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LG 65UJ7700, Service Manual

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LG 65UJ7700 Service Manual Download Page 14

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5. Video/Audio

M

ai

n 

S

o

C

 

CVBS_IN2

 

Tuner

 

Jack 

Side

 

So

C 

Side

 

JK3

400

 

AV_CVBS_I

N

 

COMP2_Pb

 

COMP2_Pr

 

COMP2/AV_L_I

N 

COMP2/AV_R_I

N 

AV1_CVBS_IN_SO

C 

COMP2_Pb_IN_SO

C  

COMP2_Pr_IN_SO

C  

AUAD_L_CH2_I

N 

AUAD_L_CH2_I

N  

AUAD_R_CH2_I

N  

TU_CVBS_T

U  

TU_SIF_TU, 

IF_P/N_TU

 

CVBS_IN1

 

AAD_ADC_SIF, 

DMD_

ADC_INP, 

DMD_ADC_IN

N  

TU_CVBS

 

TU_SIF

, IF_P/

N

 

FE_DEMOD1/2_TS_CLK,SYNC,VA

L

 

FE_DEMOD1/2_TS_CLK,SYNC,VA

L

  [TP0CLK 

,VLD,SYNC]

 

     

     

AUAD_R_CH2_I

N 

VIN3

P  

VIN5

P 

     

     

     

COMP2_

Y

 

Y1_I

N 

COMP2_Y_IN_SOC

 

Summary of Contents for 65UJ7700

Page 1: ...r electronic means publication modification copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual The material covered by this prohibition includes without limitation any text graphics or logos in this Service Manual Copyright 2017 LG Electronics Inc All right...

Page 2: ... 2 CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SERVICING PRECAUTIONS 4 SPECIFICATION 6 SOFTWARE UPDATE 9 BLOCK DIAGRAM 10 EXPLODED VIEW 21 DISASSEMBLY GUIDE 22 TROUBLE SHOOTING GUIDE APPENDIX ...

Page 3: ...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 metallic parts such as antenna terminals phone jacks etc If the exp...

Page 4: ...rth 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 electrostatic charge buildup or expo sure of the assem...

Page 5: ...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 replaced component and adjacent components and the circuit boa...

Page 6: ...ed other specification Safety CE IEC specification EMC CE IEC 4 General Specification No Item Specification Remark 1 Market North America 2 Broadcasting system ATSC NTSC M 64 256 QAM 3 Available Channel VHF 02 13 UHF 14 69 DTV 02 69 CATV 01 135 CADTV 01 135 4 Receiving system Digital ATSC 64 256 QAM Analog NTSC M 5 Video Input NTSC M Rear gender 1EA 6 Component Input Y Cb Cr Y Pb Pr Rear gender 1E...

Page 7: ...80P 11 3840 2160 54 24 00 297 00 UDTV 2160P 12 3840 2160 56 25 25 00 297 00 UDTV 2160P 13 3840 2160 67 5 30 00 297 00 UDTV 2160P 14 4096 2160 53 95 23 97 296 70 UDTV 2160P 15 4096 2160 54 24 297 UDTV 2160P No Resolution H freq kHz V freq kHz Pixel clock MHz Proposed 1 720 480i 15 73 59 94 13 50 SDTV DVD 480I 525I 2 720 480i 15 75 60 00 13 51 SDTV DVD 480I 525I 3 720 480p 31 47 59 94 27 00 SDTV 480...

Page 8: ...0 HDTV 1080P 18 1920 1080p 33 75 30 00 79 20 HDTV 1080P 19 1920 1080p 56 25 50 00 148 5 HDTV 1080P 20 1920 1080p 67 43 59 94 148 35 HDTV 1080P 21 1920 1080p 67 5 60 00 148 50 HDTV 1080P 22 1920 1080p 112 5 100 297 00 UDTV 1080P 23 1920 1080p 134 86 119 88 296 70 UDTV 1080P 24 1920 1080p 135 00 120 297 UDTV 1080P 25 3840 2160p 53 95 23 98 296 70 UDTV 2160P 26 3840 2160p 54 24 00 297 00 UDTV 2160P 2...

Page 9: ...ing 6 After finished the update below Pop up appear 7 Click Yes TV will be DC OFF ON 8 After TV turned on Check the updated SW Version and Tool Option 2 NSU This Function is needed to connect to the internet 1 Menu All Settings General About This TV 2 Click CHEK FOR UPDATES system check newest version 3 Click DOWNLOAD AND INSTALL 4 TV is updating 5 After finished the update below Pop up appear 6 T...

Page 10: ...YPbPr SPDIF OUT ETHERNET I2C 1 USB_WIFI CVBS HDMI3 HDMI 2 0 USB2 2 0 RS232C HP HDMI2 ARC HDMI 2 0 AV EPI 3G 1 5G OCP OCP USB2 0_2_DM1 USB2 0_3_DM0 PHY2_RX0N PHY1_RX0N I2C6 SIF HDMI4 HDMI 2 0 PHY0_RX0N PMIC GAMMA IC CVBS COMP M0 M1 DDR3 2133 512MB DDR3 2133 512MB DDR3 2133 256MB DDR3 2133 256MB I2C 5 V x 1 60Hz 8lane 2 97Gbps only I2C2 V x 1 2 97Gbps Sub Micom X_TAL 32 768KHz SUB ASSY IR KEY LOGO L...

Page 11: ...3Ω IC102 NVRAM 3 3V_NORMAL IC5300 SCL2 SDA2 TUNER SCL4 SDA4 33pF SCL5 SDA5 1 8KΩ SCL1 SDA1 IC3000 MICOM 33Ω 3 3KΩ 3 3V_NORMAL 3 3KΩ 3 3V_NORMAL IC9200 33Ω IC9400 33Ω 33Ω 33Ω 47pF 3 3V_TU SCL2 SDA2 3 3KΩ 33Ω Module TCON 3 3V_NORMAL V x 1 60Hz 8lane 2 97Gbps only ...

Page 12: ... 5V_ST 1 8V_IO IC2100 3A 0 9V_CPU IC2000 10A 0 9V_CORE A13V USB1 2 0 USB2 2 0 PANEL IC1500 3 5A 1 5V_DDR MICOM IR_KEY ETHERNET WIFI 3 5V_WOL WIFI_EN CPU_1V0 M16P Main IC6900 2A IC1800 3A SWITCH 0 9V_DDR M16P NVRAM H P AMP 1 2V_DEMOD TUNER NTP7515 MAX3232CDR IC2200 2A IC2300 2A AVDDT_EPI_C4TX M16P M16P ...

Page 13: ...3 FE_DEMOD1_TS_DATA 6 24 FE_DEMOD1_TS_DATA 7 25 3 3V_TU I2C_SCL5_TU 1 I2C_SDA5_TU 2 TU_SIF_TU 6 TU_CVBS_TU 4 IF_AGC_TU 5 TU_RESET1_TU 10 FILTER FE_DEMOD1_TS_CLK FE_DEMOD1_TS_SYNC FE_DEMOD1_TS_VAL FE_DEMOD1_TS_DATA 0 7 33 Ω IF_P_TU IF_N_TU TU_CVBS IF_AGC IF_P_MAIN IF_N_MAIN TU_RESET1 GPIO26 CVBS_IN1 IFAGC 3 3V_TU 1 8KΩ Main SoC TP_DVB_CLK TP_DVB_SOP TP_DVB_VAL TP_DVB_DATA0 TP_DVB_DATA1 TP_DVB_DATA2...

Page 14: ..._R_IN AV1_CVBS_IN_SOC COMP2_Pb_IN_SOC COMP2_Pr_IN_SOC AUAD_L_CH2_IN AUAD_L_CH2_IN AUAD_R_CH2_IN TU_CVBS_TU TU_SIF_TU IF_P N_TU CVBS_IN1 AAD_ADC_SIF DMD_ADC_INP DMD_ADC_INN TU_CVBS TU_SIF IF_P N FE_DEMOD1 2_TS_CLK SYNC VAL FE_DEMOD1 2_TS_CLK SYNC VAL TP0CLK VLD SYNC AUAD_R_CH2_IN VIN3P VIN5P COMP2_Y Y1_IN COMP2_Y_IN_SOC ...

Page 15: ...TR_CH1 TUNER_SIF IC3000 MICOM AMP_MUTE GPIO23 AMP_RESET_N JK3403 JK6200 LPF Front_L Front_R DACSCK GPIO81 Main SoC JK3400 COMP2 AV_R_IN COMP2 AV_L_IN AUAD_R_CH1_IN AUAD_L_CH2_IN SDA0 GPIO138 SCL0 GPIO139 AUD_LRCK AUD_LRCH IC6300 EAN62668301 I2C_SDA_0_AMP1 I2C_SCL_0_AMP1 DACLRCH GPIO82 DACLRCK AUD_SCK SIDE_HP_MUTE 6 I2C Map ...

Page 16: ...TMDS Link 8bits DDC_SCL_2 DDC_SDA_2 TMDS Link 8bits DDC_SCL_4 DDC_SDA_4 TMDS Link 8bits TMDS DATA 6bits DATA0 1 2 TMDS CLK 2bits TMDS Link 8bits HDMI_CEC_MICOM Q3001 DDC_SCL_1 DDC_SDA_1 JK3104 JK3102 JK3101 HDMI3 Rear HDMI2 0 JK3103 DDC_SCL_3 DDC_SDA_3 TMDS Link 8bits DDC_SCL_2 DDC_SDA_2 PHY0_ARC_OUT DDC_SCL_3 DDC_SDA_3 DDC_SCL_4 DDC_SDA_4 7 EPI block PMIC ...

Page 17: ..._OCD2 USB_CTL2 USB_CTL2 USB_OCD2 WIFI_DM WIFI_DP USB2_2_DM0 USB2_2_DP0 MICOM IC3000 UART0_TXD GPIO105 UART0_RXD GPIO106 SOC_TX SOC_RX IC7200 USB2 0 WIFI Combo BT_RESET BT_WAKEUP_DEVICE BT_WAKEUP_HOST OCP IC4700 OCP IC4501 5V_NORMAL 5V_NORMAL JK4400 JK4600 USB2 0 Main SoC USB2_1_DM0 USB2_1_DP0 SPI_CS1 GPIO32 SPI_DI1 GPIO35 8 USB WIFI M REMOTE UART ...

Page 18: ...COM1 VCOMLFB VCOM2 VGL1 VST GIP_RST LS_VGL VGH_EVEN VGH_ODD VGH 10 CLK 1 10 GMA1 4 5 6 9 10 13 14 15 18 10 PM_VCC SDA2 GPIO78 SCL2 GPIO79 I2C_SDA_BACKEND I2C_SCL_BACKEND VDD_EPI VCORE SWG SWO SWI PM_VCC VCC18 PANEL_VCC E0 GST MCLK GCLK PANEL_VCC 9 EPI 60Pin Interface 60Hz 3Gbps ...

Page 19: ...T LS_VGL VGH_EVEN VGH_ODD VGH 6 CLK 1 6 GMA1 5 6 9 10 13 14 18 8 GMA2 3 4 7 8 11 12 15 16 17 SDA2 GPIO78 SCL2 GPIO79 I2C_SDA_BACKEND I2C_SCL_BACKEND VDD_EPI VCORE SWG SWO SWI PM_VCC VCC18 PANEL_VCC E0 GST MCLK GCLK GAMMA IC IC9400 10 HVDD VDD_EPI 3 3V_NORMAL PM_VCC PANEL_VCC 10 CEDS 68Pin Interface 60Hz 1 5Gbps ...

Page 20: ... 20 TX 8lane Main SoC SDA2 GPIO78 SCL2 GPIO79 I2C_SDA_2_BE I2C_SCL_2_BE V x 1 60Hz Tx 8 lane PANEL_VCC Data format Bit select HTPDN LOCKN MLE MSE Control signal 11 V x 1 51Pin Interface 60Hz 2 97Gbs ...

Page 21: ...PLODED 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 200A 200 400 800 540 521 120 820 LV1 530 901 902 121 952 500 570 571 200T 951 700 A10 AR2 ...

Page 22: ... 22 DISASSEMBLY GUIDE Fig 1 Fig 2 Screw Depends of Inch 2 Detach Tape Total Screw No Depends on inch 1 After Screw Disassemble please remove B C from Module Detach tape 65 20EA ...

Page 23: ... 23 3 Remove all sort of cable 4 IR assy WiFi PCB assy disassembly Fig 3 Fig 4 7 Disassemble screw 1ea and Remove wi fi cable Remove IR cable and Disassemble Latch 1ea 3 4 5 5 6 ...

Page 24: ... 24 Fig 6 Fig 5 Screw 65UJ75 11EA 65SJ80 12EA 5 Screw disassembly 6 Speaker disassembly 7 7 7 7 7 7 7 7 7 7 7 ...

Page 25: ... 25 Fig 7 Screw 4ea 7 Screw disassembly 5 7 7 7 7 7 ...

Page 26: ... 26 M4 20 6EA Disassemble screw rotate and disassemble Photographs of Product ...

Page 27: ...TROUBLE SHOOTING GUIDE ...

Page 28: ... error No power 6 7 Off when on off while viewing power 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 MR15 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...

Page 29: ...Inverter or module N Repair Power Board or parts End Always 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 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 properl...

Page 30: ...voltages of Power Board 13 2V No Video No audio Check and replace 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 Error symptom 2 ...

Page 31: ... Different maker TV etc SVC Bulletin Replace Main B D Check Tuner soldering Normal Picture Y N Y Close Y Close By using Digital signal level meter By using Diagnostics menu on OSD Advanced Channels Channel Tuning 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...

Page 32: ... device Cable normal External Input Component error Check external device and cable Y External device Cable normal HDMI error Check external device and cable Replace Main T con B D Replace Main T con 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 Err...

Page 33: ...tion of External Input Component RGB and HDMI DVI by connecting Jig pattern Generator Set top Box etc N Y Replace Main T con 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 patte...

Page 34: ...operly Check Logo LED Replace Power B D Measure voltage of each output 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 Error symptom 6 Stand By Red or Turn On Operating Turn Off Close ...

Page 35: ...r off List Explanation Normal POWEROFF_REMOTEKEY Power off 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 ...

Page 36: ...13 2V of Power Board Normal voltage Y N Replace Power Board and repair 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 Error symptom Standard Repair Process 8 ...

Page 37: ...ecked audio Discontinuation Noise only for External Input Connect 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 13 2V Replace Main B D In case of External Input signal err...

Page 38: ...ck R C Operating When turn off light in room Check Replace Baterry 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 Proce...

Page 39: ...e Close N N N Y Standard Repair Process Established date Revised date 11 16 Error symptom 11 Replace MR13 Turn off on the set and press the wheel Press the back key about 5sec Close 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 Rece...

Page 40: ...RT menu Wi Fi Mac value is NG Y Check Repair Wifi cable connection N Check the Wifi wafer 1pin Standard Repair Process Established date Revised date 12 16 Error symptom 12 Change the Wifi assy Normal Voltage Close Y Y N Replace Main B D Wi Fi Mac value is NG N Close A24 A4 A4 A24 ...

Page 41: ...amera operating error Check the INSTART menu Camera Ver is NULL Y N Reconnect the Camera module Standard Repair Process Established date Revised date 13 16 Error symptom 13 Change the Camera module Normal operation Close Y N Replace Main B D A25 A4 ...

Page 42: ...ternal Input and Component Recognition error Check and fix external 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 Error symptom Standard Repair Process 14 ...

Page 43: ...fer to the KMS fix information and then proceed as shown in the solution manual For models without any fix information provide the description 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 noi...

Page 44: ...ior damage Module damage Cabinet damage Replace cabinet Replace remote control Remote control damage Stand dent Replace stand F Exterior defect Exterior defect Established date Revised date 16 16 Error symptom Standard Repair Process 16 ...

Page 45: ...d A3 4 Version checking method A4 5 Tuner Checking Part A5 6 A Video error _Vertical Horizontal bar residual image light spot Connection diagram A6 7 A Video error_ Color error Check Link Cable Vx1 EPI reconnection condition A7 8 Adjustment Test pattern ADJ Key A8 9 Appendix Defected Type caused by T Con Inverter Module Exchange Main Board 1 A 1 5 10 Exchange Main Board 2 A 2 5 11 Exchange Power B...

Page 46: ... 3 5V A18 16 B Power error_Off when on off while viewing POWER OFF MODE checking method A19 17 C Audio error_ No audio Normal video Checking method in menu when there is no audio A20 18 Voltage and speaker checking method when there is no audio A21 19 D Function error Remote control operation checking method A22 20 Motion Remote operation checking method A23 Continued from previous page ...

Page 47: ...al Manual Revised date A1 Error symptom Content Check LCD back light 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 locations A1 43 49 55 60 65 ...

Page 48: ...nt Check White Balance value A Video error_No video Normal audio A2 ALL MODELS Entry method 1 Press the ADJ button on the remote control for adjustment 2 Enter into White Balance 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 ...

Page 49: ... signal is strong use the attenuator 10dB 15dB 20dB etc Standard Repair 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 A3 ...

Page 50: ...rsion checking method A Video error_Video error video lag stop 1 Checking method for remote control for adjustment Press the IN START with the remote control for adjustment Version ALL MODELS A4 Established date Revised date Error symptom Content A4 v ...

Page 51: ... external device is connected 2 After measuring each voltage from power supply finally replace the MAIN BOARD Standard Repair Process Detail Technical Manual TUNER checking part A Video error_Video error video lag stop A5 Established date Revised date Error symptom Content A5 43 49 55 60 65 ...

Page 52: ...Manual connection diagram 1 A Video error _Vertical Horizontal 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 A6 ALL MODELS ...

Page 53: ...ess Detail Technical Manual Check Link Cable VX1 EPI reconnection condition A Video error_Color error Check the contact condition of the Link Cable especially dust or mis insertion A7 Established date Revised date Error symptom Content A7 ...

Page 54: ...ADJ Key A Video error_Color error You can view 6 types of patterns 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 A8 ...

Page 55: ... Broken T Con Defect CNT Broken Solder defect CNT Broken 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 ...

Page 56: ...rmal Power Section Solder defect Short Crack Abnormal Power Section Solder defect Short Crack Fuse Open Abnormal power section Noise GRADATION GRADATION Abnormal Display Appendix Exchange Main Board 2 A 2 5 ...

Page 57: ...Appendix Exchange Power Board PSU No Light Dim Light Dim Light Dim Light No picture Sound Ok A 3 5 ...

Page 58: ...Appendix Exchange the Module 1 A 4 5 Crosstalk Crosstalk Press damage Press damage Un repairable Cases In this case please exchange the module Press damage ...

Page 59: ...C Defect Vertical Line Source TAB IC Defect Vertical Block 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 Appendix Exchange the Module 2 A 5 5 Un repairable Cases In this case please exchange the module ...

Page 60: ...rd Repair Process Detail Technical Manual Check front Power Indicator B Power error _No power A17 Established date Revised date Error symptom Content A17 ST BY condition On or Off Power ON condition Turn Off ...

Page 61: ...rror symptom Content Check power input voltage and ST BY 3 5V B Power error _No power A18 Check the DC 13 2V Backlight Forward Voltage Symbol Values Unit Min Typ Max 43 VF 90 09 100 1 110 11 Vdc 49 101 61 112 0 124 19 55 106 38 118 2 130 2 60 122 76 136 4 150 04 65 128 34 142 6 156 86 ...

Page 62: ...ntrol for adjustment 2 Check the entry into adjustment item 3 Standard 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 A19 ...

Page 63: ...the Sound function of the Menu 3 Select the Sound Out 4 Select 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 A20 ...

Page 64: ... the connector 3 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 Error symptom Content A21 1 SPK_R FT 2 SPK_R FT 3 SPK_L FT...

Page 65: ...ndard Repair Process Detail Technical Manual Remote control operation checking method D Function error A22 A23 Established date Revised date Error symptom Content A22 A23 Checking order to check remote control IR EYE Sensor IR LOGO light Rear IR Eye Pin Pin name 1 VCC 2 USB_DM 3 USB_DP 4 GND 5 WOL WIFI_ON 6 VCC 7 COMBO_RESET 8 GND 9 BT_WAKEUP_DEVICE 10 BT_WAKEUP_HOST 11 GND 12 GND 13 14 15 16 EYE_...

Page 66: ... Check BT Wifi cable condition between BT Wifi assy Main board 2 Check the 3 5V on the terminal 22 Checking order to check motion remote wifi Wifi BT Front Wifi BT Rear Pin Pin name 1 VCC 2 USB_DM 3 USB_DP 4 GND 5 WOL WIFI_ON 6 VCC 7 COMBO_RESET 8 GND 9 BT_WAKEUP_DEVICE 10 BT_WAKEUP_HOST 11 GND 12 GND 13 14 15 16 EYE_SDA 17 EYE_SCL 18 GND 19 IR 20 LED_R 21 GND 22 VCC 23 KEY2 24 KEY1 25 GND ...

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