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SERVICE MANUAL

CTF687

68CM CTV

APR03

SERVCTF687

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Summary of Contents for CT-F687

Page 1: ...SERVICE MANUAL CTF687 68CM CTV APR03 SERVCTF687 ...

Page 2: ...cedure 24 5 Block Diagram 29 6 Schematic Diagram 30 7 PCB Layout 31 8 Exploded View Diagram Temporary Absence This manual is the latest at the time of printing and does not include the modification which may be made after the printing by the constant improvement of product CT F687 ...

Page 3: ...ce of uninsulated voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to the person The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the appliance CAUTION Use of controls adjustments or procedures...

Page 4: ...onnel 8 Do not subject your television set to impact of any kind Be particularly careful not to damage the picture tube surface 9 Unplug this television set from the wall outlet before cleaning Do not use liquid cleaners or aerosol cleaners Use a damp cloth for cleaning 10 1 Do not place this television set on an unstable cart stand or table The television set may fall causing serious injury to a ...

Page 5: ...pporting structure grounding of the lead in wire to an antenna discharge unit size of grounding conductors location of antenna discharge unit connection to grounding electrode and requirements for the grounding electrode 15 2 Note to CATV system installer Only for the television set with CATV reception This reminder is provided to call the CATV system attention to Article 820 40 of the NEC that pr...

Page 6: ... 21 If you are unable to restorenormal operation by following the detailedprocedurein your operating instructions do not attempt any further adjustment Unplug the set and call your dealer or service technician 22 Whenever the television set is damaged or fails or a distinct change in performance indicates a need for service unplug the set and have it checked by a professional service technician 23...

Page 7: ...RODUCT SPECIFICATION MODEL CT F687 AMBIENT CONDITIONS AMBIENT TEMPERATURE OPERATING 10 C 40 C STORAGE 15 C 45 C HUMIDITY OPERATING 80 STORAGE 90 AIR PRESSURE 86kpa 106kpa PREPARED BY DATE APPROVED BY DATE ...

Page 8: ... 其他 OTHERS M13 4 TV BROADCASTING SYSTEM AND COUNTRY PAL I X X PAL BG PAL DK PAL DK 1 PAL DK BG SECAM BG SECAM L SECAM DK BG PAL N NTSC M X X NTSC3 579 4 43 AV MODE 21 MULTI SYSTEM UK HK GERMAN RUSSIA CHINA USA E EUROPE VIETNAM CANADA DUBAI INDONESIA S AFRICA MALAYSIA MID AMERICA SINGAPORE ISRAEL X X AUSTRALIA NEW ZEALAND TAIWAN MOROCCO PHILIPPINES OTHER 5 RECEIVING CHANNELS CH21 CH69 CH2 CH12 CCIR...

Page 9: ...X 4 433MHz X X 3 579MHz 3 58MHz 8 INTERMEDIATE FREQUENCIES PICTURE 39 5MHz SOUND 6 0MHz X X PICTURE 38 9MHz X X SOUND5 5MHz PICTURE 38 0MHz SOUND 6 5MHz PICTURE 45 75MHz SOUND 4 5MHz OTHER AM SOUND 6 5MHz 9 POWER CONSUMPTION 65W 70W 75W 80W 110W 120W X X 130W 140W 180W 190W OTHER 10 POWER SOURCE AC 120V 60Hz 10 AC 200V 50Hz 10 AC 220V 50Hz 10 AC 220V 50Hz 10 25 X X AC 240V 50Hz 10 AC 110V 240V 50 ...

Page 10: ...NBALANCED F TYPE ANT INPUT FOR NTSC 300 Ω BALANCED TWO TERMINALS ANT INPUT OTHER 13 PRODUCT SAFETY REQUIREMENT BS APPROVAL VDE APPROVAL UL APPROVAL CHINA APPROVAL X X CB APPORVAL X X OTHER SAA EMC 14 PRODUCT EMC EMI REQUIREMENT FTZ APPOVAL FCC APPROVAL X X CHINA APPOVAL OTHER B BASIC FEATURES OF CONTROLLER 1 CHANNEL TUNING METHOD X X VOLTAGE SYNTHESIZER V S ...

Page 11: ...S BALANCE CONTROL X X SHARPNESS CONTROL X X OTHER 4D FAULT SOUND STETTING FIVE BAND EQUALIZER 5 TELETEXT SIMPLE TEXT TOP TABLE OF PAGES FLOF FASTEXT LIST 6 ON SCREEN DISPLAY X X GENERAL FEATURES STEREO DUAL LAN FOUR S EFFECT INDICATOR GERMAN STEREO INDICATOR 注 REMARK OSD GENERAL FEATURES OF CPU VOLUME BRIGHTNESS CONTRAST COLOUR PROGRAM BAND AUTO SEARCH MANUAL TUNE MUTING AV AND SLEEP TIMER 7 SLEEP...

Page 12: ...NDBY INDICATOR X X PROGRAM VOLUME UP DOMN BAND SELECT X X RCA SOCKET SIDE EARPHONE INPUT OTHER AUTO SEARCH AND MANUAL TUNING SELECT D CONSTRUCTION OF REAR PANEL X X 75Ω AERIAL TERMINAL 300Ω AERIAL TERMINAL RCA SOCKET AV INPUT ONLY RCA SOCKET AV IN OUT X X RCA SOCKET A R L IN OUT V IN OUT RCA SOCKET A R L V INPUT X 2 SCART SOCKET X X S VHS INPUT EXT INT SPEAKER SELECT EXT SPEAKERS R L TERMINALS EXT...

Page 13: ... 1VP P 1VP P AUDIO OUTPUT 1kΩ R L 0 5VrmS 0 5VrmS RGB INTPUT 75Ω 0 7VP P AUDIO LINE OUTPUT 1kΩ 1VP P F OTHERS INFORMATION 1 FLYBACK 37 BSC290 1650X 2 TUNER 07 389VI5 NX4 3 SAW FILTER 45 SAWK33 50K 4 POWER CORD 5 FUSE 6 COLOUR TEMP 7 MAGNETIC FIELD 8 IC EEPROM 13 00M24C 08P 9 IR RECEIVER 11 IRR001 1X0 10 CIRCUIT DIAGRAM 01 29274T MA3 11 MAIN BOARD 40 2916MT MAH ...

Page 14: ... OHM 1 4W 5 C 1 R725 08 29274T MAN ASS Y MAIN BD 18 CE0222 JNX RES C F 2 2K OHM 1 2W 5 C 1 R309 08 29274T MAN ASS Y MAIN BD 27 AHR434 J0X CAP M PP 0 43 UF 400V 5 C 1 C418 08 29274T MAN ASS Y MAIN BD 27 ALQ272 J0X CAP M PP 0 0027UF 1 6KV 5 C 1 C413 08 29274T MAN ASS Y MAIN BD 27 ALR103 J0X CAP M PP 0 01 UF 1 6KV 5 C 1 C414 08 29274T MAN ASS Y MAIN BD 40 2916MT MAH P C B MAIN BD C 1 08 29274T MAN AS...

Page 15: ...RES M O 3 9 OHM 2W 5 C 1 R726 08 29274T MAN ASS Y MAIN BD 18 GF0109 JGX RES WIRE ROUND 1 OHM 1W 5 C 1 R311 08 29274T MAN ASS Y MAIN BD 18 GG0109 JHX RES WIRE ROUND 1 OHM 2W 5 C 1 R422 08 29274T MAN ASS Y MAIN BD 26 AIC221 KBX CAP CER 220 PF 500V 10 B C 2 C431 C441 08 29274T MAN ASS Y MAIN BD 26 AIC332 KBX CAP CER 3300 PF 500V 10 B C 1 C402 08 29274T MAN ASS Y MAIN BD 26 AIC391 KBX CAP CER 390 PF 5...

Page 16: ...W 5 C 4 R066 R211 R965 R967 08 29274T MAN ASS Y MAIN BD 18 CB0332 JNX RES C F 3 3K OHM 1 6W 5 C 8 R013 R014 R074 R076 R111 R254 R302 R472 08 29274T MAN ASS Y MAIN BD 67 H30147 1A0 HEAT SINK FOR HORIZ C 1 FOR Q412 08 29274T MAN ASS Y MAIN BD 67 H30179 3A0 HEAT SINK C 1 FOR IC301 08 29274T MAN ASS Y MAIN BD 41 WJ0090 B00 WIRE BARE JUMPER 9MM C 2 J031 J634 08 29274T MAN ASS Y MAIN BD 41 WJ0170 B00 WI...

Page 17: ...50 JCX CAP CER 15 PF 50V 5 CH H 4 C041 C042 C043 C044 08 29274T MAN ASS Y MAIN BD 26 EBP222 KBX CAP CER 2200PF 50V 10 B H 1 C452 08 29274T MAN ASS Y MAIN BD 26 EBP300 JZX CAP CER 30 PF 50V 5 SL H 2 C055 C056 08 29274T MAN ASS Y MAIN BD 26 EBP330 JZX CAP CER 33 PF 50V 5 SL TUBU H 2 C128 C953 08 29274T MAN ASS Y MAIN BD 26 EBP331 JCX CAP CER 330 PF 50V 5 CH H 6 C004 C063 C084 C085 C091 C301 08 29274...

Page 18: ... 29274T MAN ASS Y MAIN BD 46 33079W 05X PIN BASE 5 TJC3 5A C 1 P201 FOR CRT BD P503 08 29274T MAN ASS Y MAIN BD 26 EBP220 JCX CAP CER 22 PF 50V 5 CH H 2 C053 C054 08 29274T MAN ASS Y MAIN BD 47 RCA023 XX1 RCA JACK 3PV YEL WHI RED SW H 2 P911 P931 08 29274T MAN ASS Y MAIN BD 41 WJ0060 B00 WIRE BARE JUMPER 6MM C 42 J022A J044 J123 J132 J141 J229 J230 J232 J242 J261 J301 J327 J328 J338 J401 J421 J512...

Page 19: ...02X HS 2P24 150 5 F W S11 02H C 1 FOR Q931 B Q932 B TO NICAM BD P1003 08 29274T MAN ASS Y MAIN BD 18 CB0222 JNX RES C F 2 2K OHM 1 6W 5 C 15 D215 D631 R041 R042 R043 R044 R218 R242 R713 R914 R924 R972 R982 R988 R991 08 02927T PW1 ASS Y POWER PARTS AUST 67 H29550 8A0 HEAT SINK C 1 FOR IC801 08 02927T PW1 ASS Y POWER PARTS AUST 67 H34692 0A0 HEAT SINK C 1 FOR IC801 08 02927T PW1 ASS Y POWER PARTS AU...

Page 20: ...W1 ASS Y POWER PARTS AUST 25 BKJ221 M1X CAP ELEC 220 UF 200V 20 C 1 C835 08 02927T PW1 ASS Y POWER PARTS AUST 41 WJ0065 B00 WIRE BARE JUMPER 6 5MM C 1 J451 08 02927T PW1 ASS Y POWER PARTS AUST 41 WJ0100 B00 WIRE BARE JUMPER 10MM C 3 J371 J654 J655 08 02927T PW1 ASS Y POWER PARTS AUST 41 WJ0145 B00 WIRE BARE JUMPER 14 5MM C 1 J491 08 02927T PW1 ASS Y POWER PARTS AUST 41 WJ0180 B00 WIRE BARE JUMPER ...

Page 21: ... RU3AM FAST RECOVERY 1 D831 08 02927T PW1 ASS Y POWER PARTS AUST 10 0RU4YX F0X DIODE RU4YX FAST RECOVERY C 1 D830 08 02927T PW1 ASS Y POWER PARTS AUST 34 R220K2 1BX COIL CHOKE 22 UH 10 C 1 L838 08 02927T PW1 ASS Y POWER PARTS AUST 25 BMJ221 M1X CAP ELEC 220 UF 400V 20 C 1 C806 08 02927T PW1 ASS Y POWER PARTS AUST 34 A608K6 1BX COIL CHOKE 0 6 UH 10 C 1 L801 08 02927T PW1 ASS Y POWER PARTS AUST 66 3...

Page 22: ...A562TM 0BX TRANSISTOR 2SA562TM 0 C 1 Q507 08 02916T CR3 ASS Y CRT BD NOVEL 11 SC1815 YBX TRANSISTOR 2SC1815Y C 3 Q502 Q504 Q506 08 02916T CR3 ASS Y CRT BD NOVEL 11 SC4544 0AX TRANSISTOR 2SC4544 NPN C 3 Q501 Q503 Q505 08 02916T CR3 ASS Y CRT BD NOVEL 26 EBP471 JCX CAP CER 470 PF 50V 5 CH H 1 C503 08 02916T CR3 ASS Y CRT BD NOVEL 26 EBP391 JCX CAP CER 390PF 50V 5 CH H 2 C501 C502 08 02916T CR3 ASS Y...

Page 23: ... 08 29274T RCN ASS Y REAR CABINET 55 2975RC 1AN REAR CABINET 94V 0 100 C 1 08 29274T RCN ASS Y REAR CABINET 58 2927RI 2UI INLAY TERMINAL BD C 1 08 29274T RCN ASS Y REAR CABINET 58 2927MP 0UI PLATE MODEL NO C 1 08 29274T RCN ASS Y REAR CABINET 59 130460 00X RUBBER PAD 25MMX7MM C 2 FOR REAR CAB BUTTOM 08 29274T RCN ASS Y REAR CABINET 63 B40200 AB3 S T SCREW B 4 X 20 AB C 11 MTG FRONT REAR CAB 08 292...

Page 24: ...16 C1022 C1033 C1034 08 02918T NIY ASS Y NICAM BD 25 BCB220 M1X CAP ELEC 22 UF 16V 20 C 1 C1032 08 02918T NIY ASS Y NICAM BD 18 CB0101 JNX RES C F 100 OHM 1 6W 5 C 4 R1011 R1014 R1017 R1018 08 HS46F0 M13C ASS Y IR HANDSET NI BG SW 67 26968X 0E2 BATT TERMINAL C 1 08 HS46F0 M13C ASS Y IR HANDSET NI BG SW 67 310280 0E2 SPRING BATTERY C 1 08 HS46F0 M13C ASS Y IR HANDSET NI BG SW 67 310290 0E2 SPRING B...

Page 25: ...factory remote handset you can find the BUS OFF key It can cut off the I2 C control from the CPU to other IC This is only useful when automatic adjustment of white balance 3 All system data in menu of key 7 must keep unchanged when servicing Otherwise the set may not work properly Setting method No Adjustment Items Data Name default value inside blanket Conditions and input signal Setting method n...

Page 26: ... Receive pattern of cross hatch with black background and then change to white background then compare the vertical and horizontal size between black and white background Adjust VEHT and HEHT until you get the minimum difference of screen size After you adjust VEHT and HEHT you must re adjust vertical and horizontal amplitude 7 Horizontal geometry for NTSC system Key 5 HPOS60 11 HSIZE60 2A PARA60 ...

Page 27: ...y 0 OSD 0A TXCX 30 RGCN 20 TNTX 25 TNTN 32 FMMODE 13 DKFMMD 20 OSD OSD position TXCX OSD intensity when maximum contrast RGCN OSD intensity when minimum contrast TNTX maximum tint level TNTN minimum tint level FMMODE frequency shift for FM mono mode only useful for NICAM model DKFMMD frequency shift for DK NICAM mode 9 Key 8 SCNT 0F CNTX 3F CNTN 00 BRTX 20 BRTN 25 COLX 35 COLN 00 SCNT sub contrast...

Page 28: ...sharpness 13 KEY CALL DBE STR 50 DBE HMC 0D DBE HP 07 DBE LP 00 DBE LIM FO SUB FRE 15 SUB HP 02 VOLMAI 03 Richly Music Signal Effect Strength Harmonic Content High Pass Corner Frequency Low Pass Corner Frequency Amplitude Limit Subwoofer Corner Frequency Subwoofer Complementary High Pass Filter Volume Loudspeaker System data Item Adjust item Default value 12 Key 7 VCDM0 VCDM1 VCDM2 MODE0 MODE1 MOD...

Page 29: ...ng 200ms 8ms Data 6 Base band filter in NTSC system 0 on 1 off 7 VMOD VCDM2 default value 40 for 38MHz IF 30 for 38 9MHz IF BIT Item 0 AFT mute 0 off 1 on brightness off 1 SECAM ADJ 0 SECAM correction off 1 SECAM correction on 2 TB1238N_VMOD 3 PIF VCO ADJ 6 5 4 IF frequency 111 33 9MHz 110 33 95MHz 101 34 47MHz 100 38MHz 011 38 9MHz 010 39 5MHz 001 45 75MHz 000 58 75MHz 7 No use MODE0 BIT Item 0 0...

Page 30: ... off 1 on 5 WOOFER 0 off 1 on 6 DBE 0 off 1 on 7 VM 0 off 1 on OPTION default value 10 BIT Item 0 When blue background off mute pin of CPU 0 audio mute on 1 audio mute off 1 When blue background off external mute pin of CPU 0 audio mute on 1 audio mute off 2 When change channel 0 picture mute on 1 picture mute off 3 Audio demodulation gain setting 0 50KHz 1 25KHz 4 When no signal 0 search channel ...

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