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

Friday 29 March 2019

DAEWOO 21U6/21U8ME/MT/MP/MZ HOW TO ENTER SERVICE MODE ALIGNMENTS - CIRCUIT DIAGRAM

DAEWOO 21U6/21U8ME/MT/MP/MZ How to enter Service Mode Alignments - Circuit Diagram

Daewoo 14D4/20D4/21D4 ME/MT/MP/MZ _ 14D6/21D6 ME/MT/MP/MZ _ 14D7/20D7/21D7 ME/MT/MP/MZ _ 21U6/21U8ME/MT/MP/MZ _ DTD-14D3/20D3/21D3 ME/MT/MP/MZ

Used ICs - TDA9859_TDA7297_SDA55XX(Micom)_TDA6107Q_MM1118_TDA8403_STR F6656_24LC168

SERVICE MODE

To Enter SERVICE MODE : Press keys of User Remocon, as follows.
> Ch91, Sharpness 0, Skip(red), Move(green), Menu.
> Choice SERVICE MENU : Pr-Up/Down
> Enter SERVICE SUB MENU : Vol-Up/Down
> Adjust SERVICE MENU : Vol-Up/Down.

ALIGNMENTS

AGC ADJUSTMENT
Pattern : PAL B/G 10CH Color BAR (RF Level = 60 dB)
Connect the Pattern Generator RF Output to Tuner RF Input.
Press the S10 Key of Service Remocon to enter the “AGC MODE”.
Execute the “AUTO AGC” using the Vol-Up Key.

SCREEN ADJUSTMENT
Pattern : PAL B/G Retma
Press the NORMAL Key to set the “NORMAL 1” mode.
Press the S2 Key of Service Remocon.
Adjust the SCREEN VOLUME on FBT so that the horizontal line reach the cut-off point.

FOCUS ADJUSTMENT
Pattern : PAL B/G Retma
Adjust the FOCUS VOLUME on FBT to obtain clear resolution.

WHITE BALANCE ADJUSTMENT
Press the NORMAL Key to set the “NORMAL 1” mode.
Press the S8 Key of Service Remocon to enter the “WHITE BALANCE” mode.
Adjust the each color ( R,G,B ) which appears abnormally on the screen.

GEOMETRIC ADJUSTMENT
Press the NORMAL Key to set the “NORMAL 1” mode.
Press the S6 Key of Service Remocon to enter the “GEOMETRIC” mode.

VERTICAL CENTER ADJUSTMENT
Pattern : PAL B/G Retma
Choose the “V-CENTER” using the Pr-Up/Down Keys.
Adjust the horizontal line of picture to coincide with the mechanical center marks of the CRT using the Vol-Up/Down Keys.
# If the pattern is smaller than the screen, adjust the V-size to fit.

HORIZONTAL CENTER ADJUSTMENT
Pattern : PAL B/G Retma
Choose the “H-CENTER” using the Pr-Up/Down Keys.
Adjust the vertical line of picture to coincide with the mechanical center marks of the CRT using the Vol-Up/Down Keys.

VERTICAL SIZE ADJUSTMENT
Pattern : PAL B/G Retma
Choose the “V-SIZE” using the Pr-Up/Down Keys.
Adjust the vertical size of the picture using the Vol-Up/Down Keys.

HORIZONTAL SIZE ADJUSTMENT
Pattern : PAL B/G Retma
Choose the “H-SIZE” using the Pr-Up/Down Keys.
Set each side over scan to be 10% using the Vol-up/Down Keys.

PINCUSHION ADJUSTMENT
Pattern : PAL B/G Crosshatch
Choose the “PARABOLA” using the Pr-Up/Down Keys; Adjust parabola width to fit on screen.
Choose the “CONER” using the Pr-Up/Down Keys; Adjust comer parabola to fit on screen.
Choose the “TRAPEZIUM” using the Pr-Up/Down Keys; Adjust trapezium to fit on screen.

S-CORRECTION ADJUSTMENT
Pattern : PAL B/G Crosshatch
Choose the “S-CORRECTION” using the Pr-Up/Down Keys.
Adjust each distance of horizontal line to be the same using the Vol-Up/Down Keys.

SUB-BRIGHTNESS ADJUSTMENT
Pattern : PAL B/G Retma
Press the NORMAL Keys to set the “NORMAL 1” mode.

SERVICE REMOTE CONTROL