Tuesday, March 22, 2022

Sony KDL39R475A - How to enter the service mode, replacing the main board, panel selection, serial number edit and more

 

Applicable to - KDL-39R475A - KDL 42R474A -  KDL 42R475A - KDL 46R475A (RB1TK Chassis)

KDL-39R475A  RM-YD093  BRAZIL
KDL-42R474A  RM-YD093  BRAZIL
KDL-42R475A  RM-YD093  BRAZIL
KDL-46R475A  RM-YD093  BRAZIL

REPLACING THE MAIN BOARD

The Main Board used in these models is available for repair.

Steps for repair

How to access the service mode.

8. Access Service Mode by pressing the following buttons within 1 second of each other:

9. Press the DOWN until Panel Selection is selected.

10. Press LEFT or RIGHT to select the correct Panel Code for the TV model.
(Use the table below for reference). 

CAUTION: Select ONLY the correct Panel Code.

11. Locate the Serial Number for the TV on the side of the Rear Cover.

12. Press DOWN until SERIAL NUMBER EDIT is selected.

13. Press RIGHT to be able to select the first digit.

14. Press UP or DOWN to select numbers and then RIGHT to move to the next digit until Serial Number is complete.

When the complete serial number displays, press (+)

On the confirmation screen, press LEFT to select YES and then (+)

17. Press until MODEL NAME EDIT is selected.

18. Press RIGHT to be able to select the first character.

19. Press UP or DN to select characters and then RIGHT to move to the next space until Model Name is complete. NOTE: Make sure to include dash in Model Name.

CAUTION: The Model Name can only be selected once. Be sure to verify the information is correct before saving the changes.

20. When the complete Model Name displays, press (+) .
21. On the confirmation screen, press LEFT to select YES and then (
+)

22. Press the POWER to EXIT the SERVICE MODE.


Xoceco LC42 – HC63 E LCD TV How to enter the factory mode, software upgrading, adjustments, power board and audio amplifier schematic

 

Method for entering factory menu:

Press “INPUT”, “2”, “5”, ”8” and “0” in turn to enter factory menu; press “CH+” or “CH-” to select adjustment items and press “VOL+” or “VOL-” to adjust value items, press “MENU” repeatedly to exit. Set AGING MODE of the factory menu to ON,
AGING MODE icon will display on the top left of the screen, now you can press “NR” button to enter the factory menu.

Method for software upgrading:

Prepare the software upgrade program and set the software upgrade tool correctly, press CONNECT then power on, the program will upgrade automatically.
After system prompts upgrade success, press EXIT to exit. When REALTEK appear, it means the upgrade is complete, then restart the unit.
Write HDCP KEY
Turn on the PC and set the software tool correctly, click HDCP then turn on the unit, the program will be written automatically. It needs about 5s and after finish, system will prompt upgrade success.
Note: HDCP button can only be pressed one time for one unit.
The power should be off and 5V-STB disappear for 5s then start writing.
Initialization
Enter factory menu, press “CH+” or “CH-” to select adjustment items and press “VOL+” or “VOL-” to enter the sub menu or adjust value items, adjustment items are shown in table

White balance adjustment
white balance adjustment of HDMI
a. Input VG-848 signal to HDMI port: TIMING854 (800x600/60Hz) and 16-level gray scale signal of PAT920. Use color analyzer CA210 to adjust white balance. BBY model should be adjusted from BBY channel first. The unit must be working for above 30 mins to be in a stabler state for adjustment.
b. Enter factory submenu of TEMP ADJUST, Select NORMAL color temperature (9300k), fixed value of G OFF, adjust R OFF and B OFF, let the color coordinate of the third level be (285±8, 293±12) and the brightness be about 3~5nit. Fixed value of G GAIN, adjust R GAIN and B GAIN, let the color coordinate of the converse third level be (285+/-4, 293+/-6). Adjustment R OFF, B OFF, R GAIN and B GAIN repeatedly until the value of the two levels gray-scale are about (285, 293), then set ALL COLOR to ON.

For BBY model, select COOL color temperature (12000k), fixed value of G OFF, adjust R OFF and B OFF, let the color coordinate of the third level be (272 À5, 278 À5) and the brightness be about 3~5nit. Fixed value of G GAIN, adjust R GAIN and B GAIN, let the color coordinate of the converse third level be (272+/-2, 278+/-2). Adjustment R OFF, B OFF, R GAIN and B GAIN repeatedly until the value of the two levels gray-scale are about (272, 278), then set ALL COLOR to ON.
VGA/YPBPR/AV white balance check and correction
a. Input VG-848 signal of VGA to VGA terminal: TIMING854(800x600/60Hz) (PATTERN:CROSS) and auto adjust to full screen, then input PAT948 black/white signal, enter factory menu ADC ADJ, select AUTO COLOR and the system will correct automatically, after finish, it will return to AUTO COLOR menu. Please check the picture and data, if they are abnormal, then the correction is failure and needs to correct again. (abnormal symptom: certain of the data are greatly different from other data or exceed or near 1000).
Input PAT920(16 gray levels), check if the white balance is normal, if not, enter TEMP ADJUST menu and set ALL COLOR to OFF and fine adjust according the method of 3.5.1b)
b.
YPBPR check and correction
SD correction: input VG-848 signal of YPBPR to YPBPR terminal and input TIMING968 (480i) PAT968 color bar (see fig2), (color from left to right are white- yellow- cyan- green- purplered- blue- black), enter ADC ADJ submenu, select AUTO COLOR the system will correct automatically, after finish, it will return to AUTO COLOR menu. Please check the picture and data, if they are abnormal, then the correction is failure and needs to correct again.
HD correction: input VG-848 signal of YPBPR to YPBPR terminal and input TIMING976 (720P/60Hz) PAT968 color bar (color from left to right are white- yellow- cyan- green- purple- redblue- black), enter ADC ADJ submenu, select AUTO COLOR the system will correct automatically,
after finish, it will return to AUTO COLOR menu. Please check the picture and data, if they are abnormal, then the correction is failure and needs to correct again.

Performance check
TV function
Enter tuning menu → auto search, connect RF-TV terminal with central signal source and check if the picture is normal, if there are channels not found. Check CCD and V-CHIP (for America).
4.2 AV/S, YPbPr jacks Input AV/S, YPbPr/YCbCr HD signal, check if it is normal.
4.3 VGA jack
Connect VGA jack, input 640 x 480/60Hz standard signal and check if the display is normal.
4.4 HDMI jack
Connect HDMI jack, input 640 x 480/60Hz standard signal and check if the display is normal.
Check if HDCP is normal?
4.5 Check sound channel
Check the speaker and earphone output of each channel.
4.7 Other function check
Check the ON/OFF timer, sleep timer, picture/sound mode, OSD, freeze/mute, USB(option),
MAG.G feature, etc.
4.8 Presetting before ex-factory
Table2 ex-factory setting

Input PAT920(16 gray levels), check if the white balance is normal, if not, enter TEMP ADJUST menu and set ALL COLOR to OFF and fine adjust according the method of 3.5.1b)
c. Input AV signal (PM5518, 8 gray levels, PAL for China and NTSC for America) to VIDEO terminal, check if the white balance is normal, if not, set ALL COLOR to OFF and fine adjust according the method of 3.5.1b)

Software instruction
Table3 software instruction

No.

Code No.

Type

Function

Written
before
paste

Method

Remarks

NS3

5272540001

PM25VF040

Main CPU
program

Yes

NB1

5272402002

24C02N-10SI27

VGA EDID

Ye

Written with instrument like ALL11
Item Setting Item Setting Item Setting

PICTURE MODE

NAUTRAL

SOUND SYSTEM

DK (China),
or others
(depending
the local
area)

SOUND MODE

NEWS

NR

WEAK

ZOOM

FULL

 

LANGUAGE

English

 

TRANSPARENCY

2

VGA/HDMI COLOR
TEMP

STANDARD

OSD TIME

10

ANTENNA

CATV

4.6 Check AV channel
Check if AV OUT is normal?
Enter factory menu and select RESET, then the unit will be preset before ex-factory. The process must be executed after the whole adjustment in factory.
Setting as follow without specified requirement.

Power supply (SMPS) schematic


Audio amplifier schematic



Friday, March 11, 2022

715G4307 POWER SUPPLY BOARD SCHEMATIC

 

715G4307 Circuit diagram







ILO 26HD L5991, ILO 26HD L 6561D – NCP 1203D6 SMPS and LYP 03008A0 KPL OA1 SMPS (power supply board schematic)

 

LYP 03008A0 KPL OA1 SMPS (power supply board schematic)

ILO 26HD L5991, ILO 26HD L 6561D – NCP 1203D6 SMPS (Power Supply board schematic): Used ICs – LYP0300L6561D, NCP1203D6, L5991, AP4310AM-B 


Thursday, March 10, 2022

TCL 32S6500S How to enter the service mode, How to upgrade the firmware, Reset, chassis adjustments

 

Factory Menu & Main Menu, How to Enable Factory hotkey

Follow the below steps to pop-up the Factory menu in case of “Factory hotkey” is disabled:
Enable Factory hotkey method:
Method one:
* Press RCU “MENU” key to display main menu
* Select “Settings
àPictureàAdvanced settingà Contrast”, Scroll down to “Contrast” item
* Press the subsequence RCU keys “
9”, “7”, “3” and “5
* Select “9-Sita P mode”, Press RCU “◄/” key change the values to ON
* Reboot TV
* 'Factory Hotkey' will be ON automatic.
Method two:
* Create a file named 'sita-P' with no suffix, note the capitalization.
* Put the file 'sita-P' into the U disk, delete all PKG and BINC files.
* Put the U disk into the TV.
* Power on TV by AC, at the same time press “power on” key which on the boardfor 10s until the TCL logo show.
* 'Factory Hotkey' will be ON automatic.

If “Factory hotkey” is enabled, just press RCU “Return” key to pop-up again the Factory menu.
The status of “Factory hotkey” can be changed in “Factory menu->Factory hotkey
Press RCU Ok”key to enter the submenu.
Press RCU “Menu” key to go back to the root menu.
Press RCU “◄/” key to change the values.
Press RCU “OK” key run the function.
Press RCU “Exit” key exit the Factory menu.

Factory Captions Description
While “Factory hotkey” is enabled, there’re some toggled display information (~2s) relative to SW, ProjectID, CI+, Network ID to facilitate 100% quick screening without accessing to whatever else menu:

MV (Main SW Version)
ID (Project ID)
Panel ID
MEMC (FRC SW Version)
MID(Internet info for factory)
P (Production - Factory mode flag) S (Factory UART Parser mode flag) W (Warm-Up mode flag)

How to enter Main Menu
* Press RCU “MENU” key to display main menu
* Select “Settings>
Picture>Advanced setting> Contrast”, Scroll down to “Contrast” item
* Press the subsequence RCU keys “
1”, “9”, “5” and “0
* Then the Main Menu will be displayed on the screen.

Warm-up Test
Following TCL standard and practices, it’s required minimum 15min of Warm-Up that can be considered as Burn-In.
Additional Aging for White Balance alignment is no more necessary due to consistent Picture Performance with Cloning usage.
First you need to enable Factory Key. After that selecting“ Factory menu >
WARM UP”, pressing RCU “OK ►” key and then leaving Factory menu by pressing “Exit” key. To release/disable Burn-in mode, it’s just required to press “Menu” button from local keyboard. Other faster methods via UART/IR commands are available on enclosed SIACP
requirements (rev. v8.31)

White Balance & Automatic Gamma correction
For the white balance & automatic gamma correction, we only need do one of them based on the value of
Align-mode in PDM system or the method gave by AOE or R&D.
The detail instruction of Align-mode is as below table:

Align mode                       WB alignment of Auto gamma correction              0 > WG alignment

                                                                                                                                  1 > Gamma correction

White Balance alignment (Golden sample)
As some color coordinates discrepancies can be noticed from panel batches to others, it may necessary to perform slight touch-up.
For Color temperature adjustment, switch TV on leading HDMI input where should be connected suitable generator providing following format 1280x720p@60Hz test pattern. A 32 steps grey scale is recommended to assess relevant colorimetry tracking and low or high light saturation points.

Ensure that TV’s picture enhance is off.
Ensure that TV is in Factory mode to access to” White Balance” adjustment submenu.
WB Normal is the first mode which is adjusted in HDMI source
the next are HDMI warm and cool mode.
Warm and Cool Tone are relatives to Normal mode. WB adjust need to fix default G Gain .Offset registers needn’t to be adjusted.
“Gain” registers set need to be adjusted at 70IRE.
Note: The operation must enable factory “P” mode
Auutomatic Gamma correction
Gamma correction, or often simply gamma, is the name of a nonlinear operation used to encode and decode luminance or tristimulus values in video or still image systems.
You need adjust 4+3 gamma for different samples based on the color coordinates and target gamma offered by PQ engineer. So each sample can get almost the same effect as PQ golden sample. The 4+3 gamma include 4 gamma based on 4 different color temperature (cool, normal, warm1, warm2) and 3 gamma related to SDR to HDR (cool, normal, warm).
For the automatic gamma correction, we can do as below, but please refer to “Gamma correction specification (v1.00)”for detail.
* Initialize the picture, turn off dynamic backlight, dynamic contrast, and set picture mode as computer desktop mode;
* Get the color coordinates (x, y, Y) and target gamma in the PDM of the target model;
* Open the factory menu of TV, Open the tools SIACP and main.vi on the PC, connect the equipment correctly (CA310, serial port, PC, TV);
* Fill the color coordinates (x, y, Y) target gamma, error range and time-delay in the main.vi tool that made by AOE, and save it;

Put the probe on the middle of the panel, and then run main.vi. The 4+3 gamma will be created and calibrated automatically and saved in the TV.
As 4+3 gamma is a new and good way for PQ especially for HDR, we need adjust it in the factory now. And if we do the 4+3 gamma, there is no need to adjust the white balance. But we need do the initial setup of white balance.
How to do initial setup of white balance”
Note: The operation must enable factory “P” mode
Targets and Tolerances for all inputs
(According to company uniform LED color temperature standard of panel)
The measured and adjustable parameters should be mainly “x”, “y” coordinates.
The White Balance alignment and Automatic Gamma correction should be performed using a well calibrated and contact less analyzer (ex: Minolta CA210 or CA310). The analyzer may not touch the screen surface, and measurement must be performed in a dark environment keeping the probe(s) at 90+/-2° from the panel centre.
The results should fulfil specification for each TV set offered by R&D and below tolerances:

For the 4+3 gamma the target value is 2.2 and error range is ± 0.05.
Note
:We will add more project ID later.
Note:
If we can do both of White Balance & Automatic Gamma correction. For some special models, please notice the information provided by Huizhou factory or PJM to choose which way to make it.

Cloning
Once a TV is well aligned and prepared (channels maps, volume, picture presets, …) , user can prepare golden clone image that can be copied on demand to all further TV production lot of same TV. To access cloning function, you can select “Factory menu USB Clone >All -Chanel List - EEPROM - Users Setting” , Scroll down to “TV to USB” or “USB to TV” and press RCU “OK ►” key to process. 4 BIN images can created, overwritten or read on USB stick (pen drive) depending on chosen template like following: “database-applications-database-***.db” . These files need to be used strictly with MT58SoC platform as depending on SW structure.
Other faster access methods via UART/IR command share available on enclosed SIACP requirements (rev. v8.31).
Note: This function is only useful on factory sita P mode. And in hotel mode, we can use it too, but only copy the information related to the hotel.
High Pot. and Insulating Resistance Tests
At the end of the process, a “High Voltage” and an “Insulating Resistance” tests are required to fulfil Safety
Electrical requirements (CEI 65065).
High Voltage Withstanding requirements --
Insulating Resistance requirements
“Voltage” > 3500VAC - “Voltage” > 500VDC
“Max Leakage Current” > 10 mA - “Threshold Min” >4M Ω
“Test Time” >3 sec - “Test Time” >2 sec

At final process stage, it’s necessary to perform “Reset shop” before any packing to leave Factory mode and restore User default presets.
First you need to enable Factory Key. After that selecting “Factory menu
àReset Shop”, then pressing RCU “OK ►” key. Other faster methods via UART-IR commands are available on enclosed SIACP requirements (rev. v8.31).
Note
:A password might be required in case of Parental Control function is locked, use default “1234” password or “0423” super password to clean-up existing ones if forgotten.

“How to upgrade main SW using tool”
Upgrade RT2841 main SW by using RTK tool
Download boot bin “dvrboot.rescue.exe.bin.bin” &main software “Update.img” from the software route.
Connect UART interface to suitable manufacturing TV input connector, upgrade boot bin first to blank IC.
1) Turn off your TV, and then connect the Serial Interface to USB debug port.
2) Open the rtice software, select the Burn page, click the icon, and enter the boot burn page as shown below

3) Click the settings icon, open the settings page, and configure it as shown below

Connect Type select RS232;
Comm port selects the corresponding serial port;
Set-Status type option ROM Code;
IC Type Selection Macarthur5;
Then click ok.
4) Configure Burn parameters and select bootcode load path, as shown below.

5) Click the Start button to enter the boot state and the state will change to the connect state as shown above.

6) Then power on the TV. After the connection is successful, the TV enters the upgrade state and waits for the upgrade to complete. After the upgrade is complete, the following figure shows the bootcode successfully burned.

Then Upgrade Main SW , Copy Main SW “Update.img” into USB stick (pen drive) root path
> Insert USB to TV USB port, long press the “MENU-STB” button of local keyboard , and then Power on TV by AC, The light of IR will flicker, it means TV is updating SW.
> After finish update SW, TV will reboot automatically and please remove the USB.

 “How to upgrade SW using USB”
Upgrade RT2841 main SW
* Copy the “Update.img” into USB stick (pen drive) root path.
* Please delete other xxx.img files from USB stick.
* Plug USB stick to the TV.
* Power on TV by AC, at the same time press “power on” key for 10s, TV will update SW automatically.
* When reflashing is successful, TV should restart automatically (about 4min).
Note
:If “upgrade” was performed, a “Welcome Setup” menu should be displayed, otherwise new SW version should be displayed into relevant Factory mode caption info or on bottom of “Factory menu“
If the P mode is reflashing after upgrade and can not be closed, go to “Factory menu” and select ‘Sita P mode’ to ON, restart TV. Then go to “Factory menu” again and select ‘Factory hotkey’ to OFF.

“How to upgrade SW using USB and RCU”
 “How to upgrade FLASH SW by OAD”
not support now
 “How to change Project ID with RCU”

Enable Factory Key (See “section 2.0-Product Assembly”)
* Process following subsequence IR codes to change project ID:
(xxx: Project ID, ex: 001)

If it works, the TV will restart automatically.

 “How to upgrade CI Key using USB”
* Enable Factory Key
* Create the folder named “CIKEY”, change the CI key to “CIKEY-xxx.bin” (xxx is the number), put CI key into the folder.
* Plus the USB into the TV.
* Go to “Main menu
à Service menuà USB Update >CI Key Upgrade “, click the right button.
* If the toast show CI Update OK, it means burn the key success.
After burning, the CI key will movie to the folder CIKEY>BACKUP.
Note: The operation must enable factory “P” mode
Note
: If unfortunately the process failed, you may need to download new CI key and repeat operation again.

“How to upgrade Widevine Key using USB”
* Enable Factory Key
* Create the folder named “WIDEVINEKEY”, change the Widevine key to “WIDEVINE-xxx.bin”(xxx is the number), put Widevine key into the folder.
* Plus the USB into the TV.
* Go to “Main menu
à > Service menu USB Update > Widevine Key Upgrade “, click the right button.
* If the toast show Widevine Update OK, it means burn the key success.
* After burning, the Widevine key will movie to the folder WIDEVINEKEY-BACKUP.
Note: The operation must enable factory “P” mode

“How to upgrade HDCP key using USB”
HDCP
* Create the folder named “HDCP”, change the HDCP key to “HDCP-xxx.bin”(xxx is the number), put HDCP key into the folder.
* Enable Factory Key
* Plus the USB into the TV.
* Go to “Main menu
 > Service menu >  USB Update >[HDCP] Upgrade“, click the right button.
* If the toast shows HDCP Update OK, it means burn the key success.

After burning, the HDCP key will movie to the folder HDCP-BACKUP

“How to upgrade MAC Address using USB”
* Create the folder named “MAC”, change the MAC key to “MAC-xxx.bin”(xxx is the number), put MAC key into the folder.
* Enable Factory Key
* Plus the USB into the TV.
* Go to “Main menu>
Service menu> USB Update >  MAC Upgrade“, click the right button.
* If the toast show MAC Update OK, it means burn the key success.
* After burning, the MAC key will movie to the folder MAC-BACKUP.
Note
: There is no this function which is only displaying.

 “Network Connection Setup”
Note
:You can set up your TV so that it can access the Internet through your local area network (LAN) using a wired or wireless connection.
Wired Network Connection
You can connect your TV to your LAN using cable in three ways:
1) Plug your TV to your LAN by connecting the LAN port on your TV to an external modem using a Cat5 cable.
2) Plug your TV to your LAN by connecting the LAN port on your TV to an IP Sharer which is connected to an external modem. Use Cat5 cable for the connection
3) Depending on how your network is configured, you may be able to plug your TV to your LAN by connecting the LAN port on your TV directly to a network wall outlet using a Cat5 cable (Note that the wall outlet is attached to a modem or router elsewhere in your house)
4) Select “Menu >Network Settings>
Ethernet” to check if the network has connected. If not then select “IP settings” to connect to network.

Wireless Network Connection
To connect your TV to your wireless network, you need a wireless router or modem and a Wireless LAN Adapter.
* Select “Menu > Network Settings > Wi-Fi-On”, then it will appear the valid wireless networks near your area.
* Select available access point and press “OK ►” to connect the TV to it.
Note
: If you select a protected access point, you will have to enter the corresponding password. Press “OKon the remote control to display virtual keyboard to enable you to enter the password.

Network Setup
* Connect your TV and the available network with the network cable first.

Press on the remote control and select “Network Settings > Ethernet” to check if the network has connected.

If connected, the Internet connection will display Connected. If not, If not it will display “Not Connected” and you can try to enter your IP address manually to connect the network follow below steps
* Select “Advanced options
>IP Settings>Static” by pressing “OK ►” key
* Enter the “IP address”, “Gateway”, “Network prefix length”, “DNS1”and “DNS2”values. Use remote control digital keys to enter number sand “◄/►” key to move from one to other field location
* After setting all required inputs and save successful, to check the Internet connectivity again
* Select
 then press “OK ►” key to display current connection details, such as Internet connection status, IP address, MAC address etc

“How to do initial setup of white balance”
Firstly, you need to enable Factory Key:
* Press RCU “MENU” key to display main menu
* Select “Settings
Picture Advanced setting Contrast”, Scroll down to “Contrast” item
* Press the subsequence RCU keys “
9”, “7”, “3” and “5
* Select “9-Sita P mode”, Press RCU “◄/►” key change the values to ON
* Reboot TV
* 'Factory Hotkey' will be ON automatic.
Secondly, press RCU Option, Select Picture
Advanced setting Contrast Press RCU “1950” enterdesign main menu Reset all