manualshive.com logo in svg

LG SoundPlate lab550h, Service Manual, Page: 70 / 107

Share
Download
LG SoundPlate lab550h Service Manual Download Page 70

 

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

SMPS

EAX66205101 Rev1.8(17)

2014.12.23

Warning
Parts that are shaded are critical with
respect to risk of fire or electrical shock.

     No Power

BD900 is Defective

     No Power

F900 is Defective

     No Power

Q901 is Defective

     No Power

D900 is Defective

     No Power

D991 is Defective

     Switching Error

IC901 is Defective

     Switching Error

PC900 is Defective

     Switching Error

IC950 is Defective

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 THE 
SCHEMATIC FOR EASY IDENTIFICATION.
 THIS CIRCUIT DIAGRAM MAY OCCASIONALLY 
DIFFER FROM THE ACTUAL CIRCUIT USED. THIS 
WAY, IMPLEMENTATION OF THE LATEST SAFETY 
AND PERFORMANCE IMPROVEMENT CHANGES 
INTO THE SET IS NOT DELAYED UNTIL THE NEW 
SERVICE LITERATURE IS PRINTED.

NOTE : 

 1.  

Shaded(   ) parts are critical for safety. Replace only
with specified part number.

 2.  

Voltages are DC-measured with a digital voltmeter
during Play mode.

Summary of Contents for SoundPlate lab550h

Page 1: ...Y 2015 SoundPlate All in one Home Theater SERVICE MANUAL MODEL LAB550H CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL Website http biz lgservice com Internal Use Only MODEL LAB550H SERVICE MANUAL ...

Page 2: ...1 1 CONTENTS SECTION 1 SUMMARY SECTION 2 ELECTRICAL SECTION 3 CABINET MAIN CHASSIS SECTION 4 MT8553 F E LOADER PART SECTION 5 REPLACEMENT PARTS LIST ...

Page 3: ...OR BD PLATE 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 1 9 NETWORK SOFTWARE UPDATE 1 10 SPECIFICATIONS 1 12 ...

Page 4: ...r 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 ...

Page 5: ...e Metal 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 shoul...

Page 6: ...ity on your access point you need to input the security code as necessary 5 Use to select the IP mode between Dynamic and Static Normally select Dynamic to allocate an IP address automatically 6 Select Next and press ENTER to apply network settings Network connection status is displayed on the screen For details on network settings refer to O M Connecting to your Home Network 7 Select Next and pre...

Page 7: ...ess ENTER while Finish is highlighted to finish the initial setup settings If there is any settings to be changed use to select and press ENTER 10 Displays private sound mode guide Press ENTER 11 Displays the guide to enjoy online contents using LG AV Remote Press ENTER 1 ...

Page 8: ...use 1 7 3 9 pause 1 7 3 9 display LOC UNLOC VFD for 3 sec Enter leave Front Lock mode by toggle See the Demo Lock sheet System Log Save to Flash ALWAYS AVAILABLE Clear key RCU 3 seconds Hold simulta neously X OK VFD Save Log Data to Flash Change Resolution ALWAYS AVAILABLE Push Stop key 5 sec X 480P or 576P on VFD Change the Resolution to 480P or 576P Chage Video System Open and Home Menu OFF Vide...

Page 9: ...TATUS Front Stop RMC Stop for 5s Toggling D UNLOCK display for 3s Version Check POWER ON STATUS Front Stop RMC Play for 5s POWER OFF M 0807031 Display MICOM Ver OPTION CODE Touch Key Ver EEPROM INITIAL POWER ON STATUS Front Stop RMC 0 for 5s auto exit E2P CLEAR EEPROM EDIT POWER ON STATUS Front Stop RMC 2 for 5s Toggling OP0 10 Wireless spk remate POWER ON STATUS Front Stop RMC mute REMATE 2 MICOM...

Page 10: ...DATE 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 Caution Do not turn off the power during the software update Note If the software includes the driver update disc tray may open during the process 3 AFTER UPDATE COMPLETE 1 When update is completed the power will be turned off automatically in a few seconds 2 Turn the power b...

Page 11: ... in your player remove any disc and USB Device from the player Before updating the software in your player turn the player off and then turn it back on During the software update procedure do not turn off the player or disconnect AC power or do not press any button If you cancel the update turn off the power and turn it on for stable performance This unit cannot be updated to previous software ver...

Page 12: ...ay may open during the process 8 When update is completed the power will be turned off automatically in a few seconds 9 Turn the power back on The system now operates with the new version Note The Software Update function may not work properly depending on your internet environment In this case you can obtain the latest software from the authorized LG Electronics Service Center then update your pl...

Page 13: ...tereo jack x 1 HDMI IN 19 Pin Type A HDMI connector x 2 HDMI OUT 19 Pin Type A HDMI connector x 1 Available Digital Input Audio Sampling Frequency 32 kHz 44 1 kHz 48 kHz 96 kHz 192 kHz AMPLIFIER Total 100 W Front 50 W x 2 4 Ω at 1 kHz THD 10 SYSTEM Laser Semiconductor laser wavelength 405 nm 650 nm Signal system Standard NTSC color TV system LAN port Ethernet jack x 1 10BASE T 100BASE TX Wireless ...

Page 14: ...NO HDMI OUTPUT 2 48 5 NO AUDIO OUTPUT 2 49 WAVEFORMS OF MAJOR CHECK POINT 2 50 1 SYSTEM PART 1 MPEG CRYSTAL 27 MHz 2 50 2 SYSTEM PART 2 DDR3 MEMORY 2 51 3 AUDIO PART 1 DSP I2C 2 52 4 AUDIO PART 2 DSP I2S 2 53 5 HDMI PART 2 54 WIRING DIAGRAM 2 55 BLOCK DIAGRAM 2 57 CIRCUIT DIAGRAMS 2 59 1 SMPS CIRCUIT DIAGRAM 2 59 2 MAIN MICOM CIRCUIT DIAGRAM 2 61 3 MAIN POWER CIRCUIT DIAGRAM 2 63 4 MAIN MPEG MEMOR...

Page 15: ... 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 multiple discs NO YES One disc displaying the issue is a problem with the disc Multiple discs displaying the problem could indicate the BD lens needs to be cleaned R...

Page 16: ...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 the BD 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 anothe...

Page 17: ...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...

Page 18: ...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 n 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 anoth...

Page 19: ...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 ...

Page 20: ... TV is on the correct 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 pro...

Page 21: ...ine 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 have a problem with the particular...

Page 22: ... 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 have a problem with the particular input on his T...

Page 23: ...ut 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 have a problem with the particular input ...

Page 24: ... menu Is the display HDCP compliant 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...

Page 25: ...e discs in the owners manual Multiple discs displaying the problem indicates a problem with the BD player 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 the BD player the cables being ...

Page 26: ...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 the BD player the cables being used or the TV itself Is color fine when the BD is connected to another TV NO YES Connect the BD to another TV an...

Page 27: ...ltiple 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 the BD player the cables being used or the TV itself Does the problem occ...

Page 28: ...e 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 the BD player the cables being used or the TV itself Does the problem occur when DVD is connected to another TV NO YES Audio is fine when the B...

Page 29: ...ied 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 o...

Page 30: ...ged 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 set up ser...

Page 31: ...the 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 the player to play the disc Check the owners manual for specifications Disc may still n...

Page 32: ...hen 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...

Page 33: ...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...

Page 34: ...tomer 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 the player to play the disc Check the owners manual for specifications Disc may still not be c...

Page 35: ...er 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 the player to play the disc Check the owners manual for specifications Disc may still not be comp...

Page 36: ...ion code of the DVD disc is not 1 then the DVD disc will not play on a player sold in the US The player 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 custome...

Page 37: ...e sure the BD player 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 the BD player set at NO YES Try changing the resolution to 576p 720p 1080i 1080p resolution require a widescreen aspect...

Page 38: ... issue Copy protected discs will not be up converted when HDCP is not found on the input or output Is the customer using an HDMI or DVI cable NO YES Regular discs can be converted to 1080p just through the HDMI output The TV must have HDCP compliancy on the HDMI input The display has to accept the resolution 576p 720p 1080i 1080p Is the customer using an HDMI to DVI cable NO YES Some movie compani...

Page 39: ... When a customer switches from one disc to another the lens have to be changed what causes the delay BLU RAY require different lasers to read the discs Why does it take so long to boot my BD NO The booting times for the BD is under 15 seconds When the set is booted it takes a little long time to loading the OS program 6 2 Booting Times ...

Page 40: ...BD900 on SMPS board 1 1 2 How to troubleshoot Countermeasure 1 Check if the fuse F900 is open or short circuit 2 Check if the bridge diode BD900 is short circuit by over current with a digital multimeter 1 1 3 Service hint Any picture Remark SMPS board top view If the fuse is open replace it with a same specification s one If BD900 is short circuit replace it with a new one F900 F900 BD900 BD900 ...

Page 41: ...blem repair the set according to the following guide 1 2 24 V main power 1 2 1 Solution Replace Q901 D991 on SMPS board 1 2 2 How to troubleshoot Countermeasure 1 Check Q901 and replace it with a new one 2 Check D991 and replace it with a new one 1 2 3 Service hint Any picture Remark SMPS board top view ...

Page 42: ... NO 3 3 VA 2 1 1 Solution Replace IC152 on MAIN board 2 1 2 How to troubleshoot Countermeasure 1 Please Check 3 3 VA of IC101 2 If 3 3 VA is abnormal please check 12 VA of L187 3 If 12 VA is OK but 3 3 VA is abnormal replace IC152 2 1 3 Service hint Any picture Remark MAIN board top view MAIN board bottom view IC101 IC101 L187 L187 IC152 IC152 ...

Page 43: ...e is no 3 3 V please check 3 3 V from IC157 3 If VCC input IC153 there are 12 VA First of all check the pin5 is high and if it s high if there s no defective component please replace IC153 If VCC input IC155 there are 3 3 V if there s no defective component please replace IC155 4 After changing it if the set is still not booting Check 1 2 V 1 5 V 3 3 V is normal please refer to other sections of t...

Page 44: ...ermeasure 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 IC502 refer to item 2 4 Check DDR IC IC503 refer to item 2 5 Check MT8553 IC IC501 refer to item 2 6 2 3 3 Service hint Any picture Remark MAIN board top view ...

Page 45: ... How to troubleshoot Countermeasure 1 Please check physical status of IC502 on your eyes 2 Check the VCC 3 3 V of IC502 and if it s normal please replace IC502 Please make sure IC502 has proper Program 3 After changing it if the set is still not booting Check DDR IC IC503 refer to item 2 5 Check MT8553 IC IC501 refer to item 2 6 2 4 3 Service hint Any picture Remark MAIN board bottom view IC502 IC...

Page 46: ...03 on MAIN board 2 5 2 How to troubleshoot Countermeasure 1 Please check 0 75 V of DDR3_VREF R567 Please check 1 5 V of IC155 2 If it doesn t work even though IC155 is no problem IC503 DDR memory could have problem 3 After changing it if the set is still not booting Check MT8553 IC IC501 refer to item 2 6 2 5 3 Service hint Any picture Remark MAIN board top view IC503 IC503 ...

Page 47: ... board 2 6 2 How to troubleshoot Countermeasure 1 Please Check 1 2 V of C528 on MAIN board Please Check 3 3 V of C509 on MAIN board Please Check 1 5 V of C503 on MAIN board 2 If it doesn t work even though IC153 IC155 IC157 are no problem IC501 MT8553 could have problem 2 6 3 Service hint Any picture Remark MAIN board bottom view MAIN board top view C503 C503 C509 C509 C528 C528 ...

Page 48: ...w to 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 JK242 3 If there is soldering problem please re soldering pin JK242 4 If after re soldering problem still occurs replace JK242 5 If problem still occurs after change JK242 check MT8553 IC IC501 Refer to item 2 6 3 1 3 Service h...

Page 49: ...to troubleshoot Countermeasure 1 Check you internet connection Make sure it connect properly to modem or router 2 If internet connection OK please check the CN241 3 If there is soldering problem please re soldering pin CN241 4 If after re soldering problem still occurs replace Wi Fi module 5 If problem still occurs after change Wi Fi module check MT8553 IC IC501 Refer to item 2 6 4 1 3 Service hin...

Page 50: ... 1 CN803 HDMI JACK 5 1 1 Solution Replace CN803 HDMI Jack 5 1 2 How to troubleshoot Countermeasure 1 Check CN803 pin soldering 2 If there is short soldering on pin CN803 re soldering pin CN803 3 If problem still occurs check HDMI data If all data OK replace CN803 If data NG check set on BD Mode Replace IC501 5 1 3 Service hint Any picture Remark MAIN board top view HDMI IN HDMI IN HDMI OUT HDMI OU...

Page 51: ...3 AMP IC IC701 DAC IC 6 1 2 How to troubleshoot Countermeasure 1 Check IC703 pin soldering 2 If there is short soldering on pin IC703 re soldering pin IC703 3 If problem still occurs check DAC IC IC701 Check IC701 IC702 pin soldering If soldering ok check the IC401 DSP IC 6 1 3 Service hint Any picture Remark MAIN board top view IC701 IC701 IC703 IC703 IC401 IC401 ...

Page 52: ...How to troubleshoot Countermeasure 1 Check JK241 pin soldering 2 If there is short soldering on JK241 re soldering JK241 3 If problem still occurs check 5V JK241 pin1 If no output check MAIN board IC158 If OK check D D signal If there is no signal replace IC501 7 1 3 Service hint Any picture Remark MAIN board top view JK241 JK241 IC158 IC158 IC501 IC501 ...

Page 53: ...e 8 1 2 How to troubleshoot Countermeasure 1 Check your BT device Make sure that BT Function is on state 2 If it is OK please check the CN201 3 If there is soldering problem please re soldering pin CN201 4 If after re soldering problem still occurs replace BT module 5 If problem still occurs after change BT module check MT8553 IC IC501 Refer to item 2 6 8 1 3 Service hint Any picture Remark MAIN b...

Page 54: ... normal Replace F900 same fuse YES YES NO Is TH900 normal Is BD900 normal Is the VCC 12 V supplied to IC901 pin4 Replace TH900 Replace BD900 Check or replace D921 Is D921 normal YES YES YES NO NO NO Power line of MAIN board is short 1 POWER SUPPLY ON SMPS BOARD ...

Page 55: ...3 3V_MTK Is the VCC supplied to IC157 pin1 Check 3 3 VA YES YES NO Is there signal at IC157 pin3 Check IC101 pin24 P_CTRL1 Check IC157 and replace YES NO No Analog_3 3V Is the VCC supplied to IC706 pin1 Check 5 VA YES YES NO Is there signal at IC706 pin3 Check IC101 pin24 P_CTRL1 Check IC706 and replace YES NO 2 POWER SUPPLY ON MAIN BOARD ...

Page 56: ...C154 and replace No 1V_HDMI Is the VCC supplied to IC803 pin1 Check 3 3V_HDMI YES YES NO Check IC803 and replace No 3 3V_HDMI Is the VCC supplied to IC802 pin1 Check 3 3 VA YES YES NO Is there signal at IC802 pin3 Check IC101 pin25 P_CTRL2 Check IC802 and replace YES NO ELECTRICAL TROUBLESHOOTING GUIDE ...

Page 57: ...eck 12 VA YES YES NO Check IC302 and replace No 5 VA Is the VCC supplied to IC151 pin3 Check 12 VA YES YES NO Check IC151 and replace No 5 V 5V_LOADER Is the VCC supplied to IC156 pin1 Check 5 VA YES YES NO Is there signal at IC156 pin3 Check IC101 pin24 P_CTRL1 Check IC156 and replace YES NO ...

Page 58: ... IC158 pin3 Check IC101 pin24 P_CTRL1 Check IC158 and replace YES NO No 1 2 V 1 2V_MTK Is the VCC supplied to IC153 pin3 Check 12 VA YES YES NO Is there signal at IC153 pin5 Check IC101 pin24 P_CTRL1 Check IC153 and replace YES NO No 1 5V_MTK Is the VCC supplied to IC155 pin3 Check 3 3 V YES YES NO Check IC155 and replace ...

Page 59: ...AL TROUBLESHOOTING GUIDE 3 SYSTEM PART Power On YES Main Board Front Board Check SMPS board Stand by LED OK PVDD OK NO NO YES Check IC152 Check CN1F1 pin3 3 3 VA OK 3 3 VA OK NO NO YES YES 3A Replace IC101 Micom 3B ...

Page 60: ...oper display cable connect LG Logo Display on Monitor OK LG Logo display on monitor OK 3A IC155 1 5 V IC153 1 2 V IC157 3 3 V OK Display cable connection OK NO NO NO NO YES YES YES YES YES Replace X501 Replace IC502 NAND FLASH Replace IC501 MT8553 X501 27 000 MHz OK IC502 NF_ALE NF_CLE OK NO NO YES ...

Page 61: ... OK Check 5 VA IC151 YES YES YES YES NO IC101 HDMI_SCL SDA EDID_SW CEC_RX TX HDMI_RST OK CN803 pin19 HP_DET about 3 3 V OK Is there signal on CN803 pin1 3 4 6 7 9 10 12 Check IC101 Check hot plug detect signal from TV Check IC501 MT8553 VCC or replace IC501 MT8553 HDMI output OK YES NO NO NO ...

Page 62: ...put YES YES YES X401 24 576 MHz OK IC703 A_PVDD 22 3 V OK IC401 3 3 V 1 2 V OK IC401 pin19 20 21 22 23 24 I2C data OK IC703 pin2 3 12 OK Replace X401 Check SMPS board Check IC157 IC153 Check IC501 B10 D7 C7 D8 C8 pin Check IC101 Replace IC703 YES YES YES NO NO NO NO NO ...

Page 63: ...2 50 WAVEFORMS OF MAJOR CHECK POINT 1 SYSTEM PART 1 MPEG CRYSTAL 27 MHz IC501 MT8553 X TAL 27 MHz 1 1 ...

Page 64: ...2 51 2 SYSTEM PART 2 DDR3 MEMORY IC501 MT8553 BA0 IC501 MT8553 WE IC501 MT8553 CAS IC501 MT8553 CK 5 2 3 4 2 3 4 5 ...

Page 65: ...2 52 3 AUDIO PART 1 DSP I2C IC401 SPI_SCL IC401 SPI_DATA 6 7 6 7 ...

Page 66: ...2 53 4 AUDIO PART 2 DSP I2S M_LRCK M_BCK M_DATA0 8 9 10 M_BCK M_DATA0 10 8 9 ...

Page 67: ...2 54 5 HDMI PART 12 11 H_SDA H_SCL 11 12 ...

Page 68: ...XY 2 layer MAIN_PCB FR4 EPOXY 4 layer SMPS_PCB FR1 PANEL 1 layer SLOT MD WIFI Module BT Module FRONT R FRONT R FRONT L FRONT L Twitter L Twitter R Harness 3pin Harness 14pin Harness 5pin Harness 8pin Harness 8pin FFC 12pin FFC 8pin FFC 6pin FFC 45pin Wireless Module CN271 BtoB 26pin LCD Module CN1F2 FPC 10pin Optional part WIRING DIAGRAM ...

Page 69: ...ART USB0_DP DN MPEG_SPDIF 27 MHz I2C HDMI_SPDIF TP_TX_P N TP_RX_P N Ethernet LED_CTRL SPI BL_CTRL RCU_IN D SPDIF Analog L R USB Optical In Portable In HDMI IC SiI9533 Silicon TMDS TMDS HDMI OUT TMDS HDMI IN HDMI IN I2C CEC I2S KEY ADC PCM1808 I2S DAC PCM5101 C Logic DSP CS48L10 130Mips Wireless Module I2S 6 3 V Wireless Active Woofer TPA3116 DRV632 Serial NOR SPI Serial NOR ARC_SPDIF BT_DATA BT_BC...

Page 70: ...AFETY 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 THE SCHEMATIC FOR EASY IDENTIFICATION THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIFFER FROM THE ACTUAL CIRCUIT USED THIS...

Page 71: ...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 MICOM EAX66207901_Rev2 2 30 MAIN 2 2015 01 14 2 MAIN MICOM CIRCUIT DIAGRAM ...

Page 72: ...2 64 2 63 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 EAX66207901_Rev2 2 30 MAIN 3 2015 01 14 3 MAIN POWER CIRCUIT DIAGRAM ...

Page 73: ...2 66 2 65 1 5 2 3 4 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 MPEG MEMORY EAX66207901_Rev2 2 30 MAIN 4 2015 01 14 4 MAIN MPEG MEMORY CIRCUIT DIAGRAM ...

Page 74: ...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 F E EAX66207901_Rev2 2 30 MAIN 5 2015 01 14 5 MAIN F E CIRCUIT DIAGRAM ...

Page 75: ...2 70 2 69 10 8 6 7 9 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 DAC AMP EAX66207901_Rev2 2 30 MAIN 6 2015 01 14 6 MAIN DAC AMP CIRCUIT DIAGRAM ...

Page 76: ...2 72 2 71 12 11 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 HDMI EAX66207901_Rev2 2 30 MAIN 7 2015 01 14 7 MAIN HDMI CIRCUIT DIAGRAM ...

Page 77: ...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 MULTI OPTION EAX66207901_Rev2 2 30 MAIN 8 2015 01 14 8 MAIN MULTI OPTION CIRCUIT DIAGRAM ...

Page 78: ...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 FRONT EAX66187301 Rev1 5 9 2015 01 14 9 FRONT CIRCUIT DIAGRAM ...

Page 79: ...2 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 FRONT KEY EAX66209801 Rev1 5 7 2015 01 14 10 FRONT KEY CIRCUIT DIAGRAM ...

Page 80: ...V R2PWR5V 4 5V 5 5V 5 08V Capacitors C157 Capacitor AL Chip RC1V337M10010VR 330uF 20 35V 35V 22 3V C166 Capacitor Ceramic Chip GRM31CR71E106KA12 10uF 10 25V 25V 1 202V C167 Capacitor Ceramic Chip GRM31CR71E106KA12 10uF 10 25V 25V 5 09V C168 Capacitor Ceramic Chip GRM31CR71E106KA12 10uF 10 25V 25V 3 37V C180 Capacitor Ceramic Chip GRM31CR7YA106KA12L 10uF 10 35V 35V 11 97V C734 Capacitor Ceramic Chi...

Page 81: ...2 82 2 81 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 ...

Page 82: ...2 84 2 83 2 MAIN P C BOARD TOP VIEW BOTTOM VIEW ...

Page 83: ...2 86 2 85 3 FRONT P C BOARD 4 FRONT KEY P C BOARD TOP VIEW TOP VIEW BOTTOM VIEW BOTTOM VIEW ...

Page 84: ...3 1 SECTION 3 CABINET MAIN CHASSIS CONTENTS DISASSEMBLY INSTRUCTIONS 3 2 EXPLODED VIEWS 3 9 1 CABINET AND MAIN FRAME SECTION 3 9 2 DECK MECHANISM SECTION 3 11 3 PACKING ACCESSORY SECTION 3 13 ...

Page 85: ...CTIONS Before you begin position the main set upside down 1 Remove the 9 screws securing the Bottom Chassis 2 Remove the Bottom Chassis 1 Remove the 2 screws securing the Chassis Main Assembly Fig 2 Fig 1 1 2 Bottom Chassis ...

Page 86: ...3 3 1 Disconnect the Harness FFC cables from the MAIN PCB 1 Remove the 12 screws securing the Rear Panel 2 Remove the Rear Panel Fig 4 Fig 3 1 2 Rear Panel SPK MD MD MD BT Wi Fi FRONT ...

Page 87: ...3 4 1 Remove the Chassis Main Assembly Fig 5 Chassis Main Assembly Chassis Main Assembly ...

Page 88: ...ct the Harness cable from the MAIN PCB 2 Remove the 5 screws securing the SMPS PCB 3 Remove the SMPS PCB 1 Remove the 5 screws securing the MAIN PCB 2 Remove the MAIN PCB Fig 7 Fig 6 1 1 1 2 MAIN SMPS 1 2 2 2 3 MAIN ...

Page 89: ...ws securing the MD Base bracket 2 Remove the MD Assembly 3 Disconnect the FFC cable from the Bluetooth Module 4 Remove the Bluetooth Module 5 Disconnect the Harness cable from the Wi Fi Module 6 Remove the Wi Fi Module 7 Remove the 2 screws securing the FRONT PCB 8 Remove the FRONT PCB Fig 9 Fig 8 1 1 B T Wi Fi MD Assembly FRONT 2 3 7 8 4 5 6 1 1 1 1 2 3 ...

Page 90: ...3 7 1 Remove the 2 screws securing the KEY PCB 2 Remove the KEY PCB Fig 10 KEY 1 ...

Page 91: ...3 8 ...

Page 92: ... MAIN SMPS B T Wi Fi FRONT K C B G E F D A42 464 464 A52 A51 264 464 263 464 464 464 464 265 261 464 A46 A47 420 420 260 A44 320 464 470 464 464 264 A43 CABLE4 CABLE3 CABLE2 CABLE1 KEY EXPLODED VIEWS 1 CABINET AND MAIN FRAME SECTION ...

Page 93: ... A001 1030 1031 1049 1438 1015 1008 1006 1013 1014 1012 1009 1016 1017 1007 1011 1020 1002 1004 1005 1001 1003 1435 A004 1436 A002 A003 A005 1437 1024 1024 1437 1437 1024 1437 1024 2 DECK MECHANISM SECTION ...

Page 94: ... USB extension cable Not supplied 801 Owner s manual 826 Filter Ferrite Core 808 Batteries 900 Remote control 300 Power cord OPTIONAL PART 803 Packing 804 Bag 802 Box 803 Packing 802A Accessory box 3 PACKING ACCESSORY SECTION ...

Page 95: ...3 16 3 15 ...

Page 96: ...REQUIRED SA RESET 4 3 3 SA RESET PROCEDURE 4 3 MAJOR IC INTERNAL BLOCK DIAGRAM AND PIN DESCRIPTION 4 5 1 IC501 MT8553 PIN DESCRIPTION 4 5 2 IC301 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 SECTION 4 MT8553 F E LOADER PART CONTENTS ...

Page 97: ...K PROCEDURE 1 Power on the set then mode is in home menu 2 Press Settings 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 ...

Page 98: ... 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 ...

Page 99: ...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 ...

Page 100: ...V Motor Hall sensor input The pin is spike free at power on stage N2 FEFMO Analog Output Feed motor 1 control DAC output N3 FEFMO2 Analog Output Feed motor 2 control DAC output L5 FEFMO3 Analog I O Feed motor 3 control DAC output Alternative Function Auxiliary servo input L4 FEFMO4 Analog I O Feed motor 4 control DAC output Alternative Function Auxiliary servo input H3 FOO Analog Output Focus serv...

Page 101: ...function 1 LCD serial interface command enable 2 LCD_DRV Sqare wave output for LCD control 3 Internal monitored signal output 4 Line in input left right clock 5 General IO J1 FEGIO5 Analog Output Read gain switch 6 Alternate function 1 SIDM 2 LCD serial interface command enable 3 Internal monitored signal output 4 Line in input data 5 General IO K7 FEGIO6 Analog Output Read gain switch 6 The pin i...

Page 102: ...ntial Input of AC Coupling RF SUM Signal Negative G2 RFIP Analog Input Differential Input of AC Coupling RF SUM Signal Positive G3 TLO Analog Output Tilt servo output M1 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 free at power on stage Alternate function General IO L3 FE...

Page 103: ...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 ...

Page 104: ...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...

Page 105: ...b 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 GND_LD LD Ground 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...

Page 106: ...4 11 BLOCK DIAGRAM OPU Ethernet 5 1 CH 2 CH S PDIF HDMI CVBS Motor Driver USB NAND 2 Gb DDR3 512 MB Audio DAC MT8553 HD SD Decode 800 MHz Cortex A7 400 MHz Audio DSP x 3 HDMI 1 4 Ethernet Monitor ...

Page 107: ...4 12 ...

Reviews:

No comments