LG Electronics 55LA69**-Z* manuals
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Very often issues with LG Electronics 55LA69**-Z* begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in Flat Panel Television LG Electronics 55LA69**-Z* is responsible for and what options to choose for expected result.
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LG Electronics 55LA69**-Z* Service Manual
128 pages 12 Mb
2 CONTENTS3 SAFETY PRECAUTIONSIMPORTANT SAFETY NOTICEGeneral GuidanceBefore returning the receiver to the customer, Leakage Current Cold Check(Antenna Cold Check) Leakage Current Hot Check (See below Figure) Leakage Current Hot Check circuit 4 SERVICING PRECAUTIONS6 SPECIFICATION13 ADJUSTMENT INSTRUCTION1. Application Range 2. Designation 3. Automatic Adjustment3.1. MAC address D/L, CI+ key D/L, Widevine key D/L, ESN D/L, HDCP14/20 D/L 3.2. LAN Inspection3.2.1. Equipment & Condition 3.2.2. LAN inspection solution 3.2.3. WIDEVINE key Inspection 14 3.3. LAN PORT INSPECTION(PING TEST)3.3.1. Equipment setting 3.3.2. LAN PORT inspection(PING TEST) 3.4. Model name & Serial number Download SET PC3.4.1. Model name & Serial number D/L 3.4.2. Method & notice 3.5. CI+ Key checking method3.5.1. Check the method of CI+ Key value 3.5.2. Check the method of CI+ key value(RS232) 3.6. WIFI MAC ADDRESS CHECK 15 4. Manual Adjustment4.1. EDID DATA4.1.1. 3D EDID 4.1.2. 2D EDID 16 4.2. White Balance Adjustment4.2.1. Overview 4.2.2. Equipment 4.2.3. Equipment connection MAP 4.2.4. Adj. Command (Protocol) 17 4.2.5. Adj. method4.2.6. Reference (White balance Adj. coordinate and color temperature) 4.2.7. ALELF & EDGE LED White balance table 4.7. LNB voltage and 22KHz tone check 4.8. Option selection per country4.8.1. Overview 4.8.2. Method 19 5. Tool Option selection6. Ship-out mode check(In-stop) 7. GND and Internal Pressure check7.1. Method 7.2. Checkpoint 8. Audio 20 9. USB S/W Download(Service only)* After downloading, have to adjust Tool Option again. 21 BLOCK DIAGRAM22 EXPLODED VIEWIC100 AT24C256C-SSHL-T 8 MID_MAIN_1 2011.12.13 23 HDCP EEPROMI2C Model Option X-TAL NVRAM EAX64797001* : LD33B EAX64872101* : LA33BClose to eMMC Flash (IC8100) Place at JACK SIDEClose to Tuner 9 MID_MAIN_2 2011.12.19Close to MT5369 Port was changed !!!! 24 PLACE AT JACK SIDE25 10DECAP FOR SOC (HIDDEN - UCC) DECAP FOR SOC Rework (BOTTOM) 2011.12.09 MID_MAIN_3 2011.12.30 11 MID_MAIN_SCART 26 PLACE AT JACK SIDEPLACE AT MAIN SOC SIDE PLACE AT IC600027 K4B4G1646B-HCK0IC701 MT41K128M16JT-125:K K4B4G1646B-HCK0 IC703 IC702 DDR ONE SIDE 12 2011.12.09 28 13CI TS INPUT Close to MT5369 Close to MT5398 2011.11.21 MID_MAIN_CI Close to MT5369 CI DETECT CI TS OUTPUT FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS Vout=0.765*(1+R1/R2)MAX 3.4 A IC2404 RT8289GSP 6A Vout=0.827*(1+R1/R2)=1.521V Vout=0.8*(1+R1/R2) DDR MAIN 1.5V PANEL_POWER +5V_Normal DDR MAIN 1.5V 29 5AFROM LPB & PSU Power_DET +3.3V_NORMAL On-semiFILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS IC3000 For Debug MICOM MODEL OPTION0 GP4 High/MID Power SEQUENCE 30 Renesas MICOMTHERMAL 39 RX2+ 38 RX2- 37 RX1+ 36 RX1- 35 RX0+ 34 RX0- 33 RXC+ 32 RXC- 31 VDD33_1 1 29 TXC- 28 TXC+ 27 TX0- 26 TX0+ 25 TX1- 24 TX1+ 23 TX2- 22 TX2+ 21 HPD_IN GPIO1/CI2CA VREG33_OUT INT 5 RSVDL2 2 RESET 3 31 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS UI : HDMI2 UI : HDMI1 SIDE Current Limit HDMI 4 2011.10.29 33#MHL_OCP IC3304 SIL1292CNUC VDD12_1 4 RSVDL1 6 30 AVDD12 PWR5V_DET 7 DSDA 8 DSCL 9 CBUS/HPD 10 VDD5_IN 11 RSVDNC 12 13 PS_CTRL 14 HDMI_DET 15 16 GPIO0 17 CSDA 18 CSCL 19 CEC_A 20 VDD12_2 40 VDD33_2 41 [EP]GNDDDC_SCL_4_JACK HDMI_DET R3361 47K SIDE UI : HDMI3 SIDE 36 JACK HIGH / MID 2011.11.21 32 SPDIFSPDIF OUT33 37JACK_COMMON 2011.11.21 38 JACK_COMMON 2011.11.21 UART FOR DEBUG 34 AV/COMPONENT REARAR4100 100 1/16W M_REMOTEP4100 SMAW200-H12S2 Place Near MicomM_REMOTE&WIFI_WAFER 1 2 3 4 5 6 7 8 9 10 11 12 13 IR / KEY 2011.11.21 41 35 MAX 0.4AIC4306 TPS2066CDGNR 43 USB2_USB3 2012.7.11 36 MAX 1.5A OCP USB2/3USB2 MAX 1.5A USB3 37 DVR ReadyOCP USB1 USB1 MAX 1.5A 39 Ethernet Block40 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 0x54 41 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS [SCART AUDIO MUTE]SCART AUDIO AMP 2011.11.21 60 EUAUD_OUT >> EU/CHINA_HOTEL_OPT 2011.09.29 HEADPHONE AMP 61 42 EARPHONE AMP43 62CI SLOT 2011.10.31 CI POWER ENABLE CONTROLIC6300 TDA8024TT +5V_NORMAL CI SLOT 2011.04.17 62 44 B-CAS (SMART CARD) INTERFACE45 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS IF_P 13 20 32 2. No via on both of them 17 34 should be guarded by ground 3. Signal Width >= 12mils 2A Vout=0.6*(1+R1/R2)35 Close to the tuner 31 21 CHB : Max mA 24 36 18 33 22 30 26 27 25 12 TUNER 2012.07.10 65TU_W TU_N_BR +1.8V_TU +3.3V_TU +1.8V_TU IF_AGC IF_N IC6501 AP2132MP-2.5TRG1 I2C_SCL4 I2C_SDA4 T2 : Max 1.7A +1.23V_D_Demod 6 11 14 close to Tuner 7 2 3 Signal to Signal Width = 12mils Ground Width >= 24mils 23 close to TUNER 16 else : Max mA 8 1. should be guarded by ground R2 R1 close to TUNER9 4 close to Tuner 1 5 10 else : Max 0.7A 46 TU6600 TDSS-G501D(B) TU6503 TDSM-C601D(B) TU_SYMBOL_EU_M 2012.07.10 66 TU6601 TDSQ-G501D(B) TU6602 TDSW-J501F(B) 47 RS-232C Control INTERFACEFILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS IC6900 A8303SESTR-T LNB 2012.03.08 69 48 DVB-S2 LNB Part AllegroMax 1.3A (Option:LNB) 2A 3A71 LVDS_HIGH_MID 2011.08.11 49 LVDS[41Pin LVDS OUTPUT Connector] [51Pin LVDS OUTPUT Connector] 76 [To LED DRIVER] LOCAL DIMMING 2011.12.13 50 LOCAL DIMMINGFILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS IC7701 2011.12.01 77 IC7700 TPS65178RSLR [Left Source(51PIN LOCATION)] [Right Source(41PIN LOCATION)] T-Con 51 <LEVEL SHIFTER BLOCK><POWER BLOCK> THIS IS REVERSE PATTERN !!!!FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS IC8100-*3 KLM2G1HE3F-B001 (Just Interal LDO Capacitor) SAMSUNG_EMMC_16G HYNIX_EMMC_4GB TOSHIBA_EMMC_4GB TOSHIBA_EMMC_8GB SAMSUNG_EMMC_4GB TOSHIBA_EMMC_16GB Dont Connect Power At VDDI HYNIX_EMMC_2GBIC8100-*4 THGBM5G7A2JBAIR IC8100-*1 THGBM5G5A1JBAIR IC8100 H26M31002GPR IC8100-*2 H26M21001ECR 11.09.29 81 53 eMMC I/F 58 CONTENT 65 IC105 LGE 21222. LGE 2122 I2C Block Diagram 66 3. Power Block Diagram 3.5V24V5V USB 3A AMP LNB option PANEL_POWERNTP_7400(PVDD1) NTP_7400(PVDD2) 5V Normal 3A 3.3V DAC 1.2V Core 6A MTK(AVDD12_LVDS) MTK AVDD_ MICOM(VDD) IR A'ssy 1.5V DDR 3A MTK (DDRV) DDR(VDD) DDR(VDDQ) TUNER(+1.23V) 12V5V USB 3.3V Noraml 4A 1.8V_TU 1.23V 2A 67 4. Tuner/CI Block Diagram68 5. Video/Audio In Block Diagram69 6. Audio Out Block Diagram SPDIF_OUT IC8101 Audio AMP NTP7513 DVB only AMP_MUTE TUNER_SIF LPF COMP1/AV1/DVI_L_IN_SOC COMP1/AV1/DVI_R_IN_SOC SC_L_IN / SC_R_IN Tuner SCART DTV/MNT_L/R_OUT SCART_L/Rout AUD_LRCH HP_L/ROUT_MAIN HEAD PHONE LPF 4P WAFER LGE 2122 [AOSDATA0] AUD_LRCK AUD_SCK [AOBCK] [STB_SDA] [STB_SCL] I2C_SDA1 I2C_SCL1 IC3000 MICOM [AIN1_L_AADC] [AIN1_R_AADC] [AIN4_L_AADC] [AIN4_R_AADC] JK501 DVB only AUD_MASTER_CLK JK4600 IC6100 TPA6138A2PWR HP AMP JK3602 SPEAKER_L SPEAKER_R IC6000 AZ4580MTR OP AMP Mute CTRL (TR) SCART_MUTE SCART JK4600 70 7. HDMI SIL1292 HDMI3 HDMI1 HDMI2 RENESAS MICOM LGE 2122 DDC_SCL_1_SOC X-tal 32.768kHz TMDS Link 8bits TMDS Link or MHL Link 71 EPI Tx Block LGE 2122 GMA1/GMA3/GAM9/GMA10/GMA16/GMA18 50Pin X 2 8. Panel Interface Block Diagram PMIC TPS65198 EPI CH4 +/- EPI CH5 +/- EPI CH6 +/- EPI CH1 +/- EPI CH2 +/- EPI CH3 +/- CLK1_I~CLK6_I GMA4/GMA5/GAM7/GMA12/GMA14/ GMA15 TR/ 73 10. USB / WIFI / M-REMOTE / UART LGE 2122 USB1 OCP Motion Remote Receiver RENESAS MICOM 4Pin debugging wafer 74 Interconnection - 1 LED driver / PSU [PCBs] [Cables] 75 Interconnection - 2 76 Introductions of 13Y RF assy + Magic Remote control 77 1. System Pairing Information Transmission (Send to TV after Paired) The receiver sends the pairing success packet to TV directly. Voice Data Transmission 2. Remote Buttons (M4 vs. MR13) M4 Remote MR13 Remote 78 79 3. MR13 Block Diagram Key Button Connector (Knowles) Power Management Antenna Remocon Sensor RF 80 4. Function list 81 5. RF Pairing / Un-pairing Method Method Description at the same time for 5 sec. RF Pairing unpairing. When do pairing, the remote receiver(stand alone). After unpairing, LED should be 83 WIFI Built in assy feature - Pin map 85 Widevine & HDCP 2.0 & NETFLX 86 1. Widevine? dowmload by NSU is impossible.) Widevine Key is unique data stored TV for using Widevine. 87 2. HDCP 2.0 & NETFLIX? 88 3. DTCP? [Three cryptographic Keys] 89 4. Changed BOM 90 Contents of LCD TV Standard Repair Process C. Audio error First of all, Check whether there is SVC Bulletin in GCSC System for these model. 91 Contents of LCD TV Standard Repair Process Detail Technical Manual Continue to the next page 19 / 88 Check Power Board A7 & A3 or module N Always check & record S/W Version and White Established (Main B/D Power B/D, LVDS Cable,Speaker Cable,IR B/D Cable,,,) 92 LCD TV symptom A. Video error No video/ Normal audio A4 A1 A2 A28 First of all, Check whether all of cables between board is inserted properly or not. 94 A. Picture Problem A7 A6 . By using Digital signal level meter . By using Diagnostics menu on OSD Contact with signal distributor LCD TV 95 A. Picture Problem (DVB-S/S2) A7 A6 Normal Y Check RF signal cable (DVB satellite signal or not) Check whether other equipments have problem or not. (By connecting RF Cable at other equipment) Set-Top-Box, Different maker TV etc LCD TV symptom - Check satellite Normal 23 / 88 A12 96 A. Video error A10/ A11 A8 error? Established date Revised date symptom 2012. 12 .06 24 / 88 Vertical/Horizontal bar, residual image, light spot For other panel For LGD panel Vertical / Horizontal bar, residual image, light spot, external device color error A12 97 External device screen error-Color error Connect other external device and cable (Check normal operation of Check screen Established symptom date Revised date A8 A10/ A11 A28 25 / 88 B. Power error Close A18 A4 A17 A19 Standard Repair Process Established date Revised date LCD TV symptom . Stand-By: Red . Operating: white 98 2012. 12 .06 26 / 88 99 B. Power error symptom A19 Off when on, off while viewing, power auto on/off A22 LCD TV "POWEROFF_CPUABNORMAL" Power off by CPU Abnormal * Please refer to the all cases which can be displayed on power off mode. 27 / 88 100 C. Audio error No audio/ Normal video A24 A25 Established date Revised date LCD TV 2012. 12 .06 28 / 88 abnormal audio/discontinuation/noise is same after Check input signal compared to No audio A25 101 C. Audio error symptom Revised date Wrecked audio/ discontinuation/noise Established LCD TV D. General Function Problem A27 A4 Remote control & Local switch checking 102 1. Remote control(R/C) operating error 108 Contents of LCD TV Standard Repair Process Detail Technical Manual
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