LG 21FJ4AB/RB Service Manual

LG 21FJ4AB/RB Service Manual

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Driver Install Guide Specification
Driver Install Guide Specification
1.
Model Description
MODEL
21FJ4AB-TH
SUFFIX
KDRLCEY
2.
Printing Specification
1. Trim Size (Format) :
2. Printing Colors
• Cover :
2 Colors (Black and Pantone 207C)
• Inside :
1 Color (Black)
3. Stock (Paper)
• Cover :
Uncoated paper 100 g/㎡
• Inside :
Uncoated paper 100 g/㎡
4. Printing Method :
5. Bindery :
6. Language :
7. Number of pages
• This part contain Eco-hazardous substances (Pb, Cd, Hg, Cr6+, PBB, PBDE, etc.)
within LG standard level, Details should be followed Eco-SCM management
standard[LG(56)-A-2524].
NOTE
• Especially, Part should be followed and controlled the following specification.
(1) Eco-hazardous substances test report should be submitted when Part certification
test and First Mass Production.
(2) Especially, Don't use or contain lead(Pb) and cadmium(Cd) in ink.
3.
Changes
10
9
8
7
6
5
4
3
2
1
REV.
SIGNATURE
MM/DD/YY
NO.
All manuals and user guides at all-guides.com
BRAND
Product Name
215mm x 280 mm
Saddle stitch
English
: 28
pages
CHANGE NO.
LG
SVC Manual
CHANGE
담 당
관 리 자
KIM S H
KANG K S
06.12.22
06.12.22
MFL31479115
Part No.
CONTENTS

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Summary of Contents for LG 21FJ4AB/RB

  • Page 1 7. Number of pages : 28 pages • This part contain Eco-hazardous substances (Pb, Cd, Hg, Cr6+, PBB, PBDE, etc.) within LG standard level, Details should be followed Eco-SCM management standard[LG(56)-A-2524]. NOTE • Especially, Part should be followed and controlled the following specification.
  • Page 2 All manuals and user guides at all-guides.com Pagination sheet P/NO . MFL31479115 Total pages : 28 pages Back Front Cover Front Back Cover Inside Inside Cover Cover 3854VA0196B-S1 (EN) (EN) Schematic diagram P/N : 3854VA0196B-S1 Fold 1 Fold 2 MAIN Fold 3 3854VA0196B-S1 2005.8.16...
  • Page 3 All manuals and user guides at all-guides.com website:http://biz.LGservice.com COLOR TV SERVICE MANUAL CHASSIS : MC-059B MODEL: 21FJ4AB/RB MODEL: 21FJ4AB/RB-TH CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
  • Page 4: Table Of Contents

    All manuals and user guides at all-guides.com CONTENTS CONTENTS ....................2 SAFETY PRECAUTIONS................3 DESCRIPTION OF CONTROLS ..............4 SPECIFICATIONS ..................6 ADJUSTMENT ...................8 PRINTED CIRCUIT BOARD ..............13 TROUBLE SHOOTING ................14 BLOCK DIAGRAM ...................18 EXPLODED VIEW ..................20 EXPLODED VIEW PARTS LIST ..............21 REPLACEMENT PARTS LIST..............22 - 2 -...
  • Page 5: Safety Precautions

    All manuals and user guides at all-guides.com SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by 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.
  • Page 6: Description Of Controls

    All manuals and user guides at all-guides.com DESCRIPTION OF CONTROLS All the functions can be controlled with the remote control handset. Some functions can also be adjusted with the buttons on the front panel of the set. Remote control handset Before you use the remote control handset, please install the bat- teries.
  • Page 7 All manuals and user guides at all-guides.com 10. MUTE switches the sound on or off. 11. TV/AV selects TV or AV mode. switches the set on from standby. 12. I/II/ (option) selects the language during dual language broadcast. (option) selects the sound output. 13.
  • Page 8: Specifications

    All manuals and user guides at all-guides.com SPECIFICATIONS Note : Specification and others are subject to change without notice for improvement. Scope 4) Specification and performance of each parts are followed each drawing and specification by part number in This specification can be applied to all the television related to accordance with BOM.
  • Page 9 Front Local Key Power, Vol( ), PR( ), MENU, OK 7EA/ Front Turbo-Picture, Sound Option Remocon LG Code (NEC) Channel Auto prog. System/ Storage/ Normal/ Turbo Manual Storage/ System/ Channel/ Fine/ Search/ Name Prog. edit Copy/ Move/ Delete/ Skip Favorite...
  • Page 10: Adjustment

    (When adhering DY, use the electric driver of which turning force is lower than 10Kg/Cm) <Fig. 2> 3-2. Adjustment Preparation 1) Input LG standard signal into 75Ω antenna terminal (or <Fig. 2> PAL-B/G 05CH) 2) Connect the digital multi-meter to terminal(with Hole/ 5-2.
  • Page 11 All manuals and user guides at all-guides.com (4) Dynamic Convergence (DYC) Adjustment (*In case there is excess RED color, adjust it using the VOLUME - key of the remote control until the RED color 1) Vertical Line Adjustment : Adjust by moving DY right and disappear.) left Color temperature : 12000°K...
  • Page 12 All manuals and user guides at all-guides.com 8. SUB-BRIGHTNESS Adjustment 11. Instrument setting data Prior to this adjustment, the White balance adjustment (automatic adjustment) should be finished. <TABLE 2> VIDEO IC EEPROM Speed Delay 8-1. Adjustment Preparation SLave ADD 1) Receive the PAL B/G 5CH signal into RF mode regardless of channel.
  • Page 13 All manuals and user guides at all-guides.com <TABLE 1> Menu Adjustment Range Initial setting Remark VP 0 RF AGC RF AGC Delay 0 ~ 63 Necessary VP 1 H POS H PHASE 0 ~ 31 Necessary VP 2 V POS V Shift (V POSI) 0 ~ 15 Necessary...
  • Page 14 All manuals and user guides at all-guides.com Menu Adjustment Range Initial setting Remark VP 54 Y TH Y TH 0 ~ 3 Unnecessary VP 55 Y GAIN Y Gain 0 ~ 3 Unnecessary VP 56 R WIDTH R width 0 ~ 3 Unnecessary VP 57 R OFFSET...
  • Page 15: Printed Circuit Board

    All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD MAIN - 13 -...
  • Page 16: Trouble Shooting

    All manuals and user guides at all-guides.com TROUBLE SHOOTING 1. TV FUNCTIONAL 2. TU / IF SECTION 3. VIDEO PROCESSING In case of influx NOISE - R/C is not operate Maneuver defectiveness Maneuver defectiveness Maneuver defectiveness - 14 -...
  • Page 17 All manuals and user guides at all-guides.com 4. SMPS PRIMARY SECTION 5. SMPS SECONDARY SECTION - 15 -...
  • Page 18 All manuals and user guides at all-guides.com 6. VERTICAL SECTION 7. HORIZONTAL SECTION - 16 -...
  • Page 19 All manuals and user guides at all-guides.com 8. SOUND PROCESSING SECTION 9. CPT DRIVE SECTION - 17 -...
  • Page 20: Block Diagram

    All manuals and user guides at all-guides.com BLOCK DIAGRAM - 18 -...
  • Page 21 All manuals and user guides at all-guides.com MEMO - 19 -...
  • Page 22: Exploded View

    All manuals and user guides at all-guides.com EXPLODED VIEW Option - 20 -...
  • Page 23: Exploded View Parts List

    All manuals and user guides at all-guides.com The components identified by mark critical for safety. EXPLODED VIEW PARTS LIST Replace only with part number specified. LOCA. NO PARTS No. DESCRIPTIONS 6334921001A CPT,Bare A51QDJ420X A0MLYG 21INCH FLAT 4/3 16KHZ 6334V21009B CPT,Bare A51QDJ420X(G) 21INCH FLAT 4/3 16KHZ 6335921011A CPT,ITC A51QDJ420X 21(0.2G) 21INCH FLAT +0.5G 4/3 16KHZ 6150Z-1228Y 6400VA0018G...
  • Page 24: Replacement Parts List

    All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film in the P/No. means as follows; CE : Electrolytic RN : Metal Film RF : Fusible...
  • Page 25 All manuals and user guides at all-guides.com For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 26 All manuals and user guides at all-guides.com For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 27 All manuals and user guides at all-guides.com For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 28 All manuals and user guides at all-guides.com P/NO: 3854VA0196B - S1 2005.8.16...
  • Page 29 All manuals and user guides at all-guides.com SVC. SHEET : 3854VA0196B-S...
  • Page 30 All manuals and user guides at all-guides.com Dec., 2006 P/NO : MFL31479115 Printed in Korea...

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21fj4ab/rb-th

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