REPAIRING AND NOT THROWING AWAY

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!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Saturday 2 February 2019

THOMSON AND TCL LED TV HOW TO ENTER SERVICE MODE, SOFTWARE UPDATE, POWER AND BACKLIGHT INVERTER CIRCUIT DIAGRAM

Thomson and TCL LED TV How to enter service mode, software update, Power and backlight inverter circuit diagram


How to enter service mode, software update, Power and backlight inverter circuit diagram Thomson and TCL LED TV  Echom 19AE, Echom 22AE and Echom 23AE [19, 22 and 23 inch LED TVs)
Thomson T19E27U, Thomson TCL MT27S-AP
TCL MT27S-AP, TCL T19, TCLT22, TCL T24E27, TCL T29V
Factory Menu covers all indispensable functions during manufacture such as White Balance Adjustment, Shop Init, NVM  reset,DesignMenu1,DesignMenu2 e.g., while the items under DesignMenu1 and DesignMenu2 is exclusively used by R&D engineer, anyone else shouldn’t change the settings in the menu. When you wish to learn the product information like project ID, model name, you can access to
DesignMenu1. In addition, in Hotel Menu, we also provide a great deal of useful functions for specific applications in hotel. Factory Menu Accessing
a. In the first place, press Menu button of remote control, then select Contrast item of Picture submenu. 
Finally, press 9, 7, 3, 5 consecutively.
b. When the FAC HOTKEY item of Factory Menus enabled (ON), press Return button of remote control. HOTEL MENU Accessing
a. Hotel Menu(enable)item is enabled(on)
b. press Menu button of remote control, then select Contrast item of Picture submenu. Finally, press 9, 7, 1, 5 consecutively. The steps of debugging Device
Color Analyzer CA-210. 
Video Pattern Generator Chroma2329. 
Color TV Pattern Generator PM5418, VGA cable, AV cable(RCA),YPBPR(RCA) cable.

Chroma2329 Fluke5418 CA-210
Steps of debugging [Troubleshooting]

According to the requirement of order take the below steps to finish the appropriate settings.
A enter the Factory Menu, enable HOTKEY
B Check the version of software, release date displayed at the bottom of Factory Menu. If the information is correct, you can ignore step C and D.
C Enter Factory Menu, choose DESIGNMENU1->PROJECT ID, choose corresponding Project ID number of the product.
D Return to DesignMenu1, check the Product model.
E Choose Factory Menu-> NVM RESET and press and wait until prompt OK appears.
F Restart the set
G According to the requirement of order, set the items of Hotel Menu etc.
H After aging under normal temperature, adjust white balance.
I Choose Factory Menu > SHOP INIT and press button of remote control to initialize the set.

Note: after step I (execute SHOP INIT), Hotel Menu will be disabled by default.
Therefore, if order requires hotel function, it is necessary to enable hotel function by set Factory Menu > DesignMenu2 >HOTEL MENU ENABLE to ON
White Balance adjustment (Manual)

Before adjustment, you must ensure Color Analyzer has been calibrated. Only AV1, YPBPR, VGA , HDMI 1 need to be adjusted. It is necessary to adjustment HDMI 1 first.
Signal and generator
The pattern of the signal should be used are White (Chroma2329 pattern113) and Grey (pattern 114).The format of signal are respectively 720p for HDMI1 (Chroma2329 Timing 69), NTSC for AV1 (Chroma2329 Timing 37),1024×768@60Hz
Steps of adjustment
1) enter the factory menu->WB, select source HDMI 1 and COLORTEMP normal.
2) input white signal in 720p format
3) change R Gain and B Gain to make sure the value of color coordination equal to (x, y)
In addition to select COLORTEMP COOL/WARM, the adjustment method of COOL and WARM color temperature is same with that of NORMAL.
Chip list of software programming before SMT
Following chip must be programmed before SMT by ALL-11 or other tools.
1 U401 Flash  W25Q32 -13-W25Q32-BVB  Main software;HDMI KEY;EDID SO-8

Note
1) The software for U401 can be program using ISP tool.
2) Every set has its unique HDCP key which is purchased from suppliers or HDCP certification authority. Check HDCP function in the process of production.
3) Once in a while, the software of main board may be upgraded. Please pay attention to use the latest software before production.
SMPS and BackLight inverter schematic
Software upgrade through USB disk
1) Please ensure the software you are using has a correct file name TCL_MT27_UPDATE.bin, then copy it to the root directory of a USB disk.
2) Insert the USB disk to the USB socket of the set for which you are going to upgrade program.
3) Enter the Factory Menu (you can choose either a or b way below)
a. In the first place, press Menu button of remote control, then select Contrast item of Picture submenu. Finally, press 9, 7, 3, 5 consecutively.
b. When the Factory hotkey item of Factory Menu is enabled (ON), press Return button of remote control.
4) Select USB UPG item of DesignMenu2 submenu, press buttonof remote control, a pop menu will appear prompting whether start upgrade or not. Press Yes to start upgrade, press No to cannel. 
Wait patiently until the set restart automatically after upgrade.
Do not cut off the power supply during the process.
Check software version, release date and Project ID
After upgrading, sometimes you may not certain whether the new software has been successfully updated or not. In this case, you can check the software version and release date in Factory Menu to make sure the success of upgrading. In addition, for the convenience of software management, many models of same chassis may share a same software, but are allocated with different Project ID.
In another words, every model has its unique Project ID. 
Obviously, Both software version and Project ID are highly critical to ensure the set work properly. Therefore, after upgrading software, it is recommended  you to check these information by following method.
1) Enter the Factory Menu (you can choose either a or b way below)
a In the first place, press Menu button of remote control, then select Contrast item of Picture sub-menu. Finally, press 9, 7 3, 5 consecutively.
b. When the HOTKEY item of Factory Menu is enabled (ON), press Return button of remote control.
2 Check the version of software, release date displayed at the bottom of Factory Menu. If the information is correct, you can ignore step 3.
3 Choose DesignMenu1->PROJECTID, choose corresponding Project ID number of the product (Please refer to the description in BOM about Project ID number).
4 Choose Factory Menu and press OK button of the remote. Next, select NVM RESET and press and wait until prompt OK appears.
5 Choose SHOP INIT and press button of remote control to initialize the set.
Note: after step I (execute SHOP INIT), Hotel Menu will be disabled by default
Therefore, if order requires hotel function, it is necessary to enable hotel function by set Factory Menu > DesignMenu2 > HOTEL Menu enable to ON.
6) Restart the set.

If the resolution of the panel of your set is 1366×768(HD panel), you can press 062598,Menu, and Number(HD panel projectID) of remote control in series after turning on.
If the resolution of the panel of your set is 1920×1080(FHD panel), you can press 062598,Menu, and Number(FHD panel projectID) in series after turning on.
If you can see the picture at this time, please recheck the project ID again. If the project ID is still wrong, correct it reference to above description.
Posted By: FRANK at 06:44
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