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LG BH5140S, Руководство по обслуживанию

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2-1

SECTION 2  

ELECTRICAL

CONTENTS

DIGITAL DISPLAY & 
MEDIA TRAINING MASTER

 ................................

2-2

 

1

1. DISTORTED PICTURE ................................... 2-2

 

1

2. NO PICTURE .................................................. 2-7

 

1

3. PICTURE COLOR ......................................... 2-12

 

1

4. NOISE/AUDIO PROBLEMS .......................... 2-14

 

1

5. MISCELLANEOUS ........................................ 2-17

 

1

6. BD-HTS ......................................................... 2-26

 

1

ONE POINT REPAIR GUIDE

 .............................

2-27

  1. NO POWER PROBLEM .................................. 2-27
 2.  NO BOOTING WHEN YOU TURN THE 

UNIT ON, NO MESSAGE OR “PLEASE 
WAIT”ON FRONT PANEL .............................. 2-29

  3. WIRED NETWORK CONNECTION ERROR.. 2-38
  4. BAD HDMI VIDEO / AUDIO OUTPUT ............ 2-39
  5. NO SPEAKER OUTPUT ................................. 2-40

ELECTRICAL TROUBLESHOOTING GUIDE

 ..

2-41

 1.  SYSTEM POWER SUPPLY ON 

SMPS BOARD ................................................ 2-41

  2. AMP POWER SUPPLY ON SMPS BOARD ... 2-42
  3. POWER SUPPLY ON MAIN BOARD ............. 2-43
  4. SYSTEM PART ............................................... 2-44
  5. NO AUDIO OUTPUT ....................................... 2-45
  6. NO HDMI OUTPUT ......................................... 2-47

WAVEFORMS

 ......................................................

2-48

  1. SYSTEM PART - 1 ......................................... 2-48
  2. SYSTEM PART - 2 (SYSTEM MEMORY) ...... 2-49
  3. AUDIO PART - 1 (S/PDIF) .............................. 2-50
  4. AUDIO PART - 2 (I2S) .................................... 2-51
  5. HDMI PART .................................................... 2-52

WIRING DIAGRAM

 .............................................

2-53

BLOCK DIAGRAM

 ..............................................

2-55

CIRCUIT DIAGRAMS

 .........................................

2-57

 

1

1. SMPS - POWER CIRCUIT DIAGRAM .......... 2-57

 

1

2. MAIN - MICOM CIRCUIT DIAGRAM ............ 2-59

 

1

3. MAIN - POWER CIRCUIT DIAGRAM ........... 2-61

 

1

4. MAIN - CPU CIRCUIT DIAGRAM ................. 2-63

 

1

5. MAIN - MEMORY CIRCUIT DIAGRAM ........ 2-65

 

1

6. MAIN - LOADER CIRCUIT DIAGRAM .......... 2-67

 

1

7. MAIN - ADC/ DIR CIRCUIT DIAGRAM......... 2-69

 

1

8. MAIN - I/O CIRCUIT DIAGRAM .................... 2-71

 

1

9. AMP - PWM CIRCUIT DIAGRAM ................. 2-73

  10. AMP - AMP CIRCUIT DIAGRAM .................. 2-75
  11. JACK CIRCUIT DIAGRAM 
       (OPTIONAL PART) ........................................ 2-77
  12. FRONT CIRCUIT DIAGRAM ........................ 2-81

CIRCUIT VOLTAGE CHART

 .............................

2-83

PRINTED CIRCUIT BOARD DIAGRAMS

 .........

2-85

  1. SMPS P. C. BOARD ....................................... 2-85
  2. MAIN P. C. BOARD ........................................ 2-87
  3. AMP P.C.BOARD ............................................ 2-89
  4. JACK P. C. BOARD (OPTIONAL PART) ........ 2-91
  5. FRONT P. C. BOARD ..................................... 2-93

Содержание BH5140S

Страница 1: ...ome Theater System SERVICE MANUAL MODEL BH5140S BH5140S S54S1 S S54T1 W CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL Website http biz lgservice com Internal Use Only MODEL BH5140S BH5140S S54S1 S S54T1 W SERVICE MANUAL ...

Страница 2: ...1 1 CONTENTS SECTION 1 SUMMARY SECTION 2 ELECTRICAL SECTION 3 CABINET MAIN CHASSIS SECTION 4 MT8560 F E LOADER PART SECTION 5 REPLACEMENT PARTS LIST ...

Страница 3: ...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 6 FIRMWARE UPDATE GUIDE 1 7 NETWORK SOFTWARE UPDATE 1 10 SPECIFICATIONS 1 12 ...

Страница 4: ... sharp solder points Be certain to remove all loose foreign par ticles 4 Check for physical evidence of damage or deterioration to parts and compo nents for frayed leads or damaged insulation including the AC cord and replace if necessary 5 No lead or component should touch a high current device or a resistor rated at 1 watt or more Lead tension around protruding metal surfaces must be avoided 6 A...

Страница 5: ...tal panels Input terminals Earphone jacks etc Electrostatically Sensitive ES Devices Some semiconductor solid state devices can be damaged easily by static electricity Such components commonly are called Electrostatically Sensitive ES Devices Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components The following techniques should be...

Страница 6: ... Select Next and press ENTER 6 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 S to move and press W X to select On or Off Select Next and press ENTER 7 Check all the settings that you have set in the previous steps Press ENTER while Finish is highlighted to finish the initial setup settings If there is any s...

Страница 7: ... 8 0 ENTER RETURN PAUSE 1 PLATFORM INFORMATION 2 HDMI CONNECTTON INFORMATION 3 WIRELESS INFORMATION EEPROM INITIAL POWER ON STATUS Front STOP RMC 0 for 5 seconds Auto exit E2P CLEAR DOOR LOCK DVD FUNCTION and POWER ON STATUS Front STOP RMC STOP for 5 seconds Toggling D LOCK display for 3 seconds DOOR UNLOCK DVD FUNCTION and POWER ON STATUS Front STOP RMC STOP for 5 seconds Toggling D UNLOCK displa...

Страница 8: ...IDE 1 COPY AN UPDATE FILE TO A MEDIA USB OR CD ROM Update File Name LG_HB_9000M60 ROM 1 An update file have to be copied onto the root of file system 2 USB and CD ROM are able to use firmware update Example Nero Burning Rom ...

Страница 9: ...1 8 2 UPDATE FIRMWARE 1 Insert USB or CD ROM which has an update file 2 OSD responds to the insertion event 3 OSD is shown as below Firmware Update OSD OSD contents Front Panel contents ...

Страница 10: ...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 ...

Страница 11: ... the server Downloading will takes several minutes depending You can update the software by connecting your unit directly to the software update server Configuring Network Settings To update the software by connecting your player directly to the software update server your player must be connected to network If your player is not connected to network make a physical connection Note Before updating...

Страница 12: ... and downloaded file will not be re usable To update software the next time the software update procedure has to be started from the beginning again Caution Do not turn off the power during the software update 9 When update is completed the power will be turned off automatically in a few seconds 10 Turn the power back on The system now operates with the new version ...

Страница 13: ...0 dB 600 Ω RCA jack L R x 1 DIGITAL IN OPTICAL 3 V p p Optical jack x 1 PORT IN 0 5 Vrms 3 5 mm stereo jack x 1 TUNER FM Tuning Range 87 5 to 108 0 MHz or 87 50 to 108 00 MHz AMPLIFIER Power output 4 3 Ω RMS THD 10 Total 500 W Front 80 W x 2 Center 80 W Rear 80 W x 2 Sub Woofer 100 W Passive SYSTEM Laser Semiconductor laser wavelength 405 nm 650 nm Signal system Standard NTSC color TV system Frequ...

Страница 14: ...74 mm x 128 mm x 66 mm 2 9 inches x 5 0 inches x 2 6 inches Net Weight 0 39 kg 0 8 lbs Center speaker Type 1 Way 1 speaker Impedance Rated 4 Ω Input Power 80 W Max Input power 160 W Net Dimensions W x H x D 74 mm x 128 mm x 66 mm 2 9 inches x 5 0 inches x 2 6 inches Net Weight 0 39 kg 0 8 lbs Subwoofer Type 1 Way 1 speaker Impedance Rated 3 Ω Input Power 100 W Max Input power 200 W Net Dimensions ...

Страница 15: ...1 14 MEMO ...

Страница 16: ...T 2 45 6 NO HDMI OUTPUT 2 47 WAVEFORMS 2 48 1 SYSTEM PART 1 2 48 2 SYSTEM PART 2 SYSTEM MEMORY 2 49 3 AUDIO PART 1 S PDIF 2 50 4 AUDIO PART 2 I2S 2 51 5 HDMI PART 2 52 WIRING DIAGRAM 2 53 BLOCK DIAGRAM 2 55 CIRCUIT DIAGRAMS 2 57 11 SMPS POWER CIRCUIT DIAGRAM 2 57 12 MAIN MICOM CIRCUIT DIAGRAM 2 59 13 MAIN POWER CIRCUIT DIAGRAM 2 61 14 MAIN CPU CIRCUIT DIAGRAM 2 63 15 MAIN MEMORY CIRCUIT DIAGRAM 2 ...

Страница 17: ...e issue is a problem with the disc Multiple discs displaying the problem could indicate the BD lens needs to be cleaned Recommend the customer use a lens cleaner on the BD A lens cleaner is available at any local electronics retailer Do lines appear when watching a TV program NO YES Lines appearing when watching a TV program indicates an issue with the display If the TV program is fine then connec...

Страница 18: ...ner is available at any local electronics retailer Do lines appear when watching a TV program NO YES Ghosting appearing when watching a TV program indicates an issue with the display If the TV program is fine then connect theBD to another input on the display to determine if the problem is following the BD Does ghosting appear when the BD is connected to another TV NO YES Connect the BD to another...

Страница 19: ...ner is available at any local electronics retailer Does rolling appear when watching a TV program NO YES Rolling appearing when watching a TV program indicates an issue with the display If the TV program is fine then connect the BD to another input on the display to determine if the problem is following the BD Does rolling appear when the BD is connected to another TV NO YES Connect the BD to anot...

Страница 20: ...ner is available at any local electronics retailer Does shaking appear when watching a TV program NO YES Shaking appearing when watching a TV program indicates an issue with the display If the TV program is fine then connect the BD to another input on the display to determine if the problem is following the BD Does shaking appear when the BD is connected to another TV NO YES Connect the BD to anot...

Страница 21: ...s available at any local electronics retailer Does blurriness appear when watching a TV program NO YES Blurriness appearing when watching a TV program indicates an issue with the display If the TV program is fine then connect the BD to another input on the display to determine if the problem is following the BD Does blurriness appear when the BD is connected to another TV NO YES Connect the BD to ...

Страница 22: ...t Turn TV off then on to determine input Video when using composite or component DVI when using DVI and HDMI when using HDMI Is the customer able to watch TV programming NO YES If the customer is not able to watch television then he may have a problem with his television especially if the cable signal comes through on a different input If the customer can not get a TV program then he still may hav...

Страница 23: ... composite or component DVI when using DVI and HDMI when using HDMI Is the customer able to watch TV programming NO YES If the customer is not able to watch television then he may have a problem with his television especially if the cable signal comes through on a different input If the customer can not get a TV program then he still may have a problem with the particular input on his TV Can the c...

Страница 24: ...omponent DVI when using DVI and HDMI when using HDMI Is the customer able to watch TV programming NO YES If the customer is not able to watch television then he may have a problem with his television especially if the cable signal comes through on a different input If the customer can not get a TV program then he still may have a problem with the particular input on his TV Can the customer connect...

Страница 25: ...ct input Turn TV off then on to determine input Video when using composite or component DVI when using DVI and HDMI when using HDMI Is the customer able to watch TV programming NO YES If the customer is not able to watch television then he may have a problem with his television especially if the cable signal comes through on a different input If the customer can not get a TV program then he still ...

Страница 26: ...mpliant NO YES Make sure the display is HDCP compliant when using a DVI or HDMI connection A lack of HDCP compliancy on the display may cause an invalid format or format not supported message to appear It can also cause a copy protection OSD to appear Has the customer tried the device on another display NO YES Ask the customer to connect the device to another display If the device starts working t...

Страница 27: ...playable discs in the owners manual Multiple discs displaying the problem indicates a problem with BD HTS Does color appear when watching a TV program NO YES If the cable or satellite programming is connected through another input and the customer does not get color the customer has a problem with his television If a TV program does have the color the problem may be BD HTS the cables being used or...

Страница 28: ...h the BD by checking playable discs in the owners manual Multiple discs displaying the problem indicates a problem with BD HTS Is color fine when watching a TV program NO YES If the cable or satellite programming is connected through another input and the customer does not get color the customer has a problem with his television If a TV program does have the color the problem may be BD HTS the cab...

Страница 29: ... multiple discs could indicate a lens cleaner is needed The customer can purchase a lens cleaner at any electronics retailer Problem occur when watching TV program NO YES No audio from a TV program on a different channel or input means there is a problem with the television If a TV program does have the audio the problem may be BD HTS the cables being used or the TV itself Does the problem occur w...

Страница 30: ...tiple discs could indicate a lens cleaner is needed The customer can purchase a lens cleaner at any electronics retailer Problem occur when watching TV program NO YES Distorted audio from a TV program on a different channel or input means there is a problem with the television If a TV program does have the audio the problem may be BD HTS the cables being used or the TV itself Does the problem occu...

Страница 31: ...ed multiple tapes and discs NO YES YES If the issue only shows up on one disc then the problem is with that disc Have the customer try multiple tapes or discs If the issue happens on multiple discs and tapes then ask the customer to try a lens or a head cleaner Has the customer connected to another TV NO Ask the customer to connect the product to another TV If the issue persists try another set of...

Страница 32: ... unit plugged into a surge protector NO YES Make sure the surge protector is plugged into a wall outlet Also make sure the surge protector is turned on or does not need to be reset due to a recent surge Does the unit work when plugged into another outlet NO YES Test the unit in another outlet If the unit works then the problem is the outlet where the unit was connected If the issue is the BD then ...

Страница 33: ...e customer initialized a DVD RW in VR mode make sure the owners manual has the RW logo to show compatibility for the VR format Did the customer burn the disc in a computer NO YES Make sure the customer burned a compatible format such as VCD SVCD or DivX Make sure the file meets the specifications required for BD HTS to play the disc Check the owners manual for specifications Disc may still not be ...

Страница 34: ...en reset the unit by unplugging it for 15 to 30 seconds If the unit does not respond after the reset arrange for service on the BD Does the open close button on the unit work NO YES Press the open close button on the unit If the disc ejects troubleshoot the remote using the Remote Control Not Working call flow Has the customer reset the unit NO Ask the customer to reset the unit by unplugging the ...

Страница 35: ...teries are new and fresh The batteries do not need to come from a spare battery drawer Do not mix used and new batteries Is the remote working at all NO YES YES If the remote does not work anything then walk the customer through a remote drain Remove the batteries from the remote control Then press and hold any button down for a minute This will drain the power out of the remote and reset it Unive...

Страница 36: ...omer initialized a DVD RW in VR mode make sure the owners manual has the RW logo to show compatibility for the VR format Did the customer burn the disc in a computer NO YES Make sure the customer burned a compatible format such as VCD SVCD or DivX Make sure the file meets the specifications required for BD HTS to play the disc Check the owners manual for specifications Disc may still not be compat...

Страница 37: ...itialized a DVD RW in VR mode make sure the owners manual has the RW logo to show compatibility for the VR format Did the customer burn the disc in a computer NO YES Make sure the customer burned a compatible format such as VCD SVCD or DivX Make sure the file meets the specifications required for BD HTS to play the disc Check the owners manual for specifications Disc may still not be compatible Re...

Страница 38: ...e of the DVD disc is not 1 then the DVD disc will not play on a HTS sold in the US BD HTS can play only DVD discs labeled same as the rear of the unit Is the disc locking up on a disclaimer screen when the customer presses play NO The disc locking up on a feature needs to be reported to Q E See instructions on reporting problems to Q E For a work around the problem advise the customer to access th...

Страница 39: ...ke sure BD HTS aspect ratio is set to the appropriate setting depending on the aspect ratio of the TV If the customer chose 4 3 Letterbox then bars will appear on the top and bottom The customer can choose the panscan setting to get rid of the bars What is the resolution of BD HTS set at NO YES Try changing the resolution to 480p 720p 1080i and 1080p resolution require a widescreen aspect ratio wh...

Страница 40: ...ected discs will not upconvert when HDCP is not found on the input or output Is the customer using an HDMI to DVI cable NO YES Regular discs can convert to 1080p over the HDMI output and only the HDMI output The TV has to have HDCP compliancy on the HDMI input The display has to accept the resolution 480p 720p 1080i or 1080p Is the customer using an HDMI or DVI cable NO YES Some movie companies wi...

Страница 41: ...th interactive BD movie menu BD HTS can support BD2 0 so that network function is active in the BD disc Also BD HTS can support VOD service such as Netflix USA only Why is not the item downloaded through the network Make sure the customer insert the LAN cable into the Ethernet jack Make sure the network is active If it is active the disc may have a problem If not active see the network section of ...

Страница 42: ... 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 1 1 3 Service hint Any picture Remark SMPS board top view No Power BD901 is Defective No Power F901 is Defective S W Error IC901 IC902 are Defective Fuse F901 Can look at the physical condition ...

Страница 43: ...3 8 VA abnormal Check D918 and replace it Case 5 All Voltage abnormal Check IC902 and replace it 1 2 3 Service hint Any picture Remark FLD No Power D950 is Defective Vkk No Power D951 is Defective V ZD95 6 3 VA No Power D952 is Defective 13 VA No Power D953 is Defective No Power D911 is Defective ONE POINT REPAIR GUIDE SMPS board top view CASE 4 CASE 4 CASE 3 CASE 3 CASE 1 CASE 1 CASE 5 CASE 5 CAS...

Страница 44: ...AIT display on front panel and it will not boot up 2 1 D101 NO 3 3 VA 2 1 1 Solution Replace D101 on MAIN board 2 1 2 How to troubleshoot Countermeasure 1 Please check 3 7 VA yellow signal 2 If 3 7 VA is abnormal please check SMPS board 3 If 3 7 VA is OK but 3 3 VA is abnormal replace D101 2 1 3 Service hint Any picture Remark Main board top view A 3 7 VA B 3 3 VA D101 ...

Страница 45: ...7 VA please check 3 7 VA from SMPS board For the solution please back to the solution 1 3 If 3 7 VA input is normal first of all check DCDC3 3_CTRL is high IC101 pin58 If DCDC3 3_CTRL is high check R129 R181 and if there s no defective component then replace IC155 4 If DCDC3 3_CTRL isn t high you may need to replace IC101 5 After changing it if the set is still not booting Refer to the next page f...

Страница 46: ...out check IC153 pin8 VCC 14 VA 3 If VIN1 pin8 of IC153 is not 14 VA First check CN150 and if there s no defective component please check SMPS board 4 After fixing it if the set is still not booting Check L154 and finally check IC153 or replace 5 After fixing it if the set is still not booting Refer to the next page for checking another power source 3 3 V 1 5 V Check Crystal X501 refer to item 2 5 ...

Страница 47: ...out check IC153 pin13 VCC_14VA 3 If VIN2 pin13 of IC153 is not 14 VA First check CN150 and if there s no defective component please check SMPS board 4 After fixing it if the set is still not booting Check L153 and finally check IC153 or replace 5 After fixing it if the set is still not booting Refer to the next page for checking another power source 3 3 V 1 2 V Check Crystal X501 refer to item 2 5...

Страница 48: ...MAIN board 2 5 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 3 If the crystal doesn t oscillate replace X501 4 After changing it if the set is still not booting Check NAND Flash IC IC504 refer to item 2 6 Check DDR IC IC502 IC503 refer to item 2 7 Check MT8560 IC IC501 refer to item 2 8 2 5 3 Serv...

Страница 49: ...Replace IC504 on MAIN board 2 6 2 How to troubleshoot Countermeasure 1 Please check physical status of IC504 on your eyes 2 Check the VCC 3 3 V of IC504 and if it s normal please replace IC504 Please make sure IC504 has proper program 3 After changing it if the set is still not booting Check DDR IC IC502 IC503 refer to item 2 7 Check MT8560 IC IC501 refer to item 2 8 2 6 3 Service hint Any picture...

Страница 50: ...on MAIN board 2 7 2 How to troubleshoot Countermeasure 1 Please check 0 75 V of DDR3_VREF C545 Please check 1 5 V of C523 2 If it doesn t work even though IC153 IC155 IC101 are no problem IC502 IC503 DDR memory could have problem 3 After changing it if the set is still not booting Check MT8560 IC IC501 refer to item 2 8 Check MAIN board refer to item 2 9 2 7 3 Service hint Any picture Remark Main ...

Страница 51: ...ow to troubleshoot Countermeasure 1 Please check 1 2 V Please check 3 3 V Please check 1 5 V Please check RESET IC101 pin73 2 If it doesn t work even though 1 2 V 1 5 V 3 3 V power and RESET are no problem IC501 MT8560 could have problem 3 If RESET isn t high you may need to replace IC101 4 After changing it if the set is still no booting check MAIN board refer to item 2 9 2 8 3 Service hint Any p...

Страница 52: ...2 9 MAIN BOARD 2 9 1 Solution Replace MAIN board 2 9 2 How to troubleshoot Countermeasure 1 Please remove IC501 IC504 and then check the Impedance between each signal DATA ADDRESS and so on 2 If there is some Impedance a few Ω or infinite Ω especially power source trace PCB via might be bro ken You d better replace MAIN board 2 9 3 Service hint Any picture Remark Main board bottom view IC501 IC503...

Страница 53: ...o troubleshoot Countermeasure 1 Check you internet connection Make sure it connect properly to modem or router 2 If internet connection OK please check the ethernet Jack JK250 3 If there is soldering problem please re soldering pin JK250 4 If after re soldering problem still occurs replace JK250 5 If problem still occurs after replace JK250 Check MT8560 IC IC501 Refer to item 2 8 3 1 3 Service hin...

Страница 54: ...n But component output is OK 4 1 JK801 HDMI JACK 4 1 1 Soulution Replace JK801 HDMI jack 4 1 2 How to troubleshoot Countermeasure 1 Check JK801 pin soldering 2 If there is short soldering on pin JK801 re soldering pin JK801 3 If problem still occurs check D801 D802 R838 R839 If issue still NG replace IC501 4 1 3 Service hint Any picture Remark Main board top view JK801 ...

Страница 55: ... at CN601 If 36 V 14 VA 3 8 VA voltage doesn t come out re soldering pin CN601 2 Check voltage at IC700 IC701 IC702 If 36 V 12 V voltage doesn t come out check IC600 and SMPS board 3 Check the AMP_SD signal of pin22 at CN600 If this pin is low replace IC700 IC701 IC702 4 If problem still occurs replace AMP board 5 1 3 Service hint Any picture Remark AMP board top view IC600 12 V CN600 AMP_SD pin22...

Страница 56: ...01 normal Is TH901 normal Is BD901 normal Is BD901 normal Is the VCC 11 V 25 V supplied to IC902 pin5 Is the VCC 11 V 25 V supplied to IC902 pin5 Replace F901 same fuse Replace F901 same fuse Replace TH901 Replace TH901 Replace BD901 Replace BD901 Is D918 normal Is D952 normal Check or replace D918 Check or replace D952 NO NO NO NO NO NO NO NO YES YES YES YES YES YES YES YES YES YES YES YES ...

Страница 57: ...al Is the VCC 11 V 25 V supplied to IC901 pin7 Is BD901 normal Is IC901 normal Is the VCC 11 V 25 V supplied to IC901 pin5 Is Q902 normal Is D955 normal Replace F901 same fuse Check the MICOM IC Replace TH901 Is Q901 normal Check or replace Q901 Replace BD901 Replace IC901 Is D953 normal Replace Q902 Replace D955 Check or replace D953 NO NO NO NO NO NO NO NO NO YES YES YES YES YES YES YES YES YES ...

Страница 58: ...VCC 6 VA supplied to IC152 pin2 Is there H signal at IC152 pin1 Check 6 VA on SMPS Board Check IC101 pin68 LDO_CTRL NO NO YES YES YES No 1 2 V Check IC153 and replace Is the VCC 14 VA supplied to IC153 pin8 Is there 1 2 V at IC153 pin9 Check 14 VA on SMPS Board Check IC101 pin60 DCDC12_CTRL NO NO YES YES YES No 1 5 V Check IC153 and replace Is the VCC 14 VA supplied to IC153 pin13 Is there 1 5 V a...

Страница 59: ... monitor OK LG Logo display on monitor oK IC101 3 3VA_MICOM 3 3 V OK IC501 VCC 1 2 V 1 5 V 3 3 V OK 3 3 VA FL FL OK X101 20 000 MHz OK X501 27 000 MHz OK IC504 NF_ALE NF_CLE OK VFD_STB VFD_CLK VFD_RX OK Check D101 and SMPS board Check IC153 IC155 and SMPS board Check Q303 Q308 and SMPS board Replace X101 Replace X501 Replace IC504 NAND Flash Assemble properly Check IC101 and CN305 NO NO NO NO NO N...

Страница 60: ... CN254 pin11 12 15 signal OK R612 R613 signal OK CN600 pin24 22 18 17 16 signal OK IC700 pin35 39 signal OK Check JK203 or replace Check IC201 or replace X201 trace Check IC201 or replace Check IC501 s I2S output trace Check IC602 s I2S output trace Check IC101 s signal trace Check IC700 s signal or re place IC700 IC701 IC702 NO NO NO NO NO NO NO YES YES YES YES YES YES YES YES ...

Страница 61: ... 5A CN251 pin4 6 audio L R OK TUN201 pin1 2 3 4 signal OK IC200 pin43 42 41 signal OK TUN201 pin7 8 audio L R OK IC200 pin43 42 41 signal OK Check CN251 and JACK PCB Check IC101 or replace Check IC200 or replace Check TUN201 or replace Check IC200 or replace NO NO NO NO NO YES YES YES YES YES YES YES YES ...

Страница 62: ...us OK JK801 pin19 HPD about 3 3 V OK JK801 pin18 VCC 5 V OK Is there signal on R836 R837 Is there signal on TMDS Replace JK801 Check VCC 5 V line Check hot plug detect signal from TV Check I2C trace from IC501 Check TMDS trace from IC501 NO NO NO NO NO YES YES YES YES YES YES 6 NO HDMI OUTPUT ...

Страница 63: ...2 48 WAVEFORMS 1 SYSTEM PART 1 IC501 MT8560 X TAL 27 MHz 1 1 ...

Страница 64: ...2 49 2 SYSTEM PART 2 SYSTEM MEMORY IC501 MT8560 BA0 2 IC501 MT8560 WE 3 IC501 MT8560 CAS 4 IC501 MT8560 CK 5 4 3 2 5 ...

Страница 65: ...2 50 3 AUDIO PART 1 S PDIF CS8422_AUDIO_SPDIF IN 6 6 ...

Страница 66: ...2 51 4 AUDIO PART 2 I2S tjsr ijr syjr kh hW 7 8 9 10 7 8 9 10 ...

Страница 67: ...2 52 5 HDMI PART H_SDA 11 H_SCL 12 HDMI_CLK_N 13 HDMI_0_N 14 11 13 12 14 ...

Страница 68: ...N AMP SMD 18P DIP 14P T SMD 45P SMD 8P SMD 5P SMD A 18P SMD 24P SMD 24P SMPS DIP A 18P PICK UP MD SMD 45P SMD 8P SMD 5P FAN DIP 2P DIP 14P T DIP 8 PIN Male Female CN101 CN250 CN254 CN303 CN301 CN302 CN251 CN150 CN600 CN601 CN902 CN901 CN202 CN305 WIRING DIAGRAM ...

Страница 69: ...IG Aux Tuner M_LRCK M_BCK M_DATA0 1 2C DIR_RST CLK DAT 24 576 MHz M Driver 9ch TPIC2050 OPU 8P MOTOR 5P SLOT 4P TRAY RF A B C D E F Pickup 45P FFC USB D D 5V CP Chip DDR3 X2 384 MB NAND 512 MB MICOM UPD78F1164 UART E2P 20 MHz AMP Board AMP TAS5612Ý3 PWM PS9860 24 576 MHz Front Board VFD MC3401 DIR_BCK LRCK DATA VOL VFD KEY Portable 27 MHz Ethernet MIC_DATA TX RX HDMI TMDS DDC CEC HPD PWM_RST BLOCK...

Страница 70: ...d are critical with respect to risk of fire or electrical shock CIRCUIT DIAGRAMS 1 SMPS CIRCUIT DIAGRAM IMPORTANT SAFETY NOTICE WHEN SERVICING THIS CHASSIS UNDER NO CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN BE MODIFIED OR ALTERED WITH OUT PERMISSION FROM THE LG CORPORATION ALL COMPONENTS SHOULD BE REPLACED ONLY WITH TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT SPECIAL COMPONENTS ARE SHADED ON T...

Страница 71: ...2 60 2 59 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T MICOM EAX65105302 2 Rev1 1 1 2013 01 21 2 MAIN MICOM CIRCUIT DIAGRAM ...

Страница 72: ...2 62 2 61 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T POWER EAX65105302 3 Rev1 1 1 2013 01 21 3 MAIN POWER CIRCUIT DIAGRAM ...

Страница 73: ...2 64 2 63 7 8 9 10 4 3 2 5 1 WAVEFORM NUMBER A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T CPU EAX65105302 4 Rev1 1 1 2013 01 21 4 MAIN CPU CIRCUIT DIAGRAM ...

Страница 74: ...2 66 2 65 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T MEMORY EAX65105302 5 Rev1 1 1 2013 01 21 5 MAIN MEMORY CIRCUIT DIAGRAM ...

Страница 75: ...2 68 2 67 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T LOADER EAX65105302 6 Rev1 1 1 2013 01 21 6 MAIN LOADER CIRCUIT DIAGRAM ...

Страница 76: ...2 70 2 69 6 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T ADC DIR EAX65105302 7 Rev1 1 1 2013 01 21 WAVEFORM NUMBER 7 MAIN ADC DIR CIRCUIT DIAGRAM ...

Страница 77: ...2 72 2 71 11 13 12 14 WAVEFORM NUMBER A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T I O EAX65105302 8 Rev1 1 1 2013 01 21 8 MAIN I O CIRCUIT DIAGRAM ...

Страница 78: ...2 74 2 73 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T PWM EAX65033801 1 Rev1 7 10 2013 11 21 9 AMP PWM CIRCUIT DIAGRAM ...

Страница 79: ...2 76 2 75 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T AMP EAX65033801 2 Rev1 7 10 2013 11 21 10 AMP AMP CIRCUIT DIAGRAM ...

Страница 80: ... 78 2 77 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T JACK USB PTB MIC EAX64545101 1 Rev1 2 3 2011 12 27 11 JACK CIRCUIT DIAGRAM OPTIONAL PART 11 1 USB PORTABLE MIC CIRCUIT DIAGRAM ...

Страница 81: ...2 80 2 79 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T JACK USB PTB EAX64562101 Rev1 1 1 2011 12 27 JACK CIRCUIT DIAGRAM OPTIONAL PART 11 2 USB PORTABLE CIRCUIT DIAGRAM ...

Страница 82: ...2 82 2 81 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T FRONT EAX64672602 Rev1 0 0 2012 02 13 12 FRONT CIRCUIT DIAGRAM ...

Страница 83: ...3 725 6 VOUT 3 281 IC200 CS5346 Top Side 5 VLC 3 279 14 VA 4 99 36 VLS 3 28 46 VD 3 278 IC201 CS8422 Top Side 3 VA 3 324 21 VL 3 332 IC206 PCM1808 Top Side 3 5V VCC 5 3 4 3 3V VDD 3 316 IC301 TPIC2050 Bottom Side 3 P12V_3 12 54 Pin No Desc Voltage 56 P5V_2 5 01 IC302 AZ1117 Bottom Side 3 INPUT 12 84 4 OUTPUT 9 45 IC303 LM27152 Bottom Side 2 INPUT 6 84 4 OUTPUT 4 95 IC501 MT8560 Bottom Side E16 AVD...

Страница 84: ...2 86 2 85 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 ...

Страница 85: ...2 88 2 87 2 MAIN P C BOARD TOP VIEW BOTTOM VIEW ...

Страница 86: ...2 90 2 89 3 AMP P C BOARD TOP VIEW BOTTOM VIEW ...

Страница 87: ...2 92 2 91 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 ...

Страница 88: ...2 94 2 93 5 FRONT P C BOARD TOP VIEW BOTTOM VIEW ...

Страница 89: ...2 96 2 95 MEMO MEMO ...

Страница 90: ...T 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 FRONT CENTER REAR SPEAKER 3 8 4 2 PASSIVE SUBWOOFER 3 9 ...

Страница 91: ...3 2 MEMO ...

Страница 92: ...462 A E B C D G F MAIN H A46 462 261 261 263 A43 279 A A41 CABLE2 462 JACK K 300 G 452 CABLE3 A50 281 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 ...

Страница 93: ...1439 A001 1002 1001 1016 1013 1015 1020 1012 1043 A005 1439 1045 1018 1019 1026 1011 1005 1030 1003 1011 1035 1050 1049 1437 1025 1025 1024 1024 1437 A006 1004 2 DECK MECHANISM SECTION MEMO ...

Страница 94: ...3 PACKING ACCESSORY SECTION 900 Remote control 803 Packing 802 Box Mater 832 CD title 801 Owner s manual 808 Battery 804 Bag 803 Packing 825 FM antenna ...

Страница 95: ...4 SPEAKER SECTION 4 1 FRONT CENTER REAR SPEAKER A600 Rear SPK A700 Center SPK A800 Front SPK ...

Страница 96: ...A900 4 2 PASSIVE SUBWOOFER ...

Страница 97: ...3 10 MEMO ...

Страница 98: ... TO USE THE SA RESET FUNCTION 4 4 1 PURPOSE 4 4 2 REQUIRED SA RESET 4 4 3 SA RESET PROCEDURE 4 4 MAJOR IC INTERNAL BLOCK DIAGRAM AND PIN DESCRIPTION 4 5 1 IC501 MT8560 4 5 2 IC701 TPIC2050 9CH MOTOR DRIVE WITH 3 BEAM LASER DIODE DRIVER 4 8 3 PICK UP CONNECTOR TERMINAL PIN ASSIGNMENTS 4 10 BLOCK DIAGRAM 4 11 ...

Страница 99: ...ECK PROCEDURE 1 Power on the set then mode is in home menu 2 Press Setup 3 Under DISPLAY highlighted condition press 5 1 7 7 7 7 7 Enter on the remote controller to display special mode Move to the 1 Laser Check and click 4 Check result is shown automatically If you will see PASS BD DVD CD LD status is OK LD CHECK GUIDE ...

Страница 100: ... 7 7 7 7 7 Enter on the remote controller to display special mode Move to 3 SA IOP Reset and click 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 3 SA RESET PROCEDURE ...

Страница 101: ...L disc Tray is opened automatically 5 If the disc is inserted you will see Wait 6 If SA Adjustment is finished you will see PASS and tray is opened automatically 7 Press stop key twice to escape this special mode Reference ...

Страница 102: ... 3V LVTTL I O 5V tolerance 6 mA driving 75K pull up 3 3 V Eject stop key input active low The pin is spike free at power on stage Alternate function General IO R1 FEFG 3 3V LVTTL I O 5V tolerance 6 mA PDR 75K pull up 3 3 V Motor Hall sensor input The pin is spike free at power on stage N1 FEFMO Analog Output Feed motor 1 control DAC output N2 FEFMO2 Analog Output Feed motor 2 control DAC output N3...

Страница 103: ...R6 FEGIO4 Analog Output Read gain switch 4 Alternate function 1 LCD serial interface command enable 2 LCD_DRV Sqare wave output for LCD control 3 Internal monitored signal output 4 General IO N5 FEGIO5 Analog Output Read gain switch 6 Alternate function 1 SIDM 2 LCD serial interface command enable 3 Internal monitored signal output 4 General IO N7 FEGIO6 Analog Output Read gain switch 6 The pin is...

Страница 104: ...ng RF SUM Signal Negative G1 RFIP Analog Input Differential Input of AC Coupling RF SUM Signal Positive H1 RFIP2 Analog Input Differential Input of AC Coupling RF SUM Signal Positive J3 TLO Analog Output Tilt servo output T2 FETRAYIN_ 3 3V LVTTL I O 5V tolerance 6 mA 75K pull up 3 3 V Tray_is_in Input A Logical Low Indicates the Tray is IN Feed back Flag is from Tray Connector The pin is spike fre...

Страница 105: ...D END detection STEP END detection DAC PWM DAC PWM DAC PWM DAC PWM DAC PWM DAC PWM DAC PWM P5V P5V P12V int 3 3V Regulator A5V P5V int 10V Regulator Analog 5V DAC P12V SLD ENA TLT ENA DIFF TLT TEMPMON_ENA TRK ENA STP ENA SPM ENA power monitor SIOV 200k 200k SIOV 33k 19V LOAD ENA F B F B F B F B F B SLD ENA TPIC2050 On chip thermometer pre driver power FET pre driver power FET pre driver power FET ...

Страница 106: ...al 27 ILDD_CD OUT Laser diode for CD output terminal 28 CP5V MISC The capacitance connection terminal for control system power supply 0 1uF or lager decoupling capacitor should be connected 29 LOAD_P OUT Load positive output terminal 30 LOAD_N OUT Load negative output terminal 31 P5V12L PS The power supply terminal 5V or 12V for Load driver output stages 32 TEST2 MISC Test pin Should be open 33 TE...

Страница 107: ...ub PD Mode Change 23 RF BD DVD CD RF 24 RF BD DVD CD RF 25 NC NC 26 SW1 Mode BD DVD CD Mode Change 27 VREF_PD 2 1V PDIC Reference 2 1V 28 VCC_PD 5V PDIC Power 5V 29 GND_PD PDIC GND 30 SW Gain BD DVD CD Gain Change 31 LD GND GND_LD LD Monitor Part 32 BD_LD LD Control BD 33 CD_LD LD Control CD 34 DVD_LD LD Control DVD 35 GND_LD LD Ground 36 TEMP Thermistor 37 NC NC 38 CD DVD_MPD Monitor output DVD C...

Страница 108: ...1 BLOCK DIAGRAM OPU Ethernet 7 1 CH 2 CH S PDIF HDMI Component CVBS DVO Motor Driver USB NAND 1GB DDR3 256 384 MB Audio DAC MT8560 HD SD Decode 810 MHz ARM11 400 MHz Audio DSP x 3 HDMI 1 4 Ethernet Monitor ...

Страница 109: ...4 12 MEMO ...

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