- LG - Life's Good CRT Television User Manual

ManualsBrandsLG Electronics ManualsCRT TVLG - Life's Good CRT Television 29FX6ALX-ZG

COLOR TV

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : CW62A

MODEL : 29FX6ALX

MODEL :

29FX6ALX-ZG

website:http://biz.LGservice.com

e-mail:http://www.LGEservice.com/techsup.html

Summary of content (29 pages)

PAGE 1
website:http://biz.LGservice.com e-mail:http://www.LGEservice.com/techsup.html COLOR TV SERVICE MANUAL CHASSIS : CW62A MODEL : 29FX6ALX MODEL : 29FX6ALX-ZG CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
PAGE 2
CONTENTS Contents ...................................................................................................................2 Safety Precautions..............................................................................................3 Control Descriptions..........................................................................................4 Specifications........................................................................................................7 Adjustment Instructions ......
PAGE 3
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 10 1 2 1 2 3 Remote control handset 4 5 6 Before you use the remote control handset, please install the batteries. See the next page. 7 8 9 MENU 0 TV/AV 3 1. POWER switches the set on from standby or off to standby. 11 TV PR+ PRPR 4 VOL OK 2.
PAGE 4
8. FAVOURITE selects a favorite programme. 9. EYE/ (option) switches the eye function on or off. * POWER MUTE 10 1 10. MUTE switches the sound on or off. 1 2 3 4 5 6 7 8 9 MENU 0 TV/AV 2 11. TV/AV selects TV or AV mode. switches the set on from standby. exits the Teletext mode 3 11 12. I/II/ * selects the language during dual language broadcast. selects the sound output (option). 13. Q.VIEW (or YELLOW) returns to the previously viewed programme. PR 4 VOL OK VOL PR 14.
PAGE 5
Front panel Side panel 5 7 AV IN3 VIDEO 6 @@@@@@@@e? @@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e? @@@@@@@@e? @@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@ @@@@@@@@ @@h?
PAGE 6
SPECIFICATIONS Note : Specification and others are subject to change without notice for improvement. V Scope V This specification can be applied to all the television related to CW62A Chassis. V Test and Inspection Method 1) performance : Follow the Standard of LG TV test 2) Standards of Etc.
PAGE 7
ADJUSTMENT INSTRUCTIONS 1. Application Object These instructions are applied to all of the color TV, CW62A. CPT Assembling As preparatory operations before assembling CPT, wind cotton Tape for protecting to CPT NECK and DY, CPT connection parts. At this moment, end of tape should be over-lapped and wound in direct route to the NECK. Assembling DY to CPT Fix the Magnet to the position as shown picture below. Be careful not to make CPT neck shadow while adjusting DY. 2.
PAGE 8
(5) Open angle of the two tab of 6 pole magnet by isogonic angle and accord with vertical line of Red/Blue and Green. (6) Maintain as angle of (5) and rotate the tab to accord with horizontal line. In case of twisted horizontal line,repeat adjustment of (3) ~ (5) remembering the movement of Red/Green/Blue color. (7) Move the DY to best condition of convergence and attach the CPT to a rubber-chock for fixing DY. 2. White balance IIC Parameter(Address) Program Win31_wb Vcd Slave 8A B(R)_Amp Program 5.
PAGE 9
(6) EW WIDTH Adjust until the outmost left and right lattice of received pattern is accord with 25% of other lattice width. PIP H Position 8. Deflection setting initial data PAL Digital pattern (EU05CH) (7) EW PARABOLA Adjust so that middle portion of the outermost left and right vertical line look like parallel with vertical lines of the CPT.

OSD & TEXT LANGUAGES 0 SOUTHEAST ASIA 0 ENGLISH 1 1 EAST EU CYRILLIC TEXT 2 RESERVED 3 RESERVED 4 RESERVED 5 RESERVED 6 RESERVED 7 RESERVED 0 ENGLISH 1 EAST EU ALL 2 3 WEST EU GREEK TEXT ENGLISH RUSSIAN 3 RESERVED 4 RESERVED 5 RESERVED 6 RESERVED 7 RESERVED 0 ENGLISH 1 EU 7EA 2 3 WEST EU ALL ENGLISH GREEK 4 RESERVED 5 RESERVED 6 RESERVED 7 RESERVED - 12 - 0 ENGLISH 1 INDONESIAN 2 MALAY 3 VIETNAMESE 4 THAI 0 ENGLISH 1 GERMAN 2 RUM

PAGE 12

3 ARAB TEXT 0 ENGLISH 1 ARABIC 2 3 PARSI ARAB ALL 4 RESERVED 5 RESERVED 6 RESERVED 7 RESERVED 4 PARSI TEXT The same ARAB TEXT 5 SOUTHEAST W/O TEXT The same SOUTHEAST ASIA TEXT 6 WEST EU W/O TEXT The same WEST EU GREEK TEXT 7 EAST EU W/O TEXT The same EAST EU CYRILLIC TEXT 8 ARAB W/O TEXT 9 CHINA, INDIA W/O TEXT 0 ENGLISH 1 FRENCH 2 ARAB 3 URDU 0 ENGLISH 1 FRENCH 2 ARAB 3 PARSI 0 ENGLISH 1 FRENCH 2 ARAB 3 URDU 4 PARSI 0 ENGLISH 1 CHINESE 0 ENGL

PAGE 13

TROUBLE SHOOTING 1.

PAGE 14

3) No Raster (2/2) Check the B+ at D829 cathode Normal Is the voltage each pin voltage of IC501 Abnormal OPEN NO Check Fuse of AC line Check/ Replace Fuse OK Check pin 73 of IC501(H_Out) Check the in/out of regulator(IC822, IC823, IC824) Check the voltage of C832 Check/ Replace IC501 NO Check/ Replace DB801 Check Q402 collector waveform Check the voltage pin4 of IC810 Check/ Replace Q402 NO Check/ Replace Fuse and IC810 Check T401 & each pin voltage Check/ Replace IC810, IC802, Q830 Check

PAGE 15

4) No Picture/ No Sound Is any OSD displayed? NO OK OK Check IC501 pin 83, 84, 85 (R, G, B out) Check receiving system in MENU & execute Auto - Program OK Does the auto - Program operate properly NO OK Store on manual -program MENU NO Check the waveform pin73(H-out) NO Check IC501 pin 83, 84, 85 (R, G, B out) Check SMPS Trans Secondary Voltage OK Check pin3 Reset Voltage OK OK Check pin8, 12 SCL, SDA NO Check IC12(EEPROM) & SCL, SDA, Line OK Replace IC501 P13A (R, G, B out of IC501) P13A (R

PAGE 16

PAGE 17

PRINTED CIRCUIT BOARD MAIN - 18 -

PAGE 18

POWER SIDE-A/V CONTROL SMPS LED HARMONIC - 19 -

PAGE 19

BLOCK DIAGRAM - 20 -

PAGE 20

EXPLODED VIEW 943 400 913 170 150 112 174 550 120 300 501 520 580 540 530 330 600 590 310 700 - 21 -

PAGE 21

EXPLODED VIEW PARTS LIST The components identified by mark critical for safety. Replace only with part number specified. is LOCA. No. PART No. 112 6334V29010B CPT,Bare A68QCU770X 000MGB 29INCH FLAT 5/4 48KHZ 6335V29029A CPT,ITC A68QCU770X 770LGF 29INCH FLAT 0.0_0.5G 4/3 16KHZ 120 6400VA0025D Speaker,Fullrange C163A01K1450 - 15W 8OHM 86DB 110HZ 150 6140VC2007F Coil,Degaussing RT-29FB75V 16OHM AL 55T 0.65mM SQUARE 29INCH 170 170-844K Drawing,Assembly CPT EARTH UL1015 AWG22-TBC 0.

PAGE 22

REPLACEMENT PARTS LIST For Capacitor & Resistors, the characters at 2nd and 3rd digit in the P/No. means as follows; LOCA. NO CC, CX, CK, CN : Ceramic CQ : Polyester CE : Electrolytic PART NO RD : Carbon Film RS : Metal Oxide Film RN : Metal Film RF : Fusible DESCRIPTION LOCA. NO PART NO D406 0DRTW00164B RGP15J 600V 1.3V 5UA 50A 250NSEC DO1 D407 0DD060009AC TVR06J 600V 1.4V 10UA 25A 300NSEC DO IC DESCRIPTION IC12 0IAL241610B AT24C16A-10PI-2.7 16KBIT 2KX8BIT 2.

PAGE 23

For Capacitor & Resistors, the characters at 2nd and 3rd digit in the P/No. means as follows; LOCA. NO PART NO C204 0CN4710K519 C205 0CN1010K519 C206 DESCRIPTION CC, CX, CK, CN : Ceramic CQ : Polyester CE : Electrolytic RD : Carbon Film RS : Metal Oxide Film RN : Metal Film RF : Fusible LOCA.

PAGE 24

For Capacitor & Resistors, the characters at 2nd and 3rd digit in the P/No. means as follows; LOCA. NO CC, CX, CK, CN : Ceramic CQ : Polyester CE : Electrolytic PART NO RD : Carbon Film RS : Metal Oxide Film RN : Metal Film RF : Fusible DESCRIPTION LOCA.

PAGE 25

For Capacitor & Resistors, the characters at 2nd and 3rd digit in the P/No. means as follows; LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO CC, CX, CK, CN : Ceramic CQ : Polyester CE : Electrolytic RD : Carbon Film RS : Metal Oxide Film RN : Metal Film RF : Fusible DESCRIPTION P201B 387-A06J GIL-G-06 GIL-J-06 500mM 2.50MM 6P UL R214 0RD5602F609 RD-96T1J56K0 56KOHM 5% 1/6W 3.2X1.8M P401 366-043K 35929-0410 4P 10.00MM 1R STRAIGHT DI R215 0RD2402F609 RD-96T1J24K0 24KOHM 5% 1/6W 3.2X1.

PAGE 26

For Capacitor & Resistors, the characters at 2nd and 3rd digit in the P/No. means as follows; CC, CX, CK, CN : Ceramic CQ : Polyester CE : Electrolytic LOCA. NO PART NO R435 0RS2700K607 R438 0RS0221K619 R440 RD : Carbon Film RS : Metal Oxide Film RN : Metal Film RF : Fusible DESCRIPTION LOCA. NO PART NO RSD02T3J270R 270OHM 5% 2W 12.0X4.0MM R585 0RD0101F609 RD-96T1J1R00 1OHM 5% 1/6W 3.2X1.8MM SML02R0J2R20 2.2OHM 5% 2W 8.6X3.5MM R587 0RD1000F609 RD-96T1J100R 100OHM 5% 1/6W 3.2X1.

PAGE 27

For Capacitor & Resistors, the characters at 2nd and 3rd digit in the P/No. means as follows; DESCRIPTION LOCA. NO RD : Carbon Film RS : Metal Oxide Film RN : Metal Film RF : Fusible LOCA. NO PART NO R902 0RD2200F609 RD-96T1J220R 220OHM 5% 1/6W 3.2X1.8M R855 6322TA080AB Thermistor,NTC TP8D15LKBESMNR 8OHM R903 0RD2200F609 RD-96T1J220R 220OHM 5% 1/6W 3.2X1.8M SK901 6620VBC003A Socket,CRT PCS030A 8P 15.24MM R906 0RD1201A609 RDM92T1J1K20 1.2KOHM 5% 1/2W 6.5X2.

PAGE 28

P/No : 38549D0024A 2006.01.

PAGE 29

P/NO : 38289S0051Y May, 2006 Printed in Korea