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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All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Friday, 5 April 2019

HISENSE LHDN26W57 HOW TO ENTER SERVICE MODE - [MT5380 CHASSIS] - LCD TV

How to enter Service Mode - HISENSE LHDN26W57 [MT5380 Chassis] - LCD TV

How to enter service mode _ Aging Mode _ Hisense LHDN 26W57 LCD TV
SERVICE MODE
With factory RC (remote control)
  • Press "M" button and enter factory mode.
  • Press "Menu" button and enter factory OSD menu.
  • Press "CH+"/"CH-" button select the function menu, press "VOL+"/"VOL-" enter the selected function menu. Press "VOL+"/"VOL-" button adjust values in the menu.
With user's RC
  1. Power TV On
  2. Press Menu button and call up User OSD Menu
  3. Select Audio > Balance
  4. Enter 0 >5 >3 2 in sequence. [Note: If necessary, re-do number keys.]
  5. Factory OSD appears.
  6. Press Menu again and leave factory OSD.
WHITE BALANCE
 [Note: Different source has different WB values. Before adjusting, please change to desired source.]
Auto Color
For VGA and Component Video sources, WB values must be adjusted.  Before adjusting, prepare the signal instruments such as DVD or K-8256 first, and find the video picture with gray and color bars. Then change to desired source.
  • Press ‘M’ button and enter the factory mode.
  • Press ‘Menu’ button and enter factory OSD menu.
  • Select the item ‘Auto Color’.
  • Press ‘Vol +’ button to auto color.
  • Close the OSD menu after 5 seconds.
Clear the EEPROM
Note: The factory menu date varies according to different sources. Incase changing the factory data by error, you can choose to "Clean Protected", by which you can resume the default value, To clear the EEPROM:
  1. Select the item ‘Clean All’.
  2. Press ‘Vol +’ button to clear the EEPROM data.
  3. Close the OSD menu after 5 seconds.
  4. Restart the TV.
To Exit the Aging Mode
If there is a red "M" moving on the screen, it mean the TV is in Aging mode.
To exit the Aging mode, use your user RC, and enter 80 87 in sequence.