Troubleshooting Samsung Electronics 4-1 4. Troubleshooting 4-1 Troubleshooting 4-1-1 First Checklist for Troubleshooting ■ Basics: - The DDP3021 on the DMD board has a feature to display internal test patterns. - DNle, which is an end port in the main board, has a feature to display internal test patterns. - The MT5382P is the first output and the DNIe output is the second one, followed by DMD, which is the final one. - The video path flow : RF/External input → MT5382P → DNIe FBE3 → DDP3021. ■ 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 and so on are displayed on the screen. If “Pattern” does not appear or same symptom is appeared on DDP3021 pattern, this is a DMD board error. 3. Check if there is an error in the main board. Check for a power signal from SMPS to other board see the schematic diagram (7-3) And check for indicated power signal. ■ Video display flow chart INPUT MT5382P DDP3021 FBE3 DMD panel DMD MAIN Screen DNIE Pattern DDP3021 Pattern NO MAIN BOARD ERROR OK DMD BOARD ERROR NO OK CHECK THE SCREEN CHECK THE SOURCE
Transcript
Troubleshooting
Samsung Electronics 4-1
4. Troubleshooting4-1 Troubleshooting
4-1-1 FirstChecklistforTroubleshooting
■ Basics:- The DDP3021 on the DMD board has a feature to display internal test patterns.- DNle, which is an end port in the main board, has a feature to display internal test patterns.- The MT5382P is the first output and the DNIe output is the second one, followed by DMD, which is the final one.- Thevideopathflow:RF/Externalinput→MT5382P→DNIe FBE3→DDP3021.
■ DiagnosisByModule1. 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→TESTPATTERN→Presstherightarrowkey: Options of FULL WHITE, BLACK, RED, GREEN and BLUE PATTERN and so on are displayed on the screen. If “Pattern” does not appear or same symptom is appeared on DDP3021 pattern, this is a DMD board error.
3. Check if there is an error in the main board. Check for a power signal from SMPS to other board see the schematic diagram (7-3) And check for indicated power signal.
■ Videodisplayflowchart
INPUT
MT5382P DDP3021FBE3 DMDpanel
DMDMAINScreen
DNIE Pattern DDP3021 Pattern
NO
MAIN BOARD ERROR
OK
DMD BOARD ERROR
NO
OK CHECK THE SCREEN
CHECK THE SOURCE
Troubleshooting
4-2 Samsung Electronics
■ FlowChartforMalfunction
No
Yes
No
Yes
Yes
No
No
Yes
on the screen?
Yes
Yes
Yes
Yes
No
No
No
No
Is LAMP for illumination off?
Check main board for input power (CN1101)
1) Check the LVDS Cableconnected between the MainBoard and the DMD Board.If necessary, replace LVDS Cable.
Check Cables connected to DMD Board. If necessary, replace DMD Board.
12V OK? (Pin15, 16, 19, 20, 24)
17.5V OK? (Pin4, 8)
Check SMPS
Replace the lamp
Yes
Is LAMP for illumination on? Replace the ballast Assy
Can you see anything
Can you see OSD menurunning on the screen?
Can you see Digital Channel broadcast ?
Check Cables connected to Main Board. If necessary,replace the Main Board
Does the TV turn on?
Check the Power Cord
Replace the Main Board
Troubleshooting
Samsung Electronics 4-3
■ Installation&Connection
<61inch> <67inch>
●: Light is On◑: Light is Blinking○: Light is Off
STAND BY/TEMP
TIMER LAMP Indication
● ○ ○ Standby state.
○ ○ ◑ The picture will automatically appear in about 15 seconds.
○ ● ◑ Auto Timer ON/OFF has been set and the set will automatically be turned on in about 15 seconds.
◑ ◑ ○ A cooling fan inside the set is not operating normally.
◑ ○ ◑ Lamp cover on the side of the set is not properly shut.
◑ ○ ○Check if the ventilation hole on the side of the set is blocked, because if the inner temperature is too high, the power will shut off.
◑ ◑ ◑ Lamp may be defective. Please contact a certified technician.
■ ProtectStatus1. Attempting to turn the LAMP on fails repeatedly
If turning the LAMP on fails, the set automatically tries turning the LAMP on 3 times. If all attempts fail, all LED’s on the front panel will blink. Check the, lamp or ballast and the SMPS. There is no sub power or LED driver.
Troubleshooting
4-4 Samsung Electronics
4-1-2 FaultsandCorrectiveActionsSymptom Related Image Causes and Countermeasures
40Verticallines16pixelswide DDP3021 or BGA, DMD panelinterference.- Replace the DMD board
Horizontal Bar or No Raster Error in DDP3021 or the DMD panel.- Replace the DMD board
DottedVerticalBar Error in Rambus Dram (IC302) or the soldering.- Replace the DMD board
Beehive mosaic patterns all overthe screen
ErrorintheLVDSReceiver(IC102,IC103) or the soldering. The H sync signals are not transferred to DDP3021.- Replace the DMD board.
Troubleshooting
Samsung Electronics 4-5
1. Noise: Internal noise may be caused by a foreign substance on the fan or driving device. ForaDLPTV,thelampfan,DMDboardfanandcolorwheelarevulnerabletonoise.Sometimestheconnectorwirearoundthe 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. Whenirregularnoiseoccursfornoparticularreason,checktheinsideoftheTVforanyforeignsubstances. TheDLPprojectionTVmaycausenoisebecausethephysicalspaceisemptyinside,causingaresonanceataparticularfrequency. 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.
2. BlackScreen(VoiceOutput):ReplacetheDMDboard
3. A black screen with the lamp on: Replace the DMD board.
4. Line Pattern: Regular line patterns occur vertically or horizontally: Replace the DMD board.
5. VoiceDistortion:Replacethemainboard.
6. OutsideLight:Thisisnotaproductmalfunction,butapossibleinstallationorhumanerror.Thisoccurswhentheprojectedlight fromthesurroundingilluminationreflectsontothescreen.ThisdisappearsastheTVstartsoperatingandtheTVlampgets brighter.However,youcanavoidoutsidelightbychangingthepositionoftheTVortheinstallationangle. Decreasing the illumination or changing the indoor lighting may work.
7. Screen Flip-over: EnterFactorymodeinDDP3021andperformH-Flip(fliphorizontally)andV-Flip(flipvertically). The screen will flip over horizontally or vertically.
Troubleshooting
4-6 Samsung Electronics
4-2 Adjustment
4-2-1 ServiceInstruction
■ CheckitemslistedafterchangingeachCheck Items
Replaced ItemsS/WVersion Front LED Index Delay Actuator Gain
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. IncaseentryintoSERVICEMODEisunsuccessful,repeattheproceduresabove.
3. Initial DISPLAY State in times of Service Mode Switch overs
4. Buttons operations within Service Mode
MENU Full Menu Display / Move to Parent MenuDirectionkeys▲/▼ Item Selection by Moving the CursorDirection keys◀ / ▶ Data Increase/Decrease for the Selected Item
Source Cycles through the active input source that are connected to the unitEnter Item Selection/execution
No Item Range Default Remark31 TUNER ALPS/SEMCO ALPS
32 DDP 3D Test 3D ready Function TEST
33 VisualTest Enable/Disable Disable
34 Expert Adj ON/OFF OFF
35 Panel Option Small/Big Small
36 DMD→DIGITAL To trans the CCA data from DMD to DIGITAL
2. DDP3021
No Item Range Default Remark1 H/V-Position H:0/V:0~H:60/V:60 H:60/V:30 HorizontalandVerticalimageadjustment2 LAMP SYNC Pulse Pulse(P), Pass(T)
3 INDEX DELAY 0~359 65
Synchronizes the base position of the color wheel with the corresponding color signal.This is critical to the natural color display. If the index delay is not properly set, even the correct CCA cordinates will not help when displaying natural colors.
4 SEQ SELECT 0x00 Sequence Selection5 V-FLIP Flip/Normal Normal VerticalFlipOperation6 H-FLIP Flip/Normal Normal Horizontal Flip Operation7 GAMMA [0]FLIM~[15]OEM [15]OEM Gamma Table Selection8 BCP ON/OFF ON SLR Function On/Off9 Lamp Boost 15 Lamp Boost value selection
This displays the built-in pattern of the DDP3021 chip.DDP3021 drives the DMD panel, so displaying this pattern means there is no error in the DDP3021 projection function and the panel itself.
10 Blue-Y 0~32768 69 Blue-Y adjustment11 White-x 0~32768 273 White-x adjustment12 White-y 0~32768 285 White-y adjustment13 White-Y 0~32768 638 White-Y adjustment14 Yellow-x 0~32768 0 Yellow-x adjustment15 Yellow-y 0~32768 0 Yellow-y adjustment16 Yellow-Y 0~32768 0 Yellow-Y adjustment17 Cyan-x 0~32768 0 Cyan-x adjustment18 Cyan-y 0~32768 0 Cyan-y adjustment19 Cyan-Y 0~32768 0 Cyan-Y adjustment20 DRedX 0~32768 660 Target Red X value for CCA21 DRedY 0~32768 330 Target Red Y value for CCA22 DGreenX 0~32768 275 Target Green X value for CCA23 DGreenY 0~32768 755 Target Green Y value for CCA24 DBlueX 0~32768 148 Target Blue X value for CCA25 DBlueY 0~32768 58 Target Blue Y value for CCA26 DCyanX 0~32768 193 Target Cyan X value for CCA27 DCyanY 0~32768 292 Target Cyan Y value for CCA28 DMagentaX 0~32768 284 Target Magenta X value for CCA29 DMagentaY 0~32768 127 Target Magenta Y value for CCA30 DYellowX 0~32768 447 Target Yellow X value for CCA31 DYellowY 0~32768 534 Target Yellow Y value for CCA32 [COOL2] DWhite-X 0~32768 267 Target White X value for CCA33 [COOL2] DWhite-Y 0~32768 276 Target White Y value for CCA34 [COOL1] DWhite-X 0~32768 27935 [COOL1] DWhite-Y 0~32768 29136 [NORMAL] DWhite-X 0~32768 29037 [NORMAL] DWhite-Y 0~32768 30338 [WARM1] DWhite-X 0~32768 29939 [WARM1] DWhite-Y 0~32768 31440 [WARM2] DWhite-X 0~32768 31341 [WARM2] DWhite-Y 0~32768 32942 WB Spread
Troubleshooting
Samsung Electronics 4-11
4. Cinema CCA
No Item Range Default Remark1 DRedX 0~32768 645 Target Red X value for CCA2 DRedY 0~32768 330 Target Red Y value for CCA3 DGreenX 0~32768 295 Target Green X value for CCA4 DGreenY 0~32768 610 Target Green Y value for CCA5 DBlueX 0~32768 148 Target Blue X value for CCA6 DBlueY 0~32768 58 Target Blue Y value for CCA7 DCyanX 0~32768 237 Target Cyan X value for CCA8 DCyanY 0~32768 379 Target Cyan Y value for CCA9 DMagentaX 0~32768 311 Target Magenta X value for CCA
10 DMagentaY 0~32768 146 Target Magenta Y value for CCA11 DYellowX 0~32768 419 Target Yellow X value for CCA12 DYellowY 0~32768 515 Target Yellow Y value for CCA13 [COOL2] DWhite-X 0~32768 267 Target White X value for CCA14 [COOL2] DWhite-Y 0~32768 276 Target White Y value for CCA15 [COOL1] DWhite-X 0~32768 27916 [COOL1] DWhite-Y 0~32768 29117 [NORMAL] DWhite-X 0~32768 29018 [NORMAL] DWhite-Y 0~32768 30319 [WARM1] DWhite-X 0~32768 29920 [WARM1] DWhite-Y 0~32768 31421 [WARM2] DWhite-X 0~32768 31322 [WARM2] DWhite-Y 0~32768 329
5. SP Actuator
No Item Range Default Remark1 Actu Gain [Patt 1] 0~175 40 Actuator Gain adjustment2 Actu Gain [Patt 2] 0~175 40 Actuator Gain adjustment3 Actu On/Off 0~1 ON Actuator On/Off selection3 DB Gain 0~1 14 DB On/Off ON/OFF OFF5 DB Border OFF6 DB BP weight 0~3 0 %
8 DB Aperture Open/Close Open
9 SB Gain 0~255 0
Troubleshooting
4-12 Samsung Electronics
6. ESP
No Item Range Default Remark1 Dynamic Global On/Off ON/OFF OFF2 Dynamic Local On/Off ON/OFF OFF3 Dynamic Skin On/Off ON/OFF OFF4 Dynamic Strength Low/Mid/Max Mid5 Dynamic Cont Gain 0~100 06 Dynamic Satu ON/OFF OFF7 Dynamic Satu Gain 0~255 1288 Sharp Picture ON/OFF ON9 VLUT TBD0
10 Sharp Filter HD High11 Sharp Picture Gain 0~255 100
7. White Balance
No Item Range Default Remark1 Sel P-Mode Dynamic,Movie Dynamic2 Sub Brightness 0~255 1283 R-Offset 0~1023 5124 G-Offset 0~1023 5125 B-Offset 0~1023 5126 Sub Contrast 0~255 1287 R-Gain 0~1023 5128 G-Gain 0~1023 5129 B-Gain 0~1023 512
8. EPA Standard
No Item Range Default Remark1 Standard Contrast 0~100 952 Standard Brightness 0~100 453 Standard Sharpness 0~100 504 Standard Color 0~100 505 Standard Tint -50~50 0
Troubleshooting
Samsung Electronics 4-13
9. MT5382p
No Item Range Default Remark1 Manual AGC ON/OFF OFF2 MIN_HWIDTH 0~15 73 MAX_HWIDTH 0~63 204 TH_HIGH 0~255 75 TH_SUPER 0~255 266 Noise Level 0 07 Low Gain 0~255 748 Middle Gain 0~255 809 High Gain 0~255 80
No Item Range Default Remark1 EDID ON/OFF ON/OFF OFF2 ALL EDID EDID ALL port Update3 PC EDID PC EDID Update4 HDMI1 EDID HDMI1 EDID Update5 HDMI2 EDID HDMI2 EDID Update6 HDMI3 EDID HDMI3 EDID Update
7 EDIDHDMI1Ver HDMI 1.2/ HDMI 1.3 HDMI 1.3
Troubleshooting
4-16 Samsung Electronics
14.SERVICE
No Item Range Default Remark
1 H/V-Position H:0/V:0~H:60/V:60 H:60/V:30
2 User Reset -
3 INDEX DELAY 0~359 654 LAMP SYNC Pulse5 CCA ON/OFF ON6 DMD→DIGITAL -7 DIGITAL→DMD -8 Lamp Life 9 Lamp Clear
10 Mute Time [RF] 0~1000 600ms11 Lamp Select Philips12 Actu Gain [Patt 1] 0~175 4013 Actu Gain [Patt 2] 0~175 40
15.ViewLog
No Item Range Default Remark
1 Select Log Type DETECT
2 ViewLog3 Delete Log
Troubleshooting
Samsung Electronics 4-17
4-2-4 ServiceAdjustment
■ Vertical/HorizontalPositionAdjustment
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 “DDP3021” on the first display of the Service mode menu.
4. Select“H/V-Position”forverticalpositioningandHorizontalpositioningbyusing▲/▼/◄/►thebuttons. Press the (Up, Down, Left, Right) buttons to adjust the screen position.
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 below.
1) This procedure is needed if the Main board, DMD Board, and light engine are 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 Byte” on the display of the Service mode menu5) IfeithertheDMDorthelightengineischanged,pressthe▼▲(UporDown)buttontomovetoDigital→DMD,thenpress
8) Then Press ENTER to save CCA information to the Main board
＊AttentionPerforming CCA is independent on current display’s resolution and input signal type if you don’t measure color coordinates data.Measuringcolorcoordinatesdatarequiresspecificequipmentnotpossessedbyservicepersonnel,thatmakesperformingmanualadjustment 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.
Troubleshooting
4-20 Samsung Electronics
■ ACTUATORGAINAdjustment
1. Before Adjustment1) 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) Press the ▲▼ (Up or Down) button to move to Actu Gain [Patt 1], Actu Gain [Patt 2], then press ENTER to select.5) The Actuator gain setup screen will be displayed.6) Pressthe◀▶ (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 [Patt 1], Actu Gain [Patt 2]
2. Making Adjustments1) As shown in the picture above, 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.
Actu Gain [Patt 1] 40
Before Adjusting After Adjusting
Troubleshooting
Samsung Electronics 4-21
4-2-5 Replacements&Calibration
■ TilttheScreen
3. TurnoffthepowertoputtheunitintotheSTAND-BYmode.InordertoentertheServiceMode,Press“Mute”→“1”→“8”→ “2”→“POWER”buttonsontheremotecontrol.Select“DDP3021”onthefirstdisplayoftheServiceModemenu.Pressthe ▲▼(Up or Down) buttons must select the test pattern option, 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.
1. Remove the 9 point screws. Remove the Bottom cover. Fix the safety switch on the right with tape so that the set can be turned on after removing the bottom cover. : TH,B,M4.L15,BLK,SWRCH18A
2. Loosen the 3 points screws.＊Left 2 points screws
Fix the safety switch on the right with tape so that theset can be turned on after removing the bottom cover.
CROSSHATCH PATTERN
CROSSHATCH PATTERN
Troubleshooting
4-22 Samsung Electronics
※ 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.
※ When one person works, do the following:1) Remove the side-cover of the cabinet side.2) See the screen through the hole on the side and adjust the image location.
※The movement direction of the board and the picture are opposite. - When the board is lifted upward, the screen descends down. - When it is tilted to the left, the screen tilts to the right.
※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.)
CROSSHATCH PATTERN
Troubleshooting
Samsung Electronics 4-23
■ AligntheFocus
1. Remove the 2 screws. : TH,B,M4.L15,BLK,SWRCH18A
3. Adjust the Lens Focus.
4. Adjust the Lens Focus.
2. Pull out the holder Chassis.
1) Input a Cross hatch pattern (refer to page. 4-21) or enter service mode and use the internal generated patterns.
2) Insert your hand/finger into the unit as shown in the figure and adjust the focus alignment dial of the Projection Lens Clockwise or Counter Clockwise (See picture in step 4) until the picture is clear.
3) Since the alignment is done from the rear use a mirror or a second person to confirm the adjustment is complete or remove side port and view screen through port on side of unit Focus Alignment
When one person works, do the following:1) Remove the side-cover of the cabinet side.2 See the screen through the hole on the side and adjust
the focus.
ccw cw
Focus Alignment
ccw cw
Focus Alignment
ccw cw
Focus Alignment
ccw cw
Focus Alignment
CROSSHATCH PATTERN
Troubleshooting
4-24 Samsung Electronics
4-3 Upgrade
4-3-1 HowtoUpdateSoftware
1. Insert a USB drive containing the firmware upgrade into the USB Upgrade Port on the side oftheTV.
2. Press the MENU button. Pressthe▲or▼buttontoselectSetup,thenpresstheENTERbutton. Pressthe▲or▼buttontoselectSWUpgrade,thenpresstheENTERbutton. The message “Scanning for USB. It may take up to 30 seconds.” is displayed.
3. If the firmware on the USB is properly recognized, the message. “Upgrade version xxxx to version xxxx? The system would be reset after upgrade.” is displayed. Press the ◀ or ▶ button to select OK, then press the ENTER button. The upgrade starts. Please be careful to not disconnect the power or remove the USB drive while upgrades are being applied. TheTVwillshutoffandturnonautomaticallyaftercompletingthefirmwareupgrade.Please check the firmware version after the upgrades are complete.
※ The firmware and upgrade process may be different by country and region.
Scanning for USB.....It may take up to 30 seconds.
Melody : MediumEntertainment : Off
SWUpgrade ►Setup
Software Upgrade
Upgrade version XXXX to version XXXX ? Thesystem would be reset after upgrade.
CancelOK
TVRearPanel
USBDrive
Troubleshooting
Samsung Electronics 4-25
4-3-2 HowtoChecktheVersionoftheProgram
1. Procedures for checking in the Factory Menu. When entering Factory Mode, the version of the software is displayed at the bottom of the menu as described on page 4-6.
2. Procedures for checking in the user menu. When entering setup menu and choosing the SW Upgrade, press INFO button on the remote control Software version is displayed at the bottom of the picture.
