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service modes, error codes and fault finding

1. Saved settings on USB stick Yes y In case of settings reloaded from USB the set type Go to SAM and reload settings ___ serial number display 12 NC are automatically stored Yy via Download from USB function when entering display options Program set type number serial number and di splay 12 NC Program E DFU if needed A y If not already done Check latest software on Service website Check if correct display option code is programmed Update main and Stand by software via USB Verify option codes according to table 5 1 2 Default settings for white drive gt see Service Manual Attention point for Net TV If the set type and serial number are not filled in the Net TV functionality will not work It will not be possible y to connect to the internet Check and perform alignments in SAM according to the Service Manual Option codes colour temperature etc AA Final check of all menus in CSM Special attention for HDMI Keys and Mac address Check if E D F U is present SSB Board Updated 02 06 2011 LC 32LE631 LC 40LE631 LC 46LE631 Service Modes Error Codes and Fault Finding continued Set is starting up in Factory mode y Yy Noisy picture with bands lines is visible and the An F is displayed and the HDMI 1 RED LED is continuous on input is displayed y Pr
2. CURSOR UP DOWN key on the RC transmitter The selected item will be highlighted When not all menu items LC 32LE631 LC 40LE631 LC 46LE631 Service Modes Error Codes and Fault Finding continued 5 2 3 fit on the screen move the CURSOR UP DOWN key to display the next previous menu items e With the CURSOR LEFT RIGHT keys it is possible to De activate the selected menu item De activate the selected sub menu e With the OK key it is possible to activate the selected action How to Exit SAM Use one of the following methods e Switch the TV set to STAND BY via the RC transmitter e Via a standard RC transmitter key in 00 sequence or select the BACK key Customer Service Mode CSM Purpose When a customer is having problems with his TV set he can call his dealer or the Customer Helpdesk The service technician can then ask the customer to activate the CSM in order to identify the status of the set Now the service technician can judge the severity of the complaint In many cases he can advise the customer how to solve the problem or he can decide if it is necessary to visit the customer The CSM is a read only mode therefore modifications in this mode are not possible When in this chassis CSM is activated a test pattern will be displayed during 5 seconds 1 second Blue 1 second Green and 1 second Red then again 1 second Blue and 1 second Green This test
3. NVM Note that if an NVM is replaced or is initialized after corruption this identification number has to be re written to NVM This identification number is the 12nc number of the SSB 12NC display Shows the 12NC of the display 12NC supply Shows the 12NC of the power supply 12NC 200Hz board Shows the 12NC of the 200Hz Panel when present 12NC AV PIP Shows the 12NC of the AV PIP board when present Software versions Current main SW Displays the build in main software version In case of field problems related to software software can be upgraded As this software is consumer upgradeable it will also be published on the Internet Example S 5551_0 9 21 0 Stand by SW Displays the build in stand by processor software version Upgrading this software will be possible via USB see section 5 9 Software Upgrading Example STBY_89 167 00 e UM version Displays the electronic user manual SW version 12NC version number Most significant number here is the last digit AV PIP software 3D dongle software version Quality items Signal quality Bad average good not for DVB S Ethernet MAC address Displays the MAC address present in the SSB Wireless MAC address Displays the wireless MAC address to support the Wi Fi functionality BDS key Indicates if the set is in the BDS status CI module Displays status if the common interface module is detected Cl protected service Yes No Event counter
4. Net TV portals After a SSB repair the original channel map can be restored provided that the original channel map was stored on a USB stick before repair was commenced and that basic functionality of the TV needed for this procedure was not hampered as a result of the defect The procedure of channel map cloning is clearly described in the electronic user manual In case of a display replacement reset the Operation hours display to 0 or to the operation hours of the replacement display Panel LC 46LE631E 00008 00001 15421 04287 43850 34311 33024 00011 RILK315D3LA63Y LC 40LE631E 00008 00001 15421 04287 43849 34311 33024 00011 R1LK400D3LB43Y LC 32LE631E 00008 00001 15421 02239 43847 34311 33024 00011 RILK460D3LB33Y VE2 Panel LCS2LEGSiE 00008 00001 15421 02239 43894 34311 33024 00011 R1LK315D3LA63F LC40LE631E 00008 00001 15421 04287 43886 34311 33024 00011 RILK400D3LB43F LC46LE631E 00008 00001 15421 04287 43895 34311 33024 00011 R1LK460D3LB33F In all cases the Software Version is V0 10 82 0 or upper LC 32LE631 LC 40LE631 LC 46LE631 Alignments continued 6 5 1 SSB identification Whenever ordering a new SSB it should be noted that the correct ordering number 12nc of a SSB is located on a sticker on the SSB The format is lt 12nc SSB gt lt serial number gt The ordering number of a Service SSB is the same as
5. 6 4 Option Settings Press OK on the remote control before the cursor is moved to the left In submenu Option numbers select Store and press OK on the RC OR In main menu select Store again and press OK on the RC Switch the set to Stand by Warming up gt 15 minutes Hardware Alignments Not applicable Software Alignments Put the set in SAM mode see Chapter 5 Service Modes Error Codes and Fault Finding The SAM menu will now appear on the screen Select ALIGNMENTS and go to one of the sub menus The alignments are explained below The following items can be aligned White point To store the data Press OK on the RC before the cursor is moved to the left In main menu select Store and press OK on the RC Switch the set to stand by mode For the next alignments supply the following test signals via a video generator to the RF input e EU AP PAL models a PAL B G TV signal with a signal strength of at least 1 mV and a frequency of 475 25 MHz e US AP NTSC models an NTSC M N TV signal with a signal strength of at least 1 mV and a frequency of 61 25 MHz channel 3 e LATAM models an NTSC M TV signal with a signal strength of at least 1 mV and a frequency of 61 25 MHz channel 3 White Point e Choose TV menu Setup More TV Settings and then Picture and set picture settings as follows Picture Setting Contr
6. SAM 5 5 2 How to Read the Error Buffer Use one of the following methods e On screen via the SAM only when a picture is visible E g 0000 00 00 00 No errors detected 2300 00 00 00 Error code 23 is the last and only detected error 372300 00 00 Error code 23 was first detected and error code 37 is the last detected error Note that no protection errors can be logged in the error buffer LC 32LE631 LC 40LE631 LC 46LE631 Service Modes Error Codes and Fault Finding continued 5 5 3 5 5 4 e Via the blinking LED procedure See section 5 5 3 How to Clear the Error Buffer How to Clear the Error Buffer Use one of the following methods e By activation of the RESET ERROR BUFFER command in the SAM menu e Ifthe content of the error buffer has not changed for 50 hours it resets automatically Error Buffer In case of non intermittent faults clear the error buffer before starting to repair before clearing the buffer write down the Table 5 2 Error code overview content as this history can give significant information This to ensure that old error codes are no longer present If possible check the entire contents of the error buffer In some situations an error code is only the result of another error code and not the actual cause e g a fault in the protection detection circuitry can also lead to a protection There are several mechanisms of error detection e Vi
7. according needed use case Request Tcon to Switch on the backlight in a direct LED or set Lamp on O line in case of a side LED Start POK line detection algorithm Wait until valid and stable audio and video corresponding to the requested output is delivered by the AVC Switch Audio Reset low and wait 5ms Release audio mute and wait 100ms before any other audio The higher level requirement is that audio and handling is done e g volume change video should be demuted without transient effects and that the audio should be demuted maximum 1s before or at the same time as the unblanking of the video unblank the video Switch on the Ambilight functionality according the last status settings Startup screen Option lt and Installation setting Photoscreen ON Yes Display cfg file present and up to date according correct display option No Prepare Start screen Display config file and copy to Flash Active 18770_254_100216 eps 100216 Figure 5 7 Semi Stand by to Active flowchart LED backlight 200 Hz LC 32LE631 LC 40LE631 LC 46LE631 Service Modes Error Codes and Fault Finding continued Mute all sound outputs via softmute Wait 100ms Set main amplifier mute I O audio mute Force ext audio outputs to ground I O audio reset And wait 5ms switch off Ambilight Wait until Ambilight has faded out Output power Observer should be zero Switch off POK line detection algo
8. are one digit errors LAYER 2 errors are 2 digit errors e In protection mode From consumer mode LAYER 1 From SDM mode LAYER 2 e Fatal errors if 12C bus is blocked and the set reboots CSM and SAM are not selectable From consumer mode LAYER 1 From SDM mode LAYER 2 e In CSM mode When entering CSM error LAYER 1 will be displayed by blinking LED Only the latest error is shown e In SDM mode When SDM is entered via Remote Control code or the hardware pins LAYER 2 is displayed via blinking LED e Error display on screen In CSM no error codes are displayed on screen In SAM the complete error list is shown Basically there are three kinds of errors e Errors detected by the Stand by software which lead to protection These errors will always lead to protection and an automatic start of the blinking LED LAYER 1 error see section 5 6 The Blinking LED Procedure e Errors detected by the Stand by software which not lead to protection In this case the front LED should blink the involved error See also section 5 5 Error Codes 5 5 4 Error Buffer Note that it can take up several minutes before the TV starts blinking the error e g LAYER 1 error 2 LAYER 2 error 15 or 53 Errors detected by main software MIPS In this case the error will be logged into the error buffer and can be read out via blinking LED method LAYER 1 2 error or in case picture is visible via
9. communication towards this device LAYER 2 error 31 will be logged and displayed via the blinking LED procedure if SDM is activated Error 34 Tuner When there is no I C communication towards the tuner during start up LAYER 2 error 34 will be logged and displayed via the blinking LED procedure when SDM is switched on Error 35 main NVM When there is no 1 C communication towards the main NVM during start up LAYER 2 error 35 will be displayed via the blinking LED procedure when SDM is switched on All service modes CSM SAM and SDM are accessible during this failure observed in the Uart logging as follows lt lt ERRO gt gt gt PFPOW_ C First Error id19 Layer_1 2 Layer_ 35 Error 36 Tuner DVB S When there is no 1 C communication towards the DVB S tuner during start up LAYER 2 error 36 will be logged and displayed via the blinking LED procedure when SDM is switched on Error 42 Temp sensor Only applicable for TV sets equipped with temperature devices Error 53 This error will indicate that the PNX8550 has read his bootscript when this would have failed error 15 would blink but initialization was never completed because of hardware problems NAND flash or software initialization problems Possible cause could be that there is no valid software loaded try to upgrade to the latest main software version Note that it can take a few minutes before the TV starts blinking LAYER 1 error 2 or
10. enter Hibernate mode The first time after the option turn on of the startup screen or when the set is virgin the cfg file is not the startup screen will not be shown 85500 sends out startup screen 200Hz Tcon has started up the display 85500 requests Lamp on Startup screen visible Initialize video processing IC s initialize AutoTV by triggering CHS AutoTV Init interface Initialize Ambilight with Lights off Semi Standby Figure 5 5 Off to Semi Stand by flowchart part 2 present and hence 18770_252_100216 eps 100216 LC 32LE631 LC 40LE631 LC 46LE631 Service Modes Error Codes and Fault Finding continued Constraints taken into account Display may only be started when valid LVDS output clock can be delivered by the AVC To have a reliable operation of the EEFL backlight the backlight should be driven with a maximum PWM duty cycle during the first seconds Only after this first one or two seconds the PWM may be set to the required output level Note that the PWM output should be present before the backlight is switched on To minimize the artefacts the picture should only be unblanked after these first seconds The assumption here is that a fast toggle lt 2s can Semi Stand by only happen during ON gt SEMI gt ON In these states the AVC is still active and can provide the 2s delay A transition ON gt SEMI gt STBY gt SEMI gt ON cannot be made in less
11. in SDM LAYER 2 error 53 Error 64 Only applicable for TV sets with an I C controlled screen 5 6 2 5 7 5 7 1 The Blinking LED Procedure Introduction The blinking LED procedure can be split up into two situations Blinking LED procedure LAYER 1 error In this case the error is automatically blinked when the TV is put in CSM This will be only one digit error namely the one that is referring to the defective board see table 5 2 Error code overview which causes the failure of the TV This approach will especially be used for home repair and call centres The aim here is to have service diagnosis from a distance Blinking LED procedure LAYER 2 error Via this procedure the contents of the error buffer can be made visible via the front LED In this case the error contains 2 digits see table 5 2 Error code overview and will be displayed when SDM hardware pins is activated This is especially useful for fault finding and gives more details regarding the failure of the defective board Important remark For an empty error buffer the LED should not blink at all in CSM or SDM No spacer will be displayed 5 7 2 When one of the blinking LED procedures is activated the front LED will show blink the contents of the error buffer Error codes greater then 10 are shown as follows 1 2 3 4 5 6 n long blinks where n 1 to 9 indicating decimal digit A pause of 1 5 s n
12. list The All item supports to upload all several items at once First a directory repair has to be created in the root of the USB stick To upload the settings select each item separately press cursor right or the OK button confirm with OK and wait until the message Done appears In case the download to the USB stick was not successful Failure will be displayed In this case check if the USB stick is connected properly and if the directory repair is present in the root of the USB stick Now the settings are stored onto the USB stick and can be used to download into another TV or other SSB Uploading is of course only possible if the software is running and preferably a picture is available This method is created to be able to save the customer s TV settings and to store them into another SSB Download from USB To download several settings from the USB stick to the TV same way of working needs to be followed as described in Upload to USB To make sure that the download of the channel list from USB to the TV is executed properly it is necessary to restart the TV and tune to a valid preset if necessary The All item supports to download all several items at once NVM editor For NET TV the set type number must be entered correctly Also the production code serial number can be entered here via the RC transmitter Correct data can be found on the side rear sticker
13. moved to an interrupt To be checked if the detection on interrupt base is feasible or not or if we should stick to the standard 40ms interval Enter protection Enable the DCDC converters ENABLE 3V3n LOW Enable the supply detection algorithm Set I C slave address of Standby uP to A0h Detect EJTAG debug probe pulling pin of the probe interface to An EJTAG probe e g WindPower ICE probe can be ground by inserting EJTAG probe connected for Linux Kernel debugging purposes JTAG probe connected No Cold boot Yes Release AVC system reset Release AVC system reset Feed warm boot script f Release AVC system reset Feed cold boot script Feed initializing boot script disable alive mechanism 18770_251_100216 eps 100216 Figure 5 4 Off to Semi Stand by flowchart part 1 LC 32LE631 LC 40LE631 LC 46LE631 Service Modes Error Codes and Fault Finding continued This cannot be done through the bootscrip the I O is on the standby pP Timing need to be updated if more mature info is available Code Layer1 2 Layer2 15 Code Layer1 2 Layer2 53 To keep this flowchart readable the exact display turn on description is not copied here Please see the Semi standby to On description for the detailed display startup During the complete display time of the Startup screen the preheat condition of sequence 100 PWM is valid Reset system is switched HIGH by the AVC
14. pattern is generated by the PNX51X0 located on the 200Hz board as part of the display So if this test pattern is shown it could be determined that the back end video chain PNX51X0 and display is working For TV sets without the PNX51X0 inside every menu from CSM will be used as check for the back end chain video When CSN is activated and there is a USB stick connected to the TV set the software will dump the CSM content to the USB stick The file CSM_model number_serial number txt will be saved in the root of the USB stick This info can be handy if no information is displayed When in CSM mode and a USB stick connected pressing OK will create an extended CSM dump file on the USB stick This file Extended_CSM_model number_serial number txt contains e The normal CSM dump information e All items from SAM load to USB but in readable format e Operating hours e Error codes e SW HW event logs To have fast feedback from the field a flashdump can be requested by development When in CSM push the red button and key in serial digits 2679 same keys to form the word COPY with a cellphone A file Dump_model number_serial number bin will be written on the connected USB device This can take 1 2 minute depending on the quantity of data that needs to be dumped Also when CSM is activated the LAYER 1 error is displayed via blinking LED Only the latest error is displayed see also sect
15. store mode None PDC VPS TXT page PDC VPS TXT Option numbers Group 1 e g 00008 00001 15421 02239 The first line group 1 indicates hardware options 1 to4 Group 2 e g 44816 3431 1 33024 00000 The second line group 2 indicates software options 5to8 Store Store after changing Initialise NVM N A Store Select Store in the SAM root menu after making any changes Operation hours display 0003 In case the display must be swapped for repair you can reset the Display operation hours to 0 So this one does keeps up the lifetime of the display itself mainly to compensate the degeneration behaviour Software maintenance Software events Display Display information is for development purposes Clear Test reboot Test cold reboot Test application crash Hardware events Display Clear Display information is for development purposes LC 32LE631 LC 40LE631 LC 46LE631 Alignments continued Main Menu Sub menu 1 Sub menu 2 Sub menu 3 Description Test setting Digital info Current frequency 538 QAM modulation 64 qam Display information is for development purposes Symbol rate Original network ID 12871 Network ID 12871 Transport stream ID 2 Service ID 3 Hierarchical modulation 0 Selected video PID 35 Selected main audio PID 99 Selected 2nd audio PID 8191 Install start frequency 000
16. testpattern should appear now generated by the AV PIP board this can take a few seconds CSM When CSM is activated and there is a USB stick connected to the TV the software will dump the complete CSM content to the USB stick The file Csm txt will be saved in the root of the USB stick If this mechanism works it can be concluded that a large part of the operating system is already working MIPS USB DC DC Converter Description basic board The basic board power supply consists of 4 DC DC converters and 5 linear stabilizers All DC DC converters have 12V input voltage and deliver e 1V1 supply voltage 1 15V nominal for the core voltage of PNX855xx stabilized close to the point of load SENSE 1V1 signal provides the DC DC converter the needed feedback to achieve this e 1V8 supply voltage for the DDR2 memories and DDR2 interface of PNX855xx e 3V3 supply voltage 3 30V nominal overall 3 3 V for onboard IC s for non 631 series SSB diversities only e 45V 5 15V nominal for USB WIFI and Conditional Access Module and 5V5 TUN for 5V TUN tuner stabilizer The linear stabilizers are providing e 1V2 supply voltage 1 2V nominal stabilized close to PNX855xx device for various other internal blocks of PNX855xx SENSE 1V2 signal provides the needed feedback to achieve this e 2V5 supply voltage 2 5V nominal for LVDS interface and various other internal blocks of PNX855xx for 631 series SSB diversities t
17. the programming is finished a message is shown to remove the USB stick and restart the set Manual Software Upgrade In case that the software upgrade application does not start automatically it can also be started manually How to start the software upgrade application manually 1 Disconnect the TV from the Mains AC Power 2 Press the OK button on a SHARP TV remote control LC 32LE631 LC 40LE631 LC 46LE631 Service Modes Error Codes and Fault Finding continued 3 The software upgrade application will start Attention In case the download application has been started manually the autorun upg will maybe not be recognized What to do in this case 1 Create a directory UPGRADES on the USB stick 2 Rename the autorun upg to something else e g to software upg Do not use long or complicated names keep it simple Make sure that AUTORUN UPG is no longer present in the root of the USB stick Copy the renamed upg file into this directory Insert USB stick into the TV 5 The renamed upg file will be visible and selectable in the upgrade application Ro Back up Software Upgrade Application If the default software upgrade application does not start could be due to a corrupted boot sector via the above described method try activating the back up software upgrade application How to start the back up software upgrade application manually
18. via a 5V to 1V DC DC converter and is stabilized at the point of load channel decoder by means of feedback signal SENSE 1V0 DVBS 3V3 DVBS and 2V5 DVBS are generated via linear stabilizers from 5V DVBS that by itself is generated via the first conversion channel of 7T03 At start up 24V becomes available when STANDBY signal is low together with 12V for the basic board when 3V3 from the basic board is present the two DC DC converters channels inside 7T03 are activated Initially only the 24V to 5V converter channel 1 of 7T03 generating 5V DVBS will effectively work while V LNB is held at a level around 11V7 via diode 6T55 After 7T05 is initialized the second channel of 7T03 will start and generates a voltage higher then LNB RF1 with OV8 5V DVBS start up will imply 3V3 DVBS start up with a small delay of a few milliseconds gt 2V5 DVBS and 1V DVBS will be enabled If 24V drops below 15V level then the DVB S2 supply will stop even if 3V3 is still present Debugging The best way to find a failure in the DC DC converters is to check their start up sequence at power on via the mains cord presuming that the stand by microprocessor and the external supply are operational Take STANDBY signal high to low transition as time reference When 12V becomes available maximum 1 second after STANDBY signal goes low then 1V1 is started immediately After ENABLE 3V3 goes low all the other supply voltages sh
19. with one another and Y W Z is the sub version number a higher number is always compatible with a lower number B STBY PROC Version Displays the software version of the stand by processor C Production Code Displays the production code of the TV this is the serial number as printed on the back of the TV set Note that if an NVM is replaced or is initialized after corruption this production code has to be re written to NVM e Operation Hours Displays the accumulated total of operation hours not the stand by hours Every time the TV is switched on off 0 5 hours is added to this number e Errors followed by maximum 10 errors The most recent error is displayed at the upper left for an error explanation see section 5 5 Error Codes e Reset Error Buffer When cursor right or OK button pressed here followed by the OK button the error buffer is reset e Alignments This will activate the ALIGNMENTS sub menu See Chapter 6 Alignments e Dealer Options Extra features for the dealers e Options Extra features for Service For more info regarding option codes see chapter 6 Alignments Note that if the option code numbers are changed these have to be confirmed with pressing the OK button before the options are stored otherwise changes will be lost e Initialize NVM The moment the processor recognizes a corrupted NVM the initialize NVM line will be highlighted
20. 1 Disconnect the TV from the Mains AC Power 2 Press the CURSOR DOWN button on SHARP TV remote control while reconnecting the TV to the Mains AC Power 3 The back up software upgrade application will start 5 9 3 Stand by Software Upgrade via USB In this chassis it is possible to upgrade the Stand by software via a USB stick The method is similar to upgrading the main software via USB Use the following steps 1 Create a directory UPGRADES on the USB stick 2 Copy the Stand by software part of the one zip file e g StandbyFactory_88 0 0 0 upg into this directory 3 Insert the USB stick into the TV 4 Start the download application manually see section _ Manual Software Upgrade 5 Select the appropriate file and press the OK button to upgrade 5 9 4 Content and Usage of the One Zip Software File Below the content of the One Zip file is explained and instructions on how and when to use it e BalanceFPGA_S55XX_x x x x_prod zip Contains the BalanceFPGA software in upg format e FUS_S55XX_x x x x_prod zip Contains the autorun upg which is needed to upgrade the TV main software and the software download application e PNX5130UPG_S55XX_x x x x_prod zip Contains the PNX5130 software in upg format e StandbySW_S55XX_x x x x_prod zip Contains the StandbyFactory software in upg format e ProcessNVM_S55XX_x x x x_prod zip Default NVM content Must be programmed v
21. 5 1 5 2 5 2 1 LC 32LE631 LC 40LE631 LC 46LE631 SERVICE MODES ERROR CODES AND FAULT FINDING 5 Service Modes Error Codes and Fault Finding Index of this chapter 5 1 Test Points 5 2 Service Modes 5 3 Stepwise Start up 5 4 Service Tools 5 5 Error Codes 5 6 The Blinking LED Procedure 5 7 Protections 5 8 Fault Finding and Repair Tips 5 9 Software Upgrading Test Points As most signals are digital it will be difficult to measure wave forms with a standard oscilloscope However several key ICs are capable of generating test patterns Perform measurements under the following conditions e Service Default Mode e Video Colour bar signal e Audio 3 kHz left 1 kHz right Service Modes Service Default mode SDM and Service Alignment Mode SAM offers several features for the service technician while the Customer Service Mode CSM is used for communication between the call centre and the customer Service Default Mode SDM Purpose e To create a pre defined setting to get the same measurement results as given in this manual e To override SW protections detected by stand by processor and make the TV start up to the step just before protection a sort of automatic stepwise start up See section 5 3 Stepwise Start up e To start the blinking LED procedure where only LAYER 2 errors are displayed see also section 5 5 Error Codes Specifications Table 5 1 SDM default sett
22. Install start frequency from 0 MHz Install end frequency 999 Install end frequency as 999 MHz Default install frequency Installation Digital only Select Digital only or Digital Analogue before Digital Analogue installation Development file Development 1 file version Display parameters DISPT5 0 9 7 Display information is for development purposes versions Acoustics parameters ACSTS 5 2 6 6 PQ TV550 1 0 27 7 PQS Profile set PQF Fixed settings PQU User styles Development 2 file version 12NC one zip software Display information is for development purposes Initial main software NVM version e g S5551_0 9 16 0 Flash units software Temp com file version none Upload to USB Channel list To upload several settings from the TV to an USB stick Personal settings Option codes Alignments Identification data History list All options included Download from USB Channel list To download several settings from the USB stick to Personal settings the TV Option codes Alignments Identification data All options included NVM editor Type number Press OK to enter see type plate Enter the model name e g LC32LE630E whitout Production Code Press OK to enter see type plate Serial Number
23. Now two things can be done dependent of the service instructions at that moment Save the content of the NVM for development analysis before initializing This will give the Service department an extra possibility for diagnosis e g when Develop ment asks for this Initialize the NVM Note When the NVM is corrupted or replaced there is a high possibility that no picture appears because the display code is not correct So before initializing the NVM via the SAM a pic ture is necessary and therefore the correct display option has to be entered Refer to Chapter 6 Alignments for details To adapt this option it s advised to use a method via a standard RC described below Changing the display option via a standard RC Key in the code 062598 directly followed by the MENU or HOME button and XXX where XXX is the 3 digit decimal display code as mentioned on the below table Table 5 1 2 Display options More de tails on Table 6 6 Size Display option Display option Panel Y New VE Panel F 32 327 374 40 329 366 46 330 375 Make sure to key in all three digits also the leading zero s If the above action is successful the front LED will go out as an indication that the RC sequence was correct After the display option is changed in the NVM the TV will go to the Stand by mode If the NVM was corrupted or empty before this action it will be initial
24. PWM and BOOST output The higher level requirement is that audio and video and unblank the video should be demuted without transient effects and that the audio should be demuted maximum 1s before or at the same time as the unblanking of the video Switch on the Ambilight functionality according the last status settings Startup screen Option lt and Installation setting Photoscreen ON Display cfg file present and up to date according correct display option Prepare Start screen Display config file and copy to Flash 18770_253_100216 eps 100216 Figure 5 6 Semi Stand by to Active flowchart EEFL or LED backlight 50 100 Hz only LC 32LE631 LC 40LE631 LC 46LE631 Service Modes Error Codes and Fault Finding continued The assumption here is that a fast toggle lt 2s Semi Stand by can only happen during ON gt SEMI gt ON In these states the AVC is still active and can provide the 2s delay If the transition ON gt SEMI gt STBY gt SEMI gt ON can be made in less than 2s Wait until previous on state is left more than 2 we have to delay the semi gt stby transition until seconds ago to prevent LCD display problems the requirement is met Assert RGB video blanking and audio mute There is no need to define the Backlight already on display timings since the timing splash screen gt implementation is part of the Tcon r No Initialize audio and video processing IC s and functions
25. S 000X 0000 number of software recoveries SW EVENT LOG reboots S 0000 000X number of software events SW EVENT LOG events H 000X 0000 number of hardware errors H 0000 000X number of hardware events SW EVENT LOG events LC 32LE631 LC 40LE631 LC 46LE631 Service Modes Error Codes and Fault Finding continued 5 3 How to Exit CSM Press MENU or HOME Back key on the RC transmitter Stepwise Start up When the TV is in a protection state due to an error detected by stand by software error blinking is displayed and SDM is activated via shortcutting the SDM solder path on the SSB the TV starts up until it reaches the situation just before protection So this is a kind of automatic stepwise start up In combination with the start up diagrams below you can see which supplies are present at a certain moment Caution in case the start up in this mode with a faulty FET 7UOX is done you can destroy all IC s supplied by the 1V8 and 1v1 due to overvoltage 12V WakeUp requested Acquisition needed Tact switch pushed stby requested and no data Acquisition required Tact switch pushed Tact switch pushed last status is hibernate after mains ON Hibernate on XVX line It is recommended to measure first the FET 7U0X or others FET s on shortcircuit before activating SDM via the service pads The abbreviations SP and MP in the figures stand f
26. a error bits in the status registers of ICs e Via polling on I O pins going to the stand by processor e Via sensing of analog values on the stand by processor or the PNX8550 e Via a not acknowledge of an I2C communication Take notice that some errors need several minutes before they start blinking or before they will be logged So in case of problems wait 2 minutes from start up onwards and then check if the front LED is blinking or if an error is logged Monitored Error Error Buffer Description Layer 1 Layer 2 by Prot Blinking LED Device Defective Board PC3 2 13 MIPS E BL EB SSB SSB C2 2 14 MIPS E BL EB SSB SSB C4 2 18 MIPS E BL EB SSB SSB PNX doesn t boot HW cause 2 15 Stby uP P BL PNX8550 SSB 12V 3 16 Stby uP P BL Supply Inverter or display supply 3 17 MIPS E EB Supply PNX51X0 2 9 21 MIPS E EB PNX51X0 200 Hz board HDMI mux 2 23 MIPS E EB Sil9x87A SSB 12C switch 2 24 MIPS E EB PCA9540 SSB Channel dec DVB S 2 28 MIPS E EB STV0903 SSB Lnb controller 2 31 MIPS E EB LNBH23 SSB Tuner 2 34 MIPS E EB DTT 71300 SSB Main nvm 2 35 MIPS E EB STM24C64 SSB Tuner DVB S 2 36 MIPS E EB STV6110 SSB T sensor SSB set 2 42 MIPS E EB LM 75 T sensor T sensor LED driver Tcon 7 42 MIPS E EB LM 75 T sensor PNX doesn t boot SW cause 2 53 Stby uP P BL PNX8550 SSB Display 5 64 MIPS E BL EB Altera Display Extra Info Other root causes for t
27. ast 100 Brightness 50 Colour 0 Light Sensor Off Picture format Unscaled Brilliant colour processor Picture Setting Dynamic Contrast Off Dynamic Backlight Off Colour Enhancement Off Gamma 0 e Go to the SAM and select Alignments gt White point White point alignment LCD screens e Use a 100 white screen format 720p50 to the HDMI input and set the following values Colour temperature Cool All White point values to 127 In case you have a colour analyser e Measure in a dark environment with a calibrated contactless colour analyser Minolta CA 210 or Minolta CS 200 in the centre of the screen and note the x y value e Change the pattern to 90 white screen If a Quantum Data generator is used select the GreyAll test pattern at level 230 e Adjust the correct x y coordinates while holding one of the White point registers R G or B on 127 by means of decreasing the value of one or two other white points to the correct x y coordinates see Table 6 1 White D alignment values LED Minolta CA 210 Tolerance dx 0 002 dy 0 002 e Repeat this step for the other colour temperatures that need to be aligned e When finished press OK on the RC and then press STORE in the SAM root menu to store the aligned values to the NVM e Restore the initial picture settings after the alignments Table 6 1 White D alignmen
28. at the end of the bootscript AVC releases Reset Ethernet Reset USB and Reset DVBs when the end of the AVC boot script is detected Reset Audio and Audio Mute Up are switched by MIPS code later on in the startup process Bootscript ready in 1250 ms Set I C slave address of Standby pP to 60h RPC start comm protocol lash to Ram image transfer succeeded within 30s SW initialization succeeded within 20s Yes Enable Alive check mechanism l MIPS reads the wake up reason from standby pP lake up reason coldboot amp not semi standby Startup screen cfg file present 85500 sends out startup screen 85500 starts up the display Startup screen visible Initialize audio initialize tuner and channel decoders Initialize source selection Reset system is switched HIGH by the AVC at the end of the bootscript AVC releases Reset Ethernet Reset USB and Reset DVBs when the end of the AVC boot script is detected Reset Audio and Audio Mute Up are switched by MIPS code later on in the startup process Timing needs to be updated if more mature info is available Timing needs to be updated if more mature info is available Wait until AVC starts to communicate Startup screen shall only be visible when there is a coldboot to an active state end situation The startup screen shall not be visible when waking up for reboot reasons or waking up to semi standby conditions or waking up to
29. ave power Also here the standby state has to be maintained for at least 4s before starting another state transition Stand by 18770_256_100216 eps 100216 Figure 5 9 Semi Stand by to Stand by flowchart LC 32LE631 LC 40LE631 LC 46LE631 Service Modes Error Codes and Fault Finding continued 5 5 Error Codes 5 5 1 Introduction The error code buffer contains all detected errors since the last time the buffer was erased The buffer is written from left to right new errors are logged at the left side and all other errors shift one position to the right When an error occurs it is added to the list of errors provided the list is not full When an error occurs and the error buffer is full then the new error is not added and the error buffer stays intact history is maintained To prevent that an occasional error stays in the list forever the error is removed from the list after more than 50 hrs of operation When multiple errors occur errors occurred within a short time span there is a high probability that there is some relation between them New in this chassis is the way errors can be displayed e If no errors are there the LED should not blink at all in CSM or SDM No spacer must be displayed as well e There is a simple blinking LED procedure for board level repair home repair so called LAYER 1 errors next to the existing errors which are LAYER 2 errors see Table 5 2 LAYER 1 errors
30. ayed Vv Set is starting up with software upgrade menu appearing on screen 2 The TV set will start up automatically in the download application if main TV software is not loaded AA y 1 Plug the USB stick into the TV set and select 3 Plug the prepared USB stick into the TV set Follow the the autorun upg file in the displayed browser instructions in the UART log file press Right cursor key to enter the list Navigate to the autorun upg file in the UART logging printout via the cursor keys on the remote control When the correct file is selected press Ok Vv Vv 2 Now the main software will be loaded automatically supported by a progress bar 4 Press Down cursor and Ok to start flashing the main TV software Printouts like L 1 100 V 1 100 and P 1 100 should be visible now in the UART logging Vv y 3 Wait until the message Operation successful is displayed yi 5 Wait until the message Operation successful is logged in and remove all inserted media Restart the TV set the UART log and remove all inserted media Restart the TV set v Set the correct Display code via 062598 HOME xxx where xxx is the 3 digit display panel code see Table 5 1 2 y After entering the Display Option code the set is going to Standby validation of code AA Restart the set
31. ce Since in these cases checking of observers polling of ADCs and filtering of input values are all heavily software based these protections are referred to as software protections There are several types of software related protections solving a variety of fault conditions e Related to supplies presence of the 5V 3V3 and 1V2 needs to be measured no protection triggered here e Protections related to breakdown of the safety check mechanism E g since the protection detections are done by means of software failing of the software will have to initiate a protection mode since safety cannot be guaranteed any more Remark on the Supply Errors The detection of a supply dip or supply loss during the normal playing of the set does not lead to a protection but to a cold reboot of the set If the supply is still missing after the reboot the TV will go to protection Protections during Start up During TV start up some voltages and IC observers are actively monitored to be able to optimise the start up speed and to assure good operation of all components If these monitors do not respond in a defined way this indicates a malfunction of the system and leads to a protection As the observers are only used during start up they are described in the start up flow in detail see section 5 3 Stepwise Start up Hardware Protections The only real hardware protection in this chassis appears in case of an audio problem e g DC vol
32. creen Logging When something is wrong with the TV set f i the set is reboot ing you can check for more information via the logging in Hy perterminal The Hyperterminal is available in every Windows application via Programs Accessories Communications Hy perterminal After start up of the Hyperterminal fill in a name f i logging in the Connection Description box then apply the following settings 1 COMx 2 Bits per second 115200 3 Data bits 8 4 Parity none 5 Stop bits 1 6 Flow control none During the start up of the TV set the logging will be displayed This is also the case during rebooting of the TV set the same logging appears time after time Also available in the logging is the Display Option Code useful when there is no picture look for item DisplayRawNumber in the beginning of the logging Tip when there is no picture available during rebooting you are able to check for error devices in the logging LAYER 2 error which can be very helpful to determine the failure cause of the reboot For protection state there is no logging Guidelines Uart logging Description possible cases Uart loggings are displayed e When Uart loggings are coming out the first conclusion we can make is that the TV set is starting up and communication with the flash RAM seems to be supported The PNX855xx is able to read and write in the DRAMs e We can not yet conclude Flas
33. e In the Uart log startup script we can observe and check the enabled loaded option codes Defective sectors bad blocks in the Nand Flash can also be reported in the logging Startup in the SW upgrade application and observe the Uart logging Starting up the TV set in the Manual Software Upgrade mode will show access to USB meant to copy software content from USB to the DRAM Progress is shown in the logging as follows cosupgstdcmds_mcmdwritepart Programming 102400 bytes 40505344 of 40607744 bytes programmed Startup in Jett Mode Check Uart logging in Jet mode mentioned as JETT UART READY Uart logging changing preset gt COMMAND calling DFB source RC6 system 0 key 4 Loudspeakers Make sure that the volume is set to minimum during disconnecting the speakers in the ON state of the TV The audio amplifier can be damaged by disconnecting the speakers during ON state of the set PSL In case of no picture when CSM test pattern is activated and backlight doesn t light up it s recommended first to check the inverter on the PSL wiring LAYER 2 error 17 is displayed in SDM Tuner Attention In case the tuner is replaced always check the tuner options Display option code Attention In case the SSB is replaced always check the display option code in SAM even when picture is available Performance with the incorrect display option code can lead to unwanted side effects for certa
34. er supply and results in protection LAYER 1 error 3 in case of absence When SDM is activated we see blinking LED LAYER 2 error 16 e Error 17 Invertor or Display Supply Here the status of the Power OK is checked by software no protection will occur during failure of the invertor or display supply no picture only error logging LED blinking of LAYER 1 error 3 in CSM in SDM this gives LAYER 2 error 17 Error 21 PNX51X0 When there is no I2 C communication towards the PNX51X0 after start up LAYER 2 error 21 will be logged and displayed via the blinking LED procedure if SDM is switched on This device is located on the 200 Hz panel from the display e Error 23 HDMI When there is no 1 C communication towards the HDMI mux after start up LAYER 2 error 23 will be logged and displayed via the blinking LED procedure if SDM is switched on e Error 24 I2C switch When there is no I C communication towards the 1 C switch LAYER 2 error 24 will be logged and displayed via the blinking LED procedure when SDM is switched on Remark this only works for TV sets with an I C controlled screen included e Error 28 Channel dec DVB S When there is no 1 C communication towards the DVB S channel decoder blinking LED procedure if SDM is switched on LC 32LE631 LC 40LE631 LC 46LE631 Service Modes Error Codes and Fault Finding continued 5 6 5 6 1 Error 31 Lnb controller When there is no 1 C
35. ess the volume minus button on the TVs local keyboard for 5 10 seconds Press the SOURCE button for 10 seconds until the F disappears from the screen or the noise on the screen is replaced by blue mute v The noise on the screen is replaced with the blue mute or the F is disappeared x Unplug the mains cord to verify the correct disabling of the Factory mode z Program display option code via 062598 MENU followed by the 3 digits code of the display this code can be found on Table 5 1 2 y After entering display option code the set is going in stand by mode validation of code y Restart the set Figure 5 12 SSB replacement flowchart Factory mode LC 32LE631 LC 40LE631 LC 46LE631 Service Modes Error Codes and Fault Finding continued 5 9 5 9 1 Mains on importantin tonnation can b found inthe UART logging 18753_211_100811 eps 100811 Figure 5 13 SSB start up SOFTWARE UPGRADING Software Upgrading Introduction The set software and security keys are stored in a NAND Flash which is connected to the PNX855xx It is possible for the user to upgrade the main software via the USB port This allows replacement of a software image in a stand alone set without the need of an E JTAG debugger A description on how to upgrade the main software can be found in
36. h RAM and DRAMs are fully operational reliable There still can be errors in the data transfers DRAM erros read write speed and timing control No Uart logging at all e Incase there is no Uart logging coming out check if the startup script can be send over the I C bus 3 trials to startup power supplies are switched on and stable e No startup will end up in a blinking LED status error LAYER 1 2 error LAYER 2 53 startup with SDM solder paths short e Error LAYER 2 15 hardware cause is more related to a supply issue while error LAYER 2 53 software cause refers more to boot issues 5 8 9 5 8 10 5 8 11 5 8 12 Uart loggings reporting fault conditions error messages error codes fatal errors e Failure messages should be checked and investigated For instance fatal error on the PNX51x0 check startup of the back end processor supplies reset I C bus gt error mentioned in the logging as 51x0 failed to start by itself e Some failures are indicated by error codes in the logging check with error codes table see Table 5 2 Error code overview e g gt lt lt lt ERROR gt gt gt PLFPOW_MERR C First Error id 10 Layer_1 2 Layer_2 23 e PC bus error mentioned as e g C bus 4 blocked e Notall failures or error messages should be interpreted as fault For instance root cause can be due to wrong option codes settings gt e g DVBS2Suppoprted False Tru
37. he stabilizer is 7UD2 while for the other diversities 7UCO is used e 8V3 supply voltage 3V3 nominal for 631 series SSB diversities provided by 7UD3 in this case the 12V to 3V3 DC DC converter is not present e 5V TUN supply voltage 5V nominal for tuner and IF amplifier 3V3 STANDY 3V3 nominal is the permanent voltage supplying the Stand by microprocessor inside PNX855xx Supply voltage 1V1 is started immediately when 12V voltage becomes available 12V is enabled by STANDBY signal when low Supply voltages 3V3 2V5 1V8 1V2 and 5V TUN are switched on by signal ENABLE 3V3 when low provided that 12V detected via 7U40 and 7U41 is present 12V is considered OK gt DETECT2 signal becomes high 12V to 1V8 12V to 3V3 12V to 5V DC DC converter can be started up if it rises above 10V and doesn t drop below 9V5 A small delay of a few milliseconds is introduced between the start up of 12V to 1V8 DC DC converter and the two other DC DC converters via 7U48 and associated components Description DVB S2 e LNB RF1 OV disabled 14V or 18V in normal operation LNB supply generated via the second conversion channel of 7T03 followed by 7T50 LNB supply control IC It provides supply voltage that feeds the outdoor satellite reception equipment e 3V3 DVBS 3V3 nominal 2V5 DVBS 2V5 nominal and 1V DVBS 1 03V nominal power supply for the silicon tuner and channel decoder 1V DVBS is generated
38. his error can be due to hardware e Rebooting When a TV is constantly rebooting due to in ternal problems most of the time no errors will be logged or blinked This rebooting can be recognized via a Hyper terminal for Hyperterminal settings see section 5 8 Fault Finding and Repair Tips 5 8 7 Logging It s shown that the loggings which are generated by the main software keep continuing Error 13 I2C bus 3 SSB bus blocked Current situation when this error occurs the TV will constantly reboot due to the blocked bus Error 14 I2C bus 2 TV set bus blocked Current situa tion when this error occurs the TV will constantly reboot due to the blocked bus e Error 18 I C bus 4 Tuner bus blocked In case this bus is blocked short the SDM solder paths on the SSB during startup LAYER error 2 18 will be blinked e Error 15 PNX8550 doesn t boot Indicates that the main processor was not able to read his bootscript This error will point to a hardware problem around the PNX8550 supplies not OK PNX 8550 completely dead 1C link between PNX and Stand by Processor broken etc When error 15 occurs it is also possible that I C1 bus is blocked NVM I2C1 can be indicated in the schematics as follows SCL UP MIPS SDA UP MIPS LAYER 2 error 28 will be logged and displayed via the problems regarding the DDR s and the bootscript reading from the PNX8550 e Error 16 12V This voltage is made in the pow
39. ia USB be aware that all alignments stored in NVM are overwritten here 5 9 5 UART logging 2K10 see section 5 8 Fault Finding and Repair Tips 5 8 7 Logging LC 32LE631 LC 40LE631 LC 46LE631 ALIGNMENTS 6 Alignments 6 1 6 2 6 3 Index of this chapter 6 1 General Alignment Conditions 6 2 Hardware Alignments 6 3 Software Alignments 6 4 Option Settings 6 5 Reset of Repaired SSB 6 6 Total Overview SAM modes General Alignment Conditions 6 3 1 Perform all electrical adjustments under the following conditions Power supply voltage depends on region AP NTSC 120 VAC or 230 Vac 50 Hz 10 AP PAL multi 120 230 Vac 50 Hz 10 EU 230 Vac 50 Hz 10 LATAM NTSC 120 230 Vac 50 Hz 10 US 120 Vac 60 Hz 10 Connect the set to the mains via an isolation transformer with low internal resistance Allow the set to warm up for approximately 15 minutes Measure voltages and waveforms in relation to correct ground e g measure audio signals in relation to AUDIO_GND Caution It is not allowed to use heat sinks as ground Test probe Ri gt 10 MQ Ci lt 20 pF Use an isolated trimmer screwdriver to perform alignments Alignment Sequence First set the correct options In SAM select Option numbers Fill in the option settings for Group 1 and Group 2 according to Table 6 6 see also paragraph
40. in conditions LC 32LE631 LC 40LE631 LC 46LE631 Service Modes Error Codes and Fault Finding continued 5 8 13 SSB Replacement Follow the instructions in the flowchart in case a SSB has to be exchanged See figure SSB replacement flowchart Instruction note SSB replacement 55x x Before starting prepare a USB memory stick with the latest software download the latest Main Software Fus unzip this file create a folder upgrades in the root of a USB stick size gt 50 MB and save the autorun upg file in this upgrades folder Note it is possible to rename this file e g S54x_SW_version upg this in case there are more than one autorun upg files on the USB stick Setis still operating Yes y Connect the USB stick to the set go to SAM and save the current TV settings via Upload to USB Start up the set Due to a possible wrong display option code in the received Service SSB NVM it s possible that no picture is displayed Due to this the download application will not be shown either This tree enables you to load the main software step by step via the UART logging on the PC h TET this for visual feedback No picture displayed Set behaviour Picture displayed Set is starting up without software upgrade menu appearing on screen 1 Start up the TV set equiped with the Service SSB and enable the UART logging on the PC Picture displ
41. ings Default Region Freq MHz system Europe AP PAL Multi 475 25 PAL B G Europe AP DVB T 546 00 PID DVB T Video OB 06 PID PCR 0B 06 PID Audio 0B 07 5 2 2 e All picture settings at 50 brightness colour contrast e Sound volume at 25 e All service unfriendly modes if present are disabled like Sleep timer Child parental lock Picture mute blue mute or black mute Automatic volume levelling AVL Skip blank of non favourite pre sets How to Activate SDM For this chassis there are two kinds of SDM an analogue SDM and a digital SDM Tuning will happen according Table 5 1 e Analogue SDM use the standard RC transmitter and key in the code 062596 directly followed by the MENU or HOME button Note It is possible that together with the SDM the main menu will appear To switch it off push the MENU or HOME button again Analogue SDM can also be activated by grounding for a moment the solder path on the SSB with the indication SDM see Service mode pad e Digital SDM use the standard RC transmitter and key in the code 062593 directly followed by the MENU or HOME button Note It is possible that together with the SDM the main menu will appear To switch it off push the MENU or HOME button again 19100_057_110217 eps 110217 Figure 5 1 Service mode pad After activating this
42. ion 5 5 Error Codes How to Activate CSM Key in the code 123654 via the standard RC transmitter Note Activation of the CSM is only possible if there is no user menu on the screen How to Navigate By means of the CURSOR DOWN UP knob on the RC transmitter can be navigated through the menus Contents of CSM The contents are reduced to 3 pages General Software versions and Quality items The group names itself are not shown anywhere in the CSM menu General Set Type This information is very helpful for a helpdesk workshop as reference for further diagnosis In this way it is not necessary for the customer to look at the rear of the TV set Note that if an NVM is replaced or is initialized after corruption this set type has to be re written to NVM The update can be done via the NVM editor available in SAM Production Code Displays the production code the serial number of the TV Note that if an NVM is replaced or is initialized after corruption this production code has to be re written to NVM The update can be done via the NVM editor available in SAM Installed date Indicates the date of the first installation of the TV This date is acquired via time extraction Options 1 Gives the option codes of option group 1 as set in SAM Service Alignment Mode Options 2 Gives the option codes of option group 2 as set in SAM Service Alignment Mode 12NC SSB Gives an identification of the SSB as stored in
43. ized first loaded with default values This initial izing can take up to 20 seconds How to Navigate In SAM the menu items can be selected with the CURSOR DOWN UP LEFT RIGHT knob of the RC transmitter Store go right All options and alignments are stored when pressing cursor right or the OK button and then the OK button Operation hours display Displays the accumulated total of operation hours of the screen itself In case of a display replacement reset to 0 or to the consumed operation hours of the spare display SW Maintenance SW Events In case of specific software problems the development department can ask for this info HW Events In case of specific software problems the development department can ask for this info Event 26 refers to a power dip this is logged after the TV set reboots due to a power dip Event 17 refers to the power OK status sensed even before the 3 x retry to generate the error code Test settings For development purposes only Development file versions Not useful for Service purposes this information is only used by the development department Upload to USB To upload several settings from the TV to an USB stick which is connected to the SSB The items are Channel list Personal settings Option codes Alignments Identification data includes the set type and prod code all 12NC like SSB display boards History
44. mode SDM will appear in the upper right corner of the screen when a picture is available How to Navigate When the MENU or HOME button is pressed on the RC transmitter the TV set will toggle between the SDM and the normal user menu How to Exit SDM Use one of the following methods e Switch the set to STAND BY via the RC transmitter e Via a standard customer RC transmitter key in 00 sequence Service Alignment Mode SAM Purpose e To perform software alignments e To change option settings e To easily identify the used software version e To view operation hours e To display or clear the error code buffer How to Activate SAM Via a standard RC transmitter Key in the code 062596 directly followed by the INFO or OK button After activating SAM with this method a service warning will appear on the screen continue by pressing the OK button on the RC LC 32LE631 LC 40LE631 LC 46LE631 Service Modes Error Codes and Fault Finding continued Contents of SAM e Hardware Info A SW Version Displays the software version of the main software example S5551_0 9 21 0 AAAAB_X Y W Z e AAAAz the chassis name e B the SW branch version This is a sequential number this is no longer the region indication as the software is now multi region e X Y W Z the software version where X is the main version number different numbers are not compatible
45. or e SP protection or error detected by the Stand by Processor e MP protection or error detected by the MIPS Main Processor St by requested tact SW pushed WakeUp requested SDM GoToProtection GoToProtection Protection 18770_250_100216 eps 100402 Figure 5 3 Transition diagram LC 32LE631 LC 40LE631 LC 46LE631 Service Modes Error Codes and Fault Finding continued Stand by or Protection Standby Supply starts running All standby supply voltages become available st by P resets Initialise I O pins of the st by uP Switch reset AVC LOW reset state Switch reset system LOW reset state Switch reset Ethernet LOW reset state Switch reset USB LOW reset state Switch reset DVBs LOW reset state keep Audio reset and Audio Mute Up HIGH If the protection state was left by short circuiting the SDM pins detection of a protection condition during startup will stall the startup Protection conditions in a playing set will be ignored The protection mode will not be entered Switch Audio Reset high start keyboard scanning RC detection Wake up reasons are Itis low in the standby mode if the standby off mode lasted longer than 10s Switch ON Platform and display supply by switching LOW the Standby line 12V 24Vs AL and Bolt on power is switched on followed by the 1V2 DCDC converter O tect2 high received te ea within 2 seconds ayer r Layer2 16 Detect2 is
46. ould rise within a few milliseconds Tips e Behaviour comparison with a reference TV550 platform can be a fast way to locate failures e If 12V stays low check the integrity of fuse 1U40 e Check the integrity at least no short circuit between drain and source of the power MOS FETs before starting up the platform in SDM otherwise many components might be damaged Using a ohmmeter can detect short circuits between any power rail and ground or between 12V and any other power rail e Short circuit at the output of an integrated linear stabilizer 7UCO 7UD2 or 7UD3 will heat up this device strongly e Switching frequencies should be 500 kHz 600 kHz for 12 V to 1 1 V and 12 V to 1 8 V DC DC converters LC 32LE631 LC 40LE631 LC 46LE631 Service Modes Error Codes and Fault Finding continued 5 8 6 5 8 7 5 8 8 900 kHz for 12 V to 3 3 V and 12 V to 5 V DC DC converters The DVB S2 supply 24 V to 5 V and 24 V to V LNB DC DC converters operates at 300 kHz while for 5 V to 1 1 V DC DC converter 900 kHz is used Exit Factory Mode When an F is displayed in the screen s right corner this means the set is in Factory mode and it normally happens after a new SSB is mounted To exit this mode push the VOLUME minus button on the TV s local keyboard for 10 seconds this disables the continuous mode Then push the SOURCE button for 10 seconds until the F disappears from the s
47. rithm switch off LCD backlight I O or 12C Mute all video outputs Wait x ms display file Instruct 200Hz 7 The exact timings to Tcon to turn off Switch off LVDS output in 85500 switch off the the display display LVDS delay lamp delay are defined in the display file Switch off the display power by switching LCD PWR ON high Semi Standby Figure 5 8 Active to Semi Stand by flowchart 18770_255_100216 eps 100216 LC 32LE631 LC 40LE631 LC 46LE631 Service Modes Error Codes and Fault Finding continued Semi Stand by If ambientlight functionality was used in semi standby lampadaire mode switch off ambient light see CHS ambilight Delay transition until ramping down of ambient light is If this is not performed and the set is finished switched to standby when the switch off of the ambilights is still ongoing the lights will switch off abruptly when the supply is cut transfer Wake up reasons to the Stand by pP Switch Memories to self refresh this creates a more stable condition when switching off the power Switch AVC system in reset state reset system and reset AVC lines Switch reset USB Reset Ethernet and Reset DVBs LOW Wait 10ms Disable all supply related protections and switch off the DC DC converters ENABLE 3V3n Switch OFF all supplies by switching HIGH the Standby I O line Important remarks release reset audio 10 sec after entering standby to s
48. rs Select this sub menu to set all options at once expressed in two long strings of numbers An option number or option byte represents a number of different options When you change these numbers directly you can set all options very quickly All options are controlled via eight option numbers When the NVM is replaced all options will require resetting To be certain that the factory settings are reproduced exactly you must set both option number lines You can find the correct option numbers on Table 6 6 following page The first line group 1 indicates hardware options 1 to 4 the second line group 2 indicate software options 5 to 8 Every 5 digit number represents 16 bits so the maximum value will be 65536 if all options are set When all the correct options are set the sum of the decimal values of each Option Byte OB will give the option number Option Code Overview Refer to the Table 6 6 for the correct option codes Important after having edited the option numbers as described above you must press OK on the remote control before the cursor is moved to the left Reset of Repaired SSB After a repaired SSB has been mounted in the set set repair on board level the type number CTN and production code of the TV has to be set according to the type plate of the set For this you can use the NVM editor in SAM This action also ensures the correct functioning of the Net TV feature and access to the
49. short blinks where n 1 to 9 A pause of approximately 3 s When all the error codes are displayed the sequence finishes with a LED blink of 3 s spacer The sequence starts again Example Error 12 8600 After activation of the SDM the front LED will show lis 2 3 One long blink of 750 ms which is an indication of the decimal digit followed by a pause of 1 5 s Two short blinks of 250 ms followed by a pause of 3s Eight short blinks followed by a pause of 3 s 4 Six short blinks followed by a pause of 3 s 5 One long blink of 3 s to finish the sequence spacer 6 The sequence starts again How to Activate Use one of the following methods e Activate the CSM The blinking front LED will show only the latest layer 1 error this works in normal operation mode or automatically when the error protection is monitored by the Stand by processor In case no picture is shown and there is no LED blinking read the logging to detect whether error devices are mentioned see section 5 8 Fault Finding and Repair Tips 5 8 7 Logging e Activate the SDM The blinking front LED will show the entire content of the LAYER 2 error buffer this works in normal operation mode or when SDM via hardware pins is activated when the tv set is in protection Protections Software Protections Most of the protections and errors use either the stand by microprocessor or the MIPS controller as detection devi
50. t values LED Minolta CA 210 Value Cool 9420K Normal 8120K Warm 6080K x 0 280 0 291 0 318 y 0 293 0 308 0 341 Alignments continued 6 4 6 4 1 6 4 2 6 4 3 Option Settings 6 4 4 Introduction The microprocessor communicates with a large number of C ICs in the set To ensure good communication and to make digital diagnosis possible the microprocessor has to know which ICs to address The presence absence of these PNX51XX ICs back end advanced video picture improvement IC which offers motion estimation and compensation features commercially called HDNM plus integrated Ambilight control is made known by the option codes Notes e After changing the option s save them by pressing the OK button on the RC before the cursor is moved to the left select STORE in the SAM root menu and press OK on the RC e The new option setting is only active after the TV is switched off stand by and on again with the mains switch the NVM is then read again 6 4 5 Dealer Options For dealer options in SAM select Dealer options See Table 6 6 SAM mode overview 6 5 Service Options From 2011 onwards it is not longer possible to change individual option settings in SAM Options can only be changed all at once by using the option codes as described in section 6 4 4 Table 6 6 Option numbers LC 32LE631 LC 40LE631 LC 46LE631 Opt No Option numbe
51. tage on the speakers This protection will only affect the Class D audio amplifier item 7D10 see diagram BO3A and puts the amplifier in a continuous burst mode cyclus approximately 2 seconds Repair Tip e There still will be a picture available but no sound While the Class D amplifier tries to start up again the cone of the loudspeakers will move slowly in one or the other direction until the initial failure shuts the amplifier down this cyclus starts over and over again The headphone amplifier will also behaves similar LC 32LE631 LC 40LE631 LC 46LE631 Service Modes Error Codes and Fault Finding continued 5 8 5 8 2 5 8 3 5 8 4 5 8 5 Fault Finding and Repair Tips Read also section 5 5 Error Codes 5 5 4 Error Buffer Extra Info Audio Amplifier The Class D IC 7D10 has a powerpad for cooling When the IC is replaced it must be ensured that the powerpad is very well pushed to the PWB while the solder is still liquid This is needed to insure that the cooling is guaranteed otherwise the Class D IC could break down in short time AV PIP To check the AV PIP board if present functionality a dedicated tespattern can be invoke as follows select the multiview icon in the User Interface and press the OK button Apply for the main picture an extended source e g HDMI input Proceed by entering CSM push 123654 on the remote control and press the yellow button A coloured
52. than 2s because the standby state will be maintained for at least 4s Assert RGB video blanking CPipe already generates a valid output and audio mute clock in the semi standby state display startup can start immediately when leaving the semi standby state Wait until previous on state is left more than 2 seconds ago to prevent LCD display problems Switch on the display power by The exact timings to switching LCD PWR ON low switch on the display LVDS delay lamp delay are defined in the Initialize audio and video display file Switch on LVDS output in the 85500 processing IC s and functions according needed use case Delay Lamp on with the sum of the LVDS delay and the Lamp delay indicated in the display file Switch off the dimming backlight feature set the BOOST control to nominal and make sure PWM output is set to maximum allowed PWM Switch on LCD backlight Lamp ON Wait until valid and stable audio and video corresponding to the detection algorithm requested output is delivered by the AVC AND the backlight has been switched on for at least the time which is run indicated in the display file as preheat time return Switch Audio Reset low and wait 5ms ALED set does not normally need a preheat time The preheat remains present but is set to zero in the display file Release audio mute and wait 100ms before any other audio handling is done e g volume change Restore dimming backlight feature
53. the electronic User Manual Important When the NAND Flash must be replaced a new SSB must be ordered due to the presence of the security keys Cl MAC address Perform the following actions after SSB replacement 1 Set the correct option codes see Table 6 6 2 Update the TV software gt see the eUM electronic User Manual for instructions 3 Perform the alignments as described in chapter 6 section 6 5 Reset of Repaired SSB 4 Check in CSM if the Cl key MAC address are valid 5 9 2 For the correct order number of a new SSB always refer to the Spare Parts list Main Software Upgrade e The UpgradeAll upg file is only used in the factory Automatic Software Upgrade In normal conditions so when there is no major problem with the TV the main software and the default software upgrade application can be upgraded with the AUTORUN UPG FUS part of the one zip file e g 3104 337 05661 _FUS _S5551_x x x x_prod zip This can also be done by the consumers themselves but they will have to get their software from the www sharp eu com site or via the Software Update Assistant in the user menu see eUM The autorun upg file must be placed in the root of the USB stick How to upgrade 1 Copy AUTORUN UPG to the root of the USB stick 2 Insert USB stick in the set while the set is operational The set will restart and the upgrading will start automatically As soon as
54. the ordering number of an initial factory SSB 6 6 Total Overview SAM modes Table 6 6 SAM mode overview K S N 1162V291000037 Made In China Model WMP G15 PIN 282206241036 a E 8 L rT lt NT Kets ALPHA poxrvrer marys BIG S PES A 50002 18310_221_090318 eps 090319 Figure 6 1 SSB identification Main Menu Sub menu 1 Sub menu 2 Sub menu 3 Description Hardware Info A SW version e g S5551_0 9 21 0 Display TV amp Stand by SW version and CTN serial B Stand by processor version e g STDBY_89 167 5 0 number C Production code e g see type plate Operation hours Displays the accumulated total of operation hours TV switched on off amp every 0 5 hours is increase one Errors Displayed the most recent errors Reset error buffer Clears all content in the error buffer Alignment White point Colour temperature Normal 3 different modes of colour temperature can be Warn selected Cool White point red D x LCD White Point Alignment For values see White point green x 7 Table 6 1 White D alignment values White point blue Dealer options Virgin mode Off On Select Virgin mode On Off TV starts up does not start up once with a language selection menu after the mains switch is turned on for the first time virgin mode E sticker Off On Select E sticker On Off USP s on screen Auto

service modes, error codes and fault finding

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