Wednesday, August 24, 2022

Sharp LC32, LC40 and LC43 inch LCD TVs – How to enter the service mode - Software upgrade - Service mode adjustments details - Smart TV troubleshooting and more

 

Applicable to these models

LC-32CHE5111E, LC-32CHE5111K, LC-32CHE5111KW, LC-32CHE5112E, LC-32CHE5112EW, LC-32CHE6131K, LC-32CHE6132E, LC-32CHF5111K, LC-32CFE6132E, LC-32CHE5221E, LC-32CHE6242E, LC-32CFE6241E, LC-32CFE6241K ,LC-32CFE6242E, LC-32CFE6352E, LC-32CFE6452E, LC-40CFE5111E, LC-40CFE5112E, LC-40CFE5111K, LC-40CFE6132E, LC-40CFE5221E, LC-40CFE5221K, LC-40CFE6241K, LC-40CFE6242E, LC-40CFE6351E, LC-40CFE6351K, LC-40CFE6352E, LC-40CFE6452E, LC-43CFF5111K, LC-43CFF6001K, LC-43CFF6002E, LC-43CFE5111E, LC-43CFE5111K, LC-43CFE5112E, LC-43CFE6131E, LC-43CFE6131K, LC-43CFE6132E, LC-43CFE6141EW, LC-43CFE6142EW, LC-43CFE5222E, LC-43CFE6241K, LC-43CFE6242E, LC-43CFE6252EW, LC-32CFE6351K, LC-43CFE6351E, LC-43CFE6352E, LC-43CFE6352K, LC-43CFE6451K, LC-43SFE7332E, LC-43CFE6452E, LC-43SFE7452E


How to enter the factory menu (Service Mode)

Press the RC buttons in this sequence: “Menu 1 1 4 7” to enter the factory menu.

Description:
ROOT
0 Factory Init All
1 BURNNG MODE
2 ADC ADJUST
3 PICTURE
4 SOUND
5 PANEL
6 DEBUG
7 GENERAL SETTING

8 EMC SETTING
9 INIT CHANNEL
10 SW UPGRADE
11 SW INFORMATION
12 SHIPMENT (KEEP ADC)
13 6M50 SETTING *
14 SII9679 SETTING *
15 VTV1222 SETTING *

Factory menu Homepage

0 Factory Init All
Initialize TV. Restore to factory configures.
1
BURNNG MODE
Aging mode. For test panel. If it’s in operation, use key board “power” to quit.

2 ADC SETTING
It’s for adjusting the YPBPR and PC color. Press key “right” or “ok” to enter the subpage.
ADC Mode: Display current input source and resolution.
ADC Auto Adjust: Start to auto color to get ADC value.
[ADC]R-Gain: Display current ADC R value.
[ADC]R-Offset: Display current ADC R offset value.
[ADC]G-Gain: Display current ADC G value.
[ADC]G-Offset: Display current ADC G offset value.
[ADC]B-Gain: Display current ADC B value.
[ADC]B-Offset: Display current ADC B offset value.

3 PICTURE
SOURCE:
Current input source. (use for change source)
STANDARD SETTING: Standard analog quality setting (Like contrast ...etc) for different Picture mode. It will change OSD picture menu’s standard picture mode setting.
NONLINE CURVE: The nonlinear curve for picture mode. To set OSD quality setting (like contrast. brightness ...etc) the value 0,25,50.75.100 corresponding actual nonline curve value.
W/B ADJUST: Standard white balance setting. Select warm - cold - normal mode and set its RGB value to change OSD picture menu’s white balance standard value. R-Gain increase red colour, G-Gain increase green colour, B-Gain increase blue colour.
Color Setting, Luma Setting, Peaking Setting, NR Setting, CTI Setting, Gamma, DLC, Film Mode, PQ By Pass: Change these setting will change register for PQ.
Suggest do not change these setting.

4 SOUND

SOURCE: Current input source. (use for change source)
SOUND MODE: Standard sound setting (Like EQ treble bass) for different Sound mode .It will change Sound menu’s standard sound mode setting.
EQ: sound in different frequency range value.
VOLUME CURVE: Volume curve. At least ten steps is adjustable. To set sound value from 1 to 100 corresponding actual nonline curve value. It will change current sound actual value. For example, TAB-50 is 925, that’s on the sound OSD page, use key vol+or- to adjust the value to 50, the volume is 925.
VOLUME SETTINGS: setting AVL mode and threshold ...etc. AVD: auto volume control. Vol PreScale DTV... SCART: Set different source’s sound value.
PEQ: Adjust the audio effect by different frequency range. EQ: sound in different frequency range value. PEQ: more frequency range than EQ;

5 PANEL
Backlight:
It’s for adjusting the non-eco and eco backlight.
Depends on which mode is selected in OSD.
LVDS Map ID: Modify this according to your panel. It is the combination of the TI Mode, Color Bits, Swap Port and Output Bit.
LVDS TI Mode: Have VESA or JEICA mode. It’s related to LVDS Map.
LVDS Color Bits: Set lVDS data interface type. (6bit or 8bit or 10bit).
LVDS Swap Port: LVDS A or B Port data swap.
LVDS Output Bit: Set LVDS data output type. (6bit or 8bit or 10bit).
PWM Freq: Modify PWM frequency
PWM Fraq Step: The speed when you modify PWM Freq value.
Mirror: mirror TV. Switch your screen upside down.

6 DEBUG
MStar Fac Menu:
Show MStar Factory Menu.
Uart Enable: To enable serial port with print debug infomation. If you want to got the debug info by the ISP tool, you can set this item to “ON”.
VIF setting: RF non-standard signal test.
Erase MAC: erase Mac address. The password is “
4711”.
Erase HDCP Key: erase HDCP key. Must erase key before upgrade key. The password is “
4711”.
Erase HDCP2.0 Key: erase HDCP2.0 key. Must erase key before upgrade key. The password is “
4711”.
Erase CIplus Key: erase CIplus key. Must erase key before upgrade key. The password is “
4711”.
Erase ADC: Erase ADC value. The password is “4711”.
Erase WB: Erase white balance. The password is “
4711”.
Era&Gen NandBin: Erase All and generate Nandbin (Use for production). The password is “
4711”. It will erase flash. This function is for CVTE test, Suggest do not erase this.
RB-Time: Suggest do not do this. The password is “
4711”.
Format USB device: Format USB, your USB device will be NULL.
Print to USB: debug print information output to USB device. Easy to get print out.
Logo On or Off: have power on logo or not.

7 GENERAL SETTING
Test Pattern:
Display test picture to check panel.
OVERSCAN: It’s for adjusting the over scan of picture.
Timer Test: To speed up the time. Only for QC test.
WDT: Watch dog on or off
Power On Mode: After power on state. It’s for setting power state when power on. There are three option off or on or last. ‘off’ means it’ll enter standby state; ’on’ means it’ll power on directly without standby; ‘last’ means it’ll enter the last state : standby or power on. It decided by the state when you turn off the power.
EN ADC Value: Use for keypad test. Get keypad ADC value.
ADC Value: The ADC value of current press key. Use this need EN ADC Value turn to on.
CI+ Version Switch: Switch CI+ Version both 1.2 and 1.3. It will lead TV restart.
Hotel Mode: Enter Hotel mode setting.
Capture Screen: If set to ON, we can capture screen when press setup key.

8 EMC SETTING
It’s for adjusting some parameters about EMC.
9
INIT CHANNEL
CH Table import:
import channel table from USB, need channel table in USB that export before.
CH Table export: export channel table to USB.
CH Table Init: Initial Channel Table, It will be NULL.

10 Software Upgrade
Upgrade TV:
For upgrade Software. Need UBS device and. bin file.
Bin name: .bin name for upgrade

11 SW INFORMATION
Mantis or OCS:
The model of software.
Main board: The main board of software to use.
Panel Name: The panel of software to use.
AT version: The version of factory auto test.
Build Time: The build time of software. (ID of software)
Operation Time: The time of TV total operation time counter.

12 Shipment (keey ADC WB)
Initialize TV. Restore to factory configures. But keep ADC and WB configure.
Extern:
6M50, SII9679 and VTV1222 setting item is used to boot or upgrade other chips in board. Only for 4K2K board.

SOFTWARE UPGRADE

MSD6308 Upgrade Instruction
6308 including 6308RT, 6308RTE, 6308RTEB and 6308RTEC, you should make sure the main chipset correspond to the upgrade program before upgrading. This manual provides 3 upgrading methods with 6308RT as the example, the three methods are: User menu upgrade, Power on upgrade, TFTP (network) upgrade.

At the beginning of upgrading, if prompt “PWM-REF doesn’t match”, please make sure the new software PWM-REF won’t damage the panel, and then change the file name into AllUpgrade-6308-SOS.bin and power on to upgrade.

User Menu Upgrade
A Operation Procedure
• Turn on the TV set
• Copy the bin file to the root directory of USB device
• Plug the USB device to the USB port
• Select “Software Update (USB)” on the OSD and follow the instructions. TV will switch-off automatically after upgrading finished.
The upgrade process prompts as follows:

B Upgrade Prompt
When upgrading, the TV set will light panel according to the panel parameter, and display the progress bar. If the panel parameter of board matches the panel, you will see the following image:

C Upgrade Flashing Status
You can judge the upgrade progress by flashing of the remote control LED light.
Upgrading
Red 1000ms Green1000ms alternates, the TV set will turn to Upgrade succeed or Upgrade Failed status after the upgrading process.
Main program upgrade succeed
Red 250ms Green 250ms alternates, flashing before power off.
Main program upgrade Failed
Red 1750ms Green 250ms alternates, flashing before power off.
• Notes:
• In the upgrade process, as timer software is used to control flashing, situations such as LED light stuck when creating partition of flash, is normal phenomenon.
6.3 Power On Upgrade
A Operation Procedure
• Power Off the TV set
• Copy AllUpgrade-6308XXX.bin to the root directory of your USB memory stick
• Plug the USB device to the USB port
• Power on the TV, if the upgrade file name matches the main chipset, the LED light will flashing and the upgrade process starting. The TV set won’t auto reboot after finishing the upgrade process, customer should pull the USB out and power off the TV set manually.

TFTP (network) Upgrade
A Upgrade Tools

C Upgrade Process
• Connect serial port tools
• Connect the PC and main board with network cable, connect the serial port. Set the cable adapter IP as 192.168.1.100.

Connect the serial port, enter the following command to set main board and tftp server IP. setenv ipaddr 192.168.1.101 setenv serverip 192.168.1.100 saveenves

Notes:
Direct Connect network cable between PC and MB To Upgrade is available in the version higher than svn5215.
• Run the tftpd32.exe in your upgrading folder.

After setting IP, enter the following command to upgrade the corresponding program.
Upgrade Mboot: mstar upgrade-mboot.txt
Reboot: reset
Re-enter command to set IP.
Upgrade main program: mstar mscript/auto-update.txt
Notes:
auto-update.txt will clear factory burning parameter of KEY/MAC, please use it cautiously.
upgrade-mboot.txt and auto-update.txt are text files, engineer can refer to the two text files when entering corresponding upgrade command.

PICTURE ADJUSTMENT

White Balance
• Change source to HDMI
• Load 80% White pattern from signal generator
• Enter Factory Menu by pressing MENU + 1147
• Choose 3 Picture
• Choose 3 W/B Adjust
• In 0 WB Mode choose Warm or Normal or Cold
• Change R-Gain or G-Gain or B-Grain to meet specification

HOTEL MODE

To enter Hotel mode you need press buttons on RC in following sequence: MENU 7 9 0 6.
Structure of Hotel menu:
1. Hotel Mode – on or off hotel mode
2. Source Lock – you can lock any source
3. Default Source – source which appears after turn on TV
4. Default Prog – channel which appears after turn on TV
5. DTV channel type – type of channel which appears after turn on TV
6. Default volume – volume which will be set itself after turn on TV
7. Max volume – maximum volume which can be set
8. CH Table Import – import all channels and settings from USB
9. CH Table Export – export all channels and setting to USB
10. Clear Lock – reset all hotel mode settings.

SMART TV TROUBLESHOOTING

TV cant connect to wi-fi network.
Steps to fix this issue:
• Set on your wi-fi router/access point WPA or WPA2 encryption. WEP is not supported.
• Set on your wi-fi router DNS to
8.8.8.8 (Google DNS server)
• If above does not help, try to upgrade software again.
2. Entering AQUOS NET+ is not possible
• Most probable cause may be missing or wrong MAC address.
Steps of test validity of MAC address:
1. Press
MENU + 1147 to enter factory menu
2. Go to 11 SW Information and press OK (Pic.1)
3. Check item 10 Sraf Valid MAC
4. If there is (OK), it means everything is ok (Pic. 2)
Note: It may take few seconds until “OK” shows after turning TV on.
5. If there is (NG), means either MAC address is missing or is not supported by current SDK (Pic.3).
In case of NG test result:
1. Check 7 Mac Addr
2. If value is FF:FF:FF:FF:FF:FF – this means MAC was not added during production of mainboard.
Solution to fix this issue: Request new MAC addresses from TV manufacturer.
3. If value is different than FF:FF:FF:FF:FF:FF – Means current address is not supported by software.
Solution to fix this issue: Upgrade TV software to the latest version.


Monday, August 15, 2022

LG LED TV 32LK610BPUA, 32LK610BBUA Smart JIG Power Diagnosis Muitl Gender SMPS (Power board) fault diagnosis method

 

Power Board Muitl Gender JIG Diagram (PN: RAD33187801)



Power Board Muitl Gender JIG Diagnostic model List

Existing 12Y, 13Y, 14Y, 15Y LED models included
15Y, 16Y, 17Y - 18Y OLED, 16 -17 -18 Y LED model Power diagnosis function newly added

15Y -16Y -17Y -18Y OLED Model, 16Y -17Y - 18Y LED Model

Power Board Muitl Gender How to Connect

Power Board Muitl Gender JIG


Power BD Smart Jig Voltage Switch

24V >
20V >

24V
20V

13.2V or 18V  > 24V


Smart Jig Voltage Setting

Note on setup
(The correct power diagnosis can be made only if it is set correctly.)
24V Power Board : Change the switch to 24V of Smart Jig Voltage
20V Power Board : Change the switch to 24V of Smart Jig Voltage

13.2V or 18V Power Board : Change the switch to 24V of Smart Jig Voltage.

15Y OLED (EG96,EF95,EG92,EG93,EG94) Power Board Diagnostic method (1)

Check power board voltage

* Switch the product SW in JIG to LCD.
LCD MODEL Check the power voltage and switch (24V) to the correct voltage.
Fix the LCD MODEL switch to 24V.(Smart JIG)

Disconnect the Main Board 24Pin Power Cable connector.

Connect the 24Pin Power Cable connector to the Muitl Gender JIG 24Pin connector

Power Board Diagnostic method (2)

When the OK LED (24V,12V) turns on, Power Board is normal.
When the NG LED turns on, the Power Board can be judged as defective.

16Y OLED (B6) Power Board Diagnostic method

Connect the 24Pin Power Cable connector to the Multi gender JIG 24Pin connector.

Switch the LCD MODEL S/W to 24V by checking the power voltage.
Fix the LCD MODEL switch to 24V.(Smart JIG)

When the OK LED (24V,12V) turns on, Power Board is normal.
When the NG LED turns on, the Power Board can be judged as defective.

16Y OLED (C6) Power Board Diagnostic method

Check power board voltage.
Smart JIG: Fix the LCD MODEL switch to 24V.(Smart JIG)

Disconnect the Main Board 24Pin Power Cable connector.

Connect the 24Pin Power Cable connector to the Muitl Gender JIG 24Pin connector

When the OK LED (24V,12V) turns on, Power Board is normal.

16Y OLED (E6) Power Board Diagnostic method

Check power board voltage.
Fix the LCD MODEL switch to 24V. (Smart JIG)

Disconnect the Main Board 24Pin Power Cable connector.

Connect the 24Pin Power Cable connector to the Muitl Gender JIG 24Pin connector

When the OK LED (24V,12V) turns on, Power Board is normal.
When the NG LED turns on, the Power Board can be judged as defective.

16Y OLED (G6) Power Board Diagnostic method

Check power board voltage.
Fix the LCD MODEL switch to 24V.(Smart JIG)

Disconnect the Main Board 24Pin Power Cable connector.

Connect the 24Pin Power Cable connector to the Muitl Gender JIG 24Pin connector

When the OK LED (24V,12V) turns on, Power Board is normal.

When the NG LED turns on, the Power Board can be judged as defective.

17Y OLED (B7-C7-E7-G7) Power Board Diagnostic method

Disconnect the Main Board 28Pin Power Cable connector.

Connect the 28Pin Power Cable connector to the Muitl Gender JIG 28Pin connector.

Switch the LCD MODEL SW to 20V by checking the power voltage.
Fix the LCD MODEL switch to 20V.(Smart JIG)

When the OK LED (24V,12V) turns on, Power Board is normal.
When the NG LED turns on, the Power Board can be judged as defective

17Y OLED (W7) Power Board Diagnostic method

Disconnect the Main Board 24Pin Power Cable connector.

Connect the 24Pin Power Cable connector to the Muitl Gender JIG 28Pin connector

Switch the LCD MODEL SW to 20V by checking the power voltage.
Fix the LCD MODEL switch to 20V.(Smart JIG)

When the OK LED (24V,12V) turns on, Power Board is normal.
When the NG LED turns on, the Power Board can be judged as defective.


Saturday, August 13, 2022

Roku LCD TV LG 32LK610BPUA, LG 32LK610BBUA – Power errors, audio error, function error, how to use the service remote control

 SMPS errors, Function errors, Usage of Service remote control for LG32LK610 LCD TVS

Power error-No power:  Check front Power Indicator

Power error-No power: Check power input voltage and ST-BY 7.8V

Power Check Sequence
1. AC input Check : SK100 (100~240Vac)
2. PWR-ON Check : P201
- SET On : above 3V
- SET St-by : 0V
3. 13.2V DC Check : P201
- SET On : 13.2V
- SET St-by : 7.8V
4. MS Level Check : MS

5. LED voltage Check : P801, Pin 1, 7
Picture Condition : VIVID (Back light 100) all condition meets, Power Board OK.

Power error-Off when on, off whiling viewing

POWER OFF MODE checking method

Entry method
1. Press the IN-START button of the remote
control for adjustment
2. Check the entry into adjustment item 3

Audio error-No audio or Normal video

Checking method in menu when there is no audio

Checking method
1. Press the Setting button on the remote control
2. Select the Sound function of the Menu
3. Select the Sound Out
4. Select TV Speaker

Audio error-No audio or Normal video

Voltage and speaker checking method
when there is no audio

Checking order when there is no audio
1.Check the contact condition of or 13.2V connector of Main Board
2. Measure the 13.2V input voltage supplied from Power Board
(If there is no input voltage, remove and check the connector)
3.Connect the tester RX1 to the speaker terminal and if you hear the Chik Chik sound when you touch the
GND and output terminal, the speaker is normal.

Function error:  Remote control operation checking method

Checking order to check remote control

Checking order
1.Check IR cable condition between IR & Main board.( Check picture number
and )
2.Check the standby 3.5V on the terminal 16 pin (
)
3.AS checking the Pre-Amp(IR LED light) , the power is in ON condition, an Analog Tester needle should move slowly, otherwise, it’s defective.

Function error: Remote control operation checking method: Checking order to check motion remote/wifi

Checking order
1.Check BT/Wifi cable condition between BT/Wifi assy & Main board.
2.Check the 3.5V on the terminal 22

Function error:  How to use the Service remote control

Function error:  How to use the Service remote control




Friday, August 12, 2022

LG 32LK610BPUA, LG 32LK610BBUA – Roku LCD TV - checking image error, symptoms of main module faults with pictures

 

Video error-Video error, video lag-stop

Checking method
1. Check the signal strength or check whether the screen is normal when the external device is connected.
2. After measuring each voltage from power supply, finally replace the MAIN BOARD.


Video error –Vertical-Horizontal bar, residual image, light spot

As the part connecting to the external input, check the screen condition by signal


Video error- Color error

Check Link Cable (LVDS) reconnection condition.  Check the contact condition of the Link Cable, especially dust or mis-insertion.


Examples of Symptoms (Image error).  Check for poor cable contact

Color smear > Poor broken pin of FFC cable. Picture-1

R Color Excessive > Color is Excessive due to FFC Cable Contact.  Picture-2

Screen darkness > screen is dark due to poor contact due to disconnection of the FFC cable pin.  Picture-3

G Color Excessive > G color transient due to poor FFC cable connection.  Picture-4


Color spread > LVDS cable connection problem.  Picture-5, 6, 7


Screen stop > Due to foreign substance withi nLVDS cable PIN.  Picture-8

Examples of Symptoms (Main)

Screen noise > Bit noise from horizontal screen.  Picture-9

Screen noise > Broken screen due to Main IC problem.  Picture-10

Dark picture > Dark left-side screen.  Picture-11

Broken picture > Top/bottom screen part Picture problem due to tuner Inner side quality problem.  Picture-12


Broken screen > Broken screen in a horizontal manner.  Picture-13

Screen spread > Screen corner appears blurry.  Picture-14

Color Spread > Color spread on the screen.  Picture-15

Blurry Screen > Blurry picture on the screen.  Picture – 16


Broken picture > No problem at the initial stage, G-color spread after 10 minutes.  Picture 17

Right-side Screen problem > Right-side screen problem.  Picture 18

LG logo Screen problem > Screen picture spread problem.  Picture 19

Right-side picture problem > No problem at the initial stage.  During Heat run, right-side picture problem.  Picture 20


Examples of Symptoms (Module)

Isometric Horizontal Bar > Isometric horizontal bars occur throughout the screen. Picture 21

Internal matter > BLU internal foreign matter inflow.  Picture 22

Image broken > 6 block image broken.  Picture 23

Image broken > Screen sync signal broken.  Picture 24


Image broken > Internal damage and image breakage due to external impact.  Picture 25

Bend on the screen > Bending due to lateral external impact and internal bending of BLU.  Picture 26

Vertical smear > Vertical spreading on cube screen in no signal.  Picture 27

Over color > Screen contour part brightly Over color.  Picture 28


Vertical bar > Center Vertical Bar.  Picture 29

Screen darkness > Center of the screen 1 block dark.  Picture 30

Vertical bar > Center Vertical Bar.  Picture 31

Darkness at the bottom of the screen > MODULE internal BLU breakage.  Picture 32


LVDS cable symptoms and SMPS (power board) faults will follow by next post