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COLOR TV SERVICE MANUAL

CHASSIS : MC-019A
MODEL : CF-14/20F60K CF/CT-14/21K40KEX MODEL : CF/CT-14/20J50K CF-20F80K/KX MODEL : CF/CT-14/20/21K50KE/51KE/53KE MODEL : CF/CT-14S10KE/20S11KE//20D70K

CAUTION

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

P/NO : 3828VD0104M

Nov.,2003 Printed in Korea

CONTENTS

Contents..... 2 Safety Precautions....3 Servicing Precautions... 4 Specifications.... 6 Description of Controls.... 7 Disassembly Instructions....10 Adjustment...11 Purity & Convergence Adjustment...14 Block Diagram....17 Exploded View... 18 Exploded View Parts List...19 Replacement Parts List... 32 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 lsolation 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 circuitary 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 positioin, 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 esposed 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 sepcified, 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.

c. Qulckly move the soldering iron tip to the junction of the component lead and the printed circuit foil, and hold it there only until the solder flows onto and around both the component lead and the foil. CAUTION: Work quickly to avoid overheating the circuit board printed foil. d. Closely inspect the solder area and remove any excess or splashed solder with a small wire-bristle brush. IC Remove/Replacement Some chassis circuit boards have slotted holes (oblong) through which the IC leads are inserted and then bent flat against the circuit foil. When holes are the slotted type, the following technique should be used to remove and replace the IC. When working with boards using the familiar round hole, use the standard technique as outlined in parapraphs 5 and 6 above. Remov 1. Desolder and straighten each IC lead in one operation by gently prying up on the lead with the soldering iron tip as the solder melts. 2. Draw away the melted solder with an anti-static suctiontype solder removal device (or with solder braid) before removing the IC. Replacemen 1. Carefully insert the replacement IC in the circuit boare. 2. Carefully bend each IC lead against the circuit foil pad and solder it. 3. Clean the soldered areas with a small wire-bristle brush. (It is not necessary to reapply acrylic coating to the areas). "Small-Signal" Discrete Transistor Removal/Replacement 1. Remove the defective transistor by clipping its leads as close as possible to the component body. 2. Bend into a "U" shape the end of each of three leads remaining on the circuit board. 3. Bend into a "U" shape the replacement transistor leads. 4. Connect the replacement transistor leads to the corresponding leads extending from the circuit board and crimp the "U" with long nose pliers to insure metal to metal contact then solder each connection. Power Output, Transistor Device Removal/Replacement 1. Heat and remove all solder from around the transistor leads. 2. Remove the heatsink mounting screw (if so equipped). 3. Carefully remove the transistor from the heat sink of the circuit board. 4. Insert new transistor in the circuit board. 5. Solder each transistor lead, and clip off excess lead. 6. Replace heatsink. Diode Removal/Replacement 1. Remove defective diode by clipping its leads as close as possible to diode body. 2. Bend the two remaining leads perpendicula y to the circuit board. 3. Observing diode polarity, wrap each lead of the new diode around the corresponding lead on the circuit board. 4. Securely crimp each connection and solder it. 5. Inspect (on the circuit board copper side) the solder joints of the two "original" leads. If they are not shiny, reheat them and if necessary, apply additional solder.

SOUND IF :

33.4MHz (B/G) 32.9MHz (I/I) 32.4MHz (D/K) 34.4MHz (M)
Power requirement : 110~240V, 50/60Hz Power consumption : 95 STAND-BY : 3W
Tuning range Band VHF-Low VHF-High Hyper UHF Ch21-69 Ch14-69 For TV B/G Ch2-4 Ch5-12 D/K Ch1-5 Ch6-12 Ch4-13 Ch2-13 I/I NTSC S1'-S3', S1 S2-S10, S11-S20 S21-S41 For CATV
Tuning system : FVS 100 Programme memory 200 Programme memory(W/O TXT) Antenna input impedance : VHF/UHF 75 ohm, unbalanced OSD (On Screen Display) : EASY-MENU Voice coil impedance : 8 ohm Sound output : 7W2(MAX) Dual/Stereo : A2/NICAM(Option) External connection : Head Phone Jack A/V in : 2 PERI Connector(Full Scart) : 1 DVD in
Feature : Auto programme/Manual programme CSM (Color Status Memory) Auto Sleep Turbo Picture & Sound Programme Editing PSM (Picture Status Memory) Teletext (TOP/FLOF/LIST) ACMS Auto Volume Level Game SSM(Sound Status Memory) Favorite Program
External In/Output Audio-In:0.5Vrms!3dB,over 10Kohm Audio-Out:0.5Vrms!3dBb,below 1Kohm Video-In/Out:1Vp-p!3dB,75ohm DVD In Y: 1Vp-p!3dB Pb,Pr : 0.7Vp-p!3dB

DECRIPTIONS 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 batteries. See the next page.

POWER MUTE

1. POWER switches the set on from standby or off to standby. 10 2. NUMBER BUTTONS switches the set on from standby or directly select a number. 3. MENU (or INDEX) selects a menu. selects an index page in the teletext mode (only TELETEXT models). 4. EYE/ (option) switches the eye function on or off.

MENU/INDEX

PR ( ) VOL

PR ( )

Q.VIEW
TEXT/MIX SIZE TIME SSM/ HOLD REVEAL SLEEP

UPDATE PSM

( ) / ( ) (Programme Up/Down) selects a programme or a menu item. switches the set on from standby. scans programmes automatically. F / G (Volume Up/Down) adjusts the volume. adjusts menu settings. OK accepts your selection or displays the current mode.

PICTURE SOUND

14 6. Q.VIEW 15 returns to the previously viewed programme. selects a favorite programme. 16 7. TELETEXT BUTTONS (option) These buttons are used for teletext. For further details, see the Teletext section. 8. PSM (Picture Status Memory) recalls your preferred picture setting. 9. TURBO PICTURE / SOUND BUTTON (option) selects Turbo picture and sound.

TURBO/

(With TELETEXT)
10. MUTE switches the sound on or off. 11. TV/AV selects TV or AV mode. clears the menu from the screen. switches the set on from standby. 12. I/II/ (option) selects the language during dual language broadcast. (option) selects the sound output.
13. LIST displays the programme table. 14. SLEEP sets the sleep timer. 15. SSM/ (option) (Sound Status Memory) recalls your preferred sound setting.
16. SURROUND (/ ) (option) selects surround sound.
COLOURED BUTTONS : These buttons are used for teletext (only 5 TELETEXT models) or programme edit.

Battery installation

The remote control handset is powered by two AAA type batteries. To load the batteries, turn the remote control handset over and open the battery compartment. Install two batteries as indicated by the polarity symbols ( + and - ) marked inside the compartment.
Note : To avoid damage from possible battery leakage, remove the batteries if you do not plan to use the remote control handset for an extended period of time.

(Without TELETEXT)

Front panel
Shown is a simplified representation of front or side panel. Here shown may be somewhat different from your set.
VIDEO VIDEO MENU OK F VOL G

(L) I AUDIO I (R)

ON/OFF
PR D VIDEO (L)-AUDIO-(R) !

P-TURBO-S

MENU OK F VOL G

PR D VIDEO AUDIO !

TURBO SOUND PICTURE

VIDEO (L) I AUDIO I (R)

PR D VOL PR E

(Side panel)

1. MAIN POWER (ON/OFF) 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. blinks when signal is input from the remote control. 3. REMOTE CONTROL SENSOR 4. MENU selects a menu. 5. OK accepts your selection or displays the current mode. F / G (Volume Up/Down) adjusts the volume. adjusts menu settings. D / E (Programme Up/Down) selects a programme or a menu item. switches the set on from standby. 6. AUDIO/VIDEO IN SOCKETS (AV) (option) Connect the audio/video out sockets of external equipment to these sockets. Note :If both the input jacks on the front/side panel and back panel have been connected to external equipments simultaneously, only the input jacks on the front/side panel can be received. 7. HEADPHONE SOCKET (option) Connect the headphone plug to this socket. 8. TURBO SOUND/PICTURE (option) switches Turbo sound or Turbo picture on or off. 9. EYE (option) adjusts picture according to the surrounding conditions.

DISASSEMBLY INSTRUCTIONS

Important note
This set is disconnected from the power supply through the converter transformer. An isolating transformer is necessary for service operations on the primary side of the converter transformer.

Chassis Assy Removal

Grasp both side of Frame and pull it backward smoothly.

Back Cabinet Removal

Remove the screws residing on the back cabinet and carefully separate the back cabinet from the front cabinet. (Fig. 2-1).

CPT Removal

1. Pull out the CPT board from the CPT neck. 2. Place the front cabinet on soft material not to mar the front surface or damage control knobs. 3. Remove 5 screws securing the picture tube mounting brackets to the front cabinet. 4. Carefully separate CPT from the front cabinet.
PICTURE TUBE HANDLING CAUTION
Due to high vacuum and large surface area of picture tube, great care must be exercised when handling picture tube. Always lift picture tube by grasping it firmly around faceplate. NEVER LIFT TUBE BY ITS NECK! The picture tube must not be scratched or subjected to excessive pressure as fracture of glass may result in an implosion of considerable violence which can cause personal injury or property damage.

CPT board Remove Screws

Main PCB

Fig. 2-1

Fig. 2-2

- 10 -

ADJUSTMENT

Safety Precautions

1. It is safe to adjust after using insulating transformer between the power supply line and chassis input to prevent the risk of electric shock and protect the instrument. 2. Never disconnect leads while the TV receiver is on. 3. Don't short any portion of circuits while power is on. 4. The adjustment must be done by the correct appliances. But this is changeable in view of productivity. 5. Unless otherwise noted, set the line voltage to 110~240Vac !10%, 50/60Hz. 6. The adjustment of TV should be performed afther warming up for 20 minutes.

Option TBS EYE

Code 0
Function W/O TBS WITH TBS W/O EYE WITH EYE W/O 4 KEY WITH 4 KEY

Remark

4 KEY MONO

FORCED MONO

Table 2. OPTION 2 Function
Option BCF Code 0 GAME 200 PRO CHA + AU DUAL ACMS T-SCH CURVE 1 Function Auto Abnormal ON Not Used W/O GAME PACK WITH GAME PACK 100 PRO 200 PRO Except China,Austrailia China,Austrailia W/O DUAL WITH DUAL Austrailia Except Austrailia W/O TURBO SEARCH WITH TURBO SEARCH W/O TURBO P/S WITH TURBO P/S NORMAL VOLUME CURVE M-A,India VOLUME CURVE Remark

Test Equipment required

1. Multimeter (volt meter) 2. Oscilloscope 3. 10:1 PROBE 4. Color Analyzer
CDL Data Adjustment(LINE SVC-0)
1) Press the SVC button to get into the SVC-0 Mode. 2) Press the Channel UP/DOWN button to select CDL12. 3) Press the Volume UP/DOWN button until the CDL data is the same as the Table below. 21 FCD CDL Data Remark 12 FLAT 14,16 CPT CPT 10 FLAT 20,21 CPT 12
4) Press the OK(V) button to memorize the data.
OPTION Data Adjustment(OPTION-1,OPTION-2)
1) Press OK buttons on both TV set and Remote Controller at the same time to get into SVC mode. 2) Press the Yellow button several times to find OPTION-1 or OPTION-2. 3) Input the correspond OPTION data referring to Table below with the numeric buttons. 4) Press the OK(V) button to memorize the data. T-P/S
Table 3. OPTION 3 Function
Option Code Function *** *** W/O HOTEL W/HOTEL BG/L BG/I/DK BG/I/DK/M BG/I/DK DUAL BG/I/DK/M DUAL 2nd IF BG 2nd IF I 2nd IF DK Remark
Table 1. OPTION 1 Function
Option C MUTE DVD 2 IN 1 Code 0 SCART 1 Function ACTIVE NOT ACTIVE W/O DVD DVD(REAR JACK) W/O 2 IN 1TUNER WITH 2 IN 1TUNER FLOF TXT TOP TXT PHONO JACK SCART JACK Remark

RESER VED HOTEL

SYSTEM

- 11 -

Option Code 0 OSD-L (EU) 1 2
Function ENG. ONLY EU-7EA EU ALL
Remark English English,Deutsch,Francais,Italiano,Espanol English,Nederlands,Svenska,Dansk,Suomi,Por tugues,Romaneste,Polski,Cesky,Pyccknn

FOCUS Adjustment

Test Point Adjust : RK (Red Cathode of CPT Board) : Screen Volume of FBT
OSD-L (MASIA) 3 OSD-L (E-ASIA) OSD-L (CH+HI) TXT-L (EU) 3 TXT-L (E-ASIA) TXT-L (ARAB) TXT-L (FARSI) 0
EU EAST ENG. ONLY ARABIC PARSI ARAB,FARSI,URDE ENG.ONLY ASIA-ALL ENG.ONLY E+CHINA E+HINDI W-EU E-EU CYRILLIC UKRAINIAN WEST-EU
English,Romaneste,Polski,Cesky,Pyccknn,Magyar English English,Arab,,Urdu,French English,Parsi,Urdu,French English,French,Arab,Urdu,Parsi English English,Malay,Vietnam,Indonesian,Thai English English,Chinese English,Hindi
1) Tune the TV set to receive a PAL 05CH. 2) Adjust the Focus Volume of FBT for best focus.
Screen Voltage Adjustment

2. Deflection Initial Setup Data
Status VL VA VS HS SC Default 25 21" FLAT S/S 25 21" FLAT LG 25
3. Deflection Adjustment Procedure
VL (Vertical Linearity) Adjust so that the boundary line between upper and lower half is in accord with geometric horizontal center of the CPT. VA (Vertical Amplitude) Adjust so that the circle of a digital circle pattern may be located within the effective screen of the CPT. SC (Vertical S Correction) Adjust so that all distance between each horizontal lines are to be the same. VS (Vertical Shift) Adjust so that the horizontal center line of a digital circle pattern is in accord with geometric horizontal center of the CPT.
HS (Horizontal Shift) Adjust so that the vertical center line of a digital circle pattern is in accord with geometric vertical center of the CPT. Press the OK(V) button to memorize the data.

- 13 -

PURITY & CONVERGENCE ADJUSTMENT

Caution:

Convergence and Purity have been factory aligned. Do not attempt to tamper with these alignments. However, the effects of adjacent receiver components, or replacement of picture tube or deflection yoke may require the need to readjust purity any convergence. 5. Reconnect the internal degaussing coil. 6. Position the beam bender locking rings at the 9 o'clock position and the other three pairs of tabs (2,4 and 6 pole magnets) at the 12 o'clock position.
DEFLECTION YOKE PURITY &CONVERGENCE MAGNET ASSEMBLY

6-POLE MAGNETS MAGNES

6-POLE

PURITY MAGNET(2-POLE)

,, ,,,, ,,,, , ,,,, ,,,, ,,,,

, ,,,,

RUBBER WEDGES

Purity Adjustment

This procedure DOES NOT apply to bonded yoke and picture tube assemblies. The instrument should be at room temperature (60 degrees F or above) for six (6) hours and be operating at low beam current (dark background) for approximately 20 to 30 minutes before performing purity adjustments.
CAUTION: Do not remove any trim magnets that may be attached to the bell of the picture tube.
1. Remove the AC power and disconnect the internal degaussing coil. 2. Remove the yoke from the neck of the picture tube. 3. If the yoke has the tape version beam bender, remove it and replace it with a adjustable type beam bender (follow the instructions provided with the new beam bender) 4. Replace the yoke on the picture tube neck, temporarily remove the three (3) rubber wedges from the bell of the picture tube and then slide the yoke completely forward.
,, , ,,,, , ,,,, , ,,,, , ,,,, , , ,,,, , ,,,, , ,,,, , ,,,,
4-POLE X-AXIS YOKE MAGNET POSITIONING (L/R PURITY)

PURITY MAGNET 4-POLE

GLASS CLOTH TAPE
CONVERGENCEMAGNET ASSEMBLY MAGNET ASSEMBLY CONVERGENCE
7. Perform the following steps, in the order given, to prepare the receiver for the purity adjustment procedure. a. Face the receiver in the "magnetic north" direction. b. Externally degauss the receiver screen with the television power turned off. c. Turn the television on for approximately 10 seconds to perform internal degaussing and then turn the TV off. d. Unplug the internal degaussing coil. This allows the thermistor to cool down while you are performing the purity adjustment. DO NOT MOVE THE RECEIVER FROM ITS "MAGNETIC NORTH" POSITION. e. Turn the receiver on and obtain a red raster by increasing the red bias control (CW) and decreasing the bias controls for the remaining two colors (CCW). f. Attach two round magnets on the picture tube screen at 3 o'clock and 9 o'clock positions, approximately one (1) inch from the edge of the mask (use double-sided tape).

- 14 -

1.ADJUST YOKE Z-AXIS FIRST TO GET EQUAL BLUE COLOR CIRCLES
2.ADJUST BEAM BENDER 2 POLE MAGNET TO GET FOUR EQUAL COLOR CIRCLES

MAGNETS

8. Referring to above, perform the following two steps: a. Adjust the yoke Z-axis to obtain equal blue circles. b. Adjust the appropriate beam bender tabs to obtain correct purity (four equal circles). 9. After correct purity is set, tighten the yoke clamp screw and remove the two screen magnets. 10. Remove the AC power and rotate the receiver 180 degrees (facing "magnetic south"). 11. Reconnect the internal degaussing coil. 12. Turn the receiver on for 10 seconds (make sure the receiver came on) to perform internal degaussing, and then turn the receiver off. 13. Unplug the internal degaussing coil. 14. Turn on the receiver and check the purity by holding one (1) round magnet at the 3 o'clock and a second round magnet at 9 o'clock position. If purity is not satisfactory, repeat steps 8 through 14. 15. Turn off the receiver and reconnect the internal degaussing coil.
6. Reconnect the internal degaussing coil and apply AC power. 7. Turn the receiver on for 10 seconds to perform internal degaussing and then turn the receiver off again. 8. Unplug the internal degaussing-coil. 9. Turn on the receiver, connect a signal generator to the VHF antenna terminal and apply a crosshatch signal.
Caution: During the convergence adjustment procedure, be very careful not to disturb the purity adjustment tabs are accidentally move, purity should be confirmed before proceeding with the convergence adjustments. Note: Make sure the focus is set correctly on this instrument before proceeding with the following adjustment.
10. Converge the red and blue vertical lines to the green vertical line at the center of the screen by performing the following steps (below TABLE). a. Carefully rotate both tabs of the 4-pole ring magnet simultaneously in opposite directions from the 12 o'clock position to converge the red and blue vertical lines. b. Carefully rotate both tabs of the 6-pole ring magnet simultaneously in opposite directions form the 12 o'clock position to converge the red and blue (now purple) vertical lines with the green vertical line. 11. Converge the red and blue horizontal with the green line at the center of the screen by performing the following steps. (below TABLE) a. Carefully rotate both tabs of the 4-pole ring magnet simultaneously in the same direction (keep the spacing between the two tabs the same) to converge the red and blue horizontal lines. b. Carefully rotate both tabs of the 6-pole ring magnet simultaneously in same direction (keep the spacing between the two tabs the same) to converge the red and blue (now purple) horizontal lines with the green horizontal line. c. Secure the tabs previsouly adjusted by locking them in place with the locking tabs on the beam bender.

Convergence Adjustment

Caution: This procedure DOES NOT apply to bonded yoke and picture tube assemblies. Do not use screen magnets during this adjustment procedure. Use of screen magnets will cause an incorrect display.
1. Remove AC power and disconnect the internal degaussing coil. 2. Apply AC Power and set the brightness to the Picture Reset condition. Set the Color control to minimum. 3. Make a horizontal line. 4. Adjust the Red, Green and Blue Bias controls to get a dim white line. 5. Restore the screen by removing the horizontal line.

- 15 -

RING PAIRS
ROTATION DIRECTION OF BOTH TABS
MOVEMENT OF RED AND BLUE BEAMS
B OPPOSITE 4 POLE SAME B R OR
B OPPOSITE R 6 POLE SAME B R OR OR
UP/DOWN ROCKING OF THE YOKE UP/DOWN ROCKING OF THE YOKE CAUSES OPPOSITE ROTATION OF RED CAUSES RASTERS AND BLUE OPPOSITE ROTATION OF RED

AND BLUE RASTERS

LEFT/RIGHT ROCKING OF THE YOKE LEET/RIGHT ROCKING OF THE OF THE CAUSES OPPOSITE SIZE CHANGE YOKE CAUSES OPPOSITE SIZE RED AND BLUE RASTERS CHANGE OF

THE RED AND BLUE RASTERS

ADJUSTMENT VIEWING AREA

RED RED

RED BLUE

BLUE RED

BLUE TV SCREEN
12. While watching the 6 o'clock positions on the screen, rock the front of the yoke in a vertical (up/down) direction to converge the red and blue vertical lines. (Fig upper left) 13. Temporarily place a rubber wedge at the 12 o'clock position to hold the vertical position or the yoke. 14. Check the 3 o'clock and 9 o'clock areas to confirm that the red and blue horizontal lines are converged. If the lines are not converged, slightly offset the vertical tilt of the yoke (move the rubber wedge if necessary) to equally balance the convergence error of the horizontal lines at 3 o'clock and 9 o'clock and the vertical lines at 6 o'clock and 12 o'clock. 15. Place a 1.5 inch piece of glass tape over the rubber foot at the rear of the 12 o'clock wedge. 16. While watching the 6 o'clock and 12 o'clock areas of the screen, rock the front of the yoke in the horizontal (left to right) motion to converge the red and blue horizontal lines. (Fig. upper right)
17. Temporarily place a rubber wedge at the 5 o'clock and 7 o'clock positions to hold the horizontal position of the yoke. 18. Check the 3 o'clock and 9 o'clock areas to confirm that the red and blue vertical lines are converged. If the lines are not converged, slightly offset the horizontal tilt of the yoke (move the temporary rubber wedges if necessary) to equally balance the convergence error of the horizontal lines at 6 o'clock and 12 o'clock and the vertical lines at 3 o'clock and 9 o'clock. 19. Using a round magnet confirm purity at the center, right and left sides and corners. See Purity Adjustment Procedure. 20. Reconfirm convergence and apply a 1.5 inch piece of glass tape over the rubber foot at the rear of the 5 o'clock and the 7 o'clock wedges.

EXPLODED VIEW : 14/20J50K

943 400

- 28 -
2055-00744N 2055-00744L 2055-00744M
343-B52A 2426GCA40CP 2426VDC0003 2426GCA40CP 120-C93G 150-D02Y 6150Z-1014A 170-A01D 6410VEH001B 3091V00264N 5020V00389A 320-062H 5020V00388A 3809V00192H 3809V00192F 6871VMMA42B 6871VMMA31H 6871VMMA39B 332-057B 1PTF0403116
SUPPORTER,PWB CPT SET CPT SET CPT SET CPT SET SPEAKER COIL,DEGAUSSING DY CPT EARTH POWER CORD CABINET ASSY BUTTON,CONTROL SPRING,COIL BUTTON,POWER BACK COVER ASSEMBLY BACK COVER ASSEMBLY(SCART) PWB ASSEMBLY,MAIN PWB ASSEMBLY,MAIN ABANS PWB ASSEMBLY,MAIN SCART SCREW ASSY,HEXAGON HEAD SCREW,TAP TITE(P) D4.0 L16.0
6400VA0018D 150-D02W 153-113V 170-A01A 6410VEH001C 3091V00259T 5020V00397A 320-062H 5020V00398A 3809V00191J 3809V00191E

6871VMMA42A 6871VMMA42P

- 29 -
EXPLODED VIEW : 14/20/21K51/53KE

120 104

- 30 -

LOCA. NO PART NO 21

@@@@@@@@@ 1V??@&OY7 L3??@J?5J ?1N?@?H7? ?L3?@?5 ??1V@Y7J? ??L@@@J ?e1R7? ?eX-W? ? ?
2055-00744L 2055-00744K 2055-00744M
343-B52A 2426GCA40CP 6400VA0001A 150-D02Y
343-B52A 2426VSD0018 6400VA0001A 150-D02X
SUPPORTER,PCB CPT SET CPT SET CPT SET SPEAKER COIL,DEGAUSSING COIL,DEGAUSSING,CU 14 42T 5.7 OHM
@V??@&OY7 1@@@@@@@@ L3??@J?5J ?1N?@?H7? ?L3?@?5 ??1V@Y7J? ??L@@@J ?e1R7? ?eX-W? ? ?
6400VA0019D 150-D02W 150-D02B

153 170

153-113V 170-A01A 170-A01E

6150Z-1014A 170-A01F

153-110F 170-A01D
DY LEAD SET,CPT EARTH CPT EARTH, 14(LGEMX LOCAL ONLY)

6410VEH001B 6410VEH004A

6410VEH001B
POWER CORD, VDE/SEMKO 2410M POWER CORD, HIT101 HARNESSINDO VDE/SEMKO 2030MM
3091V00266L 3091V00266N 3091V00266V

3106V00077Z -

3091V00375G -
CABINET UNIT CABINET UNIT (W/O EYE) CABINET, CT-14K50KE.LMLLNA8 MONO MC019A LGEIN LOCAL

5020V00189B 5020V00189C

5020V00158A
BUTTON,CONTROL BUTTON, CONTROL CF-14K50KE.KFPLRW8 ABS, HF-380 6KEY
320-062H 5020V00188B 3809V00091E 3809V00091Q 3809V00091S
320-062E 5020V00161A 3809V00069Q 3809V00069F
320-062E 5020V00157C 3809V00069Q
SPRING,KNOB BUTTON,POWER BACK COVER ASSY(SCART,40AF) BACK COVER ASSY(JACK BACK COVER ASSY, CF-14K50K.LFLLNK8 1PHONE IN LOCAL

D824 D901 D902 D903 D904 DB801 LD01 ZD01 ZD101 ZD441 ZD442 ZD443 ZD501 ZD601 ZD901

TRANSISTOR

Q01 Q102 Q103 Q301 0TR198009BA 0TR319709AB 0TR102009AB 0TR198009BA 0TR570200AA 0TR233109AA 0TR198009BA 0TR198009BA 0TR198009BA 0TR534309AA 0TR534309AA 0TR198009BA 0TR534309AA 0TR534309AA 0TR198009BA 0TR102009AB 0TR102009AB 0TR102009AB TR,2SA1980Y TP AUK - TR,KTC3197,TP(KTC388A),KEC TR,KRC102M TR,2SA1980Y TP AUK - TR,KSD5702 BK SAMSUNG TO3PF H-OUT TR,KSC2331-Y TP SAMSUNG TO-92L TR,2SA1980Y TP AUK - TR,2SA1980Y TP AUK - TR,2SA1980Y TP AUK - TR,2SC5343Y TP AUK - TR,2SC5343Y TP AUK - TR,2SA1980Y TP AUK - TR,2SC5343Y TP AUK - TR,2SC5343Y TP AUK - TR,2SA1980Y TP AUK - TR,KRC102M,TP(KRC1202),KEC TR,KRC102M,TP(KRC1202),KEC TR,KRC102M,TP(KRC1202),KEC
D101 D102 D301 D401 D441 D442 D443 D501 D571 D802 D803 D804 D805 D806 D807 D808 D814 0DS141489AB 0DD414809ED 0DSVH00019A 0DR140059AC 0DD400509AA 0DR150009EA 0DD150009CA 0DR060009AA 0DD060009AC 0DR060009AA 0DD060009AC 0DR060009AA 0DD060009AC 0DS141489AB 0DD414809ED 0DS141489AB 0DD414809ED 0DR100009FA 0DD100009AM 0DS141489AB 0DD414809ED 0DD360009AA 0DR200009DA 0DD200009AH 0DR100009FA 0DD100009AM 0DD300009AC 0DR060009AA 0DD060009AC 0DD420000BB DIODE,SWITCHING 1N4148 TP DIODE,1N4148 DIODE,SWITCHING BA282 DIODE,RECTIFIER 1N4005GP DIODE,RECTIFIER 1N4005 DIODE,RECTIFIER RGP15J DIODE,RECTIFIER RGP15J DIODE,RECTIFIER TVR06J DIODE,RECTIFIER TVR06J DIODE,RECTIFIER TVR06J DIODE,RECTIFIER TVR06J DIODE,RECTIFIER TVR06J DIODE,RECTIFIER TVR06J DIODE,SWITCHING 1N4148 DIODE,1N4148 DIODE,SWITCHING 1N4148 DIODE,1N4148 DIODE,RECTIFIER EU1DGR DIODE,RECTIFIER EU1ZV DIODE,SWITCHING 1N4148 DIODE,1N4148 DIODE,RECTIFIER BYW36 TP(2A/600V) DIODE,RECTIFIER RU2JGF DIODE,RECTIFIER RU2AMV DIODE,RECTIFIER EU1DGR DIODE,RECTIFIER EU1ZV DIODE,RECTIFIER RU3AMV DIODE,RECTIFIER TVR06J DIODE,RECTIFIER TVR06J DIODE,D4L20U SHINDENGEN
Q402 Q442 Q551 Q552 Q553 Q554 Q555 Q571 Q621 Q651 Q653 Q801 Q802 Q806

CAPACITOR

C01 C02 C03 C04 C05 C07 C21 C51 C101 C102 C107 C109 C110 C111 0CN1020K519 0CN1030F679 0CE107DD618 0CC2200K415 0CC2200K415 0CE107DD618 0CE107DD618 0CN1030F679 0CN1030F679 0CE106DF618 0CE107DD618 0CE476DK618 0CN1030F679 0CN1030F679 1000P 50V K B TA52 10000P 16V M Y TA52 100UF STD 10V M FL TP5 22P 50V J NPO TS 22P 50V J NPO TS 100UF STD 10V M FL TP5 100UF STD 10V M FL TP5 10000P 16V M Y TA52 10000P 16V M Y TA52 10UF STD 16V M FL TP5 100UF STD 10V M FL TP5 47UF STD 50V M FL TP5 10000P 16V M Y TA52 10000P 16V M Y TA52

0V Check /replace DB801

Check/Replace FR803,D804

Check / Replace IC651

Check/Replace IC01

Check/Replace IC602

Check/Replace Q621,IC603
RF STEREO Select correct system in menu OK Check the waveform at pin 16 of TU101 NO Check / Replace TU101
Check /replace IC801,IC803,IC804
OK Check the waveform at pin 1,2,14,15 of IC602 OK Check the voltage at pin 3,13 of IC602 NO Check/Replace F811,D824

NO RASTER / SOUND OK

Check the Heater voltage of CPT (6 ~ 6.5Vrms) OK Not OK
OK Check the waveform at pin 24,25 of IC661 OK Check the waveform at pin 4,12 of IC602 OK NO Check/Replace Q671,Q672 NO Check the voltage at pin 16,33,46 of IC661 NO Check the voltage at pin1 of IC131 NO Check/Replace IC131,IC661
Check HV, Screen voltage of CPT Not OK OK
Check Ik Current of IC01,pin50 Not OK OK
Check the Heater pulse of FBT T401 Not OK
Check the voltage at pin 6,7 of IC602 OK Check the waveform at pin 1,2,14,15 of IC602 OK Check the voltage at pin 3,13 of IC602
Check/Replace CPT Board Components Check FBT T401 Check IC01,ZD901 IC901,P902,P541

Check FR404,FR902,P302

Check FBT T401

Check/Replace F811,D824

SVC. SHEET : 3854V A0083A-S SVC. SHE