LG 21FX5REE Service Manual Download | Manualshive

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SVC. SHEET : 3854VA0162A-S

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Summary of Contents for 21FX5REE

Page 1: ...UAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS MC 049B MODEL 21FX5REE RG RGP MODEL 21FX5REE RG RGP TB website http biz LGservice com e mail http www LGEservice com techsup html ...

Page 2: ...ety Precautions 3 Control Descriptions 4 Specifications 7 Adjustment Instructions 8 T rouble Shooting 12 Printed circuit board 16 Block Diagram 19 Exploded View 20 Exploded View Parts List 21 Replacement Parts List 22 SVC Sheet ...

Page 3: ...perform an AC leakage current check on the exposed metallic parts of the cabinet such as antennas terminals etc to be sure the set is safe to operate without damage of electrical shock Leakage Current Cold Check Antenna Cold Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ...

Page 4: ...ndby scans programmes automatically F G Volume Up Down adjusts the volume adjusts menu settings OK accepts your selection or displays the current mode 6 Q VIEW returns to the previously viewed programme 7 TELETEXT BUTTONS option These buttons are used for teletext For further details see the Teletext section 8 PSM Picture Status Memory recalls your preferred picture setting 9 FAVOURITE selects a f...

Page 5: ... and sub picture INPUT selects the input mode for the sub picture SIZE adjusts the sub picture size STILL freezes motion of the sub picture POSITION relocates the sub picture in clockwise direction 9 4 PIP switches on or off the 9 or 4 sub pictures No function COLOURED BUTTONS These buttons are used for teletext only TELETEXT models or programme edit Without TELETEXT PIP POWER MUTE 1 2 3 4 5 6 7 8...

Page 6: ...the volume adjusts menu settings D D E E Programme Up Down selects a programme or a menu item switches the set on from standby 6 AUDIO VIDEO IN SOCKETS AV2 option Connect the audio video out sockets of exter nal equipment to these sockets 7 HEADPHONE SOCKET option Connect the headphone plug to this socket 8 EYE option adjusts picture according to the surrounding conditions Note Shown is a simplifi...

Page 7: ...ard input Voltage 110 240V 50 60Hz 4 Measurement must be performed after heat run more than 20min 5 Adjusting Standard for this chassis is followed a special standard No 1 2 3 4 5 6 7 8 Item Receiving System Receiving Channel Input Voltage Market Screen Size Tuning System Operating Environment Storage Environment Remark For EU For Non EU For EU For Non EU NTSC M Multi model Non EU EU FLAT CONVENTI...

Page 8: ...ht side have same portion 4 Pull the DY slowly and fix it when the whole screen become red 4 2 Convergence adjustment 1 Preparation 1 Receive the Cross Hatch pattern for convergence adjustment 09CH 2 Let the contrast at the adequate luminance level 2 Adjustment 1 Converge the RED vertical line and BLUE vertical line in the same line by changing the angle between the 2 tabs of the 4 pole magnet 2 C...

Page 9: ... located within the effective screen of the CPT 2 VL Vertical Linearity Adjust so that the boundary line between upper and lower half is in accord with geometric horizontal center of the CPT 3 SC S Correction Adjust so that all distance between each horizontal lines are to be the same 4 VS Vertical Shift Adjust so that the horizontal center line of a digital circle pattern is in accord with geomet...

Page 10: ...ESCRIPTION JOP EXP 1 3141VMNN40A MAIN MC 049A B CHASSIS ASSY 104 137 162 117 148 OPTION 1 OPTION2 10 Menu Contents VA VL SC VS HS Vert Amplitude Vert Linearity S Correction Vert Position Hor Position 512 511 512 511 512 511 512 511 32 2047 150 50 140 6 151 range N50Hz PAL FLAT 21 INCH SYS SOUND CH AU Option Code 0 1 2 3 4 5 6 7 0 1 2 3 0 1 2 3 0 1 Function 21A 21B 21C 21FM TX ONLY 29F 25F 28WF 32W...

Page 11: ... EU 5EA EU ETC GREECE EU ALL FARSI ARAB URDU E HINDI E I M V E THAI E CHINA WEST EU EAST EU1 TURKEY EU EAST EU2 CYRILLIC1 CYRILLIC2 CYRILLIC3 TURK GRE1 TURK GRE2 TURK GRE3 ARAB FRA ARAB ENG ARAB HEB1 ARAB HEB2 FARS ENG FARS FA FARS ALL AUTO Disable HOTEL function Enable HOTEL function MAX VOLUME VALUE LNA A2_ST ECO TILT BOOST VN3MN CHINA FM LH Option Code 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Function L...

Page 12: ...ck The voltage At pin of IC821 IC822 Q807 Check Replace C821 IC822 Q807 Check The Voltage At pin 2 19 20 21 24 of IIC11 Check Replace TU 101 Check Replace F806 D828 D805 OK OK OK OK OK OK NO NO NO NO NO NO No Raster Sound OK 1 2 Check the Heater voltage of CPT 6 6 4Vrm s Check HV Screen Voltage of CPT Check the Heater pulse of FBT T402 Check R G B out of CPT Board Check FBT T402 Check 185V line of...

Page 13: ...Check T401 each pin voltage Check Replace T402 Check the Voltage Of C803 Check the Voltage Pin 4 OF IC801 Check Replace IC801 IC802 IC826 Check Fuse and Diode of secondary Load of SMPS trans T803 Check Replace IC11 Check Replace IC11 Check Replace Q402 Check Replace T401 Check Replace Q401 Check Replace Fuse Check Replace DB801 Check Replace Fuse IC801 NO OK OK OK NO Open NO 18 20V Normal Yes Yes ...

Page 14: ...p Check 1 8V 3 3V 5V DC Voltage Check SMPS Trans Secondary Voltage Check pin18 Reset Voltage Check IC13 Reset IC Check pin57 58 SCL SDA Check IC12 EEPROM SCL SDA Line RelaceIC11 Q501 Q503 Q504 R G B out of IC11 Check Replace CPT Board com ponent Go to No Sound Picture OK OK OK OK OK NO NO NO NO NO NO 3 3V DC OK OK 3 3V DC Check receiving system in MENU execute Auto Program ...

Page 15: ...age Of pin2 19 20 21 24 of IC11 Check the signal line of SPK L R Check pin 55 m ute of IC11 Check the waveform At pin2 4 of IC601 Check the waveform At pin6 of IC601 Check the waveform At pin8 9 11 12 of IC601 Check thevpltage At pin7 5 of IC601 Check Replace D828 D805 F806 Check the connection of side or Front AV Board P603A Replace IC601 AV OK OK OK OK NO NO OK OK NO NO NO NO Correct the Board N...

Page 16: ... 16 PRINTED CIRCUIT BOARD MAIN ...

Page 17: ... C2 P11A C1 P12A E1 P14A C1 P15A C2 P15B A5 P1602A D1 P201A C1 P401A F4 P401B F4 P401C F4 P401D F4 P403A E5 P551A C3 P603A B2 P604A C2 P801A G1 P801B G1 P802A F1 P802B F1 P803A F1 P803B F1 P902A C2 PA01 F1 PJ201 C1 Q11 E1 Q41 C2 Q42 C2 Q102 A5 Q103 A5 Q104 B4 Q105 A4 Q106 A4 Q301 D4 Q401 G4 Q402 G3 Q403 D4 Q501 B3 Q502 B2 Q503 C2 Q504 C2 Q505 C5 Q507 B5 Q508 B2 Q510 B2 Q601 A2 Q801 D3 Q802 D1 Q803...

Page 18: ... 18 SIDE A V FM TRANSMITTER TILT TOP TILT BOTTOM ...

Page 19: ... AMP IC301 TDA4863A 14V 14V VA H OUT 35V H Vc c TU 33V S Vc c 6 5 V 12V B SAW FILTER Z101 PIP_BOARD SDA9489X S1117 18 IC825 S111 7 33 IC853 KIA78S06P IC824 KA78R33 KA78R05C ST 5V ST 3 3V ST 1 8V 3 3 V GAME HIC HIC01 190 V VB H FLB IIC 33V 5V TV MONITOR OUT SCART RGB IN Y Cb Cr IN AV IN H Vc c 5V S Vc c PIP RGB PIP VIDEO IIC VS H FLB 5V ST 5V ON OFF DATA CLOCK RESET VIDEO AUDIO 190V ...

Page 20: ... 20 EXPLODED VIEW 300 600 120 320 330 913 170 150 112 520 310 400 P801 550 700 570 943 ...

Page 21: ...80B BACK COVER ASSEMBLY 21FX5REE TB DVD 1PHONE LGEVN LOCAL 3809V00615C BABACK COVER ASSEMBLY 21FX5RGP TB DVD 1PHONE SY NEW ALLIED 3809V00615D BABACK COVER ASSEMBLY 21FX5RG TB 1PHONE SY KIOTA 520 68719MM020B PWB PCB ASSEMBLY MAIN M I MC049B 21FX5REE TB NTVLLEV SY VN 6871VMM925K PWB PCB ASSEMBLY MAIN M I 21FX5RGP TB NTNLLEK SY PAKISTAN 6871VMM937B PWB PCB ASSEMBLY MAIN M I MC049B 21FX5RG TB QFBLLBK ...

Page 22: ... 0 0027UF D 100V 5 PE TP5 0 1UF D 50V 80 20 F Y5V TA52 10000PF D 16V 20 X5R TA52 10000PF D 16V 20 X5R TA52 10000PF D 16V 20 X5R TA52 10000PF D 16V 20 X5R TA52 LOCA NO PART NO DESCRIPTION IC11 IC12 IC13 IC301 IC601 IC801 IC802 IC821 IC822 IC824 IC825 IC826 IC853 IC901 PF03 Q105 Q106 QF01 QF02 Q104 Q11 Q180 Q181 Q182 Q183 Q184 Q185 Q186 Q187 Q301 Q401 Q402 Q501 Q502 Q503 Q504 Q505 Q507 Q508 Q510 Q60...

Page 23: ...12 C513 C514 C515 C516 C517 C518 C519 C520 C521 C523 C524 C525 C526 C527 C528 C529 C530 C531 C532 C533 C534 C535 C536 C537 C538 C540 C541 C542 C543 C545 C546 C547 C548 C549 C550 C602 C603 C604 C605 C606 C607 C608 C609 C610 C611 C612 C613 C614 C615 0CE475DK618 0CN1040K949 0CE107DD618 0CN1040K949 0CE107DD618 0CN1040K949 0CN1040K949 0CN1040K949 0CN1040K949 0CN1010K519 0CE107DD618 0CN1040K949 0CN1040K...

Page 24: ...10UH K 2 3 3 4 TP LOCA NO PART NO DESCRIPTION L213 L251 L252 L401 L402 L501 L502 L504 L505 L506 L507 L508 L510 L801 PL01 T401 T803 C1 C2 C3 P105B P1205 P1206 P15B P902 F802 F805 F806 FR401 FR406 FR407 FR408 FR901 J202 J203 J204 J211 J402 R102 R103 R104 R109 R11 R110 R111 R112 R113 R114 0LA0102K119 0LA0102K119 0LA0102K119 6140VE0001V 6140VB0001F 0LA0102K119 0LA0102K119 0LA0101K119 0LA0102K119 0LA01...

Page 25: ...O PART NO DESCRIPTION R313 R314 R315 R32 R328 R33 R35 R37 R38 R403 R404 R409 R410 R412 R42 R421 R422 R501 R502 R503 R505 R506 R507 R508 R509 R510 R511 R512 R513 R514 R515 R516 R517 R518 R519 R520 R521 R522 R523 R524 R526 R527 R532 R534 R535 R536 R539 R540 R542 R543 R555 R557 0RN0471H609 0RN0471H609 0RS2700K607 0RD3301F609 0RN3602F409 0RD1000F609 0RD1000F609 0RD1000F609 0RD1002F609 0RD5600A609 0RD0...

Page 26: ... 6 W 5 TA52 220 OHM 1 6 W 5 00 TA52 220 OHM 1 6 W 5 00 TA52 220 OHM 1 6 W 5 00 TA52 100 OHM 1 6 W 5 TA52 100 OHM 1 6 W 5 TA52 100 OHM 1 6 W 5 TA52 1 2 W 1 5K 10 PLIKOR HIGH SURGE 1 2 W 1 5K 10 PLIKOR HIGH SURGE 1 2 W 1 5K 10 PLIKOR HIGH SURGE LOCA NO PART NO DESCRIPTION R912 R914 RF01 RF02 SW11 SW12 SW13 SW14 SW15 SW16 SW801 FB801 FB802 FB803 FB825 T802 X11 Z101 JK202 PJ1202 PJ1203 A1 A2 A3 F801 P...

Page 27: ...P NO 3854VA0162A S1 2004 6 12 ...

Page 28: ...SVC SHEET 3854V A0162A S ...

Page 29: ...Sep 2005 Printed in Korea P NO 3828VD0202V ...

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