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LG 29FS2AL Service Manual

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COLOR TV

SERVICE MANUAL

CHASSIS : CW62A
MODEL: 29FS2AL/ALX
MODEL:
29FS2AL/ALX-ZG
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

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  Summary of Contents for LG 29FS2AL

  • Page 1: Service Manual

    COLOR TV SERVICE MANUAL CHASSIS : CW62A MODEL: 29FS2AL/ALX MODEL: 29FS2AL/ALX-ZG CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
  • Page 2: Table Of Contents

    CONTENTS Contents ........................2 Safety Precautions....................3 Control Descriptions..................4 Specifications......................7 Adjustment Instructions .................8 T rouble Shooting ....................14 Printed circuit board..................18 Block Diagram .....................20 Exploded View....................22 Exploded View Parts List ................23 Replacement Parts List .................24 SVC. Sheet........................- 2 -...
  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS IMPORT ANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by 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 4: Control Descriptions

    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. POWER MUTE Remote control handset Before you use the remote control handset, please install the bat- teries.
  • Page 5 8. FAVOURITE selects a favorite programme. 9. EYE/ (option) POWER MUTE switches the eye function on or off. 10. MUTE switches the sound on or off. 11. TV/AV selects TV or AV mode. switches the set on from standby. MENU TV/AV exits the Teletext mode 12.
  • Page 6: Front Panel

    Front panel ON/OFF ON/OFF Side panel 1. MAIN POWER (ON/OFF) 6. AUDIO/VIDEO IN SOCKETS (AV IN3) switches the set on or off. Connect the audio/video out sockets of external equipment to these sockets. 2. POWER/STANDBY INDICATOR illuminates brightly when the set is in standby 7.
  • Page 7: Specifications

    4) Follow each drawing or spec for spec and performance of Test and Inspection Method parts,based upon P/N of B.O.M 1) performance : Follow the Standard of LG TV test 5) Warm up TV set for more than 20min. before the 2) Standards of Etc. requirement measurement.
  • Page 8: Adjustment Instructions

    (5) The receiver must be operated for about 15 minutes prior ◀ to the adjustment. 15 ~ 20mm PURITY Adjustment (6) Signal: Received, the standard color signal.(65dB±1dB uV) LG standard signal means the digital pattern Let the screen Standard condition. DY Fixing (PAL_EU 05CH). Operate Heat-Run at least 15 minutes.
  • Page 9: Screen Voltage Adjustment

    (5) Open angle of the two tab of 6 pole magnet by isogonic 2. White balance IIC Parameter(Address) angle and accord with vertical line of Red/Blue and Green. Program Win31_wb Win31_wb TWB Speed Delay (6) Maintain as angle of (5) and rotate the tab to accord with Vcd Slave Eeprom_Slave horizontal line.
  • Page 10 (6) EW WIDTH Adjust until the outmost left and right lattice of received pattern is accord with 25% of other lattice width. <Fig. 4> PIP H Position 8. Deflection setting initial data <Fig. 2>PAL Digital pattern (EU05CH) <Table 4> Deflection setting initial data (SERVICE 2) * Fix : Don’t change data (7) EW PARABOLA Adjust so that middle portion of the outermost left and right...
  • Page 11 9. Service adjustment data table <Table 7> OPTION 1, 2, 3, 4 ITEM Description <Table 5> Picture setting service data1 (SERVICE 1) OPTION1 INCH 29 S-Slim/ 29 N-Flat ITEM DESCRIPTION 29” S-SLIM SYSTEM BG/DK/I/M, BG/DK/I/L ACG take over 200PR W/O TXT=>200PR, W/TXT=>100PR Red Gain TOP=>Germany, Swiss, Austria, Italy Green Gain...
  • Page 12 <Table 8> OSD & TEXT LANGUAGES SOUTHEAST ASIA ENGLISH ENGLISH INDONESIAN MALAY VIETNAMESE THAI RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED EAST EU CYRILLIC TEXT ENGLISH EAST EU ALL ENGLISH GERMAN RUMANIAN POLISH HUNGARIAN CZECH RUSSIAN BULGARIAN ENGLISH RUSSIAN ENGLISH RUSSIAN RESERVED RESERVED RESERVED...
  • Page 13 ARAB TEXT ENGLISH ARABIC ENGLISH FRENCH ARAB URDU PARSI ENGLISH FRENCH ARAB ARAB ALL PARSI ENGLISH FRENCH ARAB URDU PARSI RESERVED RESERVED RESERVED RESERVED PARSI TEXT The same ARAB TEXT SOUTHEAST W/O TEXT The same SOUTHEAST ASIA TEXT WEST EU W/O TEXT The same WEST EU GREEK TEXT EAST EU W/O TEXT The same EAST EU CYRILLIC TEXT...
  • Page 14: Trouble Shooting

    TROUBLE SHOOTING 1. RF-STEREO MODEL 1) PICTURE OK / NO SOUND Selected correct system in menu Check the waveform IF 1 of TU101 Check/ Replace TU101 or Input signal Check the voltage at pin 3, 9, 16, 43, Check the waveform at pin 4, 5 of IC501 Check/ Replace IC501 86, 88, 90 of UOCIII Check the waveform at pin 4, 12 of...
  • Page 15 3) No Raster (2/2) Check the B + at D829 cathode Normal Abnormal OPEN Check Fuse of AC line Is the voltage each pin voltage of IC501 Check/ Replace Fuse Check the in/out of r e g u l a t o r ( I C 8 2 2 , Check pin 73 of Check the voltage of IC823, IC824)
  • Page 16 4) No Picture/ No Sound Is any OSD displayed? Check IC501 pin 83, Check receiving system in MENU 84, 85 (R, G, B out) & execute Auto - Program Does the auto - Program operate properly Store on manual -program MENU Check the waveform Check IC501 pin 83, Check SMPS Trans...
  • Page 17 2. AV STEREO/ MONO MODEL Select correct system in menu Check the connection of AV equipment Does the auto - Program Check TU101 Tuner operate properly Check the voltage of pin3, 9, Check the waveform at 16, 43, 86,88,90 of IC501 pin57, 58 of IC501 Check the waveform at Check the signal line of SPK-N,P...
  • Page 18: Printed Circuit Board

    PRINTED CIRCUIT BOARD MAIN - 18 -...
  • Page 19 POWER CONTROL SIDE-A/V DEFLECTION LED + PRE-AMP HARMONICS - 19 -...
  • Page 20: Block Diagram

    BLOCK DIAGRAM - 20 -...
  • Page 21 MEMO - 21 -...
  • Page 22: Exploded View

    EXPLODED VIEW P1112 - 22 -...
  • Page 23: Exploded View Parts List

    Bracket, REAR AV 29FS2RLX-TG CW62A HIPS 51SF LGESY LOCAL EBR30755601 PCB Assembly, MAIN1 M.I CW62A 29FS2ALX-ZG QDRLLBK SY TO KIEV EBR30770317 PCB Assembly, MAIN1 M.I CW62A 29FS2AL-ZG QDKLLBA SY TO LGEAK SKD 6871 EBR30770318 PCB Assembly, MAIN1 M.I CW62A 29FS2ALX-ZG QDLLLCP SY TO MA SKD 6871 EBR30921805 PCB Assembly, MAIN1 M.I CW62A 29FS2ALX SY-MA-ROMANIA SKD...
  • Page 24: Replacement Parts List

    REPLACEMENT PARTS LIST For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the characters at 2nd and 3rd CQ : Polyester RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 25 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the characters at 2nd and 3rd CQ : Polyester RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 26 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the characters at 2nd and 3rd CQ : Polyester RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 27 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the characters at 2nd and 3rd CQ : Polyester RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 28 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the characters at 2nd and 3rd CQ : Polyester RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 29 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the characters at 2nd and 3rd CQ : Polyester RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 30 P/No : 38549D0024A 2006.01.20...
  • Page 31: Svc. Sheet

    SVC. SHEET : 38549D0024A-S...
  • Page 32 Jun, 2006 P/NO : MFL30504604 Printed in Korea...

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