Page 2 - CONTENTS
- 2 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes CONTENTS CONTENTS .............................................................................................. 2 SAFETY PRECAUTIONS ................................................
Page 3 - General Guidance; Before returning the receiver to the customer,; Leakage Current Cold Check(Antenna Cold Check); Leakage Current Hot Check circuit; IMPORTANT SAFETY NOTICE; SAFETY PRECAUTIONS
- 3 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 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 e...
Page 4 - SERVICING PRECAUTIONS; CAUTION
- 4 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service manual and its supplements and addenda, read and follow the SAFETY PRECAUTIONS on page 3 of this ...
Page 5 - IC Remove/Replacement; Circuit Board Foil Repair
- 5 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes IC Remove/Replacement Some chassis circuit boards have slotted holes (oblong) through which the IC leads are inserted and then bent flat against the cir- cuit foil. When holes are...
Page 6 - SPECIFICATION; Requirement for Test; Supported satellite : 29 satellites
- 6 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 1. Application range This specification is applied to the LCD TV used LD23E ch...
Page 12 - ADJUSTMENT INSTRUCTION; Automatic Adjustment
- 12 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes ADJUSTMENT INSTRUCTION 1. Application Range This specification sheet is applied to all of the LED LCD TV with LD23E chassis. 2. Designation (1) Because this is not a hot chassis,...
Page 13 - SET
- 13 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 3.3. LAN Inspection 3.3.1. Equipment & Condition ▪ Each other connection to LAN Port of IP Hub and Jig 3.3.2. LAN inspection solution ▪ LAN Port connection with PCB▪ Network ...
Page 15 - EDID(The Extended Display Identification
- 15 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 4. Manual Adjustment * ADC adjustment is not needed because of OTP(Auto ADC adjustment) 4.1 EDID(The Extended Display Identification Data)/DDC(Display Data Channel) download 4.1....
Page 17 - and color temperature)
- 17 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes Ex) wb 00 00 -> Begin white balance auto-adj. wb 00 10 -> Gain adj. ja 00 ff -> Adj. data jb 00 c0 ... ... wb 00 1f → Gain adj. completed *(wb 00 20(Start), wb 00 2f(end...
Page 20 - Tool Option selection
- 20 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 5. Tool Option selection ▪ Method : Press "ADJ" key on the Adjustment remote control, then select Tool option. 6. Ship-out mode check(In-stop) ▪ After final inspection, p...
Page 21 - EXPLODED VIEW
- 21 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes A22 A2 A21 A5 A10 AG1 * Set + Stand * Stand Base + Body AG2 AG3 900 300 200 400 700 710 540 521 530 800 810 541 910 560 410 570 120 510 501 500 580 310 LV1 123 122 320 920 Dual P...
Page 22 - N V R A M
T H E S Y M B O L M A R K O F T H I S S C H E M E T I C D I A G R A M I N C O R P O R A T E SS P E C I A L F E A T U R E S I M P O R T A N T F O R P R O T E C T I O N F R O M X - R A D I A T I O N .F I L R E A N D E L E C T R I C A L S H O C K H A Z A R D S , W H E N S E R V I C I N G I F I S E S S ...
Page 27 - P O W E R; P A N E L _ P O W E R; e M M C P O W E R; D D R M A I N 1 . 5 V
THERMAL THERMAL THERMAL THERMAL T H E R M A L THERMAL THERMAL T H E S Y M B O L M A R K O F T H I S S C H E M E T I C D I A G R A M I N C O R P O R A T E SS P E C I A L F E A T U R E S I M P O R T A N T F O R P R O T E C T I O N F R O M X - R A D I A T I O N .F I L R E A N D E L E C T R I C A L S H ...
Page 28 - F o r D e b u g; R e n e s a s M I C O M; M I C O M M O D E L O P T I O N; M I C O M M O D E L O P T I O N
T H E S Y M B O L M A R K O F T H I S S C H E M E T I C D I A G R A M I N C O R P O R A T E SS P E C I A L F E A T U R E S I M P O R T A N T F O R P R O T E C T I O N F R O M X - R A D I A T I O N .F I L R E A N D E L E C T R I C A L S H O C K H A Z A R D S , W H E N S E R V I C I N G I F I S E S S ...
Page 29 - F H D
THERMAL T H E R M A L T H E R M A L T H E S Y M B O L M A R K O F T H I S S C H E M E T I C D I A G R A M I N C O R P O R A T E SS P E C I A L F E A T U R E S I M P O R T A N T F O R P R O T E C T I O N F R O M X - R A D I A T I O N .F I L R E A N D E L E C T R I C A L S H O C K H A Z A R D S , W H ...
Page 33 - Z e n e r D i o d e i s; c l o s e t o w a f e r
T H E S Y M B O L M A R K O F T H I S S C H E M E T I C D I A G R A M I N C O R P O R A T E SS P E C I A L F E A T U R E S I M P O R T A N T F O R P R O T E C T I O N F R O M X - R A D I A T I O N .F I L R E A N D E L E C T R I C A L S H O C K H A Z A R D S , W H E N S E R V I C I N G I F I S E S S ...
Page 34 - U S B H U B
T H E R M A L T H E S Y M B O L M A R K O F T H I S S C H E M E T I C D I A G R A M I N C O R P O R A T E SS P E C I A L F E A T U R E S I M P O R T A N T F O R P R O T E C T I O N F R O M X - R A D I A T I O N .F I L R E A N D E L E C T R I C A L S H O C K H A Z A R D S , W H E N S E R V I C I N G ...
Page 35 - F r o m S o C
U S B D O W N S T R E A M U S B D O W N S T R E A M U S B D O W N S T R E A M THERMAL THERMAL THERMAL T H E S Y M B O L M A R K O F T H I S S C H E M E T I C D I A G R A M I N C O R P O R A T E SS P E C I A L F E A T U R E S I M P O R T A N T F O R P R O T E C T I O N F R O M X - R A D I A T I O N ....
Page 38 - Ethernet Block
T H E S Y M B O L M A R K O F T H I S S C H E M E T I C D I A G R A M I N C O R P O R A T E SS P E C I A L F E A T U R E S I M P O R T A N T F O R P R O T E C T I O N F R O M X - R A D I A T I O N .F I L R E A N D E L E C T R I C A L S H O C K H A Z A R D S , W H E N S E R V I C I N G I F I S E S S ...
Page 41 - W O O F E R A M P .
T H E R M A L T H E S Y M B O L M A R K O F T H I S S C H E M E T I C D I A G R A M I N C O R P O R A T E SS P E C I A L F E A T U R E S I M P O R T A N T F O R P R O T E C T I O N F R O M X - R A D I A T I O N .F I L R E A N D E L E C T R I C A L S H O C K H A Z A R D S , W H E N S E R V I C I N G ...
Page 43 - O p t i o n F O R M T K
T H E S Y M B O L M A R K O F T H I S S C H E M E T I C D I A G R A M I N C O R P O R A T E SS P E C I A L F E A T U R E S I M P O R T A N T F O R P R O T E C T I O N F R O M X - R A D I A T I O N .F I L R E A N D E L E C T R I C A L S H O C K H A Z A R D S , W H E N S E R V I C I N G I F I S E S S ...
Page 44 - E A R P H O N E A M P
T H E S Y M B O L M A R K O F T H I S S C H E M E T I C D I A G R A M I N C O R P O R A T E SS P E C I A L F E A T U R E S I M P O R T A N T F O R P R O T E C T I O N F R O M X - R A D I A T I O N .F I L R E A N D E L E C T R I C A L S H O C K H A Z A R D S , W H E N S E R V I C I N G I F I S E S S ...
Page 46 - D V B - S 2 L N B P a r t A l l e g r o
T H E R M A L T H E S Y M B O L M A R K O F T H I S S C H E M E T I C D I A G R A M I N C O R P O R A T E SS P E C I A L F E A T U R E S I M P O R T A N T F O R P R O T E C T I O N F R O M X - R A D I A T I O N .F I L R E A N D E L E C T R I C A L S H O C K H A Z A R D S , W H E N S E R V I C I N G ...
Page 49 - D o n ’ t C o n n e c t P o w e r A t V D D I
T H E S Y M B O L M A R K O F T H I S S C H E M E T I C D I A G R A M I N C O R P O R A T E SS P E C I A L F E A T U R E S I M P O R T A N T F O R P R O T E C T I O N F R O M X - R A D I A T I O N .F I L R E A N D E L E C T R I C A L S H O C K H A Z A R D S , W H E N S E R V I C I N G I F I S E S S ...
Page 52 - D D R 0 P H Y V R E F
T H E S Y M B O L M A R K O F T H I S S C H E M E T I C D I A G R A M I N C O R P O R A T E SS P E C I A L F E A T U R E S I M P O R T A N T F O R P R O T E C T I O N F R O M X - R A D I A T I O N .F I L R E A N D E L E C T R I C A L S H O C K H A Z A R D S , W H E N S E R V I C I N G I F I S E S S ...
Page 53 - U D; D - D e p t h A n a l o g f o r 2 . 5 V
THERMAL THERMAL T H E S Y M B O L M A R K O F T H I S S C H E M E T I C D I A G R A M I N C O R P O R A T E SS P E C I A L F E A T U R E S I M P O R T A N T F O R P R O T E C T I O N F R O M X - R A D I A T I O N .F I L R E A N D E L E C T R I C A L S H O C K H A Z A R D S , W H E N S E R V I C I N ...
Page 54 - M O T O R S E N S O R O P T I O N
T H E S Y M B O L M A R K O F T H I S S C H E M E T I C D I A G R A M I N C O R P O R A T E SS P E C I A L F E A T U R E S I M P O R T A N T F O R P R O T E C T I O N F R O M X - R A D I A T I O N .F I L R E A N D E L E C T R I C A L S H O C K H A Z A R D S , W H E N S E R V I C I N G I F I S E S S ...
Page 55 - I R B L A S T E R
T H E S Y M B O L M A R K O F T H I S S C H E M E T I C D I A G R A M I N C O R P O R A T E SS P E C I A L F E A T U R E S I M P O R T A N T F O R P R O T E C T I O N F R O M X - R A D I A T I O N .F I L R E A N D E L E C T R I C A L S H O C K H A Z A R D S , W H E N S E R V I C I N G I F I S E S S ...
Page 58 - F R C - I I I C O R E f o r 0 . 9 V
THERMAL THERMAL THERMAL THERMAL T H E S Y M B O L M A R K O F T H I S S C H E M E T I C D I A G R A M I N C O R P O R A T E SS P E C I A L F E A T U R E S I M P O R T A N T F O R P R O T E C T I O N F R O M X - R A D I A T I O N .F I L R E A N D E L E C T R I C A L S H O C K H A Z A R D S , W H E N ...
Page 64 - LCD TV Repair Guide
LCD TV Repair Guide `12 years New Models < Applicable Model > XXLM960V-ZBXXLM860V-ZB V : T2/C/S2 T : T2/C S : T/C/S2 0 : T/C Copyright © 2012 LG Electronics. Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only
Page 65 - Local; Edge; Feature; types of LED - Edge; Model
Benefit: More Clear More Real Best picture quality + thin TV Local Dimming Local Dimming BLU structure Edge LED Edge Type w/ Local Dimming Upper Metal Cover LED Array LED Array is on the side of Module Local dimming depicts more deep black. Feature 2 types of ...
Page 66 - ALEF; LED Array is on the back of Module; types of LED - ALEF
Benefit: More Clear More Real Best picture quality + thin TV Slimmer depth better picture quality Local Dimming Local Dimming BLU structure ALEF LED` ALEF Type Local Dimming LED Array is on the back of Module Local dimming depicts more deep black. Featur...
Page 67 - Main PCB for Broadband; Micom for Key/IR sensing
Main PCB for Broadband Main + TCON all in one To PSU To FRC BOARD 1 3 4 1 Main processor_Digital(LG1152D), DDR MemoryFlash Memory 2 3 4 Micom for Key/IR sensing HDMI switch (4:1) Audio AMP (10W+10W) XXLM960V-ZBXXLM860V-ZB wifi Local Key +IR Motion assy Front Spk Woofer Spk Local Dim. 2 4 Main proces...
Page 68 - FRC Board for Broadband; Main + TCON all in one
FRC Board for Broadband Main + TCON all in one 1 FRC Processor(LG1122) 2 XXLM960V-ZB T-Con IC(LG5812) 1 2 From Main Board To Pannel ( Left ) To Pannel ( Right ) Copyright © 2012 LG Electronics. Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only
Page 69 - Block Diagram
Block Diagram L9A L9D USB2.0x3 DDR3 X 3 16 16 16 eMMC 8 HDMI1 HDMI2 HDMI3 HDMI4 HDMI (1 Ch) CVBS ( 8 Ch) Audio L/R (5 Ch) SIF(1 Ch) CVBS-Out SCART Line-Out SCART Component (2 Ch) PC-RGB (WUXGA) I2S CVBS(CHB) TS In(CHB) MICOM IR Keypad HDMI SW RMII PHY SPIDF_OUT Built-in WiFi CI Slot EB_DATA Ethernet...
Page 70 - Jack Interface; Main Chip; MUX; Tuner; EEPROM; SPDIF
Jack Interface Main Chip SC_DET SC_CVBS_IN DTV/MNT_V_OUT MUX IC2502 ATV_OUT DTV/ATV_SELECT SC_FB/ID_IN 2bit SC_R/G/B 3bit SC_L/R_IN DSUB_R/G/B 3bit DSUB_DET RGB_DDC_SCL/SDA 2bit Tuner EEPROM IC802/ R1EX24002ASAS0A MICOM EDID_WP HP_L/ROUT PC_L/R_IN SPDIF_OUT COMP_Y+/Pb+/Pr+ COMP_DET AV_CVBS_IN AV_L/R...
Page 71 - Analog Chip; L9 Block diagram
ATSC Half NIM DIF SIF Parallel TS SystemDemux Audio DSPMulti-STDAudio Decoder BTSC [email protected]/ PLL 1ch L/RAudio-ADC24b@48KHz GBB AFE1ch@30MHzw/ PLL Global BasebandV/Q, DVB-T/C CVBS(6ch) Component(2ch) 3ch Video AFE10b@165MHzw/ LLPLL PC-RGB HDMI-Rx 1.4(1-port PHY)3D, ARC, 4kx2k HDMI(1ch) Captu...
Page 72 - USB controller; About 220 internally generated clocks
CPU xi_main 1 Ghz DDR3PLL xo_main 1.6Ghz DDR3PLL1 1.6Ghz 24Mhz DDR3PLL2 0 1 0 1 0 1 CT R 1/2 1/5 1.6Gh z 1.6Ghz Memory Controller Memory Controller Memory Controller 800Mhz 800Mhz Video/Audio BlockCPU peripherial dcoin_clk DCO DCO 200Mhz 200Mhz Glitch-free logic betweende_dco_out andsdec_dco_out de_...
Page 73 - Appendix. Block Diagram for Edge/ALEF Backlight; SoC; Chip; Main; 0Pin mini LVDS
Appendix. Block Diagram for Edge/ALEF Backlight [ XXLM960V ALEF LED Backlight] SPI/Vsync FHD@240Hz Quad-Link HF mini-LVDS 8 SoC TCON (240Hz) FRC-III 3D Chip Main FRC LED BLU control LED BLU control FHD@60Hz Dual-Link LVDS For Video FHD@60Hz Dual-Link LVDS For OSD V by One IC401LG5812B IC100LG1122A D...
Page 75 - Interconnection – sub PCB( XXLM960V Series ); To Main; WIFI ASSY
Interconnection – sub PCB( XXLM960V Series ) RF MOTION ASSY To Main SPK unit 3 WIFI ASSY 4 RF MOTION ASSY 5 Local Key PCB 1 IR Key PCB Speaker cover Assy IR PCB WIFI ASSY Copyright © 2012 LG Electronics. Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only
Page 76 - Contents of LCD TV Standard Repair Process
Contents of LCD TV Standard Repair Process No. Error symptom (High category) Error symptom (Mid category) Page Remarks 1 A. Video error No video/Normal audio 1 2 No video/No audio 2 3 Picture broken/ Freezing 3 4 Color error 4 5 Vertical/Horizontal bar, residual image, light spot, external device co...
Page 77 - Standard Repair Process; LCD TV
Normal audio Y N Move to No video/No audio No videoNormal audio Check Back LightOn with naked eye On Y N Check Power Board24V, 12V,3.5V etc. Normal voltage Y N Replace T-con Board or moduleAnd Adjust VCOM Repair Power Board or parts Check Power Board 24V output Normalvoltage Y Replace Inverter or mo...
Page 78 - Established; Error
Normal voltage? Check various voltages of Power Board ( 3.5V,12V,20V or 24V…) 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 ☞ A4 Established date Revised date 2/15 LCD TV Error symptom 2 2012.01.16 ...
Page 80 - Check; RGB
Color error? Y N ※ Check and replace Link Cable(LVDS) and contact condition Y N Replace Main B/D Color error? Check error color input mode Check color by input-External Input-COMPONENT - RGB - HDMI/DVI Y External device /Cable normal External Input/ Component error Check external device andcable Y E...
Page 81 - External device screen error-Color error; For LGD panel; Check Test pattern; For other panel
Screen normal? N Y Check external device connection condition Y N Check and replace Link Cable Normal? Y N Screen normal? Replace Main B/D(adjust VCOM) Replace module Check color condition by input-External Input-Component - RGB - HDMI/DVI End Vertical/Horizontal bar, residual image, light spot Requ...
Page 83 - * Please refer to the all cases which
B. Power error Off when on, off while viewing, power auto on/off Error? N Y Check Power OffMode Fix A/C cord & Outlet and check each 3 phase out Check A/C cord Check for all 3- phase power out Check outlet Replace Main B/D CPU Abnormal (If Power Off mode is not displayed)Check Power B/D voltage ...
Page 87 - RF Receiver ver
D. Function error M4 operating checking Y N 2. M4(Magic Remocon) operating error Check M4 itself Operation Normal operating? Normal operating? Y Close Check & Replace Batterry of M4 Is show ok message? Press the wheel Is show ok message? Close N N N Y Standard Repair Process Established date Rev...
Page 88 - Wifi operating error; Wifi cable
D. Function error Wifi operating checking 3.Wifi operating error Check the INSTART menu Wi-Fi Mac value is “NG”? Y Check & Repair Wifi cable connection N Check the Wifi wafer (P4301)_1pin Standard Repair Process Established date Revised date 12/15 LCD TV Error symptom 12 2012.01.16 Change the Wi...
Page 92 - Continue to the next page
Contents of LCD TV Standard Repair Process Detail Technical Manual No. Error symptom Content Page Remarks 1 A. Video error_ No video/Normal audio Check LCD back light with naked eye A1 2 LED driver B+ 24V measuring method A2 3 Check White Balance value A3 4 A. Video error_ No video/Audio Power Board...
Page 93 - Continued from previous page
Contents of LCD TV Standard Repair Process Detail Technical Manual No. Error symptom Content Page Remarks 16 B. Power error_ No power Check front display LED A17 17 Check power input Voltage & ST-BY 3.5V A18 18 Checking method when power is ON A19 19 B. Power error_Off when on, off while viewing...
Page 94 - Standard Repair Process Detail Technical Manual
Established date Standard Repair Process Detail Technical 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 2 locations....
Page 95 - Check the DC 24V and Inverter on; ALEF LED; PSU
Standard Repair Process Detail Technical Manual LED driver B+ 24V measuring method A. Video error_No video/Normal audio A2 Established date Revised date Error symptom Content LCD TV A2 Check the DC 24V and Inverter on ALEF LED 2011. 12 .14 14 Pin (Power Board ↔ Driver) PSU 1 ~ 5 24V 6 ~ 10 GND 11 De...
Page 96 - Press the ADJ button on the remote controller for adjustment.; Press the ADJ button on the remote controller for adjustment.
Entry method 1. Press the ADJ button on the remote controller for adjustment. 2. Enter into White Balance of item 6. 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. Standard Repair Process Detail Technical Manual C...
Page 97 - 공통
Standard Repair Process Detail Technical Manual Power Board voltage measuring method A. Video error_No video/ Audio A4 Established date Revised date Error symptom Content LCD TV A4 Check the DC 24V, 12V, 3.5V. ALEF LED 2011. 12 .14 24 Pin (Power Board ↔ Main Board) - 공통 SMAW200-H24S (YEONHO) 1 Power...
Page 99 - Checking method for remote controller for adjustment
Standard Repair Process Detail Technical Manual LCD-TV Version checking method A. Video error_Video error, video lag/stop 1. Checking method for remote controller for adjustment Press the IN-START with the remote controller for adjustment Version <ALL MODELS> A7 Established date Revised date E...
Page 101 - residual image, light spot
Standard Repair Process Detail Technical Manual LCD TV 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 A9 Established date Revised date Error symptom Content LCD TV A9 <AL...
Page 103 - You can view 6 types of patterns using the ADJ Key
Standard Repair Process Detail Technical Manual Adjustment Test pattern - 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/...
Page 107 - In this case please exchange the module.
Appendix : Exchange the Module (1) Panel Mura, Light leakage Press damage Crosstalk Crosstalk Press damage Panel Mura, Light leakage Press damage A - 4/5 Un-repairable Cases In this case please exchange the module. Copyright © 2012 LG Electronics. Inc. All rights reserved. Only for training and serv...
Page 109 - Option
Standard Repair Process Detail Technical Manual Check front display LED B. Power error _No power A17 Established date Revised date Error symptom Content LCD TV A17 ST-BY condition: Red or Turn OffPower ON condition: Turn Off Front LED control :Menu Æ Option Æ Standby Light Æ ON/ Off 2011. 12 .14 <...
Page 111 - Check “power on” pin is high
Standard Repair Process Detail Technical Manual Checking method when power is ON B. Power error _No power A19 Established date Revised date Error symptom Content LCD TV A19 Check “power on” pin is high 2011. 12 .14 ALEF LED 24 Pin (Power Board ↔ Main Board) - 공통 SMAW200-H24S (YEONHO) 1 Power on 2 20...
Page 113 - Checking method; Press the Setting button on the remote controller
Checking method 1. Press the Setting button on the remote controller 2. Select the Sound function of the Menu 3. Select the Sound Setting 4. Select TV Speaker from Off to On Standard Repair Process Detail Technical Manual Checking method in menu when there is no audio C. Audio error_No audio/Normal ...
Page 114 - Checking order when there is no audio; Check the contact condition of or 24V connector of Main Board
Checking order when there is no audio ① Check the contact condition of or 24V connector of Main Board ② Measure the 24V input voltage supplied from Power Board (If there is no input voltage, remove and check the connector) ③ Connect the tester RX1 to the speaker terminal and if you hear the Chik Chi...
Page 115 - Checking order
Checking order 1, 2. Check IR cable condition between IR & Main board.3. Check the st-by 3.3V on the terminal 6.4. When checking the Pre-Amp when the power 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 Pro...
Page 117 - VDD
Checking order 1, 2. Check Wifi cable condition between Wifi assy & Main board.3. Check the 5V on the terminal 1. Standard Repair Process Detail Technical Manual Wifi operation checking method A29 Established date Revised date Error symptom Content LCD TV A29 P4301 1 VDD 2 DM 3 DP 4 GND ② ③ 2011...
