LG 42LB1DRA Service Manual
LG 42LB1DRA - 42" LCD Integrated HDTV Manual
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UPC - 719192169753
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LG 42LB1DRA manual content summary:
- LG 42LB1DRA | Service Manual - Page 1
website:http://biz.LGservice.com e-mail:http://www.LGEservice.com/techsup.html LCD TV SERVICE MANUAL CHASSIS : LA61A MODEL : 42LB1DR-UA / 42LB1DRA-UA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. - LG 42LB1DRA | Service Manual - Page 2
CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 11 SVC REMOCON 17 VIDEO TROUBLE SHOOTING&BLOCK DIAGRAM 18 AUDIO TROUBLE SHOOTING&BLOCK DIAGRAM 41 EXPLODED VIEW 53 EXPLODED VIEW PARTS LIST 54 REPLACEMENT PARTS LIST 55 SVC. SHEET -2- - LG 42LB1DRA | Service Manual - Page 3
special safety parts should be replaced with the same components as recommended in this manual to prevent 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 - LG 42LB1DRA | Service Manual - Page 4
, always follow the safety precautions. Remember: Safety First. General Servicing Precautions 1. Always unplug the receiver AC power cord from the AC power source before; a. Removing or reinstalling any component, circuit board module or any other receiver assembly. b. Disconnecting or reconnecting - LG 42LB1DRA | Service Manual - Page 5
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 paragraphs 5 and 6 above - LG 42LB1DRA | Service Manual - Page 6
Specification(TV) No Item 1. Video input applicable system 2. Receivable Broadcasting System 3. RF Input Channel 4. Input Voltage 5. Market 6. Picture 10~90 % 3) Temp : -20 ~ 50 deg 4) Humidity : 10~90 % LCD Module Remark (ZE/TE) EU/Non-EU (PAL Market) 6),7) South America Market 7) Except South - LG 42LB1DRA | Service Manual - Page 7
No Item 1 Panel 2 Frequency range 3 Control Function 4 Component Jack D4 Jack(525i, 525p, 750p,1125i) 5 Power ON Stand by DPMS Mode Power off 6 LCD Module Specification Remark 42" TFT WXGA LCD H : 31 ~ 61Khz PC Input V : 56 ~ 75Hz 1) Contrast/Brightness 2) H-Position / V-Position - LG 42LB1DRA | Service Manual - Page 8
2. 640x480 3. 720x480 4. 720x576 5. 720x576 6. 1280x720 Specification H-freq(kHz) V-freq(Hz) 15.73 60 15.63 HDTV 576p TE, ME HDTV 720p TE, ME HDTV 720p TE, ME HDTV 1080i 50Hz (AU Ver.) TE, ME HDTV 1080i 60Hz (ATSC) TE, ME HDTV 1080i 59.94Hz TE, ME 5. RGB PC INPUT Mode Table Supported - LG 42LB1DRA | Service Manual - Page 9
.375 74.375 Proposed VESA VESA VESA VESA VESA(XGA) VESA(XGA) VESA(XGA) VESA(WXGA) VESA(WXGA) Supported HDCP DVI Digital 1080i HDCP DVI Digital 720p 8. HDMI DTV INPUT Mode Table No Resolution 1 720x576 2 720x480 3 1280x720 4 1280x720 5 1920x1080 6 1920x1080 H-freq(kHz) 31.25 31.47 45.00 44 - LG 42LB1DRA | Service Manual - Page 10
Green input 12 Comms Data 1 13 Ground (Red) 14 Ground (Blanking) 15 Red input 16 RGB Switching Control 17 Ground (Video input & Output) 18 Ground (RGB Switching Control) 19 Video output (Composite) 20 Video input (Composite) 21 Common ground (Shield) Scart Arrangement - LG 42LB1DRA | Service Manual - Page 11
on the MPLAB ICD2 POWER Supply. +13V GND Data Test Pattern 2min 30sec Test Pattern 30sec Connect the RS-232 or USB Cable Connect the MPLAB ICD2 and connector of Digital Board (3) After turn on the PC and MONITOR, select the 'MPLAB IDE' from the screen. 4-2. Adjustment Sequence - LG 42LB1DRA | Service Manual - Page 12
on the JIG MAIN POWER SWITCH. (3) After turn on the PC and MONITOR, execute the 'Certificate Downloader v1.4' from the screen. 5-2. Adjustment on the Output window appears as below. (5) Select "File -> Import", select the Work HEX file and open. (2) Select 'Connection' and SET connected to RS-232C. - LG 42LB1DRA | Service Manual - Page 13
Adjustment Confirmation Work (1) Turn on the TV and run Factory Test Program of PC. [ Program only needs to run once, regardless of set quantity. (2) Enter the EZ adjust menu by pressing Adjust on the Service Remote Control (S R/C). (3) Go to number 1 Gemstar and press Enter. (4) TV set screen will - LG 42LB1DRA | Service Manual - Page 14
is removed. Not OK(Unlock) Not OK(20dB under) Black Screen (No Picture) Each PCB Assy must be checked by Check JIG Set before assembly. (Especially, be careful Power PCB Assy which can cause Damage to the PDP Module.) Connection Diagram of Power Adjustment for Measuring (Power Board - LG 42LB1DRA | Service Manual - Page 15
Synopsis ADC-Set adjustment to set the black level and the Gain to optimum. 10-2. Test Equipment Service R/C, 801GF(802B, 802F, 802R) or Pattern(HozTV31Bar) in 480i Mode and select 'Normal' in screen. (2) After receiving signal for at least 1 second, press the ADJ Key on the Service R/C to enter the - LG 42LB1DRA | Service Manual - Page 16
RUN at least 30 minutes by pressing the Power only Key on the Service Remote Control and adjust. (2) After attaching sensor to center of screen, select 'WhiteBalance' of 'Ez - Adjust' by pressing the ADJ KEY on the Service R/C. Then enter adjustment mode by pressing the Right KEY (G ). This time - LG 42LB1DRA | Service Manual - Page 17
of the main screen (Normal, Spectacle, Wide or Zoom) Shortcut keys 7 CAPTION Switch to closed caption broadcasting 8 TXT To toggle on/off the teletext mode 9 TV/AV To select an external input for the TV screen 10 TURBO SOUND To start turbo sound 11 TURBO PICTURE To start turbo picture 12 IN - LG 42LB1DRA | Service Manual - Page 18
TROUBLESHOOTING & BLOCK DIAGRAM DDR 32Mb - 18 - • DCR DVR ANT. Cabl e IIC 1 • Block Box-show the U-Com 0XC0 OOB IF+/- OOB/POD Contro ller (USA Only) IN/OUT connections ATSC/NTSC/ 2nd IF r(6M) VSB DATA SDRAM Controller - Peripheral Controller - Local BUS I/F - Serial(2), GPIO, I2Cr Reset - LG 42LB1DRA | Service Manual - Page 19
• Digital B/D MUX Interface PVRSoc 656 TP_IN1/2 TP_OUT SUB UPD 656data MUX CPLD TP/D1 HD2.4 - 19 - VSB_TP VSB QAM_TP POD - LG 42LB1DRA | Service Manual - Page 20
AAZZ11111177--11..88 AAZZ11111177--33..33 IC600 IC201 LLCCXX224444 LLCCXX1144 EEPPMM557700__225566 IC802 8822BB771155 SSili3l3551122 Live Power Dead Power IC907 SSCC22559955 IC909 HHYY55DDUU557733222222 DDR-RAM IC904 AAZZ11111177--22..55 LLGGDDTT11330044 IC906 AAZZ11111177--11..88 - LG 42LB1DRA | Service Manual - Page 21
• Digital B/D Power Block - 21 - ++2200VV ++1122VV ++66VV IC301 KKAA77880099RR +9.0V IC301 PPQQ0055DDZZ11UU +5.0V TTAASS55112222 [24mA] [5mA SSi3i3886655 +5VST_RFSW PWR_SW1 SSi3i3886655 PWR_SW2 SSCC11556655--11..88 NNSSPP22110000AA [200mA] RRFF__SSWW Power Block Diagram (Detailed) Live - LG 42LB1DRA | Service Manual - Page 22
DVR I2C MAP - 22 - I2C_CH1(Live) CPU_I2C CPU (PPC405GPr) I2C Master AT/NT/OOB Tuner (TDVM-H751P) 0xC0 NT Tuner (VP-15R) 0xC6 NT Tuner (Korea only) (TDVS-H901P) 0xC2 I2C_CH2(Dead) I2C Hub (PCA9516) IEP2 (LGDP4411) 0x1E ADC /w HDMI (MST3361) 0x9C NT Decoder Main Switch AV Switch DASP Main - LG 42LB1DRA | Service Manual - Page 23
Out11 TP In1 TP In2 656 DDDDRR--3322MMBB OOB Data - 23 - • DCR DVR VIDEO PATH FFlalasshhMMeemm 2244MMBB SSDDRRAAMM 6644MMBB PPPPCC440055GGPPrr Peri Bus Feature Extractor PVR Down Controller SC-AES System Decoder & De-scramblers (ATSC/DIRECTV /ARIB/DVB/OC) PVR Up Controller DSC-AES Ch Input - LG 42LB1DRA | Service Manual - Page 24
• DCR DVR NO OSD - 24 - - LG 42LB1DRA | Service Manual - Page 25
L VDS Cable Y 6 Check P DP Module Control bo ard Check Power connector Check LG DT1102C (IC401) Check LG DP4411 (IC1305) Check LG DP4412 (IC804) Y Replace Power board 1 : _Check the D1601, D1602, D1603, D1604 (Digital board)) ON. _Check Power c onnector. 2 : _Check the LGDP4412(IC804) inpu - LG 42LB1DRA | Service Manual - Page 26
• DCR DVR RF/AV MODE - 26 - - LG 42LB1DRA | Service Manual - Page 27
DVR RF/AV MODE Check A nten na Cable Check M ain Pict ure Sub Pictur e (PIP) Main Pictur e Check N TSC Tuner 5V, 33V, Video out Check C onnecto r Check C XA2069 Power pi ns, TV Check F MS6400 Power pi ns, Yin Check U pd64015 Power pins , Osc, AYI1 Check u PD64015 outputs HD, VD, Check Si gnal Data - LG 42LB1DRA | Service Manual - Page 28
tion PIP or D/W mo de TV Is normal t he main of D/ W MODE when you e xecution TV/TV mod e ? YES Is it 5V #6 ou tp ut of TUNER ( TU1302) ? YES Is it 33V #8 o utp ut of TUNER(TU1302) ? YES NO Is norma l # 16 outp ut of TUNER(TU1302) ? (TV/CATV mode does not display) Replace th e TUNER(TU1302) - 28 - LG 42LB1DRA | Service Manual - Page 29
• DCR DVR RF MODE 1. Check f ollo w 1-2. When i t is norm al output of the TUNER Is normal t he main of D/ W MODE? Is it 9V #42 of CXA2069(IC101) ? Is n ormal #56 o utput of CXA2069(IC101)? FIG1 FIG1 FIG2 (TV/CATV mode does not display) Is no rmal the su b of D/W MODE? Is it 9V #42 of CXA2069( - LG 42LB1DRA | Service Manual - Page 30
• Component/RGB/HDMI/DVI - 30 - - LG 42LB1DRA | Service Manual - Page 31
XA2181(IC501) Power 2 Pins, Osc, Comp 1(#41,#42,#43), Comp2 Data (30Bit) , DE(#97) 8 Check C PLD (IC301) HD(#96),VD(#95) Check C Y2309 (IC203) 8 REF(#1), CLKA4(#15) Check C PLD (IC301) AV Board Digit al Bo ard 1 : _Check supported format(ref. owner's manual) 2 : _Check CXA2181(IC300) power - LG 42LB1DRA | Service Manual - Page 32
DVR HDMI/DVI Y 1 Sno w noi se (Whit e dot) ? Power o ff and on (TV or STB/DVD...) N Check HDCP Power Pin (IC604), MST3361(IC603) IIC(#69,#70) 2 Vid eo is norm al & No Sound ? Y Re-do wnloa d EDID(IC605,IC606) N 3 Check M ST3361(IC603) inpu ts Power 59.94Hz (Data) : Digital Data 5 : - LG 42LB1DRA | Service Manual - Page 33
• DCR DVR DTV/CADTV - 33 - - LG 42LB1DRA | Service Manual - Page 34
C PLD(IC305)Outputs CLK, SOP, Valid , Error, Data Check H D2.4(LGDT1102F) Inpu t CLK, SOP, Valid , Error, Data 1 : _Check Antenna cable(RF switch, Tuners...) 2 : _Check Tuners Vcc and IF out Seems to noise 3 : _ Check LGD T3703(IC1305) inputs power pi ns , Osc (25Mhz), IF pin Signal 4 :_ Check - LG 42LB1DRA | Service Manual - Page 35
Pre-proc PVR Up Controller DSC-AES Ch Input I/F SCI I/F PLL/DLL TP Out12 TP Out11 TP In1 TP In2 656 HDD SSiIiI33551122 ((IICC11000022)) PCI Bus OOB Data OOB IF AT/NT V2 NTSC Encod er -AC-3 Decod er/SPDIF In/out Peri Bus 14bit IIEEPP33 ((IICC880044)) PDP/LCD Module LLVVDDSS ((IICC880033)) - LG 42LB1DRA | Service Manual - Page 36
2. Check HDD Signal cable (SATA) CLK FRAME# AD 3. Check SiI3512(IC1002) inputs: Power pins, Osc C/BE# • Check LED1000 blinking • Check PCI bus IRDY# TRDY# DEVSEL# Check CPLD(IC305) inputs (CLK), (SOP), (Valid), 4 (Error),(Data) Check CPLD(IC305) outputs 5 (CLK), (SOP), (Valid), (Error - LG 42LB1DRA | Service Manual - Page 37
• Power On-Off repetition(Automatically) Symptom : TV set po wers on ( LED :White ) and off ( LED :R ed ) repeatedl y of its elf. ( No video ) Check X1100 (10MHz) Normal? YES Re- download PIC18F1220(IC1103 ) Normal? NO Replace PIC18F1220 ( IC1103 ) and Re- download No Video ? YES Check CPL D LED and - LG 42LB1DRA | Service Manual - Page 38
Mode Symptom : When TV set powers on, LED i s blin ki ng in secon ds. And po wer off(LED is red) Check Fa ns Fan(P1606), upper /sid e ( 50" : 1EA, 42" : No FAN ) Fan op erate norm ally ? NO Check Fa n wafers and c onn ector s. Norm al? No Replace Fans and recheck - 38 - Check P1603 (power - LG 42LB1DRA | Service Manual - Page 39
cable service provider or CableCARD manufacturer. Also, below table shows how to access diagnostic screens for the DCR TV. Many of these screens are not described in the User Manual. - 39 - CableCARD Mfg ALL Motorola Motorola Motorola Mororola NDS NDS NDS SA Diagnostic Type CableCARD main menu - LG 42LB1DRA | Service Manual - Page 40
still having a problem, the installer should report the problem to the MSO headend dispatcher for troubleshooting. If the higher than 12 dB is normal range. Below table describes how to check above status in LG DCR TV. - 40 - Cabl eCARD Mfg ALL - works with any Cabl eCARD Diagnostic Type Host D - LG 42LB1DRA | Service Manual - Page 41
- • Audio Path RGB Audi o Compone nt 1 Compone nt 2 AV Front AV NT Tun er AT/NT Tuner HDD HDMI AUDIO TROUBLESHOOTING & BLOCK DIAGRAM AV Switch (CXA2069) L/R L/R L/R L/R Main Audi o Process or (MSP4450K) SIF L/R SIF Buffer (MC33078) Sub Audi o Process or (MSP4458G) I2S I2S ADC (CS5331A) I2S - LG 42LB1DRA | Service Manual - Page 42
• Common sound out - 42 - - LG 42LB1DRA | Service Manual - Page 43
- 43 - • TV RF NO Sound NT Tun er AT/NT Tuner SIF SIF Main Audi o Process or (MSP4450K) L/R Buffer (MC33078) I2S ADC (CS5331A) I2S PWM Modulator (NSP2100A) AMP (TAS5122) Front Speaker Monitor Out I2S HD-2 SPDIF System CPLD (EPM570T144) SPDIF Out (Optical ) - LG 42LB1DRA | Service Manual - Page 44
- 44 - • TV RF NO Sound 1 Check An tenna Cable Check N TSC Tuner (TU1302) 2 #4(33V), #7,18 in/outpu ts & Power 7 #8(9V), #2, 6(in pu t), #1, 7(output) Check C S5331(IC1000) in/outputs & Power 8 #7(5V), #5,8(L/R input), #1(LRCH), #2(SCK), #3(LRCK), # 4(MCLK) Check LG DT1102F(IC402) inputs - LG 42LB1DRA | Service Manual - Page 45
- 45 - • DTV NO Sound AT/NT Tuner Main (LGDT3703) Main Audi o Process or (MSP4450K) PWM Modulator (NSP2100A) AMP (TAS5122) Front Speaker Monitor Out I2S MUX CPLD (EPM570F256) TP HD-2 SPDIF System CPLD (EPM570) SPDIF Out (Optical ) - LG 42LB1DRA | Service Manual - Page 46
- 46 - • DTV NO Sound 1 Check An tenna Cable 2 Check AT/NT Tuner (TU1300) #3,11(5V), #24(IF_N), #25(IF_P) 3 Check LG DT3703 (IC1305) in pu ts #22(IF_P), #23(IF_N) Check LG DT3703 (IC1305) outputs 4 #44,45,47,49,50,52,54,55(VSB_DATA), #57(ERROR), #59(VALID), #61(SOP), #62(CLK) 5 Check - LG 42LB1DRA | Service Manual - Page 47
• AV/Component/RGB NO Sound RGB Audi o Compone nt 1 Compone nt 2 AV Front AV AV Switch (CXA2069) L/R L/R L/R L/R Main Audi o Process or (MSP4450K) L/R Buffer (MC33078) I2S ADC (CS5331A) I2S PWM Modulator (NSP2100A) AMP (TAS5122) Front Speaker Monitor Out - 47 - I2S HD-2 SPDIF System - LG 42LB1DRA | Service Manual - Page 48
onnecto r P103(#16,#18) 6 Check M C33078(IC1001) in/outpu ts & Power #8(9V), #2, 6(in pu t), #1, 7(output) Check C S5331(IC1000) in/outputs & Power 7 #7(5V), #5,8(L/R input), #1(LRCH), #2(SCK), #3(LRCK), # 4(MCLK) 8 Check LG DT1102F(IC402) inputs R413(LRCH), R414(LRCK), R415(SCK) Check Com - LG 42LB1DRA | Service Manual - Page 49
• HDMI NO Sound Main Audi o Process or (MSP4450K) PWM Modulator (NSP2100A) AMP (TAS5122) Front Speaker Monitor Out I2S - 49 - HDMI HD-2 SPDIF MST3361 SPDIF CS8415A System CPLD (EPM570T144) SPDIF Out (Optical ) - LG 42LB1DRA | Service Manual - Page 50
(IC603) outputs 2 #125(HDMI_SPDIF_OUT) Check C S8415A(IC1006) in/outpu ts 3 #14(HDMI_SPDIF), #16(SCK), #17(LRCK), #18(SPDIF_OUT), #10(SPDIF_CLK) 4 Check LG DT1102F(IC402) inputs 5 Fol lo w the pr ocedur e of " COMMON SOUND OUT" SPDIF BYPASS Check EP M570T144 (IC301) Check SP DIF ou - LG 42LB1DRA | Service Manual - Page 51
• Record & Play No Sound - 51 - AV Front AV NT Tun er AT/NT Tuner HDD Main (LGDT3703) SiI 3512 Main Audi o Process or (MSP4450K) L/R Sub Audi o Process or (MSP4458G) I2S Buffer (MC33078) I2S ADC (CS5331A) I2S PWM Modulator (NSP2100A) AMP (TAS5122) MUX CPLD (EPM570F256) TP - LG 42LB1DRA | Service Manual - Page 52
#15(B-), #19(A-), #20(A+) Check s iI3512(IC1002) ou tputs 3 PCI_AD(32-bits), PCI Control si gn als Check PP C405GPr(IC100) in/ou tputs 4 PCI_AD(32-bits), PCI Control si gn als, PER_ADDR(32-bits), PER_DATA(12-bit s), PER Control si gna ls 5 Fol lo w the pr ocedur e of " COMMON SOUND OUT" - LG 42LB1DRA | Service Manual - Page 53
EXPLODED VIEW 010 052 020 060 051 070 030 080 140 130 - 53 - 100 090 120 110 040 - LG 42LB1DRA | Service Manual - Page 54
AB00EA SUPPORTER CABLE MANAGEMENT ABS MOLD ABS 120 6709900017A Power Supply Assembly, YY LCD H3/E2 LCD MODEL LB LC 42INCH 42INCH 130 3313942001A Main Total Assembly, LA61A DIGITAL BOARD TOTAL 42LB1DRA BRAND-LPL Module 3313942001B Main Total Assembly, LA61A P7 MODULE DIGITAL BOARD TOTAL 42LB1DR - LG 42LB1DRA | Service Manual - Page 55
REPLACEMENT PARTS LIST For Capacitor & Resistors, the charactors at 2nd and 3rd digit in , Metal Glazed(Chip) RR : Drawing *S *AL LOC. NO. PART NO. DIGITAL BOARD CAPACITOR DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION C100 C1001 C1002 C1005 C1012 C1014 C1015 C1022 C1031 C1032 C1045 C1053 C1057 - LG 42LB1DRA | Service Manual - Page 56
0805F105Z160CT 1u -20TO+80% 0603B104K500CT 100n 10% 50V C1608C0G1H180JT 18p 5% 50V 0603B103K500CT 10n 10% 50V *S *AL LOC. NO. PART NO. DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION C1305 C1306 C1307 C1309 C1310 C1311 C1312 C1313 C1315 C1316 C1317 C1321 C1322 C1327 C1328 C1329 C1330 C1335 C1343 - LG 42LB1DRA | Service Manual - Page 57
10% 50V 0603B104K500CT 100n 10% 50V 0603B104K500CT 100n 10% 50V 0603B104K500CT 100n 10% 50V 0603B104K500CT 100n 10% 50V *S *AL LOC. NO. PART NO. DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION C337 C338 C339 C340 C341 C342 C343 C344 C345 C346 C347 C351 C352 C402 C403 C405 C406 C407 C408 C409 C410 - LG 42LB1DRA | Service Manual - Page 58
% 25V C1608X7R1E473KT 47n 10% 25V C1608C0G1H220JT 22p 5% 50V C1608C0G1H220JT 22p 5% 50V 0603B104K500CT 100n 10% 50V *S *AL LOC. NO. PART NO. DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION C661 C662 C669 C670 C671 C7004 C7008 C7009 C701 C7010 C7011 C7012 C7013 C7014 C7015 C7016 C7017 C7018 C7019 - LG 42LB1DRA | Service Manual - Page 59
10% 50V 0603B104K500CT 100n 10% 50V 0603B104K500CT 100n 10% 50V 0603B104K500CT 100n 10% 50V 0603B104K500CT 100n 10% 50V *S *AL LOC. NO. PART NO. DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION C860 C861 C862 C863 C864 C865 C866 C867 C868 C869 C870 C871 C872 C873 C874 C875 C876 C877 C878 C879 C880 - LG 42LB1DRA | Service Manual - Page 60
50V 0603B104K500CT 100n 10% 50V 0603B104K500CT 100n 10% 50V 0805F105Z160CT 1u -20TO+80% 0603B104K500CT 100n 10% 50V *S *AL LOC. NO. PART NO. DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION C1396 C1618 C1621 C1625 C1626 C1628 C200 C206 C211 C217 C218 C223 C229 C231 C232 C233 C234 C3000 C3001 C3044 - LG 42LB1DRA | Service Manual - Page 61
110 3.3V_2.5V - *S *AL LOC. NO. PART NO. DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION IC1303 IC203 IC210 IC504 IC100 IC1002 IC1101 IC1202 IC303 IC306 TQF LGDT3703D LG SYSTEM IC 128P PA9516APW PHILIPS 16P TSSOP LGDT1102F HD2.4 LG IC 432P LGDT1901B LG IC SSOP 24P TR "LGDP4412, IEP3 LG IC 452P,T" - LG 42LB1DRA | Service Manual - Page 62
1.6X HB-1M1608-121JT 120OHM 1.6X HB-1M1608-121JT 120OHM 1.6X HB-1M1608-121JT 120OHM 1.6X *S *AL LOC. NO. PART NO. DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION R244 L1000 L1001 L1003 L1005 L1304 L1305 L1306 L1322 L1323 L100 L1309 L505 6210TCE0013 0LCML00020B 0LCML00020B 0LCML00020C 0LCML00020C - LG 42LB1DRA | Service Manual - Page 63
5% 1/16W RCA86TRJ51R0 51OHM 5% 1/16W RCA86TRJ51R0 51OHM 5% 1/16W RD-92T1J3R30 3300MOHM 5% 1/ RD-92T1J33R0 33OHM 5% 1/2W *S *AL LOC. NO. PART NO. DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION R1009 R1010 R1011 R1012 R1013 R1014 R1022 R1023 R1026 R1029 R103 R1030 R1031 R1032 R104 R107 R1102 R1103 - LG 42LB1DRA | Service Manual - Page 64
100OHM 5% 1/10 MCR03EZPJ101 100OHM 5% 1/10 MCR03EZPJ820 82OHM 5% 1/10W MCR03EZPJ820 82OHM 5% 1/10W MCR03EZPJ000 0OHM 5% 1/10W *S *AL LOC. NO. PART NO. DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION R3075 R3079 R3080 R3084 R316 R321 R331 R332 R333 R334 R335 R346 R347 R348 R385 R387 R388 R389 R392 - LG 42LB1DRA | Service Manual - Page 65
10OHM 5% 1/10W MCR03EZPJ000 0OHM 5% 1/10W MCR03EZPJ000 0OHM 5% 1/10W MCR03EZPJ101 100OHM 5% 1/10 MCR03EZPJ102 1KOHM 5% 1/10W *S *AL LOC. NO. PART NO. DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION R925 R926 R935 R938 R939 R945 R946 R949 R950 R951 R962 R963 R964 R965 R966 R969 R972 R985 R988 R989 - LG 42LB1DRA | Service Manual - Page 66
0OHM 5% 1/10W MCR03EZPJ220 22OHM 5% 1/10W MCR03EZPJ220 22OHM 5% 1/10W MCR03EZPJ222 2.2KOHM 5% 1/1 MCR03EZPJ331 330OHM 5% 1/10 *S *AL LOC. NO. PART NO. DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION R1384 R1385 R1397 R1398 R1399 R141 R143 R148 R151 R1600 R1602 R1603 R1604 R1605 R1606 R1610 R1611 - LG 42LB1DRA | Service Manual - Page 67
22OHM 5% 1/10W MCR03EZPJ220 22OHM 5% 1/10W MCR03EZPJ220 22OHM 5% 1/10W MCR03EZPJ220 22OHM 5% 1/10W MCR03EZPJ220 22OHM 5% 1/10W *S *AL LOC. NO. PART NO. DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION R376 R377 R380 R381 R382 R383 R384 R386 R394 R395 R396 R398 R408 R409 R423 R424 R425 R426 R427 - LG 42LB1DRA | Service Manual - Page 68
22OHM 5% 1/10W MCR03EZPJ220 22OHM 5% 1/10W MCR03EZPJ220 22OHM 5% 1/10W MCR03EZPJ101 100OHM 5% 1/10 MCR03EZPJ101 100OHM 5% 1/10 *S *AL LOC. NO. PART NO. DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION R777 R778 R779 R780 R814 R815 R816 R819 R822 R824 R846 R851 R852 R853 R854 R855 R856 R857 R858 - LG 42LB1DRA | Service Manual - Page 69
1.1p 1. AVRL161A1R1NT 10V - 1.1p 1. AVRL161A1R1NT 10V - 1.1p 1. ANALOG BOARD CAPACITOR C101 C105 C106 C107 C109 0CE105WK6DC MVK4.0TP50VC1M 1u 20% 50V 5 0CE226WF6DC 2.2u 20% 5 *S *AL LOC. NO. PART NO. DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION C110 C112 C115 C116 C117 C121 C122 C126 C127 - LG 42LB1DRA | Service Manual - Page 70
10% 50V 0CK104CK56A 0603B104K500CT 100n 10% 50V 0CK104CK56A 0603B104K500CT 100n 10% 50V 0CK334CF94A C1608Y5V1C334ZT 330n -20TO+ *S *AL LOC. NO. PART NO. DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION C317 C322 C323 C325 C326 C329 C337 C338 C339 C340 C341 C342 C343 C348 C349 C350 C351 C352 C353 - LG 42LB1DRA | Service Manual - Page 71
MC2838-T112-1 1200MV 75V 30 MC2838-T112-1 1200MV 75V 30 UDZS5.6B 5600MV 5.49TO5.73V *S *AL LOC. NO. PART NO. DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION ZD201 ZD202 ZD601 ZD602 ZD603 ZD604 ZD605 ZD618 ZD619 ZD620 ZD606 ZD621 ZD622 0DZRM00248A 0DZRM00248A 0DZ560009DA 0DZ560009DA 0DZ560009DA - LG 42LB1DRA | Service Manual - Page 72
MCR03EZPJ474 470KOHM 5% 1/1 MCR03EZPJ680 68OHM 5% 1/10W MCR03EZPJ102 1KOHM 5% 1/10W MCR03EZPJ472 4.7KOHM 5% 1/1 MCR03EZPJ750 75OHM 5% 1/10W *S *AL LOC. NO. PART NO. DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION R150 R155 R157 R158 R159 R160 R161 R162 R163 R164 R202 R203 R204 R210 R212 R215 R216 - LG 42LB1DRA | Service Manual - Page 73
82OHM 5% 1/10W MCR03EZPJ820 82OHM 5% 1/10W MCR03EZPJ820 82OHM 5% 1/10W MCR03EZPJ820 82OHM 5% 1/10W MCR03EZPJ820 82OHM 5% 1/10W *S *AL LOC. NO. PART NO. DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION R102 R104 R105 R106 R107 R108 R109 R111 R114 R128 R130 R137 R138 R139 R140 R142 R143 R147 R148 - LG 42LB1DRA | Service Manual - Page 74
MCR03EZPJ333 33KOHM 5% 1/10 *S *AL LOC. NO. PART NO. DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION R597 R598 R599 R6009 R6019 R6020 R6021 R6025 R6027 LG INNOTEK 75 OH SX-1 18.432MHZ 30PPM 18.432 SX-1 18.432MHZ 30PPM 18.432 HC-49/SM4H 4MHZ 30PPM 4MHZ SX-1 24MHZ 30PPM 24MHZ 30PP CONTROL BOARD - LG 42LB1DRA | Service Manual - Page 75
*S *AL LOC. NO. PART NO. DATE: 2006. 02. 20. DESCRIPTION / SPECIFICATION IC101 C102 C103 C104 C105 C106 C108 C109 C111 7KOHM 5% 1/8 MCR10EZHJ472 4.7KOHM 5% 1/8 MCR10EZHJ103 10KOHM 5% 1/8W SIDE BOARD C100 C101 R105 R106 R107 R108 R109 R110 0CH4101K416 0CH4101K416 0RH0000D622 0RH4700D622 - LG 42LB1DRA | Service Manual - Page 76
- LG 42LB1DRA | Service Manual - Page 77
- LG 42LB1DRA | Service Manual - Page 78
- LG 42LB1DRA | Service Manual - Page 79
- LG 42LB1DRA | Service Manual - Page 80
- LG 42LB1DRA | Service Manual - Page 81
P/NO : 38289S0043Y Feb, 2006 Printed in Korea
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LCD TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : LA61A
MODEL : 42LB1DR-UA / 42LB1DRA-UA
website:http://biz.LGservice.com