LG LHB535 User manual

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@Internal Use Only
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ISERVICEMANUAL
EL: LH
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS"
IN THIS MANUAL.
P/NO "AFN73671926 JANUARY, 2010

CONTENTS
SECTION 1 ........ SUMMARY
SECTION 2 ........ ELECTRICAL
SECTION 3 ........ CABINET & MAiN CHASSIS
SECTION 4 ........ BCM7630 F/E LOADER PART
SECTION 5 ........ REPLACEMENT PARTS LiST
Copyright © 2010 LG Electronics inc. All right reserved. 1=1 LGE Internal Use Only
Only for training and service purposes.

SECTION 1
SUMMARY
CONTENTS
PRODUCT SAFETY SERViCiNG GUIDELINES FOR BLU=RAY DISC PLAYER PRODUCTS .............. 1-3
SERViCiNG PRECAUTIONS .......................................................................................................................... 1-4
• GENERAL SERVICING PRECAUTIONS
•INSULATION CHECKING PRODEDURE
• ELECTROSTATICALLY SENSITIVE (ES) DEVICES
SERVICE INFORMATION FOR EEPROM .................................................................................................... 1-5
1. DVD PART
2. MICOM PART
SOFTWARE UPGRADE .................................................................................................................................. 1-7
NETWORK UPDATE ....................................................................................................................................... 1-8
SPECiFiCATiONS .......................................................................................................................................... 1-11
LGE Internal Use Only 1=2 Copyright © 2010 LG Electronics inc. All right reserved.
Only for training and service purposes.

PRODUCT SAFETY SERViCiNG GUiDELiNES
FOR BLU-RAY DiSC PLAYER PRODUCTS
iMPORTANT SAFETY NOTICE
This manualwas preparedfor use only by properlytrained audio-videoservice
technicians•
When servicingthisproduct,undernocircumstancesshouldtheoriginaldesignbe
modifiedoralteredwithoutpermissionfrom LGCorporation.Allcomponentsshould
bereplacedonlywithtypesidenticaltothosein the originalcircuitandtheir physical
location,wiringand lead dressmustconformto originallayoutupon completionof
repairs•
Specialcomponentsarealsousedtopreventx-radiation,shockandfirehazard•
These componentsare indicatedbythe letter"x" includedin their componentdes-
ignatorsandarerequiredtomaintainsafeperformance.Nodeviationsareallowed
withoutpriorapprovalby LGCorporation.
Circuitdiagramsmay occasionallydifferfrom the actual circuit used. This way,
implementationofthelatestsafetyandperformanceimprovementchangesintothe
setis notdelayeduntilthenewserviceliteratureis printed.
CAUTION : Donot attemptto modifythis productin anyway. Neverperformcus-
tomized installationswithout manufacturer'sapproval.Unauthorizedmodifications
willnotonlyvoidthewarranty,butmay leadtopropertydamageor userinjury.
Serviceworkshould beperformedonlyafteryou arethoroughlyfamiliarwiththese
safetychecksandservicingguidelines.
GRAPHIC SYMBOLS
The exclamationpoint within an equilateraltriangleis intendedto
alert the service personnelto important safety informationin the
serviceliterature.
The lightningflash with arrowhead symbol within an equilateral
,_ triangleisintendedto alerttheservicepersonneltothe presenceof
noninsulated"dangerousvoltage"thatmaybeofsufficientmagnitude
toconstitutea riskof electricshock.
The pictorialrepresentationof a fuse and its ratingwithin an equi-
lateraltriangle is intendedto convey to the service personnelthe
followingfuse replacementcautionnotice:
CAUTION : FOR CONTINUEDPROTECTION AGAINST RISK
OF FIRE, REPLACEALL FUSES WITH THE SAME TYPE AND
RATINGAS MARKEDNEAREACH FUSE.
SERVICE INFORMATION
While servicing,useanisolationtransformerforprotectionfromAC lineshock.After
theoriginalserviceproblemhas beencorrected,makea checkofthefollowing:
FIRE AND SHOCK HAZARD
1. Be sure that all componentsare positionedto avoid a possibilityof adjacent
componentshorts.This isespeciallyimportantonitemstrans-portedtoandfrom
therepairshop.
2. Verifythat all protectivedevicessuch as insulators,barriers,covers,shields,
strainreliefs,powersupplycords,andotherhardwarehavebeenreinstalledper
theoriginaldesign.Be surethatthe safetypurposeofthepolarizedlineplughas
notbeen defeated.
3. Soldering must be inspectedto discover possiblecold solder joints, solder
splashes,or sharp solder points. Be certainto remove all loose foreign par-
ticles.
4. Checkfor physicalevidenceof damageor deteriorationto partsand compo-
nents, for frayed leads or damaged insulation(includingthe AC cord), and
replaceif necessary.
5. No leador componentshouldtoucha highcurrentdeviceora resistorratedat 1
wattor more.Lead tensionaroundprotrudingmetalsurfacesmustbeavoided.
6. Afterreassemblyoftheset, alwaysperformanAC leakagetest on allexposed
metallic parts of the cabinet (the channel selector knobs, antenna terminals,
handle and screws)to be surethat set is safe to operatewithoutdanger of
electricalshock.DO NOTUSEA LINEISOLATIONTRANSFORMERDURING
THISTEST.UseanAC voltmeterhaving5000ohmspervoltormore sensitivity
in thefollowingmanner:Connecta 1500ohm, 10 wattresistor,paralleledby a
•15mfd150VACtypecapacitorbetweena knowngoodearthgroundwaterpipe,
conduit,etc.)andthe exposedmetallicparts,oneatatime.MeasuretheACvolt-
ageacrossthe combinationof 1500ohm resistorand.15 mfd capacitor.Reverse
theAC plugby using a non-polarizedadaptorand repeatACvoltage measure-
mentsfor eachexposedmetallicpart.Voltagemeasuredmustnotexceed0.75
volts RMS.Thiscorrespondsto0.5 milliampAC.Any valueexceedingthislimit
constitutesa potentialshockhazardandmustbecorrectedimmediately.
A.C. Voltmeter
Good Earth Ground _.w I]
such as the Water
Pipe, Conduit, etc. 1500 OHM
10 WATT
Place this probe
on each exposed
metal part,
TIPSON PROPERINSTALLATION
1. Neverinstallanyreceiverin aclosed-inrecess,cubbyhole,orcloselyfittingshelf
spaceover,orcloseto, aheat duct,or inthepathofheatedairflow.
2. Avoidconditionsofhighhumiditysuchas: outdoorpatioinstallationswheredew
is afactor,nearsteamradiatorswheresteamleakageisafactor,etc.
3. Avoid placementwhere draperiesmay obstructventing.The customershould
alsoavoidthe use ofdecorativescarvesor othercoveringsthatmightobstruct
ventilation.
4. Wall- and shelf-mountedinstallationsusing a commercialmounting kit must
followthe factory-approvedmountinginstructions.A productmountedto a shelf
or platformmust retainitsoriginalfeet (ortheequivalentthicknessin spacers)to
provideadequateairflow acrossthebottom.Boltsor screws usedforfasteners
must nottouch anyparts or wiring.Performleakagetestsoncustomizedinstal-
lations.
5. Cautioncustomersagainstmountinga producton a slopingshelfor in a tilted
position,unlessthe receiverisproperlysecured.
6. A producton aroll-aboutcartshouldbestablein itsmountingtothe cart.
Cautionthe customeron the hazardsof tryingto roll a cart with smallcasters
acrossthresholdsor deep pilecarpets.
7. Cautioncustomersagainstusingextensioncords.Explainthata forestofexten-
sions, sproutingfrom a singleoutlet, can lead to disastrousconsequencesto
home andfamily.
Copyright © 2010 LG Electronics Inc. All right reserved. 1=3 LGE Internal Use Only
Only for training and service purposes.

SERViCiNG PRECAUTIONS
CAUTION: Before servicing the BLU-RAY DISC PLAYER cov-
ered by this service data and its supplements and addends,
read and follow the SAFETY PRECAUTIONS. NOTE: if
unforeseen circumstances create conflict between the follow-
ing servicing precautions and any of the safety precautions in
this publications, always follow the safety precautions.
Remember Safety First :
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 used to help reduce the
incidence of component damage caused by static electricity.
General Servicing Precautions
1.Always unplug the BLU-RAY DISC PLAYER AC power cord 1.
from the AC power source before:
(1) Removing or reinstalling any component, circuit board,
module, or any other assembly.
(2) Disconnecting or reconnecting any internal electrical
plug or other electrical connection.
(3) Connecting a test substitute in parallel with an electro-
lytic capacitor.
Caution : A wrong part substitution or incorrect polar- 2.
ity installation of electrolytic capacitors may result in an
explosion hazard.
2. Do not spray chemicals on or near this BLU-RAY DISC
PLAYER or any of its assemblies.
3. Unless specified otherwise in this service data, clean elec-
trical contacts by applying an appropriate contact cleaning
solution to the contacts with a pipe cleaner, cotton-tipped
swab, or comparable soft applicator.
Unless specified otherwise in this service data, lubrication of
contacts is not required.
4. Do not defeat any plug/socket B+ voltage interlocks with
whitch instruments covered by this service manual might be
equipped.
5. Do not apply AC power to this BLU-RAY DISC PLAYER
and /or any of its electrical assemblies unless all sotidstate
device heat sinks are correctly installed.
6.Always connect the test instrument ground lead to an
appropriate ground before connecting the test instrument
positive lead. Always remove the test instrument ground
lead last.
Insulation Checking Procedure
Disconnect the attachment plug from the AC outlet and turn
the power on. Connect an insulation resistance meter (500V)
to the blades of the attachment plug. The insulation resistance
between each blade of the attachment plug and accessible
conductive parts (Note 1) should be more than 1Mohm.
Note 1 : Accessible Conductive Parts include Metal panels,
Input terminals, Earphone jacks,etc.
Immediately before handling any semiconductor compo-
nent or semiconductor-equipped assembly, drain off any
electrostatic charge on your body by touching a known
earth ground. Alternatively, obtain and wear a commercially
available discharging wrist strap device, which should be
removed for potential shock reasons prior to applying power
to the unit under test.
After removing an electrical assembly equipped with ES
devices, place the assembly on a conductive surface such
as aluminum foil, to prevent electrostatic charge buildup or
exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder
ES devices.
4. Use only an anti-static solder removal device. Some solder
removal devices not classified as "anti-static" can generate
electrical charges sufficient to damage ES devices.
5. Do not use freon-propetled chemicals. These can generate
an electrical charge sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective
package until immediately before you are ready to install
it. (Most replacement ES devices are packaged with leads
electrically shorted together by conductive foam, aluminum
foil,or comparable conductive material).
7. Immediately before removing the protective material from
the leads of a replacement ES device, touch the protective
material to the chassis or circuit assembly into which the
device will be installed.
Caution: Be sure no power is applied to the chassis or cir-
cuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged
replacement ES devices. (Normally harmless motion such
as the brushing together of your clothes fabric or the lifting
of your foot from a carpeted floor can generate static elec-
tricity sufficient to damage an ES device.)
LGE Internal Use Only 1=4 Copyright © 2010 LG Electronics Inc. All right reserved.
Only for training and service purposes.

SERVICE iNFORMATiON FOR EEPROM
I. DVD PART
FLD "NO DISK" or "OPEN" status.
If
Remote control
Pause key-->1-->4-->7-->2 in order.
Press number 0-9, Press character
A-F (1-6 for a while)
Use arrow key (4 A _T) to
move to appropriate position and
make changes
Press pause key once
If
- Change will be applied -/_
when power
OFF-->ON.
DETECT NEW EEPROM (OPTION EDIT SCREEN)
Option Edit
Byte No. ByteO Byte1 Byte2 Byte3 Byte4 Byte5 Byte6 Byte7
[00] 55 53 O0 O0 OB 73 EB 4E
[08] AO E5 83 32 O0 O0 O0 O0
[16] 01 O0 O0 O0 01 O0 O0 O0
[24] O0 O0 O0 O0 O0 O0 O0 O0
Press UP/DOWN to change the value.
Press LEFT/RIGHT and A(Up)/D(Down) to move the cursor.
Press PAUSE to store and exit,
Copyright © 2010 LG Electronics Inc. All right reserved. 1-5 LGE Internal Use Only
Only for training and service purposes.

2. lVliCOiViPART
FLD no disc status
1,
Remote control '2' + Front 'STOP'
push same timing during 5 s
!,
FLD 'OP-0 ....
1,
Use arrow key (4 A _ T) to
move to appropriate position and
make changes
!,
Press ENTER key once
1,
FLD 'write ok' or 'up ok'
Remote control '2' + Front 'STOP'
push same timing
FLD display E2P CLR or EP CLR
Auto off
power
DETECT NEW EEPROM
OPTION EDIT SCREEN)
NAME HEX
OP0 69
OP1 B8
OP2 30
OP3 C7
OP4 00
LGE Internal Use Only 1=6 Copyright © 2010 LG Electronics inc. All right reserved.
Only for training and service purposes.

SOFTWARE UPGRADE
• Burn a DVD recordable disc or USB with a file that is named to "LG_BD_5000B30.ROM".
Insert a upgrading disc or USB.
Show help message for disc upgrade as follows.
< in the case of Back End program & Front End program >
Press play key to upgrade and it will show progress information
After completing upgrade then power is off.
Copyright © 2010 LG Electronics Inc. All right reserved. 1=7 LGE Internal Use Only
Only for training and service purposes.

NETWORK UPDATE
You can update the firmware by connecting your unit device directly to the S/W update server.
Configuring Network Settings
To update the firmware by connecting your player directly to the S/W update server, your player must be
connected to network. If your player is not connected to network, make a physical connection.
1) Press Home on the Remote Control.
2) Press 4 or I_ to select the Setup mode.
3) Select Others --> Software Update
4) On the UPDATE window, press I_ or ENTER to
check for the newest update.
(Checking will takes about one minute.)
Caution:
Pressing Enter while checking for the update will end
process
LGE Internal Use Only 1=8 Copyright © 2010 LG Electronics inc. All right reserved.
Only for training and service purposes.

if newer version exists,
5) If newer version exists, the message
"A new update was found. Do you want to
download it?" appears.
Select OK to download the update.
(Selecting CANCEL will end the update.)
6) The player starts downloading the newest update
from the SBP server.
7) When downloading is completed, the message,
"Download is complete. Do you want to
update?" appears.
8) Select OK to start updating
Copyright © 2010 LG Electronics Inc. All right reserved. 1=9 LGE Internal Use Only
Only for training and service purposes.