REPAIRING AND NOT THROWING AWAY

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, 22 March 2019

SAMSUNG HLP - 4663WX - HOW TO ADJUST CCA - DLP PROJECTION TV - ACTUATOR GAIN - INDEX DELAY

SAMSUNG HLP - 4663WX - HOW TO ADJUST CCA - DLP PROJECTION TV - ACTUATOR GAIN - INDEX DELAY




CCA ADJUSTMENT
     CCA Adjustment is needed after changing a light engine or digital board.  In DLP TV, even the same RGB color may differ depending on the light engine. CCA (Color Coordinate Adjustment) corrects the color to achieve the color accuracy. CCA performs color correction after measuring and inputting the current light engine's data on actual color coordinates for displayed Red, Green, Blue, and White color patterns, using a color coordinate measuring equipment.  At this moment, color correction is performed on the basis of previously inputted Desired Color Coordinates and Measured Color Coordinates. Measured Data on Service Engine's color coordinates is presented on the CCA label. Input the label values to perform CCA color correction.

  Condition of the CCA Label upon Receipt of the Service Engine.
"CCA LABEL" describes the measured color coordinates on the light engine.


CCA Service Procedure

To execute CCA adjustment , perform the following steps:

  1. Turn off the power to make the SET STAND-BY mode.
  2. In order to enter the Service Mode, Press {"Mute" à"1” à"8" à"2" à"POWER"} button on the Remote Control.
  3. Select FACTORY > SERVICE > CCA mode on the SET.
  4. Switch the CCA OFF.
  5. Input the CCA basic engine data to the SET.
  6. Input the D-White -x, y values in the coordinates per destination. (if necessary)
  7. Select WB SPREAD, then press Enter to activate the WB Spread SET ensuring that you adjust until you get the OK sign. After adjusting, exit Factory Mode.
  8. When the adjustment is complete, check the picture quality.
CCA MENU in FACTORY MODE
CCA ON/OFF
Red - x :
Red - y :
Red - Y :
Green - x :
Green - y :
Green - Y :
Blue - x :
Blue - y :
Blue - Y :
White - x :
White - y :
White - Y :
WB SPREAD
Move HDMI
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## Attention:  Performing CCA is independent on current display's resolution and input signal type if you don't measure color coordinates data.
Measuring color coordinates data requires specific equipment not possessed by service personnel, what makes performing manual adjustment impossible. Adjusting CCA is applied to all the signal mode. Don't change Desired value because it will be harmful to the color of the SET.
INDEX DELAY ADJUSTMENT
  • Turn off the power to make the SET STAND-BY mode.
  • In order to enter the Service Mode, Press {"Mute" à"1” à"8" à"2" à"POWER"} button on the Remote Control.
  • Select "Service" on the first display of the Service mode menu.
  • Select the V-position for vertical positioning and H-position for horizontal positioning by using the ▲ ▼(up, down) buttons.  [Do not set the V-position value to 34 or 35.]  (Setting to these values will cause horizontal lines on the right side of the screen.).
ACTUATOR GAIN ADJUSTMENT
Before Adjustment:
  1. Turn off the power to make the SET STAND-BY mode.
  2. In order to enter the Service Mode, Press {"Mute" à"1” à"8" à"2" à"POWER"} button on the Remote Control.
  3. Select "Service" on the first display of the Service mode menu.
  4. Press the (Up or Down) button to move to ACTUATOR GAIN, then press ENTER to select.
Making Adjustments
  • Change the actuator values to eliminate saw tooth shapes.
  • To fine tune, increase the data value ensuring that you get the center between the starting and ending points of the disappearing saw tooth shape.
Posted By: FRANK at 03:34
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