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!

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Wednesday, 27 March 2019

VESTEL 17MB18 _ TFT-LCD TV _ SOFTWARE UPDATE DESCRIPTION _ INITIALIZING TV

VESTEL 17MB18 _ TFT-LCD TV _ SOFTWARE UPDATE DESCRIPTION _ INITIALIZING TV




SOFTWARE UPDATE

IC PROGRAMMING


    17MB18 has two programmable ICs, UOCIII (IC203) and 29XX800 (IC102, having the PW1306 (IC100) codes).
    29XX800 (IC102) will be programmed before the TV production and will be mounted as programmed. On the other hand, software update can be needed after production so the programming instructions is given.

UOC III PROGRAMMING:  ENTERING ISP MODE
  • Press Power On and turn on the TV.
  • Press Remote Controls (RC) “Menu” (M) and “4””7””2””5” buttons respectively.
  • The following menu will displayed on the screen.
GTV 3.2.1
000 EurAsia TVSub         05.01

00000000 00111100
01000000 01100100
11000101 01100100
00000000 01100100
  • Press RCs “0” ”0” ”2” buttons respectively.(“ISP Mode 0” line will be displayed on the screen.)
  • Press RCs “Volume +” button and set UOC to ISP mode. .(“ISP Mode 1” line will be displayed on the screen.)
LOADING THE CODE
  • Connect the 5 pin cable of the “programming board” to PL203 of the 17MB18 main board.  Connect the programming board to the computer in which “WISP” program is loaded via “Parallel Port”.
  • Run WISP program. As it is seen in figure1 change “Delay time” value to “5” ms.
  • Under “Settings Menu”, set the I2C configurations; press “Confirm” and close this window.
(Note: Once the above settings are done, there is no need to do them again each time loading the UOC code.)
  • Click “Enter ISP Mode” button and then click “Send” button. In the white display area with “ISP status” heading, “ISP mode... Ready” will be displayed. (Unless you do not see this warning, check the cable connections and the settings described above.)
  • WISP MAIN MENU
  • I2C CONFUGURATION



  • Click “Erase Flash” button and then click “Send” button. If erasing is done without any problem, “three green OK” will be displayed on the main menu window. This indicates that the memory inside the IC is erased successfully.
  • Click “Write Flash” button and then click “Browse” button. Select the “gtv.hex” UOC code file by browsing the explorer to the folder where this “gtv.hex” file is stored. Wait for a few seconds until the program reads the code. You will see the blue bar indicating the “reading operation” on the bottom of the Wisp main menu window.
  • Click “Send” button. You will see the blue bar indicating the “Loading Code to UOC IC” on the bottom of the window. When the loading operation is over without any error “three green OK” will be displayed on the window. This indicates the loading operation is performed successfully.
INITIALIZING THE TV
  • Turn off and on the TV. Press RCs “Menu” (M) and “4””7””2””5” buttons respectively.
  • Press RCs “0” ”0” ”1” buttons respectively. (“Init TV 0” will be displayed on the screen)
  • Press RCs “Volume +” and set “Init TV 1” and wait the TV to automatically turn off.
29XX800 PROGRAMMING FOR PW1306

The following instructions are only needed for software upgrades. For the TV production, pre-programmed 29XX800 will be mounted on the board.
  1. Copy flasher.hex and romcode.hex to “X:\XXX\ QTV_TVK2_V_021\Project\PW13XX_QTV” directory.
  2. Connect programmer board 4-pin cable to PL100 on 17MB18.
  3. Connect programmer board serial port cable to PC COM Port1.
  4. Close jumper PL501.
  5. Execute “FlashUpgrader.exe” in “C:\XXX\ QTV_TVK2_V_021\bin\” directory.
  6. Press “Choose” and select romcode.inf from “C:\XXX\ QTV_TVK2_V_021\Project\PW13XX_QTV” directory.
  7. Press “Flash”
  8. Power on the board. Observe the sliding bar on the main menu showing that flasher.hex and then romcode.hex are being downloaded to the IC on 17MB18 main board.
  9. Power off the board when the download operation is over.
  10. Open jumper PL501.
  • Power On the board. Press Remote Controls (RC) “Menu” (M) and “4””7””2””6” buttons respectively.
  • By using RIGHT and LEFT buttons of the RC, select “Service Submenu 2”
  • By using DOWN button of the RC highlight Init NVM. Press RIGHT button of the RC and initialize the PixelWorks side.
  • Turn Off and On the TV.
  • Depending the size of the Panel(15”, 17”, 20”) the screen may be full white and no picture is observed.
If screen is full white:
  1. For 15” TV, Press Remote Controls (RC) “Menu” (M) and “4” “7” “2” “6” buttons and then “0” respectively.
  2. For 17” TV, Press Remote Controls (RC) “Menu” (M) and “4” “7” “2” “6” buttons and then “2” respectively.
  3. For 20” TV, Press Remote Controls (RC) “Menu” (M) and “4” “7” “2” “6” buttons and then “1” respectively.
Posted By: FRANK at 03:38
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