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LG 32LF5600, Service Manual

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LG 32LF5600 Service Manual Download Page 1

Printed in Korea

P/NO : MFL68646508(1502-REV00)

CHASSIS : LA57H

MODEL : 49LF5400   

49LF5400-UB

CAUTION

BEFORE SERVICING THE CHASSIS,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

LED TV

SERVICE MANUAL

North/Latin America 

http://aic.lgservice.com

Europe/Africa http://eic.lgservice.com

Asia/Oceania http://biz.lgservice.com

Internal Use Only

Summary of Contents for 32LF5600

Page 1: ...ODEL 49LF5400 49LF5400 UB CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL LED TV SERVICE MANUAL North Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz lgservice com Internal Use Only ...

Page 2: ...lectronics Inc All rights reserved Only for training and service purposes CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 4 ADJUSTMENT INSTRUCTION 10 TROUBLE SHOOTING 16 BLOCK DIAGRAM 22 EXPLODED VIEW 23 SCHEMATIC CIRCUIT DIAGRAM APPENDIX ...

Page 3: ...inals 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 ohm meter to the AC plug prongs tied together and touch other ohm meter lead in turn to each exposed m...

Page 4: ...lectrostatic charge on your body by touching a known earth ground Alter natively obtain and wear a commercially available discharging wrist strap device which should be removed to prevent poten tial shock reasons prior to applying power to the unit under test 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent...

Page 5: ...he 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 leads of replacement component around notch at stake top 3 Solder the connections CAUTION Maintain original spacing between the replace...

Page 6: ... Temperature 25 ºC 5 ºC 77 9 ºF CST 40 ºC 5 ºC 2 Relative Humidity 65 10 3 Power Voltage Market Input voltage Frequency Remark USA 100 240V 50 60Hz Standard Voltage of each product is marked by models 4 Specification and performance of each parts are followed each drawing and specification by part number in accordance with BOM 5 The receiver must be operated for about 20 minutes prior to the adjus...

Page 7: ...x 49LF5400 Ux 55LF5500 Ux 32 inch Wide 1366 768 HD 60Hz 32LF560B Ux 6 Aspect Ratio 16 9 7 Tuning System FS 8 Module Direct LC320DXE MGA3 LGD HD 60Hz 32LF560B Ux HC320DXN ABHS3 BOE HD 60Hz 32LF560B Ux LC320DUE MGA3 LGD FHD 60Hz 32LF5600 Ux NC320DUN VBBP3 BOE FHD 60Hz 32LF5600 Ux LC420DUE MGA3 LGD FHD 60Hz 42LF5600 Ux NC420DUN VUBP5 AUO FHD 60Hz 42LF5600 Ux LC420DUE MGA6 LGD FHD 60Hz 42LF5500 Ux NC4...

Page 8: ...SDTV DVD 480I 3 720 480 31 47 59 94 27 00 SDTV 480P 4 720 480 31 50 60 00 27 027 SDTV 480P 5 1280 720 44 96 59 94 74 176 HDTV 720P 6 1280 720 45 00 60 00 74 25 HDTV 720P 7 1920 1080 33 72 59 94 74 176 HDTV 1080I 8 1920 1080 33 75 60 00 74 25 HDTV 1080I 9 1920 1080 26 97 23 976 74 176 HDTV 1080P 10 1920 1080 27 00 24 00 74 25 HDTV 1080P 11 1920 1080 33 71 29 97 74 176 HDTV 1080P 12 1920 1080 33 75 ...

Page 9: ... 9 1920 1080 33 72 59 94 74 176 HDTV 1080I 10 1920 1080 33 75 60 00 74 25 HDTV 1080I 11 1920 1080 26 97 23 97 74 176 HDTV 1080P 12 1920 1080 27 00 24 00 74 25 HDTV 1080P 13 1920 1080 33 71 29 97 74 176 HDTV 1080P 14 1920 1080 33 75 30 00 74 25 HDTV 1080P 15 1920 1080 67 43 59 94 148 352 HDTV 1080P 16 1920 1080 67 5 60 00 148 50 HDTV 1080P PC 1 640 350 70Hz 31 46 70 09 25 17 EGA X 2 720 400 70Hz 31...

Page 10: ...g Digital pattern 13ch and or Cross hatch pattern 09ch there can some afterimage in the black level area 3 Adjustment items 3 1 Main PCBA Adjustments 1 ADC adjustment Component 480i 1080p RGB PC 1080p 2 EDID download HDMI and RGB PC Above adjustment items can be also performed in Final Assembly if needed Adjustment items in both PCBA and final assembly tages can be checked by using the INSTART Men...

Page 11: ...key on the Adj R C 2 Select EDID D L menu 3 By pressing Enter key EDID download will begin 4 If Download is successful OK is display but If Download is failure NG is displayed 5 If Download is failure Re try downloads Caution When EDID Download must remove RGB HDMI Cable 6 EDID Write confirmation 4 2 5 Models for EDID Data 2D HD 8bit HDMI 2ea FHD 8bit HDMI 2ea North America PCM 32LF560B Ux 32LF550...

Page 12: ...LCD Back light on should be checked using no signal or Full white pattern 5 1 2 Equipment 1 Color Analyzer CA 210 NCG CH 9 WCG CH12 LED CH14 2 Adj Computer During auto adj RS 232C protocol is needed 3 Adjust Remocon 4 Video Signal Generator MSPG 925F 720p 204 Gray Model 217 Pattern 49 Only when internal pattern is not available Color Analyzer Matrix should be calibrated using CS 1000 5 1 3 Equipme...

Page 13: ...just 1 Fix G gain at least 172 Adjust R B Gain In Case of Mostly Blue Gain Saturation 2 When R or B Gain 255 Release Fixed G Gain and Readjust CASE Medium Warm mode First adjust the coordinate far away from the target value x y 1 x y target i Decrease the R G 2 x y target i First decrease the B gain ii Decrease the one of the others 3 x target y target i First decrease B so make y a little more th...

Page 14: ...49228 28768 WM Y LGD 1553 5126 49220 28768 CC US D AUO 9744 5126 49228 24672 WM D AUO 9744 5126 49220 24672 49LF5500 Ux CC US Y LGD 2321 5126 49228 24672 WM Y LGD 2321 5126 49220 24672 55LF5500 Ux CC US Y LGD 2833 5126 53324 24672 WM Y LGD 2833 5126 53316 24672 Tool option can be reconstructed by Software 6 GND and HI POT Test 6 1 GND HI POT auto check preparation 1 Check the POWER CABLE and SIGNA...

Page 15: ...ow the message Copying files from memory 4 Updating is staring 5 Updating Completed The TV will restart automatically 6 If your TV is turned on check your updated version and Tool option If downloading version is more high than your TV have TV can lost all channel data In this case you have to channel recover If all channel data is cleared you didn t have a DTV ATV test on production line After do...

Page 16: ...Output Check DRV ON Control P200 11pin High Change Module Check TCON Module Panel_VCC Q205 13 2V Check IC402 3 4 Output Voltage IC202 1 15V 5V IC200 1 8V Q204 3 3V NO NO NO NO NO NO NO NO OK OK NO OK Check 12pin Power connector Main B D 3 3V Line Short Check Re download software Replace X100 Replace Mstar IC102 or Main Board Check PSU Replace Q205 Replace IC402 IC403 IC404 Q403 Main B D 13 2V Line...

Page 17: ...upported Check AV Cable for damage for damage or open conductor Check Tuner 3 3V Power L500 Check JK401 CVBS Signal Line R120 Check IF_P N Signal TU501 6 7 Pin Check CVBS_DET Signal Check Mstar LVDS Output Check Mstar LVDS Output NO NO NO NO NO NO Replace L500 Replace Jack Bad Tuner Replace Tuner Replace AR401 or R110 Replace Mstar IC102 or Main Board Replace Mstar IC102 or Main Board OK OK OK OK ...

Page 18: ...vice purposes 4 Component Video Check input signal format Is it supported Check Component Cable for damage or open conductor Check JK401 Y PB PR signal Line C h e c k C O M P _ D E T Signal Check Mstar LVDS Output NO NO NO Replace Jack Replace AR401or R109 Replace Mstar IC101 or Main Board OK OK OK OK ...

Page 19: ...nductors for damage or open conductor Check EDID AR102 AR101 AR410 AR411 I2C Signal Check JK403 JK404 Check HDMI_DET HPD Check HDMI Signal Check Mstar LVDS Output NO NO NO NO NO NO Replace the defective IC or re download EDID data Replace Jack Replace R418 R410 Q400 R419 Check other set If no problem check signal line Replace Main Board Replace Mstar IC101 or Main Board OK OK OK OK OK OK ...

Page 20: ...IO_MASTER_CLK R148 Check Connector P5600 Check speaker resistance and connector damage Check Output Signal P5600 1 2 3 4 pin Check Mstar I2S Output IC5600 20 21 22 Pin OFF NO NO NO NO NO NO NO Toggle the Menu Main B D 3 3V Line Short Check Check signal line Or replace Mstar IC101 Replace Mstar IC101 or Main Board Replace connector if found to be damaged Replace speaker Replace Audio AMP IC IC5600 ...

Page 21: ... Pin Follow procedure 7 All source audio trouble shooting guide NO NO NO Replace L500 Replace AR500 R502 R503 Bad Tuner Replace Tuner OK OK OK OK Check AV Cable for damage for damage or open conductor Check Component Cable for damage or open conductor Check JK401 Signal Line R409 R406 Check JK401 Signal Line R409 R406 Follow procedure 7 All source audio trouble shooting guide Follow procedure 7 Al...

Page 22: ...106 LED 110 100 101 59 58 62 EEP SDA EEP SCL 114 113 112 111 SPI_CLK SPI_DI SPI_CZ SPI_DO S_AMP_24V 3 13 LPF JK605 USB_5V P304 IR KEY1 KEY2 ST_3 5V Q204 DMP2130L Panel_Vcc USB_DN USB_DP IF_N 33 JK602 4 34 Comp R L In AV1 In 29 34 35 22 24 26 34 35 21 33 51 32 57 131 56 132 144 134 135 145 152 48 IF_P HDMI2 JK603 67 78 MHL_5V USB_DN USB_DP 124 123 52 87 127 63 64 65 66 139 140 1 4 153 156 HDMI1 HDM...

Page 23: ...ted characteristics These parts are identified by in the Schematic Diagram and EXPLODED VIEW It is essential that these 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 IMPORTANT SAFETY NOTICE 200 521 400 401 540 120 530 410 900 901 LV1 A2 A10 Se...

Page 24: ... 70 B_ODD 3 LVA3 LLV5 71 B_ODD 4 LVACLK LLV4 72 B_ODD 5 LVACLK LLV4 73 B_ODD 6 LVA2 LLV3 CLK 74 B_ODD 7 LVA2 LLV3 CLK 75 G_ODD 0 LVA1 LLV2 EPI0 76 G_ODD 1 LVA1 LLV2 EPI0 77 G_ODD 2 LVA0 LLV1 EPI1 78 G_ODD 3 LVA0 LLV1 EPI1 79 G_ODD 4 LVB4 LLV0 EPI2 80 G_ODD 5 LVB4 LLV0 EPI2 81 G_ODD 6 LVB3 RLV6 EPI3 82 G_ODD 7 LVB3 RLV6 EPI3 83 R_ODD 0 LVBCLK RLV5 EPI4 84 R_ODD 1 LVBCLK RLV5 EPI4 85 R_ODD 2 LVB2 RL...

Page 25: ...17 10K OPT M13 2V R205 10K M13 2V R208 68K 1 16W 1 L207 4 7uH R242 200 1 ZD201 5V OPT SD05 C240 22uF 6 3V 3 3V_ST R221 12K C200 10uF 25V C225 22uF 16V M13 2V L200 BLM18PG121SN1D 3 3V_ST 3 3V_NORMAL R246 4 7K C231 82pF 50V OPT Q202 MMBT3904 NXP TR_NXP E B C R222 1 8K C202 0 1uF 25V OPT R202 10K Q205 SSM3J332R S G D R229 91K R212 3 9K 1 R213 1 6K 1 R210 100K L202 2uH R240 10K R228 10K L208 MLB 20120...

Page 26: ...0 ZD300 5V OPT POWER_DET AMP_RESET R309 2 2K 13 2V_AMP C308 0 1uF 16V C312 0 1uF 16V L301 120OHM SPK_L C316 0 1uF 16V C328 330pF 50V 13 2V_AMP AMP_SCL SPK_R C343 2200pF 50V OPT R305 4 7K AUD_LRCH IC300 TAS5733 1 OUT_A 2 PVDD_AB_1 3 PVDD_AB_2 4 BST_A 5 NC_1 6 SSTIMER 7 NC_2 8 PBTL 9 AVSS 10 PLL_FLTM 11 PLL_FLTP 12 VR_ANA 13 AVDD 14 A_SEL_FAULT 15 MCLK 16 OSC_RES 17 DVSSO 18 VR_DIG 19 PDN 20 LRCLK 2...

Page 27: ...05 R405 75 1 comp shape 1005 C418 22uF 10V OPT 2012 C417 22uF 10V OPT 2012 5V_DET_HDMI_1 VR407 OPT 5V_DET_HDMI_2 VR404 OPT D1 _HDMI1 D1 _HDMI1 VR409 OPT R410 1K 5V_NORMAL HPD2 VR406 OPT 5V_NORMAL AR410 4 7K 1 16W DDC_SDA_1 D2 _HDMI1 D2 _HDMI1 DDC_SDA_2 R411 1K OPT VR410 OPT Q400 MMBT3904 NXP TR_NXP E B C HPD1 R415 4 7K VR411 OPT DDC_SCL_2 D0 _HDMI1 VR412 OPT CK _HDMI1 R416 4 7K VR408 OPT R413 2 7K...

Page 28: ...AR C504 15pF 50V C501 15pF 50V AR500 33 1 16W R501 33 1 16W 5 R500 33 1 16W 5 L500 PZ1608U121 2R0TF C503 0 1uF 16V 3 3V_TU C500 100pF 50V C502 0 1uF 16V IF_AGC_MAIN TU_GND_A TDJH H301F TU501 47 SHIELD 6 DIF P 7 DIF N 8 SIF 9 CVBS 1 3 3V 2 NC_1 3 DIF_AGC 4 SCL_RF 5 SDA_RF A1 A1 B1 B1 L15_M1L 140822 TUNER 3 3V_NORMAL 3 3V_TU TUNER for ATSC W O Isolator Close to the tuner 1 should be guarded by groun...

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