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

COLOR TV SERVICE MANUAL

CHASSIS : MC-049A

MODEL:RT-29FB35RX/VX

CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CONTENTS

Contents....2 Safety Precautions....3 Control Descriptions...4 Specifications....7 Adjustment Instructions...8 T rouble Shooting....12 Printed circuit board....16 Block Diagram....18 Exploded View....20 Exploded View Parts List...21 Replacement Parts List...22 SVC. Sheet....

SAFETY PRECAUTIONS

IMPORT ANT 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. Do not modify the original design without permission of manufacturer.

General Guidance

An isolation Transformer should always be used during the servicing of a receiver whose chassis is not isolated from the AC power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks. It will also protect the receiver and it's components from being damaged by accidental shorts of the circuitry that may be inadvertently introduced during the service operation. If any fuse (or Fusible Resistor) in this TV receiver is blown, replace it with the specified. When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1W), keep the resistor 10mm away from PCB. Keep wires away from high voltage or high temperature parts. Due to high vacuum and large surface area of picture tube, extreme care should be used in handling the Picture Tube. Do not lift the Picture tube by it's Neck.
Before returning the receiver to the customer,
always perform an AC leakage current check on the exposed metallic parts of the cabinet, such as antennas, terminals, etc., to be sure the set is safe to operate without damage of electrical shock.
Leakage Current Cold Check(Antenna Cold Check)
With the instrument AC plug removed from AC source, connect an electrical jumper across the two AC plug prongs. Place the AC switch in the on position, connect one lead of ohm-meter to the AC plug prongs tied together and touch other ohm-meter lead in turn to each exposed metallic parts such as antenna terminals, phone jacks, etc. If the exposed metallic part has a return path to the chassis, the measured resistance should be between 1M and 5.2M. When the exposed metal has no return path to the chassis the reading must be infinite. An other abnormality exists that must be corrected before the receiver is returned to the customer.
Leakage Current Hot Check (See below Figure)
Plug the AC cord directly into the AC outlet. Do not use a line Isolation Transformer during this check. Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor between a known good earth ground (Water Pipe, Conduit, etc.) and the exposed metallic parts. Measure the AC voltage across the resistor using AC voltmeter with 1000 ohms/volt or more sensitivity. Reverse plug the AC cord into the AC outlet and repeat AC voltage measurements for each exposed metallic part. Any voltage measured must not exceed 0.75 volt RMS which is corresponds to 0.5mA. In case any measurement is out of the limits specified, there is possibility of shock hazard and the set must be checked and repaired before it is returned to the customer.

X-RAY Radiation

Warning:
The source of X-RAY RADIATION in this TV receiver is the High Voltage Section and the Picture Tube. For continued X-RAY RADIATION protection, the replacement tube must be the same type tube as specified in the Replacement Parts List.
To determine the presence of high voltage, use an accurate high impedance HV meter. Adjust brightness, color, contrast controls to minimum. Measure the high voltage. The meter reading should indicate 23.5 1.5KV: 14-19 inch, 26 1.5KV: 19-21 inch, 29.0 1.5KV: 25-29 inch, 30.0 1.5KV: 32 inch If the meter indication is out of tolerance, immediate service and correction is required to prevent the possibility of premature component failure.

Leakage Current Hot Check circuit

AC Volt-meter

To Instrument's exposed METALLIC PARTS
Good Earth Ground such as WATER PIPE, CONDUIT etc.

0.15uF

1.5 Kohm/10W

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

PICTURE

TV/AV MENU

Remote control handset
Before you use the remote control handset, please install the batteries. See the next page. 1. POWER switches the set on from standby or off to standby.

T U R B O

12 2. NUMBER BUTTONS switches the set on from standby or directly select a number. 13 3. ARC (Aspect Ratio Control) changes the picture format. 14 4. TURBO PICTURE / SOUND BUTTON selects Turbo picture / sound. 5. D / E (Programme Up/Down) selects a programme or a menu item. switches the set on from standby. F / G (Volume Up/Down) adjusts the volume. adjusts menu settings.

VOL PR REW PLAY

P/STILL

I/II PSM PIP

SSM SLEEP

FAVOURITE Q.VIEW

MIX SIZE PR

TIME STILL PR

REVEAL ? MODE M POSITION 9/4 PIP i
6. VCR BUTTONS (option) control a LG video cassette recorder. 19 7. SSM (Sound Status Memory) recalls your preferred sound setting.
8. I/II (option) selects the language during dual language broadcast (option). selects the sound output. 20 9. PSM (Picture Status Memory) recalls your preferred picture setting.

(With TELETEXT / PIP)

10. TELETEXT BUTTONS (option) These buttons are used for teletext. For further details, see the Teletext section. 11. MUTE switches the sound on or off. 12. TV/AV selects TV or AV mode. switches the set on from standby. 13. MENU selects a menu.

FAVOURITE TEXT

Q.VIEW

MIX SIZE TIME HOLD

REVEAL ? MODE M UPDATE
(With TELETEXT / Without PIP)
14. OK accepts your selection or displays the current mode.
15. LIST displays the programme table. 16. EYE/ (option) switches the eye function on or off.
17. SLEEP sets the sleep timer. 18. Q.VIEW returns to the previously viewed programme. 19. FAVOURITE selects a favorite programme.

SOUND MENU T U R B O

4 20. PIP BUTTONS (option) PIP switches the sub picture on or off. PR +/5 selects a programme for the sub picture. SWAP alternates between main and sub picture. INPUT 6 selects the input mode for the sub picture. SIZE adjusts the sub picture size. 7 STILL 8 freezes motion of the sub picture. 9 POSITION relocates the sub picture in clockwise direction. 9/4 PIP switches on or off the programme scan mode through 4 or 9 sub pictures. COLOURED BUTTONS These buttons are used for teletext (only TELETEXT models) or programme edit.

PR VOL PR REW PLAY FF VOL

I/II PSM

(Without TELETEXT / PIP)

FAVOURITE

SIZE PR

STILL PR

POSITION

9/4 PIP

(Without TELETEXT / With PIP)

Front panel

CF/CT-25/29Q25 series 12

S-VIDEO VIDEO

ON/OFF

MENU OK VOL PR

1. MAIN 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. 3. MENU selects a menu. 4. OK accepts your selection or displays the current mode. 5. D / E (Programme Up/Down) selects a programme or a menu item. switches the set on from standby. F / G (Volume Down/Up) adjusts the volume. adjusts menu settings. 6. REMOTE CONTROL SENSOR Note : Only use the supplied remote control handset. (When you use others, theyll be not able to function.) 7. TV/AV selects TV or AV mode. clears the menu from the screen. switches the set on from standby. 8. (Function) selects volume, EYE (option), picture items or brief auto programme while the menus not display.

RF/RT-28/32FZ15 series

MENU ON/OFF OK VOL PR

L/MONO AUDIO R

S-VIDEO

CF/CT-34M25 series

(L/MONO) R AUDIO

CF/CT-25/29H35 series 12

AV3 VIDEO (L/MONO) AUDIO (R)

5 RF/RT-25/29FB35 series

VIDEO L/MONO AUDIO R
9. +/- (D/E) adjusts the function or selects a programme. switches the set on from standby. 10. TURBO SOUND / PICTURE (option) switches Turbo sound or Turbo picture function on or off. 11. EYE (option) adjusts picture according to the surrounding conditions. 12. HEADPHONE SOCKET (option) Connect the headphone plug to this socket.

RF/RT-25/29FB95 series

RF/RT-25/29CC25 series
13. AUDIO/VIDEO IN SOCKETS (AV3) Connect the audio/video out sockets of external equipment to these sockets. S-VIDEO/AUDIO IN SOCKETS (S-AV) (option) Connect the video out socket of an SVIDEO VCR to the S-VIDEO socket. Connect the audio out sockets of the SVIDEO VCR to the audio sockets as in AV3.
Note : Do not place any heavy objects (over 4Kg) on the RT-25/29FA35 series models.

SPECIFICA TIONS

Note : Specification and others are subject to change without notice for improvement.

F Scope

Chassis
This specification can be applied to all the television related to MC-049A Chassis. Market Middle East, Africa EU Brand Standard input Voltage LG 110-240~, 50/60Hz 230~, 50/60Hz

F Test Condition

MC049A
1) Temperature :20 5C(CST : 40 5C) 2) Relative Humidity:65 10% 3) Use the parts only designated in B.O.M.,PARTS SPEC.,or drawings. 4) Follow each drawing or spec for spec and performance of parts,based upon P/N of B.O.M 5) Warm up TV set for more than 20min. before the measurement.

F Test and Inspection Method
1) performance:Follow the Standard of LG TV test 2) Standards of Etc. requirement - Safety: IEC60065 - EMC: EN55020,EN55013

F General Specification

No 1 Item Receiving System Specification PAL,SECAM BG PAL/SECAM DK PAL-I/I NTSC M NTSC 4.43(AV) SECAM-L/L NTSC M/ PAL M/N 2 Available Channel VHF : E2 ~ E12 UHF : E21 ~ E69 CATV : S1 ~ S20 HYPER : S21 ~ SInput Voltage 110-240V~, 50/60Hz 230V~, 50/60Hz Market Screen Size EU,CIS, China, Asia, Africa Flat 25, 29, 28, 32 NOR 25, 27, 28, 7 Tuning System Operating Environment FVS 100Program 1) Temp : 0 ~ 45 deg 2) Humidity: 85% under 8 Storage Environment 1) Temp : -20 ~ 60 deg 2) Humidity: 85% under 200 PR. (W/O TXT) Non EU EU OPTION Remark For EU/ For Non EU

ADJUSTMENT INSTRUCTIONS

1. Application Object
These instructions are applied to all of the color TV, MC-049A. CPT Assembling
4. Purity & Convergence adjustment
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. Fix the Magnet to the position as shown picture below. Be careful not to make CPT neck shadow while adjusting DY.
Convergence Magnet 6Pole 4 2

2. Notes

(1) Because this is not a hot chassis, it is not necessary to use an isolation transformer. However, the use of isolation transformer will help protect test instrument. (2) Adjustment must be done in the correct order.But the adjustment can be changed by consideration of mass production. (3) The adjustment must be performed in the circumstance of 255C of temperature and 6510% of relative humidity if there is no specific designation. (4) The input AC voltage of the receiver must keep rating voltage in adjusting. (5) The receiver must be operated for about 15 minutes prior to the adjustment.
Assembling DY to CPT HEAT RUN Degaussing STC Adjustment

PURITY Adjustment

15 ~ 20mm

3. Focus adjustment

3.1. Preliminary steps
Tune the TV set to receive a digital pattern. (SVC mode:Automatically mode change the STANDARD MODE)
DY Fixing SCREEN Voltage adj. W/B Fixing FOCUS not yet ADJ. STC not yet ADJ. DYC not yet ADJ.

Let the screen Standard condition. Operate Heat-Run at least 15 minutes. Torque is to be 9-11 kg f.cm when fixing DY.

3.2. Adjustment Method

1) Single Focus CPT Adjust the upper Focus volume of FBT for the best focus of horizontal line A,vertical line B. 2) Double Focus CPT a) Adjust the lower Focus volume of FBT for the best focus of vertical line B. b) Adjust the upper Focus volume of FBT for the best focus of area A. c) Repeat above step 1) and 2) for the best overall focus.
4.1. Color purity adjustment
(1) It makes CPT or CABINET enough to demagnetization. (2) Receive the signal of red raster. (3) Loosen fixed screw of DY and closely to CPT funnel part. (4) Check the center of screen that PURITY MAGNET of CPT by crossing adjustment. At this time, 4 & 6 pole magnet is located to magnet of nothing. (5) Move the DY to make equal red on whole screen and it does not to make the DY by fixed screw after check a simple color of Red/Green/Blue and white raster whether or not it is a pollution of color. (At this time, take care raster of screen and DY must fixing in the condition which maintains a horizontality.) (6) Check the TV set by move direction.
4.2. Convergence adjustment
These adjustments can the best condition of focus after finished purity adjustment. (1) Receive the signal of cross hatch that BACK RASTER is black. (2) Adjust brightness and luminosity till dot appear 9 ~12. (3) Open angle of the two tab of 4 pole MAGNET by isogonic angle and accord with vertical line of red and blue color in the middle of screen. (4) Maintain as angle of (3) and rotate the tab to accord with vertical line of Red and Blue color in the middle of screen.
<Fig 1. PAL Digital Pattern(EU05CH)>
(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 fixed DY.
2. White balance IIC Parameter
Program Vcd Slave TWBeng2.0 24C16 R_Amp Program Sub Add TWBeng2.0 1C1 7A7B 1 Program Eprom_Slave R_Cut TWBeng2.0 1C1 TWBeng2.0 AE B_Amp TWBeng2.0 1CA 7E7F 1 Speed Delay B_Cut TWBeng2.0 1C1

5. Screen voltage adjustment
(1) Receive the PAL or SECAM(NTSC) signal into RF mode regardless of channel. (2) If you press the ADJbutton in LINE SVC mode(IN-START button),the LINE SVC mode changes to screen adjustment mode. (3) Turn the Screen Volume of FBT to change luminance of White signal center as shown below. (4) Press the EXIT TV/AV button to exit SVC mode.
Start Bit Stop Bit Offset Polarity EP_Rom_S Speed/ Plus
6. White balance adjustment
NOTE : When adjusting white balance automatically,connect the adjustment JIG in SVC mode.(When pressing INSTART,MUTE button on remote control for adjustment orderly,it changes to SVC mode and screen displays CUT OFF.) (1) Receive 100% white pattern. (2) Adjust LOW LIght status(4.5FL) of CUT R,CUT B at CG:70. (3) Adjust HIGH LIght status(35FL) of WDR R,WDR B at WDR G:380. (4) Repeat above step (2) and (3) for the best condition each status of High Light and Low Light. <Table 1> White Balance Color analyzer Menu X Y Color Temperature EU 9000oK N-EU 13000oK
<CAUTION> W/B Program Twbeng_v2.0 - W/B adjustment after Cutoff : Instart -> adj. -> mute(cutoff)-> tv/av(wb) Release key is EXIT key - W/B adjustment : Instart -> mute(cpuoff) -> Release key is TV/AV key
7.Deflection setting Data Adjustment
7.1 Adjustment preparation
(1) Tune the TV set to receive an Digital pattern(EU05CH). (2) Deflection setting data adjustment is operate by SVC communicator. (3) Enter the deflection mode by selection SERVICE1 key on SERVICE MENU after enter the adjustment mode by pressing LINE SVC MODE(IN-START KEY). (4) Enter the deflection mode by pressing ADJUST key. (5) Use the CH D ,E key to select adjustment item. (6) Use the VOL F ,G key to increase/decrease data. <Note> (1) When adjusting a deflection,adjust N50Hz of PAL signal first and adjust a deflection at Normal 60Hz(NTSC). (2) Adjust a deflection as shown below. PAL 4:3 -> NTSC 4:3 (3) After finishing deflection adjustment,press the EXIT key to exit in adjustment mode. (4) Wide Models After adjusting 16:9(50Hz), Readjust 14:9(50Hz) -> ZOOM(50Hz) -> 4:3(50Hz) -> 16:9(60Hz) -> 14:9(60Hz) -> ZOOM(60Hz) -> 4:3(60Hz).
<Table 2> White Balance Initial Data Menu LOW LIGHT CR CG CB HIGH LIGHT WR WG WB <Table 3> White Balance Initial Data 1. IC
Name VCD IC EP_ROM VCT48xyi 24C16 Maker Micronas ST, ATMEL 0 F Algorithm

Range 0 ~ ~ ~ ~ ~ ~ 511

DATA 380 430

7.2 Adjustment

(1) VL(Vertical Linearity) adjustment: Adjust the top & bottom size of inner circle to be equal. (2) VA (Vertical Amplitude) adjustment: Adjust so that the circle of a digital circle pattern should be located interval of 6~7mm from the effective screen of the CPT. (3) SC (Vertical S correction) adjustment: Adjust so that all distance between each lattice width of top/center/bottom are to be the same.
Menu VS VA VL SC HS EW ET <Fig. 2>PAL Digital pattern (EU05CH) (4) VS (Vertical Shift) adjustment: Adjust so that the geometric vertical center line is in accord with vertical center line of CPT. (5) HS(Horizontal Shift) adjustment: Adjust so that the geometric horizontal center line is in accord with horizontal center line of CPT. (6) EW(East-West Width) adjustment: Adjust until the outmost left and right lattice of received pattern is accord with 25% of other lattice width. (7) ET(Trapezoidal) adjustment: Adjust to make the length of top horizontal line same with it of the bottom horizontal line. (8) EP(Pin Cushion) adjustment: Adjust so that middle portion of the outermost left and right vertical line look like parallel with vertical lines of the CPT. (9) ANGLE adjustment When you adjust the angle, adjust correctly raster of left/right screen. (10) BOW adjustment A standard is not changing the default value. (11) CRNU(Upper Corner Correction) adjustment: After finished EP adjustment,adjust vertical line of lefttop,right-top of screen to the best straight line. (12) CRNL(Lower Corner Correction) adjustment: After finished EP adjustment,adjust vertical line of leftbottom ,right-bottom of screen to the best straight line. (13) PIP(PIP Position) Adjust until the distance between PIP and main picture becomes about 1~2mm by using VOL +/- key. EP ANGLE BOW UPCOR LOCOR PIP_H
Variable range -512~511 -512~511 -512~511 -512~511 32~2047 -256~255 -512~511 -512~511 -512~511 -512~511 -512~511 -512~511 0~40
N50Hz(PAL) 80 -110 -70 -12 -20 15
N60Hz(NTSC) 70 -130 -69 -15 -20 15

8.OPTION Adjustment

8-1. Preparation for Adjustment
1) This option adjustment decides function in accordance with model. Press the SVC TX adjustment button(IN-START button) at SVC mode, then adjust the option at OPTION1 mode. 2) Mark the option adjustment data like [111,111,111,111] in BOM.

8-2. Adjustment Method

OPTION data input 1) Function : 1, No function : 0 2) Select each OPTION function by the CH Up/Down button and then set up each OPTION by the VOL Up/Down button at OPTION 1,2,3,4.

8-3. OPTION Function

Option AV3 Code S-VIDEO DVD SCART WIDE Without A/V3 With AV3 With out S-VIDEO With S-VIDEO Without COMPONENT(480i) With COMPONENT(480i) PHONE JACK SCART JACK Not WIDE MODEL WIDE MODEL Without GAME function With GAME function Not 21inch MODEL 21inch MODEL NICAM NICAM & FM STEREO Function
<Fig. 3> PIP H Position

21inch

- 10 -

8-4. OPTION2 Function

Option TSEARCH Code 200PR EYE TX1 8KEY 4KEY 4KEY 8KEY Function Without TURBO SEARCH With TURBO SEARCH 100 PROGRAM SAVE 200 PROGRAM SAVE Without EYE With EYE

8-5. OPTION3 Function

Option SYSTEM Code ACMS TOP CH+AU HDEV Without ACMS Function With ACMS Function FLOT TXT TOP TXT Without D/K CHINA or BB SYSTEM With D/K CHINA or BB SYSTEM China, Australia Function REMARK

- 11 -

TROUBLE SHOOTING

RF- STEREO

Selected correct system In menu
Check the waveform IF 1 of TU101

Check / Replace TU 101

NO Check The Voltage At pin 2, 19, 20, 21, 24 of IIC11
Check the waveform At pin 4, 5 of IC11
Check The voltage At pin of IC821, IC822, Q807
Check the waveform At pin 2, 4 of IC601
Check / Replace C821, IC822, Q807
Check the Voltage At pin 6 of IC601

Check / Replace Q601

Check the waveform At pin 8, 9, 11, 12 of IC601
Check the Voltage At pin 5, 6 of IC602
Check / Replace F806, D828(D805)

No Raster / Sound OK

Check the Heater voltage of CPT (6 ~ 6.5Vrms) OK NO
Check HV, Screen Voltage of CPT NO OK
Check R, G, B out of CPT Board NO
Check the Heater pulse of FBT T402 OK NO

Check FBT T402

Check 200V line of CPT Board & if no problem check and Replace

Check IC901, P903A

Check FR901, P402A P402B, FR 401

- 12 -

NO RASTER CHECK B+ At D829 cathode Normal Is the voltage at each pin voltage of IC11 Yes Check pin 60 Of IC11(H - Out) Yes Check Q402 Collector waveform No Check the In/out of regulator (IC821, IC822 IC823, IC824 IC825) Ok Check the Voltage Of C803 Ok No Check / Replace Fuse Abnormal Open

Check Fuse of AC line

No Check & Replace IC11 No Check & Replace Q402

140 ~ 310V

Check / Replace DB801 No
Check the Voltage Pin 4 of IC801 Ok 18 ~ 20V
Check / Replace IC801, IC802, IC826 Check T401 & each pin voltage Yes No
Check / Replace Fuse IC801
No Check & Replace T401 No Check & Replace Q401
Check Fuse and Rectifition Diode of secondary Load of SMPS trans(T803)
Check Q401 Collector waveform Yes

Check / Replace IC11

Check & Replace T402

- 13 -

No Picture / No Sound

Is any OSD displayed? No OK Check IC11 pin71,72,73 (R,G,B out) OK Check receiving system in MENU & execute Auto - Program. OK
Does the auto - Program Operate properly. OK Store on manual - program MENU No Check 1.8V, 3.3V, 5V DC Voltage OK Check pin18 Reset Voltage 3.3V DC OK No Check IC12(EEPROM) & SCL, SDA, Line No Check IC13 (Reset IC) No Check SMPS Trans Secondary Voltage Go to No Sound / Picture OK
Check pin40(V out 1) 1V p-p
Check pin57, 58 SCL, SDA 3.3V swing OK

Relace IC11

Q501, Q503, Q504 (R, G, B out of IC11)
Check / Replace CPT Board component

- 14 -

AV Stereo
Select correct system In menu
Check the connection Of AV equipment AV Check the the waveform At pin16, 17 of IC11

OK NO NO

Check TU101 Tuner
Check the waveform At pin4, 5, of IC11
Check the voltage Of pin2, 19, 20, 21,24 of IC11
Check waveform At pin 2, 4 of IC601
Check the signal line of SPK-L,R
Check the voltage At pin6 of IC601
Check pin 55 (mute) of IC11
Check the vpltage At pin7, 5 of IC601
Check /Replace D828, D805, F806
Check the connection of side or Front AV Board P603A

Connect the Board

Replace IC601

- 15 -

PRINTED CIRCUIT BOARD

CPT+VM

- 16 -

COMPONENT LOCATION GUIDE

C10.C4 C11.C4 C12.C3 C13.C4 C15.C1 C16.C3 C17.C1 C18.C4 C19.C4 C21.F1 C22.B2 C23.A4 C24.B3 C25.B4 C101.B5 C102.A2 C104.A5 C105.B5 C106.A4 C107.A5 C108.A5 C109.B4 C110.A4 C111.A5 C121.A5 C122.A5 C123.A5 C124.A5 C125.A5 C126.B5 C127.A4 C180.C2 C181.C2 C183.C2 C184.C2 C185.C1 C201.C5 C202.C5 C205.C5 C207.B5 C209.B5 C211.C5 C214.C5 C215.C5 C216.B5 C217.B5 C218.D5 C219.E5 C220.D5 C221.E5 C223.E5 C224.D5 C225.D5 C226.D5 C251.C1 C252.B1 C253.C1 C254.C1 C255.C1 C256.C1 C259.C1 C260.C1 C261.C1 C301.E4 C302.E4 C303.E4 C304.D4 C306.G3 C308.E4 C309.E4 C310.E4 C401.D3 C402.G4 C403.G3 C404.G4 C405.F4 C406.F4 C407.D4 C408.F3 C409.G3 C410.F3 C411.F4 C413.E5 C414.E5 C415.E4 C416.E5 C417.E4 C419.E4 C420.E5 C421.E5 C422.E5 C450.E5 C457.E5 C501.B4 C502.B4 C503.B3 C504.B4 C505.C3 C506.C3 C507.B2 C508.B2 C509.B4 C510.B3 C511.C4 C512.C3 C513.C4 C514.B5 C515.B3 C516.B3 C517.C4 C518.B3 C519.C4 C520.C4 C521.C4 C522.C4 C523.C4 C524.C5 C525.C4 C526.C4 C527.C4 C528.C4 C529.C4 C530.C4 C531.C4 C532.C4 C533.C4 C534.B4 C535.B4 C536.B4 C537.B4 C538.B4 C539.D4 C540.B4 C541.C3 C542.B5 C543.C5 C545.C4 C547.B3 C548.C4 C549.C1 C550.B3 C561.C3 C562.C2 C601.A3 C602.B2 C603.A3 C604.A3 C605.A2 C606.A2 C607.A3 C608.A2 C609.A3 C610.A3 C611.A3 C612.A2 C613.A2 C614.A2 C615.B4 C616.A4 C617.B4 C618.A4 C619.B4 C620.A4 C621.A2 C622.A3 C623.D5 C624.D5 C625.B5 C626.B5 C627.A2 C631.D5 C632.D4 C634.D4 C635.D5 C636.E5 C637.C5 C801.F2 C802.F1 C803.G2 C804.G2 C806.G2 C807.F2 C808.F2 C809.F2 C810.F3 C811.F2 C813.E2 C814.G2 C815.F3 C817.G3 C818.F1 C819.G3 C820.D1 C821.E2 C822.E2 C823.E1 C824.D1 C825.G2 C826.D1 C827.D2 C828.D2 C829.D2 C830.D2 C831.D3 C832.D2 C833.D3 C834.D3 C835.E3 C836.E3 C837.E3 C838.E3 C839.D3 C840.E2 C841.G3 C842.G3 C843.G3 C844.F2 C845.D1 C846.F2 C847.E3 C848.D2 C868.D3 C901.B1 C902.A1 C903.A2 C904.B2 C905.A1 C906.B1 D180.C2 D181.C2 D301.E4 D302.F4 D401.G4 D402.G3 D403.G4 D404.E5 D405.E5 D406.E5 D407.E5 D408.D4 D444.E5 D501.B3 D502.B2 D503.B3 D601.B2 D602.A3 D603.A2 D604.A3 D605.A4 D606.D5 D801.F3 D802.F3 D803.F3 D805.D3 D815.G2 D821.E2 D823.E1 D827.D2 D828.D2 D829.D3 D830.E3 D854.E1 D901.A1 D902.A1 D903.A1 D904.B2 DB801.G2 F802.E2 F803.G1 F804.D3 F805.E2 F806.E2 F801A.G2 F801B.G1 FB201.C1 FB401..F4 FB801..F2 FB802..F2 FB803..F3 FB825..E3 FR401..F5 FR402..F5 FR403..F4 FR404..F5 FR405..F5 FR901.B1 HIC01..C2 IC11.B4 IC12.A4 IC13.A4 IC301.E4 IC302.E4 IC601.A3 IC602..D5 IC801..G2 IC802.F3 IC821..D2 IC822.E1 IC824.E1 IC825..D1 IC826..D3 IC853.E1 IC901.A1 P101.A4 P102.A5 P103.A5 P104.A2 P181.C1 P410.G5 P601.B2 P602.B2 P607.B2 P901.A2 P903.B2 P10A.B2 P11A.F1 P12A.C1 P13A.C2 P14A.C1 P15A.B2 P1601A.B2 P1602A.D1 P201A.C1 P202A.C4 P401A.G4 P401B.G4 P401C.G3 P401D.G3 P402A.E5 P403A.E5 P403B.B1 P404A.E5 P551A.C3 P600A.A3 P603A.B1 P604A.B2 P605A.B2 P606A.A3 P801A.G1 P801B.G1 P801C.G1 P802A.E1 P802B.E1 P903A.C2 P903B.B1 PJ201..C1 Q11.E1 Q41.C2 Q42.C2 Q102.B5 Q103.B5 Q104.B4 Q105.A3 Q106.A3 Q180.C2 Q181.C2 Q182.C2 Q183.C2 Q184.C1 Q185.C2 Q186.C2 Q187.C2 Q301.D4 Q303.F4 Q402.G3 Q403.E5 Q501.B2 Q502.B2 Q503.B3 Q504.C3 Q505.B5 Q506.C2 Q507.B5 Q508.D5 Q509.D5 Q510.B3 Q601.A2 Q602.D5 Q801.D3 Q802.D1 Q803.D1 Q804.D2 Q805.E1 Q807.D2 Q808.D2 R10.B2 R11.C2 R12.C4 R13.E1 R14.D1 R15.F1 R16.D1 R17.D1 R18.D1 R19.D1 R20.D1 R21.C2 R24.A4 R25.A4 R26.B2 R27.C2 R28.B5 R29.C3 R30.C3 R31.C3 R32.D1 R33.C3 R34.C5 R35.C4 R36.B2 R37.D1 R38.A4 R39.C2 R42.D1 R101.B5 R102.B5 R103.A5 R104.A5 R105.B5 R106.B5 R107.B5 R108.B5 R109.A4 R110.A4 R111.B4 R112.A5 R113.B5 R121.A5 R122.A5 R124.A4 R125.D4 R126.A5 R127.A5 R128.A4 R129.A4 R180.B2 R181.C2 R182.C2 R183.C2 R184.C2 R185.C2 R186.C2 R187.C2 R188.C2 R189.C1 R190.C1 R191.C2 R192.C1 R193.C2 R201.D5 R202.B5 R203.C5 R204.C5 R205.C5 R206.D5 R207.D5 R208.D5 R209.D5 R210.D5 R211.E5 R212.B5 R213.C5 R214.D5 R215.D5 R217.C5 R218.C5 R219.C5 R251.C1 R252.B1 R253.B1 R301.F4 R302.E4 R303.D4 R304.E4 R305.D4 R306.D4 R307.D4 R308.D4 R309.D4 R310.D4 R312.D4 R313.G4 R314.G4 R315.G3 R316.E4 R317.E4 R318.E4 R319.E4 R320.E4 R321.E4 R322.E4 R323.F4 R324.F4 R325.E4 R326.E4 R328.E4 R401.C3 R403.G4 R404.G4 R405.E3 R406.E4 R408.F4 R409.G4 R410.F4 R411.G4 R412.D4 R413.G4 R414.F5 R415.E5 R416.E5 R417.E5 R418.E5 R419.E5 R420.E5 R421.F3 R422.G3 R448.E5 R449.E5 R501.B3 R502.B4 R503.B4 R504.B3 R505.B3 R506.B3 R507.B4 R508.B4 R509.B2 R510.C2 R511.C2 R512.B3 R513.C3 R514.C3 R515.B3 R516.B3 R517.B3 R518.B3 R519.B3 R520.B4 R521.D4 R522.B2 R526.B4 R527.C4 R532.C4 R534.D5 R535.D5 R536.D5 R537.D5 R538.D5 R539.B5 R540.B5 R541.B3 R542.B5 R543.B5 R544.C2 R545.C3 R551.C3 R555.B5 R556.C2 R557.B3 R558.B3 R601.A2 R602.A2 R603.A2 R604.A2 R605.A3 R606.A4 R607.A2 R608.A2 R609.A2 R610.A3 R611.A3 R612.A4 R613.B3 R614.A4 R615.A2 R616.A4 R617.B5 R618.B5 R619.B5 R620.A4 R621.B5 R622.B5 R623.B5 R624.B5 R631.D5 R632.D5 R633.D5 R634.C5 R635.D5 R664.B5 R801.G1 R802.F1 R803.F2 R804.G2 R805.G2 R806.G3 R807.G3 R808.F3 R809.F3 R810.F3 R812.G3 R814.G3 R816.D1 R817.D1 R823.D1 R824.D3 R825.E1 R827.D3 R828.E2 R831.D2 R838.D1 R840.D3 R841.D3 R842.D3 R843.D3 R844.D3 R845.D2 R846.D3 R847.D3 R858.D2 R901.B1 R902.B1 R903.B1 R906.A1 R907.A1 R908.A1 R909.A1 R910.A1 R911.A2 R912.B1 R925.B1 RL801..E1 SG901.A1 SG902.A1 SG903.A2 SG904.A2 SG905.A1 SG906.A1 SG907.A1 SK901.A1 SW11..E1 SW12..E1 SW13..D1 SW14..D1 SW15..D1 SW16..D1 SW801.G1 T401.G4 T402.F5 T801.G1 T802.F1 T803.E2 TH801..F2 TP1.A4 TP2.A4 TP3.A4 TP4.A5 TP5.A4 TP6.A4 TP27.A4 TU101.A5 TU102.A5 VD801.G1 VD802.G2 X11.C4 Z101.B4 ZD10.B2 ZD122.B5 ZD401.D4 ZD402.E3 ZD447.E5 ZD501.A3 ZD502.C4 ZD601.B4 ZD801.G3 ZD803.D3 ZD910.B1 ZD911.B1 ZD912.B1

- 17 -

[ Po wer ]
EYE( Op t. ) PRE-AMP LED EEPROM

IC825 9V

Tilt ( Op t.)

ST-3. 3V

SMPS TRANS

ST-1.8V 3. 3V

SDA- 9489X ( PIP Processor )

14V 11 Relay

ST-1.8V 8V ST-3.3V

BLOCK DIAGRAM

- 18 3. 3V

IC821 5V 17V 3.3V

LA7222 ( Aud io Swit c h)

PIP & AV SW ( OPT. )

6.5V 12 VCT49XYI

LA42152 So und AMP

17V 13 So und Vcc

14V( FBT)

LA 7845 (V-AMP)

28V (FBT)

33V 16 H-DRIVE

Tuner ( Main)

Tuner ( Sub )

EW AMP TDA6109

110V( Flat) 120 V( No rm al) 18

200 FBT) V( 12V

STK396 -110 ( VM IC)

HIC920

SPKR-L
SPKR-R SIF GAME MODULE CLK KEY IR STICK VIDEO AUDIO VS EHT PRESET

PR+ PRVOL+ VOLOK Menu

L/ R LA42071 LA42072 LA42152

LA7222

CPT/ VM TDA6109

SW1 HS

IFIN+ IFIN-

VER. TDA4863

AIN1 L/ R AIN2 L/ R AIN3 L/ R

- 19 -

VCTi 49xxl
Va Vb RGB o ut SVM o ut Hf b Hout

HOR. / EW

AUDIO VIDEO

G/ Y Vid eo

AOU T1 VOUT 1/2 PIP VIDEO RIN GIN BIN SVCC
+ 110V + 12V + 5V + 3. 3V + 1. 8V

POWER. STR X6757

EXPLODED VIEW

170 112

- 20 -

EXPLODED VIEW PARTS LIST

LOCA. No.
The components identified by mark critical for safety. Replace only with part number specified.

PART No.

6334V29010B 6335V29015A

DESCRIPTIONS

CPT, A68QCU770X 000MGB 48KHZ LPDSG S/TINT EXPORT(CASA-S) CPT ASSEMBLY, A68QCU757X 770MIF 0.3G[V] 0.3G[H] LPDSG M,ITC11,S/F SPEAKER, GENERAL C080P22K1450 ESTEC 8 OHM 10/15W BRAC KET, SPK RT-29FB30V C/SKD MC022A POLYESTER. COIL, DEGAUSSING 29 FLAT ASSY (W) SELLA TECH 2001R+D07L DY(DEFLECTION YOKE), 6150Z*1248G 29 LPDSG TINT CPT EARTH, 29 98T 4LUG LEAD SET SPRING(50MM) CABINET ASSEMBLY, RT-29FB35V.AMLLKX STEREO E_PHONE MC049A. BUTTON, CONTROL RT-25FB35VX ABS, HF-380 6KEY 7227S00117A SPRING, COIL BUTTON, POWER RT-25FB35VX ABS, HF-380 1KEY 7227S00117A BACK COVER ASSEMBLY, RT-29FB30RX SY-SET 2PHONE SY LOCAL BACK COVER ASSEMBLY, RT-29FB35RX 2PHONE SY-SET 8G068 PWB(PCB) ASSEMBLY, SUB CPT MC-049A 29 FLAT+VM(W/O PIP) : LGESY PWB(PCB) ASSEMBLY, MAIN MC049A RT-29FB35VX.LLLLSM8 PWB(PCB) ASSEMBLY,MAIN MC049A RT-29FB35RX.LTLLSC8 SCREW, DRAWING HEXAGON HEAD SCREW TAP TITE(P), TRUSS HEAD D4.0 L16.0 MSWR3/FZB POWER CORD, 174-009Q LGESY LOCAL KUOCHANG VDE/SEMKO

330 400

6400VA0031A 4810V00573B 6140VC2005F 6150V-5009B 170-844K 3091V00438U 5020V00652E 320-070S 5020V00653D 3809V00298P 3809V00298Q

510 520

6871VSMJ31B 6871VMMT20T 6871VMMT52U
332-229H 1PTF0403116 6410VEH001E

- 21 -

REPLACEMENT PARTS LIST
For Capacitor & Resistors, the charactors at 2nd and 3rd digit in the P/No. means as follows; CC, CX, CK, CN : Ceramic CQ : Polyestor CE : Electrolytic RD : Carbon Film RS : Metal Oxide Film RN : Metal Film RF : Fusible

LOCA. NO

PART NO

DESCRIPTION

HIC920 IC11 IC11 IC12 IC13 IC301 IC302 IC601 IC801 IC802 IC821 IC822 IC824 IC825 IC826 IC853 IC901 0IZZVF0018A 0IZZVA1001D 0IFA752700A 0IKE455800E 0ILI817000G 0IMMRSG036C 0IMCRMN026A 0IMCRKE019A 0IMCRKE018A 0IMCRKE020A 0IMCRAU003A 0IMCRAU004A 0IMCRPH009A 0IPMGPH002A 0IPMGSA021C 0IPMGSK015B 0ISK110000A STK396-110 11P VCT3804F DIP 64P VCT4973F M24C16-WBN6 KA75270Z 3 TDA4863A KIA4558 8DIP LA42152 STR-X6756 LTV817M-VB 4P KIA78R33API TO220 ST 3.3V KIA78R05API TO220 ST 5V KIA78S06P 3P TO-92 S1117-18PIC SE110N(LF12) 3P 110V S1117-33PIC TDA6109JF D180 D181 D301 D302 D403 D404 D405 D406 D407 D408 D501 D502 D503 D601 D602 D603 D604 D801 D802 D803 D815 D821 D823 D827 D828 D829 D830 D854 D901 D902 D903 D904 D920 DB801 Q401 ZD122 ZD401 ZD402 ZD501 ZD601 ZD801 ZD803 ZD910 ZD911 ZD912 0DR140059AC 0DRTW00164B 0DRTW00164A 0DRTW00164B 0DRTW00164B 0DRTW00164A 0DR100009FA 0DR100009FA 0DR100009FA 0DR060009AA 0DRTW00164A 0DRTW00141A 0DRTW00141A 0DR400009AB 0DRTW00164A 0DR060009AA 0DR210009AC 0DR210009AC 0DR210009AC 0DR140049AC 0DD060009AC 0DRTW00131C 0DS141489AB 0DS141489AB 0DS141489AB 0DS141489AB 0DS141489AB 0DS141489AB 0DS141489AB 0DS141489AB 0DS141489AB 0DS141489AB 0DS141489AB 0DS141489AB 0DSFC00011A 0DZ330009DG 0DZ510009BF 0DZ110009CF 0DZ110009CF 0DZ820009AH 0DZ620009AH 0DZ510009BF 0DZ510009BF 0DZ510009BF 0DZ510009BF
1N4148 - 20V 1N4148 - 20V 1N4005GP 1N4148 - 20V RGP15J TP52 DO15.V 1.5A 50A RGP10J TP52 DO41.V 1A 30A RGP15J TP52 DO15.V 1.5A 50A RGP15J TP52 DO15.V 1.5A 50A RGP10J TP52 DO41.V 1A 30A 1N4148 - 20V 1N4148 - 20V 1N4148 - 20V 1N4148 - 20V 1N4148 - 20V 1N4148 - 20V 1N4148 - 20V 1N4148 - 20V EU1DGR DO41 200V 1.0A 30A 50NSEC EU1DGR DO41 200V 1.0A 30A 50NSEC EU1DGR DO41 200V 1.0A 30A 50NSEC TVR06J DO41 600V 0.6A RGP10J TP52 DO41.V 1A 30A 1N4148 - 20V SFAF504G ST ITO220 200V 5A SFAF504G ST ITO220 200V 5A RU4JGF DO201AD 600V 3.0A RGP10J TP52 DO41.V 1A 30A TVR06J DO41 600V 0.6A BAV21 TP PHILIPS DO35 200V BAV21 TP PHILIPS DO35 200V BAV21 TP PHILIPS DO35 200V 1N4004A T-81 TVR06J - 600V 250NSEC TS6P05G ST TSOP-6 600V 6A FFPF60B150DS GDZJ33B DO34 0.5W 33.0V GDZ5.1B DO34 0.5W 5.1V GDZJ11B DO34 0.5W 11.0V GDZJ11B DO34 0.5W 11.0V MTZJ8.2B DO34 - 8.2V 5UA MTZJ6.2A DO34 0.5W 6.2V 150UA GDZ5.1B DO34 0.5W 5.1V 0.02A GDZ5.1B DO34 0.5W 5.1V 0.02A GDZ5.1B DO34 0.5W 5.1V 0.02A GDZ5.1B DO34 0.5W 5.1V 0.02A

TRANSISTOR

Q104 Q11 Q180 Q181 Q182 Q183 Q184 Q185 Q186 Q187 Q301 Q303 Q401 Q401 Q402 Q501 Q502 Q503 Q504 Q505 Q506 Q507 Q510 Q601 Q801 Q802 Q803 Q804 Q805 Q807 Q808 Q901 0TR319709AB 0TR127409AB 0TR205900AB 0TR437000BA 0TR127409AB 0TR198009BA 0TR534309AA 0TR198009BA 0TR198009BA 0TR534309AA 0TR534309AA 0TR198009BA 0TR198009BA 0TR534309AA 0TR198009BA 0TRSA10001C 0TR198009BA 0TR198009BA 0TR198009BA 0TR198009BA 0TR534309AA 0TR534309AA 0TR198009BA 0TR534309AA 0TR198009BA 0TR421009CB 0TR534309AA 0TR102009AB 0TR102009AB 0TR534309AA 0TR102009AB 0TR534309AA KTC3197,TP(KTC388A) 2SA1980Y TP AUK 2SC5343Y TP AUK 2SA1980Y TP AUK 2SA1980Y TP AUK 2SC5343Y TP AUK 2SC5343Y TP AUK 2SA1980Y TP AUK 2SA1980Y TP AUK 2SC5343Y TP AUK 2SA1980Y TP AUK KTA1274-Y TO-92L TP KEC KTD2059-Y TO-220IS KEC 2SD2689LS KTC4370A-Y TO-220IS KEC 2SA1980Y TP AUK 2SA1980Y TP AUK 2SA1980Y TP AUK 2SA1980Y TP AUK 2SC5343Y TP AUK 2SC5343Y TP AUK 2SA1980Y TP AUK 2SC5343Y TP AUK 2SA1980Y TP AUK BF421L(AMMO)TO-92 2SC5343Y TP AUK KRC102M(KRC1202) KRC102M(KRC1202) 2SC5343Y TP AUK KTA1274-Y TO-92L TP KEC KRC102M(KRC1202) 2SC5343Y TP AUK

CAPACITOR

C10 C101 C104 C106 0CX2200K409 0CN1030F679 0CN1030F679 0CN1030F679 22P 50V J SL TA52 0.0027UF D 100V 5% PE TP5 10000P 16V M Y TA52 10000P 16V M Y TA52

- 22 -

For Capacitor & Resistors, the charactors at 2nd and 3rd digit in the P/No. means as follows;
CC, CX, CK, CN : Ceramic CQ : Polyestor CE : Electrolytic
RD : Carbon Film RS : Metal Oxide Film RN : Metal Film RF : Fusible
LOCA. NO C107 C108 C109 C11 C110 C111 C12 C126 C13 C17 C18 C180 C181 C183 C184 C185 C19 C21 C216 C217 C23 C24 C25 C252 C255 C256 C303 C304 C306 C308 C309 C310 C402 C403 C404 C405 C406 C407 C408 C409 C410 C411 C413 C414 C415 C416 C417 C419 C420 C421 C422 C501 C502 C503 C504 C505
PART NO 0CN1030F679 0CN1030F679 0CX2200K409 0CN1030F679 0CN1020K519 0CN2210K519 0CN3310K519 0CN2210K519 0CN2210K519 0CQ1041N409 0CN4710K519 0CK2710W515 0CK2710W515 0CK2710W515 0CN2710K519 0CN2710K519 0CN2710K519 0CN2210K519 0CK10201515 0CK10201515 181-033J 0CK4710W515 0CK8210K515 0CK1040K945 0CK4710W515 0CN1510K519 0CN1030F679 0CN1510K519 0CK1010W515 0CK2220W515 0CE227DD618 0CE107DD618 0CE105DK618 0CE107DD618 0CE105DK618 0CE107DJ618 0CE476DK618 0CE107DJ618 0CE108DH618 0CE108DH618 0CE107DD618 0CE107DD618 0CE107DD618 0CE107DD618 0CE107DD618 0CE107DD618 0CE107DD618 0CE107DD618 0CE107DD618 0CE107DD618 0CE107DH618 0CE108DH618 0CE476DF618 0CE106DF618 0CE106DF618 0CE106DK618