LG 42LA8600 Service Manual Download Page 101

Page: 101 / 124

Contents of LCD TV Standard Repair Process Detail Technical Manual

No.

Error symptom

Content

Page

Remarks

B. Power error_ No power

Check front display LED

A17

Check power input Voltage & ST-BY 3.5V

A18

B. Power error_Off when on, off while
viewing

POWER OFF MODE checking method

A19

C. Audio error_ No audio/Normal video

Checking method in menu when there is no
audio

A20

Voltage and speaker checking method when
there is no audio

A21

D. Function error

Remote controller operation checking method

A22

Motion Remote operation checking method

A23

Wifi operation checking method

A24

Camera operation checking method

A25

E. Etc

Tool option changing method

A26

Continued from previous page

Only for training and service purposes

LGE Internal Use Only

Summary of Contents for 42LA8600

Page 1: ...600 42LA8600 TA 42LA860Y 42LA860Y TA 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: ...ight LG Electronics Inc All rights reserved Only for training and service purposes CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SERVICING PRECAUTIONS 4 SPECIFICATION 5 ADJUSTMENT INSTRUCTION 13 EXPLODED VIEW 21 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: ...ation EMC CE IEC 4 Model General Specification No Item Specification Remarks 1 Market Asia Oceania Africa Middle East PAL DVB Market DTV Analog DTV Region Australia NewZealand AU Singapore SG Malaysia MY Vietnam VN South Africa ZA Iran IR Israel IL 2 Broadcasting system Digital DVB T Analog PAL BG DK I I SECAM DK BG I Australia India only PAL BG B 3 Receiving system Digital COFDM QAM Analog Upper ...

Page 7: ...p 31 50 60 00 27 027 SDTV 480P 6 720 576p 31 25 50 00 27 000 SDTV 576P 50Hz 7 1280 720 44 96 59 94 74 176 HDTV 720P 8 1280 720 45 00 60 00 74 250 HDTV 720P 9 1280 720 37 50 50 00 74 25 HDTV 720P 50Hz 10 1920 1080 28 125 50 00 74 250 HDTV 1080I 50Hz 11 1920 1080 33 72 59 94 74 176 HDTV 1080I 12 1920 1080 33 75 60 00 74 25 HDTV 1080I 13 1920 1080 26 97 23 976 63 296 HDTV 1080P 14 1920 1080 27 00 24 ...

Page 8: ... 525I Spec out but display 2 720 480 15 75 60 00 13 514 SDTV DVD 480I 525I 3 720 576 15 625 50 00 13 500 SDTV DVD 576I 625I 50Hz 4 720 480 31 47 59 94 27 SDTV 480P 5 720 480 31 5 60 00 27 027 SDTV 480P 6 720 576 31 25 50 00 27 SDTV 576P 7 1280 720 44 96 59 94 74 176 HDTV 720P 8 1280 720 45 60 00 74 25 HDTV 720P 9 1280 720 37 5 50 00 74 25 HDTV 720P 10 1920 1080 28 125 50 00 74 25 HDTV 1080I 11 192...

Page 9: ...5 1920 1080 27 00 24 00 74 25 HDTV 1080P 2D to 3D Side by Side half Top Bottom Checkerboard 6 1920 1080 28 12 25 00 74 25 HDTV 1080P 2D to 3D Side by Side half Top Bottom Checkerboard 7 1920 1080 33 75 30 00 74 25 HDTV 1080P 2D to 3D Side by Side half Top Bottom Checkerboard 8 1920 1080 67 50 60 00 148 5 HDTV 1080P 2D to 3D Side by Side half Top Bottom Checkerboard Single Frame Sequential Row Inte...

Page 10: ...ary HDTV 720P 8 1280 720 90 59 94 60 148 5 4 Frame packing Line alternative Side by side Full Primary HDTV 720P HDTV 720P HDTV 720P 9 1920 1080 33 72 33 75 59 94 60 74 17 74 25 5 Top and Bottom Side by side half Secondary HDTV 1080I Primary HDTV 1080I 10 1920 1080 67 50 59 94 60 148 5 5 Frame packing Field alternative Side by side Full Primary HDTV 1080I HDTV 1080I HDTV 1080I 11 1920 1080 28 125 5...

Page 11: ...HDTV 720P 2D to 3D Side by Side half Top Bottom 3 1280 720 44 96 59 94 74 176 HDTV 720P 2D to 3D Side by Side half Top Bottom 4 1920 1080 33 75 60 00 74 25 HDTV 1080I 2D to 3D Side by Side half Top Bottom 5 1920 1080 33 72 59 94 74 176 HDTV 1080I 2D to 3D Side by Side half Top Bottom 6 1920 1080 28 12 50 74 25 HDTV 1080I 2D to 3D Side by Side half Top Bottom 7 1920 1080 67 500 60 148 50 HDTV 1080P...

Page 12: ...B Input 3D 3D Supported mode manually 3D supported mode manually automatically 6 DLNA Input 3D 3D Supported mode manually 3D supported mode manually automatically Remark 3D Input mode No Side by Side Top Bottom Checker board Single Frame Sequential Frame Packing Line Interleaving Column Interleaving 1 R L R LLLLL L R L No Resolution H freq kHz V freq Hz Pixel clock MHz Proposed 3D input proposed m...

Page 13: ...is needed to find the optimum black level and gain in Analog to Digital device and to compensate RGB deviation 3 1 2 Equipment Condition 1 USB to RS 232C Jig 2 MSPG 925 Series Pattern Generator MSPG 925FA pattern 65 Resolution 480i Comp1 1080P Comp1 Pattern Horizontal 100 Color Bar Pattern Pattern level 0 7 0 1 Vp p Image 3 1 3 Adjustment 1 Adjustment method Using RS 232 adjust items in the other ...

Page 14: ...4 1 Equipment setting 1 Play the LAN Port Test PROGRAM 2 Input IP set up for an inspection to Test Program IP Number 12 12 2 2 3 4 2 LAN PORT inspection PING TEST 1 Play the LAN Port Test Program 2 Connect each other LAN Port Jack 3 Play Test F9 button and confirm OK Message 4 Remove LAN cable 3 5 Model name Serial number Download 3 5 1 Model name Serial number D L Press Power on key of service re...

Page 15: ...4 1 3 Download method 1 Press ADJ key on the Adjustment remote control then select 12 EDID D L By pressing Enter key enter EDID D L menu 2 Select Start button by pressing Enter key HDMI1 HDMI2 HDMI3 HDMI4 RGB are writing and display OK or NG 4 2 4 EDID DATA Reference HDMI1 HDMI4 In the data of EDID bellows may be different by Input mode ⓐ Product ID ⓑ Serial No Controlled on production line ⓒ Mont...

Page 16: ...of sent data A Acknowledge Ex Send JA_00_DD Ack A_00_okDDX RS 232C Command used during auto adjustment 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01 10 01 17 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26 20 0F 50 54 A1 8 00 31 40 45 40 61 40 71 40 81 80 30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C 40 45 00 40 84 63 00 00 1E 66 21 50 B0 51 00 1B 30 50 40 70 36 ...

Page 17: ... B Gain Adjust two modes Medium Warm Fix the one of R G B gain to 192 default data and decrease the others If internal pattern is not available use RF input In EZ Adj menu 7 White Balance you can select one of 2 Test pattern ON OFF Default is inner ON By selecting OFF you can adjust using RF signal in 216 Gray pattern Adjustment condition and cautionary items 1 Lighting condition in surrounding ar...

Page 18: ...3 313 329 1 0 5 280 285 294 308 319 340 2 6 10 276 280 290 303 315 335 3 11 20 272 275 286 298 311 330 4 21 30 269 272 283 295 308 327 5 31 40 267 268 281 291 306 323 6 41 50 266 265 280 288 305 320 7 51 80 265 263 279 286 304 318 8 81 119 264 261 278 284 303 316 9 Over 120 264 260 278 283 303 315 Aging time Min Cool Medium Warm X y x y x y 271 270 285 293 313 329 1 0 2 281 287 295 310 320 342 2 3...

Page 19: ...then select green key 3 Don t wear a 3D Glasses Check the picture like below 4 9 Option selection per country 4 9 1 Overview Option selection is only done for models in AJ JA IL 4 9 2 Method 1 Press ADJ key on the Adjustment remote control then select Country Group Menu 2 Depending on destination select Country Group Code or Country Group then on the lower Country option select US CA MX Selection ...

Page 20: ... 1 second TEST POINT GND TEST POWER CORD GND SIGNAL CABLE METAL GND Internal Pressure TEST POWER CORD GND LIVE NEUTRAL LEAKAGE CURRENT At 0 5 mArms 6 Audio Measurement condition 1 RF input Mono 1 KHz sine wave signal 100 Modulation 2 CVBS Component 1 KHz sine wave signal 0 5 Vrms 3 RGB PC 1 KHz sine wave signal 0 7 Vrms 7 USB S W download Service only 1 Put the USB Stick to the USB socket 2 Automa...

Page 21: ...VIEW Many electrical and mechanical parts in this chassis have special safety related 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 X RADIATION Shock Fire or other Hazards Do not modify the original design without permission...

Page 22: ...UART0_RXD AU12 UART0_TXD AT12 UART1_RXD AU13 UART1_TXD AT13 UART1_RTS AP12 UART1_CTS AR12 SPI_CS0 GPIO36 AE35 SPI_DO0 GPIO38 AE36 SPI_DI0 GPIO39 AF36 SPI_SCLK0 GPIO37 AF35 SPI_CS1 AG34 SPI_DO1 AF33 SPI_DI1 AG33 SPI_SCLK1 AG32 SCL0 GPIO66 AR15 SDA0 GPIO65 AP15 SCL1 GPIO64 AR16 SDA1 GPIO79 AP16 SCL2 GPIO78 AP17 SDA2 GPIO77 AR17 SCL3 AP6 SDA3 AR6 SCL4 AH32 SDA4 AJ33 SCL5 AH34 SDA5 AH33 CAM_CE1_N F33 ...

Page 23: ...ND_1 A27 GND_2 B5 GND_3 C5 GND_4 C26 GND_5 C27 GND_6 D5 GND_7 D26 GND_8 E5 GND_9 E6 GND_10 E7 GND_11 E8 GND_12 E22 GND_13 E23 GND_14 E26 GND_15 F7 GND_16 F8 GND_17 F22 GND_18 F23 GND_19 F24 GND_20 F25 GND_21 F26 GND_22 F27 GND_23 F31 GND_24 G7 GND_25 G8 GND_26 G9 GND_27 G10 GND_28 G11 GND_29 G12 GND_30 G13 GND_31 G14 GND_32 G15 GND_33 G16 GND_34 G17 GND_35 G18 GND_36 G19 GND_37 G20 GND_38 G21 GND_...

Page 24: ...5 BUF_OUT2 U14 REFT U7 REFB V6 ADC1_COM V7 ADC2_COM U10 ADC3_COM V12 SC1_SID T5 SC1_FB T6 PB1_IN U8 Y1_IN V8 SOY1_IN V9 PR1_IN U9 PB2_IN V10 Y2_IN U11 SOY2_IN V11 PR2_IN U12 AAD_ADC_SIF H18 AAD_ADC_SIFM H17 AUDA_VBG_EXT P2 AUDA_OUTL N1 AUDA_OUTR N2 AUD_SCART_OUTL N3 AUD_SCART_OUTR P1 AUAD_L_CH4_IN P3 AUAD_R_CH4_IN R1 AUAD_L_CH3_IN R2 AUAD_R_CH3_IN T1 AUAD_L_CH2_IN U2 AUAD_R_CH2_IN U3 AUAD_L_CH1_IN...

Page 25: ...5 A2 DQU6 B8 DQU7 A3 VREFCA M8 VREFDQ H1 ZQ L8 VDD_1 B2 VDD_2 D9 VDD_3 G7 VDD_4 K2 VDD_5 K8 VDD_6 N1 VDD_7 N9 VDD_8 R1 VDD_9 R9 VDDQ_1 A1 VDDQ_2 A8 VDDQ_3 C1 VDDQ_4 C9 VDDQ_5 D2 VDDQ_6 E9 VDDQ_7 F1 VDDQ_8 H2 VDDQ_9 H9 NC_1 J1 NC_2 J9 NC_3 L1 NC_4 L9 A14 T7 VSS_1 A9 VSS_2 B3 VSS_3 E1 VSS_4 G8 VSS_5 J2 VSS_6 J8 VSS_7 M1 VSS_8 M9 VSS_9 P1 VSS_10 P9 VSS_11 T1 VSS_12 T9 VSSQ_1 B1 VSSQ_2 B9 VSSQ_3 D1 VS...

Page 26: ...PCM_IOWR CI_ADDR 4 R704 10K OPT CI_TS_DATA 0 PCM_IRQA CI_CD1 CI_IN_TS_VAL CI_TS_VAL CI_ADDR 1 CI_ADDR 11 PCM_INPACK CI_VS1 CI_TS_DATA 3 5V_CI_ON CI_TS_DATA 5 R710 0 OPT CI_ADDR 9 R709 10K CI R718 0 OPT CI_TS_DATA 7 5V_CI_ON CI_CD2 R711 10K OPT C706 0 1uF CI CI_DATA 0 7 R707 10K OPT CI_TS_DATA 6 R708 10K OPT CI_TS_DATA 4 CI_TS_SYNC C702 0 1uF CI R712 10K OPT CI_TS_DATA 2 CI_VS1 5V_CI_ON R719 10K OP...

Page 27: ... 180pF 50V IC2305 TPS54319TRE DCDC_TI 1 VIN_1 3 GND_1 7 COMP 9 SS TR 10 PH_1 11 PH_2 12 PH_3 13 BOOT 14 PWRGD 15 EN 16 VIN_3 5 AGND 8 RT CLK 6 VSENSE 4 GND_2 2 VIN_2 17 EP GND 3 5V_ST 3 5V_ST R2314 10K 24V PANEL_CTL R2313 1 3K 12V L2320 3 3uH NR5040T3R3N D2300 40V B540C PANEL_VCC PWM_DIM2 1 0V_VDD R2327 1 5 6K 1 PD_20V RL_ON C2306 0 1uF 50V R2326 1 2K 1 PD_ 12V C2330 22uF 10V POWER_ON OFF2_2 C2320...

Page 28: ...A21 11 P70 KR0 SCK21 SCL21 12 P30 INTP3 RTC1HZ SCK11 SCL11 13 P50 INTP1 SI11 SDA11 14 P51 INTP2 SO11 15 P17 TI02 TO02 16 P16 TI01 TO01 INTP5 17 P15 PCLBUZ1 SCK20 SCL20 18 P14 RXD2 SI20 SDA20 19 P13 TXD2 SO20 20 P12 SO00 TXD0 TOOLTXD 21 P11 SI00 RXD0 TOOLRXD SDA00 22 P10 SCK00 SCL00 23 P146 24 P147 ANI18 25 P27 ANI7 26 P26 ANI6 27 P25 ANI5 28 P24 ANI4 29 P23 ANI3 30 P22 ANI2 31 P21 ANI1 AVREFM 32 P...

Page 29: ... 5 1 16W R3238 10 D2 _HDMI2 D0 _HDMI3 JK3203 51U019S 312HFN E R B LG EAG62611204 HDMI_FREEPORT 14 NC 13 CE_REMOTE 5 D1_GND 20 BODY_SHIELD 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 DDC_SDA_1 5V_HDMI_3 D2 _HDMI3 D2 _HDMI4 D2 _HDMI1 3 5V_ST D0 _HDMI2 DDC_SCL_3 D1 _HDMI2 D3200 A2 C A1 VA3204 ESD_HDMI R3249 3 9K OPT R3229 47K...

Page 30: ... SOC_TX C3401 18pF OPT R3407 100 1 16W 5 R3408 100 1 16W 5 R3409 100 1 16W 5 HP_OUT R3403 330K R3404 150 1 10W 5 R3405 150 1 10W 5 C3402 47pF 50V JK3400 PEJ038 4G6 JACK_PARK EAG61030012 3 M3_DETECT 4 M4 5 M5_GND 1 M1 6 M6 JK3403 PEJ038 3B6 EAG61030009 JACK_PARK 3 DETECT 4 L 5 GND 1 R JK3402 PEJ038 4Y6 JACK_PARK EAG61030011 3 M3_DETECT 4 M4 5 M5_GND 1 M1 6 M6 JK3401 JSTIB15 C GND B VCC A VIN 4 SHIE...

Page 31: ...MOTECH CO LTD Q4000 MMBT3904 NXP LOGO_LIGHT E B C L4001 BLM18PG121SN1D R4001 10K LOGO_LIGHT WIFI_DP R4006 100 3 5V_WOL WIFI_DM R4007 100 R4009 10K 5 M_REMOTE_CTS M_REMOTE_RTS LOGO_LIGHT_WAFER R4012 100 LOGO_LIGHT_WAFER P4000 SMAW200 H12S2 NON_OLED WOL RTS TX USB_DM CTS GND 3 3V GND RX 3 5V_WOL RESET USB_DP C4008 47pF 50V C4009 47pF 50V P4003 SMAW200 H16S2 OLED_DEV 14 9 4 13 8 3 12 7 2 16 11 6 1 15...

Page 32: ...1 CAMERA C4208 0 1uF CAMERA 3 3V_NORMAL USB2_HUB_IC_IN_DP USB_CAMERA_DM R4204 0 CAMERA CAM_SLIDE_DET C4211 33pF 50V CAMERA R4211 33 CAMERA 3 3V_NORMAL 3 5V_ST RST_HUB USB_CAMERA_DP CAM_CTL R4212 33 CAMERA R4219 10K OPT USB2_HUB_IC_IN_DM C4214 33pF 50V CAMERA R4205 0 CAMERA USB_DM3 R4218 10K AUD_LRCK R4217 10K 1 16W 5 CAMERA R4216 100K CAMERA USB_DM3 R4210 0 CAMERA C4201 0 1uF CAMERA AUD_LRCH P4200...

Page 33: ...4400 RCLAMP0502BA C4500 0 1uF 16V USB3_DP USB3_TX0P 5V_USB_2 5V_NORMAL USB_OCD2 USB_CTL2 R4302 10K USB_CTL3 C4302 0 1uF 16V 3 3V_NORMAL 5V_USB_3 USB_OCD3 R4301 10K C4337 10uF 10V C4301 10uF 10V USB_DM2 D4300 RCLAMP0502BA 5V_USB_2 USB_DP3 5V_USB_3 JK4300 3AU04S 305 ZC LG 1 2 3 4 5 USB_DM3 USB_DP2 D4302 RCLAMP0502BA C4322 10uF 10V C4310 10uF 10V JK4302 3AU04S 305 ZC LG 1 2 3 4 5 IC4306 TPS2066CDGNR ...

Page 34: ...3 AUDIO_L_OUT 4 AUDIO_GND 5 B_GND 6 AUDIO_L_IN 7 B_OUT 8 ID 9 G_GND 10 G_OUT 11 R_GND 12 R_OUT 13 RGB_IO 14 SYNC_GND 15 SYNC_OUT 16 SYNC_IN 17 COM_GND 18 AV_DET 19 SHIELD C4803 4700pF EU SC_FB VA4802 5 6V EU L4801 BLM18PG121SN1D EU SC_B SC_R C4804 0 1uF EU SC_ID SC_R_IN R4801 10K EU VA4806 5 6V EU VA4809 5 6V EU SC_L_IN C4802 4700pF EU SC_DET VA4801 5 6V EU DTV MNT_R_OUT C4800 1000pF 50V EU L4800 ...

Page 35: ...2 TD 3 P3 TD 4 P4 RD 5 P5 RD 6 P6 CT 7 P7 8 P8 12 SHIELD 9 P9 11 P11 10 P10 GND D1 YL_C D2 YL_A D3 GN_C D4 GN_A EPHY_RDP LAN_JACK_POWER VA5100 5 5V C5100 0 1uF 16V EPHY_TDN JK5100 1 TLA 6T764 LAN_TDK 1 R1 2 R2 3 R3 4 R4 5 R5 6 R6 7 R7 8 R8 12 SHIELD 9 R9 11 R11 10 R10 GND D1 YL_C D2 YL_A D3 GN_C D4 GN_A C5103 0 01uF 50V EPHY_TDP VA5103 5 5V C5101 0 01uF 50V C5102 0 1uF 16V VA5101 5 5V EPHY_RDN 50 ...

Page 36: ...OL R5202 1M OPT R5206 33 3 5V_ST Q4300 MMBT3904 NXP E B C C4325 4 7uF 10V R5212 1 5K 1 16W 1 R5204 2 49K 1 EPHY_RDP C5212 0 1uF OPT EPHY_RDN EPHY_TDP IC5200 RTL8201F VB CG 1 RSET 3 MDI 0 7 AVDD33_1 9 RXD 0 10 RXD 1 11 RXD 2 INTB 12 RXD 3 CLK_CTL 13 RXC 14 DVDD33 15 TXC 16 TXD 0 17 TXD 1 18 TXD 2 19 TXD 3 20 TXEN 21 PHYRSTB 22 MDC 23 MDIO 24 LED0 PHYAD 0 PMEB 25 LED1 PHYAD 1 26 CRS CRS_DV 27 COL 28...

Page 37: ...610 0 1uF 16V C5629 330pF 50V R5610 470 3 3V_NORMAL R5606 33 24V_AMP WOOFER_MUTE C5616 0 033uF 50V C5637 2200pF 50V IC5600 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 21 SCLK 22 SDIN 23 SDA 24 SCL 25 RESET 26 STEST 27 DVDD 28 DVSS 29 GND 30 AGND 3...

Page 38: ...O C5706 0 1uF 16V WOOFER C5736 2200pF 50V WOOFER C5724 0 033uF 50V WOOFER C5703 10uF 10V WOOFER C5738 2200pF 50V WOOFER_STEREO P5700 FW25003_03 DEV_WOOFER_STEREO 1 2 3 R5710 10K OPT C5701 0 1uF 50V WOOFER C57151uF 25V WOOFER C5734 0 1uF 50V WOOFER_STEREO C5714 0 1uF WOOFER IC5700 TAS5733 WOOFER 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...

Page 39: ... MNT_L_OUT R6002 470K OPT Q6000 MMBT3904 NXP EU E B C R6000 2 2K EU 12V C6007 6800pF OPT SCART_AMP_L_FB R6010 470K OPT C6000 1uF 25V EU R6004 33K EU DTV MNT_R_OUT C6002 6800pF OPT Q6001 MMBT3904 NXP EU E B C L6000 EU SCART_Rout SCART_AMP_R_FB IC6000 AZ4580MTR E1 EU 3 IN1 2 IN1 4 VEE 1 OUT1 5 IN2 6 IN2 7 OUT2 8 VCC R6011 2 2K EU Q6002 RT1P141C T112 EU_SCART_MUTE_ISAHAYA E B C R6014 1K EU R6013 1K E...

Page 40: ..._OUT R6103 33K HP_OUT_MTK C6102 1uF 10V HP_OUT R6105 4 7K HP_OUT C6103 1uF 10V HP_OUT HP_ROUT_MAIN L6100 120 ohm HP_OUT BLM18PG121SN1D C6104 180pF HP_OUT_MTK R6106 43K 1 HP_OUT C6107 0 1uF 16V HP_OUT C6109 180pF HP_OUT_MTK R6102 33K HP_OUT_MTK HP_ROUT_AMP C6104 1 18pF HP_OUT_H13 C6109 1 18pF HP_OUT_H13 C6108 10pF 50V HP_OUT C6106 10pF 50V HP_OUT IC6100 TPA6138A2 3 OUTR 2 INR 4 GND_1 1 INR 6 VSS 5 ...

Page 41: ...ANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 5V_CI_ON 5V_NORMAL R6217 100 CI C6210 1uF 25V CI R6218 10K CI PCM_5V_CTL IC6200 AP2151WG 7 CI 3 FLG 2 GND 4 EN 1 OUT 5 IN R6219 10K CI 62 CI SLOT 2011 10 31 CI POWER ENABLE CONTROL Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 42: ...4 CGND 15 CLK 16 RST 17 VCC 18 PORADJ 19 CMDVCC 20 RSTIN 21 VDD 22 GND 23 OFF 24 XTAL1 25 XTAL2 26 I OUC 27 AUX1UC 28 AUX2UC R6309 22 JAPAN 3 3V_NORMAL C6300 0 1uF 16V JAPAN C6303 0 1uF 16V JAPAN L6300 BLM18PG121SN1D JAPAN R6312 10K JAPAN R6311 22 JAPAN SMARTCARD_DATA SD_EMMC_CLK C6307 0 33uF 16V JAPAN 5V_NORMAL R6303 OPT 3 3V_NORMAL 3 3V_NORMAL R6304 2 7K JAPAN R6306 OPT R6314 1K JAPAN C6306 0 1u...

Page 43: ... 3V_TU FE_DEMOD1_TS_VAL L6507 BLM18PG121SN1D TU_Q W_KR BR TW CO JP AU Q6501 MMBT3906 NXP TU_A_GLOBAL_6 7 E B C I2C_SCL4_TU R6513 10 TU_Q I2C_SCL4 I2C_SDA4 3 3V_TU R6508 1 1K 5 TU_N M W_CN TW BR CO C6503 0 1uF 16V TU_S N Q_T US KR TW AU R6502 10 TU_N M S2_RESET_TU R6510 33 NON_TU_W_BR TW CO FE_DEMOD1_TS_DATA 3 LNB_OUT R6531 1 C6531 0 1uF LNB_TX S2_RESET 1 23V_D_Demod C6516 0 1uF 16V TU_N M Q W_KR C...

Page 44: ...B TU_W_JP 1 5V_OR_ 3 3V_SPLITTER 2 RESET_T1 3 SCL_T 4 SDA_T 5 3 3V_T1 6 NC_1 7 1 8V_T1 8 NC_2 9 NC_3 10 NC_4 11 NC_5 12 3 3V_T2 13 1 8V_T2 28 GND_2 29 GND_3 30 B5 1 23V 31 D_RESET 36 LNB 32 B6 3 3V 33 NC_6 34 D_SCL 35 D_SDA GND_4 37 GND_5 38 GND_6 39 TS1_ERROR 40 TS1_SYNC 41 TS1_VALID 42 TS1_MCLK 43 TS1_DATA 44 TS2_ERROR 45 TS2_SYNC 46 TS2_VALID 47 TS2_MCLK 48 TS2_DATA 49 NC_7 50 RESET_T2 51 LNA_C...

Page 45: ...V LNB_SX34 A_GND A_GND R6903 39K 1 16W 1 LNB A_GND D6903 40V LNB_SMAB34 D6904 40V LNB_SMAB34 LNB_TX C6904 0 1uF 50V LNB C6908 0 1uF LNB C6909 10uF 25V LNB C6912 0 1uF LNB C6902 0 22uF 25V LNB I2C_SCL4 C6900 18pF LNB C6901 33pF LNB IC6900 A8303SESTR T LNB 1 VCP 3 NC_1 7 SCL 9 ADD 10 TONECTRL 11 TCAP 12 ISET 13 VREG 14 GND 15 VIN 16 LX 17 GNDLX 18 NC_2 19 NC_3 20 BOOST 5 TDO 8 SDA 6 IRQ 4 TDI 2 LNB ...

Page 46: ...201 FI RE51S HF J R1500 LVDS 1 NC 2 NC 3 NC 4 NC 5 NC 6 NC 7 LVDS_SEL 8 NC 9 NC 10 L DIM_ENABLE 11 GND 12 RA0N 13 RA0P 14 RA1N 15 RA1P 16 RA2N 17 RA2P 18 GND 19 RACLKN 20 RACLKP 21 GND 22 RA3N 23 RA3P 24 RA4N 25 RA4P 26 GND 27 BIT_SEL 28 RB0N 29 RB0P 30 RB1N 31 RB1P 32 RB2N 33 RB2P 34 GND 35 RBCLKN 36 RBCLKP 37 GND 38 RB3N 39 RB3P 40 RB4N 41 RB4P 42 GND 43 GND 44 GND 45 GND 46 GND 47 NC 48 VLCD 49...

Page 47: ...N THE SYMBOL MARK OF THE SCHEMETIC I2C_SDA2 I2C_SCL2 R7401 10K L DIM_OUT_PULL_DOWN L DIM0_VS 3 3V_NORMAL L DIM0_MOSI L DIM0_SCLK P7400 12507WR 08L L DIM_OUT 1 2 3 4 5 6 7 8 9 R7400 10K OPT R7411 33 L DIM_OUT_I2C R7412 33 L DIM_OUT_I2C R7407 0 OPT R7408 0 OPT R7403 4 7K LOCAL DIMMING 2012 09 14 LOCAL DIMMING 1 To LED DRIVER BSD NC4_H074 HD Copyright 2013 LG Electronics Inc All rights reserved Only ...

Page 48: ...23 10uF 25V R7761 10K OPT VST 3 3V_NORMAL C7739 0 1uF 50V VCOM1 C7748 1uF 25V GMA15 TXB1N IC7700 TPS65178RSLR EPI 1 OUT4 2 SWB4 3 RST 4 OUT1 5 OUT2 6 SWB2 7 PGND2 8 SWB1_1 9 SWB1_2 10 NC 11 PVINB1_1 12 PVINB1_2 13 AVIN 14 PVINB3 15 SWB3 16 OUT3 17 PGND3 18 PGND_1 19 PGND_2 20 SW_1 21 SW_2 22 SWI 23 SWO 24 AGND 25 SS 26 COMP 27 SCL 28 SDA 29 VL 30 TCOMP 31 CTRLP 32 VGH 33 SWP 34 SWN 35 VGL 36 CTRLN...

Page 49: ...RES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC C7923 10uF 25V C7928 10uF 25V C7926 10uF 25V C7930 10uF 25V VDD C7924 10uF 25V VDD_EPI EPI_CAP 2012 09 14 locate different direction for each locate different direction for each BSD NC4_H079 HD Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 50: ...VSSQ_3 N5 VSSQ_4 P4 VSSQ_5 P6 NC_1 A1 NC_2 A2 NC_3 A8 NC_4 A9 NC_5 A10 NC_6 A11 NC_7 A12 NC_8 A13 NC_9 A14 NC_10 B1 NC_11 B7 NC_12 B8 NC_13 B9 NC_14 B10 NC_15 B11 NC_16 B12 NC_17 B13 NC_18 B14 NC_19 C1 NC_20 C3 NC_22 C7 NC_23 C8 NC_24 C9 NC_25 C10 NC_26 C11 NC_27 C12 NC_28 C13 NC_29 C14 NC_30 D1 NC_31 D2 NC_32 D3 NC_33 D4 NC_34 D12 NC_35 D13 NC_36 D14 NC_37 E1 NC_38 E2 NC_39 E3 NC_40 E12 NC_41 E13...

Page 51: ......

Page 52: ...013 LED LCD TV Engineering guide Applicable Model High end Platform XXLA860 T XXLA790 T Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 53: ...com for Key IR Logo sensing PMIC Audio AMP xxLA860x Tx Key IR Logo Front Spk To module 5 5 EPI Wafer Chassis LB34D PCB P No EAX65040104 3 6 Level shifter WIFI BT 1 Built in Camera 7 7 Main processor_analog LG1152A Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 54: ...2 3 4 Micom for Key IR Logo sensing PMIC Audio AMP xxLA790x Tx Key IR Logo Front Spk To module 5 5 EPI Wafer Chassis LB34D PCB P No EAX65040104 3 6 Level shifter WIFI BT 1 7 7 Main processor_analog LG1152A Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 55: ...n R M Remote_Rx Tx Audio AMP OPTIC SPK H P Line out H P Audio L R SPDIF I2S DDR3 4Gb 2 1600 4Gb 2 1600 8 eMMC 4GB 1 HDMI_CEC USB 3 0 USB 2 0 USB 2 0 USB 2 0 USB_W iFi PHY RMII LAN WOL WOW H P AMP H13 LG1154D FRC TCON Logo Light HDMI4 MHL 1A OCP 1A OCP 1A X TAL 24MHZ Woofer HDMI1 SPDIF_OUT_ARC PMIC LEVEL SHIFTER EPI CVBS SIF IF TS Copyright 2013 LG Electronics Inc All rights reserved Only for train...

Page 56: ...DA1 GPIO79 I2C_SDA_MICOM_SOC I2C_SCL_MICOM_SOC 1 2 H13 LG1154D 24 SCL 23 SDA AR17 SDA2 GPIO77 AP17 SCL2 GPIO78 I2C_SDA2_SOC I2C_SCL2_SOC 3 3V_NOR 3 3k Ω 3 3k Ω 33 Ω 33 Ω P60 SCLA0 P61 SDAA0 27 28 SCL SDA D_SCL D_SDA AH32 SCL4 AJ33 SDA4 I2C_SDA5 63 62 I2C_SCL5 33 Ω 33 Ω 3 3k Ω 3 3k Ω 3 3V_NOR CSCL CSDA IC102 R1EX24256BSAS0A NVRAM 6 5 33 Ω 33 Ω SCL SDA AH34 SCL5 AH33 SDA5 I2C_SDA6 3 4 I2C_SCL6 33 Ω ...

Page 57: ...H13 D VDD33 H13 D AVDD33 H13 A VDD33 H13 A AVDD33 H13 A VDD_XTAL EMMC VCC EMMC VCCQ TUNER 3 3V_TU H13 D VDD25 H13 D AVDD25 H13 D XTAL_VDDP H13 D HDMI_VQPS H13 A VDD25_CVBS H13 A VDD25_AUD H13 A VDD25_COMP H13 A VDD25_VSB H13 A VDD25_APLL H13 A AVDD33 H13 A VDD_XTAL H13 A SDRAM_VDDQ H13 A AUAD_REF H13 A VDD25_REF 2 5V Normal 1 5A AUDIO AMP PANEL_VCC LNB SCART AMP USB HDMI SW CI Slot 3 Power Block D...

Page 58: ...S_VAL FE_DEMOD1_TS_CLK SD_SERIAL_D0 20 FE_DEMOD1_TS_DATA 0 AM35 TP_DVB_DATA0 S_ 3 3V 12 3 3V_D_Demod 1 23V_D_Demod 1 8_TU 3 3V_TU H13 LG1154AN IF_P IF_N TUNER_SIF TU_CVBS IF_AGC U17 ADC_I_INP V17 ADC_I_INN H18 AAD_ADC_SIF V15 CVBS_IN1 J18 IFAGC ADC_I_INP ADC_I_INN 3 3V_SPLITTER 1 3 3V_TU S_ 1 8V 13 1 8V_TU SD_1 23V_DEMOD 30 SD_ 3 3V_DEMODV 32 3 3V_D_Demod SD_RESET 31 AG5 GPIO9 S2_RESET SD_SCL 34 S...

Page 59: ...2_IN Y2_IN PR2_IN Tuner TU6702 1 TDSQ A651D TU_CVBS TU_CVBS_SOC TUNER_SIF FE_DEMOD1_TS_ERROR SYNC VAL CLK FE_DEMOD1_TS_DATA 0 7 H13 LG1154D AV1_R_IN AUAD_R_CH2_IN AUAD_R_CH2_IN COMP2_Y_IN_SOC COMP2_Y_IN_SOC_SOY COMP1_Y COMP1_Pb COMP2_PB_IN_SOC COMP1_Pr COMP2_PR_IN_SOC CVBS_IN1 AAD_ADC_SIF Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use ...

Page 60: ...OUT_MAIN SIDE_HP_MUTE DACSCK DACLRCK DACLRCH MAIN 4P wafer AUDA_OUTL H13 LG1154 PHY0_ARC_OUT_0 SPDIF_OUT_ARC TUNER_SIF SCL0 SDA0 LPF TPA6138A2 Headphone AMP LPF HEADPHONE LINE OUT Phone Jack LPF AMP_RESET_N Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 61: ...EC_REMOTE HDMI_HPD_2 5V_HDMI_2 HDMI3 CEC_REMOTE HDMI_HPD_3 5V_HDMI_3 HDMI4 CEC_REMOTE HDMI_HPD_4 5V_HDMI_4 H13D IC100 LG1154D TMDS Link 8bits TMDS Link 8bits TMDS Link 8bits TMDS Link 8bits DDC_I2C 2bits DDC_I2C 2bits DDC_I2C 2bits DDC_I2C 2bits MICOM IC3000 R5F100GEAFB CEC_REMOTE SPDIF_OUT_ARC 7 HDMI Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE ...

Page 62: ...VCOM_P N VCOM 17 34 VCOM_LOOP VCOMLFB RFB 16 35 GIP_RST 15 36 14 37 VST DISCHG VGL VGL_I 13 38 TX_LOCKN Z_OUT 1 50 VCC18 H_VDD V core VDD VCC18 H_VDD V core VDD VCC18 H_VDD V core VDD H13 IC100 LG1154D LEVEL SHIFTER IC7701 TPS65198 CTRLN VGL_FB SWN PMIC IC7700 TPS65178RSLR VCC CTRLP VGH_FB SWP VDD VCOM_DYN I2C_SDA2 PMIC_RESET I2C_SCL2 GCLK GST MCLK EO GCLK MCLK EO PANEL_VCC VGL VGH 8 Panel Interfa...

Page 63: ... Pump Controller 6 Ch Gamma Buffer DAC output Vcom reference gain Reset PANEL_VCC VCC18 VCC HVdd Vdd VCOM_P VCOM_N GAM4 5 7 12 14 15 CTRLN SWP SWN CTRLP VCOM_LOOP PMIC_RESET Vcore Level Shift TPS65198 TR Diode TR Diode VGL VGH 9 PMIC Level Shift Bloc Diagram Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 64: ...ceiver M_REMOTE_RX M_REMOTE_TX M_RFModule_RESET UART1_RXD UART1_TXD UART1_RTS UART1_CTS USB2_0_DM USB2_0_DP RENESAS MICOM UART0_RXD UART0_TXD SOC_TX SOC_RX USB_DP3 5V_USB_3 USB_CTL3 USB_OCD3 USB2_1_DM0 USB2_1_DP0 GPIO93 GPIO92 USB2_2_DM0 USB2_2_DP0 USB3 USB_DM3 GPIO91 GPIO90 M_REMOTE_CTS M_REMOTE_RTS GPIO13 4Pin debugging Wafer USB3_RX0P USB3_RX0M USB3_TX0P USB3 TX0M Copyright 2013 LG Electronics ...

Page 65: ...XXLA860X TA 1 1 Main PCB 2 PSU 3 WIFI ASSY 4 BT MOTION ASSY 5 IR Logo PCB PCBs 1 2 5 3 4 6 6 Local Key Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 66: ... 2 To Main PCB SPK unit 3 4 BT MOTION ASSY 5 Local Key PCB 1 IR Key PCB IR PCB WIFI ASSY BT MOTION ASSY WIFI ASSY Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 67: ...24Pin Local Dimming Cable Main Module EPI Cable 50 50Pin LED driver PSU IR 8Pin Cable WiFi 6Pin RF 8Pin Cable SPK Cable PCBs Cables 6 1 2 3 1 2 3 4 5 6 4 5 4 RF Assy 5 WIFI Assy Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 68: ...n XXLA790X TA 2 8 7 IR to Local Key 3Pin Cable IR to Logo Assy 4Pin Cable Cables 7 8 PCBs 6 IR Assy 6 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 69: ... y Magic Remote control 1 System 2 Remote Buttons 3 MR13 Block Diagram 4 Function List 5 Pairing Un pairing Method Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 70: ...ng success F W version BD_ADDR to the receiver The receiver sends the pairing success packet to TV directly F W version and BD_ADDR packets are just saved on the receiver The receiver sends F W version or BD_ADDR packet to TV when it is required Motion Data Transmission Period 7 5msec Motion Data gyro accelerometer Voice Data Transmission Period 10msec Voice sampling 16khz 16bit Copyright 2013 LG ...

Page 71: ...C 0x80DC Y Screen RMT Q MENU 0xDE 0x80DE Y CH 0x00 0x8000 Y CH 0x01 0x8001 Y VOL 0x02 0x8002 Y VOL 0x03 0x8003 Y MUTE 0x09 0x8009 Y Logical Buttons AUTO_WAKEUP X 0x800C VOICE_START X 0x800A VOICE_STOP X 0x800D POINT_START X 0x803E POINT_STOP X 0x803F M4 Remote MR13P Remote POWER BACK HOME OK MUTE VOL CH 3D MYAPPS OK VOICE BACK SMART 3D Screen RMT Q MENU MUTE VOL CH POWER LED Copyright 2013 LG Elec...

Page 72: ...Serial F M I2C ch1 I2C ch2 WM8950 Wolfson Voice MIC Knowles I2S 4 mode Only 2 8V LDO uP0108NEC5 28 SC70 Wheel Encoder IR Emitter1 IR Emitter2 Voice Scene IR Codec ADC Bluetooth Receiver BCM20702M BROADCOM Bluetooth 4 0 Antenna Connector X tal 20 MHz 512Kbit Serial Flash UART SPI Bluetooth Remote control Light Control Copyright 2013 LG Electronics Inc All rights reserved Only for training and servi...

Page 73: ... Sensing device tilt Pitch Roll angle RF Micom RF Antenna SDBTPTR3015 Partron Wireless communication X tal 24MHz Partron RF Micom BCM20733A2 Broadcom DC DC Converter TPS61097 TI Battery Boost up Regulator LDO1 uP0108NEC5 28 uPI RF Gyro Accelerometer Power Supply LDO2 uP0108NEC5 28 uPI Audio Codec Mic Power Supply 4 Function list Copyright 2013 LG Electronics Inc All rights reserved Only for traini...

Page 74: ...the remote should blink LED for some time and TV send pairing success packet back to TV When remote try to unpairing it doesn t care about state of receiver stand alone RF Unpairing Press BACK button and SMART button at the same time for 5 sec When remote try to unpairing it doesn t care about state of receiver stand alone After unpairing all pairing information should be erased After unpairing LE...

Page 75: ...lt in Ass y feature 2 Wi Fi built in Ass y specification Introductions of 13Y WIFI built in ass y Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 76: ...er 6pin 1 25mm 3 3V USB DP DN GND USB DP DN DCDC EUP3010 Crystal 20MHz 3 3V 1 2V 3 3V 1 2V Switch DM3030 Antenna 2 4G 5G Antenna 2 4G 5G RX TX RX TX WOL Switch DM3030 Block diagram 48 30 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 78: ...NETFLX 2012 12 08 Contents 1 Widevine 2 HDCP 2 0 NETFLIX 3 DTCP 4 Changed BOM LCD TV LCD TV R D Lab HW1 team Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 79: ...h American CinemaNow Furthermore because the future will be the spread of CP widevine key download for the global model should be applied to production Because operation unique key should be downloaded for Widevine Widevine key dowmload by NSU is impossible Widevine Key Widevine Key is unique data stored TV for using Widevine Copyright 2013 LG Electronics Inc All rights reserved Only for training ...

Page 80: ...cification developed by Intel Corporation to protect digital entertainment across the DVI HDMI interface Why HDCP2 0 HDCP revision 2 0 supports a broader range of wired and wireless interfaces Netflix the services maintain a huge selection of movies and latest releases and offer DVD rentals via mail online streaming 2 HDCP 2 0 NETFLIX Copyright 2013 LG Electronics Inc All rights reserved Only for ...

Page 81: ... entertainment content delivered to a source device via another approved copy protection system such as the DVD Content Scrambling System will be protected by this protection system Three cryptographic Keys Authentication Key which is formed as a result of authentication and used to protect the exchange keys Exchage Key which is used to set up and protect content streams Content Key which is used ...

Page 82: ...ed BOM Changed Item Separate HDCP check box HDCP 2 0 Tx HDCP 2 0 Rx HDCP 1 4 Rx As Was Current Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 83: ...r auto on off 7 8 C Audio error No audio Normal video 8 9 Wrecked audio discontinuation noise 9 10 D Function error Remote control Local switch checking 10 MR13 operating checking 11 11 12 Wifi operating checking 12 13 Camera operating checking 13 14 External device recognition error 14 15 E Noise Circuit noise mechanical noise 15 16 F Exterior error Exterior defect 16 First of all Check whether t...

Page 84: ...ways check record S W Version and White Balance value before replacing the Main Board Replace Main Board Re enter White Balance value Precaution Established date Standard Repair Process Revised date 1 16 LCD TV Error symptom A Video error No video Normal audio A18 A1 A18 A4 A2 First of all Check whether all of cables between board is inserted properly or not Main B D Power B D LVDS Cable Speaker C...

Page 85: ...eplace MAIN B D Y Replace Power Board and repair parts N End Standard Repair Process A Video error No video No audio A18 Established date Revised date 2 16 LCD TV Error symptom 2 2013 03 05 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 86: ...ck Tuner soldering Normal Picture Y N Y Close Y Close By using Digital signal level meter By using Diagnostics menu on OSD Setting Set up Manual Tuning Check the Signal Signal strength Normal over 50 Signal Quality Normal over 50 Normal Picture Y Contact with signal distributor or broadcaster Cable or Air N Normal Picture Y Close N A4 Standard Repair Process Established date Revised date 3 16 LCD ...

Page 87: ...device and cable Y External device Cable normal HDMI error Check external device and cable Replace Main B D Replace Main B D N N A Video error Color error A6 N Y End Replace module Request repair for external device cable Color error Check Test pattern A8 A7 Standard Repair Process Established date Revised date 4 16 LCD TV Error symptom 4 2013 03 05 Copyright 2013 LG Electronics Inc All rights res...

Page 88: ...ecting Jig pattern Generator Set top Box etc N Y Replace Main B D Screen normal Check screen condition by input External Input Component HDMI DVI Request repair for external device Component error HDMI DVI Connect other external device and cable Check normal operation of External Input Component RGB and HDMI DVI by connecting Jig pattern Generator Set top Box etc Replace Main B D Screen normal N Y...

Page 89: ...put of Power B D N Y Normal voltage Replace Main B D Y OK Replace Main B D N Y Normal Check ST BY 3 5V Replace Power B D N Y Normal voltage Replace Power B D Y A17 A18 A18 A18 Standard Repair Process Established date Revised date 6 16 LCD TV Error symptom 6 Stand By Red or Turn Off Operating Turn Off Close 2013 03 05 Copyright 2013 LG Electronics Inc All rights reserved Only for training and servi...

Page 90: ...by REMOTE CONTROL POWEROFF_OFFTIMER Power off by OFF TIMER POWEROFF_SLEEPTIMER Power off by SLEEP TIMER POWEROFF_INSTOP Power off by INSTOP KEY POWEROFF_AUTOOFF Power off by AUTO OFF POWEROFF_ONTIMER Power off by ON TIMER POWEROFF_RS232C Power off by RS232C POWEROFF_RESREC Power off by Reservated Record POWEROFF_RECEND Power off by End of Recording POWEROFF_SWDOWN Power off by S W Download POWEROF...

Page 91: ...air parts Check Speaker disconnection N Y Replace Speaker Replace MAIN Board End C Audio error No audio Normal video A20 A21 A18 Disconnection Established date Revised date 8 16 LCD TV Error symptom Standard Repair Process 8 2013 03 05 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 92: ...and check other external device N Y Normal audio Check and fix external device Replace Power B D N Y Normal voltage Check input signal RF External Input signal Signal normal When RF signal is not received Request repair to external cable ANT provider Y Check audio B Voltage 24V Replace Main B D In case of External Input signal error Check and fix external device Replace Main B D N End Established ...

Page 93: ... of R C Check Repair Cable connection Connector solder Normal operating Check B 3 5V On Main B D A22 Normal Voltage Close N N Check 3 5v on Power B D Replace Power B D or Replace Main B D Power B D don t have problem A18 Check IR Output signal Normal Signal N Y Repair Replace IR B D N A22 Replace Main B D Y A22 Standard Repair Process Established date Revised date 10 16 LCD TV Error symptom 10 Y 2...

Page 94: ...ate 11 16 LCD TV Error symptom Replace MR13 Turn off on the set and press the wheel Press the back key about 5sec If you conduct the loop at 3times change the M4 Y Check the INSTART menu RF Receiver ver is 00 00 Y Check Repair RF assy connection N Down load the Firmware INSTART MENU 14 RF Remocon Test 3 Firmware download Y RF Receiver ver is 00 00 N A23 A4 A4 11 2013 03 05 Close Close Copyright 20...

Page 95: ... N Check the Wifi wafer 1pin Standard Repair Process Established date Revised date 12 16 LCD TV Error symptom 12 Change the Wifi assy Normal Voltage Y Y N Replace Main B D Wi Fi Mac value is NG N A24 A4 A4 A24 2013 03 05 Close Close Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 96: ... Check the Camera wafer P4200 2pin Standard Repair Process Established date Revised date 13 16 LCD TV Error symptom 13 Change the Camera assy Normal Voltage Y Y N Replace Main B D Camera Ver is NG N A25 A4 A4 A25 2013 03 05 Close Close Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 97: ... device cable HDMI DVI Optical Recognition error Replace Main B D Replace Main B D Fix in accordance with technical information D Function error External device recognition error Established date Revised date 14 16 LCD TV Error symptom Standard Repair Process 14 2013 03 05 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 98: ...tion manual For models without any fix information provide the description OR Mechanical noise is a natural phenomenon and apply the 1st level description When the customer does not agree apply the process by stage Describe the basis of the description in Part related to nose in the Owner s Manual E Noise Circuit noise mechanical noise Established date Revised date 15 16 LCD TV Error symptom Stand...

Page 99: ...e controller Remote controller damage Stand dent Replace stand F Exterior defect Exterior defect Established date Revised date 16 16 LCD TV Error symptom Standard Repair Process 16 2013 03 05 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 100: ...art A5 7 A Video error _Vertical Horizontal bar residual image light spot LCD TV connection diagram A6 8 A Video error_ Color error Check Link Cable EPI reconnection condition A7 9 Adjustment Test pattern ADJ Key A8 10 Appendix Defected Type caused by T Con Inverter Module Exchange Main Board 1 A 1 5 11 Exchange Main Board 2 A 2 5 12 Exchange Power Board PSU A 3 5 13 Exchange Module 1 A 4 5 14 Exc...

Page 101: ...dio Normal video Checking method in menu when there is no audio A20 20 Voltage and speaker checking method when there is no audio A21 21 D Function error Remote controller operation checking method A22 22 Motion Remote operation checking method A23 23 Wifi operation checking method A24 24 Camera operation checking method A25 25 E Etc Tool option changing method A26 Continued from previous page Cop...

Page 102: ...ht with naked eye A Video error_No video Normal audio After turning on the power and disassembling the case check with the naked eye whether you can see light from 2 locations LCD TV A1 2013 03 05 XXLA860X TA Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 103: ...ter recording the R G B GAIN Cut value of Color Temp Cool Medium Warm re enter the value after replacing the MAIN BOARD ALL MODELS Entry method 1 Press the ADJ button on the remote controller for adjustment 2 Enter into White Balance of item 9 3 After recording the R G B GAIN Cut value of Color Temp Cool Medium Warm re enter the value after replacing the MAIN BOARD 2013 03 05 Copyright 2013 LG Ele...

Page 104: ...air Process Detail Technical Manual TUNER input signal strength checking method A Video error_Video error video lag stop ALL MODELS A3 Established date Revised date Error symptom Content LCD TV A3 2013 03 05 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 105: ...Checking method for remote controller for adjustment Press the IN START with the remote controller for adjustment Version ALL MODELS A4 Established date Revised date Error symptom Content LCD TV A4 2013 03 05 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 106: ...m power supply finally replace the MAIN BOARD Standard Repair Process Detail Technical Manual TUNER checking part A Video error_Video error video lag stop ALL MODELS A5 Established date Revised date Error symptom Content LCD TV A5 2013 03 05 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 107: ...bar residual image light spot As the part connecting to the external input check the screen condition by signal A6 Established date Revised date Error symptom Content LCD TV A6 ALL MODELS 2013 03 05 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 108: ...o error_Color error Check the contact condition of the Link Cable especially dust or mis insertion A7 Established date Revised date Error symptom Content LCD TV A7 ALL MODELS 2013 03 05 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 109: ...using the ADJ Key Checking item 1 Defective pixel 2 Residual image 3 MODULE error ADD BAR SCAN BAR 4 Video error Classification of MODULE or Main B D A8 Established date Revised date Error symptom Content LCD TV A8 2013 03 05 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 110: ...Solder defect CNT Broken Solder defect CNT Broken Solder defect CNT Broken Abnormal Power Section Solder defect Short Crack Abnormal Power Section Solder defect Short Crack Appendix Exchange Main Board 1 A 1 5 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 111: ...r Section Solder defect Short Crack Fuse Open Abnormal power section Noise GRADATION GRADATION Abnormal Display A 2 5 Appendix Exchange Main Board 2 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 112: ...ht Dim Light Dim Light Dim Light No picture Sound Ok A 3 5 Appendix Exchange Power Board PSU Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 113: ...ress damage Panel Mura Light leakage Press damage A 4 5 Un repairable Cases In this case please exchange the module Appendix Exchange the Module 1 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 114: ...k Source TAB IC Defect Horizontal Block Gate TAB IC Defect Horizontal line Gate TAB IC Defect Gate TAB IC Defect Horizontal Block Gate TAB IC Defect A 5 5 Un repairable Cases In this case please exchange the module Appendix Exchange the Module 2 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 115: ... in the status of ST BY Condition Menu Option LG Logo Light Brightness OFF LOW MIDDLE HIGH You can set the LG Logo Light to on or off by selecting OPTION in the main menus Front LOGO LED control in the status of Power On Condition Menu Option LG Logo Light Duration off off after10min Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 116: ...8 Check the DC 24V 12V 3 5V 24 Pin Power Board Main Board 1 Power on 2 INV ON 3 3 5V 4 PDIM 1 5 3 5V 6 PDIM 2 7 GND 8 GND 9 24V 10 24V 11 GND 12 GND 13 12V 14 12V 15 12V 16 24V 17 GND 18 GND 19 GND 20 GND 21 GND 22 L DIM0_VS 23 L DIM0_MOSI 24 L DIM0_SCLK 2013 03 05 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 117: ...ndard Repair Process Detail Technical Manual POWER OFF MODE checking method B Power error _Off when on off whiling viewing ALL MODELS A19 Established date Revised date Error symptom Content LCD TV A19 2013 03 05 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 118: ...TV Speaker Standard Repair Process Detail Technical Manual Checking method in menu when there is no audio C Audio error_No audio Normal video ALL MODELS A20 Established date Revised date Error symptom Content LCD TV A20 2013 03 05 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 119: ...om Power Board If there is no input voltage remove and check the connector Connect the tester RX1 to the speaker terminal and if you hear the Chik Chik sound when you touch the GND and output terminal the speaker is normal Standard Repair Process Detail Technical Manual Voltage and speaker checking method when there is no audio C Audio error_No audio Normal video A21 Established date Revised date ...

Page 120: ...is in ON condition it is normal when the Analog Tester needle moves slowly and defective when it does not move at all Standard Repair Process Detail Technical Manual Remote controller operation checking method D Function error A22 Established date Revised date Error symptom Content LCD TV A22 2013 03 05 XXLA860X TA Copyright 2013 LG Electronics Inc All rights reserved Only for training and service...

Page 121: ...ion between Motion assy Main board 3 Check the 3 3V on the terminal 2 Standard Repair Process Detail Technical Manual Motion Remote operation checking method Established date Revised date Error symptom Content LCD TV A23 A23 D Function error 2013 03 05 XXLA860X TA Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 122: ...n checking method A24 Established date Revised date Error symptom Content LCD TV A29 D Function error 2013 03 05 P4000 1 3 5V_WOL 2 3 3V 3 USB_DM 4 RTS 5 USB_DP 6 RX 7 GND 8 TX 9 WOL 10 RESET 11 GND 12 CTS 13 NC 14 3 5V_ST OLED 15 IR OLED 16 GND XXLA860X TA Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 123: ...king method A25 Established date Revised date Error symptom Content LCD TV A29 D Function error 2013 03 05 P4000 1 CAM_SLIDE_DET 2 3 5V_CAM 3 AUD_LRCH 4 AUD_LRCK 5 AUD_SCK 6 GND 7 CAM_PWR_ON_CMD 8 ST_BY_DET_CAM 9 GND 10 USB_CAMERA_DP 11 USB_CAMERA_DM 12 GND XXLA860X TA Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 124: ...Memory has each password Standard Repair Process Detail Technical Manual Tool option changing method A26 Established date Revised date Error symptom Content LCD TV A30 E Etc 2013 03 05 Copyright 2013 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Search results

Summary of Contents for 42LA8600

Reviews:

Related manuals for 42LA8600

Brands by name

Popular brands

LG 42LA8600, Service Manual

Search results

Summary of Contents for 42LA8600

Reviews:

Related manuals for 42LA8600

Brands by name

Popular brands