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Service Manual

E1 CHASSIS

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Summary of Contents for E1 CHASSIS

Page 1: ...Service Manual E1 CHASSIS ...

Page 2: ...al Specifications 3 o Remote Control 4 o Preperations 5 o Operating Your TV 6 o Block Diagram 10 o IC Specs 11 o Pin Voltages of IC s 18 o OSCILLOSGRAPHS OF SOME IC PINS 19 o Electrical Adjustments 22 o Channel Frequency Tables 25 o Spare Part List 27 ...

Page 3: ...connect a jumper between the two prongs of the plug 2 Turn the receiver s power switch on 3 Measure the resistance value with an ohmmeter between the jumpered AC plug and each exposed metallic cabinet part on the receiver such as screw heads aerials connectors control shafts etc When the exposed metallic part a return path to the chassis the reading should be between 4Mohm and the 20Mohm When the ...

Page 4: ...5 12 CABLE TV S1 41 UHF BAND CH21 69 Audio outputs 2 0W RMS at 10 THD 14 2 5W RMS at 10 THD 20 21 High Voltage 23 0 5 KV 14 25 0 5 KV 20 21 Focus voltage 25 6 38 of EHT Grid 2 voltage 0 1400 V Heater voltage 6 2 0 2 Vrms Video Audio Terminals AV1 IN Video 1 Vpp 75 Ohm Audio 0 5 Vrms 10 Kohm RGB AV1OUT Video 1 Vpp 75 Ohm Audio 0 5 Vrms 1 Kohm AV2 IN RCA optional Video 1 Vpp 75 Ohm Audio 0 5 Vrms 10...

Page 5: ...ia only one button SWAP 16 9 picture format Scart Socket Video cassette recorder satellite receiver video disc player DVD TV games or a home computer can be connected to this AV socket with an appropriate connecting cable Normalization system to recall the setting in memory after the colour contrast brightness setting have been changed Automatic Volume Limiting Infrared Remote Control Your TV will...

Page 6: ...supplied into the compartment on the rear of the remote control ensure you follow the polarity diagram inside the compartment PIN CONNECTIONS FOR SCART SOCKET 1 Audio output Right 11 RGB input Green 2 Audio input Right 12 3 Audio output Left Mono 13 Red ground 4 Audio ground 14 Ground 5 Blue ground 15 RGB input Red 6 Audio input Left Mono 16 Blanking Signal 7 RGB input Blue 17 Video output ground ...

Page 7: ...r and programme name if it is exist will appear on the screen This will disappear automatically after a few seconds D TUNING THE TELEVISION There are two ways of tuning your television Manual where you control the tuning process or Autoprogram where the television does it all automatically The TV sets equipped with ATS Automatic Tuning System sorts the channels regarding the broadcasting system of...

Page 8: ...me up down button to select the channel number or enter the channel number using the Numeric buttons Use the Program down button to select PROGRAM NO Enter the desired program number by using the Ten key program buttons Use the Volume up down buttons to select the program number Use the Program down button to select STORE Press the OK button and STORED will appear on the STORE line The channel wil...

Page 9: ...et up this is the set up the TV will default to when you switch it on Please note If you do not press any buttons for 18 19 seconds the TV will exit the menu system There are three menus Picture Menu Setup Menu Features Menu Picture Menu To reach the picture menu press one time to MENU button BRIGHTNESS CONTRAST COLOUR SHARPNESS To change for example the colour select it using Program down buttons...

Page 10: ...2 hours by pressing numeric buttons or AV button If TV is at Stand by position you can switch it on at desired time and programme by activating the ON TIMER feature To cancel the on time select off in ON TIMER c AVL TV transmitters have different sound levels AVL automatic volume limiting maintains the same sound level as you switch from program to program From the features menu you can select AVL...

Page 11: ...AL DEFL IC 501 TDA 8357 VDR A VDR B VGUARD IC 104 TDA 9830 AM DEMOD AM OUT 28 33 34 TUNER AGC SCL SDA IF1 IF1 EEPROM IC 103 24CO8AN 10SI 2 7 KEYBOARD IR RECEIVER 27 2 3 24 23 6 7 5 51 52 53 FBT TR 501 107 V EHT 45 V 12 V 8 V SCART 8 8 R G B 46 48 47 SCART FRONT AV SWITCH IC 201 HEF 4053 A V AV SEL C VBS AUD IC 601 TDA 16846 POWER SUPPLY 220V AC in 115 V 33 V 12 5 V 3 3 V 5 V AOUT 6 BLOCK DIAGRAM O...

Page 12: ...frequency Only one reference 12 MHz crystal required for the µ Controller and the colour decoder Multi standard colour decoder with automatic search system Internal base band delay line Indication of the Signal to Noise ratio of the incoming CVBS signal A linear RGB YUV YPBPR input with fast blanking for external RGB YUV sources The synchronisation circuit can be connected to the incoming Y signal...

Page 13: ...le SPT Text memory for 1 or 10 pages d Display Teletext and Enhanced OSD modes Features of level 1 5 WST and US Close Caption Serial and Parallel Display Attributes Single Double Quadruple Width and Height for characters Scrolling of display region Variable flash rate controlled by software Enhanced display features including overlining underlining and italics Soft colours using CLUT with 4096 col...

Page 14: ...13 ...

Page 15: ...outputcircuit Vertical flyback switch with short rise and fall times Built in guard circuit Thermal protection circuit Improved EMC performance due to differential inputs SYMBOL PARAMETERS CONDITIONS MIN TYP MAX UNIT Vp Supply voltage 7 5 12 18 V VFB flyback supply voltage 2 x VP 45 66 V Iq P av average quiescent supply current during scan 10 15 mA Iq FB av Iq FB av during scan 10 mA Ptot total po...

Page 16: ...nd the other side connected to a common input output Z With E LOW one of the two switches is selected low impedance ON state by Sn With E HIGH all switches are in the high impedance OFF state independent of SA to SC VDD and VSS are the supply voltage connections for the digital control inputs SA to SC and E The VDD to VSS range is 3 to 15 V The analogue inputs outputs Y0 Y1 and Z can swing between...

Page 17: ...citor n c 5 not connected AMOUT 6 AM demodulator output AMIN 7 input signal from AM to audio switch AFOUT 8 output signal from audio switch EXTIN 9 input signal from external to audio switch SWITCH 10 switch input select control Vp2 11 supply voltage 12 V alternative MUTE 12 mute control GND 13 ground 0 V Vp1 14 supply voltage 5 to 8 V n c 15 not connected IFIN 16 sound IF differential input signa...

Page 18: ...ocessor 0 0 50 BLKIN black current input V guard input 7 13 0 19 DECBG bandgap decoupling 3 99 0 51 RO Red output 2 81 0 03 20 AVL Automatic Volume Levelling 0 01 0 01 52 GO Green output 2 81 0 03 21 VDRB vertical drive B output 0 94 0 53 BO Blue output 2 79 0 03 22 VDRA vertical drive A output 0 98 0 54 VDDA analog supply of Teletext decoder and digital supply of TV processor 3 3 V 3 24 3 24 23 I...

Page 19: ...ator is connected to the TV Colour Bar sound 1 kHZ 9 1 TDA 9345 IC 101 Pin 21 VDRB Vertical Drive Output B 15625 kHz Pin 22 VDRA Vertical Drive Output A 15625 kHz Pin 33 HOUT Horizontal Output 15625 kHz Pin 34 FBISO Flyback Input Sandcastle Output 15625 kHz ...

Page 20: ...ltage TV processor 15625 kHz Pin 40 CVBS1 internal CVBS input 15625 kHz Pin 44 AUDOUT Audio Output 15625 kHz Pin 50 BLKIN Black current input V guard input 15625 kHz Pin 51 Ro Red Output 15625 kHz Pin 52 Go Green Output 15625 kHz ...

Page 21: ...0 Pin 53 Bo Blue Output 15625 kHz Pin 58 XTALIN crystal oscillator input 15625 kHz Pin 59 XTALOUT crystal oscillator Output 15625 kHz 9 2 TDA 2822 IC 301 Pin 1 Input 1 15625 kHz Pin 6 Output 1 15625 kHz ...

Page 22: ...tware are written on right bottom of the screen For Example SE1 641 A01 07 26 04 12 57 37 2 1 AGC Adjustment Switch on the Service Menu Find the AGC UHF with P P Set its value to 30 for BG BG DK and I systems Find the AGC VHF with P P Set its value to 30 for BG BG DK and I systems Find the AGC LPRIME with P P Set its value to 20 for LL system Exit from the service menu 2 2 Screen Adjustment Switch...

Page 23: ...c Gain Control for UHF Band ACG VHF Automatic Gain Control for VHF Band AGC LPRIME Automatic Gain Control for SECAM LL Systems TYPE Label sorts according to the catching order ATS Automatic Tunning System STANDBY CUSTOMER MODE the units starts up in St by mode default value FACTORY MODE the unit directly goes to ON mode can be used during repair AV1 SVHS ON SHVS from Scart one is available OFF AV2...

Page 24: ... 16 9 Mode 11 00 12 12 YC DELAY PAL YC Delay Pal 07 07 07 07 YC DELAY SECAM YC Delay Secam 07 07 07 07 YC DELAY NTSC YC Delay NTSC 07 07 07 07 HOR OSD POS Horizontal OSD Position 41 37 37 37 VER OSD POS Vertical OSD Position 07 04 04 04 OSD CON OSD Contrast 06 06 06 06 TXT CON Teletext Contrast 00 00 00 00 TXT BRI Teletext Brightness 30 30 30 30 PWL Peak White Limiting 08 08 08 08 CATH DRV LEV Cat...

Page 25: ...24 11 CHANNEL FREQUENCY TABLE ...

Page 26: ...25 ...

Page 27: ... 0603 X7R 294118 C143 CC CHIP 100NF K 50V 0805 X7R 294109 C144 CC CHIP 100NF K 50V 0805 X7R 294109 C145 CC CHIP 100NF K 16V 0603 X7R 294118 C146 CC CHIP 100NF K 50V 0805 X7R 294109 C148 CC CHIP 4 7NF K 50V 0603 X7R 292475 C149 CC CHIP 3 3NF K 50V 0603 X7R TAPE 292336 C150 C151 CC CHIP 1NF K 50V 0603 X7R 292114 C152 C PEM 1NF K 50V R 5 272101 C153 CC CHIP 1NF K 50V 0603 X7R 292114 C154 CC CHIP 2 2N...

Page 28: ... C526 C PEM 100NF J 100V R 5 274107 C527 EC 47UF 63V 11 6 3 R 5 251475 C528 EC 1000UF 16V 20 10 R 5 253115 C529 C530 CC CHIP 100NF K 50V 0805 X7R 294109 C532 CC CHIP 2 2NF K 50V 0603 X7R 292228 C602 C604 CC CHIP 47NF K 25V 0603 X7R TAPE 293478 C605 C606 CC CHIP 10NF K 50V 0603 X7R 293113 C608 C PPM 10NF K 275 VAC R 10 273115 C609 C610 CC 1NF K 1KV Y5P R 5 202105 C612 C PPM 33NF J 630V R 15 203330 ...

Page 29: ...521 01 IC103 IC CHIP AT24C08AN 10SI 2 7 ATMEL TAPE 453031 02 IC201 IC 4053B CMOS 16SOIC 452510 IC301 IC TDA2822 452439 IC601 IC TDA16846 452795 IC602 IC CHIP NCP1117DT33RK TO 252 PACKAGE 453124 L0001 CHOKE COIL 50MHZ 600R PH WBC3 R 3B1 55139 L0002 CHOKE COIL 50MHZ 600R PH WBC3 R 3B1 55139 L0003 COIL 10UH K TAIYO LAL03 53711 L102 L109 COIL 10UH K TAIYO LAL03 53711 L110 COIL CHIP 1UH K 0805 53805 L5...

Page 30: ...HIP 100R J 1 16W 0603 171107 R160 CFR 100R J 1 4W 52MM 101106 R161 RC CHIP 3 9K J 1 16W 0603 TAPE 172393 R162 CFR 680R J 1 4W 6 52MM 101683 R163 CFR 100R J 1 4W 52MM 101106 R164 CFR 100R J 1 4W 52MM 101106 R165 CFR 1K J 1 4W 6 52MM 102101 R166 CFR 100R J 1 4W 52MM 101106 R167 R172 RC CHIP 100R J 1 16W 0603 171107 R173 RC CHIP 39K J 1 16W 0603 TAPE 173394 R174 RC CHIP 390R 1 1 16W 0603 TAPE 171392 ...

Page 31: ...70R J 1 16W 0603 TAPE 171472 R509 RC CHIP 220K J 1 16W 0603 TAPE 174224 R510 RC CHIP 390K J 1 10W 0805 174391 R511 RC CHIP 5 6K J 1 16W 0603 TAPE 172567 R511 RC CHIP 5 6K J 1 16W 0603 TAPE 172567 R512 CFR 560R J 1 4W 6 52MM 101562 R513 CFR 0 47R J 1 2W 9 52MM 109472 R514 CFR 47R J 1 4W 6 52MM 100473 R515 RC CHIP 2 2K 1 1 10W 0805 172227 R516 RC CHIP 2 2K 1 1 10W 0805 172227 R517 RC CHIP 10K J 1 10...

Page 32: ...TRN BC337 25 401047 T02 TRN CHIP BC858B SOT23 401142 T102 TRN CHIP BC848B SOT23 401141 T108 T109 TRN CHIP BC848B SOT23 401141 T201 T203 TRN CHIP BC848B SOT23 401141 T301 TRN CHIP BC848B SOT23 401141 T503 T505 TRN BC639 400240 T507 TRN CHIP BC858B SOT23 401142 T701 T703 TRN 2SC 2482 401397 T704 T706 TRN BF421 401366 TU101 TUNER PH ASM PLL UV1316 AIG 4 SHORT G99136 PH3 TUNMAS CABLE SINGLE ISO L 400 ...

Page 33: ...ODE Z C8V2 26MM 302294 CPT VC A51EFS13X191 056321 VC6 DEGAUSSING COIL HOLDER FASON 871273 DEGAUSSING COIL HOLDER A99273 DEGAUSSING COIL ASSY 21 BAND 621167 AS FLUX RF 800NO CLEAN 60163 SOLVENT KR IN 2613 060155 01 TR501 FBT 20 21 E1 040146 EL1 Alternative 040146 TR1 TR601 SMPS 20 21 E1 050146 EL1 Alternative 050146 TR1 32 ...

Page 34: ...Z0 5 EN 6 VEE 7 VSS 8 VDD 16 YOUT 15 XOUT 1 X1 13 X0 12 CONT_X 11 CONT_Y 10 CONT_Z 9 IC201 053 T505 BC639 202 BC8 8 T50 BC639 R233 7k ZD503 5 6V ZD502 8 2V 8VA C217 10n R507 70R C216 2 2u 50V R228 68k V R229 68k R209 75R V C219 100n 8VA R221 1k T201 BC8 8 R222 1k R531 10R 1 W C218 7u 50V R231 70R C212 1n R226 5 6k C211 1n R213 15k 8V 5V FROM FRONT AV R23 7k R235 7k C220 10u 63V 8VA V R225 0R 8V JU...

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