on PT chassis Voltage synthesis tuning For Service Manuals Contact On screen display MAUFITRON TECHNICAL SERVICES amp Control of two transmission standard 8 Cnarry Tree Rd Chinnor OX9 4QY Controls of the simple text or fastext decoder Tel 01844 351694 Fax 01844 352554 Full peri TV scart switching and double scart switching on stereo models Email enquriesQomauritron co uk e Controls of stereo decoder TDA 9840 as German Stereo Decoder SAA 7283 as Nicam decoder Sound processing Bass treble balance 2 Controls of the analog values of the picture Brightness Color Contrast 3 ANALOG OPERATION PART WITH TDA 8362 TDA8362 is a single chip TV processor which contains nearly all small signal functions that are required for color television receiver Fora complete receiver the following circuits need to be added base band delay li ne TDA4665 a tuner and output stages for audio video and horizontal and vertical deflection TDA8362 can handle signals with positive modulation and it supplies the signals which are required for secam decoder TDA8395 VIDEO IF AMPLIFIER The IF amplifier contains 3 AC coupled control stages with a total gain control range of greater than 60 dB Th reference carrier for the video demodulator is obtained mean
105. om the supply voltage also the switching thresholds V6A V6E V6 max and V6 min for the Supply voltage detector If V6 gt V6E then VREF is switched on and swiched off when V6 lt V6A In addition the logic is only enable for V6 min lt V6 lt V6 max 7 Input for Soft Start Start up will begin with short pulses by connecting a capacitor from pin 7 to ground 8 Input for the Oscillation Feedback After starting oscillation every zero transition of the feedback voltage falling edge through zero failing edge triggers an output pulse at pin 5 The trigger threshold is at 50 mV typical For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Chinnor Oxon OX9 4QY 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk PT 11 Chassis Service Manual SSS 11 Chassis Service Manual Ta s K_ A lt kT k Q TUNER Word Standard Specifications B G H D K I P L L E2 S10 48 25 MHz 168 25 MHz E5 S39 175 25 MHz 447 25 MHz 540 69 455 25 2 855 25 MHz IF Frequencies Picture 38 90 MHz Input Impedance Output Impedance TV STANDARD Channels Ch Input VSWR All channels Noise Figure All channels typ 6 dB Gain All channels _ Image Rejection Ch E2 20 min 70 dB Ch S21 S39 min 66 dB min 50 dB Ch S40 E69 All channels min 60 dB IF
106. pin being 2 5 V dc 3 Adjustment of G2 For Service Manuals Contact Apply Philips Test pattern MAURITRON TECHNICAL SERVICES 2 8 Cherry Tree Chinnor Adjust all of the analog parameters to minimum with RC Oxon OX9 4QY Adjust G2 trimpot until seeing two bars on gray scale Tel 01844 351694 01844 352554 Email enquiries mauritron co uk 4 Horizontal and Vertical Adjustment Apply Philips Test pattern signal Center the picture horizontally while picture shifting to right and left with P101 Make vertical amplitude adjustment with P602 until seeing top and lower lines of picture will be seen Center the picture with P601 5 AGC Adjustment Apply Philips Test Pattern whose amplitude is 60 dB uV to the rf input Adjust P102 until find a picture without snowy 6 Focus Adjustment Apply Cross Hatch Pattern signal Find the optimum concentration point between H and V intersection in the middle of screen 7 White Balance Adjustment Apply Philips Test Pattern signal Adjust all of the trimpots on CRT board to medium level Adjust color contrast brightness to minimum by RC Adjust G2 Apply white pattern settle in the probe of color analyzer to screen Increase brightness until geting Y 10 nits Adjust x 270 276 nits y 270 276 nits 201 VR203 VR205 Increase brightness and contrast until Y 90 100 nits Adjust x to same values via 202 and VR204 Check wh
107. plied to pin 36 COLOR DECODING TDA8362 contains PAL and NTSC decoder TDA8361 contains only PAL decoder but it can cooperate with the secam add on secam decoder TDA8395 The communication between two IC s is achieved via pin 32 The TDA8362 supplies the reference signal 4 43 MHz for the calibration system of the TDA8395 identifica tion of the color standard is via the same connection When a SECAM signal is detected by the TDA8395 the IC will draw a current of 150 uA When TDA8362 has not identified a color signal in this condition it will go in to the SECAM mode that means it will switch of the and B Y outputs and increase voltage level on pin 32 4 VERTICAL DEFLECTION CIRCUIT WITH TDA3653B The TDA3653B is vertical deflection circuit for drive of various deflection systems with currents up to 1 5 A pe ak to peak Pin 5 is the output pin the supply for the output stage is fed to pin 6 and the output stage ground is connected to pin 4 Pin 1 is the input for the driver of the output stage The signal at pin 1 is also applied via external resistors to pin 3 which is the input of the switching circuit When the flyback starts this switching circuit rapidly turns off the lower output stage and so limits the turn off dissipation It should be noted that the lowest voltage at pin 8 is 2 5 V during normal operation For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY 01844 351694
108. pted by anyone who is not thoroughly familiar with the precautions necessary when working on high voltage equipment Perfectly discharge the high potential of the picture tube before handling the tube The picture tube is highly evacuated and if broken Glass frogments will be violently expelled Always discharge the picture tube anode to the receiver chassis to keep of the shock hazard before remo ving the anode cap 8 Keep wire away from the high voltage or high temperature components 9 When replacing a wattage resistor in circuit board keep the resistor 10 mm away from circuit board MOS circuit requires special attention with regard to static charges Static charges may occur with any highly insulating plastics and can be transferred to persons wearing clothes and shoes made of synthetic materials Protective circuits on the inputs and outputs of mos circuits give protection to a limited extend only due to ti me of reaction Please observe the following instructions to protect the components against damage from static charges 1 Keep mos components in conductive package until they are used Most components must never be sto red in styropor materials or plastic magazines 2 Persons have to rid themselves of electrostatic charges by touching MOS components 3 Hold the component by the body touching the terminals 4 Use only grounded instruments for testing and processing purposes 5 Remove or connect MOS ICs when operating vo
109. r 24 5 24 2888 494 2 1 A061 Oxon 9 40 Tel 01844 351694 Fax 01844 352554 Email enquiries mduritron co uk HOH or Service Manudls Contact MAURITRON TECHNIC O3GIA 149 02019 val JAIYG 83A 11 Chassis Service Manual yoLVINGOW3a 01300230 WV33S 1Vd ji 105532084 03011 2958 vol INIT AVEO 796 VYS g uosssgoua n AG 1 1 2 6 ALO A 91 809v V 1 318 44 pcc ALS 01 m A SdINS JVAOCC 898 NIV 100 LAN OS NVYDVIG 32018 SISSVHO 11 14 m m m m m m m mm mmm HOH W n u u U Uu u u U u U ee A MIA AD A WD UU E E X D www PxaiSVd 229 10 ONY SPESALS 03 315 021 81 802 I INVOIN 78594 O3H31S NVIWH3S 028691 WVOIN HOJ VYS x 11 Chassis Service Manual YOLVINGOWSG 040 OSLN Wd 05532 O3GIA EI JAIHQ 5997 A 7 509 VOL cl ASil 022 941 501
110. r the color differen ce signals R Y and B Y in multi standard TVs PINNING PIN VOLTAGE Digital supply voltage 5V Not connected D Digital ground OV Test input OV Sandcastle input Not connected t For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquities mauritron co uk Test input Test input Analog supply voltage 5V li Analog ground D R Y output 3 25V B Y output 3 25 Reference current _ 4 O IQ N N join Block diagram SIGNAL CLAMPING ett as AND colour difference addition output colour difference input signals stages buffers output signals aey v sw eee 39 B Y FREQUENCY DIVIDER X PHASE BY 192 DETECTOR pulse input 6MHZ DIVIDER digital supply 1 GND2 med848 3 WA X A UE UE UE UE k k PT 11 Chassis Service Manual TDA 8395 The TDA8395 is a self calibrating fully integrated SECAM decoder PINNING PIN VOLTAGE Reference frequency input D
111. rolled Complete alignment free AM demodulator with gain controlled AF output Separate SIF AGC with average detection Iwo independent SIF inputs Contact operation of the demodulator and QPS mixer for NICAM L stereo sound i SERVICES g Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01 844 352554 Email enquiries mauritron co uk Offset Loop O AFC filter Switch switch optional C 0 N 21 110 TDA4470 B V 26 18 20 m ee 12 Video 4 9 16 switch Tuner Take over point SIF 2 ntercarriet FM NICAM Input Switch SIF 1 48 11 Chassis Service Manual TDA 4470 B j I ical Tuner AGC output current Video output Take over point tuner Standard switch 0V 5V L switch 0 5 zx Tex gi gt k 8 PO I COIN AF output sound Offset compensation SIF2 input symmetrical SIF2 input symmetrical 26 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 enquiries mauritron co uk C 49 _______________________________
112. s of passive regeneration of the picture carrier The external reference tuned circuit is the only remaining adjustment of the IC In the TDA8362 the polarity of the demodulator can be switched so that the circuit 15 suitable for both positi ve and negative modulated signals The AFC circuit is driven with the same reference signal as the video de modulator To ensure that the video content does not disturb the AFC operation a sample and hold circuit in corporated the capacitor for this function is internal the AFC output voltages 6V The AGC detector operates on levels top sync for negative modulated and top white for positive modulated signals The AGC detector time constant capacitor is connected externally T RECEN s gt 8 0 au 0 M ____ _ s gt W W ORE U UR ik GR UE UE UR UR UE UL UL UL UL UE UL UL UL UL UL Ub w w U AV PT 11 Chassis Service Manual SOUND IF CIRCUIT On mono models The sound bandpass and trap filters have to be connected externally The filtered intercarrier signal is fed to a limiter circuit and is demodulated by means of PLL demodulator The PLL circuit tunes itself automatically to the incoming signal consequently no adjustment is required The volume is DC controlled The composite audio output signal has an amplitude of 700 mV RMS at a volu me control
113. t 2 5V Cosine channel offset compensator capacitor 2 5V 1 Cosine channel eye pattern output _ 25V 32 peak detector storage capacitor __ 2 5V 33 Internal demodulator reference voltage buffered output 2 5V Internal demodulator reference current output 2 5V Internal demodulator reference voltage unbuffered output 2 5V Demodulator Vpr 2 SRON Demodulator Vss hed cmm 38 Not connected 25 00 Clock loop phase comparator output 8 192MHz X tal input AV 8 192MHz X tal output BV X tal oscillator Vss i _ __ OV input Serial 728 kbitss 25 Data output Serial 728 kbits s CUu 5D SS ee i v w YW YF v FPP F 7m nmm L PINNING Clock output 728khz Digital Vss Digital Data output Serial 728 kbits s Clock input for Data input output for address bit 0 input 52 C bus bit controled from PORT2 T I 0901 4103 DQPSK arr pum QADRATURE MIXERS BASEBAND FILTERS lt TT AND AGC GAIN STAGE EI VDDF 2 SINE inn ey VSSF 2 AGC REVVE S CONTROLLER PKDET VROF vRCG CLKLPF BIT RATE CLOCK CARRIER LOOP YCONT RECOVERY QUADRATURE VCO DATAOUT VCLK DATAIN XTAL
114. witch GDE 11 On Off Button 12 Preamplifier 13 Tact Switch 14 Led PCB Holder 15 Led PCB 16 Led Holder Led 18 Heatsink Block PT2 19 Heatsink Block PT3 20 Heatsink Block PT1 21 IF Shield 22 F Bottom Cover 23 IF Top Cover 24 Scart Socket 25 Tuner 26 Picture Tube 27 Degaussing Coil 28 Mass Wire 29 30 CRT PCB Assy 31 Washer 32 Screw 5 30 33 Back Cover 34 Screw 3 9x19 35 Back Cover Label 8 b Lens Screw 2 9x9 5 Please don t forget writing you whenever you order spare parts 2 21 arose For Service Manuals Con MAURITRON TECHNICAL SERVICES 8 Cherry Tree Chinnor Oxon 9 4QY 01844 351 694 Fax 01844 352554 Email enquiries mauritron co uk

Download Pdf Manuals

Related Search

Related Contents

XIV.A. Operation of Systems  通知本文はこちら（PDF）  télécharger le fichier  ASUS F2A55-M/CSM T7489 User's Manual  Kailash Nathan Kevin Walsh Radthavis Sayabovorn Overview  User Guide - Chelonia.co.uk  i.Beat run  Samsung Micro Audio System D320 دليل المستخدم  De quelle couleur sera le bébé d`Anne Crahay  palmOTDR User`s Manual  

Copyright © All rights reserved. Failed to retrieve file