LG CE-29Q90ID Service Manual
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LG CE-29Q90ID Service Manual

LG CE-29Q90ID Service Manual

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P/NO : 3828VD0073F
July,2001
Printed in Korea
COLOR TV
SERVICE MANUAL
CHASSIS : MC-006A
MODEL:CE-29Q90ID
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 CE-29Q90ID

  • Page 1 COLOR TV SERVICE MANUAL CHASSIS : MC-006A MODEL:CE-29Q90ID CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. July,2001 P/NO : 3828VD0073F Printed in Korea...

  • Page 2: Table Of Contents

    CONTENTS Contents ......................... 2 Safety Precautions ....................3 Specifications ..................... 4 Control Descriptions ..................5 Disassembly Instructions ................8 Adjustment Instructions ................9 T rouble Shooting ....................19 Wiring Diagram ....................25 Exploded View ....................26 Exploded View Parts List................27 Replacement Parts List ................28 SVC.

  • 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: Specifications

    SPECIFICA TIONS Note : Specification and others are subject to change without notice for improvement. ¡ Video input system: SOUND IF : 33.4MHz (B/G) PAL-B/G, D/K, I/I 32.9MHz (I/I) SECAM-B/G, D/K/L/L’ 32.4MHz (D/K,L) NTSC M 34.4MHz (M) NTSC 4.43(AV) 40.4MHz (L’) ¡...

  • Page 5: Control Descriptions

    8. PSM (Picture Status Memory) recalls your preferred picture setting. 9. I/II selects the language during dual language broadcast. selects the sound output (option). 10. VCR BUTTONS control a LG video cassette recorder. - 5 -...
  • Page 6 11. TV/AV selects TV or AV mode. clears the menu / text from the screen. switches the set on from standby. POWER 12. TURBO PICTURE BUTTON selects Turbo picture. TV/AV TURBO 13. TELETEXT BUTTONS SOUND PICTURE These buttons are used for teletext. For further details, see the ÔTeletextÕ...
  • Page 7 Front panel MENU SOUND D IGIT AL TU RB O S OU ND D IGIT AL TU RB O S OU ND TURBO POWER PICTURE 1. MAIN POWER (POWER switches the set on or off. 2. POWER/STANDBY INDICATOR illuminates brightly when the set is in standby mode. dims when the set is switched on.

  • Page 8: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS Important note Chassis Assy Removal This set is disconnected from the power supply through the Grasp both side of Frame and pull it backward smoothly. converter transformer. An isolating transformer is necessary for service operations on the primary side of the converter transformer.

  • Page 9: Adjustment Instructions

    1) Tune the TV set to receive a digital pattern. 2) Adjust the upper Focus volume of FBT for the best focus of vertical line B. Menu LG 29Ó FLAT LG 29Ó S/F LG 32Ó FLAT 3) Adjust the lower Focus volume of FBT for the best focus of area A.
  • Page 10 VA (Vertical Amplitude) ¡ OPTION Adjustment (SVC MODE:OPTION-1, Adjust so that the circle of a digital circle pattern may be OPTION-2, OPTION-3,Teletext) located within the effective screen of the CPT. 1) Press YELLOW button or OP1,OP2,OP3,OP4 button on HS (Horizontal Shift) SVC Remote Controller .
  • Page 11 OPTION OPTION 200 PR TSEAR I/II SV A2 ST TSEAR I/II SV A2 ST 200 PR Data Data - 11 -...
  • Page 12 OPTION OPTION 200 PR TSEAR I/II SV A2 ST TSEAR I/II SV A2 ST 200 PR Data Data - 12 -...
  • Page 13 OPTION OPTION 200 PR TSEAR I/II SV A2 ST TSEAR I/II SV A2 ST 200 PR Data Data Table 3. OPTION 2 Function Option Code Function Remark WITHOUT ACMS FUNTION ACMS WITH ACMS FUNTION STANDARD CURVE LOW STEP=>RUSH RUSHED CURVE HIGH STEP=>SLOW WITHOUT H/PHONE JACK H/PHO...
  • Page 14 Table 4. OPTION 2 CODE Data DATA ACMS H/PHO WOOFER DATA ACMS H/PHO WOOFER - 14 -...
  • Page 15 DATA ACMS H/PHO WOOFER DATA ACMS H/PHO WOOFER - 15 -...
  • Page 16 DATA ACMS H/PHO WOOFER DATA ACMS H/PHO WOOFER Table 5. OPTION 3 Function Option Code Function Remark 4:3 TV WIDE 16:9 TV NON EU Without D/K CHINA or BB CH+AU With D/K CHINA or BB Table 6. OPTION 3 CODE Data DATA WIDE CH+AU DATA WIDE...
  • Page 17 Table 7. OPTION 4 Funtion CODE Language Funciton OPTION LANG E Only English English+EU 4 English/German/French/Italian/Spanish English+Other EU English/Dutch/Swedish/Norwegian/Danish/Swiss/Portuguess/Roman ian/Polish/Hungarian/Czech/Russian English+FARSI English/Farsi English+Arab+URDU English/French/Arab+Urdu English+India English/Swedish/Norwegian/Danish/Finish English+East-South Asia English/Indonesian/Malaysian/Vietnamese English+THAI English/Thai English+China English/China West Europe English/French/Swedish/Czech/German/Spanish/Itallian T LAN East Europe Polish/Fench/Swedish/Czech/German/Slovenian/Italian/Romanian Turkey English/French/Swedish/Turkish/German/Spanish/Itallian...
  • Page 18 Table 8. OPTION 4 Code Data LANG TLAN LANG TLAN LANG TLAN LANG TLAN LANG TLAN DATA DATA DATA DATA DATA - 18 -...

  • Page 19: Trouble Shooting

    Trouble Shooting Check pin 42 of IC01. Check the voltage at Check / Replace pin 50 of IC01. Q12,Q851,Q852,Q853,D813 3.3V Check the H-OUT voltage at pin 50 of ICP(V)01. Check / Replace Check / Replace IC1,IC301,FR359,FR360, Q804,Q805,R813,ZD801 D339,D349 Check / Replace Check the voltage of C828(+).
  • Page 20 Check if heater element is lighting. Check the heater voltage. Increase the screen Check/Replace voltage of FBT. FR442,R910. Check/Replace Screen is black. Retrace line is CPT. visible. Check the waveform Check FBT & CPT socket at pin 12 of P501A. &...
  • Page 21 DON'T CATCH CHANNEL(MAIN) Check the voltage at pin16 of TU101(Main). Check/Replace Check the voltage at FR848,FR829,D811 pin13 of TU101(Main). R121,ZD101. Check the waveform at Check/Replace pin24 of TU101(Main). R124,IC101. Check the waveform at Check/Replace pin12 of P501A. IC104 Check/Replace Check/Replace IC501,IC701,IC702.
  • Page 22 NO CENTER SPEAKER SOUND (BUT MAIN SOUND OK) Check the waveform at pin 2 of IC660. Check / Replace Check the voltage at Q601,Q602. pin 8 of IC660. Check / Replace Check / Replace IC660 IC601. NO WOOFER SPEAKER SOUND (BUT MAIN SOUND OK) Check the waveform at pin 5 of IC650.
  • Page 23 Check the voltage at pin 40 of IC201. Check / Replace Check the waveform IC201. at pin 21of IC1. Check / Replace Check / Replace Q209,C12. IC2. Check the voltage at pin 1,6 of IC301. Check / Replace Check the waveform FR359,FR360,D339,D349.
  • Page 24 NO FRONT L,R SPEAKER SOUND(PICTURE OK) Check the voltage at pin 10 of IC610(SOUND AMP). Check / Replace Check the waveform at FB882,D885. pin 24,25 of IC601. * AM Sound(for FRENCH) Check the voltage at Check the waveform at pin 8 of IC610. pin 47 of IC601.

  • Page 25: Wiring Diagram

    Wiring Diagram CPT PCB P601A P602A P101B POWER PWB P650A P808B P807 P808A P101A P630A P402 P602A P601A P901A P604A P902A P601B P1104 P630A - 25 -...

  • Page 26: Exploded View

    EXPLODED VIEW P801 - 26 -...

  • Page 27: Exploded View Parts List

    The components identified by mark critical for safety. EXPLODED VIEW PARTS LIST Replace only with part number specified. LOCA. NO PART NO DESCRIPTIONS 6341V29005A BARE CPT ASSY,2426GF239AT 100HZ DY 6400VA0025A SPEAKER,GENERAL 8 OHM 15/25 6400VG0002A SPEAKER,TWEETER 8 OHM 10 3110V00084A CASE,MIDDLE SPEAKER 3550V00117A COVER,MIDDLE SPEAKER...

  • Page 28: Replacement Parts List

    The components identified by mark critical for safety. REPLACEMENT PARTS LIST Replace only with part number specified. LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION D308 0DD100009AQ DIODE,RP1HV(1) TP SANKEN TP SANKEN DIODE,RECTIFIER RU2M V(1) TP SANKEN D339 0DD200009AF D813 0ISK100300A...
  • Page 29 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film The components identified by mark the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film critical for safety. digit in the P/No. means as CE : Electrolytic RN : Metal Film Replace only with part number specified.
  • Page 30 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film The components identified by mark the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film critical for safety. digit in the P/No. means as CE : Electrolytic RN : Metal Film Replace only with part number specified.
  • Page 31 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film The components identified by mark the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film critical for safety. digit in the P/No. means as CE : Electrolytic RN : Metal Film Replace only with part number specified.
  • Page 32 The components identified by mark For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film critical for safety. digit in the P/No. means as CE : Electrolytic RN : Metal Film Replace only with part number specified.
  • Page 33 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film The components identified by mark the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film critical for safety. digit in the P/No. means as CE : Electrolytic RN : Metal Film Replace only with part number specified.
  • Page 34 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film The components identified by mark the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film critical for safety. digit in the P/No. means as CE : Electrolytic RN : Metal Film Replace only with part number specified.
  • Page 35 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film The components identified by mark the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film critical for safety. digit in the P/No. means as CE : Electrolytic RN : Metal Film Replace only with part number specified.
  • Page 36 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film The components identified by mark the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film critical for safety. digit in the P/No. means as CE : Electrolytic RN : Metal Film Replace only with part number specified.
  • Page 37 Z107 166-F01G FILTER,DSS6NZ82A103Q93A DSS306-93FZ10 SG902 165-004A SPARK GAP,AG20PT 152F-L3N/S-23 ACCESSORIES SG903 165-004A SPARK GAP,AG20PT 152F-L3N/S-23 3828VA0231T MANUAL,OWNERS ES LG SP/PO 049G TX 016 SWITCH 6710V00049G REMOTE CONTROLLER MC006A SW1101 140-289A SWITCH,PUSH POWER SDDF3PASP013 6710V00067F REMOTE CONTROLLER MC006A,W/EYE ITALY SW1151 140-313B SWITCH,TACT 2LEAD 160G(TA) LG C&D NON...
  • Page 38 P/N : 3854VA0075A-S1(1/2) Date : 2001.02.01...
  • Page 39 P/N : 3854VA0075A-S1(2/2) Date : 2001.09.14...
  • Page 40 PRINTED CIRCUIT BOARD COMPONENT LOCATION GUIDE C1...B4 C205 ..G3 C607 ..D4 C688..E1 L220..G2 Q112 ..E5 R104..F5 R202 ..G4 R272..F4 R663 ..D2 TP90 ..G1 TP167..A5 C2...B4 C206 ..G3 C608 ..D3 C689..F1 L221..G2 Q113 ..E5 R105..F5 R203 ..G4 R273..E4 R664..E2 TP91..F2 TP168..B4 MAIN C3 ..C4 C207 ..G3...

  • Page 41: Svc. Sheet

    SVC. SHEET : 3854V A0075A-S1 SVC. SHEET : 3854V A0075A-S2...

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