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!

©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 !

Saturday, 9 February 2019

AKIRA - PLT 42TT _ PLASMA TV _ FACTORY ADJUSTMENTS _ MODULES LIST

FACTORY ADJUSTMENT
PANEL VOLTAGE ADJUSTMENT

The power voltage should be adjusted and checked when changing the panel or power board.

DIGITAL BOARD CON01 SELECT TO "INT".
DIGITAL BOARD CON05 SELECT TO "EXT".
MAKE A SW CONEECT TO POWER BOARD CON80011 PIN 1 & PIN5 FOR POWER SWITCH.
FOLLOW THE PANEL LABEL VOLTAGE ADJUST VR.
VOLTAGE CHECK FROM "CHECK POINT" WITH GROUND.

ADJUST SEQUENCE

1th => 2th => 3th => 4th => 5^th

VA VSC VS VR VSET

VR8005 VR8006 VR8003 VR8001 VR8007

COLOR TEMPERATURE ADJUSTMENT

Push the factory service key to into the adjustment mode. The picture will appear as follow:

DVI 5400ºk

X=335 Y=343

GAIN Bias

RGB RGB

XXX XXX

Use the AV key to select the color to adjust and LEFTor RIGHT key to adjust the level. The required equipments are CA-100,Vp300.

a] Adjust Bias first to let the Y be 0.4 on CA-100. Adjust R or B to let the value of X,Y on CA-100 be the same as the value showing screen, The value of Y should be Maintained 0.4 during the adjusting.
b] Move the cursor to adjust Gain. The value of Y should be adjusted to 25. Then adjust R or B to let the value of X,Y on CA-100 be the same as the value showing on screen. The value of Y should be maintain 25 during the adjustment.
c] Repeat to check the Bias and Gain. The value of Y,X and Y should be the same as the previous adjusted value. Then the DVI 5400ºk mode is adjusted completely.

d] Push the factory service key again to next picture. Then repeat the steps a. b. c. to adjust.

e] If the adjustment is completed, repeat d. a. b. and c steps to adjust again.
f] When the last mode AV 13000ºk is adjusted completely, push the factory service key again to leave the adjustment mode,

Note: