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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Friday, 8 March 2019

SAMSUNG LA32B650T1R - LA40B650T1R - LA46B650T1R - LA55B650T1R SERVICE MODE SOFTWARE UPDATE AND ADJUSTMENTS

SAMSUNG LA32B650T1R - LA40B650T1R - LA46B650T1R - LA55B650T1R SERVICE MODE SOFTWARE UPDATE AND ADJUSTMENTS

SAMSUNG LA32B650T1R - LA40B650T1R - LA46B650T1R - LA55B650T1R 

SERVICE MODE SOFTWARE UPDATE AND ADJUSTMENTS 

Remove the screws of rear-cover.

Factory Mode Adjustments
Entering Factory Mode
To enter ‘Service Mode’ Press the remote -control keys in this sequence :
- If you do not have Factory remote - control
EU/Asia > INFO > MENU > MUTE > POWER ON 
White Balance –Calibration
Service Adjustment - You must perform Calibration in the Lattice Pattern before adjusting the White Balance.
Color Calibration
Adjust spec.
1. Source : HDMI
2. Setting Mode : 1280*720@60Hz
3. Pattern : Pattern #24 (Chess Pattern)
4. Use Equipment : CA210 & Master MSPG925 Generator
Use other equipment only after comparing the result with that of the Master equipment.
Caution
You have to check information and resolution with Model Number. Because each Equipment has different Model Number.
Method of Color Calibration (AV)
1) Apply the PAL Lattice (N0. 2) pattern signal to the AV IN 1 port
2) Press the Source key to switch to “AV1” mode
3) Enter Service mode
4) Select “2 WB Adjust” menu.
5) Select the “Calibration” menu
6) Select the “AV Calibration” menu.
7) In “AV Calibration Failure” status, press the “ > ” key to perform Calibration.
8) When Calibration is complete, it returns to the high-level menu.
9) You can see the change of the “AV Calibration” status from Failure to Success.
Method of Color Calibration (Component)
1) Apply the 720p Lattice (N0. 6) pattern signal to the Component IN 1 port
2) Press the Source key to switch to “Component1” mode
3) Enter Service mode
4) Select “2 WB Adjust” menu.
5) Select the “Calibration” menu
6) Select the “DTV Calibration” menu.
7) In “DTV Calibration Failure” status, press the “ > ” key to perform Calibration.
8) When Calibration is complete, it returns to the high-level menu.
9) You can see the change of the “DTV Calibration” status from Failure to Success.
Method of Color Calibration (PC)
1) Apply the VESA XGA Lattice (N0. 21) pattern signal to the PC IN port
2) Press the Source key to switch to “PC” mode
3) Enter Service mode
4) Select “2 WB Adjust” menu.
5) Select the “Calibration” menu
6) Select the “PC Calibration” menu.
7) In “PC Calibration Failure” status, press the “ > ” key to perform Calibration.
8) When Calibration is complete, it returns to the high-level menu.
9) You can see the change of the “PC Calibration” status from Failure to Success.
Method of Color Calibration (HDMI)
1) Apply the 720p Lattice (N0. 6) pattern signal to the HDMI1/DVI IN port
2) Press the Source key to switch to “HDMI1” mode
3) Enter Service mode
4) Select “2 WB Adjust” menu.
5) Select the “Calibration” menu
6) Select the “HDMI Calibration” menu.
7) In “HDMI Calibration Failure” status, press the “ > ” key to perform Calibration.
8) When Calibration is complete, it returns to the high-level menu.
9) You can see the change of the “HDMI Calibration” status from Failure to Success.
White Ratio (Balance) Adjustment
1.You can adjust the white ratio in factory mode (1:Calibration, 3:White-Balance).
2.Since the adjustment value and the data value vary depending on the input source, you have to adjust these in CVBS, Component 1 and HDMI 1 modes.
3.The optimal values for each mode are configured by default. (Refer to Table 1, 2) It varies with Panel’s size and Specification.
Equipment : CA-210
Pattern: MIK K-7256 #92 “Flat W/B Pattern” as standard
Use other equipment only after comparing the result with that of the Master equipment.
Set Aging time : 60min
Calibration and Manual setting for WB adjustment.
HDMI : Calibration at #24 Chessboard Pattern > Manual adjustment #92 pattern (720p)
COMP: Calibration at #24 Chessboard Pattern > Manual adjustment at #92 pattern (720p)
CVBS: Calibration at #24 Chessboard Pattern > Manual adjustment at #92 pattern (PAL)
If finishing in HDMI mode, adjustment coordinate is almost same in AV/COMP mode.
USB Download Method
Samsung may offer upgrades for TV’s firmware in the future. to receive information about downloading upgrades and using a USB drive.
Upgrades will be possible by connecting a USB drive to the USB port located on located on the back of your TV.
1.Insert a USB drive containing the firmware upgrade into the wiselink port on the side of the TV. (USB drive make folder “T-CHL7DEUC” and this folder download micom program.)
 2. Insert USB drive.
Menu -> Support -> Software Upgrade then press the ENTER button. The message “Scanning for USB. It may take up to 30 seconds.” Please be careful to not disconnect the power or remove the USB drive while upgrade is being applied. The message “Upgrade version XXXX to version XXXX ? The system would be reset after upgrade.” Press the left, right button to select “OK”.\ The TV will shut off after completing the firmware upgrade. Please check the firmware version after the upgrade is complete.
3. How to check Program Version
(1) To enter Factory mode
(2) Check the micom version
T-CHEAEAC-00xxxx
S/W Update method (JIG)
1. Connect Power & Uart cable to board and Turn on the board.
2. Press [shift + ] to enter uboot prompt.
3. Press any key to enter BOOTROM DEBUG SESSION before timeout.
4. Make sure watchdog off.
If watchdog status is on then board will reboot after 15secs
6. Save latest BSP images to /update folder in usb memory.
7. Enter “bbm usb” after connecting usb memory.
9. Enter “u-boot.bin”.
10. Press “x” to return prompt menu.
11. Press [shift + ] to enter uboot prompt again.
13. Press “0”.
14. Enter “bbm usb”.
* If there is not “a” option, Image is old version or not updated. Then try again from No.1.
15. Enter “a”.
16. Enter directory path (if “/update/”is right, just input Enter key).
It takes about 1 minute
17. Press “x”.
18. Enter “bbm show partition”
- Check partition status same as red box on picture below
- If different, go back to first phase. Do it all again
19. Turn off master power of TV and turn on and reset after prompt is shown.
20. Mount USB memory with next command.
# cd
# ls
Java mnt mtd_contents mtd_pers proc
bin mtd_acap mtd_down mtd_ram sbin
dev mtd_appdata mtd_drv mtd_rwarea sys
dtv mtd_boot mtd_epg mtd_swu usr
etc mtd_chmap mtd_exe mtd_tlib
lib mtd_cmmlib mtd_factory mtd_wiselink
#start_usb.sh
# cd dtv
# ls
usb
# cd usb
# ls
log sda
# cd sda
# ls
Autorun.inf T-CHL7DEUC update
T-CHL5DEUC photos.zip.exe
# cd update
# ls
Image exe.img oneboot.bin uboot_env.bin
Image_serial fnw.bin rootfs.img validinfo.txt
appdata.img info.txt serial_temp version_info.txt
boot.img onboot.bin u-boot.bin
21. Write ‘exe.img and appdata.img’.
fsrrestore /dev/bml0/8 exe.img;
fsrrestore /dev/bml0/9 appdata.img;
fsrrestore /dev/bml0/10 exe.img;
fsrrestore /dev/bml0/11 appdata.img;