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 !

Thursday, 14 March 2019

TOSHIBA 50L4333D – HOW TO ENTER SERVICE MODE, HOTEL MODE, HOW TO UPDATE THE SOFTWARE, POWER BOARD SCHEMATIC AND MORE

Toshiba 50L4333D – How to enter service mode, hotel mode, How to update the software, power board schematic and more …

Toshiba 50L4333D(G), (F),50L4331D(G),50L4337D(G), (F)
Many electrical and mechanical parts in this chassis have special safety-related characteristics.
These characteristics are often passed unnoticed by a visual inspection and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this manual and its supplements; electrical components having such features are identified by the international hazard symbols on the schematic diagram and the parts list.
Before replacing any of these components, read the parts list in this manual carefully. The use of substitute replacement parts which do not have the same safety characteristics as specified
in the parts list may create electrical shock, fire, or other hazards.
ENTERING SERVICE MODE
Press the MUTE button once on Remote Control.
TV mode changes as follows. Un-Mute => Mute
Press button again and keep pressing, ((Sound Mute is canceled): While pressing the button, press “P”/ “->” button on TV control panel. (Enter Service Mode)
The following key entry during display of adjustment menu provides special functions.
TEST SIGNAL SELECTION
While displaying the adjustment menu, every pressing of “” button on the Remote Control changes the built-in test patterns on screen as described below.  When a pattern is changed at the time of an ATV display, it can display only for a moment.
While displaying the adjustment menu, press the “P-UP” button to cycle through the adjustment items.
ADJUSTING THE DATA
While displaying the adjustment menu, press the VOLUME +/– button to change the value of data in the range from 00H to FFH. The variable range depends on the adjusting item.
Press the [Exit] button on Remote.
ENTERING HOTEL MODE MENU
Hotel Mode Menu should be shown by the following operation.
Press any button on TV to activate Touch Sensor. White LED will light up.
DISPLAY OF HOTEL MODE MENU
- The Graphic Design and color of Hotel Mode Menu is the same as the User menu.  (Small differences which do not affect to operation will be acceptable)
- The language will follow the “Menu Language” setting in the menu.
OPERATING HOTEL MODE MENU
- To enable Hotel Mode, use the ◄/► arrow keys while “Hotel Mode” item is highlighted to select “On”.
Once Hotel Mode is on, the Hotel Mode settings will be enabled for adjusting.
- Use ▲ and ▼ buttons to access the hotel mode settings.
Use ◄/► buttons to change the settings.
- Press Exit when finished adjusting the settings.

Power board circuit diagram [Schematic]
MAIN BOARD EXCHANGE
When Main board is exchanged, the Application SW (Firrmware) and Model Setting need to be updated.
Updating of Software and Model Setting
1. Copy the Application SW (Firmware) file and the Model Setting file to the root of the USB mass storage device.
2. Unplug TV, and then Insert the USB mass storage device to the USB slot of the TV.
3. Plug TV. [Software updating starts].  (If Software updating does not start and the front LED lights red, then press [Power] key on Remote Control to start Software updating)
4. After updating complete, unplug TV and remove the USB mass storage device
5. Plug TV, then check the updating by using self check screen.
6. Update to the newest SW. [This model can be updated from aerial or network to the newest Software.]
Confirmation of Software updating
Check the TV Model and Model Info by using self check screen.
1. Press SETUP on Remote Control.
2. Select “Get Help” >> “System Information”
3. Press “3” “5” “7” “4”
Self check screen is displayed.
Posted By: FRANK at 02:36
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