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HT-3718 Service Manual Haier Group

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4. 37 List of Parts Location Material code Parts Name Type Ot Unit Remark R343 0094101103 Jumper 0 6mm 7 5mm B 1 W246 0094101103 Jumper 0 6mm 7 5mm B 1 W381 0094101103 Jumper 0 6mm 7 5mm B 1 W101 0094101103 Jumper 0 6mm 7 5mm B 1 W404 0094101103 Jumper q0 6mm 7 5mm B 1 VV401 0094101103 Jumper 0 6mm 7 5mm B 1 W908 0094101103 Jumper q0 6mm 7 5mm B 1 W221 0094101103 Jumper 0 6mm 7 5mm B 1 W106 0094101103 Jumper 0 6mm 7 5mm B 1 W420 0094101103 Jumper 0 6mm 7 5mm B 1 W209 0094101103 Jumper 0 6mm 7 5mm B 1 W197 0094101103 Jumper 0 6mm 7 5mm B 1 W245 0094101103 Jumper 0 6mm 7 5mm B 1 W394 0094101103 Jumper 0 6mm 7 5mm B 1 W397 0094101103 Jumper 0 6mm 7 5mm B 1 W491 0094101103 Jumper 0 6mm 7 5mm B 1 W482 0094101104 Jumper 0 6mm 10mm B 1 W410 0094101104 Jumper 0 6mm 10mm B 1 W580 0094101104 Jumper 0 6mm 10mm B 1 W510 0094101104 Jumper p0 6mm 10mm B 1 W242 0094101104 Jumper 0 6mm 10mm B 1 R214 0094101104 Jumper 0 6mm 10mm B 1 W880 0094101104 Jumper 0 6mm 10mm B 1 W909 0094101104 Jumper p0 6mm 10mm B 1 W201 0094101104 Jumper p0 6mm 10mm B 1 W203 0094101104 Jumper q0 6mm 10mm B 1
5. T 1 R240 0094100033 Resister RT13 1 6W 10KO 5 T 1 R102 0094100033 Resister RT13 1 6W 10KO 5 T 1 R115 0094100033 Resister RT13 1 6W 10KO 5 T 1 R270 0094100033 Resister RT13 1 6W 10KO 5 T 1 31 List of Parts Location Material code Parts Name Type Qt Unit Remark R253 0094100033 Resister RT13 1 6W 10KO 5 T 1 R205 0094100033 Resister RT13 1 6W 10KO 5 T 1 R297 0094100033 Resister RT13 1 6W 10KO 5 T 1 R312 0094100033 Resister RT13 1 6W 10KO 5 T 1 R322 0094100033 Resister RT13 1 6W 10KO 5 T 1 R324 0094100033 Resister RT13 1 6W 10KO 5 T 1 R546 0094100033 Resister RT13 1 6W 10KO 5 T 1 R314 0094100033 Resister RT13 1 6W 10KO 5 T 1 R328 0094100033 Resister RT13 1 6W 10KO 5 T 1 R330 0094100033 Resister RT13 1 6W 10KO 5 T 1 R332 0094100033 Resister RT13 1 6W 10KO 5 T 1 R530 0094100033 Resister RT13 1 6W 10KO 5 T 1 R201 0094100033 Resister RT13 1 6W 10KO 5 T 1 R202 0094100033 Resister RT13 1 6W 10KO 5 T 1 R579 0094100033 Resister RT13 1 6W 10KO 5 T 1 R812 0094100073 Resister RT13 1 6W 12KO 5 T 1 R576 0094100034 Resister RT13 1 6W 15KO 5 T 1 R537 0094100034 Resister RT13 1 6W 15KO 5 T 1 R267 0094100034 Resi
6. 27 Exploded View 28 List of Parts 29 Damageable Parts List 44 Information of Resistors and Capacitors 45 Product Code illumination and Series Introduction 2 Product Code illumination and Series Introduction HT 3718 Color television appearance CRT size unit inch Philip haier 1 Features MODEL Functures MODEL ITEM FUNCTION NO ITEM FUNCTION HT 3718 HT 3718 1 PICTUREnain ic 9361 24 SOFTWARE Digital curtain x 2 CRT Flat square 25 Slow fading on amp off M 3 Color system PAL 26 Semitransparent menu M ka Audio system B G 27 Non flashing channel changing y En NO of channels 218 28 ZOOM x 6 OSD language ENGLISH 29 16 9 mode X 7 Multi picture modes y 30 Games X 8 AUDIO AV stereo x 31 Calendar y 9 Super woofer x 32 Child lock ui 10 Surrounding sound x 33 Multi functional lock y 11 Treble bass boost X 34 No picture listening X 12 Left right balancer y 35 Background light y 13 NICAM y 36 Auto timer on x 14 Multi audio modes x 37 CCD A 15 Tone adjuster x 38 V CHIP x 16 MTS SAP x 39 PARAMETERS of built in speakers 2
7. Step Function Voltage Positive Negative V CQ CQ 1 STANDBY 0 1 12 58K 12 87K 2 SCL 3 5 12 62K 12 9K 3 SDA 3 2 12 62K 12 9K 4 Tuning 0 4 0 5M 257K 5 SYSTEM 3 2 11 7K 11 9K 6 KEY 3 1 33K 30K 7 VOL1 4 42 10 6K 10 9K 8 VOL2 4 42 10 6K 10 9K 9 VSS C P 0 0 0 22 Circuit Explanation Step Working Ground Resistance R Function Voltage Positive Negative V CQ CQ 10 BAND1 0 11 9K 10K 11 BAND2 6 38 3 0K 3 0K 12 VSSA 0 0 0 13 SEC PLL 2 3 6 86M 4 4M 14 VP2 7 7 0 77K 0 75K 15 DECD G 5 0 30K 29 9K 16 PH2 LF 2 9 1 33M 0 45M 17 PH1 LF 3 9 6 8M 4 2M 18 GND3 0 0 0 19 DEC BG 4 0 37 3K 37 2K 20 AVL EWD 0 6 9M 4 6M 21 V DRB 0 7 1 9K 1 9K 22 V DRA 0 7 1 9K 1 9K 23 IF IN1 1 9 35 3K 35 6K 24 IF IN2 1 9 35 3K 35 6K 25 REF 3 84 39 1K 39K 26 VS C 3 8 6 72M 4 96M 27 TUNER AGC 0 1 13K 10 5K 28 AU DEEM SIF1 2 9 1 44M 2 04M 29 DECS DEM SIF2 2 4 6 92M 4 64M 30 GND2 0 0 0 31 SND PLL SIF AGC 2 3 1 38M 0 42M 32 AVL REFO 0 2 6 82M 3 96M 33 H OUT 0 6 2 56K 2 54K 34 F B L SO 0 4 30 2K 30K 35 AUO EXT 3 6 6 92M 4 92M 36 EHTO 1 1 12K 12K 37 PLL F 1 4 6 76M 4 93M 38 IF VO SVO 2 6 0 98M 0 38M 39 VP1 7 7 0 77K 0 75K 40 CVBS INT 3 44 6 76M 4 2M 41 GND1 0 0 0 42 CVBS Y 3 8 4 56M 384K 43 CHROMA 1
8. T 1 R303 0094100017 Resister RT13 1 6W 1000 5 T 1 R238 0094100017 Resister RT13 1 6W 1000 5 T 1 R260 0094100017 Resister RT13 1 6W 1000 5 T 1 R261 0094100017 Resister RT13 1 6W 1000 5 T 1 R255 0094100017 Resister RT13 1 6W 1000 5 T 1 R272 0094100017 Resister RT13 1 6W 1000 5 T 1 R275 0094100017 Resister RT13 1 6W 1000 5 T 1 R276 0094100017 Resister RT13 1 6W 1000 5 T 1 R902 0094100017 Resister RT13 1 6W 1000 5 T 1 R219 0094100017 Resister RT13 1 6W 1000 5 T 1 R222 0094100017 Resister RT13 1 6W 1000 5 T 1 R110 0094100132 Resister RT13 1 6W 1800 5 T 1 R251 0094100802 Resister RT13 1 6W 1500 5 T 1 R252 0094100802 Resister RT13 1 6W 1500 5 T 1 R217 0094100019 Resister RT13 1 6W 2200 5 T 1 R256 0094100019 Resister RT13 1 6W 2200 5 T 1 R247 0094100134 Resister RT13 1 6W 3900 5 T 1 R257 0094100020 Resister RT13 1 6W 4700 5 T 1 R421 0094100020 Resister RT13 1 6W 4700 5 T 1 R425 0094100020 Resister RT13 1 6W 4700 5 T 1 R241 0094100021 Resister RT13 1 6W 5600 5 T 1 R310 0094100792 Resister RT13 1 6W 6800 5 T 1 R320 0094100792 Resister RT13 1 6W 6800 5 T 1 R917 0094100792 Resister RT13 1 6W 6800 5 T 1 R107 0094100023 Resister RT13 1 6W 1KO 5 T 1 R226 0094100023 Resister RT13 1 6W 1KO 5 T 1 R311 0094100023 Resister RT13 1 6W 1KO 5 T 1 R296 009410
9. Tolerance CL21X 100V 223 J Type Voltage Value pF Tolerance CL110X 25V 100 uF E 2090 Type Voltage Value Tolerance 104 10X10 223 22x10 Numbering system of resistor Example RY17S 2W 390 J 05 E A Type Wattage Value Q Tolerance RS11 1 2W 1 8K K Type Wattage Value Tolerance ABBREVIATION OF PART NAME AND DESCRIPTION RESISTOR CAPACITOR PART NAME amp DESCRIPTION PART NAME i VANCE TYPE ALLOWANCE i C Ceramic J 5 T Carbon E 1 T Ceramic K 10 S Solid J 5 A L Film L 15 J Metal K 10 D Electrolytic M 20 Y Oxide M 2096 DOS F G 200 A Tantalum P 100 0 Fuse 12 7 8096 094 45 Terminal view of transistors EC D A gt 0 SA614 YK a 25D18887YD Terminal view of transistors i ri KSR1010TA KSC815 YTA KSR2010TA KSA539 YTA E C B EBC p BC548 CTA KSC2331 YTA 46 Sincere Forever Tel 86 532 8938356 Web site http www haier com
10. bridge rectifier components When the switch is set to on the pulse voltage of the 220V voltage rectified by VD503 VD506 rectifier is filtered by the capacitor C511 1500uF to obtain 300V direct current which is added through 3 7 of the switching mode transformer T501 to the pin1 of IC N501 When the appliance is first switched on The coupler VD507 PC817B inlet functions to control voltage and the voltage tolerance information from T501 are transmitted to pin4 of N501 via VD507 to control the switch velocity and hold the output voltage normal The pulse voltage output from the secondary 12 of the switching mode transformer T501 rectified and filtered by V511 RU3A and C522 is 110V direct current voltage which is horizontal voltage The pulse voltage output from 14 is rectified and filtered by VD512 and C526 and the resultant 24V direct current voltage is supplied for sound power amplifier The pulse voltage output from 15 is rectified and filtered by VD515 and C537 and the resultant 12V direct current voltage is supplied to the little signal circuits The pulse voltage output from 15 is rectified and filtered via V509 and N507 to obtain 8V direct current voltage to supply the decode circuit of IC N201 12V direct current voltage output after rectification of the secondary source 3 3V and 5v are supplied to N201 and EEPROM 26 Adjustment 13 Adjustment The chassis of this TV set uses Toshiba IC with the latest digita
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12. 5mm 1 W894 0094101103 Jumper 0 6mm 7 5mm 1 W912 0094101103 Jumper 0 6mm 7 5mm 1 W913 0094101103 Jumper 0 6mm 7 5mm 1 W409 0094101103 Jumper 0 6mm 7 5mm 1 W507 0094101103 Jumper 0 6mm 7 5mm 1 W247 0094101103 Jumper 0 6mm 7 5mm 1 W289 0094101103 Jumper 0 6mm 7 5mm 1 W202 0094101103 Jumper 0 6mm 7 5mm 1 W108 0094101103 Jumper 0 6mm 7 5mm 1 W105 0094101103 Jumper 0 6mm 7 5mm 1 W395 0094101103 Jumper p0 6mm 7 5mm 1 W805 0094101103 Jumper 0 6mm 7 5mm 1 W309 0094101103 Jumper 0 6mm 7 5mm 1 W310 0094101103 Jumper q0 6mm 7 5mm 1 W307 0094101103 Jumper 0 6mm 7 5mm 1 W312 0094101103 Jumper 0 6mm 7 5mm 1 R246 0094101103 Jumper 0 6mm 7 5mm 1 W293 0094101103 Jumper 0 6mm 7 5mm 1 W294 0094101103 Jumper 0 6mm 7 5mm 1 W295 0094101103 Jumper 0 6mm 7 5mm 1 W211 0094101103 Jumper 0 6mm 7 5mm 1 W198 0094101103 Jumper q0 6mm 7 5mm 1 W810 0094101103 Jumper p0 6mm 7 5mm 1 W212 0094101103 Jumper 0 6mm 7 5mm 1 W412 0094101103 Jumper 0 6mm 7 5mm 1 W415 0094101103 Jumper 0 6mm 7 5mm 1 W416 0094101103 Jumper 0 6mm 7 5mm 1 W418 0094101103 Jumper 0 6mm 7 5mm 1 W419 0094101103 Jumper 0 6mm 7 5mm 1 R130 0094101103 Jumper 0 6mm 7 5mm 1 W230 0094101103 Jumper 0 6mm 7 5mm 1 W220 0094101103 Jumper 0 6mm 7 5mm 1
13. F to 600 F b Use an appropriate gauge of RMA resin core solder composed of 60 parts tin 40 parts lead c Keep the soldering iron tip clean and well tinned a Thoroughly clean the surfaces to be soldered Use a mall wire bristle 0 5 inch or 1 25cm brush with a metal handle Do not use freon propelled spay on cleaners e Use the following unsoldering technique a Allow the soldering iron tip to reach normal temperature 500 F to 600 F b Heating the component lead until the solder melts 7 Warning and Cautions a draw the melted solder with an anti static suction type solder removal device with solder braid CAUTION Work quickly to avoid overheating the circuit board printed foil f Use the following unsoldering technique A Allow the soldering iron tip to reach normal temperature 500 F to 600 F B First hold the soldering iron tip and solder the strand against the component lead until the solder melts C Quickly move the soldering iron tip to the junction of the component lead and the printed circuit foil and hold it there only until the solder flows onto and around both the component lead and the foil CAUTION Work quickly to avoid overheating the circuit board printed foil D Closely inspect the solder area and remove any excess or splashed solder with a small wire bristle brush Remove Replacement Some chassis circuit boards have slotted holes oblong through which the IC leads ar
14. MZ73L18RM270 1 XP401 0094300278 Audio video terminal CS 102 1 X1002 0094300097 S Video terminal S 8 1 X503A 0090401272 Wire JT24010D0113Q 1 X502 0094300063 Connect housing TJC2 2A 1 X503 0094300110 Connect housing TJC1 2A 1 X902 0094300307 Connect housing TJC1 4A 1 X903 0094300111 Connect housing TJC3 3A 1 XS402 0094300112 Connect housing TJC3 4A 1 X203 0094300104 Connect housing TJC3 5A 1 X105 0094300092 JConnect housing TJC3 2A 1 X599 0094300111 Connect housing TJC3 3A 1 X204 0094300092 JConnect housing TJC3 2A 1 XS301 0094300062 Connect housing TJC9 2A 1 XS302 0094300062 Connect housing TJC9 2A 1 X106 0094300027 Connect housing TJC9 3A 1 0090100483 pad MTBH5004BA Q 1 0090300526 pad MTCC5013CD Q 1 0090200452 clamp 040 1 0090803117 _ heatsink assembly BJB5099 Q 1 0090801018 heatsink assembly BJB2040 Q 1 N601 0094401619 IC 5Q0765RT 1 0090600065 Screw GB9074 4 88 M3 12 1 0090600066 Nut GB6170 86 M3 1 0090803118 heatsink assembly BJB5100 Q 1 0090100421 Heatsink MTBT2019BC Q 1 0090100114 pad MTBH2002BA Q 1 V902 0094400465 Transistor 25D1651 B A 1 N801 0094401409 IC TDA8357 1 0090600070 Screw GB9074 4 88 M3 14 1 0090600067 Screw GB9074 4 88 M3 10 1 0090600066 Nut GB6170 86 M3 2 0090200250 Wire holder MTAJ0071AG Q 1 0090803147 _ heatsink assembly BJB5101 Q 2 0090100155 heatsink assembly MTBT0094BB Q 1 N301 0094401089 JIC LA4285 1 0090600074 Screw GB9074 4 88 M
15. Resister RS11 1 2W 12M0 20 T 1 R500A 0094100090 Resister RY15S 1 2W 470K J T 1 R500B 0094100090 Resister RY15S 1 2W 470K J T 1 R591 0094100085 Resister RY15S 1 2W 1 5K J T 1 R577 0094102161 Resister RY15S 1 2W 39KQ J T 1 R571 0094101360 Resister RJ15X 1 2W 127KO 1 T 1 32 List of Parts Location Material code Parts Name Type Qt Unit Remark R578 0094102162 Resister RJ15S 1 2W 600 J T 1 R517 0094102162 Resister RJ15S 1 2W 600 J T 1 R572 0094100112 Resister RJ15S 1 2W 1K F T 1 R573 0094101355 Resister RJ15X 1 2W 2 49k01190 R 1 C269 0094201124 Capacitor CC1 06 CH 63V 33pF J F 1 C270 0094201124 Capacitor CC1 06 CH 63V 33pF J F 1 C207 0094201228 Capacitor CC1 06 CH 63V 56pF J F 1 C208 0094201228 Capacitor CC1 06 CH 63V 56pF J F 1 C200 0094201201 Capacitor CC1 06 CH 63V 220PF K F 1 C266 0094200977 Capacitor CT1 05 2B4 63V 390PF K F 1 C238 0094200977 Capacitor CT1 05 2B4 63V 390PF K F 1 C801 0094201130 Capacitor CT1 08 2B4 63V 2200PF K F 1 C802 0094201130 Capacitor CT1 08 2B4 63V 2200PF K F 1 C222 0094201130 Capacitor CT1 08 2B4 63V 2200PF K F 1 C237 0094200981 Capacitor CT1 06 2B4 63V 1000pF K F 1 C227 0094200981
16. Resister_ RF10 1W 10 5 20 C A 2 0 03 0094101171 Resister RF10 1W 2 20 5 12 C A 1 0 03 0094101286 Resister RF10 2W 2 20 5 15 C A 1 0 05 0094101469 Resister RF10 1W 2 20 5 15 C A 1 0 03 0094101559 Resister RF10 2W 2 701590 15 C A 1 0 05 0094102340 Resister RF10 1W 0 270 J 15 C A 1 0 03 0094400186 IC TDA6107Q 1 1 46 0094400417 IC TC4053BP 1 0 24 0094400442 Transistor 25B892 S D A 1 0 2 0094400450 Transistor L7805CV 2 0 18 0094400462 Transistor 2SC2216 0 F 1 0 15 0094400465 Transistor 25D1651 B A 1 1 08 0094400481 Transistor PH2369 D A 1 0 06 0094400517 Transistor L7808CV 1 0 18 0094400586 Transistor 2SA608 E D A 2 0 03 0094400636 IC CAT24C08P 1 0 39 0094400843 IC TDA9874APS 1 13 78 0094400844 IC TDA9801 1 1 23 0094400856 Transistor 2SB892 S F 1 0 2 0094400857 Transistor 25C2383 0 F 1 0 21 0094401089 IC LA4285 1 0 91 0094401409 IC TDA8357 1 1 09 0094401534 IC TDA9361 1 24 95 0094401619 JIC 5Q0765RT 1 2 09 44 Information of Resistors and Capacitors 17 Information of Resistors and Capacitors CAPACITORS RESISTORS amp CAPACITORS PARTS NO CODE Notes 1 part numbers are indicated on most mechanical parts Please use this part number for parts orders 2 The unit of resistance is 9 ohm K 1000 2 M 1000K Q 3 The unit of capacitance is 1 F microfarad 1pF 10 u F Numbering system of Capacitor Example CL42 17 50V 2F4 104 Z Type Voltage Value pF
17. X504 0094101104 Jumper p0 6mm 10mm B 1 F501 0094101104 Jumper 0 6mm 10mm B 1 W895 0094101104 Jumper 0 6mm 10mm B 1 W811 0094101104 Jumper 0 6mm 10mm B 1 W503 0094101104 Jumper 0 6mm 10mm B 1 R223 0094101104 Jumper p0 6mm 10mm B 1 ZD902 0094101104 Jumper p0 6mm 10mm B 1 W901 0094101104 Jumper p0 6mm 10mm B 1 W902 0094101104 Jumper p0 6mm 10mm B 1 W499 0094101104 Jumper 0 6mm 10mm B 1 W804 0094101104 Jumper 0 6mm 10mm B 1 R930 0094101104 Jumper 0 6mm 10mm B 1 W803 0094101104 Jumper p0 6mm 10mm B 1 W802 0094101104 Jumper 0 6mm 10mm B 1 W502 0094101104 Jumper p0 6mm 10mm B 1 W392 0094101104 Jumper q0 6mm 10mm B 1 W296 0094101104 Jumper 0 6mm 10mm B 1 W303 0094101104 Jumper 0 6mm 10mm B 1 W317 0094101104 Jumper 0 6mm 10mm B 1 W380 0094101104 Jumper 0 6mm 10mm B 1 W493 0094101104 Jumper 0 6mm 10mm B 1 W494 0094101104 Jumper p0 6mm 10mm B 1 W413 0094101104 Jumper p0 6mm 10mm B 1 W281 0094101104 Jumper p0 6mm 10mm B 1 W206 0094101104 Jumper p0 6mm 10mm B 1 38 List of Parts Location Material code Parts Name Type Ot Unit Remark W205 0094101104 Jumper p0 6mm 10mm B 1 W207 0094101104 Jumper
18. assembly JE214 02 4 Q 1 0090203574 Back label MTFB5358CA Q 1 0090203569 pad MTAH5028AA Q 1 0090200453 Clamp TMMOA101 1 0090600064 Screw SJ2840 87 ST5 25F 4 0090600023 Screw SJ2824 87 ST4 16F 4 0090600020 Screw SJ2825 87 ST3 12F 2 0090600194 Screw SJ2825 87 ST3 14F 2 0090600011 Screw SJ2824 87 ST3 10F 2 0090600028 Screw SJ2825 87 ST3 10F 1 0090600013 Screw SJ2825 87 ST3 12F 2 0090203570 terminal board MTAH5029AC Q 1 0090803210 Front mask assembly BJK5075 Q 1 0090203095 Front mask MTAA5084AC Q 1 0090200560 Brand MTFA5008AA Q 1 0094000810 speaker YDTO407 801 2 0090300508 speaker crash pad 55 6 0 8 2 0090600034 Screw SJ2824 87 ST3 12F 8 0090600015 Screw SJ2824 87 ST4 12F 2 0090600034 Screw SJ2824 87 ST3 12F 6 0090100398 switch holder MTBC5002BA Q 1 0090203573 Power Switch cap MTAW5004AA Q 1 0090600074 Screw GB9074 4 88 M3 8 2 0090803211 Back cover assembly BJH5064 Q 1 0090203096 Back cover MTAA5085AC Q 1 0090300079 Cloth 15 200 3 0090803212 Package assembly BBC5428 Q 1 0090500090 Plastic cover 14 1 0090503016 Carton MTED5277CA Q 1 0090502280 Left pad MTEE5020AK Q 1 0090502279 Right pad MTEE5019AK Q 1 0090100165 Staple 65 2 4 0090500094 Accessory poke 270 180 1 0090502975 Operating instructions MTDB5488CA Q 1 0094000299 battery S 2 0094002462 Remote controller HTR 024 1 0091800631 PCB PX15103A Q 1 R112 0094100065 Resister RT13 1 6W 100 5 T 1 R417 009410006
19. 0 6mm 10mm B 1 W208 0094101104 Jumper 0 6mm 10mm B 1 W498 0094101104 Jumper 0 6mm 10mm B 1 W497 0094101104 Jumper 0 6mm 10mm B 1 W701 0094101104 Jumper 0 6mm 10mm B 1 W702 0094101104 Jumper 0 6mm 10mm B 1 W316 0094101105 Jumper p0 6mm 12 5mm 1 W304 0094101105 Jumper p0 6mm 12 5mm 1 W400 0094101105 Jumper p0 6mm 12 5mm 1 W617 0094101105 Jumper p0 6mm 12 5mm 1 W490 0094101105 Jumper p0 6mm 12 5mm 1 W492 0094101105 Jumper p0 6mm 12 5mm 1 W893 0094101105 Jumper p0 6mm 12 5mm 1 W489 0094101105 Jumper p0 6mm 12 5mm 1 WA71 0094101105 Jumper p0 6mm 12 5mm 1 VD518 0094101105 Jumper p0 6mm 12 5mm 1 W480 0094101105 Jumper p0 6mm 12 5mm 1 WA81 0094101105 Jumper p0 6mm 12 5mm 1 W417 0094101105 Jumper p0 6mm 12 5mm 1 W213 0094101105 Jumper p0 6mm 12 5mm 1 W199 0094101105 Jumper p0 6mm 12 5mm 1 W999 0094101105 Jumper p0 6mm 12 5mm 1 W396 0094101105 Jumper p0 6mm 12 5mm 1 W302 0094101105 Jumper p0 6mm 12 5mm 1 W515 0094101105 Jumper p0 6mm 12 5mm 1 W393 0094101105 Jumper p0 6mm 12 5mm 1 W378 0094101105 Jumper p0 6mm 12 5mm 1 W399 0094101105 Jumper p0 6mm 12 5mm 1 W377 0094101105 Jumper p0 6mm 12 5mm 1 W382 0094101105 Jumper 0 6mm 12 5mm 1 W301 0094101105 Jumper p0 6mm 12 5mm 1 W523 0094101105 Jumper p0 6mm 12 5mm 1 W906 0094101106 Jumper p0 6mm 1
20. 0023 Resister RT13 1 6W 1KO 5 T 1 R440 0094100023 Resister RT13 1 6W 1KO 5 T 1 R249 0094100023 Resister RT13 1 6W 1KO 5 T 1 30 List of Parts Location Material code Parts Name Type Ot Unit Remark R918 0094100023 Resister RT13 1 6W 1KO 5 T 1 R908 0094100023 Resister RT13 1 6W 1KO 5 T 1 R540 0094100023 Resister RT13 1 6W 1KO 5 T 1 R611 0094100023 Resister RT13 1 6W 1KO 5 T 1 R541 0094100023 Resister RT13 1 6W 1KO 5 T 1 R198 0094100023 Resister RT13 1 6W 1KO 5 T 1 R199 0094100023 Resister RT13 1 6W 1KO 5 T 1 R221 0094100753 Resister RT13 1 6W 1 2KO 5 T 1 R225 0094100753 Resister RT13 1 6W 1 2KO 5 T 1 R248 0094100025 Resister RT13 1 6W 1 5k015 T 1 R529 0094100025 Resister RT13 1 6W 1 5k015 T 1 R503 0094100025 Resister RT13 1 6W 1 5kO 5 T 1 R268 0094100025 Resister RT13 1 6W 1 5k015 T 1 R250 0094100722 Resister RT13 1 6W 1 8KO 5 T 1 R245 0094100722 Resister RT13 1 6W 1 8KO 5 T 1 R117 0094100026 Resister RT13 1 6W 2 2KO 5 T 1 R259 0094100026 Resister RT13 1 6W 2 2KO 5 T 1 R802 0094100026 Resister RT13 1 6W 2 2KO 5 T 1 R803 0094100026 Resister RT13 1 6W 2 2KO 5 T 1 R537 0094100026 Resister RT13 1 6W 2 2KO 5 T 1
21. 00792 Resister RT13 1 6W 6800 5 T 1 R1008 0094100023 Resister RT13 1 6W 1KO 5 T 1 R1002 0094100753 Resister RT13 1 6W 1 2KO 5 T 1 R1003 0094100722 Resister RT13 1 6W 1 8KO 5 T 1 R1001 0094101103 Jumper 0 6mm 7 5mm B 1 0091800665 PCB PX65113 Q 1 R603 0094100033 Resister RT13 1 6W 10K0 5 T 1 R604 0094100033 Resister RT13 1 6W 10K0 5 T 1 VD605 0094400049 Diode 1N4148 T 1 VD601 0094400388 Diode EMO1Z T 1 VD602 0094400388 Diode EMO1Z T 1 VD603 0094400388 Diode EMO1Z T 1 VD604 0094400388 Diode EMO1Z T 1 V601 0094400552 Transistor 2SC536 E D A 1 V602 0094400552 Transistor 2SC536 E D A 1 C602 0094200433 Capacitor CD110X 16V 100uF M F 1 N601 0094101102 Jumper p0 6mm 5mm B 1 0091800664 PCB PX65112 Q 1 R707 0094100017 Resister RT13 1 6W 1000 5 T 1 R708 0094100017 Resister RT13 1 6W 1000 5 T 1 R709 0094100017 Resister RT13 1 6W 1000 5 T 1 R710 0094100017 Resister RT13 1 6W 1000 5 T 1 R711 0094100017 Resister RT13 1 6W 1000 5 T 1 R712 0094100017 Resister RT13 1 6W 1000 5 T 1 DZ701 0094400398 Diode RD9 1EB2 T 1 DZ702 0094400398 Diode RD9 1EB2 T 1 DZ703 0094400398 Diode RD9 1EB2 T 1 DZ704 0094400398 Diode RD9 1EB2 T 1 VD702 0094400858 Diode BAV21 T 4 VD703 0094400858 Diode BAV21 T 1 VD704 0094400858 Diode BAV21 T 1 R701 0094101142 Resister RS
22. 0100115 Heatsink MTBT2001BC Q 1 N602 0094400450 Transistor L7805CV 1 0090600012 Screw SJ2824 87 ST3 8F 1 RLP2 0094000314 relay LK1aF 12V 1 F601A 0090100037 jFuser holder MTBJ0001BB Q 1 F601B 0090100037 Fuser holder MTBJ0001BB Q 1 F601 0094000012 Fuse T4A 250V 1 X601 0094300110 Connect housing TJC1 2A 1 X602 0094300110 Connect housing TJC1 2A 1 X603 0090401273 Wire JT5351 C0239Q 1 TP1 0094500449 Transformer DB 1 3 08 1 R726 0094100128 Resister RF10 2W 68 J 05 E A 1 R727 0094100101 Resister RY17S 2W 33K J 05 E A 1 C702 0094202379 Capacitor 2200PF M AC400V 07 C A 1 C703 0094201356 Capacitor CT81 10 2B4 2KV 1000PF K 07 B A 1 C600 0094201717 Capacitor CD110X 35V 470uF M 05 E A 0 X702 0094300063 Connect housing TJC2 2A 1 CN701 0090800009 Wire JT8411 B3002Q 1 XS704 0094300089 CRT Socket GZS12 4 2 1 0090100016 Heatsink QHS 30175D 1 N701 0094400186 IC TDA6107Q 1 0090600012 Screw SJ2824 87 ST3 8F 1 0090203572 holder MTAC5057AC Q 1 0090600028 Screw SJ2825 87 ST3 10F 3 43 16 Damageable Parts List Damageable Parts List Material Parts Unit Price Reparation Code Name Type Qt unit USD Rate 96 Remark 0094000012 Fuse T4A 250V 1 0 04 0094004532 Tuner ENV59D69F1B 1 4 96 0094100128 Resister RF10 2W 68 J 05 E A 1 0 04 0094101082 Resister RF11 5W 5 1 J 17 L A 1 0 04 0094101119
23. 11 1 2W 1 8K0 20 T 1 R702 0094101142 Resister RS11 1 2W 1 8KQ 20 T 1 R703 0094101142 Resister RS11 1 2W 1 8KO 20 T 1 C706 0094200728 Capacitor CD110X 250V 10uF M F 1 R705 0094101102 Jumper p0 6mm 5mm B 1 W702 0094101105 Jumper p0 6mm 12 5mm B 1 R808 0094100969 Resister RY16 1W 5 1 J 15 C A 1 R809 0094100969 Resister RY16 1W 5 1 J 15 C A 1 R811 0094101539 Resister RY16 1W 1 50 5 15 C A 1 R810 0094102520 Resister RY17 2W 4700 5 20 C A 1 R916 0094101541 Resister RY17 2W 1000 5 20 C A 1 40 List of Parts Location Material code Parts Name Type Qt Uni Remark R907 0094100719 Resister RY17 2W 2700 5 20 C A 1 R206 0094100975 Resister RY17 2W 10K0 5 20 C A 1 R521 0094102447 Resister RY17 2W 47K0 5 20 C A 1 R515A 0094100101 Resister RY17S 2W 33K J 05 E A 1 R511A 0094100101 Resister RY17S 2W 33K J 05 E A 1 R927 0094100125 Resister RF10 2W 10 5 05 E A 1 R536 0094101109 Resister RF10 1W 10 5 12 C A 1 R535 0094101109 Resister RF10 1W 10 5 12 C A 1 R911 0094101174 Resister RJ15 1 2W 2 201590 12 D A 1 R807 0094101384 Resister RF11 1 2W 33045 17 A A 1 R806 0094100965 Resister RF10 1W 2 2 J 20 C A 1 R502 0094102441 Resister RX27 3
24. 17 Auto volume leveling X 40 Audio output power W 3 18 JACK AV input back 1 41 Total power input W 70 19 AV output back1 42 Voltage range V 180 250 20 DVD terminal 43 Power frequency Hz 50 21 S video jack y 44 Time of sleep timer MINS 180 22 Headphone socket X 45 Net weight KG 11 23 SCART socket M 46 Gross weight KG 12 47 Net dimension MM 440x355x335 48 Packaged dimension MM 475 415 380 49 Quantity for 20 container X 50 Quantity for 40 container X 51 Quantiry for 40 high container X Safety Precautions 4 Safety Precautions SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE Many electrical identify these parts and mechanical parts in this chassis have special safety related characteristics In the Schematic Diagram and Replacement Parts List It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X RADIATION Shock Fire or other Hazards Do not modify the original design without permission of the manufacturer General Guidance An Isolation Transformer should always be used during the servicing of a receiver whose chassis is not isolated from the AC power line Use a transformer of adequate power rating as this protects the technician from accidents that might result in personal injury caused by electrical shocks It will also protect the receiver and it s components fr
25. 200433 Capacitor CD110X 16V 100pF M F 1 C319 0094200433 Capacitor CD110X 16V 100pF M F 1 C547 0094200433 Capacitor CD110X 16V 100pF M F 1 C548 0094200433 Capacitor CD110X 16V 100pF M F 1 C515 0094200433 Capacitor CD110X 16V 100pF M F 1 C322 0094202224 Capacitor CD110X 25V 470uF M F 1 C310 0094202224 Capacitor CD110X 25V 470uF M F 1 C806 0094201265 Capacitor CD110 50V 22yF M F 1 C513 0094200858 Capacitor CD110X 50V 47uF M F 1 C534 0094200991 Capacitor CD110 35V 100uF M F 1 C526 0094200991 Capacitor CD110 35V 100uF M F 1 C921 0094202169 Capacitor CD112 160V 1 uF M F 1 C927 0094201385 Capacitor CD110 160V 2 2uF M F 1 C219 0094200995 Capacitor CL 11 63V 4700PF K F 1 34 List of Parts Location Materialcode Parts Name Type Qt Uni Remark C246 0094201232 Capacitor CL 11 100V 0 022y F K F 1 C598 0094201739 Capacitor CT1 B 500V 3900PF K F 1 C218 0094200738 Capacitor CL21X 100V 0 22yF J F 1 C221 0094200738 Capacitor CL21X 100V 0 22uF J F 1 C498 0094200738 Capacitor CL21X 100V 0 22uF J F 1 C499 0094200738 Capacitor CL21X 100V 0 224F J F 1 C412 0094200738 Capacitor CL21X 100V 0 22uF J F 1 C411 00
26. 2B4 1KV 470PF K 07 C A 1 C532 0094201055 Capacitor CT81 10B 2B4 1KV 470PF K 07 C A 1 C536 0094201057 Capacitor CT81 10B 2B4 2KV 470PF K 10 C A 1 C531 0094201186 Capacitor CT81 12 2B4 2KV 2200PF K 07 C A 1 C533 0094201753 Capacitor CT81 11 2E4 AC400V 1000PF M 10 C A 1 V101 0094400462 Transistor 25C2216 0 F 1 V509 0094400856 Transistor 2SB892 S F 1 L504 0094500325 inducer ZZ0008 15 A A 1 L901 0094500544 Inducer LX460 1 L905 0094500381 inducer 6 8mH K G 1 Z250 0094600083 trap XT6 5MHZ 1 Z251 0094600090 trap XT6 0MHZ 1 Z252 0094600084 trap XT5 5MHZ 1 VD507 0094400036 photo coupler PC817B 1 41 List of Parts Location Material code Parts Name Type Qt Unit Remark Z201 0094600082 Filter D38 9 1 U101 0094004532 Tuner ENV59D69F 1B 1 Z202 0094600245 Oscillator HC 49 U 1 N202 0094400636 IC CAT24C08P 1 N201 0094401534 JIC TDA9361 1 N401 0094400417 IC TC4053BP 1 T902 0094500984 Transformer JF0501 19930 1 T501 0094500300 Transformer BCK 08A5 1 T901 0094500341 Transformer JDT1904 1 L501 0094500384 Filter LCL 05 1 L502 0094500384 Filter LCL 05 1 RT501 0094400296 Resister
27. 3 8 1 0090600066 Nut GB6170 86 M3 1 0090100115 Heatsink MTBT2001BC Q 1 N506 0094400517 Transistor L7808CV 1 42 List of Parts Location Materialcode Parts Name Type Qt Uni Remark 0090600012 Screw SJ2824 87 ST3 8F 1 0090100115 Heatsink MTBT2001BC Q 1 N507 0094400450 Transistor L7805CV 1 0090600012 Screw SJ2824 87 ST3 8F 1 0094000230 Power switch KDC A04 1 0090401018 Mains cord JPRVVZ202DKDQ 1 0090400573 Wire JT23510D0095Q 1 0090202559 sleeve MTAS5015AN Q 4 X1003 0090400977 Wire JT3301 C0182Q 1 X1002 0090400976 Wire JT2301 C0154Q 1 SW1001 0094000440 Push switch KFC A06 21050 1 SW1002 0094000440 Push switch KFC A06 21050 1 SW1003 0094000440 Push switch KFC A06 21050 1 SW1004 0094000440 Push switch KFC A06 21050 1 SW1005 0094000440 Push switch KFC A06 21050 1 SW1006 0094000440 Push switch KFC A06 21050 1 VD1003 0094400804 JDiode HFR203 1 K1001 0094300155 Connect housing CYB 3 2 1DL2 1 K1002 0094300156 Connect housing CYB 3 2 1DL2 1 K1003 0094300154 JConnect housing CYB 3 2 1DL2 1 A1001 0094000216 Infrared sensor HS0038 1 ZX1001 10090401120 Wire JT4301 70204Q 1 0090800185 heatsink assembly BJB0116 Q 1 009
28. 5 Resister RT13 1 6W 100 5 T 1 R419 0094100065 Resister RT13 1 6W 100 5 T 1 R265 0094100820 Resister RT13 1 6W 220 5 T 1 29 List of Parts Location Material code Parts Name Type Qt Unit Remark R317 0094100820 Resister RT13 1 6W 220 5 T 1 R327 0094100820 Resister RT13 1 6W 220 5 T 1 R111 0094100820 Resister RT13 1 6W 220 5 T 1 R218 0094100797 Resister RT13 1 6W 330 5 T 1 R282 0094100066 Resister RT13 1 6W 470 5 T 1 R441 0094100066 Resister RT13 1 6W 470 5 T 1 R418 0094100805 Resister RT13 1 6W 680 5 T 1 R415 0094100783 Resister RT13 1 6W 820 5 T 1 R401 0094100783 Resister RT13 1 6W 820 5 T 1 R410 0094100783 Resister RT13 1 6W 820 5 T 1 R411 0094100783 Resister RT13 1 6W 820 5 T 1 R412 0094100783 Resister RT13 1 6W 820 5 T 1 R413 0094100783 Resister RT13 1 6W 820 5 T 1 R207 0094100017 Resister RT13 1 6W 1000 5 T 1 C303 0094100017 Resister RT13 1 6W 1000 5 T 1 C302 0094100017 Resister RT13 1 6W 1000 5 T 1 R208 0094100017 Resister RT13 1 6W 1000 5 T 1 R209 0094100017 Resister RT13 1 6W 1000 5 T 1 R237 0094100017 Resister RT13 1 6W 1000 5 T 1 R302 0094100017 Resister RT13 1 6W 1000 5
29. 5 80 8K 80 8K 44 AUD OUT AMOUT 3 4 1 2M 1 66M 45 INSS W2 BL 3 1 0 72K 0 71K 46 R2 V IN 2 6 1 88M 2 12M 47 G2 Y IN 2 6 1 86M 2 12M 48 B2 U IN 2 6 1 85M 2 16M 49 BCL IN 2 3 321 5K 4 68M 50 BLK IN 5 1 23 2K 23 1K 51 R OUT 3 3 5 6K 5 54K 52 G OUT 3 3 5 5K 5 48K 53 B OUT 3 3 5 5K 5 5K 54 VDD A 3 1 30K 26 2K 55 VPE 0 0 0 23 Circuit Explanation Function Working Ground Resistance R Step Voltage Positive Negative V CQ CQ 56 VDD C 3 1 30K 26 2K 57 OSC GND 0 15 4 14 58 XTAL IN 1 5 1 17M 262K 59 XTAL OUT 1 6 0 74M 227K 60 RESET 0 0 0 61 VDDP 3 1 30K 26 2K 62 AV1 4 8 12 8K 12 9K 63 AV2 4 8 12 8K 12 9K 64 IRin 4 9 36 9K 34 6K 2 Analysis of common path circuits High frequency television signals received via an antenna or transmitted through a cable TV system to the input terminal of the high frequency tuner U101 are processed for tuning and high frequency amplifying and mixing then a 38 9MHz image intermediate frequency and 31 5MHZ sound intermediate frequency signal will be released at the IF terminal of TU101 to b of the transistor V101 where signals are amplified to compensate for the insertion losses of the sound surface wave filter Single or dual ended input is used for the sound surface wave filters Z101 of this appliance according to system properties Intermediate frequency signals will be t
30. 5mm B 1 W414 0094101106 Jumper p0 6mm 15mm B 1 W885 0094101106 Jumper p0 6mm 15mm B 1 W513 0094101106 Jumper p0 6mm 15mm B 1 W801 0094101106 Jumper p0 6mm 15mm B 1 W504 0094101106 Jumper q0 6mm 15mm B 1 W507 0094101106 Jumper p0 6mm 15mm B 1 W514 0094101106 Jumper p0 6mm 15mm B 1 W703 0094101106 Jumper 0 6mm 15mm B 1 W315 0094101106 Jumper p0 6mm 15mm B 1 W110 0094101106 Jumper p0 6mm 15mm B 1 W907 0094101106 Jumper 0 6mm 15mm B 1 W899 0094101106 Jumper p0 6mm 15mm B 1 W898 0094101106 Jumper p0 6mm 15mm B 1 W501 0094101107 Jumper q0 6mm 17 5mm 1 W905 0094101107 Jumper 0 6mm 17 5mm 1 W210 0094101107 Jumper p0 6mm 17 5mm 1 W297 0094101107 Jumper q0 6mm 17 5mm 1 39 List of Parts Location Materialcode Parts Name Type Qt Unit Remark W319 0094101107 Jumper 0 6mm 17 5mm B 1 W512 0094101107 Jumper q0 6mm 17 5mm B 1 W215 0094101107 Jumper q0 6mm 17 5mm B 1 W520 0094101107 Jumper p0 6mm 17 5mm B 1 0090100078 Rivet 92 3mm 3 0mm 14 0090100079 Rivet p1 6mm 3 0mm 10 0091800637 PCB PX75106 Q 1 R1004 0094100132 Resister RT13 1 6W 1800 5 T 1 R1005 0094100020 Resister RT13 1 6W 4700 5 T 1 R1009 00941
31. 8 of N801 put out heater voltage 6 3V pin 6 of N801 supply sync signal for N201 pin 9 of N801 put out Horizontal return trace pulse via rectification filt and obtain DC 180V for video amplifying circuit supply power 6 Analysis of video amplifying circuits The video amplifying circuits are comprised of N701 TDA6107Q and peripheral components B G and R signals output from N201 51 52 and 53 go into pin2 pin3 pin1 of N701 TDA6107Q has 3 video power transistor are available for amplifying the input R G B and they go into cathode of CRT Pin 5 of N501 is used to check black balance output and checking signal go into pin 50 of N201 and adjust picture black balance White balance adjustment is completed through control of an IC serial bus control system Information introducing functions and testing data for TDA6107Q maintenance is listed in Table 6 25 Circuit Explanation Table 6 Working Ground Resistance R Step FUNCTION Voltage Positive Negative V CQ CQ 1 B IN 2 9 5 44K 5 43K 2 R IN 2 9 5 44K 5 45K 3 G IN 2 9 5 38K 5 39K 4 GND 0 0 0 5 F B 3 8 13 24K 13 3K 6 VCC 164 9 34K 30K 7 G OUT 114 5 2 1M 3 24M 8 R OUT 114 2 1 8M 3 22M 9 B OUT 113 4 2 1M 3 22M T Analysis of switching mode power circuits The installed switching mode power source is a typical autonomous pulse switch power source The circuits are comprised of IC N501 switching mode transformer T501
32. 94200738 Capacitor CL21X 100V 0 22uF J F 1 C303 0094201267 Capacitor CL 11 100V 0 015p F K F 1 C313 0094201267 Capacitor CL11 100V 0 015uF K F 1 C514 0094201464 Capacitor CL21X 100V 0 047 uF J F 1 C232 0094201530 Capacitor CL21X 63V 0 1 uF K F 1 C103 0094200096 Capacitor CL21X 100V 0 1 uF J F 1 C215 0094200096 Capacitor CL21X 100V 0 1 uF J F 1 C241 0094200096 Capacitor CL21X 100V 0 1 uF J F 1 C571 0094200096 Capacitor CL21X 100V 0 1 uF J F 1 C253 0094200096 Capacitor CL21X 100V 0 1pF J F 1 C254 0094200096 Capacitor CL21X 100V 0 1pF J F 1 C201 0094200096 Capacitor CL21X 100V 0 1pF J F 1 C225 0094200096 Capacitor CL21X 100V 0 1 uF J F 1 C327 0094200096 Capacitor CL21X 100V 0 1 uF J F 1 C920 0094200096 Capacitor CL21X 100V 0 1 uF J F 1 C317 0094200096 Capacitor CL21X 100V 0 1pF J F 1 L102 0094500350 Inducer LGA0307 1uH 10 T 1 L271 0094500285 inducer LGA0307 10uH 10 T 1 L270 0094500285 inducer LGA0307 10uH 10 T 1 L201 0094500285 inducer LGA0307 10uH 10 T 1 L205 0094500285 inducer LGA0307 10uH 10 T 1 L260 0094500285 inducer LGA0307 10uH 10 T 1 L101 0094500713 inducer LGA0204 10uH 10 R 1 L401 0094500713 inducer LGA0204 10uH 10 R 1 L402 0094500713 inducer LGA0204 10uH 10 R 1 L403 0094500713 inducer LGA0204 10uH 10 R 1 L404 0094500713 inducer LGA0204 10
33. A 7W 1 50 5 15 J A 1 R912 0094102373 Resister RX27 6 5W 3 901590 15 P A 1 N571 0094401185 Diode TL431 1 C535 0094201011 Capacitor CD110 25V 1000uF M 05 E A 1 C306 0094201011 Capacitor CD110 25V 1000uF M 05 E A 1 C805 0094201546 Capacitor CD110 35V 220uF M 05 E A 1 C537 0094201015 Capacitor CD110 35V 470uF M 05 E A 1 C917 0094201285 Capacitor CD110 25V 330uF M 05 F A 1 C916 0094201289 Capacitor CD110 63V 100uF M 05 F A 1 C522 0094202152 Capacitor CD287 160V 220UF M 07 E A 1 C909 0094201397 Capacitor CD110 250V 10uF M 05 G A 1 C915 0094202156 Capacitor CD287 250V 22uF M 05 E A 1 C511 0094201723 Capacitor CD293 450V 150uF M 10 G A 1 C501 0094201440 Capacitor CL21 AC250V 0 1uF K 20 H A 1 C502 0094201440 Capacitor CL21 AC250V 0 1uF K 20 H A 1 C918 0094201665 Capacitor CBB21 400V 0 39uF J 20 B A 1 C907 0094201384 Capacitor CBB81 1600V 7500PF J 20 B A 1 C906 0094201057 JCapacitor CT81 10B 2B4 2KV 470PF K 10 C A 1 C908 0094201059 Capacitor CT81 10B 2B4 2KV 680PF K 10 C A 1 C506 0094201071 Capacitor CT81 10B 2B4 1KV 1000PF K 07 C A 1 C507 0094201071 Capacitor CT81 10B 2B4 1KV 1000PF K 07 C A 1 C508 0094201071 Capacitor CT81 10B 2B4 1KV 1000PF K 07 C A 1 C509 0094201071 Capacitor CT81 10B 2B4 1KV 1000PF K 07 C A 1 C926 0094202321 Capacitor CT81 B 1KV 220PF K 07 C A 1 C905 0094201055 Capacitor CT81 10B 2B4 1KV 470PF K 07 C A 1 C521 0094201055 Capacitor CT81 10B 2B4 1KV 470PF K 07 C A 1 C525 0094201055 Capacitor CT81 10B
34. A2 NICAM MONO SOUND SELECTION PSTD PICTURE MODE SELECTION SSTD NO USED TUNE TUNEMENU SELECTION TELETEXTSUBTITLE TVITELETEXT ENTERING EX ITING TO REVEAL CONCEALED TELETEXT TELETEXT ZOOM TELETEXT PAGE HOLD TELETEXT TV MIX MODE TY TELETEXT ALTERATION TM E DISPLAY N TV MODE SUBCODE SW ITCH NOTE EASTIWEST The function of selecting menu button on the rem ote controller is the same as that of program up down button on the TV set The fuction of identifying menu button on the remote controller is the same as thatof volume up down button on the TV set Pe LE Program Diagram 9 Program Diagram Insert the power plug into the power line socket and insert the antenna plug into the antenna socket on the rear panel Press down the power switch of the TV set The red indicator light goes on If no picture appears press the button D on the remote controlle Follow the steps below A Program preset 1 Auto searching and storing program Press MENU button on the remote controller then use the CH CH key to call up the tune program menu on the screen Then Press the menu VOL VOL item to adjust it Use the CH CH key to select the bar auto search program then press the VOL VOL to make sure If you want to stop press the key MENU Manual search and fine tune Press MENU button the
35. Capacitor CT1 06 2B4 63V 1000pF K F 1 C228 0094200981 Capacitor CT1 06 2B4 63V 1000pF K F 1 C229 0094200981 Capacitor CT1 06 2B4 63V 1000pF K F 1 C248 0094200981 Capacitor CT1 06 2B4 63V 1000pF K F 1 C235 0094201178 Capacitor CT1 08 2B4 63V 3300PF K F 1 C290 0094201462 Capacitor CL21X 63V 0 1 uF J F 1 C291 0094201462 Capacitor CL21X 63V 0 1uF J F 1 C260 0094201462 Capacitor CL21X 63V 0 1uF J F 1 C805 0094201462 Capacitor CL21X 63V 0 1uF J F 1 C880 0094201462 Capacitor CL21X 63V 0 1uF J F 1 C102 0094201463 Capacitor CL21X 63V 0 22uF J F 1 C809 0094201458 Capacitor CL11 63V 0 047 uF J F 1 C267 0094201457 Capacitor CL 11 63V 0 033pF J F 1 C271 0094201456 Capacitor CL11 63V 0 022 UF J F 1 C110 0094201351 Capacitor CT 1 08 2F4 63V 0 01 pF K F 1 C326 0094201351 Capacitor CT1 08 2F4 63V 0 01 pF K F 1 C330 0094201351 Capacitor CT1 08 2F4 63V 0 01 pF K F 1 C325 0094201351 Capacitor CT1 08 2F4 63V 0 01 pF K F 1 C112 0094201351 Capacitor CT 1 08 2F4 63V 0 01 pF K F 1 C115 0094201351 Capacitor CT1 08 2F4 63V 0 01 pF K F 1 C206 0094201351 Capacitor CT1 08 2F4 63V 0 01 pF K F 1 C132 0094201351 Capacitor CT1 08 2F4 63V 0 01 pF K F 1 C307 0094201351 Capacitor CT1 08 2F4 63V 0 01 pF K F 1 C302 0094201351 Capacitor CT1 08 2F4 63V 0 01 pF K F 1 C312 0094201351 Capacitor CT1 08 2F4 63V 0 01 p
36. F K F 1 C316 0094201351 Capacitor CT1 08 2F4 63V 0 01 pF K F 1 C199 0094201351 Capacitor CT1 08 2F4 63V 0 01 pF K F 1 C803 0094201351 Capacitor CT1 08 2F4 63V 0 01 pF K F 1 C912 0094200912 Capacitor CK45B 500V 470PF K F 1 C910 0094201740 Capacitor CT1 B 500V 1000PF K F 1 C902 0094201639 Capacitor CT1 B 500V 4700PF K F 1 C406 0094200043 Capacitor CD110 50V 1 uF M F 1 C407 0094200043 Capacitor CD110 50V 1 uF M F 1 C230 0094200043 Capacitor CD110 50V 1 uF M F 1 C242 0094200043 Capacitor CD110 50V 1 uF M F 1 W280 0094200043 Capacitor CD110 50V 1uF M F 1 33 List of Parts Location Material code Parts Name Type Qt Unit Remark C239 0094200043 JCapacitor CD110 50V 1 uF M F 1 C226 0094200044 Capacitor CD110 50V 2 2uF M F 1 C329 0094200044 Capacitor CD110 50V 2 2uF M F 1 C315 0094200044 Capacitor CD110 50V 2 2uF M F 1 C275 0094200992 Capacitor CD110 50V 4 7uF M F 1 C240 0094200992 Capacitor CD110 50V 4 7uF M F 1 C101 0094200992 Capacitor CD110 50V 4 7uF M F 1 C210 0094200046 Capacitor CD110 50V 10uF M F 1 C925 0094200042 Capacitor CD110 50V 0 22uF M F 1 C105 0094200046 Capacitor CD110 50V 10uF M F 1 C106 0094200046 Capacit
37. Haier HT 3718 COLOUR TELEVISION Service Manual Model HT 3718 CYPRUS 509 000000 Features 218 programs stored Auto correcting black balance Blue extension Green improvement Multi picture modes Fast teletext Audio video input S Video input SCART terminal Hai er Group NO M EU CY HT 3718 9361 Edition 2003 5 20 10 11 12 13 14 15 16 17 CONTENTS Contents ELLE kadako 1 Product Code illumination and Series Introduction 2 FeatureS 3 Safety Precautions 4 Warning and Cautions 5 Net dimension 11 Parts and Functions 12 Remote Controller Functions 13 Program Diagram 14 Maintenance Service and Trouble shooting 15 Circuit Diagram 18 Circuit Explanation 22 Adjustment
38. R242 0094100027 Resister RT13 1 6W 2 7KO 5 T 1 R813 0094100027 Resister RT13 1 6W 2 7KO 5 T 1 R126 0094100028 Resister RT13 1 6W 3 3KO 5 T 1 R231 0094100028 Resister RT13 1 6W 3 3KO 5 T 1 R118 0094100028 Resister RT13 1 6W 3 3KO 5 T 1 R211 0094100028 Resister RT13 1 6W 3 3KO 5 T 1 R215 0094100028 Resister RT13 1 6W 3 3KO 5 T 1 R216 0094100028 Resister RT13 1 6W 3 3KO 5 T 1 R220 0094100028 Resister RT13 1 6W 3 3KO 5 T 1 R212 0094100028 Resister RT13 1 6W 3 3KO 5 T 1 R213 0094100028 Resister RT13 1 6W 3 3KO 5 T 1 R299 0094100028 Resister RT13 1 6W 3 3KO 5 T 1 R228 0094100028 Resister RT13 1 6W 3 3KO 5 T 1 R232 0094100028 Resister RT13 1 6W 3 3KO 5 T 1 R931 0094100028 Resister RT13 1 6W 3 3KO 5 T 1 R901 0094100071 Resister RT13 1 6W 3 9KO 5 T 1 R108 0094100029 Resister RT13 1 6W 4 7KO 5 T 1 R258 0094100029 Resister RT13 1 6W 4 7KO 5 T 1 R329 0094100029 Resister RT13 1 6W 4 7KO 5 T 1 R331 0094100029 Resister RT13 1 6W 4 7KO 5 T 1 R304 0094100029 Resister RT13 1 6W 4 7KO 5 T 1 R321 0094100029 Resister RT13 1 6W 4 7KO 5 T 1 R119 0094100029 Resister RT13 1 6W 4 7KO 5 T 1 R210 0094100029 Resister RT13 1 6W 4 7KO 5 T 1 R227 0094100023 Resister RT13 1 6W 1KO 5 T 1 R925 0094100721 Resister RT13 1 6W 5 6KO 5 T 1 R101 0094100031 Resister RT13 1 6W 6 8KO 5
39. S NE 5 De Tr Puzo pas ies SIE Xn PRB is lk Jane A qu L lem gn sey NEC enpate ee NEC a va haus CAEN sw var vaz slo o una gaga gus mus AT os vns N202 E 2 E pe DN wi DAB ee Se e ss AT24004 08 a io T E tv AW E es re KO A xc GO xa gt Gus RAB 1 Sas cas e m EEan H 12 BUA me A Te lelo dus EO ZO EO k en GA DZ m a ET de Fe m b E es pes ZO e EU tl ba E ww wo Le TK 2 sa m TDO ac sup SSK os coi EEE 5 0K ra Kaso E mo gae 2 opar EU vs an E cus 100 20 ZO eu E x mE GD S 19061 TU Lae E E EE E uw Timi ng asis Ge Sed nf sv DATA i el 226 li al i ass Vibo cn d SO i ax an i LN MIB 22 eas uen de n sam E es f 1099 e ev I enc ller ZO uv E SE ow d cus aw ce ds our E on ge Le 22 I o ms GE ee fo ome LI s ba pn m T T E e Mec jilma Ea ez Dr e7 pes quen pen u spar Lak nox x ex Em x n 8 a al ki 8 a a a El El El E 5 E z 2 a 2 gt el el BM Pl bi E Standby aa 16v 1u Nor T0361 que an woar IF Go IS Sa L EN KE de AY ax ste o SE P tn ib ons g ds B tu as El E E vue w d ES reso 2 d i i ds T zus B El El t E El a E 3 E g 3 si El 3 2 m E E 20 Es Vo ES 2 a A ag 5 8 s 8 s E 5 du zo rs ga en pro kium RE i e cuo ess lien 1 jeso vu s d ve E kez m MES toor o I worn fu p oo BEE eur b ak EA L l wo ile m 130 Ine 100 legs yes EA sizo rt eus
40. ad jas en EO a cu 3 Elo vos Gg ass s Ka oss dk sex s OO WOP 4708 gt E asis PEZ LSK edid 4IK EA 27K GST RIP 3 s si 2 s EZ E ess al RET N l m5 c 2 c lu Bao m joco seni que le Es Ys RIO mo edro al gt SK sa zo LSK E 3 E cus 100 2w cu Lr Tren de 45V1 0 22uF i 92 5 s E lo Tc So e con MEN ADV c L kids VIN ik ESO EO AN ren 1 qe ad i BERTI E pen desa d Seek uso A Q 1UZOVO 3 E uo cus f T asit av KI 2 J 2 adi Le esu E 1905 2 i r 3 be Eko S Eu L i Gsm L xni d s L 5 E om jero LN d H EZ Gos SD vm E E ger oy en e L Tun 1008 i L d xar p di A E EI qeu on le esu p NE HINNER voor os rm dax N en bak usa T 3008 fev P mar iov ul SOV HEU eer Ton Ln 2 erde L d v Fu jos jesus E E 2 6 mt 22 0 5W m Lus T 14 d me IS Za La gt e A ega it EK RES was du Anar sov Je a p eie A amam _ 08A82M FARSA m x 2 IIC aM Sr 177 SUR decus et ROS LOK romane VT GE m asc TI oar ev Our LTZ B 535 10 q mes dien AED MED EZIK 1 2 3 5 5 6 7 s 10 u T 19 Circuit Block Diagram 11 2 Circuit Block Diagram NI Antenna Amplifier Sound Power Picture Sound IF Amplifier Tuner Video and audio signal EMEN Processing RGB Output Circuits and H amp V Sync pulse segregation Horizontal Scan Output PC BUS Vertical Scan Output Audio Video In Out Infrared Receiver Remote Controller 20 Circuit Dia
41. c charge buildup or exposure of the assembly c Use only a grounded tip soldering iron to solder or unsolder ES devices d Use only an anti static type folder removal device Some solder removal devices not classified as anti static can generate electrical charges sufficient to damage ES devices e Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ES devices f Do not remove a replacement ES device from its protective package until immediately before you are ready to install it Most replacement ES devices are packaged with leads electrically shorted together by conductive foam aluminum foil or comparable conductive material g Immediately before removing the protective material from the leads of a replacement ES device touch the protective material to the chassis or circuit assembly into which the device will be installed CAUTION Be sure no power is applied to the chassis or circuit and observe all other safety precautions h Minimize bodily motions when handling unpackaged replacement ES devices Otherwise even some normally harmless motions such as mutual brushing of your clothes fabric or lifting of your foot from a carpeted floor might generate static electricity sufficient to damage an ES device General Soldering Guidelines a Use a grounded tip low wattage soldering iron and appropriate tip size and shape that will maintain tip temperature within the range of 500
42. d or any of its electrical assemblies unless all solid state device heat sinks are correctly installed 5 8 Always connect the test receiver ground lead to the receiver chassis ground before connecting the test receiver positive lead Always remove the test receiver ground lead last 5 9 Use with this receiver only the test fixtures specified in this service manual CAUTION Do not connect the test fixture ground strap to any heat sink ir warning and Cautions Electrostatic ally Sensitive ES Devices Some semiconductor solid state devices can be damaged easily by static electricity Such components are usually called Electrostatic ally Sensitive ES Devices Examples of typical ES 6 Warning and Cautions devices are integrated circuits and some field effect transistors and semiconductor chip components The following techniques should be used to help reduce the incidence of component damage caused by static electricity a Immediately before handling any semiconductor component or semiconductor equipped assembly drain off any electrostatic charge on your body by touching a known earth ground Alternatively obtain and wear a commercially available discharging wrist strap device which should be removed to prevent potential shock prior to applying power to the unit under test b After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent electrostati
43. de RD8 2EB3 T 1 DZ901 0094401533 Diode MTZJ15B T 1 VD802 0094400252 Diode MTZJ12B T 1 VD907 0094400328 Diode ES1 T 1 VD905 0094401113 Diode RU3A T 1 VD511 0094401113 Diode RU3A T 1 VD906 0094400329 JDiode EU2Z T 1 VD516 0094400329 JDiode EU2Z T 1 VD515 0094400329 JDiode EU2Z T 1 VD512 0094400329 Diode EU2Z T 1 VD503 0094400453 Diode RM11C T 1 VD504 0094400453 JDiode RM11C T 1 VD505 0094400453 JDiode RM11C T 1 VD506 0094400453 Diode RM11C T 1 VD520A 0094400052 Diode TB1206 T 1 VD520 0094400059 JDiode TERB4304 T 1 V331 0094400586 _ Transistor 2SA608 E D A 1 V958 0094400586 _ Transistor 2SA608 E D A 1 V508 0094400552 Transistor 2SC536 E D A 1 V332 0094400552 _ Transistor 2SC536 E D A 1 V333 0094400552 Transistor 2SC536 E D A 1 V102 0094400552 Transistor 2SC536 E D A 1 V571 0094400552 Transistor 2SC536 E D A 1 V403 0094400552 __ Transistor 2SC536 E D A 1 V250 0094400552 Transistor 2SC536 E D A 1 V252 0094400552 Transistor 2SC536 E D A 1 V255 0094400552 _ Transistor 2SC536 E D A 1 V256 0094400552 Transistor 2SC536 E D A 1 V299 0094400552 Transistor 2SC536 E D A 1 V401 0094400552 Transistor 2SC536 E D A 1 V402 0094400552 Transistor 2SC536 E D A 1 V540 0094400552 Transistor 2SC536 E D A 1 V541 0094400552 Transistor 2SC536 E D A 1 V507 0094400552 _ Transist
44. e inserted and then bent flat against the circuit foil When holes are of slotted type the following technique should be used to remove and replace the IC When working with boards using the familiar round hole use the standard technique as outlined Removal Desolder and straighten each IC lead in one operation by gently prying up on the lead with the soldering iron tip as the solder melts Draw away the melted solder with an anti static suction type solder removal device or with solder braid before removing the IC Replacement Carefully insert the replacement IC in the circuit board Carefully bend each IC lead against the circuit foil pad and solder it Clean the soldered areas with a small wire bristle brush It is not necessary to reapply acrylic coating to the areas Small Signal Discrete Transistor Removal Replacement Remove the defective transistor by clipping its leads as close as possible to the component body Bend into a U shape the end of each of three leads remaining on the circuit board Bend into a U shape the replacement transistor leads Connect the replacement transistor leads to the corresponding leads extending from the circuit board and crimp the U with long nose pliers to insure metal to metal contact then solder each connection Power Output Transistor Device Warning and Cautions Removal Replacement Heat and remove all solder from around the transistor leads Remove the heat sink mount
45. f the appliance and go back to the normal state Maintenance menu Table 8 Item Specifications Default Value Md Mark 5PAR Horizontal parabola i 5BOW Horizontal Bow 5HSH Horizontal shife 40 5EWW EW width ii 5EWP EW parabola 5UCR EW upper corner parabola 5LCR EW lower corner parabola 5EWT EW trapezium 5VSL Vertical slope 42 5VAM Vertical amplitude 55 5SCL S Correction 21 5VSH Vertical Shift 28 5VOF OSD Vertical Offset 40 HOF OSD Horizontall Offset 40 VX Vertical Zoom GPAR Horizontal parabola 6BOW Horizontal Bow 6HSH Horizontal shife 6EWW EW width 6EWP EW parabola 6UCR EW upper corner parabola 6LCR EW lower corner parabola GEWT EW trapezium 6VSL Vertical slope 6VAM Vertical amplitude 6SCL S Correction 6VSH Vertical Shift evoF OSD Vertical Offset HOF OSD Horizontall Offset VX Vertical Zoom RED Black level offset R 32 GRN Black level offset G 32 i Maintenance Service and Trouble shooting ilem Specifications Default Value T ark WPR White point R 31 A WPG White point G 26 WPB White point B 31 YDFP Y Delay for PAL 7 YDFN Y Delay for NTSC i YDAV Y Delay for AV i TOP AGC Take Over point 32 i VOL Volume 44 9874 Output Gain of TDA9874A 26 AVLT TDA9874A AVL decay time 1 9860 Sub volu
46. gram 11 3 PCB 21 Circuit Explanation 12 Circuit Explanation A1 A2 A3 HT 3718 color TV set composed of the following sections 1 Small signal processing super monolithic integrated circuits N201 TDA9361 and memory N901 AT24C08 2 Sound power amplifying integrated circuits N301 N302 LA4285 3 Horizontal and Vertical scan output circuits Vertical output integrated circuits N801 TDA8357 Horizontal output transistor V902 25D1651 Horizontal flying back transformer T902 JF0501 19930 4 Switch power supply switch transformer T501 BCK 08A5 power transistor N501 5Q0765 5 AV switch integrated circuits N401 HEF4053 Main integrated circuits 1 TDA9361 Microprocessor Picture IF sound IF video processing H and V Scan color decoding 2 LA4285 Vertical output integrated circuits 3 TDA8357 Sound power amplifying integrated circuits Electrical circuit analysis 1 Microprocessor and Small signal processing super monolithic integrated circuits TDA9361 TDA9361 is super large integrated circuit decoder containing intermediate image amplifying teletext processing intermediate sound amplifying horizontal and vertical scan small signal processing color decoding hi pressure tracing and over load protection I C bus control Information introducing functions and testing data for maintenance is listed in Table 1 Table 1 Working Ground Resistance R
47. ing screw if so equipped Carefully remove the transistor from the heat sink of the circuit board Insert new transistor in the circuit board Solder each transistor lead and clip off excess lead Replace heat sink Diode Removal Replacement Remove defective diode by clipping its leads as close as possible to diode body Bend the two remaining leads perpendicularly to the circuit board Observing diode polarity wrap each lead of the new diode round the corresponding lead on the circuit board Securely crimp each connection and solder it Inspect on the circuit board copper side the solder joints of the two original leads If they are not shiny reheat them and if necessary apply additional solder Fuse and Conventional Resistor Removal Replacement a Clip each fuse or resistor lead at top of the circuit board hollow stake b Securely crimp the leads of replacement component around notch at stake top c Solder the connections CAUTION Maintain original spacing between the replaced component and adjacent components and the circuit board to prevent excessive component temperatures Circuit Board Foil Repair Excessive heat applied to the copper foil of any printed circuit board will weaken the adhesive that bonds foil to the circuit board causing the foil to separate from or lift off the board The following guidelines and procedures should be followed whenever this condition is encountered At IC Connections To repa
48. ir a defective copper pattern at IC connections use the following procedure to install a jumper wire on the copper pattern side of the circuit board Use this technique only on IC connections a Carefully remove the damaged copper pattern with a sharp knife Remove only as much copper as absolutely necessary b Carefully scratch away the solder resist and acrylic coating if used from the end of the remaining copper pattern c Bend a small U in one end of a small gauge jumper wire and carefully crimp it around the IC Warning and Cautions pin Solder the IC connection d Route the jumper wire along the path of the out away copper pattern and let it overlap the previously scraped end of the good copper pattern Solder the overlapped area and clip off any excess jumper wire At other connections Use the following technique to repair the defective copper pattern at connections other than IC Pins This technique involves the installation of a jumper wire on the component side of the circuit board a Remove the defective copper pattern with a sharp knife Remove at least 1 4 inch of copper to insure that a hazardous condition will not exist if the jumper wire opens b Trace along the copper pattern from both sides of the pattern break and locate the nearest component that is directly connected to the affected copper pattern c Connect insulated 20 gauge jumper wire from the lead of the nearest component on one side of
49. l bus processing technology The adjustment points are fewer and the adjustment is simpler The adjustment method is as follows 13 1 B 110 0 3V adjustment 1 Switch on the power and connect PAL circular signals to the tuner 2 Adjust variable resistor RP501 until the voltage of the main power is 110 0 3V 13 2 Screen voltage adjustment 1 Switch on the power and receive PAL system circular signal Warm up the TV set for 15 min 2 Enter the adjustment D state Press the button then a bright horizontal line appears Adjust screen potentiometer to let the horizontal line just appears 13 3 Focus adjustment 1 Receive electronic circular signal 2 Set picture mode on standard mode 3 Adjust focus potentiometer until the optimum picture is achieved 13 4 White balance adjustment 1 Setthe picture mode on standard mode 2 Enter the Factory state and adjust WPR WPG WPB RED and GRN 3 Coordinate of reference white color X 0 281 Y 0 311 13 5 Adjustment of horizontal and vertical position and size 1 Switch on the power and connect the signals to the tuner to receive PAL NTSC system circular signal 2 Enter the Factory state Adjust 5HSH to change the horizontal position and 5VAM to change the vertical position Adjust 5VSH to change the vertical size until the vertical size is 90 9296 Horizontal size is related to the capacitor C906 Hold the horizontal size is 90 9296 13 6 Adjustment of character p
50. le 4 Working Ground Resistance R NO Function Voltage Positive Negative VO Q Q 1 INT 6 27 54 4K 53 3K 2 GND 0 2 6 0 9 EXT 5 51 54 1K 53 1K 4 SW 1 21 86 2K 86 6K 5 VOL 4 19 20K 20 5K 6 FL1 9 21 13 5K 13 3K 7 NFB 9 19 32 5K 32 3K 8 GND 0 3 1 5 9 OUT 9 25 44K 42K 10 VCC 20 0 4M 0 4M 5 Analysis of horizontal sync and horizontal scan output circuits As the horizontal oscillation circuit is installed inside N201 TDA9361 Some brightness signals including compound sync signals are transmitted to the internal sync segregation circuits where horizontal sync and vertical sync pulses are segregated C219 472 R235 15K C220 1u are connected to N201 17 are phase lock loop filters Horizontal pumping signals are transmitted from 33 of N201 to horizontal promotion transistor V901 25D2383 and then drive the H DRIVE transformer After being amplified through it switches power transistor to control the horizontal scan of the electronic beam C918 is a horizontal S correction capacitor and L901 is for horizontal linear inductor T902 is a horizontal output transformer VD908 R932 R267 R266 C229 are ABL circuits R930 R931 VD910 C925 consist of beam current limit circuit H return trace pulse from pin 4 and pin 3 of horizontal output transformer 1444 via rectification filt and obtain DC voltage 16 5V and 46V and feedback to pin 3 and pin6 of N801 for forward and return trace Vertical IC to supply power Pin
51. me of TDA9860 59 69 IFFS Vision IF 2 HDOL Cathode drive level 5 AGC IF AGC speed 1 VF2B VG2 Brightness 50 OCON Listen Contrast 0 OBRI Listen Brightness 0 OCOL Listen Color 50 OSHP Listen Sharpness 50 1CON Soft Contrast 45 1BRI Soft Brightness 45 1COL Soft Color 50 1SHP Soft Sharpness 50 2CON Standard Contrast 70 2BRI Standard Brightness 50 2COL Standard Color 60 2SHP Standard Sharpness 50 3CON Dynamic Contrast 80 3BRI Dynamic Brightness 50 3COL Dynamic Color 70 3SHP Dynamic Sharpness 50 OP1 Option 1 177 OP2 Option2 127 OP3 Option3 255 OP4 Option4 75 OP5 Option5 183 OP6 Option6 89 OP7 Option7 1 You can change the DATA with mark when necessary Maintenance Service and Trouble shooting No light and sound Check to see if Fuse3 is normal Check VD503 VD Checkto see 110V 180V 506 C511 N501 etc etc voltage is normal Normal Abnormal Checkto see ifthe Testto see all terminal colector voltage of Resistance of load Abnormal Normal Abnormal Normal Check to see Check the control Check to see if if 8v voltage of VD512 rectifying tube 5v is normal or CPU power is normal Abnormal Normal Y Abnormal Check The failure of Change Check the N507 N508 horizontal unit or N201 Normal rectifying tube Loader Circuit Diagram 11 Circuit Diagram
52. n use the CH CH key to call up the tune program menu on the screen Then Press the menu VOL VOL item to adjust it Use the CH CH key to select the bar Manual search program then press the VOL VOL to make sure 3 Deleting channel number Press Program up down buttons to select a channel to skip Press MENU to call Menu then use the CH CH key to call up the tune program menu on the screen Then Press the menu VOL VOL item to adjust it Use the CH CH key to select the bar Cannal number then press the VOL VOL to make sure Enter the number that you do not want to see Then Then select SKIP and select SKIP to ON Now the program number is deleted Repeat the above steps and select SKIP to OFF the deleted program number can be resumed B Volume tuning Press VOLUME buttons VOL to increase and VOL to decrease the volume C Personal preference settings Picture modes Press SELC PICTURE repeatedly to change among MEMORY 1 MEMORY2 MEMORY3 to chang the Picture Mode Maintenance Service and Trouble shooting 10 Maintenance Service and Trouble shooting a Factory adjustment information Operation method after the appliance is switched on press MUTE CALL CALL MUTE Button in turn and enter service mode Press PRO and PRO buttons to select items for adjustment Press VOL and VOL buttons to adjust selected items Press the POWER button to switch of
53. om being damaged by accidental shorts of the circuitry that might be inadvertently introduced during the service operation If any fuse or Fusible Resistor in this TV receiver is blown replace it with a specified one When replacing a high wattage resistor Oxide Metal Film Resistor over 1W keep the resistor 10mm away from PCB Keep wires away from high voltage or high temperature parts Due to the high vacuum and large surface area of the picture tube extreme care should be taken in handling the Picture Tube Do not lift the Picture Tube by its Neck X RAY Radiation Warning The source of X RAY RADIATION in this TV receiver is the High Voltage Section and the Picture Tube For continued X RAY RADIATION protection the replacement tube must be of the same type as specified in the Replacement Parts List Before returning the receiver to the customer Always perform an AC leakage current check on the exposed metallic parts of the cabinet such as antennas terminals etc to make sure that the set is safe to operate without any danger of electrical shock Warning and Cautions 5 Warning and Cautions Warning and Cautions 1 When you clean the TV set please pull 4 To prevent the TV set from firing and out the power plug from AC outlet Don t electric shock don t I the Gauzek with make the TV set rain enzene petrol and other chemicals or moisture D 2 In order to prolong the using life of the 5 Don
54. or 2SC536 E D A 1 V509 0094400442 Transistor 2SB892 S D A 1 V901 0094400857 Transistor 25C2383 0 F 1 V103 0094400481 Transistor PH2369 D A 1 N203 0094400201 Diode KA33VTA F 1 L801 0094500546 Bend 3 5 6 T 1 L802 0094500546 Bend 3 5 6 T 1 L503 0094500547 Bend 3 5 5 F 1 L505 0094500547 Bend 3 5 5 F 1 L506 0094500547 Bend 3 5 5 F 1 List of Parts Location Materialcode JParts Name Type Qt Unit Remark L507 0094500547 Bend 3 5 5 F 1 W318 0094101102 Jumper p0 6mm 5mm B 1 C243 0094101102 Jumper p0 6mm 5mm B 1 W407 0094101102 Jumper p0 6mm 5mm B 1 W408 0094101102 Jumper p0 6mm 5mm B 1 W402 0094101102 Jumper p0 6mm 5mm B 1 C292 0094101102 Jumper p0 6mm 5mm B 1 W495 0094101102 Jumper p0 6mm 5mm B 1 W509 0094101103 Jumper 0 6mm 7 5mm 1 W599 0094101103 Jumper 0 6mm 7 5mm 1 W600 0094101103 Jumper 0 6mm 7 5mm 1 W896 0094101103 Jumper 0 6mm 7 5mm 1 W897 0094101103 Jumper 0 6mm 7 5mm 1 W517 0094101103 Jumper 0 6mm 7 5mm 1 W405 0094101103 Jumper 0 6mm 7 5mm 1 W199 0094101103 Jumper 0 6mm 7 5mm 1 W124 0094101103 Jumper 0 6mm 7 5mm 1 W521 0094101103 Jumper 0 6mm 7 5mm 1 W311 0094101103 Jumper 0 6mm 7
55. or CD110 50V 10uF M F 1 C205 0094200046 Capacitor CD110 50V 10uF M F 1 C236 0094200046 Capacitor CD110 50V 10uF M F 1 C250 0094201113 Capacitor CD110 25V 47 uF M F 1 C901 0094200990 Capacitor CD110 35V 47 uF M F 1 C924 0094201501 Capacitor CD110 16V 2 2uF M N 1 C405 0094200008 Capacitor CD110 16V 10uF M F 1 C402 0094200008 Capacitor CD110 16V 10uF M F 1 C404 0094200008 Capacitor CD110 16V 10uF M F 1 C216 0094200008 Capacitor CD110 16V 10uF M F 1 C320 0094200008 Capacitor CD110 16V 10uF M F 1 C321 0094200008 Capacitor CD110 16V 10uF M F 1 C311 0094200008 Capacitor CD110 16V 10pF M F 1 C249 0094200008 Capacitor CD110 16V 10pF M F 1 C272 0094200008 JCapacitor CD110 16V 10pF M F 1 C328 0094200008 Capacitor CD110 16V 10uF M F 1 C331 0094200008 Capacitor CD110 16V 10uF M F 1 C420 0094200008 Capacitor CD110 16V 10pF M F 1 C538 0094200476 Capacitor CD110X 16V 22yF M F 1 C415 0094200476 Capacitor CD110X 16V 22yF M F 1 C324 0094200433 Capacitor CD110X 16V 100uF M F 1 C323 0094200433 Capacitor CD110X 16V 100pF M F 1 C108 0094200433 Capacitor CD110X 16V 100pF M F 1 C212 0094200433 Capacitor CD110X 16V 100pF M F 1 C247 0094200433 Capacitor CD110X 16V 100pF M F 1 C268 0094200433 Capacitor CD110X 16V 100pF M F 1 C314 0094200433 Capacitor CD110X 16V 100pF M F 1 C318 0094
56. ositions Adjust OSD for the horizontal positions of the screen menu 27 14 Exploded View HT 3718 EXPLOSI CN Exploded View lt N 11 i EN eiu uj A m esr LE EL ik I Tn 9 HT 3718 EXPLOSION BOM NO Part Name Part code Number Specification Remark Front mask 0090203576 1 MTAA5099AC Q V0 94 2 CRT AS 0094000202 1 BUA1001 Q 3 CRT Ground AS 0090400175 1 JE214 02 4 Q 4 Screw 0090600064 4 SVEA5025RFE Q 5 Degaussing coil 0094500447 1 LM HXC 35 NQ 6 PCB 0094004674 1 BXA5188 J Q 7 Back cover 0090203571 1 MTAA5100AC Q V0 94 8 Screw 0090600020 2 SQJ 3012RFD Q 9 Screw 0090600023 4 SQH 4016RFE Q 10 Clamp 0090200452 4 MTAJ5006AH Q 11 Speaker 0094000810 2 ESB080TC407 Q 28 15 List of Parts List of Parts Location Material code Parts Name Type Qt Unit Remark 10903800199 1 0090300091 Rubber washer 1mm 96 5 4 0090200452 jclamp 040 4 0090501291 plastic bag 240 160 1 0094000202 CRT 37SX110Y22 DC05 1 W1006 0090400922 Wire JT2401 B0035Q 1 W1007 0090400922 Wire JT2401 B0035Q 1 0094500447 Degaussing coil HXC 35 1 W1001 0090400175 CRT grounding
57. ransmitted to 23 and 24 of N201 TDA9361 High frequency amplify AGC output from 27 of N201 controls the gain of the high frequency tuner 3 Analysis of signal trap switch circuit Color video signal output from 38 of N201 through V250 to Z250 Z252 and Z255 Al television signal is selected by V255 and V256 then pass V255 and V256 are band pass transistors take part in switch at the location The pin 5 of N201 is high level sound frequency isn t 4 5MHZ V256 conducts the signal pass through Z250 Z252 channel When pin 6 of N201 is low level V256 cut off and V255 conducts the signal pass through Z255 channel After the all television signal pass through the traps video signal is gained then after it pass through R260 R261 C242 N201 pin 40 V403 it is used in AV output Video signal of AV and Y signal of s terminal pass through N401 HEF4053BP are selected and go into pin 42 of N201 C signal of s terminal go into pin 43 of N201 R G B signal of RGB component respectively pass C291 C260 C261 to couple go to pin 46 pin 47 pin 48 of N201 4 Analysis of sound power amplifying circuits Sound power amplifying circuits are composed of integrated circuits N301 LA4285 87 and N302 LA4285 87 peripheral components LA4285 87 is an integrated electrical circuit Information introducing functions and testing data for LA4285 87 maintenance is listed in Table 24 Circuit Explanation Tab
58. rong substitution part or incorrect installation polarity of electrolytic capacitors may result in an explosion hazard d Discharging the picture tube anode 5 2Test high voltage only by measuring it with an appropriate high voltage meter or other voltage measuring device DVM FETVOM etc equipped with a suitable high voltage probe Do not test high voltage by drawing an arc 5 3 Discharge the picture tube anode only by a first connecting one end of an insulated clip lead to the degaussing or kine aquadag grounding system shield at the point where the picture tube socket ground lead is connected and then b touch the other end of the insulated clip lead to the picture tube anode button using an insulating handle to avoid personal contact with high voltage 5 4 Do not spray chemicals on or near this receiver or any of its assemblies 5 5 Unless specified otherwise in this service manual clean electrical contacts only by applying the following mixture to the contacts with a pipe cleaner cotton tipped stick or comparable nonabrasive applicator 10 by volume Acetone and 90 by volume isopropyl alcohol 9090 9990 strength CAUTION This is a flammable mixture Unless specified otherwise in this service manual lubrication of contacts is not required 5 6 Do not defeat any plug socket B voltage interlocks with which receivers covered by this service manual might be equipped 5 7 Do not apply AC power to this instrument an
59. ster RT13 1 6W 15KO 5 T 1 R278 0094100779 Resister RT13 1 6W 22k0 15 T 1 R581 0094100779 Resister RT13 1 6W 22k0 15 T 1 R262 0094100780 Resister RT13 1 6W 27kQ 5 T 1 R235 0094100780 Resister RT13 1 6W 27k0 15 T 1 R277 0094100036 Resister RT13 1 6W 33kQ 5 T 1 R239 0094100110 Resister RJ13 1 6W 39K G T 1 R604 0094100800 Resister RT13 1 6W 4 7kO 5 T 1 R409 0094100800 Resister RT13 1 6W 47k0 15 T 1 R499 0094100800 Resister RT13 1 6W 4 7kO 5 T 1 R408 0094100800 Resister RT13 1 6W 47kO 5 T 1 R116 0094100038 Resister RT13 1 6W 56KO 5 T 1 R236 0094100077 Resister RT13 1 6W 100KO 5 T 1 R426 0094100077 Resister RT13 1 6W 100KO 5 T 1 R420 0094100077 Resister RT13 1 6W 100KO 5 T 1 R932 0094101024 Resister RT13 1 6W 120KO 5 T 1 R266 0094101024 Resister RT13 1 6W 120KO 5 T 1 R804 0094101264 Resister RT13 1 6W 4 70KO 5 R 1 R598 0094101063 Resister RT14 1 4W 100 5 T 1 R574 0094102237 Resister RT15X 1 2W 470Q1590 T 1 R801 0094101380 Resister RT15X 1 2W 33KQ1590 T 1 R910 0094101373 Resister RT15X 1 2W 330 5 T 1 R926 0094101002 Resister RT15 1 2W 3 3KO 5 T 1 R501 0094102246 Resister RT15X 1 2W 220KO0z 596 1 R915 0094101000 Resister RT15 1 2W 1KO 5 T 1 R922 0094101000 Resister RT15 1 2W 1KO 5 T 1 R528 0094101090 Resister RS11 1 2W 12M0 20 T 4 R527 0094101090
60. the pattern break to the lead of the nearest component on the other side Carefully crimp and solder the connections CAUTION Be sure the insulated jumper wire is dressed so that it does not touch components or sharp edges Net dimension 6 Net dimension Top view Side view 000000 Front view HT 3718 Parts and Functions T Parts and Functions 1 Front Panel 0000000 DRemote sensor let The remote controller aim here the set can receive remote control signal Power switch Press the button to turn on the TV set press the button again to turn off the TV set Power indicator the indicator lights when power on Menu button G program up down button Volume up down button TV AV Audio R input 8 Audio L input Video input 2 Rear Panel S VIDEO input SCART socket 3 Antenna input 12 Remote Controller Functions 8 Remote Controller Functions Remote Controller MARK FUNCTION DESCRIPTION Program scan Standby Swap program between the presentand the last M ute NO USED Program RECALL TV VIDEO SELECTION VOLUME CONTROL CHANNEL NUMBER UP DOWN PICTURE PICTURE MENU 0 9 ONE DIGIT SELECTION d ONE OR TWO OR THREE DLG IIS PRESELECTDN MENU MENU DISPLAY EXIT EXITMENU DISPLAY HI
61. topen the back cover otherwise it is TV set please place it on a ventilated possible to damage the components in the place TV setand harm you O 6 When the TV set isn t going to be used for long time or it is in thunder and lightening please pull outthe plug from AC outlet and the antenna plug from the cover ofthe TV set 3 Don t place the TV set in the sunshine or near heatsource Explanation on the display tube Generally it is not needed to clean the tube surface However if necessary its surface can be cleaned with a dry cotton cloth after cutting off the power Don t use any cleanser If using hard cloth the tube surface will be damaged CAUTION Before servicing receivers covered by this service manual and its supplements and addenda read and follow the SAFETY PRECAUTIONS NOTE If unforeseen circumstances create conflict between the following servicing precautions 5 Warning and Cautions and any of the safety precautions always follow the safety precautions Remember Safety First General Servicing Precautions 5 1 Always unplug the receiver AC power cord from the AC power source before a Removing or reinstalling any component circuit board module or any other assembly of the receiver b Disconnecting or reconnecting any receiver electrical plug or other electrical connection c Connecting a test substitute in parallel with an electrolytic capacitor in the receiver CAUTION A w
62. uH 10 R 1 L252 0094500351 inducer LGA0307 6 84H 10 T 1 L250 0094500351 inducer LGA0307 6 84H 10 T 1 VD201 0094400049 Diode 1N4148 T 1 VD202 0094400049 Diode 1N4148 T 1 VD203 0094400049 Diode 1N4148 T 1 VD297 0094400063 Diode MTZ5 1B T 1 VD298 0094400063 Diode MTZ5 1B T 1 VD299 0094400063 Diode MTZ5 1B T 1 VD321 0094400049 Diode 1N4148 T 1 VD311 0094400049 Diode 1N4148 T 1 VD322 0094400049 Diode 1N4148 T 1 VD310 0094400049 Diode 1N4148 T 1 VD320 0094400049 Diode 1N4148 T 1 VD331 0094400049 Diode 1N4148 T 1 VD312 0094400049 Diode 1N4148 T 1 VD908 0094400049 Diode 1N4148 T 1 VD910 0094400049 Diode 1N4148 T 1 35 List of Parts Location Materialcode Parts Name Type Qt Unit Remark VD911 0094400049 JDiode 1N4148 T 1 VD572 0094400049 JDiode 1N4148 T 1 VD596 0094400049 JDiode 1N4148 T 1 DZ506 0094401618 Diode HZ3A2 T T 1 DZ294 0094400359 Diode RD5 1EB2 T 1 DZ295 0094400359 Diode RD5 1EB2 T 1 DZ296 0094400359 Diode RD5 1EB2 T 1 DZ595 0094400359 Diode RD5 1EB2 T 1 VD900 0094400397 Dio

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