REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

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Wednesday, 18 March 2020

TCL 32S6500S HOW TO ENTER THE SERVICE MODE, HOW TO UPGRADE THE FIRMWARE, GENERAL RESET, CHASSIS ADJUSTMENTS PROCEDURE

 

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