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 !

Wednesday, 27 February 2019

HOW TO ENTER SERVICE MODE TO MITSUBISHI [WD-52525 _ WD-52725 _ WD-52825 _ WD-62525 _ WD-62725 _ WD-62825]

HOW TO ENTER SERVICE MODE TO MITSUBISHI [WD-52525 _ WD-52725 _ WD-52825 _ WD-62525 _ WD-62725 _ WD-62825]



There are 5 service adjustments required to do with this TV.
 Two electrical adjustments, and Three mechanical adjustments.
Circuit Adjustment Mode The circuit adjustment mode is used only for: * Test Signal Activation. ** Horizontal Centering. *** Vertical Centering.
Activating Circuit Adjsutment Mode [Service Mode]
* Press the "TV MENU" button on the remote control handset. the customer Menu screen will appear. ** Press digit buttons in the order [2-4-5-7].  The screen will turn to adjustment mode. Test Signal Activation
When in the circutit adjustment  mode, press "Rewind" once on the remote control.
This test pattern is used for both electrical and mechanical adjustments.
 Use "Audio" button to select the functions. 
To adjsut the data value to the selected item, press [UP & DOWN] cursor buttons. Press "Enter" to wirite the adjusted data to memory.  The color of the display characters will change to Red. If you do not press the "Enter" button, the changed data won't be saved to memory. To Exit from service mode, press "Home" button or "Menu" button twice. Resetting data to factory mode. * Enter service adjustment mode, as described above. [Press TV Menu 2-4-5-7]. ** Press [0] button on the remote.  Three choises will appear on the screen.
 [1] COPY LIGHT ENGINE EEPROM TO DM
[2] RESTORE BACKUP. [3] UPLOAD TERMINAL BOARD DATA.
The first option should be selected, after replacing light engine or electrical chasis. The second option should be selected, resets service mode data to back to Factory set values. [Use this feature if service adjustment data has been corrupted, or improper adjustments has done with it] The third feature uploads white balance data from PWB-SIGNAL [do not select this option.  It is used for depot level service only]