LG 21FS4RLX Service Manual
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LG 21FS4RLX Service Manual

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P/NO : MFL31616401
COLOR TV

SERVICE MANUAL

CHASSIS : CW62B
MODEL: 21FS4RLX
MODEL:
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
Sep., 2007
Printed in China
Internal Use Only
website:http://biz.lgservice.com
21FS4RLX-ZV

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Summary of Contents for LG 21FS4RLX

  • Page 1: Service Manual

    Internal Use Only website:http://biz.lgservice.com COLOR TV SERVICE MANUAL CHASSIS : CW62B MODEL: 21FS4RLX MODEL: 21FS4RLX-ZV CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. Sep., 2007 P/NO : MFL31616401 Printed in China...

  • Page 2: Table Of Contents

    Trouble Shooting ..................14 Printed circuit board................17 Block Diagram..................19 Exploded View..................20 Exploded View Parts List ...............21 Replacement Parts List ................22 SVC. Sheet....................Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 2 - Only for training and service purposes.

  • Page 3: Safety Precautions

    CONDUIT etc. component failure. To Instrument’s 0.15uF exposed METALLIC PARTS 1.5 Kohm/10W Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 3 - Only for training and service purposes.

  • Page 4: Control Descriptions

    UPDATE/ HOLD/ POSITION relocates the sub picture in clockwise direction. (With TELETEXT / Without PIP) Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 4 - Only for training and service purposes.
  • Page 5 (Without TELETEXT / PIP) COLOURED BUTTONS : These buttons are used for teletext (only TELETEXT models) or programme edit. (With PIP / Without TELETEXT) Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 5 - Only for training and service purposes.
  • Page 6 What is shown here may be somewhat from your set or can not be supplied on your area. Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 6 - Only for training and service purposes.

  • Page 7: Specifications

    3 @ @ @ @ @ @ @ @ 5 h V 4 @ @ @ @ @ @ 0 Y h I 4 @ @ 0 M h e 1) performance : Follow the Standard of LG TV test parts,based upon P/N of B.O.M 2) Standards of Etc. requirement 5) Warm up TV set for more than 20min.

  • Page 8: Adjustment Instructions

    DY. to the adjustment. (6) Signal: Received, the standard color signal.(65dB±1dB uV) Convergence Magnet 6Pole Degaussing LG standard signal means the digital pattern (PAL_EU 05CH,NTSC_US 13CH). STC Pre-Adjustment 15 ~ 20mm PURITY Adjustment 3. Focus adjustment Let the screen Standard condition.

  • Page 9: Screen Voltage Adjustment

    GG(G DRIVE) 0 ~ 63 CPT. BG (B DRIVE) 0 ~ 63 Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 9 - Only for training and service purposes.
  • Page 10 NTSC mode. (10) BOW Adjust the left and right crooked line on upper and lower side. Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 10 - Only for training and service purposes.
  • Page 11 Large type Remocon / Small type Remocon OPTION5 REMOCON HOTEL HOTEL option TURBOSCH Turbo search TURBOP/S Turbo picture/ sound Blue back option BLUEBACK TEXT Teletext option Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 11 - Only for training and service purposes.
  • Page 12 SOUND MUTE DYNAMIC FLAT TURBO SOUND FLAT BALANCE ON/OFF TIME AUTO SLEEP CHILD LOCK DEGAUSS OPTION TILT OPTION BLUE BACK OPTION Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 12 - Only for training and service purposes.

  • Page 13: Svc Remocon

    SVC REMOCON Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 13 - Only for training and service purposes.

  • Page 14: Trouble Shooting

    Check FBT T402 Check 190V line of CPT Board & Check RF901, P903C, P402A if no problem check and Replace P903B, FR401 Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 14 - Only for training and service purposes.
  • Page 15 Check Fuse and Diode of secondary waveform Load of SMPS trans(T802) Check/ Replace Q401 Check & Replace Check/ Replace IC11 T402 Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 15 - Only for training and service purposes.
  • Page 16 Check IC12(EEPROM) & SCL, SDA, Line Replace IC11 P904A (R, G, B out P904A (R, G, B out of IC501) of IC11) Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 16 - Only for training and service purposes.

  • Page 17: Printed Circuit Board

    PRINTED CIRCUIT BOARD MAIN Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 17 - Only for training and service purposes.
  • Page 18 SIDE A/V Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 18 - Only for training and service purposes.

  • Page 19: Block Diagram

    BLOCK DIAGRAM Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 19 - Only for training and service purposes.

  • Page 20: Exploded View

    EXPLODED VIEW Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 20 - Only for training and service purposes.

  • Page 21: Exploded View Parts List

    5020900070A Button POWER 21FS4 ABS, HF-380 NON MBG32952502 Button MOLD ABS HF380 POWER 21FS4 ABS 3809900182B/F/H/Q Cover Assembly 21FS4RLX-ZV CW62B 21'' SY -C/SKD ACQ31198903 Cover Assembly 21FS4 MC059C 20''/21'' MA TOOL EBR33932901/10 PCB Assembly, MAIN M.I CW62B 21FS4RLX-ZV KDRLLEY EBR33392711/12/15 PCB Assembly, MAIN M.I CW62B 21FS4RLX-ZV QUPLLCP...

  • Page 22: Replacement Parts List

    CH UP050 F104Z-B-B Z 100nF -20TO+80% D402 EAH30754301 RU4DS 1.8V 1.3KV 1.5A 50A 400NSEC 0W C112 0CN1030F679 RH EP050 Y103M-B-B 10nF 20% 16V X5R Copyright©2007 LG Electronics.Inc. All right reserved. - 22 - LGE Internal Use Only Only for training and service purposes.
  • Page 23 RH TP050 F223Z-B-B 22nF -20TO+80% 25 C506 0CQ1031N509 PEI103K2AT 10nF 10% 100V PE -40TO+85 C602 0CE108DH618 SMS5.0TP25VB1000M 1000uF 20% 25V 1.3 Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 23 - Only for training and service purposes.
  • Page 24 336-072C BSP(C2600R) 1P LUG STRAIGHT DIP TP S L1202 0LA0102K119 Inductor,Wire Wound,Axial LAL02TB100K 336-072C BSP(C2600R) 1P LUG STRAIGHT DIP TP S Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 24 - Only for training and service purposes.
  • Page 25 0RN0301J607 RN-01T3J3R00 3OHM 5% 1W 12.0X4.0MM N FR405 0RP0050H709 SPF92T1KR050 0.05OHM 10% 1/2W 3.2X2. R316 0RD1000F609 RD-96T1J100R 100OHM 5% 1/6W 3.2X1.8M Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 25 - Only for training and service purposes.
  • Page 26 R823 0RP0020J809 SPF01T1MR020 0.02OHM 20% 1W 6.5X2.3M R543 0RD1000F609 RD-96T1J100R 100OHM 5% 1/6W 3.2X1.8M R824 0RD2701F609 RD-96T1J2K70 2.7KOHM 5% 1/6W 3.2X1.8 Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 26 - Only for training and service purposes.
  • Page 27 THVH472GBC 1C1P 12VDC 0.05A VERTICAL 5010V00004B 5010V00004B SINGLE 2.5DB 300OH SW801 6600VM1001A SDKLA1 AC 250VAC 5A 1PCS 1C1P SPARK GAP, AXIAL Copyright©2007 LG Electronics.Inc. All right reserved. - 27 - LGE Internal Use Only Only for training and service purposes.
  • Page 28 Copyright©2007 LG Electronics. Inc. All right reserved. P/No : EBY31683801 LGE Internal Use Only Only for training and service purposes...
  • Page 29 SVC. SHEET : EBY31683801-S...

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