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LG S94T1-S Service Manual
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LG S94T1-S Service Manual

9.1 channel cinema sound 3d blu-ray / dvd home theater system
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Internal Use Only
Website http://biz.lgservice.com
9.1 channel Ci n ema Sound
3D Bl u -ray
/ DVD Home Theater System
TM
SERVICE MANUAL
MODEL: BH9540TW
(BH9540TW, S94T1-S/C/W, W4-4, T2)
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS"
IN THIS MANUAL.
P
N /
O
:
AFN76552404
MARCH, 2014

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  • Page 1 Website http://biz.lgservice.com 9.1 channel Ci n ema Sound 3D Bl u -ray / DVD Home Theater System SERVICE MANUAL MODEL: BH9540TW (BH9540TW, S94T1-S/C/W, W4-4, T2) CAUTION BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL. AFN76552404 MARCH, 2014...
  • Page 2 CONTENTS SECTION 1 ..SUMMARY SECTION 2 ..ELECTRICAL SECTION 3 ..CABINET & MAIN CHASSIS SECTION 4 ..MT8580 F/E LOADER PART SECTION 5 ..WIRELESS RECEIVER PART SECTION 6 ..REPLACEMENT PARTS LIST...

  • Page 3: Table Of Contents

    SECTION 1 SUMMARY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES FOR BD-HTS PRODUCTS ..........1-3 SERVICING PRECAUTIONS ..........................1-4 • GENERAL SERVICING PRECAUTIONS • INSULATION CHECKING PRODEDURE • ELECTROSTATICALLY SENSITIVE (ES) DEVICES INITIAL SYSTEM SETUP ..........................1-5 HIDDEN KEY MODE ............................1-7 FIRMWARE UPDATE GUIDE ...........................

  • Page 4: Product Safety Servicing Guidelines For Bd-Hts Products

    When servicing this product, under no circumstances should the original design be modified or altered without permission from LG Corporation. All components should be replaced only with types identical to those in the original circuit and their physical location, wiring and lead dress must conform to original layout upon completion of repairs.

  • Page 5: Servicing Precautions

    SERVICING PRECAUTIONS CAUTION: Before servicing the BD-HTS covered by this ser- Electrostatically Sensitive (ES) Devices vice data and its supplements and addends, read and follow Some semiconductor (solid state) devices can be damaged the SAFETY PRECAUTIONS. easily by static electricity. Such components commonly are NOTE: if unforeseen circumstances create conflict between called Electrostatically Sensitive (ES) Devices.

  • Page 6: Initial System Setup

    INITIAL SYSTEM SETUP When you turn on the unit for the fi rst time, the initial setup wizard appears on the screen. Set the display lan- guage and network settings on the initial setup wizard. 1. Press (POWER). 5. Use / / / to select the IP mode between [Dy- The initial setup wizard appears on the screen.
  • Page 7 9. You can listen to TV sound through HTS speaker automatically when TV is turned on. TV and HTS should be connected with optical cable. Press to move and press to select [On] or [Off ]. Select [Next] and press ENTER ( ). 10.

  • Page 8: Hidden Key Mode

    HIDDEN KEY MODE HIDDEN MODE AVAILABLE STATUS ENTRANCE KEY EXIT KEY DISPLAY PAUSE or HOME SYSTEM DISPLAY SYSTEM (NO DISC||OPEN)&& 1 + 3 + 9 + 7 + 1 +3 + 9 ※ ‘Pause’ Key INFORMATION INFORMATION (Highlight on 16:9 Full) + ENTER or MP2 FACTORY RESET (KEY, VERSION)

  • Page 9: Firmware Update Guide

    FIRMWARE UPDATE GUIDE 1. COPY AN UPDATE FILE TO A MEDIA (USB OR CD-ROM) Update File Name: LG_HB_9010M80.ROM 1) An update fi le have to be copied onto the root of fi le system. 2) USB and CD-ROM are able to use fi rmware update. <...
  • Page 10 2. UPDATE FIRMWARE 1) Insert USB or CD-ROM which has an update fi le. 2) OSD responds to the insertion event. 3) OSD is shown as below. < Firmware Update OSD > OSD contents: Front Panel contents:...
  • Page 11 3. DURING UPDATING 1) Progressive bar is shown on the update time repeatedly. 2) Tray is opened. Front Panel contents: 4. AFTER UPDATE COMPLETE 1) Power off / on automatically after update complete. 2) Tray will be closed. 1-10...

  • Page 12: Network Software Update

    NETWORK SOFTWARE UPDATE You can update the software by connecting your unit directly to the software update server. Confi guring Network Settings To update the software by connecting your player directly to the software update server, your player must be connected to network.
  • Page 13 7) When downloading is completed, the message, “Download is complete. Do you want to update?” appears. 8) Select [OK] to start updating. (Selecting [Cancel] will end the update and downloaded fi le will not be re-usable. To update software the next time, the software update procedure has to be started from the beginning again.) Caution...

  • Page 14: Specifications

    SPECIFICATIONS • GENERAL Power requirements Refer to main label on the rear panel. Power consumption Refer to main label on the rear panel. Dimensions (W x H x D) Approx. 444 mm x 65 mm x 292.5 mm Net Weight (Approx.) 3.5 kg Operating temperature 5 °C to 35 °C (41 °F to 95 °F)
  • Page 15 • SPEAKERS Front speaker (Left/ Right) Type 2 Way 3 speaker Impedance Rated 4 Ω Input Power 180 W Max. Input power 360 W Net Dimensions (W x H x D) 290 mm x 1220 mm x 290 mm Net Weight 5.3 kg Rear speaker (Left/ Right) Type...
  • Page 16 SECTION 2 ELECTRICAL CONTENTS DIGITAL DISPLAY & MEDIA TRAINING MASTER ......................2-2 1. DISTORTED PICTURE .............................. 2-2 2. NO PICTURE ................................2-7 3. PICTURE COLOR ..............................2-12 4. NOISE/AUDIO PROBLEMS ............................. 2-14 5. MISCELLANEOUS ..............................2-17 6. BLU-RAY PLAYER ..............................2-26 ONE POINT REPAIR GUIDE ..............................

  • Page 17: Digital Display & Media Training Master

    DIGITAL DISPLAY & MEDIA TRAINING MASTER Objective: To provide clear and concise guidelines for customer service agents to handle calls on box goods calls. 1. DISTORTED PICTURE 1-1. Lines on Picture Distorted picture refers to the customer getting video, but there is a problem with the video. Determine what cables the customer is using to connect What cables is the BD to the TV and if connected properly.
  • Page 18 DIGITAL DISPLAY & MEDIA TRAINING MASTER 1-2. Ghost Picture Distorted picture refers to the customer getting video, but there is a problem with the video. Determine what cables the customer is using to connect the BD to the TV and if connected properly. Refer to OM for connections. What cables is the customer Tighten any loose cables.
  • Page 19 DIGITAL DISPLAY & MEDIA TRAINING MASTER 1-3. Rolling Picture Distorted picture refers to the customer getting video, but there is a problem with the video. Determine what cables the customer is using to connect the BD to the TV and if connected properly. Refer to OM for connections. What cables is the customer Tighten any loose cables.
  • Page 20 DIGITAL DISPLAY & MEDIA TRAINING MASTER 1-4. Shaky Picture Distorted picture refers to the customer getting video, but there is a problem with the video. Determine what cables the customer is using to connect the BD to the TV and if connected properly. Refer to OM for connections. What cables is the customer Tighten any loose cables.
  • Page 21 DIGITAL DISPLAY & MEDIA TRAINING MASTER 1-5. Blurry Picture Distorted picture refers to the customer getting video, but there is a problem with the video. Determine what cables the customer is using to connect the BD to the TV and if connected properly. Refer to OM for connections. What cables is the customer Tighten any loose cables.

  • Page 22: Picture

    DIGITAL DISPLAY & MEDIA TRAINING MASTER 2. NO PICTURE 2-1. Black Screen The entire screen is black. In case of customer use composite cable please make sure selecting Does the BD on-screen available resolution in the menu of the BD player, composite video can just menu appear? support 480i/p.
  • Page 23 DIGITAL DISPLAY & MEDIA TRAINING MASTER 2-2. Blue Screen The entire screen is a solid blue color. In case of customer use composite cable please make sure selecting Does the BD on-screen available resolution in the menu of the BD player, composite video can just menu appear? support 480i/p.
  • Page 24 DIGITAL DISPLAY & MEDIA TRAINING MASTER 2-3. Snowy Screen A snowy picture is when black and white dots are all over the screen. In case of customer use composite cable please make sure selecting Does the BD on-screen available resolution in the menu of the BD player, composite video can just menu appear? support 480i/p.
  • Page 25 DIGITAL DISPLAY & MEDIA TRAINING MASTER 2-4. No Signal A “no signal” message appears on the screen of the display. In case of customer use composite cable please make sure selecting Does the BD on-screen available resolution in the menu of the BD player, composite video can just menu appear? support 480i/p.
  • Page 26 DIGITAL DISPLAY & MEDIA TRAINING MASTER 2-5. Invalid Format or Format Not Supported Make sure the customer’s simultaneously connecting analog component cable with HDMI cable. And then If Copy Protected Disc is playing back, Is the customer using a analog component output is no picture. Only when the analog output digital cable connection? is 480i, you can see the picture.

  • Page 27: Picture Color

    DIGITAL DISPLAY & MEDIA TRAINING MASTER 3. PICTURE COLOR 3-1. No Color The video displays no color and only shows in black and white. Determine what cables the customer is using to connect the BD What cables is the customer to the TV and if connected properly.
  • Page 28 DIGITAL DISPLAY & MEDIA TRAINING MASTER 3-2. Poor Color The color is poor. Examples would be washed out colors, colors bleeding into one another, or a solid tint to a screen. Determine what cables the customer is using to connect the BD to What cables is the customer the TV and if connected properly.

  • Page 29: Noise/Audio Problems

    DIGITAL DISPLAY & MEDIA TRAINING MASTER 4. NOISE/AUDIO PROBLEMS 4-1. No Audio The customer is not able to get audio. Determine what cables the customer is using to connect the BD to the TV and if connected properly. Refer to OM for connections. What cables is the customer Tighten any loose cables.
  • Page 30 DIGITAL DISPLAY & MEDIA TRAINING MASTER 4-2. Distorted Audio The audio sounds muffled, scratchy, or the audio skips. Determine what cables the customer is using to connect the BD to the TV and if connected properly. Refer to OM for connections. What cables is the customer Tighten any loose cables.
  • Page 31 DIGITAL DISPLAY & MEDIA TRAINING MASTER 4-3. Humming/Clicking Noise The unit is making a humming noise or a clicking noise. BD’s make a slight hum when playing discs. Does the noise only A clicking noise or a noise interfering with audio may indicate a problem. happen when a disc Try multiple discs.

  • Page 32: Miscellaneous

    DIGITAL DISPLAY & MEDIA TRAINING MASTER 5. MISCELLANEOUS 5-1. No Power The unit will not turn on. Is the unit plugged in? Is the unit plugged in? Does the unit turn on See if the unit will turn on when the power button the unit is pressed. when the power button If the unit turns on, then troubleshoot the remote control using is pressed on the unit?
  • Page 33 DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-2. Disc Error The unit displays “disc error” when a disc is inserted into the BD player. Is the disc inserted into Make sure the disc has been inserted into the BD player properly. the BD player properly? The player can not read a disc inserted into the unit upside down.
  • Page 34 DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-3. Unit Locks Up Unit does not respond to any commands. If the unit will turn on or off with the button on the unit, Does the unit respond to troubleshoot the remote control. Please refer to the buttons on the unit? Remote Control Not Working call flow.
  • Page 35 Please refer to the OM for instructions on how to program remote to TV. Customer wants to program a remote Does the customer want to other than Zenith or LG, the customer will need to contact program their remote? the manufacturer of the remote control. Codes do not work, remote is not compatible.
  • Page 36 DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-6. Will Not Play Disc The unit will not play a disc when a disc is inserted into the player. Is the disc inserted into Make sure the disc has been inserted into the BD player properly. the BD player properly? The player can not read a disc inserted into the unit upside down.
  • Page 37 DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-7. Disc Freezes or Skips The audio and video freeze and skip during play back of a BD or DVD disc. Is the disc inserted into Make sure the disc has been inserted into the BD player properly. the BD player properly? The player can not read a disc inserted into the unit upside down.
  • Page 38 DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-8. Can Access Menu, but Not Play a Movie The disc menu is displayed but the disc will not play. Go into the system information screen of the BD player. To access this menu, bring up the main menu. Go to TV aspect, Check the system information highlight 16:9, press 1397139 and hit enter.
  • Page 39 DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-10. Aspect Ratio The customer has bars on the top and bottom of the screen, the left and right of the screen, or both. A full screen movie played on a wide screen TV will have bars Is the movie on the left and right side of the TV.
  • Page 40 DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-11. My Unit Won’t be up-converted The customer has a problem with getting the unit to change resolutions to 480i/p, 720i/p, 1080i, or 1080p. Ask the customer to press stop to stop the disc from playing. Is the disc Ask the customer to press the resolution button to change the resolution.

  • Page 41: Blu-Ray Player

    DIGITAL DISPLAY & MEDIA TRAINING MASTER 6. BLU-RAY PLAYER 6-1. Slow Loading Times for BD’s When a customer switches from one disc to another, Why does it take so long the lens have to be changed what causes the delay. to load my BD’s? BLU-RAY require different lasers to read the discs.

  • Page 42: One Point Repair Guide

    ONE POINT REPAIR GUIDE 1. NO POWER PROBLEM No power problem occurs when you power on the unit. 1-1. Fuse & Bridge diode 1-1-1. Solution Replace F901, BD901 on SMPS board. 1-1-2. How to troubleshoot (Countermeasure) 1) Look at the physical of fuse F901. 2) Check the bridge diode BD901.
  • Page 43 ONE POINT REPAIR GUIDE No power problem occurs when you power on the unit. 1-2. VFD, 14 VA, 6 VA, 3.8 VA 1-2-1. Solution Replace D922, D923, D924, D925, D926, D927, IC901. 1-2-2. How to troubleshoot (Countermeasure) Case 1) FLD abnormal: Check D926, D927, ZD951, ZD952, FR952 and replace it. Case 2) 6 VA abnormal: Check D924 and replace it.

  • Page 44: Booting When You Turn The Unit On, No Message Or "Welcome" On Front Panel

    ONE POINT REPAIR GUIDE 2. NO BOOTING WHEN YOU TURN THE UNIT ON, NO MESSAGE OR “WELCOME” ON FRONT PANEL When you turn on your set, it will blank / no message on front panel, and stand-by led no working. 2-1.
  • Page 45 ONE POINT REPAIR GUIDE When you turn on your set, it will blank / no message or Welcome on front panel, and it will not boot-up. 2-2. IC155_System 3.3 V (No System 3.3 V) 2-2-1. Solution Replace IC155 on MAIN board. 2-2-2.
  • Page 46 ONE POINT REPAIR GUIDE When you turn on your set, it will blank / no message or Welcome on front panel, and it will not boot-up. 2-3. IC150 (No 1.5 V) 2-3-1. Solution Replace IC150 on MAIN board. 2-3-2. How to troubleshoot (Countermeasure) 1) Please check 1.5 V of IC150 on MAIN board.
  • Page 47 ONE POINT REPAIR GUIDE When you turn on your set, it will blank / no message or Welcome on front panel, and it will not boot-up. 2-4. IC150 (No 1.2 V) 2-4-1. Solution Replace IC150 on MAIN board. 2-4-2. How to troubleshoot (Countermeasure) 1) Please check 1.2 V of IC150 on MAIN board.
  • Page 48 ONE POINT REPAIR GUIDE When you turn on your set, it will blank / no message on front panel, and it will not boot-up. 2-5. IC155 (No 3.3 V) 2-5-1. Solution Replace IC155 on MAIN board. 2-5-2. How to troubleshoot (Countermeasure) 1) Please check 3.3 V of IC155 on MAIN board.
  • Page 49 ONE POINT REPAIR GUIDE When you turn on your set, it will display “WELCOME” on front panel, and it will not boot-up normally. 2-6. X501 2-6-1. Solution Replace X501 on MAIN board. 2-6-2. How to troubleshoot (Countermeasure) 1) Please check the soldering status of 27 MHz crystal (X501). 2) Please check the frequency of 27 MHz crystal (X501).
  • Page 50 ONE POINT REPAIR GUIDE When you turn on your set, it will display “WELCOME” on front panel, and it will not boot-up normally. 2-7. IC506 (eMMC FLASH MEMORY) 2-7-1. Solution Replace IC506 on MAIN board. 2-7-2. How to troubleshoot (Countermeasure) 1) Please check physical status of IC506 on your eyes.
  • Page 51 ONE POINT REPAIR GUIDE When you turn on your set, it will display “WELCOME” on front panel, and it will not boot-up normally. 2-8. IC503, IC504, IC505 (DDR3 MEMORY) 2-8-1. Solution Replace IC503, IC504, IC505 on MAIN board. 2-8-2. How to troubleshoot (Countermeasure) 1) Please check 0.75V of DDR3_VREF.
  • Page 52 ONE POINT REPAIR GUIDE When you turn on your set, it will display “WELCOME” on front panel, and it will not boot-up normally. 2-9. IC501 (MPEG IC) 2-9-1. Solution Replace IC501 on MAIN board. 2-9-2. How to troubleshoot (Countermeasure) 1) Please check 1.2 V of C528 on MAIN board. Please check 3.3 V of C501 on MAIN board.
  • Page 53 ONE POINT REPAIR GUIDE When you turn on your set, it will display “WELCOME” on front panel, and it will not boot-up normally. 2-10. MAIN BOARD 2-10-1. Solution Replace MAIN board. 2-10-2. How to troubleshoot (Countermeasure) 1) Please remove IC501 and IC503, IC504, IC505, IC506 and then check the Impedance between each signal (DATA, ADDRESS, and so on).

  • Page 54: Wired Network Connection Error

    ONE POINT REPAIR GUIDE 3. WIRED NETWORK CONNECTION ERROR When you connect online service (like You-tube or Netflix2.1) through the wired LAN, the “no connection“ message appears. 3-1. JK804 (ETHERNET JACK) 3-1-1. Solution Replace JK804 on MAIN board. 3-1-2. How to troubleshoot (Countermeasure) 1) Check you internet connection.

  • Page 55: Wireless Network Connection Error

    ONE POINT REPAIR GUIDE 4. WIRELESS NETWORK CONNECTION ERROR When you connect online service (like You-tube or Netflix2.1) through the Wi-Fi, the “no connection“ message appears. 4-1. Wi-Fi MODULE 4-1-1. Solution Replace Wi-Fi module on FRONT panel. 4-1-2. How to troubleshoot (Countermeasure) 1) Check you internet connection.

  • Page 56: Bad Hdmi Video / Audio Output

    ONE POINT REPAIR GUIDE 5. BAD HDMI VIDEO / AUDIO OUTPUT When unit is connected to HDMI TV using HDMI cable, picture shows bad color, no output or mixed color on the screen. But component output is OK. 5-1. JK802 (HDMI JACK) 5-1-1.

  • Page 57: Audio From Speaker

    ONE POINT REPAIR GUIDE 6. NO AUDIO FROM SPEAKER When unit is connected to speaker, no audio from speaker. 6-1. IC602 (PWM IC) 6-1-1. Solution Replace IC602 (PWM IC). 6-1-2. How to troubleshoot (Countermeasure) 1) Check IC602 pin soldering. 2) If there is short soldering on pin IC602, re-soldering pin IC602. 3) If problem still occurs, check AMP IC (IC700, IC701, IC702).

  • Page 58: Usb

    ONE POINT REPAIR GUIDE 7. NO USB When unit is connected to USB, no audio and video from SET. 7-1. IC501 (MT8580) 7-1-1. Solution Replace IC501 (MT8580). 7-1-2. How to troubleshoot (Countermeasure) 1) Check CN202 connector and FFC cable. 2) If there is short soldering on CN202, re-soldering CN202. 3) If problem still occurs, check 5 V (CN202 pin4 ~ pin8).

  • Page 59: Electrical Troubleshooting Guide

    ELECTRICAL TROUBLESHOOTING GUIDE 1. SYSTEM POWER SUPPLY ON SMPS BOARD No 3.8 VA Replace F901 (same fuse). Is F901 normal? Replace TH901. Is TH901 normal ? Is BD901 normal? Replace BD901. Is the VCC Is D922 / D923 normal? (11 V ~ 25 V) supplied to IC901 pin4? Check or replace D922 / D923.
  • Page 60 ELECTRICAL TROUBLESHOOTING GUIDE No 5 VA ~ 6 VA Replace F901 (same fuse). Is F901 normal? Replace TH901. Is TH901 normal ? Is BD901 normal? Replace BD901. Is the VCC Is D924 normal? (11 V ~ 25 V) supplied to IC901 pin4? Check or replace D924.
  • Page 61 ELECTRICAL TROUBLESHOOTING GUIDE No 13 VA ~ 14 VA Replace F901 (same fuse). Is F901 normal? Replace TH901. Is TH901 normal ? Is BD901 normal? Replace BD901. Is the VCC Is D925 normal? (11 V ~ 25 V) supplied to IC901 pin4? Check or replace D925.

  • Page 62: Amp Power Supply On Smps Board

    ELECTRICAL TROUBLESHOOTING GUIDE 2. AMP POWER SUPPLY ON SMPS BOARD No 36 VA / 26 VA Check MICOM IC. Is the P-CTL normal? Is the VCC Is Q910 normal? (11 V ~ 25 V) supplied to IC902 pin7? Check or replace Q910. Replace IC902.

  • Page 63: Power Supply On Main Board

    ELECTRICAL TROUBLESHOOTING GUIDE 3. POWER SUPPLY ON MAIN BOARD No 3.3 V Is the Check 3.8 VA on SMPS board. VCC supplied to IC155 pin3? Is there Check IC100 pin58 (DCDC33_CTRL). signal at IC155 pin2? Check IC155 and replace. No 3.3 VA (3.3VA_MICOM) Is D101 diode input Check 3.8 VA on MAIN board.
  • Page 64 ELECTRICAL TROUBLESHOOTING GUIDE No 12 V (12V_LOADER) Is the Check 14 VA on SMPS board. VCC supplied to IC153 pin2? Is there Check IC100 pin68 (LDO_CTRL). signal at IC153 pin1? Check IC153 and replace. No 9.5 V (A9P5V) Is the Check IC153 pin4 (12V_LOADER).
  • Page 65 ELECTRICAL TROUBLESHOOTING GUIDE No 5 V (5V_LOADER) Is the Check 6 VA on SMPS board. VCC supplied to IC302 pin2? Is there Check IC100 pin68 (LDO_CTRL). signal at IC302 pin1? Check IC302 and replace. No 3.2 V (DVDD3V15) DSP IC Is the Check VCC_3.7VA on D101.
  • Page 66 ELECTRICAL TROUBLESHOOTING GUIDE No 1.2 V (VCC1.2V) DSP IC Is the Check IC155 pin6 (VCC_3V3). VCC supplied to IC405 pin3? Check IC405 and replace. No 5V_SYSTEM (VCC_5V) Is the Check 6 VA on SMPS board. VCC supplied to IC152 pin2? Is there Check IC100 pin68 (LDO_CTRL).
  • Page 67 ELECTRICAL TROUBLESHOOTING GUIDE No 5V_MIC (AVCC_5V) Is the Check 6 VA on SMPS board. VCC supplied to IC154 pin2? Is there Check IC100 pin68 (LDO_CTRL). signal at IC154 pin1? Check IC154 and replace. No USB_5V Is the Check 6 VA on SMPS board. VCC supplied to IC152 pin2? Is there...
  • Page 68 ELECTRICAL TROUBLESHOOTING GUIDE No 1.5 V Is the Check 14 VA on SMPS board. VCC supplied to IC150 pin13? Is there Check IC100 pin59 (DCDC15_CTRL). signal at IC150 pin15? Check IC150 and replace. No 1.2 V Is the Check 14 VA on SMPS board. VCC supplied to IC150 pin8? Is there...

  • Page 69: System Part

    ELECTRICAL TROUBLESHOOTING GUIDE 4. SYSTEM PART Power on Check D101 Stand-by LED 3.3 VA, 3.8 VA and 3.8 VA on SMPS board. IC100: 3.3 VA / Check IC100 / IC150 / IC155 IC150: 1.5 V, 1.2 V / and SMPS board. IC155: 3.3 V OK? X501 Replace X501.
  • Page 70 ELECTRICAL TROUBLESHOOTING GUIDE “LG Logo” IC100: 3.3 VA / Check IC100 / IC150 / IC155 display on monitor IC150: 1.5 V, 1.2 V / and SMPS board. IC155: 3.3 V OK? X501 27.000 MHz Replace X501. Signal Replace IC506 eMMC_CMD, eMMC_CLK (eMMC Flash).

  • Page 71: Hdmi Output

    ELECTRICAL TROUBLESHOOTING GUIDE 5. NO HDMI OUTPUT No HDMI audio / video output Check H_5VA IC156. JK802 H_5VA OK? IC101 Check IC100. HPD_DET, HDMI_SDA, HDMI_SCL, CEC_RX/TX, EDID_SW OK? JK802 pin19 HP_DET Check hot plug detect signal from TV. about 3.3 V OK? Check IC501 MT8580 VCC Is there signal on pin1, 3, 4, 6, 7, 9, 10, 12?

  • Page 72: Audio Output

    ELECTRICAL TROUBLESHOOTING GUIDE 6. NO AUDIO OUTPUT No AUDIO output IC602 Check IC601 pin2 supply 3.8 VA and pin1. 3.3 V OK? X650 Replace X650. 24.576 MHz OK? Check IC100 IC602 pin19, 20, 21, 22, 23 I2C data OK? and IC401 pin120, 121, 122, 123, 126, 127. IC700, IC701, IC702 Check SMPS 36 V and IC600 12 V.

  • Page 73: Waveforms

    WAVEFORMS 1. SYSTEM PART - 1 (MPEG CRYSTAL 27 MHZ) IC501 MT8580 X-TAL 27 MHz 2-58...

  • Page 74: System Part - 2 (Ddr3 Memory)

    2. SYSTEM PART - 2 (DDR3 MEMORY) MT8580 BA0 MT8580 WE# MT8580 CAS# MT8580 CK 2-59...

  • Page 75: System Part - 3 (Emmc Flash Memory)

    3. SYSTEM PART - 3 (eMMC FLASH MEMORY) 2-60...

  • Page 76: Audio Part - 1 (S/Pdif)

    4. AUDIO PART - 1 (S/PDIF) MT8580_AUDIO_SPDIF IN 2-61...

  • Page 77: Audio Part - 2 (I2S)

    5. AUDIO PART - 2 (I2S) 11 12 13 2-62...

  • Page 78: Hdmi Part

    6. HDMI PART H_SDA H_SCL HDMI_CLK_N HDMI_0_N 2-63...
  • Page 79 MEMO 2-64...

  • Page 80: Wiring Diagram

    WIRING DIAGRAM 24P FFC CABLE CN802 (MAIN – AMP) MAIN 14P HARNESS CABLE (MAIN – SMPS) CN151 CN801 8P B’d to B’d SMPS 5P HARNESS 18P FFC 10P FFC CABLE CABLE CABLE (MAIN – Wi-Fi) (MAIN – JACK) (MAIN – BT) : HARNESS 18P FFC CABLE...

  • Page 81: Block Diagram

    BLOCK DIAGRAM AMP Board MCLK BCK/ LRCK 24.576 MHz A_BCK/A_LRCK CS5346 Tuner D0,1,2,3,4 A_D0,1,2,3,4 DA808 PS9860 TAS5624× 3 Serial/F PWM _RST... 16 MB PCM1808 K_D0 Wireless Board SDRAM 24.576 MHz 20MHZ 16 MB Optical SMSC Module UART D0,1,2,4 Ethernet Wireless MICOM WL_CLK...

  • Page 82: Circuit Diagrams

    BE MODIFIED OR ALTERED WITH OUT PERMISSION 1. SMPS CIRCUIT DIAGRAM WAY, IMPLEMENTATION OF THE LATEST SAFETY during Play mode. FROM THE LG CORPORATION. ALL COMPONENTS AND PERFORMANCE IMPROVEMENT CHANGES SHOULD BE REPLACED ONLY WITH TYPES INTO THE SET IS NOT DELAYED UNTIL THE NEW IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT.

  • Page 83: Main - Micom Circuit Diagram

    2. MAIN - MICOM CIRCUIT DIAGRAM MICOM EAX65592401(#1) Rev1.3(7) 2013.11.21 2-71 2-72...

  • Page 84: Main - Power Circuit Diagram

    3. MAIN - POWER CIRCUIT DIAGRAM POWER EAX65592401(#2) Rev1.3(7) 2013.11.21 2-73 2-74...

  • Page 85: Main - Mpeg Circuit Diagram

    4. MAIN - MPEG CIRCUIT DIAGRAM 11 12 13 : WAVEFORM NUMBER MPEG EAX65592401(#3) Rev1.3(7) 2013.11.21 2-75 2-76...

  • Page 86: Main - Memory Circuit Diagram

    5. MAIN - MEMORY CIRCUIT DIAGRAM : WAVEFORM NUMBER MEMORY EAX65592401(#4) Rev1.3(7) 2013.11.21 2-77 2-78...

  • Page 87: Main - Front End Circuit Diagram

    6. MAIN - FRONT END CIRCUIT DIAGRAM EAX65592401(#5) Rev1.3(7) 2013.11.21 2-79 2-80...

  • Page 88: Main - Dsp Circuit Diagram

    7. MAIN - DSP CIRCUIT DIAGRAM EAX65592401(#6) Rev1.3(7) 2013.11.21 2-81 2-82...

  • Page 89: Main - Adc/ Mic Circuit Diagram

    8. MAIN - ADC/ MIC CIRCUIT DIAGRAM : WAVEFORM NUMBER ADC/MIC EAX65592401(#7) Rev1.3(7) 2013.11.21 2-83 2-84...

  • Page 90: Main - I/O Circuit Diagram

    9. MAIN - I/O CIRCUIT DIAGRAM : WAVEFORM NUMBER EAX65592401(#8) Rev1.3(7) 2013.11.21 2-85 2-86...

  • Page 91: Amp - Pwm Circuit Diagram

    10. AMP - PWM CIRCUIT DIAGRAM EAX65033801(#1) Rev1.7(10) 2013.11.21 2-87 2-88...

  • Page 92: Amp - Amp Circuit Diagram

    11. AMP - AMP CIRCUIT DIAGRAM EAX65033801(#2) Rev1.7(10) 2013.11.21 2-89 2-90...
  • Page 93 12. JACK CIRCUIT DIAGRAM (OPTIONAL PART) 12-1. USB/ PORTABLE/ MIC CIRCUIT DIAGRAM JACK(USB+PORT+MIC) EAX65038603 Rev1.2(2) 2013.11.21 2-91 2-92...

  • Page 94: Jack Circuit Diagram (Optional Part)

    JACK CIRCUIT DIAGRAM (OPTIONAL PART) 12-2. USB/ PORTABLE CIRCUIT DIAGRAM JACK(USB+PORT) EAX65038701 Rev1.5(6) 2013.11.21 2-93 2-94...

  • Page 95: Front Circuit Diagram

    13. FRONT CIRCUIT DIAGRAM FRONT EAX65053001 Rev1.4(4) 2012.12.11 2-95 2-96...

  • Page 96: Touch Circuit Diagram

    14. TOUCH CIRCUIT DIAGRAM TOUCH EAX64992201 Rev1.6(6) 2013.11.21 2-97 2-98...

  • Page 97: Circuit Voltage Chart

    CIRCUIT VOLTAGE CHART 1. ICs 2. CAPACITORS Pin No. Pin Name Spec. (V) Stand-by Mode EE Mode (V) Pin No. Pin Name Spec. (V) Stand-by Mode EE Mode (V) EE Mode Standby Location Value & Voltage_ IC100 (MICOM) IC305 (AZ1117BH) Positive Negative Positive...

  • Page 98: Printed Circuit Board Diagrams

    PRINTED CIRCUIT BOARD DIAGRAMS 1. SMPS P. C. BOARD NOTE) Warning Parts that are critical with respect to risk (TOP VIEW) (BOTTOM VIEW) of fire or electrical shock. 2-101 2-102...
  • Page 99 2. MAIN P. C. BOARD (TOP VIEW) 2-103 2-104...

  • Page 100: Main P. C. Board

    MAIN P. C. BOARD (BOTTOM VIEW) 2-105 2-106...

  • Page 101: Amp P. C. Board

    3. AMP P. C. BOARD (TOP VIEW) (BOTTOM VIEW) 2-107 2-108...

  • Page 102: Jack P. C. Board (Optional Part)

    4. JACK P. C. BOARD (OPTIONAL PART) 4-1. USB/ PORTABLE/ MIC P. C. BOARD (TOP VIEW) (BOTTOM VIEW) 4-2. USB/ PORTABLE P. C. BOARD (TOP VIEW) (BOTTOM VIEW) 2-109 2-110...

  • Page 103: Front P. C. Board

    5. FRONT P. C. BOARD (TOP VIEW) (BOTTOM VIEW) 6. TOUCH P. C. BOARD (TOP VIEW) (BOTTOM VIEW) 2-111 2-112...
  • Page 104 SECTION 3 CABINET & MAIN CHASSIS CONTENTS EXPLODED VIEWS ............................3-3 1. CABINET AND MAIN FRAME SECTION ....................3-3 2. DECK MECHANISM SECTION ........................ 3-5 3. PACKING ACCESSORY SECTION ......................3-7 4. SPEAKER SECTION ..........................3-8 4-1. CENTER SPEAKER .......................... 3-8 4-2.
  • Page 105 MEMO...

  • Page 106: Exploded Views

    EXPLODED VIEWS 1. CABINET AND MAIN FRAME SECTION NOTES) THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE. OPTIONAL PART 250L CABLE3 CABLE5 Wi-Fi CABLE6 CABLE2 CABLE4 JACK...

  • Page 107: Deck Mechanism Section

    MEMO 2. DECK MECHANISM SECTION 1436 1006 A002 1001 A003 A001 1435 1005 1003 1008 1004 1007 1013 1012 A004 1002 1014 1009 1020 1015 1011 A005 1016 1017 1030 1024 1437 1024 1031 1024 1437 1437 1021 1049 1024 1437 1438...

  • Page 108: Packing Accessory Section

    3. PACKING ACCESSORY SECTION 801 Owner’s manual 808 Batteries 825 FM antenna 826 Filter (Ferrite Core) 840 Wireless TX dongle 832 CD title 900 Remote control 804 Bag 803 Packing 803 Packing 802 Box, Master Speaker cables WIRE80 White (Front left) WIRE81 Red (Front right) WIRE70...

  • Page 109: Speaker Section

    4. SPEAKER SECTION 4-1. CENTER SPEAKER A700...

  • Page 110: Front/ Rear Speaker

    4-2. FRONT/ REAR SPEAKER A800 A800T A800B A800M...

  • Page 111: Passive Subwoofer

    4-3. PASSIVE SUBWOOFER A900...

  • Page 112: Wireless Receiver Section

    5. WIRELESS RECEIVER SECTION NOTES) THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE. A330 390L A81A RCN301 390R A81S SMPS A81M WIRELESS...
  • Page 113 MEMO 3-12...
  • Page 114 SECTION 4 MT8580 F/E LOADER PART CONTENTS LD CHECK GUIDE ............................4-2 1. PURPOSE ..............................4-2 2. LD CHECK PROCEDURE ........................4-2 HOW TO USE THE SA RESET FUNCTION ..................4-4 1. PURPOSE ..............................4-4 2. REQUIRED SA RESET..........................4-4 3.

  • Page 115: Ld Check Guide

    LD CHECK GUIDE 1. PURPOSE If LD (Laser Diode) have problem, disc reading problem can happen. So this option can check LD status. 2. LD CHECK PROCEDURE 1) Power on the set (then, mode is in home menu). 4 ) Check result is shown automatically. If you will see “PASS”, BD/DVD/CD LD status is OK.

  • Page 116: How To Use The Sa Reset Function

    HOW TO USE THE SA RESET FUNCTION 1. PURPOSE In order to insert the new SA adjustment values, it needs clearing SA initial values of the flash memory. 2. REQUIRED SA RESET - After changing traverse. - After changing main board assembly. - After changing main board flash IC.
  • Page 117 4) Insert BD-ROM SL disc. (Tray is opened automatically.) 5) If the disc is inserted, you will see “Wait...”. 6 ) If SA Adjustment is fi nished, you will see “PASS” and tray is opened automatically. 7) Press stop key twice to escape this special mode. Reference:...

  • Page 118: Major Ic Internal Block Diagram And Pin Description

    MAJOR IC INTERNAL BLOCK DIAGRAM AND PIN DESCRIPTION 1. IC501 (MT8580) 1-1. Pin Function PIN NO. SYMBOL TYPE DESCRIPTION AGND33_1 Analog Ground Analog Ground AGND33_2 Analog Ground Analog Ground AGND33_3 Analog Ground Analog Ground AGND12_1 Analog Ground Analog Ground AGND12_2 Analog Ground Analog Ground AVDD12_1...
  • Page 119 PIN NO. SYMBOL TYPE DESCRIPTION LDD serial interface CLK. 3.3V LVTTL I/O, The pin is spike-free at power-on stage. 5V-tolerance, The pin is not allowed to pull-up in circuit layout. FEGIO1 2, 4, 6, 8 mA PDR, Alternate function : 75K pull-down (0 V) 1.
  • Page 120 PIN NO. SYMBOL TYPE DESCRIPTION Analog Input Input of Sub-Beam Signal (E) Analog Input Input of Sub-Beam Signal (F) Analog Input Input of Sub-Beam Signal (G) Analog Input Input of Sub-Beam Signal (H) Multiplexer Output 1 for Signal Monitoring. The pin is not allowed to pull-up in circuit layout. MPXOUT1 Analog Output Alternate function : Internal monitored signal output / General...

  • Page 121: Ic701 (Tpic2050): 9Ch Motor Drive With 3 Beam Laser Diode Driver

    2. IC701 (TPIC2050) : 9ch motor drive with 3 beam laser diode driver 2-1. Block Diagram P12V P12V 0.1u 0.1u ICOM1 ICOM2 Charge XSLEEP  pump SIOV 0.1 . Current limit ISENSE XSLEEP MCOM SPM Logic BEMF On chip SPM̲ENA  DAC PWM detector thermometer SIOV TEMPMON_ENA pre-...
  • Page 122 2-2. Pin Function Name Description SLED1_P Sled1 positive output terminal SLED1_N Sled1 negative output terminal P12V_3 Power supply terminal for 12V drivers output SLED2_P Sled2 positive output terminal SLED2_N Sled2 negative output terminal PGND_2 GND terminal for 12V drivers C10V MISC The capacitance connection terminal for internal regulator MISC...

  • Page 123: Pick-Up Connector Terminal Pin Assignments

    3. PICK-UP CONNECTOR TERMINAL PIN ASSIGNMENTS PIN NO. PIN NAME FUNCTION BLOCK Outer Focus (+) Outer Focus (-) Tracking (+) Actuator Inner Focus (+) Tracking (-) Inner Focus (-) MOTOR_A- Step Motor A- MOTOR_B- Step Motor B- CLD Motor MOTOR_A+ Step Motor A+ MOTOR_B+ Step Motor B+...

  • Page 124: Block Diagram

    BLOCK DIAGRAM NAND DDR3 Flash 32 bit 32 bit 7.1 CH I2S audio 2 CH I2S audio Audio S/PDIF HDMI 1.4 (3D, 4k2k) MT8580D Component Monitor Ethernet CVBS A9 + 3D GPU OPTIONAL 3 x USB 2.0 Video Processor 4-11...
  • Page 125 MEMO 4-12...
  • Page 126 SECTION 5 WIRELESS RECEIVER PART CONTENTS FIRMWARE UPDATE FOR WIRELESS DEVICE ..................... 5-2 1. WIRELESS RX UPDATE METHOD ....................... 5-2 2. WIRELESS TX MODULE UPDATE METHOD ..................5-2 ONE POINT REPAIR GUIDE ..........................5-3 1. NO POWER PROBLEM ......................... 5-3 2.

  • Page 127: Firmware Update For Wireless Device

    FIRMWARE UPDATE FOR WIRELESS DEVICE 1. WIRELESS RX UPDATE METHOD Update must be performed without interference. 1) Select “1” on test band. - You must select a band without interference. 2) USB update - During the software update procedure, do not turn off the unit. 2-1) Copy the update fi...

  • Page 128: One Point Repair Guide

    ONE POINT REPAIR GUIDE 1. NO POWER PROBLEM No power problem occurs when you power on the unit. 1-1. Fuse & Bridge diode 1-1-1. Solution Replace F901, BD901 on SMPS board. 1-1-2. How to troubleshoot (Countermeasure) 1) Look at the physical of fuse F901. 2) Check the bridge diode BD901.
  • Page 129 ONE POINT REPAIR GUIDE NO POWER PROBLEM No power problem occurs when you power on the unit. 1-2. PVDD (36 V) abnormal 1-2-1. Solution Replace D951, IC901. 1-2-2. How to troubleshoot (Countermeasure) Case 1) PVDD (36 V) abnormal: Check D951 and replace it. Case 2) If case 1 is not problem: Check IC901 and replace it.
  • Page 130 ONE POINT REPAIR GUIDE 2. NO SOUND Wireless rear speaker doesn’t output a sound. 2-1. SMPS Board (No PVDD) 2-1-1. Solution Check SMPS board (No PVDD). 2-1-2. How to troubleshoot (Countermeasure) Check LED color of RX BOX. Try to reset. Color is yellow? Check SMPS board.

  • Page 131: Sound

    ONE POINT REPAIR GUIDE NO SOUND Wireless rear speaker doesn’t output a sound. 2-2. RIC311 (No 12 V) 2-2-1. Solution Replace RIC311 (No 12 V). 2-2-2. How to troubleshoot (Countermeasure) AMP 12 V (RIC311 pin2) Check SMPS board. output. Check 3.3 V. 2-2-3.
  • Page 132 ONE POINT REPAIR GUIDE NO SOUND Wireless rear speaker doesn’t output a sound. 2-3. RIC307 (No 3.3 V) 2-3-1. Solution Replace RIC307 (No 3.3 V). 2-3-2. How to troubleshoot (Countermeasure) 5 VA PWM 3.3 V Check SMPS board (RIC312 pin2) (RIC307 pin4) (PVDD).

  • Page 133: Electrical Troubleshooting Guide

    ELECTRICAL TROUBLESHOOTING GUIDE 1. POWER SUPPLY ON SMPS BOARD No 36 VA/ 17 VA Check the MICOM. P-CTRL High- PVDD : 36 V Is the P-CTRL normal ? P-CTRL Low - PVDD : 17 V Is the VCC Check or replace: Q901, ZD902, ZD901. P-CTRL High - VCC : 20 V (13 V ~ 22 V) supplied to IC901 P-CTRL Low - VCC : 12 V...

  • Page 134: Pairing

    ELECTRICAL TROUBLESHOOTING GUIDE 2. NO PAIRING No pairing Check LED status. interference. Yellow LED blinks irregularly. Turn off the equipment that gives interference. Wireless reset. Red LED is turned on. Check SMPS board or module connection.

  • Page 135: Sound

    ELECTRICAL TROUBLESHOOTING GUIDE 3. NO SOUND No sound Check sound status. interference. Sound cut off irregularly. Turn off the equipment that gives interference. Check LED status. Wireless reset. LED is Red. AMP PVDD Check SMPS board. (RCN301 pin6 ~ 8) no output. AMP 12 V (RIC311 pin2) Check RIC311.

  • Page 136: Waveforms

    WAVEFORMS 1. AUDIO PART (I2S) RCN303 pin1 : I2S LRCK RCN303 pin3 : I2S BCK RCN303 pin20 : I2S Audio Data 5-11...
  • Page 137 MEMO 5-12...

  • Page 138: Wiring Diagram

    WIRING DIAGRAM SMPS 10pin Harness RCN303 26pin 0.5mm FFC Wireless Module 5-13 5-14...

  • Page 139: Block Diagram

    BLOCK DIAGRAM OPTION RESISTOR Rear SPK Connector PS9854 3.3V S7127F KIA7042 RL (RL) 3.3VA TAS5624 Reset P_SENSE RL_OUT RL_3D (RR) RL_3D_OUT (RR_OUT) I2C, PWM_RST, I2S_AUDIO DWAM83 AMP_PDN AMP_SD Woofer SPK Connector RR_OUT (SW_OUT) RR (Woofer) Serial RR_3D_OUT TAS5624 Flash RR_3D (XX) DC-DC (5VA) Woof er Only Paring S/W...

  • Page 140: Circuit Diagrams

    MODIFIED OR ALTERED WITH OUT PERMISSION FROM LATEST SAFETY PERFORMANCE mode. THE LG CORPORATION. ALL COMPONENTS SHOULD BE IMPROVEMENT CHANGES INTO THE SET IS NOT DELAYED REPLACED ONLY WITH TYPES IDENTICAL TO THOSE UNTIL THE NEW SERVICE LITERATURE IS PRINTED. No Power...

  • Page 141: Amp #1 Circuit Diagram

    2. AMP #1 CIRCUIT DIAGRAM : WAVEFORM NUMBER W-AMP EAX64464451 Rev1.6(6) 2013.03.19 5-19 5-20...

  • Page 142: Amp #2 Circuit Diagram

    3. AMP #2 CIRCUIT DIAGRAM W-AMP EAX64464451 Rev1.6(6) 2013.03.19 5-21 5-22...

  • Page 143: Printed Circuit Board Diagrams

    PRINTED CIRCUIT BOARD DIAGRAMS 1. SMPS P. C. BOARD (TOP VIEW) (BOTTOM VIEW) NOTE) Warning Parts that are critical with respect to risk of fire or electrical shock. 5-23 5-24...

  • Page 144: Amp P. C. Board

    2. AMP P. C. BOARD (TOP VIEW) (BOTTOM VIEW) 5-25 5-26...
  • Page 145 MEMO MEMO 5-27 5-28...

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