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LG RE-21CC20MX, Service Manual

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LG RE-21CC20MX Service Manual Download Page 1

COLOR TV

SERVICE MANUAL

CAUTION

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

CHASSIS : MC-019A

MODEL : RE-21CC20MX/RX

website:http://biz.LGservice.com

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

Summary of Contents for RE-21CC20MX

Page 1: ...V SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS MC 019A MODEL RE 21CC20MX RX website http biz LGservice com e mail http www LGEservice com techsup html ...

Page 2: ... SAFETY PRECAUTIONS 3 SERVICING PRECAUTIONS 4 SPECIFICATIONS 6 DESCRIPTION OF CONTROLS 7 ADJUSTMENT 10 PURITY CONVERGENCE ADJUSTMENT 13 BLOCK DIAGRAM 16 EXPLODED VIEW 18 EXPLODED VIEW PARTS LIST 19 REPLACEMENT PARTS LIST 20 ...

Page 3: ...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 ...

Page 4: ... are integrated circuits and some fieldeffect transistors and semiconductor 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 electrostatic charge on your body by touching a known earth ground Altern...

Page 5: ... 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 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...

Page 6: ...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 7: ...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 Teletext section 8 P...

Page 8: ...isplays the programme table 14 SLEEP sets the sleep timer 15 SSM option Sound Status Memory recalls your preferred sound setting 16 SURROUND º º option selects surround sound No function COLOURED BUTTONS These buttons are used for teletext only TELETEXT models or programme edit Without TELETEXT POWER MUTE 1 2 3 4 5 6 7 8 9 MENU TV AV 0 EYE Q VIEW LIST I II PR PR OK VOL VOL PSM SSM SLEEP PICTURE SO...

Page 9: ...ack 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 6 7 VIDEO L I AUDIO I R VIDEO AUDIO 6 VIDEO L I AUDIO I R...

Page 10: ...o 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 21 FCD 12 FLAT 14 16 CPT 8 15 CPT 10 FLAT 20 21 CPT 12 CDL Data Remark 0 1 0 1 0 1 0 1 0 1 SCART TOP ...

Page 11: ... 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 12: ... 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 13: ...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 14: ...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 15: ... 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 16: ...7266 97 STEREO Sound Max SOUND AMP TDA7266 97 IC131 5V REG Option Part IIC Bus Line TDA9381 Non TXT Audio Mono TV OUT 28 33 21 22 38 Sound Trap Part Video OUT TV MNT OUT 50 42 51 53 STEREO B01K A13P MONO B01L 10 12 9 5 3 9 8 10 2 6 14V 1 ST BY TRANS 3W Opt SPK L OUT 24 25 47 44 AUDIO AM IN L L Only 30 39 31 40 28 30 14 39 8V From IC844 14 39 39 3 3V Reg 5V From IC842 3 3V 8V From IC844 IC844 8V RE...

Page 17: ... 17 MEMO ...

Page 18: ... 18 EXPLODED VIEW 300 330 310 120 600 320 520 913 170 150 153 112 943 400 P801 ...

Page 19: ...0V00875A BUTTON POWER RN 21CC20 ABS HF 380 1KEY 400 3809V00396K BACK COVER ASSEMBLY RE 21CC20MX 1SCART LGEIN LOCAL 400 3809V00396N BACK COVER ASSEMBLY RE 21CC20RX 1SCART LGEIN LOCAL 520 6871VMMS38Z PWB PCB ASSEMBLY MAIN 019A RE21CC20MX LULLNH8 IN LGEMK SCART 6871VMMS90B PWB PCB ASSEMBLY MAIN 019A RE21CC20RX LULLNH8 LGEIN8 SC 600 6871VSMK04D PWB PCB ASSEMBLY SUB A V MC019A CE CC20M LGEIN8 SIDE AV 2...

Page 20: ... STD 25V M FL TP5 0 0033UF D 100V 10 PE TP5 PP 200V 0 047UF K LOCA NO PART NO DESCRIPTION IC01 IC02 IC03 IC130 IC301 IC621 IC801 IC802 IC803 IC804 IC842 IC844 IC901 Q01 Q301 Q402 Q442 Q551 Q555 Q571 Q621 Q651 Q653 Q801 Q802 Q806 D301 D401 D441 D442 D443 D501 D571 D802 D803 D804 D805 D806 D807 D808 D901 D902 D903 0ICTMPH006C 0IMCRAU001A 0IAL241610B 0IMCRSG004A 0ISA784070A 0ISG200600A 0ILI817000G 0I...

Page 21: ...E FMTW LEAD 4 5 LOCA NO PART NO DESCRIPTION C812 C813 C815 C816 C817 C818 C819 C820 C821 C823 C825 C828 C829 C830 C831 C832 C834 C835 C841 C901 C902 C903 C904 C905 J136 J57 L04 L05 L1202 L1253 L1254 L203 L205 L251 L402 L501 L502 L503 L506 L801 R443 R545 R546 R547 T402 T802 C546 D813 0CE477DJ618 0CK4710W515 0CK4710W515 0CN1030F679 0CK4710W515 0CE227BH618 181 091Y 0CE227DP650 181 120N 0CK4710K515 18...

Page 22: ...A NO PART NO DESCRIPTION R307 R310 R311 R312 R313 R401 R402 R442 R444 R446 R447 R450 R451 R453 R455 R456 R501 R502 R504 R506 R51 R518 R52 R521 R522 R523 R524 R537 R538 R539 R540 R542 R544 R551 R552 R558 R559 R572 R573 R621 R622 R623 R624 R625 R626 R627 R628 R651 R652 R657 R660 R801 0RD1501F609 0RD1801F609 0RD4701A609 0RD2201F609 0RD1002F609 0RD1501A609 0RS2702K607 0RD5100H609 0RD0392H609 0RD1001F6...

Page 23: ... TA52 RWR 7W 1 0 OHM J PD TACT SKHV17910B LG C D NON 12V TACT SKHV17910B LG C D NON 12V TACT SKHV17910B LG C D NON 12V TACT SKHV17910B LG C D NON 12V TACT SKHV17910B LG C D NON 12V TACT SKHV17910B LG C D NON 12V SDKEA3 ALPS IEC 250V 8A BI3857 FEELUX 5 7X3 6MM AXIAL 26MM BI3857 FEELUX 5 7X3 6MM AXIAL 26MM BI3857 FEELUX 5 7X3 6MM AXIAL 26MM FERRITE BFD3565R2F TAPING BI3857 FEELUX 5 7X3 6MM AXIAL 26M...

Page 24: ......

Page 25: ...545 C3 C546 C3 C548 D4 C549 C4 C551 D4 C552 D4 C553 D3 C561 C4 C573 E5 C574 E5 C593 C3 C594 C4 C595 C1 C601 B3 C602 B2 C603 B2 C604 B3 C605 B2 C606 A2 C607 B3 C611 B3 C612 B3 C621 A2 C622 A3 C623 A3 C624 B2 C625 A2 C626 A2 C631 D1 C632 D2 C633 D1 C634 C1 C635 D1 C636 C1 C637 C1 C638 C1 C639 C2 C640 C2 C641 C2 C642 D2 C643 D2 C644 D1 C645 D2 C646 D1 C650 A3 C653 D2 C654 D3 C655 C1 C661 C3 C662 C3 C...

Page 26: ...Mar 2004 Printed in Korea P NO 3828VD0182F ...

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