Master Electronics Repair !

Welcome to Master Electronics Repair! website.Here you will find:Service Modes, Circuit Diagrams,Service manuals, Firmware Update procedure, Disassemble procedure, Universal remote control setup codes, Troubleshooting, Diagnosing, Measuring, and more.... of many of LCD/LED TV/Displays,others various electronic apparates,trough many technical notes and tips/tricks to help repairing/fixing Troubles/ faults,for electrical technicians.This site helps you to save the Earth from electronic waste!

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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Note that if you don't find what you searched for, try it after a period of time; the site is a never ending job !

..............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 !

Monday, 1 April 2019

DURABAND DBTV1901- HOW TO ENTER SERVICE MODE - SCHEMATIC DIAGRAM

How to enter service mode to Duraband DBTV1901_Schematic Diagram_Memory IC replacemant & adjustments. [Universal Remote Control Set-up Codes]

Semi-conductors (ICs) used _ AN5522_2SD2627LS-CBC11(Hor: Output)_M61250FP(Chroma)_OEC7073A(Micon)_S-24C02BDP-1A(Memory)

SERVICE MODE
To enter the Service Mode, press both set key and remote control key for more than 1 second

CONFIRMATION OF HOURS USED

* POWER ON total hours can be checked on the screen. Total hours are displayed in 16 system of notation.

* Set the VOLUME to minimum.

* Press both VOL. DOWN button on the set and Channel button (6)on the remote control for more than 1 second.

* After the confirmation of using hours, turn off the power.

REPLACING EEPROM (MEMORY) IC

If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings.

1. Enter DATA SET mode by setting VOLUME to minimum.

2. Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 1 second. ADDRESS and DATA should appear.

3. ADDRESS is now selected and should "blink". Using the SET + or - keys on the remote, step through the ADDRESS until required ADDRESS to be changed is reached.

4. Press ENTER to select DATA. When DATA is selected, it will "blink".

5. Again, step through the DATA using SET + or - until required DATA value has been selected.

6. Pressing ENTER will take you back to ADDRESS for further selection if necessary.

7. Repeat steps 3 to 6 until all data has been checked.

8. When satisfied correct DATA has been entered, turn Power Off (return to Standby Mode) to finish the DATA input. The unit will now have the correct DATA for the new memory IC.