LG 32LX2D Service Manual
LG 32LX2D Manual
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- LG 32LX2D | Service Manual - Page 1
website:http://biz.LGservice.com e-mail:http://www.LGEservice.com/techsup.html LCD TV SERVICE MANUAL CHASSIS : AL-05PA MODEL : 32LX2D-AA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. - LG 32LX2D | Service Manual - Page 2
CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 11 SVC REMOCON 14 TROUBLE SHOOTING 15 BLOCK DIAGRAM 24 WIRING DIAGRAM 26 EXPLODED VIEW 27 REPLACEMENT PARTS LIST 29 SVC. SHEET 47 -2- - LG 32LX2D | Service Manual - Page 3
recommended in this manual to prevent Shock, servicing of a receiver whose chassis is not isolated from the AC power line. Use a transformer of adequate power service operation. If any fuse (or Fusible Resistor) in this TV and touch other ohm-meter lead in turn to each exposed metallic parts such as - LG 32LX2D | Service Manual - Page 4
by this service manual might be equipped. 6. Do not apply AC power to this instrument surfaces to be soldered. Use a mall wirebristle (0.5 inch, or 1.25cm) brush with a metal handle. both the component lead and the foil. CAUTION: Work quickly to avoid overheating the circuit board printed foil - LG 32LX2D | Service Manual - Page 5
remove and replace the IC. When working with boards using the familiar round Power Output, Transistor Device Removal/Replacement 1. Heat and remove all solder from around the transistor leads. 2. Remove the heat sink mounting sharp knife. Remove at least 1/4 inch of copper, to ensure that a hazardous - LG 32LX2D | Service Manual - Page 6
SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 1. Application range 1.1 This spec sheet is applied all of the 32" LCD TV with AL-05PA chassis. 1.2 Not included spec and each product spec in this spec sheet apply correspondingly to the following - LG 32LX2D | Service Manual - Page 7
RED GREEN BLUE 6 Color Temperature WHITE (Standard) Medium Cool Warm 6. Power No Item 1. AC Power Operating Voltage 2. DC Voltage, LCD Panel Drive 3. DC Voltage, Inverter 4. DC Voltage, Sound AMP 5. DC Voltage, Stand By 6. DC Voltage, Scaler(HD2) 7. DC Voltage, Scaler(HD2) 8. DC - LG 32LX2D | Service Manual - Page 8
1920x1080(50/60) H-freq(kHz) 15.625 31.25 15.73 31.47 37.5/45.0 28.125/33.75 8. RGB, HDMI/DVI input (DTV / PC) No Resolution DTV 1. 720x576 2. 704x480 3. 1280x720(50/60) 4. 1920x1080(50/60) PC 1. 640x350 2. 640x480 3. 640*480 4. 640x480 5. 800x600 6. 800x600 7. 800x600 8. 800x*600 - LG 32LX2D | Service Manual - Page 9
specifications(module) No Item 1 Active Screen Size 2 Outline Dimension 3 Pixel Pitch 4 Pixel Format 5 Color Depth 6 Luminance ,White 7 Viewing Angle (CR>10) 8 Power 31.51 inches Typ. Center 1 point Typ. 4,267.2 m 12,192.0 m 25±2°C 9-1. Electro Optical Characteristic Specifications(module - LG 32LX2D | Service Manual - Page 10
Color Sharpness Tint Color temperature SSM AVL Balance Treble Bass Front surround TV speaker BBE Auto clock Off timer On timer Sleep timer Auto sleep Main input Sub input Sub title Child lock ARC Cinema Lock System Block Program Parental Guide Aux.Block Value Off C0,C5,C6,S11,S27,C35,C52 - LG 32LX2D | Service Manual - Page 11
INSTRUCTION 1. Application Object This document is applied to 32" LCD TV is no specific designation. Press the POWER ON KEY on mode. If you turn on a still LCD Module.) 3. EDID(The extended display Identification data) / DDC(Display Data Channel) Download 3-3. EDID DATA - Download only EDID for HDMI - LG 32LX2D | Service Manual - Page 12
Load the EDID data.(Open File) [Digital(HDMI) : Checksum(5750)] 3) Set the S/W of the 720P 60Hz Mode what is supportable to Component2 or RGB-DTV INPUT and the least 1 second, press the ADJ Key on the Service R/C to enter the 'Ez - Adjust' and Write Data & Verify"button. And input the data. 5) If the - LG 32LX2D | Service Manual - Page 13
surface when you adjust. Manual adjustment is also possible by the following sequence. (1) Enter '3.White-Pattern' by pressing ADJ KEY on the Service Remote Control. (2) Select "Test Pattern White" using Vol +/- Key and Execute HEAT RUN at least 15 minutes. (3) Receive the HDMI/DVI 720p 60Hz, Full - LG 32LX2D | Service Manual - Page 14
KEY FUNTION REMARK 1 POWER To turn the TV on or off 2 POWER ON To turn the TV on automatically if the power is supplied to the TV. (Use the POWER key to deactivate) : It should be deactivated when delivered. 3 MUTE To activate the mute function. 4 P-CHECK To check TV screen image easily - LG 32LX2D | Service Manual - Page 15
No image Yes Is the Set ON? NO Push the POWER ON key Is the input cable attached? Yes What is the input signal mode? NO Attach the input cable(s) Component / S-Video TROUBLESHOOTING - 15 - Correct them FAIL Check the Condition of all Connectors, wafers, I2C PASS In component (component) - LG 32LX2D | Service Manual - Page 16
attached? Yes What is the input signal mode? RF/AV/IDTV input NO Attach the input cable(s) Check Secondary CVBS at R434 (for PiP) PASS Power Error FAIL FAIL Check 9V Across L401and at pin 3 of IC100 5V across L404 , L402 PASS Replace IC1 AN15865 Correct them FAIL Check the Condition - LG 32LX2D | Service Manual - Page 17
key Is the input cable attached? Yes What is the input signal mode? NO Attach the input cable(s) HDMI / DVI DTV - 17 - Power Error Correct them FAIL Check the Condition of all Connectors, wafers, I2C In corresponding Signal flow PASS Check the Corresponding EDID Storage memory (I.e., IC202 - LG 32LX2D | Service Manual - Page 18
Is the input cable attached? Yes What is the input signal mode? NO Attach input cable or memory card DVI PC / X-Studio - 18 - Correct them Power Error FAIL Check the Condition of all Connectors,wafers,I2C and slots In corres Ponding Signal flow PASS Check the i/p RGB/HV signal At the - LG 32LX2D | Service Manual - Page 19
(DVI PC / X-Studio) Check the 24 bit RGB signal output of ADC(X98014) across RA500-501 FAIL PASS To sheet 21 (component) Check the 3.3V supply volt across L503, L504 And clock frequency at pin 39,40 of ADC FAIL PASS Replace ADC - LG 32LX2D | Service Manual - Page 20
,18,20,21,22 30,31,32 pin PASS Check the output of From sheet 18 PASS Check the supply Vcc 3.3V across L6,7 Power Error - 20 - PASS Check LVDS PASS output for PiP at pin 37,41,45,47 & for main image at pin 48,46,42,38 of IC902(LVDS IC). Check Power Levels and do Power Troubleshooting - LG 32LX2D | Service Manual - Page 21
RF/AV at AN15865 Is PiP mode ON? NO Push PiP key Yes Check in owners manual whether the input given for PiP is supported or not Not Supported Change the input for PiP Supported What is the PIP input Any other Follow the corresponding Troubleshooting Procedure for same mode PASS To sheet 21 - LG 32LX2D | Service Manual - Page 22
No Audio Push the POWER ON key Turn OFF the Mute NO Yes Yes Is the Set ON? Is Mute ON PASS PASS FAIL Replace NSP PASS Check 3.3V supply across L305 and 2.5V at L304 FAIL Power Error FAIL Check the Amplifier output level At L300-303 FAIL Check 18V supply at pin 55and pin 30 of AMP PASS - LG 32LX2D | Service Manual - Page 23
MSP PASS Check the input HDMI_I2S at pin 1,3,6 and DTV_I2S at pin 2,5,11 of IC603 PASS 2. IDTV/HDMI-Audio - 23 - Check 3.3V supply across L305 and 2.5V at L304 FAIL Power Error FAIL Check 18V supply at pin 55and pin 30 of AMP PASS Replace TAS5122(amp) FAIL Check the PWM output of NSP - LG 32LX2D | Service Manual - Page 24
BLOCK DIAGRAM(Video) - 24 - - LG 32LX2D | Service Manual - Page 25
SPDIF) 74LCX157 (Tx Buffer) *AV : LR *Component1 ∆LR, SPDIF (Priority) *Component2 : LR *RGB (PC/DTV) : LR *DVI (PC/DTV) ∆LR, SPDIF (Priority) *HDMI SPDIF OUT NSP6241B SPK Out LC TAS5122 PWM_LR (PWM) LPF (D.Amp) Slave mode RXC/0/1/2C nCA_RST_SPDIF (from CPU) SEL_SPDIF_HD2_nSPDIF (from CPU - LG 32LX2D | Service Manual - Page 26
WIRING DIAGRAM - 26 - 2 10 9 3 6 1 14 15 5 7 888 4 13 12 17 16 11 1 - 6631T11023F : 31P 2 - 6631T20037D : 12P 3 - 6631T20037E : 12P 4 - 6631T25024G : 3P 5 - 6631T25024H : 4P 6 - 6631T25023H : 15P 7 - 6631T25024Z : 3P 8 - 6631T11022A : 31P 9 - 6631T25019W : 5P 10 - 6631T25023R : 13P 11 - - LG 32LX2D | Service Manual - Page 27
010 020 060 070 080 090 100 110 030 050 EXPLODED VIEW - 27 - 130 120 160 150 140 040 170 180 - LG 32LX2D | Service Manual - Page 28
CABINET ASSEMBLY, 32LX2D-AA BRAND CABINET ASSY 020 6304FLP288A LCD(LIQUID CRYSTAL DISPLAY), LC320W01-SL01 LG PHILPS TFT COLOR WXGA AIODC SPEC UP LEAD FREE 030 3809TKE030V BACK COVER ASSEMBLY, 32LX2D-AA DTV 3808TKE025 SET 040 3043TKK252A TILT SWIVEL ASSEMBLY, 32LX2D-UA STAND ASSY 050 - LG 32LX2D | Service Manual - Page 29
Film RN : Metal Film RH : CHIP, Metal Glazed(Chip) RR : Drawing *S *AL LOC. NO. PART NO. MAIN BOARD(Analog) CAPACITOR DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION C110 C112 C113 C114 C206 C208 C219 C220 C221 C222 C224 C304 C310 C311 C318 C319 C325 C327 C410 C411 C412 C420 C421 C422 C423 - LG 32LX2D | Service Manual - Page 30
PART NO. DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION C514 C517 C518 C519 C521 C525 C528 C529 C532 C534 C535 20% SMD R/TP *S *AL LOC. NO. PART NO. DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION C308 C309 C414 C415 C416 C417 C418 C426 C429 C431 C432 C433 C436 C438 C443 C507 C511 C520 C531 - LG 32LX2D | Service Manual - Page 31
-501 CERATEC 3216M 6210TCE001G HH-1M3216-501 CERATEC 3216M 6210TCE001G HH-1M3216-501 CERATEC 3216M *S *AL LOC. NO. PART NO. DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION L618 L619 L620 L621 L622 L108 L302 L405 L407 L608 L609 L624 L625 L626 L627 L629 L630 L700 L109 L110 L202 L204 L212 L213 L214 - LG 32LX2D | Service Manual - Page 32
10 W 2012 5.00 *S *AL LOC. NO. PART NO. DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION R343 R348 R349 R350 R351 R356 R358 R405 R407 R412 R413 R418 R437 R438 R439 R442 R443 R5 R501 R502 R503 / 10 W 2012 5.00% D 0RH0000D622 0 OHM 1 / 10 W 2012 5.00% D 0RH0000D622 0 OHM 1 / 10 W 2012 5.00% D - 32 - - LG 32LX2D | Service Manual - Page 33
10 W 5% 1608 R/TP *S *AL LOC. NO. PART NO. DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION R504 R505 R506 R507 R517 R518 R519 R521 R524 R527 R530 R532 R533 R536 R537 R538 R539 R540 R542 R543 R544 , 6.0MHZ ,50" 6202VDT002H SX-1 SUNNY 18.432000MHZ +/6634D00014B TASA-G204D LG INNOTEK 75 OH - 33 - - LG 32LX2D | Service Manual - Page 34
0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP 0CH2103K666 0.01UF 50V 20% X7R 2012 R/T *S *AL LOC. NO. PART NO. DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION C1553 C1555 C1556 C1557 C1558 C1559 C1560 C1561 C1562 C1563 C1566 C1567 C1568 C1569 C1570 C1571 C1572 C1573 C1574 C1575 C1576 C1577 C1578 C1579 - LG 32LX2D | Service Manual - Page 35
PART NO. DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION C222 C231 C234 C235 C236 C238 C240 C256 C257 C259 X7R 2012 R/TP *S *AL LOC. NO. PART NO. DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION C436 C437 C438 C439 C440 C441 C442 C445 C451 C452 C453 C454 C456 C457 C458 C459 C460 C463 C464 C465 - LG 32LX2D | Service Manual - Page 36
PART NO. DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION C510 C511 C512 C513 C514 C516 C517 C518 C519 C520 % X7R 2012 R/TP *S *AL LOC. NO. PART NO. DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION C717 C718 C720 C721 C725 C802 C803 C807 C808 C811 C828 C829 C908 C910 C912 C919 C920 C951 C952 C956 - LG 32LX2D | Service Manual - Page 37
R/TP NP0 0CC471CK41A 470PF 1608 50V 5% R/TP NP0 0CC471CK41A 470PF 1608 50V 5% R/TP NP0 *S *AL LOC. NO. PART NO. DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION C1507 C1509 C227 C228 C262 C263 C352 C385 C422 C424 C711 C727 C801 C819 C831 C972 C975 R217 R261 C1003 C1004 C104 C1404 C1407 C1409 - LG 32LX2D | Service Manual - Page 38
20% SMD R/TP *S *AL LOC. NO. PART NO. DIODEs DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION D104 D1101 D801 0DD184009AA KDS184 TP KEC - 85V - - - 3 0DD184009AA KDS184 TP KEC - 85V - LGDT1901A LG IC 24P SSOP TR 0ICTMLG018B LGDP4411 IEP2 LG IC 208P LQ 0ICTMLG009C LGDT1102C HD2.3 LG IC - LG 32LX2D | Service Manual - Page 39
3216M 6210TCE001G HH-1M3216-501 CERATEC 3216M 6210TCE001G HH-1M3216-501 CERATEC 3216M *S *AL LOC. NO. PART NO. DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION L1626 6210TCE001G HH-1M3216-501 CERATEC 3216M TRANSISTOR Q1401 Q1402 Q401 Q501 Q901 Q201 Q202 Q203 Q402 Q403 Q404 Q405 Q406 Q601 Q602 - LG 32LX2D | Service Manual - Page 40
/ 10 W 2012 5.00% D 0RH0000D622 0 OHM 1 / 10 W 2012 5.00% D 0RH0222D622 22 OHM 1 / 10 W 2012 5.00% *S *AL LOC. NO. PART NO. DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION R409 R410 R423 R460 R463 R466 R479 R483 R486 R495 R496 R498 R499 R500 R502 R503 R504 R505 R506 R507 R601 R604 R606 R609 R613 - LG 32LX2D | Service Manual - Page 41
10 W 5% 1608 R/TP 0RJ1001D677 1K OHM 1/10 W 5% 1608 R/TP 0RJ0000D677 0 OHM 1/10 W 5% 1608 R/TP *S *AL LOC. NO. PART NO. DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION R1408 R1409 R1410 R1412 R1413 R1503 R1504 R1505 R173 R174 R175 R176 R177 R178 R1806 R1807 R183 R186 R187 R190 R191 R192 R193 R194 - LG 32LX2D | Service Manual - Page 42
NO. DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION R302 R303 R307 R308 R309 R311 R313 R315 R316 10 W 5% 1608 R/TP *S *AL LOC. NO. PART NO. DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION R465 R467 R469 R470 R471 R472 R473 R474 R475 R476 R477 R478 R480 R481 R482 R484 R485 R487 R488 R489 R490 - LG 32LX2D | Service Manual - Page 43
NO. DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION R655 R657 R659 R661 R665 R667 R668 R672 R677 10 W 5% 1608 R/TP *S *AL LOC. NO. PART NO. DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION R829 R830 R831 R832 R833 R834 R835 R836 R837 R838 R839 R841 R842 R844 R845 R846 R847 R848 R849 R852 R853 - LG 32LX2D | Service Manual - Page 44
CONTROL BOARD SW1101 140-313B TACT 2LEAD 160G(TA) LG C&D SW1102 140-313B TACT 2LEAD 160G(TA) LG C&D SW1103 140-313B TACT 2LEAD 160G(TA) LG C&D SW1104 140-313B TACT 2LEAD 160G(TA) LG C&D SW1105 140-313B TACT 2LEAD 160G(TA) LG 09. 12. DESCRIPTION / SPECIFICATION ZD1205 0DZ510009EE UDZ S 5.1B - LG 32LX2D | Service Manual - Page 45
0RH2200D622 220 OHM 1 / 10 W 2012 5.00% 0RH2200D622 220 OHM 1 / 10 W 2012 5.00% *S *AL LOC. NO. PART NO. DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION R3105 0RH2200D622 220 OHM 1 / 10 W 2012 5.00% R3106 0RH2200D622 220 OHM 1 / 10 W 2012 5.00% R3107 0RH2200D622 220 OHM 1 / 10 W 2012 5.00% R3108 - LG 32LX2D | Service Manual - Page 46
*S *AL LOC. NO. PART NO. DATE: 2005. 09. 12. DESCRIPTION / SPECIFICATION R2123 R2124 R2125 R2126 R2127 R2128 R2154 R2155 0RH0222D622 22 OHM 1 / 10 W 2012 5.00% 0RH0222D622 22 OHM 1 / 10 W 2012 5.00% 0RH2200D622 220 OHM 1 / 10 W 2012 5. - LG 32LX2D | Service Manual - Page 47
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P/NO : 38289S0022K Oct, 2005 Printed in Korea
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LCD TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : AL-05PA
MODEL : 32LX2D-AA
website:http://biz.LGservice.com