LG KE-14P2B, Service Manual

Page 1: ...SERVICE MANUAL LG KE 14P2B MODEL ...

Page 2: ...Distance Adjustment 1 Turn the Cone Screw of the DECK left or right so that the RF waveform is maximum 2 Check if the RF waveform satisfies the linearity by pressing TRK UP and DOWN button one step CAUTION If the RF waveform becomes maximum with the Cone Screw more than 2 turns its out of adjustment 2 turns 720 1 5 Audio Level Check and Adjustment 1 Connect terminal of RMS Meter Audio Level Meter ...

Page 3: ...ack and upper half is white 2 Set the picture at standard on 3 Press SVC Key on the Service Remote Controller to get into Service mode 4 Press PR Key to select BG RG Press VOL Key until X 281 3 Y 288 3 GG is fixed data at 32 so do not adjust GG data 8 Deflection Data Adjustment 1 Input PAL Digital Pattern 2 Press SVC Key on the Service Remote Controller and select LINE SERVICE 2 mode 3 Press PR Ke...

Page 4: ... 9 of T801 YES NO POWER NO STAND BY Replace the Fuse Check the 6V Line of MAIN 1 BOARD Check if the Fuse is O K YES NO Check Replace DB801 R801 C806 NO Check Replace D806 Q801 R807 ZD801 C814 IC801 NO Check Replace FR851 D852 C856 Q860 Q861 Q862 ZD860 ZD861 R874 Check the pin 11 of P804 LOW NO Check Replace IC857 D859 F852 C875 NO TROUBLE SHOOTING ...

Page 5: ...t pin 9 of P804 YES NO POWER NO MONITOR ON Go to NO POWER NO ST BY BLOCK Go to NO RASTER BLOCK Check T701 Q781 and go to NO RASTER BLOCK Check the NO POWER NO ST BY BLOCK YES NO Check the pin 10 of P804 HIGH NO Check Replace D851 L851 C860 IC851 Check the pin 10 of P804 HIGH NO ...

Page 6: ...there about 8V at pin 6 of P805 YES NO RASTER Go to NO POWER BLOCK Go to NO PICTURE BLOCK Is there about 115V at pin 3 of T701 YES NO Check Replace F852 D850 R858 IC853 C863 Check the 8V LINE of VCD BOARD NO Check the H OUT LINE of VCD BOARD Check Replace IC501 of VCD BOARD NO Check Replace Q782 T781 R783 R787 Q781 NO Check Replace T701 5PIN CONNECTOR FR901 NO ...

Page 7: ...es the V A V B signal appear at pin 4 7 of P805 YES NO Check Replace FR702 D702 C704 L731 Check Replace FR701 D701 C708 C734 NO Is there about 200V at pin 1 of P901 YES NO PICTURE Check the CVBS line of VCD Check Replace IC901 Check screen voltage Does the RGB signal appear at pin 3 5 7 of P902 YES NO Check Replace FR704 D703 C702 T701 5PIN CONNECTOR L901 R911 NO NO ...

Page 8: ...ear at pin 9 of P805 YES NO SOUND Check Replace FR854 D855 IC601 Check Replace speaker speaker connector Is there about 25V at pin 5 of IC601 YES NO Check the Audio source line of VCD Check the voltage at collector of Q601 Check Replace IC601 external components of IC601 NO NO ...

Page 9: ...2 2 EXPLODED VIEW 14P2 330 340 320 315 300 120 501 520 310 943 400 603 610 601 602 121 A00 P801 ...

Page 10: ...24 001 002 002 003 004 005 006 007 008 009 010 011 012 012 013 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 031 OR OR OR OR OR DECK ASSY DRUM ASSY DRUM CIRC ASSY DRUM CIRC ASSY ARM ASSY ARM ASSY BRACKET ASSY GEAR ASSY GEAR ASSY HOLDER ASSY BRACKET ASSY ARM ASSY LEVER ASSY DRUM ASSY MOTOR MECH MOTOR MECH HOLDER CAP CAP ROLLER ARM SPRING ARM BAND MECH ASSY ARM ASSY BASE ASSY B...

Page 11: ...7 078 079 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 401 406 407 409 410 426 504 517 518 OR CHASSIS ASSY BELT MOTOR MECH MOTOR MECH GUIDE GEAR GEAR GEAR GEAR LEVER CLUTCH ASSY GEAR ASSY SPRING GEAR LEVER SPRING GEAR GEAR SPRING LEVER PLATE LEVER BASE PLATE ASSY BRACKET LEVER HOLDER GUIDE HOLDER HOLDER LEVER BRACKET OPENER ARM SPRING BODY SPRING ARM SPRING LEVER PAN HEAD MA...

Page 12: ...OL 400 3809V00185B BACK COVER ASSY GREEN 3809V00185C BACK COVER ASSY BLUE 3809V00185D BACK COVER ASSY PINK 501 4810V00012A BRACKET SMPS 520 6871VDM105A PWB ASSY MAIN2 14 NARROW 601 4810V00195C BRACKET MAIN 602 4814V00158B SHIELD BOTTOM 603 4814V00157E SHIELD TOP CASE 610 6871VMM449A PWB ASSY MAIN KE E D F W TXT SCART 6871VMM449B PWB ASSY MAIN KE E D F W O TXT SCART 6871VMM449C PWB ASSY MAIN KL E D...

Page 13: ...04S ASY KEC TR CHIP KRC102S SOT 23 TP KEC TR CHIP 2SC3875S ALY KEC TR CHIP KRC102S SOT 23 TP KEC TR CHIP 2SC3875S ALY KEC TR CHIP 2SC3875S ALY KEC LOCA NO PART NO DESCRIPTION IC01 IC01S IC02 IC03 IC04 IC05 IC06 IC100 IC101 IC200 IC201 IC202 IC301 IC500 IC601 IC701 IC801 IC802 IC803 IC851 IC852 IC853 IC855 IC856 IC857 IC901 D01 D02 D03 D04 D05 D07 D18 D20 D21 D22 D26 D100 D101 D102 D301 D500 D501 D...

Page 14: ...C3852A SANKEN TR KTC3198 TP Y KTC1815 KEC TR KTC3198 TP Y KTC1815 KEC TR KTC3198 TP Y KTC1815 KEC TR KTC3228 0 TP KTC2383 KEC TR KTA968A Y KEC 15P 50V J 470P 50V K B TA52 LOCA NO PART NO DESCRIPTION C05S C06 C06J C07 C08S C09 C10 C11 C12S C14S C16 C16S C17S C19S C32 C36 C37 C38 C39 C45 C47 C48 C50 C51 C52 C53 C54 C55 C56 C58 C61 C63 C72 C73 C74 C80 C84 C85 C88 C100 C101 C105 C106 C108 C111 C114 C1...

Page 15: ...509 C510 C512 C519 C528 C529 C530 C531 C532 C534 C536 C540 C541 C544 C545 C546 C547 C548 C601 C602 C603 C604 C605 C606 C607 C608 C609 C610 C701 C702 C703 C704 C705 C706 0CQ2242K439 0CE1063F618 0CQ2242K439 0CE3363F618 0CQ2242K439 0CE1074F618 0CE1053K618 0CE335DK618 0CE2263F618 0CE2253K618 0CE107DF618 0CE475DK618 0CE225DK618 0CE476DF618 181 007F 0CE107DF618 181 007F 181 007C 0CE104DK618 0CE1074F618 ...

Page 16: ...SCRIPTION C875 C876 C901 C904 C905 C906 FB801 FB802 FB803 FB851 L04J L222 L510 L902 L01J L01S L01 L02J L02S L02 L03J L03 L04 L05J L05 L06 L07 L10 L11 L12 L13 L101 L102 L103 L104 L105 L106 L107 L108 L144 L200 L201 L203 L204 L205 L206 L207 L209 0CE228DD618 0CE474CK636 0CQ1042R539 181 033T 0CE475DR618 0CE475DR618 125 022K 125 123A 125 022K 125 022K 125 022K 125 022K 125 022K 125 022K 0LA0102K119 0LA0...

Page 17: ...7 R18 R19 R20 R22 R23 R24 R25 R26 R27 R28 R31 R33 R38 R42 R43 R45 R46 R55 R57 R59 R67 R68 R69 R74 R77 R90 R92 R97 R98 R99 R101 R102 R109 R110 R112 R125 R128 R144 R146 R147 R148 R149 R153 R154 0RD5600F609 0RD1000F609 0RD1001F609 0RD1000F609 0RD1000F609 0RD1000F609 0RD2200F609 0RD5601F609 0RD1001F609 0RD1001F609 0RD2200F609 0RD2200F609 0RD2200F609 0RD2200F609 0RD2200F609 0RD2200F609 0RD1002F609 0RD2...

Page 18: ...0 R781 R782 R783 R784 R785 R786 R787 R788 R801 R805 R806 R807 R808 R809 R810 R811 R812 R813 R816 R821 R822 R823 R824 R825 R851 R852 R853 R854 R855 R856 R857 R858 R860 R865 R866 R867 R870 R871 R872 R873 R874 R903 R904 R905 R906 R907 R908 R909 R910 0RS0222H609 0RS2200J607 0RN3901F409 0RD0392H609 0RD3301H609 0RS5601K607 0RD4700F609 180 B01M 0RS1801J607 0RS6801K607 0RD0912F609 180 A03A 0RS2202K607 0RS...

Page 19: ...11T C12T C23T C24T IC01T IC03T L01T L02T L03T L08T Q01T Q02T Q03T Q04T R01T R02T R05T X01T A1 A1 A1 A1 A2 A2 A3 F801 JK05J LD03 TH801 TU100 RC01 S01 S02 S03 S04 SG901 SG902 SK200 SK902 0CQ3332K439 0CE107DF618 0CN1030F679 0CE107DF618 0CE476DF618 181 007G 0ISM545400A 0ISS753300A 0LA0102K119 0LA0102K119 0LA0102K119 0LA0102K119 0TR387500AA 0TR387500AA 0TR387500AA 0TR102009AG 0RD1000F609 0RD1000F609 0R...

Page 20: ...3 7 BLOCK DIAGRAM ...

Page 21: ...VCD BLOCK DIAGRAM 3 8 ...

Page 22: ...VIDEO AUDIO BLOCK DIAGRAM 3 9 ...

Page 23: ...P No 3854VA0060B 2 2 Date 2000 4 6 ...

Page 24: ...PB A REC A PB V REC V P No 3854VA0060B 1 2 Date 2000 4 6 CIRCUIT DIAGRAM OF MV 995B ...