Samsung Orchid-DLP TV HLT5676SX/XAA How to enter service mode, CCA adjustments, Calibration, SMPS circuit diagram

Service Adjustment
Vertical / Horizontal Position Adjustment
1. Turn off the power to put the unit into the STAND-BY mode.
2. In order to enter the Service Mode, Press "Mute" > "1" > "8" > "2" > "POWER" buttons on the Remote Control.
3. Select "Service" on the first display of the Service mode menu.
4. Select the H/V-Position for vertical and horizontal positioning by using the ▲ ▼ (Up & Down) buttons.
Press the (Left or Right) buttons to adjust the screen position.
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.)

How to Access Service Mode

Turn off the power to put the unit into the STAND-BY mode.
2. In order to enter the Service Mode, Press "Mute" > "1” > "8" > "2" > "POWER" button on the Remote Control.
In case entry into SERVICE MODE is unsuccessful, repeat the procedures above.
3. Initial DISPLAY State in times of Service Mode Switch over.

Buttons operations within Service Mode

MENU	Full Menu Display / Move to Parent Menu
Direction keys ▲ / ▼	Item Selection by Moving the Cursor
Direction keys L/R	Data Increase/Decrease for the Selected Item
Source	Cycles through the active input source that are connected to the unit
Enter	Item Selection/execution

CCA Adjustment Service Methods:

CCA Adjustment is needed after changing a DMD board or Main board
CCA : 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,Yellow,Cyan and White color patterns, using a color coordinate measuring equipment. At this moment, color correction is performed below.

1) This procedure is needed if the Main Board or DMD Board is changed.
2) Turn off power to put the unit into the STAND-BY mode.
3) In order to enter the Service Mode, press "Mute">"1">"8">"2">"Power" buttons on the Remote Control.

4) Select "Option" on the display of the Service mode menu
5) If the DMD PCB is changed, Press the ▼ ▲(Up or Down) button to move to Digital→DMD, then press ENTER to select

6) Then Press ENTER to save CCA information to the DMD board
7) If the Main PCB is changed, Press the ▼ ▲(Up or Down) button to move to DMD→Digital, then press ENTER to select.

8) Then Press ENTER to save CCA information to the Main board

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 per sonnel, that 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.

ACTUATOR GAIN Adjustment

1. Before Adjustment

1) Turn off the power to put the unit into the STAND-BY mode.

2) In order to enter the Service Mode, Press "Mute" → "1" → "8" → "2" → "POWER" button on the Remote Control.

3) Select "Service" on the first display of the Service mode menu.

4) ACTUATOR GAIN1,2¸¦ Actu Gain Control or Actu Gain Detail.

5) The Actuator gain setup screen will be displayed.

6) Press the (Left of Right) button to adjust. check the smooth picture at it's minimum and maximum values of changing ,then adjust to the mean value.

Actu Gain Detail [In case of controlling with Crosshatch Pattern.]

You can see the Crosshatch Pattern when you press the “L/R” button to adjust.

CAUTION: Actu Gain Detail is just controlled by your eye because control value doesn’t appear In picture.

Making Adjustments
1) 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.

SMPS (Power Supply Regulator Board) circuit diagram

Software Upgrade

Insert a USB drive containing the firmware upgrade into the USB Upgrade Port on t2. Press the MENU button.
Press the L/R button to select Setup, then press the ENTER button.
Press the ▲or ▼ button to select SW Upgrade, then press the ENTER button.
The message Scanning for USB... It may take up to 30 seconds. is displayed. Please be careful to not disconnect the power or remove the USB drive while upgrades are being applied.
The TV will shut off and turn on automatically after completing the firmware upgrade. Please check the firmware version after the upgrades are complete.
The firmware and upgrade process may be different by country and region. 

Calibration

Tilt the Screen
1. Remove the 20 point screws. Remove the Bottom cover.
: BH,+,S,M4,L10,ZPC(BLK),SWRCH18 (6ea)
: BH,+,B,M4,L12,ZPC(BLK),SWRCH18 (14ea)

2. Loosen the 3 points screws.
＊Left 2 points screws
: PWH,S,M3,L8,ZPC(YEL),SWRCH18A
＊Right 1 points screw
: PWH,S,M3,L7,ZPC(YEL),SWRCH18A

3. Turn off the power to put the unit into the STAND-BY mode.In order to enter the Service Mode, Press "Mute" > "1" > "8" > "2" > "POWER" buttons on the Remote Control.Select "DDP3021(LED)" on the first display of the Service Mode menu. Press the ▲ ▼(Up or Down) buttons, then press ENTER to select. Press the (Right) button until you see the CROSSHATCH PATTERN.Then, adjust the screen position, by holding both of the upper corners of the DMD board.

Even when those screws are loosened, the board does not separate it can be moved within the adjustable range because there are spring screws at the center holding it.
When adjusting the screen, it is better for two people to work together.
One person should adjust the picture position while the other person looks at the screen.
If only one person is performing this adjustment, back port should be removed, and image on the screen monitored through there.
The movement direction of the board and the picture are different.
- When it is tilted to the left, the screen tilts to the right.
- But, When the board is lifted upward, the screen lifted upward, too.
When the picture adjustment is completed:
First, tighten the two screws on the left of the DMD board and then slowly tighten the one screw on the bottom right.
Be careful not to touch the board while tightening the screws.
(When using an electric-powered screwdriver, be careful that the torque is not too high.)

Align the Focus

1. Remove the DMD FAN.

But don't disconnect connector

2. Turn the knob to find best focus at the screen the knob is black wheel under the heat sink.

Noise:

Internal noise may be caused by a foreign substance on the fan or driving device.

For a DLP TV, the lamp fan, DMD board fan and color wheel are vulnerable to noise. Sometimes the connector wire around the lamp or DMD fan makes contact with the fan, while the color wheel is protected inside the module and cannot make contact with any nearby wires. However the color wheel sensor or the drive motor may cause noise by making contact with the color wheel.

As the color wheel uses an air bearing system, it has a very slight possibility of creating internal noise.

When irregular noise occurs for no particular reason, check the inside of the TV for any foreign substances.

The DLP projection TV may cause noise as the physical screen is empty inside, causing a resonance to a particular frequency.

Thus a low vibration is not a malfunction.

Any 'creaking' noise is mostly from the structure of the device itself. A short, harsh noise may occur from a distortion or malformation due to thermal expansion between the metal joints, screws and loaded parts, respectively. Any intermittent 'creaking' noise can be removed by loosening the screws.

4. A black screen with the lamp on: Replace the DMD board.

5. Line Pattern: Regular line patterns occur vertically or horizontally: Replace the DMD board.

6. Voice Distortion: Replace the main or rear board.

7. Outside Light: This is not a product malfunction, but a possible installation or human error. This occurs when the projected light from the surrounding illumination reflects onto the screen. This disappears as the TV starts operating and the TV lamp gets brighter. However, you can avoid outside light by changing the position of the TV or the installation angle.

Decreasing the illumination or changing the indoor lighting may work.

8. Screen Flip-over

Enter Factory mode in DDP3021 and perform H-Flip (flip horizontally) and V-Flip (flip vertically).

The screen will flip over horizontally or vertically.

Other Screen Errors:

Video Circuit Error Checking
Basics
> The DDP3021 on the DMD board has a feature to display internal test patterns.
> SDP62, which is an end port in the digital board, has a feature to display internal test patterns.
> The rear board is the first output and the main board is the second one, followed by DMD, which is the final one.

Diagnosis By Module 1. Access Service Mode (In Standby mode, press "Mute", "1", "8", "2" and "Power" to turn the screen on and enter service mode) 2. Check if there is an error in the DMD board DDP3021 > TEST PATTERN > Press the right arrow key: Options of FULL WHITE, BLACK, RED, GREEN and BLUE PATTERN are displayed on the screen. If "Pattern" does not appear, this is a DMD board error. 3. Check if there is an error in the main board before the DMD. When the DMD board has been determined to be error free based on the test patterns: FACTORY MODE > SDP62 > TEST PATTERN normal display: no error in the main board. If "Pattern" does not appear, you have to check a rear board first, and check a DMD Board second, next check a main Board.

Click on the pictures to magnify