LG CF-1420F60K Service Manual Download Page 19 | Manualshive

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Summary of Contents for CF-1420F60K

Page 1: ...L CF CT CF CT 14S10KE 20S1 14S10KE 20S11KE 20D70K 1KE 20D70K website http biz LGservice com website http biz LGservice com e mail http www LGEservice com techsup html e mail http www LGEservice com techsup html Nov 2003 Nov 2003 Printed in Korea Printed in Korea P NO 3828VD0104M P NO 3828VD0104M CONTENTS CONTENTS Contents Contents 2 2 Safet Safety y Precaution Precautions s 3 3 Servicing Precaut S...

Page 2: ...Description of Contr Controls ols 7 7 Disassembly Disassembly Instructions Instructions 1 10 0 Adjustment Adjustment 11 11 Purity Purity Convergen Convergence ce Adjustment Adjustment 14 14 Block Block Diagram Diagram 17 17 Exploded View Exploded View 18 18 Exploded Exploded Vie View w Parts Parts List List 1 19 9 Replacement Parts List Replacement Parts List 32 32 SV SVC C Sheet Sheet ...

Page 3: ...Description of Contr Controls ols 7 7 Disassembly Disassembly Instructions Instructions 1 10 0 Adjustment Adjustment 11 11 Purity Purity Convergen Convergence ce Adjustment Adjustment 14 14 Block Block Diagram Diagram 17 17 Exploded View Exploded View 18 18 Exploded Exploded Vie View w Parts Parts List List 1 19 9 Replacement Parts List Replacement Parts List 32 32 SV SVC C Sheet Sheet ...

Page 4: ... metallic parts of the cabinet such as antennas terminals etc metallic parts of the cabinet such as antennas terminals etc to be sure the set is safe to operate without damage of to be sure the set is safe to operate without damage of electrical shock electrical shock Leakage Current Cold Check Antenna Cold Leakage Current Cold Check Antenna Cold Check Check With the instrument AC plug removed fro...

Page 5: ...s are integrated circuits and some fieldeffect transistors and semicounductor chip components The following techniques should be used to help reduce the incidence of component damage caused by static by static electricity 1 Immediately before handling any semiconductor component or semiconductor equipped assembly drain off any electostatic charge on your body by touching a known earth ground Alter...

Page 6: ...he 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 Fuse and Conventional Resistor Removal Replacement 1 Clip each fuse or resistor lead at top of the circuit board hollow stake 2 Securely crimp the l...

Page 7: ...SD On Screen Display EASY MENU O Voice coil impedance 8 ohm O Sound output 7W 2 MAX Dual Stereo A2 NICAM Option O External connection Head Phone Jack A V in 2 PERI Connector Full Scart 1 DVD in O 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 O Feature Auto programme Manual programme CSM Color...

Page 8: ...ts 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 6 Q VIEW returns to the previously viewed programme selects a favorite programme 7 TELETEXT BUTTONS option These buttons are used for teletext For further details see the ÔTeletextÕ section 8...

Page 9: ... used for teletext only 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 ...

Page 10: ... 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 simultane ously 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 switch...

Page 11: ...oval 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 separateCPT 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 hand...

Page 12: ...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 Table 1 OPTION 1 Function Table 2 OPTION 2 Function Table 3 OPTION 3 Function ADJUSTMENT 21Ó FCD 12 FLAT 14 16Ó CPT 8 15Ó CPT 10 FLAT 20 21Ó CPT 12 CDL Data Remark 0 1 0 1 0 1 0 1 0 1 SCART TO...

Page 13: ...Press Channel UP DOWN button for desirous function adjustment 5 Adjust VOL or VOL button in each status of RG BG for X 272 8 Y 288 8 with color analyzer Europe Model X 288 8 Y 295 X 272 8 11 000K 7 Press the OK V button to memorize the data Test Point AGC TP C101 Adjust Remote Controller Tuner P N Marker AGC Voltage 6700VPF009G LG Innotek W S TUNER 2 7 0 05V 6700VPF016A DAEWOO W S TUNER 2 7 0 05V ...

Page 14: ... 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 geom...

Page 15: ...mpletely forward 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 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 recei...

Page 16: ...e 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 instr...

Page 17: ... 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 equ...

Page 18: ...EXPLODED VIEW 14 20F60K 943 400 913 170 150 153 112 174 ...

Page 19: ... 18 EXPLODED VIEW 14 20F60K 310 104 300 330 320 120 943 400 913 170 150 153 112 174 520 ...

Page 20: ...ROL 320 320 062H 320 062H SPRING COIL 330 5020V00205A 5020V00175B BUTTON POWER 400 3809V00095N 3809V00079Y BACK COVER ASSY 400 3809V00095P 3809V00079Q BACK COVER ASSY SCART 520 6871VMMA42C 6871VMMA42D PWB ASSY MAIN 6871VMMA30C 6871VMMA39C PWB ASSY MAIN SCART 913 332 057A 332 057B SCREW ASSY HEXAGON HEAD 943 1PTF0403116 1PTF0403116 SCREW TAP TITE P D4 0 L16 0 EXPLODED VIEW PARTS LIST The components...

Page 21: ... 20 EXPLODED VIEW 14 20S10KE 11KE 121 913 112 153 170 150 400 943 104 300 700 350 354 310 320 330 120 174 520 ...

Page 22: ...V00186A BUTTON POWER 350 3750V00009G RACK BASE ASSY 354 4980V00035A SUPPORTER BASE 400 3809V00097H BACK COVER ASSY 3809V00097M 3809V00082F BACK COVER ASSY SCART 520 6871VMMA41H PWB ASSY MAIN 6871VMMA30Q PWB ASSY MAIN S10K 6871VMMA30R PWB ASSY MAIN S10KE 6871VMMA30Z PWB ASSY MAIN CT 14S10KE 6871VMMA41E 6871VMMA30B PWB ASSY MAIN SCART 700 0IGL120104A 0IGL120104A IC CDS SENSOR MODULE P1201 04 913 332...

Page 23: ... 22 EXPLODED VIEW 14 21K40KE KEX 943 400 913 170 150 153 112 174 520 310 120 330 320 700 300 N A T URAL ALGORITHM E XE ...

Page 24: ...OL 320 320 070G 320 062H SPRING COIL 330 5020V00202A 5020V00196B BUTTON POWER 400 3809V00093J BACK COVER ASSY 3809V00093E 3809V00240B BACK COVER ASSY SCART 520 6871VMMA30F PWB ASSY MAIN 6871VMMA31G PWB ASSY MAIN ABANS 6871VMMB18R 6871VMMB18R PWB ASSY MAIN TELESTAR 700 0IGL120104A 0IGL120104A IC CDS SENSOR MODULE P1201 04 913 332 057B 332 057B SCREW ASSY HEXAGON HEAD 943 1PTF0403116 1PTF0403116 SCR...

Page 25: ... 24 EXPLODED VIEW 20D70K 913 112 153 170 150 943 400 120 310 104 120 300 320 330 174 520 ...

Page 26: ...PLUB2 170 170 A01D LEAD SET CPT EARTH 19Ó 174 6410VEH001B POWER CORD VDE SEMKO 2410M 300 3091V00232A CABINET ASSY 310 441 714A BUTTON CONTROL 320 320 062E SPRING COIL 330 441 715A BUTTON POWER 400 303 M33S BACK COVER ASSY 40AF SCART 520 6871VMMA41C PWB ASSY MAIN 913 332 057B SCREW ASSY HEXAGON HEAD 943 1PTF0403116 SCREW TAP TITE P D4 0 L16 0 MSWR3 FZB The components identified by mark is critical ...

Page 27: ... 26 EXPLODED VIEW 20F80K 913 170 150 153 112 400 943 174 520 104 300 310 120 320 330 ...

Page 28: ... CPT EARTH 19Ó 174 6410VEH001B POWER CORD VDE SEMKO 2410M 174 009E POWER CORD 300 3106V00050W CABINET UNIT 310 5020V00179C BUTTON CONTROL 320 320 062E SPRING KNOB 330 5020V00180C BUTTON POWER 400 3809V00073D BACK COVER ASSY PHONE 3809V00073K BACK COVER ASSY SCART 520 6871VMMA41B PWB ASSY MAIN 6871VMMA27W PWB ASSY MAIN 20F80KX TELESTAR 6871VMMB18Q PWB ASSY MAIN 20F80K TELESTAR 913 332 057B SCREW AS...

Page 29: ... 28 EXPLODED VIEW 14 20J50K 913 112 153 170 150 943 400 310 330 320 120 174 520 104 ...

Page 30: ... BUTTON CONTROL 320 320 062H 320 062H SPRING COIL 330 5020V00398A 5020V00388A BUTTON POWER 400 3809V00191J 3809V00192H BACK COVER ASSEMBLY 3809V00191E 3809V00192F BACK COVER ASSEMBLY SCART 520 6871VMMA42A 6871VMMA42B PWB ASSEMBLY MAIN 6871VMMA31H PWB ASSEMBLY MAIN ABANS 6871VMMA42P 6871VMMA39B PWB ASSEMBLY MAIN SCART 913 332 057A 332 057B SCREW ASSY HEXAGON HEAD 943 1PTF0403116 1PTF0403116 SCREW T...

Page 31: ... 30 EXPLODED VIEW 14 20 21K51 53KE 310 320 120 400 943 104 330 300 913 112 153 170 150 174 520 ...

Page 32: ...20V00158A BUTTON CONTROL 5020V00189C BUTTON CONTROL CF 14K50KE KFPLRW8 ABS HF 380 6KEY 320 320 062H 320 062E 320 062E SPRING KNOB 330 5020V00188B 5020V00161A 5020V00157C BUTTON POWER 400 3809V00091E 3809V00069Q 3809V00069Q BACK COVER ASSY SCART 40AF 3809V00091Q 3809V00069F BACK COVER ASSY JACK 3809V00091S BACK COVER ASSY CF 14K50K LFLLNK8 1PHONE IN LOCAL 520 6871VMMA42J 6871VMMA42N 6871VMMA41D PWB...

Page 33: ...ZV DIODE RECTIFIER RU3AMV DIODE RECTIFIER TVR06J DIODE RECTIFIER TVR06J DIODE D4L20USHINDENGEN LOCA NO PART NO DESCRIPTION D815 D816 D824 D901 D902 D903 D904 DB801 LD01 ZD01 ZD101 ZD441 ZD442 ZD443 ZD501 ZD601 ZD901 Q01 Q102 Q103 Q301 Q402 Q442 Q551 Q552 Q553 Q554 Q555 Q571 Q621 Q651 Q653 Q801 Q802 Q806 C01 C02 C03 C04 C05 C07 C21 C51 C101 C102 C107 C109 C110 C111 0DD420000BB 0DR060009AA 0DD420000...

Page 34: ...2 C603 Ò C605 Ò C606 C607 C612 Ò C621 C622 C623 C624 C625 C626 C635 C631 C632 C633 C634 C635 Ò C636 C637 C638 C639 C640 C641 C642 C643 C644 C645 C646 C653 C655 C801 C802 Ò 0CE225DK618 0CN1030F679 181 007H 0CN2230H949 0CN2230H949 0CN2230H949 0CN8210K519 0CQ4721N509 0CX4700K409 0CE107DD618 0CE476DF618 0CQ1021N509 0CQ1041N509 0CE226DF618 181 007F 0CQ6821N509 0CQ4721N509 0CQ6821N509 0CQ4721N509 181 00...

Page 35: ...02 P802 P902 P903 C258 C259 C546 FR441 FR442 Ò 21Ó Ò 14Ó FR443 FR802 FR803 FR901 J30 J33 J39 J114 J149 J154 L01 L10 L251 L252 L631 R01 R03 R04 R05 0LA0102K119 0LA0102K119 0LA0102K119 0LA0681K119 0LA0102K049 150 C02F 0LA0101K119 0LA0681K119 0LA0681K119 0LA0681K119 6174Z 6040C 6174V 6008A 6170VC0003C 151 A13P 6170VMCB01L 366 921B 366 043K 366 921B 366 921C 366 043B 387 603E 366 009D 0RD4702F609 0RD4...

Page 36: ...R312 R313 R401 R402 R442 R444 R446 R447 Ò 21Ó Ò 14Ó R450 R451 Ò 14Ó R453 Ò 21Ó Ò 14Ó R455 R456 Ò 21Ó Ò 14Ó R501 R504 R505 R506 R518 R521 R522 R523 R524 R525 R526 R537 R538 R539 R540 R542 R544 R551 R552 R553 R554 R555 R556 R557 R558 R572 0RS2700K607 0RS2700K607 0RD1201F609 0RD1501F609 0RD1801F609 0RD4701H609 0RD2201F609 0RD1002F609 0RD1501H609 0RS2702K607 0RD5100H609 0RD0392H609 0RD1001F609 0RD3001...

Page 37: ...HM 1 6 W 5 00 TA52 220 OHM 1 6 W 5 00 TA52 220 OHM 1 6 W 5 00 TA52 100 OHM 1 6 W 5 00 TA52 100 OHM 1 6 W 5 00 TA52 100 OHM 1 6 W 5 00 TA52 1 5K OHM 1 2 W 5 00 TA52 1 5K OHM 1 2 W 5 00 TA52 LOCA NO PART NO DESCRIPTION R911 R912 RC801 SW01 SW02 SW03 SW04 SW05 SW06 SW801 FB801 FB802 FB803 L611 X01 T551 T552 T553 T801 Ò Z102 Z551 A1 A2 A2 A2 A3 PA01 PJ201 Ò PJ202 Ò SK901 Ò TH801 TU101 VD801 0RS1501H60...

Page 38: ...P NO 3854VA0083B S 2001 04 20 ...

Page 39: ...SVC SHEET 3854VA0083A S SVC SHE ...

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