LG 55LB5900 Page 43 Service Manual Download

Page: 43 / 43

Summary of Contents for 55LB5900

Page 1: ...ODEL 55LB5900 55LB5900 UV 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: ...LG Electronics Inc All rights reserved Only for training and service purposes CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 4 ADJUSTMENT INSTRUCTION 11 TROUBLE SHOOTING 17 BLOCK DIAGRAM 22 EXPLODED VIEW 25 SCHEMATIC CIRCUIT DIAGRAM ...

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: ...1 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 adju...

Page 7: ...2 inch Wide 1366 768 HD 60Hz 6 Aspect Ratio 16 9 7 Tuning System FS 8 Module POLA HC600DUF VHHS1 HC600DUF VHHS2 HS Sharp Panel 60LB6000 Ux 60LB5900 Ux LC550DUE FGA3 LC550DUE FGA4 LGD 55LB6000 Ux 55LB5900 Ux T550HVF04 1 T550HVF04 2 AUO 55LB6000 Ux xxxJxxx 55LB5900 Ux xxxJxxx HC550DUN VSHS1 HC550DUN VSHS2 HS CSOT Panel 55LB6000 Ux xxxCxxx 55LB5900 Ux xxxCxxx LC500DUE FGA3 LC500DUE FGA4 LGD 50LB6000 ...

Page 8: ...80P 5 2 HDMI Input DTV PC No Resolution H freq kHz V freq kHz Pixel clock MHz Proposed Remarks DTV 1 720 480 31 500 60 000 27 027 SDTV 480P 2 720 480 31 470 59 940 27 000 SDTV 480P 3 1280 720 45 000 60 000 74 250 HDTV 720P 4 1280 720 44 960 59 940 74 176 HDTV 720P 5 1920 1080 33 750 60 000 74 250 HDTV 1080I 6 1920 1080 33 720 59 940 74 176 HDTV 1080I 7 1920 1080 67 500 60 000 148 500 HDTV 1080P 8 ...

Page 9: ... HDTV 1080i Side by Side half Top Bottom 6 1920 1080 27 24 74 25 HDTV 1080P Side by Side half Top Bottom 7 1920 1080 33 7 30 74 25 HDTV 1080P Side by Side half Top Bottom b HDMI Input 1 3 Connect the HDMI cable receiving the HDMI signal Press 3D key of remote control select 3D format below No Resolution H freq kHz V freq Hz Pixel clock MHz Proposed 3D input proposed mode 1 1280 720 45 00 60 00 74 ...

Page 10: ...nd service purposes 6 4 2D to 3D Mode 6 5 DLNA No Resolution H freq kHz V freq Hz Pixel clock MHz Proposed 3D input proposed mode 1 1920 1080 33 75 30 00 74 25 HDTV 1080P Side by Side Top Bottom No 2D to 3D Top Bottom Side by Side Single Frame Sequential Frame Packing 1 6 6 Remark 3D Input mode ...

Page 11: ...f needed Adjustment items in both PCBA and final assembly tages can be checked by using the INSTART Menu 1 ADJUST CHECK Component 1080p and RGB PC Adjust will be calculated by 480i adjust value 3 2 Final assembly adjustment 1 White Balance adjustment 2 RS 232C functionality check 3 Factory Option setting per destination 4 Shipment mode setting In Stop 5 GND and HI POT test 3 3 Appendix 1 Shipment ...

Page 12: ...alance without the saturation G gain should be adjust at least 172 and change the others R B Gain When R or B gain is over 255 G gain can be adjust below 172 Case Medium Warm Mode To adjust the white balance without the saturation Fix the one of R G B gain to 192 default data and decrease the others 3 Adj condition normal temperature Surrounding Temperature 25 5 C Warm up time About 5 Min Surround...

Page 13: ...ust begin as start command wb 00 00 and finish as end command wb 00 ff and Adj offset if need 5 1 5 2 Manual adjustment 1 Set TV in Adj mode using POWER ON 2 Zero Calibrate the probe of Color Analyzer then place it on the center of LCD module within 10cm of the surface 3 Press ADJ key EZ adjust using adj R C 8 White Balance then press the cursor to the right KEY When KEY is pressed 204 Gray 80IRE ...

Page 14: ...mi winter season Jan Feb Global except Cinema Screen models Standard color coordinate and temperature using CA 210 CH 14 by aging time GP4 Aging time Min Cool Medium Warm X Y X Y X Y 271 270 286 289 313 329 1 0 2 286 295 301 314 328 354 2 3 5 284 290 299 309 326 349 3 6 9 282 287 297 306 324 346 4 10 19 279 283 294 302 321 342 5 20 35 276 278 291 297 318 337 6 36 49 274 275 289 294 316 334 7 50 79...

Page 15: ...s If Test is passed execute next process Hi pot test Remove A V CORD from A V JACK BOX 5 HI POT test Auto If Test is failed Buzzer operates If Test is passed GOOD Lamp on and move to next process automatically 6 3 Checkpoint 1 Test voltage GND 1 5KV min at 100mA SIGNAL 3KV min at 100mA 2 TEST time 1 second 3 TEST POINT GND Test POWER CORD GND and SIGNAL CABLE GND Hi pot Test POWER CORD GND and LIV...

Page 16: ...ow the message Copying files from memory 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 downloading TOOL OPTION ...

Page 17: ...d Check Multi Voltage P401 9pin 24V 13pin 12V Replace Power Board Check Inverter Control P401 2 pin High Check Power Board or Module Check IC403 4 Output Voltage IC403 1 15V IC404 1 5V Q406 3 3V Replace IC403 4 Q406 Re download software IC102 IC1300 Check Micom Voltage L206 3 3V AVDD_NODIE Replace L206 Check LVDS Power Voltage Q405 12V Replace Q405 Check Mstar LVDS Output Replace Mstar IC101 or Ma...

Page 18: ...ignal format Is it supported Check AV Cable for damage for damage or open conductor Check JK1702 CVBS Signal Line R1707 ok ok ok No Replace Jack ok Check CVBS_DET Signal R1713 Replace R1713 or R1710 No Check Mstar LVDS Output Replace Mstar IC101 or Main Board No 3 AV Video Check input signal format Is it supported Check Component Cable for damage or open conductor Check JK1702 Y PB PR signal Line ...

Page 19: ...d Check HDMI Cable conductors for damage or open conductor Check EDID R810 R811 R815 R816 I2C Signal Check JK800 JK801 ok ok ok No No Re download EDID data ok Replace Jack Check HDMI Signal Check other set If no problem check signal line No Check Mstar LVDS Output Replace Mstar IC101 or Main Board ok No Replace Main Board No Check HDMI_DET HPD No ok Replace R809 R814 ...

Page 20: ... P5600 Replace connector if found to be damaged ok No Check speaker resistance and connector damage Replace speaker ok No Off Toggle the Menu Check AMP IC IC5600 Power 24V 3 3V No Replace Amp IC IC5600 Check Mstar I2S Output IC5600 20 21 22 Pin No Check signal line Or replace Mstar IC101 Check Mstar AUDIO_MASTER_CLK IC5600 15 Pin No Replace Mstar IC101 or Main Board ok Check AMP I2C Line IC5600 23...

Page 21: ...Follow procedure 6 All source audio trouble shooting guide ok Check Tuner 3 3V Power L1600 Replace L1600 Check IF_P N Signal TU1601 6 7 Pin ok ok No No Bad Tuner Replace Tuner 8 AV Comp Audio Check AV Cable for damage for damage or open conductor Check JK1702 Signal Line R1714 R1715 ok ok No Replace Jack Follow procedure 7 All source audio trouble shooting guide ...

Page 22: ...System EEPROM 256Kbit IC104 I2C_SCL SDA NAND FLASH 1Gbit IC102 PCM_A 0 7 FHD RXA0 RXA4 RXACK RXB0 RXB4 RXBCK SPK_R SPK_L AMP_SCL SDA AUD_MASTER_CLK AUD_LRCH AUD_LRCK AUD_SCK TAS5733 IC5600 Main SOC M1A 256MB IC101 Connector P600 KEY1 2 LED_R IR REAR HDMI1 JK801 TU_SCL SDA SIF D_IF CVBS Comp1 AV1 JK1701 SPDIF_OUT SPDIF Optic JK1001 SIDE USB JK700 HDMI2 MHL JK803 CK D0 D1 D2 _HDMI4 DDC_SCL SDA_4 HDM...

Page 23: ...ND FLASH 1Gbit IC102 PCM_A 0 7 FHD RXA0 RXA4 RXACK RXB0 RXB4 RXBCK SPK_R SPK_L AMP_SCL SDA AUD_MASTER_CLK AUD_LRCH AUD_LRCK AUD_SCK TAS5733 IC5600 Main SOC M1A 128MB 내장 IC101 Connector P600 KEY1 2 LED_R IR REAR HDMI1 JK801 TU_SCL SDA SIF D_IF CVBS Comp1 AV1 JK1701 SPDIF_OUT SPDIF Optic JK1001 SIDE USB JK700 HDMI2 MHL JK803 CK D0 D1 D2 _HDMI4 DDC_SCL SDA_4 HDMI_CEC SIDE_USB_DM DP USB1_OCD CTL TPS65...

Page 24: ...reserved Only for training and service purposes 3 I2C Map HW_I2C SW_I2C SW_I2C TUNER AMP DEMOD LNB EEPROM Digital_Eye HW I2C 4ea SW I2C 1ea HW_I2C I2C_SC D KM3 I2C_DDCR_CK GPIO76 77 SCK D M0 GPIO58 59 I2C_SC D KM1 GPIO80 81 GPIO159 160 SDAM2 GPIO55 56 HW_I2C URSA VCOM ...

Page 25: ...acteristics 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 X RADIATION Shock Fire or other Hazards Do not modify the original design without permission of manufacturer IMPORTANT SAFETY NOTICE 900 200 400 410 540 521 530 820 120 121 LV1 A2 A1...

Page 26: ...ATA 5 PCM_D 2 PCM_A 14 CI_TS_DATA 4 SCART1_Lout PCM_REG HP_ROUT PCM_IOWR CI_TS_DATA 1 PCM_RST PCM_A 12 CI_TS_VAL CI_TS_DATA 3 PCM_WAIT SCART1_Rout CI_TS_DATA 6 PCM_D 4 PCM_A 8 DTV MNT_VOUT PCM_D 7 PCM_OE SIDE_HP_MUTE CI_TS_DATA 7 PCM_IORD PCM_A 11 SC1_B COMP1_Pb SC1_G COMP1_Y SC1_R COMP1_Pr SC1 COMP1_L_IN SC1 COMP1_DET SC1 COMP1_R_IN FE_TS_DATA 1 FE_TS_DATA 2 FE_TS_DATA 3 FE_TS_DATA 4 FE_TS_DATA 5...

Page 27: ...012 C434 390pF 50V C419 0 039uF 50V C423 270pF 50V C435 0 1uF 16V C418 0 01uF ZD404 5V 3 5V_POWER_DET 3 5V_POWER_DET 3 5V_POWER_DET 3 3V_Normal VBUS_EN MHL_OCP_EN R463 2 7K MHL_SW_TR R464 10K MHL_SW_TR Q408 MHL_SW_TR E B C R462 10K MHL_SW_TR Q407 MHL_SW_TR E B C Q409 MHL_SW_TR E B C R465 10K MHL_SW_TR R461 10K MHL_SW_TR R439 20K 1 R440 47K 1 R433 2 7K 1 R447 22K C403 100pF 50V OPT R415 15K 5 R459 ...

Page 28: ...FIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 13 11 16 USB_S1 66 L14_M1A JK700 3AU04S 305 ZC LG 1 2 3 4 5 D700 RCLAMP0502BA OPT SIDE_USB1_DM SIDE_USB1_DP ZD700 5V OPT SD05 C701 5pF 50V OPT C702 5pF 50V OPT 5V_USB C700 22uF 16V C703 22uF 16V C704 22uF 16V USB 3216 CAP SIDE Copyright 2014 LG Electronics Inc All rights reserved Only for training and service purpos...

Page 29: ...DMI2 JK801 EAG62611204 HDMI 2 14 NC 13 CE_REMOTE 5 D1_GND 20 GND 12 CK 11 CK_GND 2 D2_GND 19 HP_DET 18 5V 10 CK 4 D1 1 D2 17 GND 9 D0 8 D0_GND 3 D2 16 DDC_DATA 7 D0 6 D1 15 DDC_CLK D803 2 RCLAMP0524PA ESD_HDMI1_SEMTECH 1 8 2 7 3 6 4 5 9 10 D804 2 RCLAMP0524PA ESD_HDMI1_SEMTECH 1 8 2 7 3 6 4 5 9 10 D806 2 RCLAMP0524PA ESD_HDMI2_SEMTECH 1 8 2 7 3 6 4 5 9 10 D805 2 RCLAMP0524PA ESD_HDMI2_SEMTECH 1 8 ...

Page 30: ...D FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC SPDIF 2013 10 29 10 NC5_L14 3 3V_Normal SPDIF_OUT JK1001 JST1223 001 SPDIF_OPTIC 1 GND 2 VCC 3 VINPUT 4 FIX_POLE C1001 1uF 10V OPT C1002 47pF 50V SPDIF_CAP_47pF C1002 1 18pF 50V SPDIF_CAP_18pF SPDIF OPTIC JACK 5 15 Mstar Circuit Application SPDIF ESD Ready Copyright 2014 LG Electronics Inc All rights reserved Only for training and s...

Page 31: ...2C 3 3V_Normal URSA VCOM_SDA URSA VCOM_SCL P1101 10031HR 30 MO_HD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 RXB1 RXB0 RXA4 RXA1 Pol change RXB4 RXACK RXBCK RXA0 RXA2 LVDS NON EU RXA2 RXBCK RXB4 RXA3 RXA1 RXB2 RXB3 RXA3 RXBCK RXACK RXA2 RXA1 RXB1 RXB3 RXA3 RXA2 RXA0 RXA4 Shift RXBCK RXB2 RXA4 51Pin LVDS Connector For FHD 60Hz RXACK RXA3 RXACK RXB3 RXA3 RXA1...

Page 32: ...KE E17 B_DDR3_ODT B8 B_DDR3_RASZ C8 B_DDR3_CASZ B9 B_DDR3_WEZ D11 B_RESET F10 B_DDR3_CS0 D12 B_DDR3_DQSL A19 B_DDR3_DQSU B18 B_DDR3_DQML C16 B_DDR3_DQMU D21 B_DDR3_DQSBL C18 B_DDR3_DQSBU C17 B_DDR3_DQL 0 A20 B_DDR3_DQL 1 A16 B_DDR3_DQL 2 C19 B_DDR3_DQL 3 C15 B_DDR3_DQL 4 C20 B_DDR3_DQL 5 C14 B_DDR3_DQL 6 B21 B_DDR3_DQL 7 B15 B_DDR3_DQU 0 F18 B_DDR3_DQU 1 D19 B_DDR3_DQU 2 D17 B_DDR3_DQU 3 E21 B_DDR...

Page 33: ... S_FLASH 2013 04 29 13 NC5_S7LR M1A SPI_SCK 3 5V_ST 3 5V_ST C1300 0 1uF R1301 4 7K OPT SPI_CS SPI_SDO IC1300 MX25L8006EM2I 12G SPI_FLASH_MACRONIX 3 WP 2 SO SIO1 4 GND 1 CS 5 SI SIO0 6 SCLK 7 HOLD 8 VCC R1302 33 R1300 10K OPT SPI_SDI FLASH_WP IC1300 1 W25Q80BVSSIG SPI_FLASH_WINBOND 3 WP IO2 2 DO IO1 4 GND 1 CS 5 DI IO0 6 CLK 7 HOLD IO3 8 VCC 3 5V_ST Serial Flash for SPI boot Copyright 2014 LG Elect...

Page 34: ...TU R1605 0 IF_NON_FILTER_KR C1614 20pF 50V OPT TU_SCL TU_GND_A R1608 33 RF_SWITCH_CTL C1607 0 1uF 16V FE_TS_SYNC R1611 1 1K TU_IIC_NON_ATSC_1K 3 3V_Normal FE_TS_CLK R1610 1 8K TU_IIC_ATSC_1 8K TDJH G101D TU1601 1 TU_AJ_T C 47 SHIELD 6 IF P 7 IF N 8 NC_2 9 NC_3 1 B1 3 3V 2 NC_1 3 IF_AGC 4 SCL 5 SDA A1 A1 B1 B1 TDJH H101F TU1601 TU_ATSC 47 SHIELD 6 IF P 7 IF N 8 NC_2 9 NC_3 1 B1 3 3V 2 NC_1 3 IF_AGC...

Page 35: ..._KEC R1707 75 1 1608 R1702 75 1 AV2 1608 DTV MNT_VOUT R1723 75 CVBS_OUT_TEST R1724 0 CVBS_OUT_TEST JK1702 PPJ245N2 01 COMP_AV1_YG 5A GN YL O SPRING 6A GN YL E LUG 4A GN YL CONTACT 5B BL O SPRING 7C RD1 E LUG S 5C RD1 O SPRING 4C RD1 CONTACT 5D WH O SPRING 4E RD2 CONTACT 5E RD2 O SPRING 6E RD2 E LUG JK1702 1 PPJ245 01 COMP_AV1_G 6A GN C SPRING 7A GN E LUG 4A GN CONTACT 5B BL C SPRING 8C RD1 E LUG S...

Page 36: ...PHONE C3003 1000pF 50V OPT HP_LOUT R3004 1K HEAD_PHONE HP_DET 3 5V_ST HP_ROUT SIDE_HP_MUTE R3002 1K HEAD_PHONE C3002 1000pF 50V OPT R3003 1K HEAD_PHONE Q3002 MMBT3904 NXP OPT E B C Q3003 MMBT3904 NXP OPT E B C Q3005 MMBT3904 NXP OPT E B C Q3004 MMBT3904 NXP OPT E B C Q3001 MMBT3906 NXP OPT E B C Q3000 MMBT3904 NXP OPT E B C R3000 1K OPT C3004 4 7uF 10V HEAD_PHONE L3001 HEAD_PHONE 5 6uH L3000 HEAD_...

Page 37: ...YMBOL MARK OF THE SCHEMETIC RS232C_MSTAR_DEBUG_4P 2013 04 30 40 L14_S7LR M1A PM_RXD 3 5V_ST R4001 100 R4000 100 P4000 12507WS 04L RS232C_DEBUG_4P 1 VCC 2 PM_RXD 3 GND 4 RM_TXD 5 GND PM_TXD JP_GND3 RGB_DDC_SCL JP_GND4 RGB_DDC_SDA JP_GND1 JP_GND2 P4001 12505WS 04A00 MSTAR_DEBUG_4P 1 2 3 4 5 RS 232C 4PIN MSTAR DEBUG 4PIN RS 232C 4PIN MSTAR DEBUG 4PIN Copyright 2014 LG Electronics Inc All rights reser...

Page 38: ...08 100 Digital Eye R4600 3 3K R4607 1K Digital Eye C4603 0 1uF 16V KEY_CAP KEY1 3 5V_ST R4601 100 C4601 1000pF 50V KEY2 VA4600 LED_R_Zener R4604 10K 1 C4604 100pF 50V R4605 1K Digital Eye SENSOR_SDA 3 3V_Normal P4601 12507WR 08L OPT 1 2 3 4 5 6 7 8 9 C4602 0 1uF 16V KEY_CAP L4600 BLM18PG121SN1D C4605 18pF 50V Digital Eye 3 5V_ST IR R4609 100 Digital Eye 3 5V_ST R4606 1 8K SENSOR_SCL P4600 12507WR ...

Page 39: ...94 H19 LDE GPIO195 G20 LHSYNC GPIO196 G19 LVSYNC GPIO197 G21 UART2_RX GPIO69 J17 UART2_TX GPIO70 J16 UART3_TX GPIO52 E8 UART3_RX GPIO53 D7 GPIO46 CTS U6 GPIO47 RTS V6 UART1_TX GPIO48 K15 UART1_RX GPIO49 L16 ET_TX_EN GPIO63 H5 ET_RXD 0 GPIO65 K5 ET_MDC GPIO66 K4 ET_MDIO GPIO67 H6 ET_RXD 1 GPIO68 L5 PCMADR 0 NF_AD 0 GPIO130 U17 PCMADR 1 NF_AD 1 GPIO129 R18 PCMADR 2 NF_AD 2 GPIO127 V17 PCMADR 3 NF_AD...

Page 40: ... AVDD_NODIE P8 AVDD_PLL K9 AVDD3P3_DMPLL R5 AVDDL_MOD P11 DVDD_DDR_1 C7 DVDD_DDR_2 M13 DVDD_NODIE R6 DVDD_RX_1_1 A7 DVDD_RX_1_2 M12 DVDD_RX_2_1 B7 DVDD_RX_2_2 M14 VDDC_1 N11 VDDC_2 N12 VDDC_3 N13 VDDC_4 N14 VDDC_5 N15 VDDC_6 P12 VDDC_7 P13 VDDC_8 P14 VDDP L9 AVDD5V_MHL AA10 IC101 1 LGE2131 M1A_128M M1A_128M AUVRM U3 GND_1 A6 GND_2 A13 GND_3 A15 GND_4 A18 GND_5 B12 GND_6 B14 GND_7 B16 GND_8 B17 GND...

Page 41: ...LTM 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 21 SCLK 22 SDIN 23 SDA 24 SCL 25 RESET 26 STEST 27 DVDD 28 DVSS 29 GND 30 AGND 31 VREG 32 GVDD_OUT 33 BST_D 34 PVDD_CD_1 35 PVDD_CD_2 36 OUT_D 37 PGND_CD_1 38 PGND_CD_2 39 OUT_C 40 NC_3 41 NC_4 42 BST_C 43 BST_B 44 NC_5 45 NC_6 46 OUT_B 47 PGND_AB_1 48 PGND_AB_2 49 EP C5614 0 1uF 3 3V_Normal SPK_...

Page 42: ...HAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC MHL_SW_AND 2013 09 01 L14_M1A 58 MHL_5V_EN MHL_OCP_EN MHL_CD_SENSE 3 3V_Normal IC5801 74LVC1G08GW MHL_SW_AND_GATE 3 GND 2 A 4 Y 1 B 5 VCC L14 MHL SW AND GATE Copyright 2014 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 43: ......

Search results

Summary of Contents for 55LB5900

Reviews:

Related manuals for 55LB5900

Brands by name

Popular brands

LG 55LB5900, Service Manual

Search results

Summary of Contents for 55LB5900

Reviews:

Related manuals for 55LB5900

Brands by name

Popular brands